diff options
Diffstat (limited to 'src/mesa/shader')
| -rw-r--r-- | src/mesa/shader/nvfragparse.c | 1767 | ||||
| -rw-r--r-- | src/mesa/shader/nvfragparse.h | 52 | ||||
| -rw-r--r-- | src/mesa/shader/nvfragprog.h | 160 | ||||
| -rw-r--r-- | src/mesa/shader/nvprogram.c | 871 | ||||
| -rw-r--r-- | src/mesa/shader/nvprogram.h | 119 | ||||
| -rw-r--r-- | src/mesa/shader/nvvertexec.c | 839 | ||||
| -rw-r--r-- | src/mesa/shader/nvvertexec.h | 43 | ||||
| -rw-r--r-- | src/mesa/shader/nvvertparse.c | 1496 | ||||
| -rw-r--r-- | src/mesa/shader/nvvertparse.h | 50 | ||||
| -rw-r--r-- | src/mesa/shader/nvvertprog.h | 107 | ||||
| -rw-r--r-- | src/mesa/shader/program.c | 1271 | ||||
| -rw-r--r-- | src/mesa/shader/program.h | 253 |
12 files changed, 7028 insertions, 0 deletions
diff --git a/src/mesa/shader/nvfragparse.c b/src/mesa/shader/nvfragparse.c new file mode 100644 index 00000000000..b742ff0a32d --- /dev/null +++ b/src/mesa/shader/nvfragparse.c @@ -0,0 +1,1767 @@ +/* + * Mesa 3-D graphics library + * Version: 6.0 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file nvfragparse.c + * NVIDIA fragment program parser. + * \author Brian Paul + */ + +/* + * Regarding GL_NV_fragment_program: + * + * Portions of this software may use or implement intellectual + * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims + * any and all warranties with respect to such intellectual property, + * including any use thereof or modifications thereto. + */ + +#include "glheader.h" +#include "context.h" +#include "hash.h" +#include "imports.h" +#include "macros.h" +#include "mtypes.h" +#include "nvfragprog.h" +#include "nvfragparse.h" +#include "nvprogram.h" +#include "program.h" + + +#define INPUT_1V 1 +#define INPUT_2V 2 +#define INPUT_3V 3 +#define INPUT_1S 4 +#define INPUT_2S 5 +#define INPUT_CC 6 +#define INPUT_1V_T 7 /* one source vector, plus textureId */ +#define INPUT_3V_T 8 /* one source vector, plus textureId */ +#define INPUT_NONE 9 +#define OUTPUT_V 20 +#define OUTPUT_S 21 +#define OUTPUT_NONE 22 + +/* IRIX defines some of these */ +#undef _R +#undef _H +#undef _X +#undef _C +#undef _S + +/* Optional suffixes */ +#define _R FLOAT32 /* float */ +#define _H FLOAT16 /* half-float */ +#define _X FIXED12 /* fixed */ +#define _C 0x08 /* set cond codes */ +#define _S 0x10 /* saturate, clamp result to [0,1] */ + +struct instruction_pattern { + const char *name; + enum fp_opcode opcode; + GLuint inputs; + GLuint outputs; + GLuint suffixes; +}; + +static const struct instruction_pattern Instructions[] = { + { "ADD", FP_OPCODE_ADD, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "COS", FP_OPCODE_COS, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "DDX", FP_OPCODE_DDX, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "DDY", FP_OPCODE_DDY, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "DP3", FP_OPCODE_DP3, INPUT_2V, OUTPUT_S, _R | _H | _X | _C | _S }, + { "DP4", FP_OPCODE_DP4, INPUT_2V, OUTPUT_S, _R | _H | _X | _C | _S }, + { "DST", FP_OPCODE_DP4, INPUT_2V, OUTPUT_V, _R | _H | _C | _S }, + { "EX2", FP_OPCODE_DP4, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "FLR", FP_OPCODE_FLR, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "FRC", FP_OPCODE_FRC, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "KIL", FP_OPCODE_KIL, INPUT_CC, OUTPUT_NONE, 0 }, + { "LG2", FP_OPCODE_LG2, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "LIT", FP_OPCODE_LIT, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "LRP", FP_OPCODE_LRP, INPUT_3V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MAD", FP_OPCODE_MAD, INPUT_3V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MAX", FP_OPCODE_MAX, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MIN", FP_OPCODE_MIN, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MOV", FP_OPCODE_MOV, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MUL", FP_OPCODE_MUL, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "PK2H", FP_OPCODE_PK2H, INPUT_1V, OUTPUT_S, 0 }, + { "PK2US", FP_OPCODE_PK2US, INPUT_1V, OUTPUT_S, 0 }, + { "PK4B", FP_OPCODE_PK4B, INPUT_1V, OUTPUT_S, 0 }, + { "PK4UB", FP_OPCODE_PK4UB, INPUT_1V, OUTPUT_S, 0 }, + { "POW", FP_OPCODE_POW, INPUT_2S, OUTPUT_S, _R | _H | _C | _S }, + { "RCP", FP_OPCODE_RCP, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "RFL", FP_OPCODE_RFL, INPUT_2V, OUTPUT_V, _R | _H | _C | _S }, + { "RSQ", FP_OPCODE_RSQ, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "SEQ", FP_OPCODE_SEQ, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SFL", FP_OPCODE_SFL, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SGE", FP_OPCODE_SGE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SGT", FP_OPCODE_SGT, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SIN", FP_OPCODE_SIN, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "SLE", FP_OPCODE_SLE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SLT", FP_OPCODE_SLT, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SNE", FP_OPCODE_SNE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "STR", FP_OPCODE_STR, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SUB", FP_OPCODE_SUB, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "TEX", FP_OPCODE_TEX, INPUT_1V_T, OUTPUT_V, _C | _S }, + { "TXD", FP_OPCODE_TXD, INPUT_3V_T, OUTPUT_V, _C | _S }, + { "TXP", FP_OPCODE_TXP, INPUT_1V_T, OUTPUT_V, _C | _S }, + { "UP2H", FP_OPCODE_UP2H, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP2US", FP_OPCODE_UP2US, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP4B", FP_OPCODE_UP4B, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP4UB", FP_OPCODE_UP4UB, INPUT_1S, OUTPUT_V, _C | _S }, + { "X2D", FP_OPCODE_X2D, INPUT_3V, OUTPUT_V, _R | _H | _C | _S }, + { NULL, (enum fp_opcode) -1, 0, 0, 0 } +}; + + +/* + * Information needed or computed during parsing. + * Remember, we can't modify the target program object until we've + * _successfully_ parsed the program text. + */ +struct parse_state { + GLcontext *ctx; + const GLubyte *start; /* start of program string */ + const GLubyte *pos; /* current position */ + const GLubyte *curLine; + struct fragment_program *program; /* current program */ + + struct program_parameter_list *parameters; + + GLuint numInst; /* number of instructions parsed */ + GLuint inputsRead; /* bitmask of input registers used */ + GLuint outputsWritten; /* bitmask of 1 << FRAG_OUTPUT_* bits */ + GLuint texturesUsed[MAX_TEXTURE_IMAGE_UNITS]; +}; + + + +/* + * Called whenever we find an error during parsing. + */ +static void +record_error(struct parse_state *parseState, const char *msg, int lineNo) +{ +#ifdef DEBUG + GLint line, column; + const GLubyte *lineStr; + lineStr = _mesa_find_line_column(parseState->start, + parseState->pos, &line, &column); + _mesa_debug(parseState->ctx, + "nvfragparse.c(%d): line %d, column %d:%s (%s)\n", + lineNo, line, column, (char *) lineStr, msg); + _mesa_free((void *) lineStr); +#else + (void) lineNo; +#endif + + /* Check that no error was already recorded. Only record the first one. */ + if (parseState->ctx->Program.ErrorString[0] == 0) { + _mesa_set_program_error(parseState->ctx, + parseState->pos - parseState->start, + msg); + } +} + + +#define RETURN_ERROR \ +do { \ + record_error(parseState, "Unexpected end of input.", __LINE__); \ + return GL_FALSE; \ +} while(0) + +#define RETURN_ERROR1(msg) \ +do { \ + record_error(parseState, msg, __LINE__); \ + return GL_FALSE; \ +} while(0) + +#define RETURN_ERROR2(msg1, msg2) \ +do { \ + char err[1000]; \ + _mesa_sprintf(err, "%s %s", msg1, msg2); \ + record_error(parseState, err, __LINE__); \ + return GL_FALSE; \ +} while(0) + + + + +/* + * Search a list of instruction structures for a match. + */ +static struct instruction_pattern +MatchInstruction(const GLubyte *token) +{ + const struct instruction_pattern *inst; + struct instruction_pattern result; + + for (inst = Instructions; inst->name; inst++) { + if (_mesa_strncmp((const char *) token, inst->name, 3) == 0) { + /* matched! */ + int i = 3; + result = *inst; + result.suffixes = 0; + /* look at suffix */ + if (token[i] == 'R') { + result.suffixes |= _R; + i++; + } + else if (token[i] == 'H') { + result.suffixes |= _H; + i++; + } + else if (token[i] == 'X') { + result.suffixes |= _X; + i++; + } + if (token[i] == 'C') { + result.suffixes |= _C; + i++; + } + if (token[i] == '_' && token[i+1] == 'S' && + token[i+2] == 'A' && token[i+3] == 'T') { + result.suffixes |= _S; + } + return result; + } + } + result.opcode = (enum fp_opcode) -1; + return result; +} + + + + +/**********************************************************************/ + + +static GLboolean IsLetter(GLubyte b) +{ + return (b >= 'a' && b <= 'z') || + (b >= 'A' && b <= 'Z') || + (b == '_') || + (b == '$'); +} + + +static GLboolean IsDigit(GLubyte b) +{ + return b >= '0' && b <= '9'; +} + + +static GLboolean IsWhitespace(GLubyte b) +{ + return b == ' ' || b == '\t' || b == '\n' || b == '\r'; +} + + +/** + * Starting at 'str' find the next token. A token can be an integer, + * an identifier or punctuation symbol. + * \return <= 0 we found an error, else, return number of characters parsed. + */ +static GLint +GetToken(struct parse_state *parseState, GLubyte *token) +{ + const GLubyte *str = parseState->pos; + GLint i = 0, j = 0; + + token[0] = 0; + + /* skip whitespace and comments */ + while (str[i] && (IsWhitespace(str[i]) || str[i] == '#')) { + if (str[i] == '#') { + /* skip comment */ + while (str[i] && (str[i] != '\n' && str[i] != '\r')) { + i++; + } + if (str[i] == '\n' || str[i] == '\r') + parseState->curLine = str + i + 1; + } + else { + /* skip whitespace */ + if (str[i] == '\n' || str[i] == '\r') + parseState->curLine = str + i + 1; + i++; + } + } + + if (str[i] == 0) + return -i; + + /* try matching an integer */ + while (str[i] && IsDigit(str[i])) { + token[j++] = str[i++]; + } + if (j > 0 || !str[i]) { + token[j] = 0; + return i; + } + + /* try matching an identifier */ + if (IsLetter(str[i])) { + while (str[i] && (IsLetter(str[i]) || IsDigit(str[i]))) { + token[j++] = str[i++]; + } + token[j] = 0; + return i; + } + + /* punctuation character */ + if (str[i]) { + token[0] = str[i++]; + token[1] = 0; + return i; + } + + /* end of input */ + token[0] = 0; + return i; +} + + +/** + * Get next token from input stream and increment stream pointer past token. + */ +static GLboolean +Parse_Token(struct parse_state *parseState, GLubyte *token) +{ + GLint i; + i = GetToken(parseState, token); + if (i <= 0) { + parseState->pos += (-i); + return GL_FALSE; + } + parseState->pos += i; + return GL_TRUE; +} + + +/** + * Get next token from input stream but don't increment stream pointer. + */ +static GLboolean +Peek_Token(struct parse_state *parseState, GLubyte *token) +{ + GLint i, len; + i = GetToken(parseState, token); + if (i <= 0) { + parseState->pos += (-i); + return GL_FALSE; + } + len = _mesa_strlen((const char *) token); + parseState->pos += (i - len); + return GL_TRUE; +} + + +/**********************************************************************/ + +static const char *InputRegisters[MAX_NV_FRAGMENT_PROGRAM_INPUTS + 1] = { + "WPOS", "COL0", "COL1", "FOGC", + "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL +}; + +static const char *OutputRegisters[MAX_NV_FRAGMENT_PROGRAM_OUTPUTS + 1] = { + "COLR", "COLH", + /* These are only allows for register combiners */ + /* + "TEX0", "TEX1", "TEX2", "TEX3", + */ + "DEPR", NULL +}; + + + + +/**********************************************************************/ + +/** + * Try to match 'pattern' as the next token after any whitespace/comments. + */ +static GLboolean +Parse_String(struct parse_state *parseState, const char *pattern) +{ + const GLubyte *m; + GLint i; + + /* skip whitespace and comments */ + while (IsWhitespace(*parseState->pos) || *parseState->pos == '#') { + if (*parseState->pos == '#') { + while (*parseState->pos && (*parseState->pos != '\n' && *parseState->pos != '\r')) { + parseState->pos += 1; + } + if (*parseState->pos == '\n' || *parseState->pos == '\r') + parseState->curLine = parseState->pos + 1; + } + else { + /* skip whitespace */ + if (*parseState->pos == '\n' || *parseState->pos == '\r') + parseState->curLine = parseState->pos + 1; + parseState->pos += 1; + } + } + + /* Try to match the pattern */ + m = parseState->pos; + for (i = 0; pattern[i]; i++) { + if (*m != (GLubyte) pattern[i]) + return GL_FALSE; + m += 1; + } + parseState->pos = m; + + return GL_TRUE; /* success */ +} + + +static GLboolean +Parse_Identifier(struct parse_state *parseState, GLubyte *ident) +{ + if (!Parse_Token(parseState, ident)) + RETURN_ERROR; + if (IsLetter(ident[0])) + return GL_TRUE; + else + RETURN_ERROR1("Expected an identfier"); +} + + +/** + * Parse a floating point constant, or a defined symbol name. + * [+/-]N[.N[eN]] + * Output: number[0 .. 3] will get the value. + */ +static GLboolean +Parse_ScalarConstant(struct parse_state *parseState, GLfloat *number) +{ + char *end = NULL; + + *number = (GLfloat) _mesa_strtod((const char *) parseState->pos, &end); + + if (end && end > (char *) parseState->pos) { + /* got a number */ + parseState->pos = (GLubyte *) end; + number[1] = *number; + number[2] = *number; + number[3] = *number; + return GL_TRUE; + } + else { + /* should be an identifier */ + GLubyte ident[100]; + const GLfloat *constant; + if (!Parse_Identifier(parseState, ident)) + RETURN_ERROR1("Expected an identifier"); + constant = _mesa_lookup_parameter_value(parseState->parameters, + -1, (const char *) ident); + /* XXX Check that it's a constant and not a parameter */ + if (!constant) { + RETURN_ERROR1("Undefined symbol"); + } + else { + COPY_4V(number, constant); + return GL_TRUE; + } + } +} + + + +/** + * Parse a vector constant, one of: + * { float } + * { float, float } + * { float, float, float } + * { float, float, float, float } + */ +static GLboolean +Parse_VectorConstant(struct parse_state *parseState, GLfloat *vec) +{ + /* "{" was already consumed */ + + ASSIGN_4V(vec, 0.0, 0.0, 0.0, 1.0); + + if (!Parse_ScalarConstant(parseState, vec+0)) /* X */ + return GL_FALSE; + + if (Parse_String(parseState, "}")) { + return GL_TRUE; + } + + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(parseState, vec+1)) /* Y */ + return GL_FALSE; + + if (Parse_String(parseState, "}")) { + return GL_TRUE; + } + + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(parseState, vec+2)) /* Z */ + return GL_FALSE; + + if (Parse_String(parseState, "}")) { + return GL_TRUE; + } + + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(parseState, vec+3)) /* W */ + return GL_FALSE; + + if (!Parse_String(parseState, "}")) + RETURN_ERROR1("Expected closing brace in vector constant"); + + return GL_TRUE; +} + + +/** + * Parse <number>, <varname> or {a, b, c, d}. + * Return number of values in the vector or scalar, or zero if parse error. + */ +static GLuint +Parse_VectorOrScalarConstant(struct parse_state *parseState, GLfloat *vec) +{ + if (Parse_String(parseState, "{")) { + return Parse_VectorConstant(parseState, vec); + } + else { + GLboolean b = Parse_ScalarConstant(parseState, vec); + if (b) { + vec[1] = vec[2] = vec[3] = vec[0]; + } + return b; + } +} + + +/** + * Parse a texture image source: + * [TEX0 | TEX1 | .. | TEX15] , [1D | 2D | 3D | CUBE | RECT] + */ +static GLboolean +Parse_TextureImageId(struct parse_state *parseState, + GLubyte *texUnit, GLubyte *texTargetBit) +{ + GLubyte imageSrc[100]; + GLint unit; + + if (!Parse_Token(parseState, imageSrc)) + RETURN_ERROR; + + if (imageSrc[0] != 'T' || + imageSrc[1] != 'E' || + imageSrc[2] != 'X') { + RETURN_ERROR1("Expected TEX# source"); + } + unit = _mesa_atoi((const char *) imageSrc + 3); + if ((unit < 0 || unit > MAX_TEXTURE_IMAGE_UNITS) || + (unit == 0 && (imageSrc[3] != '0' || imageSrc[4] != 0))) { + RETURN_ERROR1("Invalied TEX# source index"); + } + *texUnit = unit; + + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + + if (Parse_String(parseState, "1D")) { + *texTargetBit = TEXTURE_1D_BIT; + } + else if (Parse_String(parseState, "2D")) { + *texTargetBit = TEXTURE_2D_BIT; + } + else if (Parse_String(parseState, "3D")) { + *texTargetBit = TEXTURE_3D_BIT; + } + else if (Parse_String(parseState, "CUBE")) { + *texTargetBit = TEXTURE_CUBE_BIT; + } + else if (Parse_String(parseState, "RECT")) { + *texTargetBit = TEXTURE_RECT_BIT; + } + else { + RETURN_ERROR1("Invalid texture target token"); + } + + /* update record of referenced texture units */ + parseState->texturesUsed[*texUnit] |= *texTargetBit; + if (_mesa_bitcount(parseState->texturesUsed[*texUnit]) > 1) { + RETURN_ERROR1("Only one texture target can be used per texture unit."); + } + + return GL_TRUE; +} + + +/** + * Parse a scalar suffix like .x, .y, .z or .w or parse a swizzle suffix + * like .wxyz, .xxyy, etc and return the swizzle indexes. + */ +static GLboolean +Parse_SwizzleSuffix(const GLubyte *token, GLuint swizzle[4]) +{ + if (token[1] == 0) { + /* single letter swizzle (scalar) */ + if (token[0] == 'x') + ASSIGN_4V(swizzle, 0, 0, 0, 0); + else if (token[0] == 'y') + ASSIGN_4V(swizzle, 1, 1, 1, 1); + else if (token[0] == 'z') + ASSIGN_4V(swizzle, 2, 2, 2, 2); + else if (token[0] == 'w') + ASSIGN_4V(swizzle, 3, 3, 3, 3); + else + return GL_FALSE; + } + else { + /* 4-component swizzle (vector) */ + GLint k; + for (k = 0; token[k] && k < 4; k++) { + if (token[k] == 'x') + swizzle[k] = 0; + else if (token[k] == 'y') + swizzle[k] = 1; + else if (token[k] == 'z') + swizzle[k] = 2; + else if (token[k] == 'w') + swizzle[k] = 3; + else + return GL_FALSE; + } + if (k != 4) + return GL_FALSE; + } + return GL_TRUE; +} + + +static GLboolean +Parse_CondCodeMask(struct parse_state *parseState, + struct fp_dst_register *dstReg) +{ + if (Parse_String(parseState, "EQ")) + dstReg->CondMask = COND_EQ; + else if (Parse_String(parseState, "GE")) + dstReg->CondMask = COND_GE; + else if (Parse_String(parseState, "GT")) + dstReg->CondMask = COND_GT; + else if (Parse_String(parseState, "LE")) + dstReg->CondMask = COND_LE; + else if (Parse_String(parseState, "LT")) + dstReg->CondMask = COND_LT; + else if (Parse_String(parseState, "NE")) + dstReg->CondMask = COND_NE; + else if (Parse_String(parseState, "TR")) + dstReg->CondMask = COND_TR; + else if (Parse_String(parseState, "FL")) + dstReg->CondMask = COND_FL; + else + RETURN_ERROR1("Invalid condition code mask"); + + /* look for optional .xyzw swizzle */ + if (Parse_String(parseState, ".")) { + GLubyte token[100]; + if (!Parse_Token(parseState, token)) /* get xyzw suffix */ + RETURN_ERROR; + + if (!Parse_SwizzleSuffix(token, dstReg->CondSwizzle)) + RETURN_ERROR1("Invalid swizzle suffix"); + } + + return GL_TRUE; +} + + +/** + * Parse a temporary register: Rnn or Hnn + */ +static GLboolean +Parse_TempReg(struct parse_state *parseState, GLint *tempRegNum) +{ + GLubyte token[100]; + + /* Should be 'R##' or 'H##' */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + if (token[0] != 'R' && token[0] != 'H') + RETURN_ERROR1("Expected R## or H##"); + + if (IsDigit(token[1])) { + GLint reg = _mesa_atoi((const char *) (token + 1)); + if (token[0] == 'H') + reg += 32; + if (reg >= MAX_NV_FRAGMENT_PROGRAM_TEMPS) + RETURN_ERROR1("Invalid temporary register name"); + *tempRegNum = reg; + } + else { + RETURN_ERROR1("Invalid temporary register name"); + } + + return GL_TRUE; +} + + +/** + * Parse a write-only dummy register: RC or HC. + */ +static GLboolean +Parse_DummyReg(struct parse_state *parseState, GLint *regNum) +{ + if (Parse_String(parseState, "RC")) { + *regNum = 0; + } + else if (Parse_String(parseState, "HC")) { + *regNum = 1; + } + else { + RETURN_ERROR1("Invalid write-only register name"); + } + + return GL_TRUE; +} + + +/** + * Parse a program local parameter register "p[##]" + */ +static GLboolean +Parse_ProgramParamReg(struct parse_state *parseState, GLint *regNum) +{ + GLubyte token[100]; + + if (!Parse_String(parseState, "p[")) + RETURN_ERROR1("Expected p["); + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (IsDigit(token[0])) { + /* a numbered program parameter register */ + GLint reg = _mesa_atoi((const char *) token); + if (reg >= MAX_NV_FRAGMENT_PROGRAM_PARAMS) + RETURN_ERROR1("Invalid constant program number"); + *regNum = reg; + } + else { + RETURN_ERROR; + } + + if (!Parse_String(parseState, "]")) + RETURN_ERROR1("Expected ]"); + + return GL_TRUE; +} + + +/** + * Parse f[name] - fragment input register + */ +static GLboolean +Parse_FragReg(struct parse_state *parseState, GLint *tempRegNum) +{ + GLubyte token[100]; + GLint j; + + /* Match 'f[' */ + if (!Parse_String(parseState, "f[")) + RETURN_ERROR1("Expected f["); + + /* get <name> and look for match */ + if (!Parse_Token(parseState, token)) { + RETURN_ERROR; + } + for (j = 0; InputRegisters[j]; j++) { + if (_mesa_strcmp((const char *) token, InputRegisters[j]) == 0) { + *tempRegNum = j; + parseState->inputsRead |= (1 << j); + break; + } + } + if (!InputRegisters[j]) { + /* unknown input register label */ + RETURN_ERROR2("Invalid register name", token); + } + + /* Match '[' */ + if (!Parse_String(parseState, "]")) + RETURN_ERROR1("Expected ]"); + + return GL_TRUE; +} + + +static GLboolean +Parse_OutputReg(struct parse_state *parseState, GLint *outputRegNum) +{ + GLubyte token[100]; + GLint j; + + /* Match "o[" */ + if (!Parse_String(parseState, "o[")) + RETURN_ERROR1("Expected o["); + + /* Get output reg name */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + /* try to match an output register name */ + for (j = 0; OutputRegisters[j]; j++) { + if (_mesa_strcmp((const char *) token, OutputRegisters[j]) == 0) { + static GLuint bothColors = (1 << FRAG_OUTPUT_COLR) | (1 << FRAG_OUTPUT_COLH); + *outputRegNum = j; + parseState->outputsWritten |= (1 << j); + if ((parseState->outputsWritten & bothColors) == bothColors) { + RETURN_ERROR1("Illegal to write to both o[COLR] and o[COLH]"); + } + break; + } + } + if (!OutputRegisters[j]) + RETURN_ERROR1("Invalid output register name"); + + /* Match ']' */ + if (!Parse_String(parseState, "]")) + RETURN_ERROR1("Expected ]"); + + return GL_TRUE; +} + + +static GLboolean +Parse_MaskedDstReg(struct parse_state *parseState, + struct fp_dst_register *dstReg) +{ + GLubyte token[100]; + + /* Dst reg can be R<n>, H<n>, o[n], RC or HC */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + if (_mesa_strcmp((const char *) token, "RC") == 0 || + _mesa_strcmp((const char *) token, "HC") == 0) { + /* a write-only register */ + dstReg->File = PROGRAM_WRITE_ONLY; + if (!Parse_DummyReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'R' || token[0] == 'H') { + /* a temporary register */ + dstReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'o') { + /* an output register */ + dstReg->File = PROGRAM_OUTPUT; + if (!Parse_OutputReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else { + RETURN_ERROR1("Invalid destination register name"); + } + + /* Parse optional write mask */ + if (Parse_String(parseState, ".")) { + /* got a mask */ + GLint k = 0; + + if (!Parse_Token(parseState, token)) /* get xyzw writemask */ + RETURN_ERROR; + + dstReg->WriteMask[0] = GL_FALSE; + dstReg->WriteMask[1] = GL_FALSE; + dstReg->WriteMask[2] = GL_FALSE; + dstReg->WriteMask[3] = GL_FALSE; + + if (token[k] == 'x') { + dstReg->WriteMask[0] = GL_TRUE; + k++; + } + if (token[k] == 'y') { + dstReg->WriteMask[1] = GL_TRUE; + k++; + } + if (token[k] == 'z') { + dstReg->WriteMask[2] = GL_TRUE; + k++; + } + if (token[k] == 'w') { + dstReg->WriteMask[3] = GL_TRUE; + k++; + } + if (k == 0) { + RETURN_ERROR1("Invalid writemask character"); + } + + } + else { + dstReg->WriteMask[0] = GL_TRUE; + dstReg->WriteMask[1] = GL_TRUE; + dstReg->WriteMask[2] = GL_TRUE; + dstReg->WriteMask[3] = GL_TRUE; + } + + /* optional condition code mask */ + if (Parse_String(parseState, "(")) { + /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".x|y|z|w) */ + /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".[xyzw]) */ + if (!Parse_CondCodeMask(parseState, dstReg)) + RETURN_ERROR; + + if (!Parse_String(parseState, ")")) /* consume ")" */ + RETURN_ERROR1("Expected )"); + + return GL_TRUE; + } + else { + /* no cond code mask */ + dstReg->CondMask = COND_TR; + dstReg->CondSwizzle[0] = 0; + dstReg->CondSwizzle[1] = 1; + dstReg->CondSwizzle[2] = 2; + dstReg->CondSwizzle[3] = 3; + return GL_TRUE; + } +} + + +/** + * Parse a vector source (register, constant, etc): + * <vectorSrc> ::= <absVectorSrc> + * | <baseVectorSrc> + * <absVectorSrc> ::= <negate> "|" <baseVectorSrc> "|" + */ +static GLboolean +Parse_VectorSrc(struct parse_state *parseState, + struct fp_src_register *srcReg) +{ + GLfloat sign = 1.0F; + GLubyte token[100]; + + /* + * First, take care of +/- and absolute value stuff. + */ + if (Parse_String(parseState, "-")) + sign = -1.0F; + else if (Parse_String(parseState, "+")) + sign = +1.0F; + + if (Parse_String(parseState, "|")) { + srcReg->Abs = GL_TRUE; + srcReg->NegateAbs = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + + if (Parse_String(parseState, "-")) + srcReg->NegateBase = GL_TRUE; + else if (Parse_String(parseState, "+")) + srcReg->NegateBase = GL_FALSE; + else + srcReg->NegateBase = GL_FALSE; + } + else { + srcReg->Abs = GL_FALSE; + srcReg->NegateAbs = GL_FALSE; + srcReg->NegateBase = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + } + + /* This should be the real src vector/register name */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + /* Src reg can be Rn, Hn, f[n], p[n], a named parameter, a scalar + * literal or vector literal. + */ + if (token[0] == 'R' || token[0] == 'H') { + srcReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'f') { + /* XXX this might be an identier! */ + srcReg->File = PROGRAM_INPUT; + if (!Parse_FragReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'p') { + /* XXX this might be an identier! */ + srcReg->File = PROGRAM_LOCAL_PARAM; + if (!Parse_ProgramParamReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (IsLetter(token[0])){ + GLubyte ident[100]; + GLint paramIndex; + if (!Parse_Identifier(parseState, ident)) + RETURN_ERROR; + paramIndex = _mesa_lookup_parameter_index(parseState->parameters, + -1, (const char *) ident); + if (paramIndex < 0) { + RETURN_ERROR2("Undefined constant or parameter: ", ident); + } + srcReg->File = PROGRAM_NAMED_PARAM; + srcReg->Index = paramIndex; + } + else if (IsDigit(token[0]) || token[0] == '-' || token[0] == '+' || token[0] == '.'){ + /* literal scalar constant */ + GLfloat values[4]; + GLuint paramIndex; + if (!Parse_ScalarConstant(parseState, values)) + RETURN_ERROR; + paramIndex = _mesa_add_unnamed_constant(parseState->parameters, values); + srcReg->File = PROGRAM_NAMED_PARAM; + srcReg->Index = paramIndex; + } + else if (token[0] == '{'){ + /* literal vector constant */ + GLfloat values[4]; + GLuint paramIndex; + (void) Parse_String(parseState, "{"); + if (!Parse_VectorConstant(parseState, values)) + RETURN_ERROR; + paramIndex = _mesa_add_unnamed_constant(parseState->parameters, values); + srcReg->File = PROGRAM_NAMED_PARAM; + srcReg->Index = paramIndex; + } + else { + RETURN_ERROR2("Invalid source register name", token); + } + + /* init swizzle fields */ + srcReg->Swizzle[0] = 0; + srcReg->Swizzle[1] = 1; + srcReg->Swizzle[2] = 2; + srcReg->Swizzle[3] = 3; + + /* Look for optional swizzle suffix */ + if (Parse_String(parseState, ".")) { + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (!Parse_SwizzleSuffix(token, srcReg->Swizzle)) + RETURN_ERROR1("Invalid swizzle suffix"); + } + + /* Finish absolute value */ + if (srcReg->Abs && !Parse_String(parseState, "|")) { + RETURN_ERROR1("Expected |"); + } + + return GL_TRUE; +} + + +static GLboolean +Parse_ScalarSrcReg(struct parse_state *parseState, + struct fp_src_register *srcReg) +{ + GLubyte token[100]; + GLfloat sign = 1.0F; + GLboolean needSuffix = GL_TRUE; + + /* + * First, take care of +/- and absolute value stuff. + */ + if (Parse_String(parseState, "-")) + sign = -1.0F; + else if (Parse_String(parseState, "+")) + sign = +1.0F; + + if (Parse_String(parseState, "|")) { + srcReg->Abs = GL_TRUE; + srcReg->NegateAbs = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + + if (Parse_String(parseState, "-")) + srcReg->NegateBase = GL_TRUE; + else if (Parse_String(parseState, "+")) + srcReg->NegateBase = GL_FALSE; + else + srcReg->NegateBase = GL_FALSE; + } + else { + srcReg->Abs = GL_FALSE; + srcReg->NegateAbs = GL_FALSE; + srcReg->NegateBase = (sign < 0.0F) ? GL_TRUE : GL_FALSE; + } + + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + /* Src reg can be R<n>, H<n> or a named fragment attrib */ + if (token[0] == 'R' || token[0] == 'H') { + srcReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'f') { + srcReg->File = PROGRAM_INPUT; + if (!Parse_FragReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == '{') { + /* vector literal */ + GLfloat values[4]; + GLuint paramIndex; + (void) Parse_String(parseState, "{"); + if (!Parse_VectorConstant(parseState, values)) + RETURN_ERROR; + paramIndex = _mesa_add_unnamed_constant(parseState->parameters, values); + srcReg->File = PROGRAM_NAMED_PARAM; + srcReg->Index = paramIndex; + } + else if (IsDigit(token[0])) { + /* scalar literal */ + GLfloat values[4]; + GLuint paramIndex; + if (!Parse_ScalarConstant(parseState, values)) + RETURN_ERROR; + paramIndex = _mesa_add_unnamed_constant(parseState->parameters, values); + srcReg->Index = paramIndex; + srcReg->File = PROGRAM_NAMED_PARAM; + needSuffix = GL_FALSE; + } + else { + RETURN_ERROR2("Invalid scalar source argument", token); + } + + if (needSuffix) { + /* parse .[xyzw] suffix */ + if (!Parse_String(parseState, ".")) + RETURN_ERROR1("Expected ."); + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (token[0] == 'x' && token[1] == 0) { + srcReg->Swizzle[0] = 0; + } + else if (token[0] == 'y' && token[1] == 0) { + srcReg->Swizzle[0] = 1; + } + else if (token[0] == 'z' && token[1] == 0) { + srcReg->Swizzle[0] = 2; + } + else if (token[0] == 'w' && token[1] == 0) { + srcReg->Swizzle[0] = 3; + } + else { + RETURN_ERROR1("Invalid scalar source suffix"); + } + } + else { + srcReg->Swizzle[0] = 0; + } + srcReg->Swizzle[1] = srcReg->Swizzle[2] = srcReg->Swizzle[3] = 0; + + /* Finish absolute value */ + if (srcReg->Abs && !Parse_String(parseState, "|")) { + RETURN_ERROR1("Expected |"); + } + + return GL_TRUE; +} + + + +static GLboolean +Parse_InstructionSequence(struct parse_state *parseState, + struct fp_instruction program[]) +{ + while (1) { + struct fp_instruction *inst = program + parseState->numInst; + struct instruction_pattern instMatch; + GLubyte token[100]; + + /* Initialize the instruction */ + inst->SrcReg[0].File = (enum register_file) -1; + inst->SrcReg[1].File = (enum register_file) -1; + inst->SrcReg[2].File = (enum register_file) -1; + inst->DstReg.File = (enum register_file) -1; + inst->DstReg.CondSwizzle[0] = 0; + inst->DstReg.CondSwizzle[1] = 1; + inst->DstReg.CondSwizzle[2] = 2; + inst->DstReg.CondSwizzle[3] = 3; + + /* special instructions */ + if (Parse_String(parseState, "DEFINE")) { + GLubyte id[100]; + GLfloat value[7]; /* yes, 7 to be safe */ + if (!Parse_Identifier(parseState, id)) + RETURN_ERROR; + /* XXX make sure id is not a reserved identifer, like R9 */ + if (!Parse_String(parseState, "=")) + RETURN_ERROR1("Expected ="); + if (!Parse_VectorOrScalarConstant(parseState, value)) + RETURN_ERROR; + if (!Parse_String(parseState, ";")) + RETURN_ERROR1("Expected ;"); + if (_mesa_lookup_parameter_index(parseState->parameters, + -1, (const char *) id) >= 0) { + RETURN_ERROR2(id, "already defined"); + } + _mesa_add_named_parameter(parseState->parameters, + (const char *) id, value); + } + else if (Parse_String(parseState, "DECLARE")) { + GLubyte id[100]; + GLfloat value[7] = {0, 0, 0, 0, 0, 0, 0}; /* yes, to be safe */ + if (!Parse_Identifier(parseState, id)) + RETURN_ERROR; + /* XXX make sure id is not a reserved identifer, like R9 */ + if (Parse_String(parseState, "=")) { + if (!Parse_VectorOrScalarConstant(parseState, value)) + RETURN_ERROR; + } + if (!Parse_String(parseState, ";")) + RETURN_ERROR1("Expected ;"); + if (_mesa_lookup_parameter_index(parseState->parameters, + -1, (const char *) id) >= 0) { + RETURN_ERROR2(id, "already declared"); + } + _mesa_add_named_parameter(parseState->parameters, + (const char *) id, value); + } + else if (Parse_String(parseState, "END")) { + inst->Opcode = FP_OPCODE_END; + inst->StringPos = parseState->curLine - parseState->start; + assert(inst->StringPos >= 0); + parseState->numInst++; + if (Parse_Token(parseState, token)) { + RETURN_ERROR1("Code after END opcode."); + } + break; + } + else { + /* general/arithmetic instruction */ + + /* get token */ + if (!Parse_Token(parseState, token)) { + RETURN_ERROR1("Missing END instruction."); + } + + /* try to find matching instuction */ + instMatch = MatchInstruction(token); + if (instMatch.opcode < 0) { + /* bad instruction name */ + RETURN_ERROR2("Unexpected token: ", token); + } + + inst->Opcode = instMatch.opcode; + inst->Precision = instMatch.suffixes & (_R | _H | _X); + inst->Saturate = (instMatch.suffixes & (_S)) ? GL_TRUE : GL_FALSE; + inst->UpdateCondRegister = (instMatch.suffixes & (_C)) ? GL_TRUE : GL_FALSE; + inst->StringPos = parseState->curLine - parseState->start; + assert(inst->StringPos >= 0); + + /* + * parse the input and output operands + */ + if (instMatch.outputs == OUTPUT_S || instMatch.outputs == OUTPUT_V) { + if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + } + else if (instMatch.outputs == OUTPUT_NONE) { + ASSERT(instMatch.opcode == FP_OPCODE_KIL); + /* This is a little weird, the cond code info is in the dest register */ + if (!Parse_CondCodeMask(parseState, &inst->DstReg)) + RETURN_ERROR; + } + + if (instMatch.inputs == INPUT_1V) { + if (!Parse_VectorSrc(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_2V) { + if (!Parse_VectorSrc(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_VectorSrc(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_3V) { + if (!Parse_VectorSrc(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_VectorSrc(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_VectorSrc(parseState, &inst->SrcReg[2])) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_1S) { + if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_2S) { + if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_CC) { + /* XXX to-do */ + } + else if (instMatch.inputs == INPUT_1V_T) { + if (!Parse_VectorSrc(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_TextureImageId(parseState, &inst->TexSrcUnit, + &inst->TexSrcBit)) + RETURN_ERROR; + } + else if (instMatch.inputs == INPUT_3V_T) { + if (!Parse_VectorSrc(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_VectorSrc(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_VectorSrc(parseState, &inst->SrcReg[2])) + RETURN_ERROR; + if (!Parse_String(parseState, ",")) + RETURN_ERROR1("Expected ,"); + if (!Parse_TextureImageId(parseState, &inst->TexSrcUnit, + &inst->TexSrcBit)) + RETURN_ERROR; + } + + /* end of statement semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR1("Expected ;"); + + parseState->numInst++; + + if (parseState->numInst >= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS) + RETURN_ERROR1("Program too long"); + } + } + return GL_TRUE; +} + + + +/** + * Parse/compile the 'str' returning the compiled 'program'. + * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos + * indicates the position of the error in 'str'. + */ +void +_mesa_parse_nv_fragment_program(GLcontext *ctx, GLenum dstTarget, + const GLubyte *str, GLsizei len, + struct fragment_program *program) +{ + struct parse_state parseState; + struct fp_instruction instBuffer[MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS]; + struct fp_instruction *newInst; + GLenum target; + GLubyte *programString; + + /* Make a null-terminated copy of the program string */ + programString = (GLubyte *) MALLOC(len + 1); + if (!programString) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + MEMCPY(programString, str, len); + programString[len] = 0; + + /* Get ready to parse */ + _mesa_bzero(&parseState, sizeof(struct parse_state)); + parseState.ctx = ctx; + parseState.start = programString; + parseState.program = program; + parseState.numInst = 0; + parseState.curLine = programString; + parseState.parameters = _mesa_new_parameter_list(); + + /* Reset error state */ + _mesa_set_program_error(ctx, -1, NULL); + + /* check the program header */ + if (_mesa_strncmp((const char *) programString, "!!FP1.0", 7) == 0) { + target = GL_FRAGMENT_PROGRAM_NV; + parseState.pos = programString + 7; + } + else if (_mesa_strncmp((const char *) programString, "!!FCP1.0", 8) == 0) { + /* fragment / register combiner program - not supported */ + _mesa_set_program_error(ctx, 0, "Invalid fragment program header"); + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(bad header)"); + return; + } + else { + /* invalid header */ + _mesa_set_program_error(ctx, 0, "Invalid fragment program header"); + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(bad header)"); + return; + } + + /* make sure target and header match */ + if (target != dstTarget) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLoadProgramNV(target mismatch 0x%x != 0x%x)", + target, dstTarget); + return; + } + + if (Parse_InstructionSequence(&parseState, instBuffer)) { + GLuint u; + /* successful parse! */ + + if (parseState.outputsWritten == 0) { + /* must write at least one output! */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "Invalid fragment program - no outputs written."); + return; + } + + /* copy the compiled instructions */ + assert(parseState.numInst <= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS); + newInst = (struct fp_instruction *) + MALLOC(parseState.numInst * sizeof(struct fp_instruction)); + if (!newInst) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; /* out of memory */ + } + MEMCPY(newInst, instBuffer, + parseState.numInst * sizeof(struct fp_instruction)); + + /* install the program */ + program->Base.Target = target; + if (program->Base.String) { + FREE(program->Base.String); + } + program->Base.String = programString; + program->Base.Format = GL_PROGRAM_FORMAT_ASCII_ARB; + if (program->Instructions) { + FREE(program->Instructions); + } + program->Instructions = newInst; + program->InputsRead = parseState.inputsRead; + program->OutputsWritten = parseState.outputsWritten; + for (u = 0; u < ctx->Const.MaxTextureImageUnits; u++) + program->TexturesUsed[u] = parseState.texturesUsed[u]; + + /* save program parameters */ + program->Parameters = parseState.parameters; + + /* allocate registers for declared program parameters */ +#if 00 + _mesa_assign_program_registers(&(program->SymbolTable)); +#endif + +#ifdef DEBUG + _mesa_printf("--- glLoadProgramNV(%d) result ---\n", program->Base.Id); + _mesa_print_nv_fragment_program(program); + _mesa_printf("----------------------------------\n"); +#endif + } + else { + /* Error! */ + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV"); + /* NOTE: _mesa_set_program_error would have been called already */ + } +} + + +static void +PrintSrcReg(const struct fragment_program *program, + const struct fp_src_register *src) +{ + static const char comps[5] = "xyzw"; + + if (src->NegateAbs) { + _mesa_printf("-"); + } + if (src->Abs) { + _mesa_printf("|"); + } + if (src->NegateBase) { + _mesa_printf("-"); + } + if (src->File == PROGRAM_NAMED_PARAM) { + if (program->Parameters->Parameters[src->Index].Type == CONSTANT) { + printf("{%g, %g, %g, %g}", + program->Parameters->Parameters[src->Index].Values[0], + program->Parameters->Parameters[src->Index].Values[1], + program->Parameters->Parameters[src->Index].Values[2], + program->Parameters->Parameters[src->Index].Values[3]); + } + else { + ASSERT(program->Parameters->Parameters[src->Index].Type + == NAMED_PARAMETER); + printf("%s", program->Parameters->Parameters[src->Index].Name); + } + } + else if (src->File == PROGRAM_OUTPUT) { + _mesa_printf("o[%s]", OutputRegisters[src->Index]); + } + else if (src->File == PROGRAM_INPUT) { + _mesa_printf("f[%s]", InputRegisters[src->Index]); + } + else if (src->File == PROGRAM_LOCAL_PARAM) { + _mesa_printf("p[%d]", src->Index); + } + else if (src->File == PROGRAM_TEMPORARY) { + if (src->Index >= 32) + _mesa_printf("H%d", src->Index); + else + _mesa_printf("R%d", src->Index); + } + else if (src->File == PROGRAM_WRITE_ONLY) { + _mesa_printf("%cC", "HR"[src->Index]); + } + else { + _mesa_problem(NULL, "Invalid fragment register %d", src->Index); + return; + } + if (src->Swizzle[0] == src->Swizzle[1] && + src->Swizzle[0] == src->Swizzle[2] && + src->Swizzle[0] == src->Swizzle[3]) { + _mesa_printf(".%c", comps[src->Swizzle[0]]); + } + else if (src->Swizzle[0] != 0 || + src->Swizzle[1] != 1 || + src->Swizzle[2] != 2 || + src->Swizzle[3] != 3) { + _mesa_printf(".%c%c%c%c", + comps[src->Swizzle[0]], + comps[src->Swizzle[1]], + comps[src->Swizzle[2]], + comps[src->Swizzle[3]]); + } + if (src->Abs) { + _mesa_printf("|"); + } +} + +static void +PrintTextureSrc(const struct fp_instruction *inst) +{ + _mesa_printf("TEX%d, ", inst->TexSrcUnit); + switch (inst->TexSrcBit) { + case TEXTURE_1D_BIT: + _mesa_printf("1D"); + break; + case TEXTURE_2D_BIT: + _mesa_printf("2D"); + break; + case TEXTURE_3D_BIT: + _mesa_printf("3D"); + break; + case TEXTURE_RECT_BIT: + _mesa_printf("RECT"); + break; + case TEXTURE_CUBE_BIT: + _mesa_printf("CUBE"); + break; + default: + _mesa_problem(NULL, "Invalid textue target in PrintTextureSrc"); + } +} + +static void +PrintCondCode(const struct fp_dst_register *dst) +{ + static const char *comps = "xyzw"; + static const char *ccString[] = { + "??", "GT", "EQ", "LT", "UN", "GE", "LE", "NE", "TR", "FL", "??" + }; + + _mesa_printf("%s", ccString[dst->CondMask]); + if (dst->CondSwizzle[0] == dst->CondSwizzle[1] && + dst->CondSwizzle[0] == dst->CondSwizzle[2] && + dst->CondSwizzle[0] == dst->CondSwizzle[3]) { + _mesa_printf(".%c", comps[dst->CondSwizzle[0]]); + } + else if (dst->CondSwizzle[0] != 0 || + dst->CondSwizzle[1] != 1 || + dst->CondSwizzle[2] != 2 || + dst->CondSwizzle[3] != 3) { + _mesa_printf(".%c%c%c%c", + comps[dst->CondSwizzle[0]], + comps[dst->CondSwizzle[1]], + comps[dst->CondSwizzle[2]], + comps[dst->CondSwizzle[3]]); + } +} + + +static void +PrintDstReg(const struct fp_dst_register *dst) +{ + GLint w = dst->WriteMask[0] + dst->WriteMask[1] + + dst->WriteMask[2] + dst->WriteMask[3]; + + if (dst->File == PROGRAM_OUTPUT) { + _mesa_printf("o[%s]", OutputRegisters[dst->Index]); + } + else if (dst->File == PROGRAM_TEMPORARY) { + if (dst->Index >= 32) + _mesa_printf("H%d", dst->Index); + else + _mesa_printf("R%d", dst->Index); + } + else if (dst->File == PROGRAM_LOCAL_PARAM) { + _mesa_printf("p[%d]", dst->Index); + } + else if (dst->File == PROGRAM_WRITE_ONLY) { + _mesa_printf("%cC", "HR"[dst->Index]); + } + else { + _mesa_printf("???"); + } + + if (w != 0 && w != 4) { + _mesa_printf("."); + if (dst->WriteMask[0]) + _mesa_printf("x"); + if (dst->WriteMask[1]) + _mesa_printf("y"); + if (dst->WriteMask[2]) + _mesa_printf("z"); + if (dst->WriteMask[3]) + _mesa_printf("w"); + } + + if (dst->CondMask != COND_TR || + dst->CondSwizzle[0] != 0 || + dst->CondSwizzle[1] != 1 || + dst->CondSwizzle[2] != 2 || + dst->CondSwizzle[3] != 3) { + _mesa_printf(" ("); + PrintCondCode(dst); + _mesa_printf(")"); + } +} + + +/** + * Print (unparse) the given vertex program. Just for debugging. + */ +void +_mesa_print_nv_fragment_program(const struct fragment_program *program) +{ + const struct fp_instruction *inst; + + for (inst = program->Instructions; inst->Opcode != FP_OPCODE_END; inst++) { + int i; + for (i = 0; Instructions[i].name; i++) { + if (inst->Opcode == Instructions[i].opcode) { + /* print instruction name */ + _mesa_printf("%s", Instructions[i].name); + if (inst->Precision == FLOAT16) + _mesa_printf("H"); + else if (inst->Precision == FIXED12) + _mesa_printf("X"); + if (inst->UpdateCondRegister) + _mesa_printf("C"); + if (inst->Saturate) + _mesa_printf("_SAT"); + _mesa_printf(" "); + + if (Instructions[i].inputs == INPUT_CC) { + PrintCondCode(&inst->DstReg); + } + else if (Instructions[i].outputs == OUTPUT_V || + Instructions[i].outputs == OUTPUT_S) { + /* print dest register */ + PrintDstReg(&inst->DstReg); + _mesa_printf(", "); + } + + /* print source register(s) */ + if (Instructions[i].inputs == INPUT_1V || + Instructions[i].inputs == INPUT_1S) { + PrintSrcReg(program, &inst->SrcReg[0]); + } + else if (Instructions[i].inputs == INPUT_2V || + Instructions[i].inputs == INPUT_2S) { + PrintSrcReg(program, &inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(program, &inst->SrcReg[1]); + } + else if (Instructions[i].inputs == INPUT_3V) { + PrintSrcReg(program, &inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(program, &inst->SrcReg[1]); + _mesa_printf(", "); + PrintSrcReg(program, &inst->SrcReg[2]); + } + else if (Instructions[i].inputs == INPUT_1V_T) { + PrintSrcReg(program, &inst->SrcReg[0]); + _mesa_printf(", "); + PrintTextureSrc(inst); + } + else if (Instructions[i].inputs == INPUT_3V_T) { + PrintSrcReg(program, &inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(program, &inst->SrcReg[1]); + _mesa_printf(", "); + PrintSrcReg(program, &inst->SrcReg[2]); + _mesa_printf(", "); + PrintTextureSrc(inst); + } + _mesa_printf(";\n"); + break; + } + } + if (!Instructions[i].name) { + _mesa_printf("Invalid opcode %d\n", inst->Opcode); + } + } + _mesa_printf("END\n"); +} + + +const char * +_mesa_nv_fragment_input_register_name(GLuint i) +{ + ASSERT(i < MAX_NV_FRAGMENT_PROGRAM_INPUTS); + return InputRegisters[i]; +} + + +const char * +_mesa_nv_fragment_output_register_name(GLuint i) +{ + ASSERT(i < MAX_NV_FRAGMENT_PROGRAM_OUTPUTS); + return OutputRegisters[i]; +} diff --git a/src/mesa/shader/nvfragparse.h b/src/mesa/shader/nvfragparse.h new file mode 100644 index 00000000000..849a7fbc7d6 --- /dev/null +++ b/src/mesa/shader/nvfragparse.h @@ -0,0 +1,52 @@ + +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + */ + + +#ifndef NVFRAGPARSE_H +#define NVFRAGPARSE_H + + +extern void +_mesa_parse_nv_fragment_program(GLcontext *ctx, GLenum target, + const GLubyte *str, GLsizei len, + struct fragment_program *program); + + +extern void +_mesa_print_nv_fragment_program(const struct fragment_program *program); + + +extern const char * +_mesa_nv_fragment_input_register_name(GLuint i); + + +extern const char * +_mesa_nv_fragment_output_register_name(GLuint i); + + +#endif diff --git a/src/mesa/shader/nvfragprog.h b/src/mesa/shader/nvfragprog.h new file mode 100644 index 00000000000..fa817d4b9cc --- /dev/null +++ b/src/mesa/shader/nvfragprog.h @@ -0,0 +1,160 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* Private fragment program types and constants only used by files + * related to fragment programs. + * + * XXX TO-DO: Rename this file "fragprog.h" since it's not NV-specific. + */ + + +#ifndef NVFRAGPROG_H +#define NVFRAGPROG_H + +#include "config.h" + + +/* output registers */ +#define FRAG_OUTPUT_COLR 0 +#define FRAG_OUTPUT_COLH 1 +#define FRAG_OUTPUT_DEPR 2 + + +/* condition codes */ +#define COND_GT 1 /* greater than zero */ +#define COND_EQ 2 /* equal to zero */ +#define COND_LT 3 /* less than zero */ +#define COND_UN 4 /* unordered (NaN) */ +#define COND_GE 5 /* greater then or equal to zero */ +#define COND_LE 6 /* less then or equal to zero */ +#define COND_NE 7 /* not equal to zero */ +#define COND_TR 8 /* always true */ +#define COND_FL 9 /* always false */ + + +/* instruction precision */ +#define FLOAT32 0x1 +#define FLOAT16 0x2 +#define FIXED12 0x4 + + +/* Fragment program instruction opcodes */ +enum fp_opcode { + FP_OPCODE_ABS = 1000, /* ARB_f_p only */ + FP_OPCODE_ADD, + FP_OPCODE_CMP, /* ARB_f_p only */ + FP_OPCODE_COS, + FP_OPCODE_DDX, /* NV_f_p only */ + FP_OPCODE_DDY, /* NV_f_p only */ + FP_OPCODE_DP3, + FP_OPCODE_DP4, + FP_OPCODE_DPH, /* ARB_f_p only */ + FP_OPCODE_DST, + FP_OPCODE_EX2, + FP_OPCODE_FLR, + FP_OPCODE_FRC, + FP_OPCODE_KIL, + FP_OPCODE_LG2, + FP_OPCODE_LIT, + FP_OPCODE_LRP, + FP_OPCODE_MAD, + FP_OPCODE_MAX, + FP_OPCODE_MIN, + FP_OPCODE_MOV, + FP_OPCODE_MUL, + FP_OPCODE_PK2H, /* NV_f_p only */ + FP_OPCODE_PK2US, /* NV_f_p only */ + FP_OPCODE_PK4B, /* NV_f_p only */ + FP_OPCODE_PK4UB, /* NV_f_p only */ + FP_OPCODE_POW, + FP_OPCODE_RCP, + FP_OPCODE_RFL, /* NV_f_p only */ + FP_OPCODE_RSQ, + FP_OPCODE_SCS, /* ARB_f_p only */ + FP_OPCODE_SEQ, /* NV_f_p only */ + FP_OPCODE_SFL, /* NV_f_p only */ + FP_OPCODE_SGE, /* NV_f_p only */ + FP_OPCODE_SGT, /* NV_f_p only */ + FP_OPCODE_SIN, + FP_OPCODE_SLE, /* NV_f_p only */ + FP_OPCODE_SLT, + FP_OPCODE_SNE, /* NV_f_p only */ + FP_OPCODE_STR, /* NV_f_p only */ + FP_OPCODE_SUB, + FP_OPCODE_SWZ, /* ARB_f_p only */ + FP_OPCODE_TEX, + FP_OPCODE_TXB, /* ARB_f_p only */ + FP_OPCODE_TXD, /* NV_f_p only */ + FP_OPCODE_TXP, + FP_OPCODE_UP2H, /* NV_f_p only */ + FP_OPCODE_UP2US, /* NV_f_p only */ + FP_OPCODE_UP4B, /* NV_f_p only */ + FP_OPCODE_UP4UB, /* NV_f_p only */ + FP_OPCODE_X2D, /* XPD in ARB_f_p */ + FP_OPCODE_END /* private opcode */ +}; + + +/* Instruction source register */ +struct fp_src_register +{ + enum register_file File; + GLint Index; + GLuint Swizzle[4]; + GLboolean NegateBase; /* negate before absolute value? */ + GLboolean Abs; /* take absolute value? */ + GLboolean NegateAbs; /* negate after absolute value? */ +}; + + +/* Instruction destination register */ +struct fp_dst_register +{ + enum register_file File; + GLint Index; + GLboolean WriteMask[4]; + GLuint CondMask; + GLuint CondSwizzle[4]; +}; + + +/* Fragment program instruction */ +struct fp_instruction +{ + enum fp_opcode Opcode; + struct fp_src_register SrcReg[3]; + struct fp_dst_register DstReg; + GLboolean Saturate; + GLboolean UpdateCondRegister; + GLubyte Precision; /* FLOAT32, FLOAT16 or FIXED12 */ + GLubyte TexSrcUnit; /* texture unit for TEX, TXD, TXP instructions */ + GLubyte TexSrcBit; /* TEXTURE_1D,2D,3D,CUBE,RECT_BIT source target */ +#if FEATURE_MESA_program_debug + GLint StringPos; +#endif +}; + + +#endif diff --git a/src/mesa/shader/nvprogram.c b/src/mesa/shader/nvprogram.c new file mode 100644 index 00000000000..d32cb7f2b51 --- /dev/null +++ b/src/mesa/shader/nvprogram.c @@ -0,0 +1,871 @@ +/* + * Mesa 3-D graphics library + * Version: 6.0 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file nvprogram.c + * NVIDIA vertex/fragment program state management functions. + * \author Brian Paul + */ + +/* + * Regarding GL_NV_fragment/vertex_program, GL_NV_vertex_program1_1, etc: + * + * Portions of this software may use or implement intellectual + * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims + * any and all warranties with respect to such intellectual property, + * including any use thereof or modifications thereto. + */ + +#include "glheader.h" +#include "context.h" +#include "hash.h" +#include "imports.h" +#include "macros.h" +#include "mtypes.h" +#include "nvfragparse.h" +#include "nvfragprog.h" +#include "nvvertexec.h" +#include "nvvertparse.h" +#include "nvvertprog.h" +#include "nvprogram.h" +#include "program.h" + + + +/** + * Execute a vertex state program. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ExecuteProgramNV(GLenum target, GLuint id, const GLfloat *params) +{ + struct vertex_program *vprog; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target != GL_VERTEX_STATE_PROGRAM_NV) { + _mesa_error(ctx, GL_INVALID_ENUM, "glExecuteProgramNV"); + return; + } + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + vprog = (struct vertex_program *) + _mesa_HashLookup(ctx->Shared->Programs, id); + + if (!vprog || vprog->Base.Target != GL_VERTEX_STATE_PROGRAM_NV) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glExecuteProgramNV"); + return; + } + + _mesa_init_vp_registers(ctx); + _mesa_init_tracked_matrices(ctx); + COPY_4V(ctx->VertexProgram.Inputs[VERT_ATTRIB_POS], params); + _mesa_exec_vertex_program(ctx, vprog); +} + + +/** + * Determine if a set of programs is resident in hardware. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +GLboolean GLAPIENTRY _mesa_AreProgramsResidentNV(GLsizei n, const GLuint *ids, + GLboolean *residences) +{ + GLint i, j; + GLboolean allResident = GL_TRUE; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV(n)"); + return GL_FALSE; + } + + for (i = 0; i < n; i++) { + const struct program *prog; + if (ids[i] == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV"); + return GL_FALSE; + } + prog = (const struct program *) + _mesa_HashLookup(ctx->Shared->Programs, ids[i]); + if (!prog) { + _mesa_error(ctx, GL_INVALID_VALUE, "glAreProgramsResidentNV"); + return GL_FALSE; + } + if (prog->Resident) { + if (!allResident) + residences[i] = GL_TRUE; + } + else { + if (allResident) { + allResident = GL_FALSE; + for (j = 0; j < i; j++) + residences[j] = GL_TRUE; + } + residences[i] = GL_FALSE; + } + } + + return allResident; +} + + +/** + * Request that a set of programs be resident in hardware. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_RequestResidentProgramsNV(GLsizei n, const GLuint *ids) +{ + GLint i; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(n)"); + return; + } + + /* just error checking for now */ + for (i = 0; i < n; i++) { + struct program *prog; + + if (ids[i] == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(id)"); + return; + } + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, ids[i]); + + if (!prog) { + _mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(id)"); + return; + } + + prog->Resident = GL_TRUE; + } +} + + +/** + * Get a program parameter register. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetProgramParameterfvNV(GLenum target, GLuint index, + GLenum pname, GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV) { + if (pname == GL_PROGRAM_PARAMETER_NV) { + if (index < MAX_NV_VERTEX_PROGRAM_PARAMS) { + COPY_4V(params, ctx->VertexProgram.Parameters[index]); + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramParameterfvNV(index)"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV(pname)"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterfvNV(target)"); + return; + } +} + + +/** + * Get a program parameter register. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetProgramParameterdvNV(GLenum target, GLuint index, + GLenum pname, GLdouble *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV) { + if (pname == GL_PROGRAM_PARAMETER_NV) { + if (index < MAX_NV_VERTEX_PROGRAM_PARAMS) { + COPY_4V(params, ctx->VertexProgram.Parameters[index]); + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramParameterdvNV(index)"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterdvNV(pname)"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramParameterdvNV(target)"); + return; + } +} + + +/** + * Get a program attribute. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetProgramivNV(GLuint id, GLenum pname, GLint *params) +{ + struct program *prog; + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->_CurrentProgram) + ASSERT_OUTSIDE_BEGIN_END(ctx); + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + if (!prog) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramivNV"); + return; + } + + switch (pname) { + case GL_PROGRAM_TARGET_NV: + *params = prog->Target; + return; + case GL_PROGRAM_LENGTH_NV: + *params = prog->String ? _mesa_strlen((char *) prog->String) : 0; + return; + case GL_PROGRAM_RESIDENT_NV: + *params = prog->Resident; + return; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivNV(pname)"); + return; + } +} + + +/** + * Get the program source code. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetProgramStringNV(GLuint id, GLenum pname, GLubyte *program) +{ + struct program *prog; + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->_CurrentProgram) + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (pname != GL_PROGRAM_STRING_NV) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramStringNV(pname)"); + return; + } + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + if (!prog) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramStringNV"); + return; + } + + if (prog->String) { + MEMCPY(program, prog->String, _mesa_strlen((char *) prog->String)); + } + else { + program[0] = 0; + } +} + + +/** + * Get matrix tracking information. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetTrackMatrixivNV(GLenum target, GLuint address, + GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV + && ctx->Extensions.NV_vertex_program) { + GLuint i; + + if ((address & 0x3) || address >= MAX_NV_VERTEX_PROGRAM_PARAMS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetTrackMatrixivNV(address)"); + return; + } + + i = address / 4; + + switch (pname) { + case GL_TRACK_MATRIX_NV: + params[0] = (GLint) ctx->VertexProgram.TrackMatrix[i]; + return; + case GL_TRACK_MATRIX_TRANSFORM_NV: + params[0] = (GLint) ctx->VertexProgram.TrackMatrixTransform[i]; + return; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTrackMatrixivNV"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetTrackMatrixivNV"); + return; + } +} + + +/** + * Get a vertex (or vertex array) attribute. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetVertexAttribdvNV(GLuint index, GLenum pname, GLdouble *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)"); + return; + } + + switch (pname) { + case GL_ATTRIB_ARRAY_SIZE_NV: + params[0] = ctx->Array.VertexAttrib[index].Size; + break; + case GL_ATTRIB_ARRAY_STRIDE_NV: + params[0] = ctx->Array.VertexAttrib[index].Stride; + break; + case GL_ATTRIB_ARRAY_TYPE_NV: + params[0] = ctx->Array.VertexAttrib[index].Type; + break; + case GL_CURRENT_ATTRIB_NV: + FLUSH_CURRENT(ctx, 0); + COPY_4V(params, ctx->Current.Attrib[index]); + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV"); + return; + } +} + +/** + * Get a vertex (or vertex array) attribute. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetVertexAttribfvNV(GLuint index, GLenum pname, GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)"); + return; + } + + switch (pname) { + case GL_ATTRIB_ARRAY_SIZE_NV: + params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Size; + break; + case GL_ATTRIB_ARRAY_STRIDE_NV: + params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Stride; + break; + case GL_ATTRIB_ARRAY_TYPE_NV: + params[0] = (GLfloat) ctx->Array.VertexAttrib[index].Type; + break; + case GL_CURRENT_ATTRIB_NV: + FLUSH_CURRENT(ctx, 0); + COPY_4V(params, ctx->Current.Attrib[index]); + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV"); + return; + } +} + +/** + * Get a vertex (or vertex array) attribute. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetVertexAttribivNV(GLuint index, GLenum pname, GLint *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)"); + return; + } + + switch (pname) { + case GL_ATTRIB_ARRAY_SIZE_NV: + params[0] = ctx->Array.VertexAttrib[index].Size; + break; + case GL_ATTRIB_ARRAY_STRIDE_NV: + params[0] = ctx->Array.VertexAttrib[index].Stride; + break; + case GL_ATTRIB_ARRAY_TYPE_NV: + params[0] = ctx->Array.VertexAttrib[index].Type; + break; + case GL_CURRENT_ATTRIB_NV: + FLUSH_CURRENT(ctx, 0); + params[0] = (GLint) ctx->Current.Attrib[index][0]; + params[1] = (GLint) ctx->Current.Attrib[index][1]; + params[2] = (GLint) ctx->Current.Attrib[index][2]; + params[3] = (GLint) ctx->Current.Attrib[index][3]; + break; + case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB: + if (!ctx->Extensions.ARB_vertex_buffer_object) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV"); + return; + } + params[0] = ctx->Array.VertexAttrib[index].BufferObj->Name; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribdvNV"); + return; + } +} + + +/** + * Get a vertex array attribute pointer. + * \note Not compiled into display lists. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_GetVertexAttribPointervNV(GLuint index, GLenum pname, GLvoid **pointer) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerNV(index)"); + return; + } + + if (pname != GL_ATTRIB_ARRAY_POINTER_NV) { + _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerNV(pname)"); + return; + } + + *pointer = (GLvoid *) ctx->Array.VertexAttrib[index].Ptr;; +} + + + +/** + * Load/parse/compile a program. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len, + const GLubyte *program) +{ + struct program *prog; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (id == 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glLoadProgramNV(id)"); + return; + } + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + + if (prog && prog->Target != 0 && prog->Target != target) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(target)"); + return; + } + + if ((target == GL_VERTEX_PROGRAM_NV || + target == GL_VERTEX_STATE_PROGRAM_NV) + && ctx->Extensions.NV_vertex_program) { + struct vertex_program *vprog = (struct vertex_program *) prog; + if (!vprog) { + vprog = CALLOC_STRUCT(vertex_program); + if (!vprog) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + vprog->Base.RefCount = 1; + vprog->Base.Resident = GL_TRUE; + _mesa_HashInsert(ctx->Shared->Programs, id, vprog); + } + _mesa_parse_nv_vertex_program(ctx, target, program, len, vprog); + } + else if (target == GL_FRAGMENT_PROGRAM_NV + && ctx->Extensions.NV_fragment_program) { + struct fragment_program *fprog = (struct fragment_program *) prog; + if (!fprog) { + fprog = CALLOC_STRUCT(fragment_program); + if (!fprog) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + fprog->Base.RefCount = 1; + fprog->Base.Resident = GL_TRUE; + _mesa_HashInsert(ctx->Shared->Programs, id, fprog); + } + _mesa_parse_nv_fragment_program(ctx, target, program, len, fprog); + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glLoadProgramNV(target)"); + } +} + + + +/** + * Set a program parameter register. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameter4dNV(GLenum target, GLuint index, + GLdouble x, GLdouble y, GLdouble z, GLdouble w) +{ + _mesa_ProgramParameter4fNV(target, index, + (GLfloat)x, (GLfloat)y, (GLfloat)z, (GLfloat)w); +} + + +/** + * Set a program parameter register. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameter4dvNV(GLenum target, GLuint index, + const GLdouble *params) +{ + _mesa_ProgramParameter4fNV(target, index, + (GLfloat)params[0], (GLfloat)params[1], + (GLfloat)params[2], (GLfloat)params[3]); +} + + +/** + * Set a program parameter register. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameter4fNV(GLenum target, GLuint index, + GLfloat x, GLfloat y, GLfloat z, GLfloat w) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV && ctx->Extensions.NV_vertex_program) { + if (index < MAX_NV_VERTEX_PROGRAM_PARAMS) { + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + ASSIGN_4V(ctx->VertexProgram.Parameters[index], x, y, z, w); + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameterNV(index)"); + return; + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameterNV"); + return; + } +} + + +/** + * Set a program parameter register. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameter4fvNV(GLenum target, GLuint index, + const GLfloat *params) +{ + _mesa_ProgramParameter4fNV(target, index, + params[0], params[1], params[2], params[3]); +} + + + +/** + * Set a sequence of program parameter registers. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameters4dvNV(GLenum target, GLuint index, + GLuint num, const GLdouble *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV && ctx->Extensions.NV_vertex_program) { + GLuint i; + if (index + num > MAX_NV_VERTEX_PROGRAM_PARAMS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameters4dvNV"); + return; + } + for (i = 0; i < num; i++) { + ctx->VertexProgram.Parameters[index + i][0] = (GLfloat) params[0]; + ctx->VertexProgram.Parameters[index + i][1] = (GLfloat) params[1]; + ctx->VertexProgram.Parameters[index + i][2] = (GLfloat) params[2]; + ctx->VertexProgram.Parameters[index + i][3] = (GLfloat) params[3]; + params += 4; + }; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameters4dvNV"); + return; + } +} + + +/** + * Set a sequence of program parameter registers. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_ProgramParameters4fvNV(GLenum target, GLuint index, + GLuint num, const GLfloat *params) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (target == GL_VERTEX_PROGRAM_NV && ctx->Extensions.NV_vertex_program) { + GLuint i; + if (index + num > MAX_NV_VERTEX_PROGRAM_PARAMS) { + _mesa_error(ctx, GL_INVALID_VALUE, "glProgramParameters4fvNV"); + return; + } + for (i = 0; i < num; i++) { + COPY_4V(ctx->VertexProgram.Parameters[index + i], params); + params += 4; + }; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramParameters4fvNV"); + return; + } +} + + + +/** + * Setup tracking of matrices into program parameter registers. + * \note Called from the GL API dispatcher. + */ +void GLAPIENTRY +_mesa_TrackMatrixNV(GLenum target, GLuint address, + GLenum matrix, GLenum transform) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + if (target == GL_VERTEX_PROGRAM_NV && ctx->Extensions.NV_vertex_program) { + if (address & 0x3) { + /* addr must be multiple of four */ + _mesa_error(ctx, GL_INVALID_VALUE, "glTrackMatrixNV(address)"); + return; + } + + switch (matrix) { + case GL_NONE: + case GL_MODELVIEW: + case GL_PROJECTION: + case GL_TEXTURE: + case GL_COLOR: + case GL_MODELVIEW_PROJECTION_NV: + case GL_MATRIX0_NV: + case GL_MATRIX1_NV: + case GL_MATRIX2_NV: + case GL_MATRIX3_NV: + case GL_MATRIX4_NV: + case GL_MATRIX5_NV: + case GL_MATRIX6_NV: + case GL_MATRIX7_NV: + /* OK, fallthrough */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(matrix)"); + return; + } + + switch (transform) { + case GL_IDENTITY_NV: + case GL_INVERSE_NV: + case GL_TRANSPOSE_NV: + case GL_INVERSE_TRANSPOSE_NV: + /* OK, fallthrough */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(transform)"); + return; + } + + ctx->VertexProgram.TrackMatrix[address / 4] = matrix; + ctx->VertexProgram.TrackMatrixTransform[address / 4] = transform; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glTrackMatrixNV(target)"); + return; + } +} + + +void GLAPIENTRY +_mesa_ProgramNamedParameter4fNV(GLuint id, GLsizei len, const GLubyte *name, + GLfloat x, GLfloat y, GLfloat z, GLfloat w) +{ + struct program *prog; + struct fragment_program *fragProg; + GLfloat *v; + + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + if (!prog || prog->Target != GL_FRAGMENT_PROGRAM_NV) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glProgramNamedParameterNV"); + return; + } + + if (len <= 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV"); + return; + } + + fragProg = (struct fragment_program *) prog; + v = _mesa_lookup_parameter_value(fragProg->Parameters, len, (char *) name); + if (v) { + v[0] = x; + v[1] = y; + v[2] = z; + v[3] = w; + return; + } + + _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV"); +} + + +void GLAPIENTRY +_mesa_ProgramNamedParameter4fvNV(GLuint id, GLsizei len, const GLubyte *name, + const float v[]) +{ + _mesa_ProgramNamedParameter4fNV(id, len, name, v[0], v[1], v[2], v[3]); +} + + +void GLAPIENTRY +_mesa_ProgramNamedParameter4dNV(GLuint id, GLsizei len, const GLubyte *name, + GLdouble x, GLdouble y, GLdouble z, GLdouble w) +{ + _mesa_ProgramNamedParameter4fNV(id, len, name, (GLfloat)x, (GLfloat)y, + (GLfloat)z, (GLfloat)w); +} + + +void GLAPIENTRY +_mesa_ProgramNamedParameter4dvNV(GLuint id, GLsizei len, const GLubyte *name, + const double v[]) +{ + _mesa_ProgramNamedParameter4fNV(id, len, name, + (GLfloat)v[0], (GLfloat)v[1], + (GLfloat)v[2], (GLfloat)v[3]); +} + + +void GLAPIENTRY +_mesa_GetProgramNamedParameterfvNV(GLuint id, GLsizei len, const GLubyte *name, + GLfloat *params) +{ + struct program *prog; + struct fragment_program *fragProg; + const GLfloat *v; + + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->_CurrentProgram) + ASSERT_OUTSIDE_BEGIN_END(ctx); + + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + if (!prog || prog->Target != GL_FRAGMENT_PROGRAM_NV) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramNamedParameterNV"); + return; + } + + if (len <= 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramNamedParameterNV"); + return; + } + + fragProg = (struct fragment_program *) prog; + v = _mesa_lookup_parameter_value(fragProg->Parameters, len, (char *) name); + if (v) { + params[0] = v[0]; + params[1] = v[1]; + params[2] = v[2]; + params[3] = v[3]; + return; + } + + _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramNamedParameterNV"); +} + + +void GLAPIENTRY +_mesa_GetProgramNamedParameterdvNV(GLuint id, GLsizei len, const GLubyte *name, + GLdouble *params) +{ + GLfloat floatParams[4]; + _mesa_GetProgramNamedParameterfvNV(id, len, name, floatParams); + COPY_4V(params, floatParams); +} diff --git a/src/mesa/shader/nvprogram.h b/src/mesa/shader/nvprogram.h new file mode 100644 index 00000000000..dcea7727e04 --- /dev/null +++ b/src/mesa/shader/nvprogram.h @@ -0,0 +1,119 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + */ + + +#ifndef NVPROGRAM_H +#define NVPROGRAM_H + + +extern void GLAPIENTRY +_mesa_ExecuteProgramNV(GLenum target, GLuint id, const GLfloat *params); + +extern GLboolean GLAPIENTRY +_mesa_AreProgramsResidentNV(GLsizei n, const GLuint *ids, GLboolean *residences); + +extern void GLAPIENTRY +_mesa_RequestResidentProgramsNV(GLsizei n, const GLuint *ids); + +extern void GLAPIENTRY +_mesa_GetProgramParameterfvNV(GLenum target, GLuint index, GLenum pname, GLfloat *params); + +extern void GLAPIENTRY +_mesa_GetProgramParameterdvNV(GLenum target, GLuint index, GLenum pname, GLdouble *params); + +extern void GLAPIENTRY +_mesa_GetProgramivNV(GLuint id, GLenum pname, GLint *params); + +extern void GLAPIENTRY +_mesa_GetProgramStringNV(GLuint id, GLenum pname, GLubyte *program); + +extern void GLAPIENTRY +_mesa_GetTrackMatrixivNV(GLenum target, GLuint address, GLenum pname, GLint *params); + +extern void GLAPIENTRY +_mesa_GetVertexAttribdvNV(GLuint index, GLenum pname, GLdouble *params); + +extern void GLAPIENTRY +_mesa_GetVertexAttribfvNV(GLuint index, GLenum pname, GLfloat *params); + +extern void GLAPIENTRY +_mesa_GetVertexAttribivNV(GLuint index, GLenum pname, GLint *params); + +extern void GLAPIENTRY +_mesa_GetVertexAttribPointervNV(GLuint index, GLenum pname, GLvoid **pointer); + +extern void GLAPIENTRY +_mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len, const GLubyte *program); + +extern void GLAPIENTRY +_mesa_ProgramParameter4dNV(GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); + +extern void GLAPIENTRY +_mesa_ProgramParameter4dvNV(GLenum target, GLuint index, const GLdouble *params); + +extern void GLAPIENTRY +_mesa_ProgramParameter4fNV(GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); + +extern void GLAPIENTRY +_mesa_ProgramParameter4fvNV(GLenum target, GLuint index, const GLfloat *params); + +extern void GLAPIENTRY +_mesa_ProgramParameters4dvNV(GLenum target, GLuint index, GLuint num, const GLdouble *params); + +extern void GLAPIENTRY +_mesa_ProgramParameters4fvNV(GLenum target, GLuint index, GLuint num, const GLfloat *params); + +extern void GLAPIENTRY +_mesa_TrackMatrixNV(GLenum target, GLuint address, GLenum matrix, GLenum transform); + + +extern void GLAPIENTRY +_mesa_ProgramNamedParameter4fNV(GLuint id, GLsizei len, const GLubyte *name, + GLfloat x, GLfloat y, GLfloat z, GLfloat w); + +extern void GLAPIENTRY +_mesa_ProgramNamedParameter4fvNV(GLuint id, GLsizei len, const GLubyte *name, + const float v[]); + +extern void GLAPIENTRY +_mesa_ProgramNamedParameter4dNV(GLuint id, GLsizei len, const GLubyte *name, + GLdouble x, GLdouble y, GLdouble z, GLdouble w); + +extern void GLAPIENTRY +_mesa_ProgramNamedParameter4dvNV(GLuint id, GLsizei len, const GLubyte *name, + const double v[]); + +extern void GLAPIENTRY +_mesa_GetProgramNamedParameterfvNV(GLuint id, GLsizei len, const GLubyte *name, + GLfloat *params); + +extern void GLAPIENTRY +_mesa_GetProgramNamedParameterdvNV(GLuint id, GLsizei len, const GLubyte *name, + GLdouble *params); + + +#endif diff --git a/src/mesa/shader/nvvertexec.c b/src/mesa/shader/nvvertexec.c new file mode 100644 index 00000000000..9663b38157d --- /dev/null +++ b/src/mesa/shader/nvvertexec.c @@ -0,0 +1,839 @@ +/* + * Mesa 3-D graphics library + * Version: 6.0.1 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file nvvertexec.c + * Code to execute vertex programs. + * \author Brian Paul + */ + +#include "glheader.h" +#include "context.h" +#include "imports.h" +#include "macros.h" +#include "mtypes.h" +#include "nvvertexec.h" +#include "nvvertprog.h" +#include "program.h" +#include "math/m_matrix.h" + + +static const GLfloat zeroVec[4] = { 0, 0, 0, 0 }; + + +/** + * Load/initialize the vertex program registers. + * This needs to be done per vertex. + */ +void +_mesa_init_vp_registers(GLcontext *ctx) +{ + GLuint i; + + /* Input registers get initialized from the current vertex attribs */ + MEMCPY(ctx->VertexProgram.Inputs, ctx->Current.Attrib, + VERT_ATTRIB_MAX * 4 * sizeof(GLfloat)); + + /* Output and temp regs are initialized to [0,0,0,1] */ + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_OUTPUTS; i++) { + ASSIGN_4V(ctx->VertexProgram.Outputs[i], 0.0F, 0.0F, 0.0F, 1.0F); + } + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_TEMPS; i++) { + ASSIGN_4V(ctx->VertexProgram.Temporaries[i], 0.0F, 0.0F, 0.0F, 1.0F); + } + + /* The program parameters aren't touched */ + /* XXX: This should be moved to glBegin() time, but its safe (and slow!) + * here - Karl + */ + if (ctx->VertexProgram.Current->Parameters) { + /* Grab the state */ + _mesa_load_state_parameters(ctx, ctx->VertexProgram.Current->Parameters); + + /* And copy it into the program state */ + for (i=0; i<ctx->VertexProgram.Current->Parameters->NumParameters; i++) { + MEMCPY(ctx->VertexProgram.Parameters[i], + &ctx->VertexProgram.Current->Parameters->Parameters[i].Values, + 4*sizeof(GLfloat)); + } + } +} + + + +/** + * Copy the 16 elements of a matrix into four consecutive program + * registers starting at 'pos'. + */ +static void +load_matrix(GLfloat registers[][4], GLuint pos, const GLfloat mat[16]) +{ + GLuint i; + for (i = 0; i < 4; i++) { + registers[pos + i][0] = mat[0 + i]; + registers[pos + i][1] = mat[4 + i]; + registers[pos + i][2] = mat[8 + i]; + registers[pos + i][3] = mat[12 + i]; + } +} + + +/** + * As above, but transpose the matrix. + */ +static void +load_transpose_matrix(GLfloat registers[][4], GLuint pos, + const GLfloat mat[16]) +{ + MEMCPY(registers[pos], mat, 16 * sizeof(GLfloat)); +} + + +/** + * Load all currently tracked matrices into the program registers. + * This needs to be done per glBegin/glEnd. + */ +void +_mesa_init_tracked_matrices(GLcontext *ctx) +{ + GLuint i; + + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { + /* point 'mat' at source matrix */ + GLmatrix *mat; + if (ctx->VertexProgram.TrackMatrix[i] == GL_MODELVIEW) { + mat = ctx->ModelviewMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_PROJECTION) { + mat = ctx->ProjectionMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_TEXTURE) { + mat = ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Top; + } + else if (ctx->VertexProgram.TrackMatrix[i] == GL_COLOR) { + mat = ctx->ColorMatrixStack.Top; + } + else if (ctx->VertexProgram.TrackMatrix[i]==GL_MODELVIEW_PROJECTION_NV) { + /* XXX verify the combined matrix is up to date */ + mat = &ctx->_ModelProjectMatrix; + } + else if (ctx->VertexProgram.TrackMatrix[i] >= GL_MATRIX0_NV && + ctx->VertexProgram.TrackMatrix[i] <= GL_MATRIX7_NV) { + GLuint n = ctx->VertexProgram.TrackMatrix[i] - GL_MATRIX0_NV; + ASSERT(n < MAX_PROGRAM_MATRICES); + mat = ctx->ProgramMatrixStack[n].Top; + } + else { + /* no matrix is tracked, but we leave the register values as-is */ + assert(ctx->VertexProgram.TrackMatrix[i] == GL_NONE); + continue; + } + + /* load the matrix */ + if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_IDENTITY_NV) { + load_matrix(ctx->VertexProgram.Parameters, i*4, mat->m); + } + else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_INVERSE_NV) { + _math_matrix_analyse(mat); /* update the inverse */ + assert((mat->flags & MAT_DIRTY_INVERSE) == 0); + load_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv); + } + else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_TRANSPOSE_NV) { + load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->m); + } + else { + assert(ctx->VertexProgram.TrackMatrixTransform[i] + == GL_INVERSE_TRANSPOSE_NV); + _math_matrix_analyse(mat); /* update the inverse */ + assert((mat->flags & MAT_DIRTY_INVERSE) == 0); + load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv); + } + } +} + + + +/** + * For debugging. Dump the current vertex program machine registers. + */ +void +_mesa_dump_vp_state( const struct vertex_program_state *state ) +{ + int i; + _mesa_printf("VertexIn:\n"); + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_INPUTS; i++) { + _mesa_printf("%d: %f %f %f %f ", i, + state->Inputs[i][0], + state->Inputs[i][1], + state->Inputs[i][2], + state->Inputs[i][3]); + } + _mesa_printf("\n"); + + _mesa_printf("VertexOut:\n"); + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_OUTPUTS; i++) { + _mesa_printf("%d: %f %f %f %f ", i, + state->Outputs[i][0], + state->Outputs[i][1], + state->Outputs[i][2], + state->Outputs[i][3]); + } + _mesa_printf("\n"); + + _mesa_printf("Registers:\n"); + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_TEMPS; i++) { + _mesa_printf("%d: %f %f %f %f ", i, + state->Temporaries[i][0], + state->Temporaries[i][1], + state->Temporaries[i][2], + state->Temporaries[i][3]); + } + _mesa_printf("\n"); + + _mesa_printf("Parameters:\n"); + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS; i++) { + _mesa_printf("%d: %f %f %f %f ", i, + state->Parameters[i][0], + state->Parameters[i][1], + state->Parameters[i][2], + state->Parameters[i][3]); + } + _mesa_printf("\n"); +} + + + +/** + * Return a pointer to the 4-element float vector specified by the given + * source register. + */ +static INLINE const GLfloat * +get_register_pointer( const struct vp_src_register *source, + const struct vertex_program_state *state ) +{ + if (source->RelAddr) { + const GLint reg = source->Index + state->AddressReg[0]; + ASSERT( (source->File == PROGRAM_ENV_PARAM) || + (source->File == PROGRAM_STATE_VAR) ); + if (reg < 0 || reg > MAX_NV_VERTEX_PROGRAM_PARAMS) + return zeroVec; + else + return state->Parameters[reg]; + } + else { + switch (source->File) { + case PROGRAM_TEMPORARY: + return state->Temporaries[source->Index]; + case PROGRAM_INPUT: + return state->Inputs[source->Index]; + case PROGRAM_LOCAL_PARAM: + /* XXX fix */ + return state->Temporaries[source->Index]; + case PROGRAM_ENV_PARAM: + return state->Parameters[source->Index]; + case PROGRAM_STATE_VAR: + return state->Parameters[source->Index]; + default: + _mesa_problem(NULL, + "Bad source register file in fetch_vector4(vp)"); + return NULL; + } + } + return NULL; +} + + +/** + * Fetch a 4-element float vector from the given source register. + * Apply swizzling and negating as needed. + */ +static INLINE void +fetch_vector4( const struct vp_src_register *source, + const struct vertex_program_state *state, + GLfloat result[4] ) +{ + const GLfloat *src = get_register_pointer(source, state); + + if (source->Negate) { + result[0] = -src[source->Swizzle[0]]; + result[1] = -src[source->Swizzle[1]]; + result[2] = -src[source->Swizzle[2]]; + result[3] = -src[source->Swizzle[3]]; + } + else { + result[0] = src[source->Swizzle[0]]; + result[1] = src[source->Swizzle[1]]; + result[2] = src[source->Swizzle[2]]; + result[3] = src[source->Swizzle[3]]; + } +} + + + +/** + * As above, but only return result[0] element. + */ +static INLINE void +fetch_vector1( const struct vp_src_register *source, + const struct vertex_program_state *state, + GLfloat result[4] ) +{ + const GLfloat *src = get_register_pointer(source, state); + + if (source->Negate) { + result[0] = -src[source->Swizzle[0]]; + } + else { + result[0] = src[source->Swizzle[0]]; + } +} + + +/** + * Store 4 floats into a register. + */ +static void +store_vector4( const struct vp_dst_register *dest, + struct vertex_program_state *state, + const GLfloat value[4] ) +{ + GLfloat *dst; + switch (dest->File) { + case PROGRAM_TEMPORARY: + dst = state->Temporaries[dest->Index]; + break; + case PROGRAM_OUTPUT: + dst = state->Outputs[dest->Index]; + break; + case PROGRAM_ENV_PARAM: + { + /* a slight hack */ + GET_CURRENT_CONTEXT(ctx); + dst = ctx->VertexProgram.Parameters[dest->Index]; + } + break; + default: + _mesa_problem(NULL, "Invalid register file in store_vector4(file=%d)", + dest->File); + return; + } + + if (dest->WriteMask[0]) + dst[0] = value[0]; + if (dest->WriteMask[1]) + dst[1] = value[1]; + if (dest->WriteMask[2]) + dst[2] = value[2]; + if (dest->WriteMask[3]) + dst[3] = value[3]; +} + + +/** + * Set x to positive or negative infinity. + */ +#if defined(USE_IEEE) || defined(_WIN32) +#define SET_POS_INFINITY(x) ( *((GLuint *) &x) = 0x7F800000 ) +#define SET_NEG_INFINITY(x) ( *((GLuint *) &x) = 0xFF800000 ) +#elif defined(VMS) +#define SET_POS_INFINITY(x) x = __MAXFLOAT +#define SET_NEG_INFINITY(x) x = -__MAXFLOAT +#else +#define SET_POS_INFINITY(x) x = (GLfloat) HUGE_VAL +#define SET_NEG_INFINITY(x) x = (GLfloat) -HUGE_VAL +#endif + +#define SET_FLOAT_BITS(x, bits) ((fi_type *) &(x))->i = bits + + +/** + * Execute the given vertex program + */ +void +_mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program) +{ + struct vertex_program_state *state = &ctx->VertexProgram; + const struct vp_instruction *inst; + + ctx->_CurrentProgram = GL_VERTEX_PROGRAM_ARB; /* or NV, doesn't matter */ + + /* If the program is position invariant, multiply the input + * position and the MVP matrix and stick it into the output pos slot + */ + if (ctx->VertexProgram.Current->IsPositionInvariant) { + TRANSFORM_POINT( ctx->VertexProgram.Outputs[0], + ctx->_ModelProjectMatrix.m, + ctx->VertexProgram.Inputs[0]); + + /* XXX: This could go elsewhere */ + ctx->VertexProgram.Current->OutputsWritten |= 0x1; + } + + for (inst = program->Instructions; /*inst->Opcode != VP_OPCODE_END*/; inst++) { + + if (ctx->VertexProgram.CallbackEnabled && + ctx->VertexProgram.Callback) { + ctx->VertexProgram.CurrentPosition = inst->StringPos; + ctx->VertexProgram.Callback(program->Base.Target, + ctx->VertexProgram.CallbackData); + } + + switch (inst->Opcode) { + case VP_OPCODE_MOV: + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_LIT: + { + const GLfloat epsilon = 1.0e-5F; /* XXX fix? */ + GLfloat t[4], lit[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + if (t[3] < -(128.0F - epsilon)) + t[3] = - (128.0F - epsilon); + else if (t[3] > 128.0F - epsilon) + t[3] = 128.0F - epsilon; + if (t[0] < 0.0) + t[0] = 0.0; + if (t[1] < 0.0) + t[1] = 0.0; + lit[0] = 1.0; + lit[1] = t[0]; + lit[2] = (t[0] > 0.0) ? (GLfloat) exp(t[3] * log(t[1])) : 0.0F; + lit[3] = 1.0; + store_vector4( &inst->DstReg, state, lit ); + } + break; + case VP_OPCODE_RCP: + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], state, t ); + if (t[0] != 1.0F) + t[0] = 1.0F / t[0]; /* div by zero is infinity! */ + t[1] = t[2] = t[3] = t[0]; + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_RSQ: + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], state, t ); + t[0] = INV_SQRTF(FABSF(t[0])); + t[1] = t[2] = t[3] = t[0]; + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_EXP: + { + GLfloat t[4], q[4], floor_t0; + fetch_vector1( &inst->SrcReg[0], state, t ); + floor_t0 = (float) floor(t[0]); + if (floor_t0 > FLT_MAX_EXP) { + SET_POS_INFINITY(q[0]); + SET_POS_INFINITY(q[2]); + } + else if (floor_t0 < FLT_MIN_EXP) { + q[0] = 0.0F; + q[2] = 0.0F; + } + else { +#ifdef USE_IEEE + GLint ii = (GLint) floor_t0; + ii = (ii < 23) + 0x3f800000; + SET_FLOAT_BITS(q[0], ii); + q[0] = *((GLfloat *) &ii); +#else + q[0] = (GLfloat) pow(2.0, floor_t0); +#endif + q[2] = (GLfloat) (q[0] * LOG2(q[1])); + } + q[1] = t[0] - floor_t0; + q[3] = 1.0F; + store_vector4( &inst->DstReg, state, q ); + } + break; + case VP_OPCODE_LOG: + { + GLfloat t[4], q[4], abs_t0; + fetch_vector1( &inst->SrcReg[0], state, t ); + abs_t0 = (GLfloat) fabs(t[0]); + if (abs_t0 != 0.0F) { + /* Since we really can't handle infinite values on VMS + * like other OSes we'll use __MAXFLOAT to represent + * infinity. This may need some tweaking. + */ +#ifdef VMS + if (abs_t0 == __MAXFLOAT) +#else + if (IS_INF_OR_NAN(abs_t0)) +#endif + { + SET_POS_INFINITY(q[0]); + q[1] = 1.0F; + SET_POS_INFINITY(q[2]); + } + else { + int exponent; + double mantissa = frexp(t[0], &exponent); + q[0] = (GLfloat) (exponent - 1); + q[1] = (GLfloat) (2.0 * mantissa); /* map [.5, 1) -> [1, 2) */ + q[2] = (GLfloat) (q[0] + LOG2(q[1])); + } + } + else { + SET_NEG_INFINITY(q[0]); + q[1] = 1.0F; + SET_NEG_INFINITY(q[2]); + } + q[3] = 1.0; + store_vector4( &inst->DstReg, state, q ); + } + break; + case VP_OPCODE_MUL: + { + GLfloat t[4], u[4], prod[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + prod[0] = t[0] * u[0]; + prod[1] = t[1] * u[1]; + prod[2] = t[2] * u[2]; + prod[3] = t[3] * u[3]; + store_vector4( &inst->DstReg, state, prod ); + } + break; + case VP_OPCODE_ADD: + { + GLfloat t[4], u[4], sum[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + sum[0] = t[0] + u[0]; + sum[1] = t[1] + u[1]; + sum[2] = t[2] + u[2]; + sum[3] = t[3] + u[3]; + store_vector4( &inst->DstReg, state, sum ); + } + break; + case VP_OPCODE_DP3: + { + GLfloat t[4], u[4], dot[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2]; + dot[1] = dot[2] = dot[3] = dot[0]; + store_vector4( &inst->DstReg, state, dot ); + } + break; + case VP_OPCODE_DP4: + { + GLfloat t[4], u[4], dot[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + t[3] * u[3]; + dot[1] = dot[2] = dot[3] = dot[0]; + store_vector4( &inst->DstReg, state, dot ); + } + break; + case VP_OPCODE_DST: + { + GLfloat t[4], u[4], dst[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + dst[0] = 1.0F; + dst[1] = t[1] * u[1]; + dst[2] = t[2]; + dst[3] = u[3]; + store_vector4( &inst->DstReg, state, dst ); + } + break; + case VP_OPCODE_MIN: + { + GLfloat t[4], u[4], min[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + min[0] = (t[0] < u[0]) ? t[0] : u[0]; + min[1] = (t[1] < u[1]) ? t[1] : u[1]; + min[2] = (t[2] < u[2]) ? t[2] : u[2]; + min[3] = (t[3] < u[3]) ? t[3] : u[3]; + store_vector4( &inst->DstReg, state, min ); + } + break; + case VP_OPCODE_MAX: + { + GLfloat t[4], u[4], max[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + max[0] = (t[0] > u[0]) ? t[0] : u[0]; + max[1] = (t[1] > u[1]) ? t[1] : u[1]; + max[2] = (t[2] > u[2]) ? t[2] : u[2]; + max[3] = (t[3] > u[3]) ? t[3] : u[3]; + store_vector4( &inst->DstReg, state, max ); + } + break; + case VP_OPCODE_SLT: + { + GLfloat t[4], u[4], slt[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + slt[0] = (t[0] < u[0]) ? 1.0F : 0.0F; + slt[1] = (t[1] < u[1]) ? 1.0F : 0.0F; + slt[2] = (t[2] < u[2]) ? 1.0F : 0.0F; + slt[3] = (t[3] < u[3]) ? 1.0F : 0.0F; + store_vector4( &inst->DstReg, state, slt ); + } + break; + case VP_OPCODE_SGE: + { + GLfloat t[4], u[4], sge[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + sge[0] = (t[0] >= u[0]) ? 1.0F : 0.0F; + sge[1] = (t[1] >= u[1]) ? 1.0F : 0.0F; + sge[2] = (t[2] >= u[2]) ? 1.0F : 0.0F; + sge[3] = (t[3] >= u[3]) ? 1.0F : 0.0F; + store_vector4( &inst->DstReg, state, sge ); + } + break; + case VP_OPCODE_MAD: + { + GLfloat t[4], u[4], v[4], sum[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + fetch_vector4( &inst->SrcReg[2], state, v ); + sum[0] = t[0] * u[0] + v[0]; + sum[1] = t[1] * u[1] + v[1]; + sum[2] = t[2] * u[2] + v[2]; + sum[3] = t[3] * u[3] + v[3]; + store_vector4( &inst->DstReg, state, sum ); + } + break; + case VP_OPCODE_ARL: + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + state->AddressReg[0] = (GLint) floor(t[0]); + } + break; + case VP_OPCODE_DPH: + { + GLfloat t[4], u[4], dot[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + dot[0] = t[0] * u[0] + t[1] * u[1] + t[2] * u[2] + u[3]; + dot[1] = dot[2] = dot[3] = dot[0]; + store_vector4( &inst->DstReg, state, dot ); + } + break; + case VP_OPCODE_RCC: + { + GLfloat t[4], u; + fetch_vector1( &inst->SrcReg[0], state, t ); + if (t[0] == 1.0F) + u = 1.0F; + else + u = 1.0F / t[0]; + if (u > 0.0F) { + if (u > 1.884467e+019F) { + u = 1.884467e+019F; /* IEEE 32-bit binary value 0x5F800000 */ + } + else if (u < 5.42101e-020F) { + u = 5.42101e-020F; /* IEEE 32-bit binary value 0x1F800000 */ + } + } + else { + if (u < -1.884467e+019F) { + u = -1.884467e+019F; /* IEEE 32-bit binary value 0xDF800000 */ + } + else if (u > -5.42101e-020F) { + u = -5.42101e-020F; /* IEEE 32-bit binary value 0x9F800000 */ + } + } + t[0] = t[1] = t[2] = t[3] = u; + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_SUB: /* GL_NV_vertex_program1_1 */ + { + GLfloat t[4], u[4], sum[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + sum[0] = t[0] - u[0]; + sum[1] = t[1] - u[1]; + sum[2] = t[2] - u[2]; + sum[3] = t[3] - u[3]; + store_vector4( &inst->DstReg, state, sum ); + } + break; + case VP_OPCODE_ABS: /* GL_NV_vertex_program1_1 */ + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + if (t[0] < 0.0) t[0] = -t[0]; + if (t[1] < 0.0) t[1] = -t[1]; + if (t[2] < 0.0) t[2] = -t[2]; + if (t[3] < 0.0) t[3] = -t[3]; + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_FLR: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + t[0] = FLOORF(t[0]); + t[1] = FLOORF(t[1]); + t[2] = FLOORF(t[2]); + t[3] = FLOORF(t[3]); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_FRC: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + t[0] = t[0] - FLOORF(t[0]); + t[1] = t[1] - FLOORF(t[1]); + t[2] = t[2] - FLOORF(t[2]); + t[3] = t[3] - FLOORF(t[3]); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_EX2: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], state, t ); + t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(2.0, t[0]); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_LG2: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], state, t ); + t[0] = t[1] = t[2] = t[3] = LOG2(t[0]); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_POW: /* GL_ARB_vertex_program */ + { + GLfloat t[4], u[4]; + fetch_vector1( &inst->SrcReg[0], state, t ); + fetch_vector1( &inst->SrcReg[1], state, u ); + t[0] = t[1] = t[2] = t[3] = (GLfloat)_mesa_pow(t[0], u[0]); + store_vector4( &inst->DstReg, state, t ); + } + break; + case VP_OPCODE_XPD: /* GL_ARB_vertex_program */ + { + GLfloat t[4], u[4], cross[4]; + fetch_vector4( &inst->SrcReg[0], state, t ); + fetch_vector4( &inst->SrcReg[1], state, u ); + cross[0] = t[1] * u[2] - t[2] * u[1]; + cross[1] = t[2] * u[0] - t[0] * u[2]; + cross[2] = t[0] * u[1] - t[1] * u[0]; + store_vector4( &inst->DstReg, state, cross ); + } + break; + case VP_OPCODE_SWZ: /* GL_ARB_vertex_program */ + { + const struct vp_src_register *source = &inst->SrcReg[0]; + const GLfloat *src = get_register_pointer(source, state); + GLfloat result[4]; + GLuint i; + + /* do extended swizzling here */ + for (i = 0; i < 3; i++) { + if (source->Swizzle[i] == SWIZZLE_ZERO) + result[i] = 0.0; + else if (source->Swizzle[i] == SWIZZLE_ONE) + result[i] = -1.0; + else + result[i] = -src[source->Swizzle[i]]; + if (source->Negate) + result[i] = -result[i]; + } + store_vector4( &inst->DstReg, state, result ); + } + break; + + case VP_OPCODE_END: + ctx->_CurrentProgram = 0; + return; + default: + /* bad instruction opcode */ + _mesa_problem(ctx, "Bad VP Opcode in _mesa_exec_vertex_program"); + ctx->_CurrentProgram = 0; + return; + } /* switch */ + } /* for */ + + ctx->_CurrentProgram = 0; +} + + + +/** +Thoughts on vertex program optimization: + +The obvious thing to do is to compile the vertex program into X86/SSE/3DNow! +assembly code. That will probably be a lot of work. + +Another approach might be to replace the vp_instruction->Opcode field with +a pointer to a specialized C function which executes the instruction. +In particular we can write functions which skip swizzling, negating, +masking, relative addressing, etc. when they're not needed. + +For example: + +void simple_add( struct vp_instruction *inst ) +{ + GLfloat *sum = machine->Registers[inst->DstReg.Register]; + GLfloat *a = machine->Registers[inst->SrcReg[0].Register]; + GLfloat *b = machine->Registers[inst->SrcReg[1].Register]; + sum[0] = a[0] + b[0]; + sum[1] = a[1] + b[1]; + sum[2] = a[2] + b[2]; + sum[3] = a[3] + b[3]; +} + +*/ + +/* + +KW: + +A first step would be to 'vectorize' the programs in the same way as +the normal transformation code in the tnl module. Thus each opcode +takes zero or more input vectors (registers) and produces one or more +output vectors. + +These operations would intially be coded in C, with machine-specific +assembly following, as is currently the case for matrix +transformations in the math/ directory. The preprocessing scheme for +selecting simpler operations Brian describes above would also work +here. + +This should give reasonable performance without excessive effort. + +*/ diff --git a/src/mesa/shader/nvvertexec.h b/src/mesa/shader/nvvertexec.h new file mode 100644 index 00000000000..0e4b60ec9e7 --- /dev/null +++ b/src/mesa/shader/nvvertexec.h @@ -0,0 +1,43 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + */ + +#ifndef NVVERTEXEC_H +#define NVVERTEXEC_H + +extern void +_mesa_init_vp_registers(GLcontext *ctx); + +extern void +_mesa_init_tracked_matrices(GLcontext *ctx); + +extern void +_mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program); + +extern void +_mesa_dump_vp_state( const struct vertex_program_state *state ); + +#endif diff --git a/src/mesa/shader/nvvertparse.c b/src/mesa/shader/nvvertparse.c new file mode 100644 index 00000000000..bacf5a5af3b --- /dev/null +++ b/src/mesa/shader/nvvertparse.c @@ -0,0 +1,1496 @@ +/* + * Mesa 3-D graphics library + * Version: 6.0.1 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file nvvertparse.c + * NVIDIA vertex program parser. + * \author Brian Paul + */ + +/* + * Regarding GL_NV_vertex_program, GL_NV_vertex_program1_1: + * + * Portions of this software may use or implement intellectual + * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims + * any and all warranties with respect to such intellectual property, + * including any use thereof or modifications thereto. + */ + +#include "glheader.h" +#include "context.h" +#include "hash.h" +#include "imports.h" +#include "macros.h" +#include "mtypes.h" +#include "nvprogram.h" +#include "nvvertparse.h" +#include "nvvertprog.h" +#include "program.h" + + +/** + * Current parsing state. This structure is passed among the parsing + * functions and keeps track of the current parser position and various + * program attributes. + */ +struct parse_state { + GLcontext *ctx; + const GLubyte *start; + const GLubyte *pos; + const GLubyte *curLine; + GLboolean isStateProgram; + GLboolean isPositionInvariant; + GLboolean isVersion1_1; + GLuint inputsRead; + GLuint outputsWritten; + GLboolean anyProgRegsWritten; + GLuint numInst; /* number of instructions parsed */ +}; + + +/* + * Called whenever we find an error during parsing. + */ +static void +record_error(struct parse_state *parseState, const char *msg, int lineNo) +{ +#ifdef DEBUG + GLint line, column; + const GLubyte *lineStr; + lineStr = _mesa_find_line_column(parseState->start, + parseState->pos, &line, &column); + _mesa_debug(parseState->ctx, + "nvfragparse.c(%d): line %d, column %d:%s (%s)\n", + lineNo, line, column, (char *) lineStr, msg); + _mesa_free((void *) lineStr); +#else + (void) lineNo; +#endif + + /* Check that no error was already recorded. Only record the first one. */ + if (parseState->ctx->Program.ErrorString[0] == 0) { + _mesa_set_program_error(parseState->ctx, + parseState->pos - parseState->start, + msg); + } +} + + +#define RETURN_ERROR \ +do { \ + record_error(parseState, "Unexpected end of input.", __LINE__); \ + return GL_FALSE; \ +} while(0) + +#define RETURN_ERROR1(msg) \ +do { \ + record_error(parseState, msg, __LINE__); \ + return GL_FALSE; \ +} while(0) + +#define RETURN_ERROR2(msg1, msg2) \ +do { \ + char err[1000]; \ + _mesa_sprintf(err, "%s %s", msg1, msg2); \ + record_error(parseState, err, __LINE__); \ + return GL_FALSE; \ +} while(0) + + + + + +static GLboolean IsLetter(GLubyte b) +{ + return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z'); +} + + +static GLboolean IsDigit(GLubyte b) +{ + return b >= '0' && b <= '9'; +} + + +static GLboolean IsWhitespace(GLubyte b) +{ + return b == ' ' || b == '\t' || b == '\n' || b == '\r'; +} + + +/** + * Starting at 'str' find the next token. A token can be an integer, + * an identifier or punctuation symbol. + * \return <= 0 we found an error, else, return number of characters parsed. + */ +static GLint +GetToken(struct parse_state *parseState, GLubyte *token) +{ + const GLubyte *str = parseState->pos; + GLint i = 0, j = 0; + + token[0] = 0; + + /* skip whitespace and comments */ + while (str[i] && (IsWhitespace(str[i]) || str[i] == '#')) { + if (str[i] == '#') { + /* skip comment */ + while (str[i] && (str[i] != '\n' && str[i] != '\r')) { + i++; + } + if (str[i] == '\n' || str[i] == '\r') + parseState->curLine = str + i + 1; + } + else { + /* skip whitespace */ + if (str[i] == '\n' || str[i] == '\r') + parseState->curLine = str + i + 1; + i++; + } + } + + if (str[i] == 0) + return -i; + + /* try matching an integer */ + while (str[i] && IsDigit(str[i])) { + token[j++] = str[i++]; + } + if (j > 0 || !str[i]) { + token[j] = 0; + return i; + } + + /* try matching an identifier */ + if (IsLetter(str[i])) { + while (str[i] && (IsLetter(str[i]) || IsDigit(str[i]))) { + token[j++] = str[i++]; + } + token[j] = 0; + return i; + } + + /* punctuation character */ + if (str[i]) { + token[0] = str[i++]; + token[1] = 0; + return i; + } + + /* end of input */ + token[0] = 0; + return i; +} + + +/** + * Get next token from input stream and increment stream pointer past token. + */ +static GLboolean +Parse_Token(struct parse_state *parseState, GLubyte *token) +{ + GLint i; + i = GetToken(parseState, token); + if (i <= 0) { + parseState->pos += (-i); + return GL_FALSE; + } + parseState->pos += i; + return GL_TRUE; +} + + +/** + * Get next token from input stream but don't increment stream pointer. + */ +static GLboolean +Peek_Token(struct parse_state *parseState, GLubyte *token) +{ + GLint i, len; + i = GetToken(parseState, token); + if (i <= 0) { + parseState->pos += (-i); + return GL_FALSE; + } + len = _mesa_strlen((const char *) token); + parseState->pos += (i - len); + return GL_TRUE; +} + + +/** + * Try to match 'pattern' as the next token after any whitespace/comments. + * Advance the current parsing position only if we match the pattern. + * \return GL_TRUE if pattern is matched, GL_FALSE otherwise. + */ +static GLboolean +Parse_String(struct parse_state *parseState, const char *pattern) +{ + const GLubyte *m; + GLint i; + + /* skip whitespace and comments */ + while (IsWhitespace(*parseState->pos) || *parseState->pos == '#') { + if (*parseState->pos == '#') { + while (*parseState->pos && (*parseState->pos != '\n' && *parseState->pos != '\r')) { + parseState->pos += 1; + } + if (*parseState->pos == '\n' || *parseState->pos == '\r') + parseState->curLine = parseState->pos + 1; + } + else { + /* skip whitespace */ + if (*parseState->pos == '\n' || *parseState->pos == '\r') + parseState->curLine = parseState->pos + 1; + parseState->pos += 1; + } + } + + /* Try to match the pattern */ + m = parseState->pos; + for (i = 0; pattern[i]; i++) { + if (*m != (GLubyte) pattern[i]) + return GL_FALSE; + m += 1; + } + parseState->pos = m; + + return GL_TRUE; /* success */ +} + + +/**********************************************************************/ + +static const char *InputRegisters[MAX_NV_VERTEX_PROGRAM_INPUTS + 1] = { + "OPOS", "WGHT", "NRML", "COL0", "COL1", "FOGC", "6", "7", + "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL +}; + +static const char *OutputRegisters[MAX_NV_VERTEX_PROGRAM_OUTPUTS + 1] = { + "HPOS", "COL0", "COL1", "BFC0", "BFC1", "FOGC", "PSIZ", + "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL +}; + +/* NOTE: the order here must match opcodes in nvvertprog.h */ +static const char *Opcodes[] = { + "MOV", "LIT", "RCP", "RSQ", "EXP", "LOG", "MUL", "ADD", "DP3", "DP4", + "DST", "MIN", "MAX", "SLT", "SGE", "MAD", "ARL", "DPH", "RCC", "SUB", + "ABS", "END", + /* GL_ARB_vertex_program */ + "FLR", "FRC", "EX2", "LG2", "POW", "XPD", "SWZ", + NULL +}; + + + +/** + * Parse a temporary register: Rnn + */ +static GLboolean +Parse_TempReg(struct parse_state *parseState, GLint *tempRegNum) +{ + GLubyte token[100]; + + /* Should be 'R##' */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + if (token[0] != 'R') + RETURN_ERROR1("Expected R##"); + + if (IsDigit(token[1])) { + GLint reg = _mesa_atoi((char *) (token + 1)); + if (reg >= MAX_NV_VERTEX_PROGRAM_TEMPS) + RETURN_ERROR1("Bad temporary register name"); + *tempRegNum = reg; + } + else { + RETURN_ERROR1("Bad temporary register name"); + } + + return GL_TRUE; +} + + +/** + * Parse address register "A0.x" + */ +static GLboolean +Parse_AddrReg(struct parse_state *parseState) +{ + /* match 'A0' */ + if (!Parse_String(parseState, "A0")) + RETURN_ERROR; + + /* match '.' */ + if (!Parse_String(parseState, ".")) + RETURN_ERROR; + + /* match 'x' */ + if (!Parse_String(parseState, "x")) + RETURN_ERROR; + + return GL_TRUE; +} + + +/** + * Parse absolute program parameter register "c[##]" + */ +static GLboolean +Parse_AbsParamReg(struct parse_state *parseState, GLint *regNum) +{ + GLubyte token[100]; + + if (!Parse_String(parseState, "c")) + RETURN_ERROR; + + if (!Parse_String(parseState, "[")) + RETURN_ERROR; + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (IsDigit(token[0])) { + /* a numbered program parameter register */ + GLint reg = _mesa_atoi((char *) token); + if (reg >= MAX_NV_VERTEX_PROGRAM_PARAMS) + RETURN_ERROR1("Bad program parameter number"); + *regNum = reg; + } + else { + RETURN_ERROR; + } + + if (!Parse_String(parseState, "]")) + RETURN_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_ParamReg(struct parse_state *parseState, struct vp_src_register *srcReg) +{ + GLubyte token[100]; + + if (!Parse_String(parseState, "c")) + RETURN_ERROR; + + if (!Parse_String(parseState, "[")) + RETURN_ERROR; + + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + if (IsDigit(token[0])) { + /* a numbered program parameter register */ + GLint reg; + (void) Parse_Token(parseState, token); + reg = _mesa_atoi((char *) token); + if (reg >= MAX_NV_VERTEX_PROGRAM_PARAMS) + RETURN_ERROR1("Bad program parameter number"); + srcReg->File = PROGRAM_ENV_PARAM; + srcReg->Index = reg; + } + else if (_mesa_strcmp((const char *) token, "A0") == 0) { + /* address register "A0.x" */ + if (!Parse_AddrReg(parseState)) + RETURN_ERROR; + + srcReg->RelAddr = GL_TRUE; + srcReg->File = PROGRAM_ENV_PARAM; + /* Look for +/-N offset */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + if (token[0] == '-' || token[0] == '+') { + const GLubyte sign = token[0]; + (void) Parse_Token(parseState, token); /* consume +/- */ + + /* an integer should be next */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (IsDigit(token[0])) { + const GLint k = _mesa_atoi((char *) token); + if (sign == '-') { + if (k > 64) + RETURN_ERROR1("Bad address offset"); + srcReg->Index = -k; + } + else { + if (k > 63) + RETURN_ERROR1("Bad address offset"); + srcReg->Index = k; + } + } + else { + RETURN_ERROR; + } + } + else { + /* probably got a ']', catch it below */ + } + } + else { + RETURN_ERROR; + } + + /* Match closing ']' */ + if (!Parse_String(parseState, "]")) + RETURN_ERROR; + + return GL_TRUE; +} + + +/** + * Parse v[#] or v[<name>] + */ +static GLboolean +Parse_AttribReg(struct parse_state *parseState, GLint *tempRegNum) +{ + GLubyte token[100]; + GLint j; + + /* Match 'v' */ + if (!Parse_String(parseState, "v")) + RETURN_ERROR; + + /* Match '[' */ + if (!Parse_String(parseState, "[")) + RETURN_ERROR; + + /* match number or named register */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (parseState->isStateProgram && token[0] != '0') + RETURN_ERROR1("Only v[0] accessible in vertex state programs"); + + if (IsDigit(token[0])) { + GLint reg = _mesa_atoi((char *) token); + if (reg >= MAX_NV_VERTEX_PROGRAM_INPUTS) + RETURN_ERROR1("Bad vertex attribute register name"); + *tempRegNum = reg; + } + else { + for (j = 0; InputRegisters[j]; j++) { + if (_mesa_strcmp((const char *) token, InputRegisters[j]) == 0) { + *tempRegNum = j; + break; + } + } + if (!InputRegisters[j]) { + /* unknown input register label */ + RETURN_ERROR2("Bad register name", token); + } + } + + /* Match '[' */ + if (!Parse_String(parseState, "]")) + RETURN_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_OutputReg(struct parse_state *parseState, GLint *outputRegNum) +{ + GLubyte token[100]; + GLint start, j; + + /* Match 'o' */ + if (!Parse_String(parseState, "o")) + RETURN_ERROR; + + /* Match '[' */ + if (!Parse_String(parseState, "[")) + RETURN_ERROR; + + /* Get output reg name */ + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (parseState->isPositionInvariant) + start = 1; /* skip HPOS register name */ + else + start = 0; + + /* try to match an output register name */ + for (j = start; OutputRegisters[j]; j++) { + if (_mesa_strcmp((const char *) token, OutputRegisters[j]) == 0) { + *outputRegNum = j; + break; + } + } + if (!OutputRegisters[j]) + RETURN_ERROR1("Unrecognized output register name"); + + /* Match ']' */ + if (!Parse_String(parseState, "]")) + RETURN_ERROR1("Expected ]"); + + return GL_TRUE; +} + + +static GLboolean +Parse_MaskedDstReg(struct parse_state *parseState, struct vp_dst_register *dstReg) +{ + GLubyte token[100]; + + /* Dst reg can be R<n> or o[n] */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + if (token[0] == 'R') { + /* a temporary register */ + dstReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else if (!parseState->isStateProgram && token[0] == 'o') { + /* an output register */ + dstReg->File = PROGRAM_OUTPUT; + if (!Parse_OutputReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else if (parseState->isStateProgram && token[0] == 'c' && + parseState->isStateProgram) { + /* absolute program parameter register */ + /* Only valid for vertex state programs */ + dstReg->File = PROGRAM_ENV_PARAM; + if (!Parse_AbsParamReg(parseState, &dstReg->Index)) + RETURN_ERROR; + } + else { + RETURN_ERROR1("Bad destination register name"); + } + + /* Parse optional write mask */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + + if (token[0] == '.') { + /* got a mask */ + GLint k = 0; + + if (!Parse_String(parseState, ".")) + RETURN_ERROR; + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + dstReg->WriteMask[0] = GL_FALSE; + dstReg->WriteMask[1] = GL_FALSE; + dstReg->WriteMask[2] = GL_FALSE; + dstReg->WriteMask[3] = GL_FALSE; + + if (token[k] == 'x') { + dstReg->WriteMask[0] = GL_TRUE; + k++; + } + if (token[k] == 'y') { + dstReg->WriteMask[1] = GL_TRUE; + k++; + } + if (token[k] == 'z') { + dstReg->WriteMask[2] = GL_TRUE; + k++; + } + if (token[k] == 'w') { + dstReg->WriteMask[3] = GL_TRUE; + k++; + } + if (k == 0) { + RETURN_ERROR1("Bad writemask character"); + } + return GL_TRUE; + } + else { + dstReg->WriteMask[0] = GL_TRUE; + dstReg->WriteMask[1] = GL_TRUE; + dstReg->WriteMask[2] = GL_TRUE; + dstReg->WriteMask[3] = GL_TRUE; + return GL_TRUE; + } +} + + +static GLboolean +Parse_SwizzleSrcReg(struct parse_state *parseState, struct vp_src_register *srcReg) +{ + GLubyte token[100]; + + srcReg->RelAddr = GL_FALSE; + + /* check for '-' */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + if (token[0] == '-') { + (void) Parse_String(parseState, "-"); + srcReg->Negate = GL_TRUE; + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + } + else { + srcReg->Negate = GL_FALSE; + } + + /* Src reg can be R<n>, c[n], c[n +/- offset], or a named vertex attrib */ + if (token[0] == 'R') { + srcReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'c') { + if (!Parse_ParamReg(parseState, srcReg)) + RETURN_ERROR; + } + else if (token[0] == 'v') { + srcReg->File = PROGRAM_INPUT; + if (!Parse_AttribReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else { + RETURN_ERROR2("Bad source register name", token); + } + + /* init swizzle fields */ + srcReg->Swizzle[0] = 0; + srcReg->Swizzle[1] = 1; + srcReg->Swizzle[2] = 2; + srcReg->Swizzle[3] = 3; + + /* Look for optional swizzle suffix */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + if (token[0] == '.') { + (void) Parse_String(parseState, "."); /* consume . */ + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (token[1] == 0) { + /* single letter swizzle */ + if (token[0] == 'x') + ASSIGN_4V(srcReg->Swizzle, 0, 0, 0, 0); + else if (token[0] == 'y') + ASSIGN_4V(srcReg->Swizzle, 1, 1, 1, 1); + else if (token[0] == 'z') + ASSIGN_4V(srcReg->Swizzle, 2, 2, 2, 2); + else if (token[0] == 'w') + ASSIGN_4V(srcReg->Swizzle, 3, 3, 3, 3); + else + RETURN_ERROR1("Expected x, y, z, or w"); + } + else { + /* 2, 3 or 4-component swizzle */ + GLint k; + for (k = 0; token[k] && k < 5; k++) { + if (token[k] == 'x') + srcReg->Swizzle[k] = 0; + else if (token[k] == 'y') + srcReg->Swizzle[k] = 1; + else if (token[k] == 'z') + srcReg->Swizzle[k] = 2; + else if (token[k] == 'w') + srcReg->Swizzle[k] = 3; + else + RETURN_ERROR; + } + if (k >= 5) + RETURN_ERROR; + } + } + + return GL_TRUE; +} + + +static GLboolean +Parse_ScalarSrcReg(struct parse_state *parseState, struct vp_src_register *srcReg) +{ + GLubyte token[100]; + + srcReg->RelAddr = GL_FALSE; + + /* check for '-' */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + if (token[0] == '-') { + srcReg->Negate = GL_TRUE; + (void) Parse_String(parseState, "-"); /* consume '-' */ + if (!Peek_Token(parseState, token)) + RETURN_ERROR; + } + else { + srcReg->Negate = GL_FALSE; + } + + /* Src reg can be R<n>, c[n], c[n +/- offset], or a named vertex attrib */ + if (token[0] == 'R') { + srcReg->File = PROGRAM_TEMPORARY; + if (!Parse_TempReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else if (token[0] == 'c') { + if (!Parse_ParamReg(parseState, srcReg)) + RETURN_ERROR; + } + else if (token[0] == 'v') { + srcReg->File = PROGRAM_INPUT; + if (!Parse_AttribReg(parseState, &srcReg->Index)) + RETURN_ERROR; + } + else { + RETURN_ERROR2("Bad source register name", token); + } + + /* Look for .[xyzw] suffix */ + if (!Parse_String(parseState, ".")) + RETURN_ERROR; + + if (!Parse_Token(parseState, token)) + RETURN_ERROR; + + if (token[0] == 'x' && token[1] == 0) { + srcReg->Swizzle[0] = 0; + } + else if (token[0] == 'y' && token[1] == 0) { + srcReg->Swizzle[0] = 1; + } + else if (token[0] == 'z' && token[1] == 0) { + srcReg->Swizzle[0] = 2; + } + else if (token[0] == 'w' && token[1] == 0) { + srcReg->Swizzle[0] = 3; + } + else { + RETURN_ERROR1("Bad scalar source suffix"); + } + srcReg->Swizzle[1] = srcReg->Swizzle[2] = srcReg->Swizzle[3] = 0; + + return GL_TRUE; +} + + +static GLint +Parse_UnaryOpInstruction(struct parse_state *parseState, + struct vp_instruction *inst, enum vp_opcode opcode) +{ + if (opcode == VP_OPCODE_ABS && !parseState->isVersion1_1) + RETURN_ERROR1("ABS illegal for vertex program 1.0"); + + inst->Opcode = opcode; + inst->StringPos = parseState->curLine - parseState->start; + + /* dest reg */ + if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + + /* semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_BiOpInstruction(struct parse_state *parseState, + struct vp_instruction *inst, enum vp_opcode opcode) +{ + if (opcode == VP_OPCODE_DPH && !parseState->isVersion1_1) + RETURN_ERROR1("DPH illegal for vertex program 1.0"); + if (opcode == VP_OPCODE_SUB && !parseState->isVersion1_1) + RETURN_ERROR1("SUB illegal for vertex program 1.0"); + + inst->Opcode = opcode; + inst->StringPos = parseState->curLine - parseState->start; + + /* dest reg */ + if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* first src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* second src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + + /* semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR; + + /* make sure we don't reference more than one program parameter register */ + if (inst->SrcReg[0].File == PROGRAM_ENV_PARAM && + inst->SrcReg[1].File == PROGRAM_ENV_PARAM && + inst->SrcReg[0].Index != inst->SrcReg[1].Index) + RETURN_ERROR1("Can't reference two program parameter registers"); + + /* make sure we don't reference more than one vertex attribute register */ + if (inst->SrcReg[0].File == PROGRAM_INPUT && + inst->SrcReg[1].File == PROGRAM_INPUT && + inst->SrcReg[0].Index != inst->SrcReg[1].Index) + RETURN_ERROR1("Can't reference two vertex attribute registers"); + + return GL_TRUE; +} + + +static GLboolean +Parse_TriOpInstruction(struct parse_state *parseState, + struct vp_instruction *inst, enum vp_opcode opcode) +{ + inst->Opcode = opcode; + inst->StringPos = parseState->curLine - parseState->start; + + /* dest reg */ + if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* first src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* second src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1])) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* third src arg */ + if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[2])) + RETURN_ERROR; + + /* semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR; + + /* make sure we don't reference more than one program parameter register */ + if ((inst->SrcReg[0].File == PROGRAM_ENV_PARAM && + inst->SrcReg[1].File == PROGRAM_ENV_PARAM && + inst->SrcReg[0].Index != inst->SrcReg[1].Index) || + (inst->SrcReg[0].File == PROGRAM_ENV_PARAM && + inst->SrcReg[2].File == PROGRAM_ENV_PARAM && + inst->SrcReg[0].Index != inst->SrcReg[2].Index) || + (inst->SrcReg[1].File == PROGRAM_ENV_PARAM && + inst->SrcReg[2].File == PROGRAM_ENV_PARAM && + inst->SrcReg[1].Index != inst->SrcReg[2].Index)) + RETURN_ERROR1("Can only reference one program register"); + + /* make sure we don't reference more than one vertex attribute register */ + if ((inst->SrcReg[0].File == PROGRAM_INPUT && + inst->SrcReg[1].File == PROGRAM_INPUT && + inst->SrcReg[0].Index != inst->SrcReg[1].Index) || + (inst->SrcReg[0].File == PROGRAM_INPUT && + inst->SrcReg[2].File == PROGRAM_INPUT && + inst->SrcReg[0].Index != inst->SrcReg[2].Index) || + (inst->SrcReg[1].File == PROGRAM_INPUT && + inst->SrcReg[2].File == PROGRAM_INPUT && + inst->SrcReg[1].Index != inst->SrcReg[2].Index)) + RETURN_ERROR1("Can only reference one input register"); + + return GL_TRUE; +} + + +static GLboolean +Parse_ScalarInstruction(struct parse_state *parseState, + struct vp_instruction *inst, enum vp_opcode opcode) +{ + if (opcode == VP_OPCODE_RCC && !parseState->isVersion1_1) + RETURN_ERROR1("RCC illegal for vertex program 1.0"); + + inst->Opcode = opcode; + inst->StringPos = parseState->curLine - parseState->start; + + /* dest reg */ + if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* first src arg */ + if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + + /* semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_AddressInstruction(struct parse_state *parseState, struct vp_instruction *inst) +{ + inst->Opcode = VP_OPCODE_ARL; + inst->StringPos = parseState->curLine - parseState->start; + + /* dest A0 reg */ + if (!Parse_AddrReg(parseState)) + RETURN_ERROR; + + /* comma */ + if (!Parse_String(parseState, ",")) + RETURN_ERROR; + + /* parse src reg */ + if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) + RETURN_ERROR; + + /* semicolon */ + if (!Parse_String(parseState, ";")) + RETURN_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_EndInstruction(struct parse_state *parseState, struct vp_instruction *inst) +{ + GLubyte token[100]; + + inst->Opcode = VP_OPCODE_END; + inst->StringPos = parseState->curLine - parseState->start; + + /* this should fail! */ + if (Parse_Token(parseState, token)) + RETURN_ERROR2("Unexpected token after END:", token); + else + return GL_TRUE; +} + + +static GLboolean +Parse_OptionSequence(struct parse_state *parseState, + struct vp_instruction program[]) +{ + while (1) { + if (!Parse_String(parseState, "OPTION")) + return GL_TRUE; /* ok, not an OPTION statement */ + if (Parse_String(parseState, "NV_position_invariant")) { + parseState->isPositionInvariant = GL_TRUE; + } + else { + RETURN_ERROR1("unexpected OPTION statement"); + } + if (!Parse_String(parseState, ";")) + return GL_FALSE; + } +} + + +static GLboolean +Parse_InstructionSequence(struct parse_state *parseState, + struct vp_instruction program[]) +{ + while (1) { + struct vp_instruction *inst = program + parseState->numInst; + + /* Initialize the instruction */ + inst->SrcReg[0].File = (enum register_file) -1; + inst->SrcReg[1].File = (enum register_file) -1; + inst->SrcReg[2].File = (enum register_file) -1; + inst->DstReg.File = (enum register_file) -1; + + if (Parse_String(parseState, "MOV")) { + if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_MOV)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "LIT")) { + if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_LIT)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "ABS")) { + if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_ABS)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "MUL")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MUL)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "ADD")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_ADD)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "DP3")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DP3)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "DP4")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DP4)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "DST")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DST)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "MIN")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MIN)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "MAX")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MAX)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "SLT")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SLT)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "SGE")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SGE)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "DPH")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DPH)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "SUB")) { + if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SUB)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "MAD")) { + if (!Parse_TriOpInstruction(parseState, inst, VP_OPCODE_MAD)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "RCP")) { + if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_RCP)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "RSQ")) { + if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_RSQ)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "EXP")) { + if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_EXP)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "LOG")) { + if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_LOG)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "RCC")) { + if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_RCC)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "ARL")) { + if (!Parse_AddressInstruction(parseState, inst)) + RETURN_ERROR; + } + else if (Parse_String(parseState, "END")) { + if (!Parse_EndInstruction(parseState, inst)) + RETURN_ERROR; + else { + parseState->numInst++; + return GL_TRUE; /* all done */ + } + } + else { + /* bad instruction name */ + RETURN_ERROR1("Unexpected token"); + } + + /* examine input/output registers */ + if (inst->DstReg.File == PROGRAM_OUTPUT) + parseState->outputsWritten |= (1 << inst->DstReg.Index); + else if (inst->DstReg.File == PROGRAM_ENV_PARAM) + parseState->anyProgRegsWritten = GL_TRUE; + + if (inst->SrcReg[0].File == PROGRAM_INPUT) + parseState->inputsRead |= (1 << inst->SrcReg[0].Index); + if (inst->SrcReg[1].File == PROGRAM_INPUT) + parseState->inputsRead |= (1 << inst->SrcReg[1].Index); + if (inst->SrcReg[2].File == PROGRAM_INPUT) + parseState->inputsRead |= (1 << inst->SrcReg[2].Index); + + parseState->numInst++; + + if (parseState->numInst >= MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS) + RETURN_ERROR1("Program too long"); + } + + RETURN_ERROR; +} + + +static GLboolean +Parse_Program(struct parse_state *parseState, + struct vp_instruction instBuffer[]) +{ + if (parseState->isVersion1_1) { + if (!Parse_OptionSequence(parseState, instBuffer)) { + return GL_FALSE; + } + } + return Parse_InstructionSequence(parseState, instBuffer); +} + + +/** + * Parse/compile the 'str' returning the compiled 'program'. + * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos + * indicates the position of the error in 'str'. + */ +void +_mesa_parse_nv_vertex_program(GLcontext *ctx, GLenum dstTarget, + const GLubyte *str, GLsizei len, + struct vertex_program *program) +{ + struct parse_state parseState; + struct vp_instruction instBuffer[MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS]; + struct vp_instruction *newInst; + GLenum target; + GLubyte *programString; + + /* Make a null-terminated copy of the program string */ + programString = (GLubyte *) MALLOC(len + 1); + if (!programString) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + MEMCPY(programString, str, len); + programString[len] = 0; + + /* Get ready to parse */ + parseState.ctx = ctx; + parseState.start = programString; + parseState.isPositionInvariant = GL_FALSE; + parseState.isVersion1_1 = GL_FALSE; + parseState.numInst = 0; + parseState.inputsRead = 0; + parseState.outputsWritten = 0; + parseState.anyProgRegsWritten = GL_FALSE; + + /* Reset error state */ + _mesa_set_program_error(ctx, -1, NULL); + + /* check the program header */ + if (_mesa_strncmp((const char *) programString, "!!VP1.0", 7) == 0) { + target = GL_VERTEX_PROGRAM_NV; + parseState.pos = programString + 7; + parseState.isStateProgram = GL_FALSE; + } + else if (_mesa_strncmp((const char *) programString, "!!VP1.1", 7) == 0) { + target = GL_VERTEX_PROGRAM_NV; + parseState.pos = programString + 7; + parseState.isStateProgram = GL_FALSE; + parseState.isVersion1_1 = GL_TRUE; + } + else if (_mesa_strncmp((const char *) programString, "!!VSP1.0", 8) == 0) { + target = GL_VERTEX_STATE_PROGRAM_NV; + parseState.pos = programString + 8; + parseState.isStateProgram = GL_TRUE; + } + else { + /* invalid header */ + ctx->Program.ErrorPos = 0; + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(bad header)"); + return; + } + + /* make sure target and header match */ + if (target != dstTarget) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLoadProgramNV(target mismatch)"); + return; + } + + + if (Parse_Program(&parseState, instBuffer)) { + /* successful parse! */ + + if (parseState.isStateProgram) { + if (!parseState.anyProgRegsWritten) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLoadProgramNV(c[#] not written)"); + return; + } + } + else { + if (!parseState.isPositionInvariant && + !(parseState.outputsWritten & 1)) { + /* bit 1 = HPOS register */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLoadProgramNV(HPOS not written)"); + return; + } + } + + /* copy the compiled instructions */ + assert(parseState.numInst <= MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS); + newInst = (struct vp_instruction *) + MALLOC(parseState.numInst * sizeof(struct vp_instruction)); + if (!newInst) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + FREE(programString); + return; /* out of memory */ + } + MEMCPY(newInst, instBuffer, + parseState.numInst * sizeof(struct vp_instruction)); + + /* install the program */ + program->Base.Target = target; + if (program->Base.String) { + FREE(program->Base.String); + } + program->Base.String = programString; + program->Base.Format = GL_PROGRAM_FORMAT_ASCII_ARB; + if (program->Instructions) { + FREE(program->Instructions); + } + program->Instructions = newInst; + program->InputsRead = parseState.inputsRead; + program->OutputsWritten = parseState.outputsWritten; + program->IsPositionInvariant = parseState.isPositionInvariant; + +#ifdef DEBUG + _mesa_printf("--- glLoadProgramNV result ---\n"); + _mesa_print_nv_vertex_program(program); + _mesa_printf("------------------------------\n"); +#endif + } + else { + /* Error! */ + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV"); + /* NOTE: _mesa_set_program_error would have been called already */ + /* GL_NV_vertex_program isn't supposed to set the error string + * so we reset it here. + */ + _mesa_set_program_error(ctx, ctx->Program.ErrorPos, NULL); + } +} + + +static void +PrintSrcReg(const struct vp_src_register *src) +{ + static const char comps[5] = "xyzw"; + if (src->Negate) + _mesa_printf("-"); + if (src->RelAddr) { + if (src->Index > 0) + _mesa_printf("c[A0.x + %d]", src->Index); + else if (src->Index < 0) + _mesa_printf("c[A0.x - %d]", -src->Index); + else + _mesa_printf("c[A0.x]"); + } + else if (src->File == PROGRAM_OUTPUT) { + _mesa_printf("o[%s]", OutputRegisters[src->Index]); + } + else if (src->File == PROGRAM_INPUT) { + _mesa_printf("v[%s]", InputRegisters[src->Index]); + } + else if (src->File == PROGRAM_ENV_PARAM) { + _mesa_printf("c[%d]", src->Index); + } + else { + ASSERT(src->File == PROGRAM_TEMPORARY); + _mesa_printf("R%d", src->Index); + } + + if (src->Swizzle[0] == src->Swizzle[1] && + src->Swizzle[0] == src->Swizzle[2] && + src->Swizzle[0] == src->Swizzle[3]) { + _mesa_printf(".%c", comps[src->Swizzle[0]]); + } + else if (src->Swizzle[0] != 0 || + src->Swizzle[1] != 1 || + src->Swizzle[2] != 2 || + src->Swizzle[3] != 3) { + _mesa_printf(".%c%c%c%c", + comps[src->Swizzle[0]], + comps[src->Swizzle[1]], + comps[src->Swizzle[2]], + comps[src->Swizzle[3]]); + } +} + + +static void +PrintDstReg(const struct vp_dst_register *dst) +{ + GLint w = dst->WriteMask[0] + dst->WriteMask[1] + + dst->WriteMask[2] + dst->WriteMask[3]; + + if (dst->File == PROGRAM_OUTPUT) { + _mesa_printf("o[%s]", OutputRegisters[dst->Index]); + } + else if (dst->File == PROGRAM_INPUT) { + _mesa_printf("v[%s]", InputRegisters[dst->Index]); + } + else if (dst->File == PROGRAM_ENV_PARAM) { + _mesa_printf("c[%d]", dst->Index); + } + else { + ASSERT(dst->File == PROGRAM_TEMPORARY); + _mesa_printf("R%d", dst->Index); + } + + if (w != 0 && w != 4) { + _mesa_printf("."); + if (dst->WriteMask[0]) + _mesa_printf("x"); + if (dst->WriteMask[1]) + _mesa_printf("y"); + if (dst->WriteMask[2]) + _mesa_printf("z"); + if (dst->WriteMask[3]) + _mesa_printf("w"); + } +} + + +/** + * Print a single NVIDIA vertex program instruction. + */ +void +_mesa_print_nv_vertex_instruction(const struct vp_instruction *inst) +{ + switch (inst->Opcode) { + case VP_OPCODE_MOV: + case VP_OPCODE_LIT: + case VP_OPCODE_RCP: + case VP_OPCODE_RSQ: + case VP_OPCODE_EXP: + case VP_OPCODE_LOG: + case VP_OPCODE_RCC: + case VP_OPCODE_ABS: + _mesa_printf("%s ", Opcodes[(int) inst->Opcode]); + PrintDstReg(&inst->DstReg); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(";\n"); + break; + case VP_OPCODE_MUL: + case VP_OPCODE_ADD: + case VP_OPCODE_DP3: + case VP_OPCODE_DP4: + case VP_OPCODE_DST: + case VP_OPCODE_MIN: + case VP_OPCODE_MAX: + case VP_OPCODE_SLT: + case VP_OPCODE_SGE: + case VP_OPCODE_DPH: + case VP_OPCODE_SUB: + _mesa_printf("%s ", Opcodes[(int) inst->Opcode]); + PrintDstReg(&inst->DstReg); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[1]); + _mesa_printf(";\n"); + break; + case VP_OPCODE_MAD: + _mesa_printf("MAD "); + PrintDstReg(&inst->DstReg); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[1]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[2]); + _mesa_printf(";\n"); + break; + case VP_OPCODE_ARL: + _mesa_printf("ARL A0.x, "); + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(";\n"); + break; + case VP_OPCODE_END: + _mesa_printf("END\n"); + break; + default: + _mesa_printf("BAD INSTRUCTION\n"); + } +} + + +/** + * Print (unparse) the given vertex program. Just for debugging. + */ +void +_mesa_print_nv_vertex_program(const struct vertex_program *program) +{ + const struct vp_instruction *inst; + + for (inst = program->Instructions; ; inst++) { + _mesa_print_nv_vertex_instruction(inst); + if (inst->Opcode == VP_OPCODE_END) + return; + } +} + + +const char * +_mesa_nv_vertex_input_register_name(GLuint i) +{ + ASSERT(i < MAX_NV_VERTEX_PROGRAM_INPUTS); + return InputRegisters[i]; +} + + +const char * +_mesa_nv_vertex_output_register_name(GLuint i) +{ + ASSERT(i < MAX_NV_VERTEX_PROGRAM_OUTPUTS); + return OutputRegisters[i]; +} diff --git a/src/mesa/shader/nvvertparse.h b/src/mesa/shader/nvvertparse.h new file mode 100644 index 00000000000..205885f45c3 --- /dev/null +++ b/src/mesa/shader/nvvertparse.h @@ -0,0 +1,50 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Brian Paul + */ + + +#ifndef NVVERTPARSE_H +#define NVVERTPARSE_H + + +extern void +_mesa_parse_nv_vertex_program(GLcontext *ctx, GLenum target, + const GLubyte *str, GLsizei len, + struct vertex_program *program); + +extern void +_mesa_print_nv_vertex_instruction(const struct vp_instruction *inst); + +extern void +_mesa_print_nv_vertex_program(const struct vertex_program *program); + +extern const char * +_mesa_nv_vertex_input_register_name(GLuint i); + +extern const char * +_mesa_nv_vertex_output_register_name(GLuint i); + +#endif diff --git a/src/mesa/shader/nvvertprog.h b/src/mesa/shader/nvvertprog.h new file mode 100644 index 00000000000..820b3e5692b --- /dev/null +++ b/src/mesa/shader/nvvertprog.h @@ -0,0 +1,107 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* Private vertex program types and constants only used by files + * related to vertex programs. + * + * XXX TO-DO: Rename this file "vertprog.h" since it's not NV-specific. + */ + + +#ifndef NVVERTPROG_H +#define NVVERTPROG_H + + +/* Vertex program opcodes */ +enum vp_opcode +{ + VP_OPCODE_MOV, + VP_OPCODE_LIT, + VP_OPCODE_RCP, + VP_OPCODE_RSQ, + VP_OPCODE_EXP, + VP_OPCODE_LOG, + VP_OPCODE_MUL, + VP_OPCODE_ADD, + VP_OPCODE_DP3, + VP_OPCODE_DP4, + VP_OPCODE_DST, + VP_OPCODE_MIN, + VP_OPCODE_MAX, + VP_OPCODE_SLT, + VP_OPCODE_SGE, + VP_OPCODE_MAD, + VP_OPCODE_ARL, + VP_OPCODE_DPH, + VP_OPCODE_RCC, + VP_OPCODE_SUB, + VP_OPCODE_ABS, + VP_OPCODE_END, + /* Additional opcodes for GL_ARB_vertex_program */ + VP_OPCODE_FLR, + VP_OPCODE_FRC, + VP_OPCODE_EX2, + VP_OPCODE_LG2, + VP_OPCODE_POW, + VP_OPCODE_XPD, + VP_OPCODE_SWZ +}; + + + +/* Instruction source register */ +struct vp_src_register +{ + enum register_file File; /* which register file */ + GLint Index; /* index into register file */ + GLubyte Swizzle[4]; /* Each value is 0,1,2,3 for x,y,z,w or */ + /* SWIZZLE_ZERO or SWIZZLE_ONE for VP_OPCODE_SWZ. */ + GLboolean Negate; + GLboolean RelAddr; +}; + + +/* Instruction destination register */ +struct vp_dst_register +{ + enum register_file File; /* which register file */ + GLint Index; /* index into register file */ + GLboolean WriteMask[4]; +}; + + +/* Vertex program instruction */ +struct vp_instruction +{ + enum vp_opcode Opcode; + struct vp_src_register SrcReg[3]; + struct vp_dst_register DstReg; +#if FEATURE_MESA_program_debug + GLint StringPos; +#endif +}; + + +#endif /* VERTPROG_H */ diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c new file mode 100644 index 00000000000..6c1e3623221 --- /dev/null +++ b/src/mesa/shader/program.c @@ -0,0 +1,1271 @@ +/* + * Mesa 3-D graphics library + * Version: 6.0 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file program.c + * Vertex and fragment program support functions. + * \author Brian Paul + */ + + +#include "glheader.h" +#include "context.h" +#include "hash.h" +#include "imports.h" +#include "macros.h" +#include "mtypes.h" +#include "program.h" +#include "nvfragparse.h" +#include "nvfragprog.h" +#include "nvvertparse.h" + + +/**********************************************************************/ +/* Utility functions */ +/**********************************************************************/ + + +/** + * Init context's program state + */ +void +_mesa_init_program(GLcontext *ctx) +{ + GLuint i; + + ctx->Program.ErrorPos = -1; + ctx->Program.ErrorString = _mesa_strdup(""); + +#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program + ctx->VertexProgram.Enabled = GL_FALSE; + ctx->VertexProgram.PointSizeEnabled = GL_FALSE; + ctx->VertexProgram.TwoSideEnabled = GL_FALSE; + ctx->VertexProgram.Current = NULL; + ctx->VertexProgram.Current = (struct vertex_program *) ctx->Shared->DefaultVertexProgram; + assert(ctx->VertexProgram.Current); + ctx->VertexProgram.Current->Base.RefCount++; + for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { + ctx->VertexProgram.TrackMatrix[i] = GL_NONE; + ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV; + } +#endif + +#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program + ctx->FragmentProgram.Enabled = GL_FALSE; + ctx->FragmentProgram.Current = (struct fragment_program *) ctx->Shared->DefaultFragmentProgram; + assert(ctx->FragmentProgram.Current); + ctx->FragmentProgram.Current->Base.RefCount++; +#endif +} + + +/** + * Set the vertex/fragment program error state (position and error string). + * This is generally called from within the parsers. + */ +void +_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string) +{ + ctx->Program.ErrorPos = pos; + _mesa_free((void *) ctx->Program.ErrorString); + if (!string) + string = ""; + ctx->Program.ErrorString = _mesa_strdup(string); +} + + +/** + * Find the line number and column for 'pos' within 'string'. + * Return a copy of the line which contains 'pos'. Free the line with + * _mesa_free(). + * \param string the program string + * \param pos the position within the string + * \param line returns the line number corresponding to 'pos'. + * \param col returns the column number corresponding to 'pos'. + * \return copy of the line containing 'pos'. + */ +const GLubyte * +_mesa_find_line_column(const GLubyte *string, const GLubyte *pos, + GLint *line, GLint *col) +{ + const GLubyte *lineStart = string; + const GLubyte *p = string; + GLubyte *s; + int len; + + *line = 1; + + while (p != pos) { + if (*p == (GLubyte) '\n') { + (*line)++; + lineStart = p + 1; + } + p++; + } + + *col = (pos - lineStart) + 1; + + /* return copy of this line */ + while (*p != 0 && *p != '\n') + p++; + len = p - lineStart; + s = (GLubyte *) _mesa_malloc(len + 1); + _mesa_memcpy(s, lineStart, len); + s[len] = 0; + + return s; +} + + +static struct program * _mesa_init_program_struct( GLcontext *ctx, + struct program *prog, + GLenum target, GLuint id) +{ + if (prog) { + prog->Id = id; + prog->Target = target; + prog->Resident = GL_TRUE; + prog->RefCount = 1; + } + + return prog; +} + +struct program * _mesa_init_fragment_program( GLcontext *ctx, + struct fragment_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + +struct program * _mesa_init_vertex_program( GLcontext *ctx, + struct vertex_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + + +/** + * Allocate and initialize a new fragment/vertex program object but + * don't put it into the program hash table. Called via + * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a + * device driver function to implement OO deriviation with additional + * types not understood by this function. + * + * \param ctx context + * \param id program id/number + * \param target program target/type + * \return pointer to new program object + */ +struct program * +_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id) +{ + switch (target) { + case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */ + return _mesa_init_vertex_program( ctx, CALLOC_STRUCT(vertex_program), + target, id ); + + case GL_FRAGMENT_PROGRAM_NV: + case GL_FRAGMENT_PROGRAM_ARB: + return _mesa_init_fragment_program( ctx, CALLOC_STRUCT(fragment_program), + target, id ); + + default: + _mesa_problem(ctx, "bad target in _mesa_new_program"); + return NULL; + } +} + + +/** + * Delete a program and remove it from the hash table, ignoring the + * reference count. + * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation) + * by a device driver function. + */ +void +_mesa_delete_program(GLcontext *ctx, struct program *prog) +{ + ASSERT(prog); + + if (prog->String) + _mesa_free(prog->String); + if (prog->Target == GL_VERTEX_PROGRAM_NV || + prog->Target == GL_VERTEX_STATE_PROGRAM_NV) { + struct vertex_program *vprog = (struct vertex_program *) prog; + if (vprog->Instructions) + _mesa_free(vprog->Instructions); + } + else if (prog->Target == GL_FRAGMENT_PROGRAM_NV || + prog->Target == GL_FRAGMENT_PROGRAM_ARB) { + struct fragment_program *fprog = (struct fragment_program *) prog; + if (fprog->Instructions) + _mesa_free(fprog->Instructions); + if (fprog->Parameters) { + _mesa_free_parameter_list(fprog->Parameters); + } + } + _mesa_free(prog); +} + + + +/**********************************************************************/ +/* Program parameter functions */ +/**********************************************************************/ + +struct program_parameter_list * +_mesa_new_parameter_list(void) +{ + return (struct program_parameter_list *) + _mesa_calloc(sizeof(struct program_parameter_list)); +} + + +/** + * Free a parameter list and all its parameters + */ +void +_mesa_free_parameter_list(struct program_parameter_list *paramList) +{ + _mesa_free_parameters(paramList); + _mesa_free(paramList); +} + + +/** + * Free all the parameters in the given list, but don't free the + * paramList structure itself. + */ +void +_mesa_free_parameters(struct program_parameter_list *paramList) +{ + GLuint i; + for (i = 0; i < paramList->NumParameters; i++) { + _mesa_free((void *) paramList->Parameters[i].Name); + } + _mesa_free(paramList->Parameters); + paramList->NumParameters = 0; + paramList->Parameters = NULL; +} + + +/** + * Helper function used by the functions below. + */ +static GLint +add_parameter(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4], + enum parameter_type type) +{ + const GLuint n = paramList->NumParameters; + + paramList->Parameters = (struct program_parameter *) + _mesa_realloc(paramList->Parameters, + n * sizeof(struct program_parameter), + (n + 1) * sizeof(struct program_parameter)); + if (!paramList->Parameters) { + /* out of memory */ + paramList->NumParameters = 0; + return -1; + } + else { + paramList->NumParameters = n + 1; + paramList->Parameters[n].Name = _mesa_strdup(name); + paramList->Parameters[n].Type = type; + if (values) + COPY_4V(paramList->Parameters[n].Values, values); + return (GLint) n; + } +} + + +/** + * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement) + * \return index of the new entry in the parameter list + */ +GLint +_mesa_add_named_parameter(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]) +{ + return add_parameter(paramList, name, values, NAMED_PARAMETER); +} + + +/** + * Add a new unnamed constant to the parameter list. + * \param paramList - the parameter list + * \param values - four float values + * \return index of the new parameter. + */ +GLint +_mesa_add_named_constant(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]) +{ + return add_parameter(paramList, name, values, CONSTANT); +} + + +/** + * Add a new unnamed constant to the parameter list. + * \param paramList - the parameter list + * \param values - four float values + * \return index of the new parameter. + */ +GLint +_mesa_add_unnamed_constant(struct program_parameter_list *paramList, + const GLfloat values[4]) +{ + /* generate a new dummy name */ + static GLuint n = 0; + char name[20]; + _mesa_sprintf(name, "constant%d", n); + n++; + /* store it */ + return add_parameter(paramList, name, values, CONSTANT); +} + + +/** + * Add a new state reference to the parameter list. + * \param paramList - the parameter list + * \param state - an array of 6 state tokens + * + * \return index of the new parameter. + */ +GLint +_mesa_add_state_reference(struct program_parameter_list *paramList, + GLint *stateTokens) +{ + /* XXX Should we parse <stateString> here and produce the parameter's + * list of STATE_* tokens here, or in the parser? + */ + GLint a, idx; + + idx = add_parameter(paramList, "Some State", NULL, STATE); + + for (a=0; a<6; a++) + paramList->Parameters[idx].StateIndexes[a] = (enum state_index) stateTokens[a]; + + return idx; +} + + +/** + * Lookup a parameter value by name in the given parameter list. + * \return pointer to the float[4] values. + */ +GLfloat * +_mesa_lookup_parameter_value(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name) +{ + GLuint i; + + if (!paramList) + return NULL; + + if (nameLen == -1) { + /* name is null-terminated */ + for (i = 0; i < paramList->NumParameters; i++) { + if (_mesa_strcmp(paramList->Parameters[i].Name, name) == 0) + return paramList->Parameters[i].Values; + } + } + else { + /* name is not null-terminated, use nameLen */ + for (i = 0; i < paramList->NumParameters; i++) { + if (_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0 + && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen) + return paramList->Parameters[i].Values; + } + } + return NULL; +} + + +/** + * Lookup a parameter index by name in the given parameter list. + * \return index of parameter in the list. + */ +GLint +_mesa_lookup_parameter_index(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name) +{ + GLint i; + + if (!paramList) + return -1; + + if (nameLen == -1) { + /* name is null-terminated */ + for (i = 0; i < (GLint) paramList->NumParameters; i++) { + if (_mesa_strcmp(paramList->Parameters[i].Name, name) == 0) + return i; + } + } + else { + /* name is not null-terminated, use nameLen */ + for (i = 0; i < (GLint) paramList->NumParameters; i++) { + if (_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0 + && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen) + return i; + } + } + return -1; +} + + +/** + * Use the list of tokens in the state[] array to find global GL state + * and return it in <value>. Usually, four values are returned in <value> + * but matrix queries may return as many as 16 values. + * This function is used for ARB vertex/fragment programs. + * The program parser will produce the state[] values. + */ +static void +_mesa_fetch_state(GLcontext *ctx, const enum state_index state[], + GLfloat *value) +{ + switch (state[0]) { + case STATE_MATERIAL: + { + /* state[1] is either 0=front or 1=back side */ + const GLuint face = (GLuint) state[1]; + /* state[2] is the material attribute */ + switch (state[2]) { + case STATE_AMBIENT: + if (face == 0) + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT]); + else + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT]); + return; + case STATE_DIFFUSE: + if (face == 0) + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE]); + else + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE]); + return; + case STATE_SPECULAR: + if (face == 0) + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR]); + else + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SPECULAR]); + return; + case STATE_EMISSION: + if (face == 0) + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION]); + else + COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION]); + return; + case STATE_SHININESS: + if (face == 0) + value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0]; + else + value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SHININESS][0]; + value[1] = 0.0F; + value[2] = 0.0F; + value[3] = 1.0F; + return; + default: + _mesa_problem(ctx, "Invalid material state in fetch_state"); + return; + } + }; + return; + case STATE_LIGHT: + { + /* state[1] is the light number */ + const GLuint ln = (GLuint) state[1]; + /* state[2] is the light attribute */ + switch (state[2]) { + case STATE_AMBIENT: + COPY_4V(value, ctx->Light.Light[ln].Ambient); + return; + case STATE_DIFFUSE: + COPY_4V(value, ctx->Light.Light[ln].Diffuse); + return; + case STATE_SPECULAR: + COPY_4V(value, ctx->Light.Light[ln].Specular); + return; + case STATE_POSITION: + COPY_4V(value, ctx->Light.Light[ln].EyePosition); + return; + case STATE_ATTENUATION: + value[0] = ctx->Light.Light[ln].ConstantAttenuation; + value[1] = ctx->Light.Light[ln].LinearAttenuation; + value[2] = ctx->Light.Light[ln].QuadraticAttenuation; + value[3] = ctx->Light.Light[ln].SpotExponent; + return; + case STATE_SPOT_DIRECTION: + COPY_4V(value, ctx->Light.Light[ln].EyeDirection); + return; + case STATE_HALF: + { + GLfloat eye_z[] = {0, 0, 1}; + + /* Compute infinite half angle vector: + * half-vector = light_position + (0, 0, 1) + * and then normalize. w = 0 + * + * light.EyePosition.w should be 0 for infinite lights. + */ + ADD_3V(value, eye_z, ctx->Light.Light[ln].EyePosition); + NORMALIZE_3FV(value); + value[3] = 0; + } + return; + default: + _mesa_problem(ctx, "Invalid light state in fetch_state"); + return; + } + } + return; + case STATE_LIGHTMODEL_AMBIENT: + COPY_4V(value, ctx->Light.Model.Ambient); + return; + case STATE_LIGHTMODEL_SCENECOLOR: + if (state[1] == 0) { + /* front */ + GLint i; + for (i = 0; i < 4; i++) { + value[i] = ctx->Light.Model.Ambient[i] + * ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT][i] + + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION][i]; + } + } + else { + /* back */ + GLint i; + for (i = 0; i < 4; i++) { + value[i] = ctx->Light.Model.Ambient[i] + * ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT][i] + + ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION][i]; + } + } + return; + case STATE_LIGHTPROD: + { + const GLuint ln = (GLuint) state[1]; + const GLuint face = (GLuint) state[2]; + GLint i; + ASSERT(face == 0 || face == 1); + switch (state[3]) { + case STATE_AMBIENT: + for (i = 0; i < 3; i++) { + value[i] = ctx->Light.Light[ln].Ambient[i] * + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT+face][i]; + } + /* [3] = material alpha */ + value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3]; + return; + case STATE_DIFFUSE: + for (i = 0; i < 3; i++) { + value[i] = ctx->Light.Light[ln].Diffuse[i] * + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][i]; + } + /* [3] = material alpha */ + value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3]; + return; + case STATE_SPECULAR: + for (i = 0; i < 3; i++) { + value[i] = ctx->Light.Light[ln].Specular[i] * + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR+face][i]; + } + /* [3] = material alpha */ + value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3]; + return; + default: + _mesa_problem(ctx, "Invalid lightprod state in fetch_state"); + return; + } + } + return; + case STATE_TEXGEN: + { + /* state[1] is the texture unit */ + const GLuint unit = (GLuint) state[1]; + /* state[2] is the texgen attribute */ + switch (state[2]) { + case STATE_TEXGEN_EYE_S: + COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneS); + return; + case STATE_TEXGEN_EYE_T: + COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneT); + return; + case STATE_TEXGEN_EYE_R: + COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneR); + return; + case STATE_TEXGEN_EYE_Q: + COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneQ); + return; + case STATE_TEXGEN_OBJECT_S: + COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneS); + return; + case STATE_TEXGEN_OBJECT_T: + COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneT); + return; + case STATE_TEXGEN_OBJECT_R: + COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneR); + return; + case STATE_TEXGEN_OBJECT_Q: + COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneQ); + return; + default: + _mesa_problem(ctx, "Invalid texgen state in fetch_state"); + return; + } + } + return; + case STATE_TEXENV_COLOR: + { + /* state[1] is the texture unit */ + const GLuint unit = (GLuint) state[1]; + COPY_4V(value, ctx->Texture.Unit[unit].EnvColor); + } + return; + case STATE_FOG_COLOR: + COPY_4V(value, ctx->Fog.Color); + return; + case STATE_FOG_PARAMS: + value[0] = ctx->Fog.Density; + value[1] = ctx->Fog.Start; + value[2] = ctx->Fog.End; + value[3] = 1.0F / (ctx->Fog.End - ctx->Fog.Start); + return; + case STATE_CLIPPLANE: + { + const GLuint plane = (GLuint) state[1]; + COPY_4V(value, ctx->Transform.EyeUserPlane[plane]); + } + return; + case STATE_POINT_SIZE: + value[0] = ctx->Point.Size; + value[1] = ctx->Point.MinSize; + value[2] = ctx->Point.MaxSize; + value[3] = ctx->Point.Threshold; + return; + case STATE_POINT_ATTENUATION: + value[0] = ctx->Point.Params[0]; + value[1] = ctx->Point.Params[1]; + value[2] = ctx->Point.Params[2]; + value[3] = 1.0F; + return; + case STATE_MATRIX: + { + /* state[1] = modelview, projection, texture, etc. */ + /* state[2] = which texture matrix or program matrix */ + /* state[3] = first column to fetch */ + /* state[4] = last column to fetch */ + /* state[5] = transpose, inverse or invtrans */ + + const GLmatrix *matrix; + const enum state_index mat = state[1]; + const GLuint index = (GLuint) state[2]; + const GLuint first = (GLuint) state[3]; + const GLuint last = (GLuint) state[4]; + const enum state_index modifier = state[5]; + const GLfloat *m; + GLuint row, i; + if (mat == STATE_MODELVIEW) { + matrix = ctx->ModelviewMatrixStack.Top; + } + else if (mat == STATE_PROJECTION) { + matrix = ctx->ProjectionMatrixStack.Top; + } + else if (mat == STATE_MVP) { + matrix = &ctx->_ModelProjectMatrix; + } + else if (mat == STATE_TEXTURE) { + matrix = ctx->TextureMatrixStack[index].Top; + } + else if (mat == STATE_PROGRAM) { + matrix = ctx->ProgramMatrixStack[index].Top; + } + else { + _mesa_problem(ctx, "Bad matrix name in _mesa_fetch_state()"); + return; + } + if (modifier == STATE_MATRIX_INVERSE || + modifier == STATE_MATRIX_INVTRANS) { + /* XXX be sure inverse is up to date */ + m = matrix->inv; + } + else { + m = matrix->m; + } + if (modifier == STATE_MATRIX_TRANSPOSE || + modifier == STATE_MATRIX_INVTRANS) { + for (i = 0, row = first; row <= last; row++) { + value[i++] = m[row * 4 + 0]; + value[i++] = m[row * 4 + 1]; + value[i++] = m[row * 4 + 2]; + value[i++] = m[row * 4 + 3]; + } + } + else { + for (i = 0, row = first; row <= last; row++) { + value[i++] = m[row + 0]; + value[i++] = m[row + 4]; + value[i++] = m[row + 8]; + value[i++] = m[row + 12]; + } + } + } + return; + case STATE_DEPTH_RANGE: + value[0] = ctx->Viewport.Near; /* near */ + value[1] = ctx->Viewport.Far; /* far */ + value[2] = ctx->Viewport.Far - ctx->Viewport.Near; /* far - near */ + value[3] = 0; + return; + case STATE_FRAGMENT_PROGRAM: + { + /* state[1] = {STATE_ENV, STATE_LOCAL} */ + /* state[2] = parameter index */ + int idx = state[2]; + + switch (state[1]) { + case STATE_ENV: + COPY_4V(value, ctx->FragmentProgram.Parameters[idx]); + break; + + case STATE_LOCAL: + COPY_4V(value, ctx->FragmentProgram.Current->Base.LocalParams[idx]); + break; + default: + _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()"); + return; + } + } + return; + + case STATE_VERTEX_PROGRAM: + { + /* state[1] = {STATE_ENV, STATE_LOCAL} */ + /* state[2] = parameter index */ + int idx = state[2]; + + switch (state[1]) { + case STATE_ENV: + COPY_4V(value, ctx->VertexProgram.Parameters[idx]); + break; + + case STATE_LOCAL: + COPY_4V(value, ctx->VertexProgram.Current->Base.LocalParams[idx]); + break; + default: + _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()"); + return; + } + } + return; + default: + _mesa_problem(ctx, "Invalid state in fetch_state"); + return; + } +} + + +/** + * Loop over all the parameters in a parameter list. If the parameter + * is a GL state reference, look up the current value of that state + * variable and put it into the parameter's Value[4] array. + * This would be called at glBegin time when using a fragment program. + */ +void +_mesa_load_state_parameters(GLcontext *ctx, + struct program_parameter_list *paramList) +{ + GLuint i; + + if (!paramList) + return; + + for (i = 0; i < paramList->NumParameters; i++) { + if (paramList->Parameters[i].Type == STATE) { + _mesa_fetch_state(ctx, paramList->Parameters[i].StateIndexes, + paramList->Parameters[i].Values); + } + } +} + + + +/**********************************************************************/ +/* API functions */ +/**********************************************************************/ + + +/** + * Bind a program (make it current) + * \note Called from the GL API dispatcher by both glBindProgramNV + * and glBindProgramARB. + */ +void GLAPIENTRY +_mesa_BindProgram(GLenum target, GLuint id) +{ + struct program *prog; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + if ((target == GL_VERTEX_PROGRAM_NV + && ctx->Extensions.NV_vertex_program) || + (target == GL_VERTEX_PROGRAM_ARB + && ctx->Extensions.ARB_vertex_program)) { + if (ctx->VertexProgram.Current && + ctx->VertexProgram.Current->Base.Id == id) + return; + /* decrement refcount on previously bound vertex program */ + if (ctx->VertexProgram.Current) { + ctx->VertexProgram.Current->Base.RefCount--; + /* and delete if refcount goes below one */ + if (ctx->VertexProgram.Current->Base.RefCount <= 0) { + ctx->Driver.DeleteProgram(ctx, &(ctx->VertexProgram.Current->Base)); + _mesa_HashRemove(ctx->Shared->Programs, id); + } + } + } + else if ((target == GL_FRAGMENT_PROGRAM_NV + && ctx->Extensions.NV_fragment_program) || + (target == GL_FRAGMENT_PROGRAM_ARB + && ctx->Extensions.ARB_fragment_program)) { + if (ctx->FragmentProgram.Current && + ctx->FragmentProgram.Current->Base.Id == id) + return; + /* decrement refcount on previously bound fragment program */ + if (ctx->FragmentProgram.Current) { + ctx->FragmentProgram.Current->Base.RefCount--; + /* and delete if refcount goes below one */ + if (ctx->FragmentProgram.Current->Base.RefCount <= 0) { + ctx->Driver.DeleteProgram(ctx, &(ctx->FragmentProgram.Current->Base)); + _mesa_HashRemove(ctx->Shared->Programs, id); + } + } + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)"); + return; + } + + /* NOTE: binding to a non-existant program is not an error. + * That's supposed to be caught in glBegin. + */ + if (id == 0) { + /* default program */ + prog = NULL; + if (target == GL_VERTEX_PROGRAM_NV || target == GL_VERTEX_PROGRAM_ARB) + prog = ctx->Shared->DefaultVertexProgram; + else + prog = ctx->Shared->DefaultFragmentProgram; + } + else { + prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); + if (prog) { + if (prog->Target == 0) { + /* prog was allocated with glGenProgramsNV */ + prog->Target = target; + } + else if (prog->Target != target) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindProgramNV/ARB(target mismatch)"); + return; + } + } + else { + /* allocate a new program now */ + prog = ctx->Driver.NewProgram(ctx, target, id); + if (!prog) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB"); + return; + } + prog->Id = id; + prog->Target = target; + prog->Resident = GL_TRUE; + prog->RefCount = 1; + _mesa_HashInsert(ctx->Shared->Programs, id, prog); + } + } + + /* bind now */ + if (target == GL_VERTEX_PROGRAM_NV || target == GL_VERTEX_PROGRAM_ARB) { + ctx->VertexProgram.Current = (struct vertex_program *) prog; + } + else if (target == GL_FRAGMENT_PROGRAM_NV || target == GL_FRAGMENT_PROGRAM_ARB) { + ctx->FragmentProgram.Current = (struct fragment_program *) prog; + } + + if (prog) + prog->RefCount++; + + if (ctx->Driver.BindProgram) + ctx->Driver.BindProgram(ctx, target, prog); +} + + +/** + * Delete a list of programs. + * \note Not compiled into display lists. + * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB. + */ +void GLAPIENTRY +_mesa_DeletePrograms(GLsizei n, const GLuint *ids) +{ + GLint i; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (n < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" ); + return; + } + + for (i = 0; i < n; i++) { + if (ids[i] != 0) { + struct program *prog = (struct program *) + _mesa_HashLookup(ctx->Shared->Programs, ids[i]); + if (prog) { + if (prog->Target == GL_VERTEX_PROGRAM_NV || + prog->Target == GL_VERTEX_STATE_PROGRAM_NV) { + if (ctx->VertexProgram.Current && + ctx->VertexProgram.Current->Base.Id == ids[i]) { + /* unbind this currently bound program */ + _mesa_BindProgram(prog->Target, 0); + } + } + else if (prog->Target == GL_FRAGMENT_PROGRAM_NV || + prog->Target == GL_FRAGMENT_PROGRAM_ARB) { + if (ctx->FragmentProgram.Current && + ctx->FragmentProgram.Current->Base.Id == ids[i]) { + /* unbind this currently bound program */ + _mesa_BindProgram(prog->Target, 0); + } + } + else { + _mesa_problem(ctx, "bad target in glDeleteProgramsNV"); + return; + } + prog->RefCount--; + if (prog->RefCount <= 0) { + ctx->Driver.DeleteProgram(ctx, prog); + } + } + else { + /* This is necessary as we can't tell from HashLookup + * whether the entry exists with data == 0, or if it + * doesn't exist at all. As GenPrograms creates the first + * case below, need to call Remove() to avoid memory leak: + */ + _mesa_HashRemove(ctx->Shared->Programs, ids[i]); + } + } + } +} + + +/** + * Generate a list of new program identifiers. + * \note Not compiled into display lists. + * \note Called by both glGenProgramsNV and glGenProgramsARB. + */ +void GLAPIENTRY +_mesa_GenPrograms(GLsizei n, GLuint *ids) +{ + GLuint first; + GLuint i; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms"); + return; + } + + if (!ids) + return; + + first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n); + + for (i = 0; i < (GLuint) n; i++) { + _mesa_HashInsert(ctx->Shared->Programs, first + i, 0); + } + + /* Return the program names */ + for (i = 0; i < (GLuint) n; i++) { + ids[i] = first + i; + } +} + + +/** + * Determine if id names a program. + * \note Not compiled into display lists. + * \note Called from both glIsProgramNV and glIsProgramARB. + * \param id is the program identifier + * \return GL_TRUE if id is a program, else GL_FALSE. + */ +GLboolean GLAPIENTRY +_mesa_IsProgram(GLuint id) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + if (id == 0) + return GL_FALSE; + + if (_mesa_HashLookup(ctx->Shared->Programs, id)) + return GL_TRUE; + else + return GL_FALSE; +} + + + +/**********************************************************************/ +/* GL_MESA_program_debug extension */ +/**********************************************************************/ + + +/* XXX temporary */ +void +glProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback, + GLvoid *data) +{ + _mesa_ProgramCallbackMESA(target, callback, data); +} + + +void +_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback, + GLvoid *data) +{ + GET_CURRENT_CONTEXT(ctx); + + switch (target) { + case GL_FRAGMENT_PROGRAM_ARB: + if (!ctx->Extensions.ARB_fragment_program) { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)"); + return; + } + ctx->FragmentProgram.Callback = callback; + ctx->FragmentProgram.CallbackData = data; + break; + case GL_FRAGMENT_PROGRAM_NV: + if (!ctx->Extensions.NV_fragment_program) { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)"); + return; + } + ctx->FragmentProgram.Callback = callback; + ctx->FragmentProgram.CallbackData = data; + break; + case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */ + if (!ctx->Extensions.ARB_vertex_program && + !ctx->Extensions.NV_vertex_program) { + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)"); + return; + } + ctx->VertexProgram.Callback = callback; + ctx->VertexProgram.CallbackData = data; + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)"); + return; + } +} + + +/* XXX temporary */ +void +glGetProgramRegisterfvMESA(GLenum target, + GLsizei len, const GLubyte *registerName, + GLfloat *v) +{ + _mesa_GetProgramRegisterfvMESA(target, len, registerName, v); +} + + +void +_mesa_GetProgramRegisterfvMESA(GLenum target, + GLsizei len, const GLubyte *registerName, + GLfloat *v) +{ + char reg[1000]; + GET_CURRENT_CONTEXT(ctx); + + /* We _should_ be inside glBegin/glEnd */ +#if 0 + if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramRegisterfvMESA"); + return; + } +#endif + + /* make null-terminated copy of registerName */ + len = MIN2((unsigned int) len, sizeof(reg) - 1); + _mesa_memcpy(reg, registerName, len); + reg[len] = 0; + + switch (target) { + case GL_VERTEX_PROGRAM_NV: + if (!ctx->Extensions.ARB_vertex_program && + !ctx->Extensions.NV_vertex_program) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetProgramRegisterfvMESA(target)"); + return; + } + if (!ctx->VertexProgram.Enabled) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetProgramRegisterfvMESA"); + return; + } + /* GL_NV_vertex_program */ + if (reg[0] == 'R') { + /* Temp register */ + GLint i = _mesa_atoi(reg + 1); + if (i >= (GLint)ctx->Const.MaxVertexProgramTemps) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + COPY_4V(v, ctx->VertexProgram.Temporaries[i]); + } + else if (reg[0] == 'v' && reg[1] == '[') { + /* Vertex Input attribute */ + GLuint i; + for (i = 0; i < ctx->Const.MaxVertexProgramAttribs; i++) { + const char *name = _mesa_nv_vertex_input_register_name(i); + char number[10]; + sprintf(number, "%d", i); + if (_mesa_strncmp(reg + 2, name, 4) == 0 || + _mesa_strncmp(reg + 2, number, _mesa_strlen(number)) == 0) { + COPY_4V(v, ctx->VertexProgram.Inputs[i]); + return; + } + } + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + else if (reg[0] == 'o' && reg[1] == '[') { + /* Vertex output attribute */ + } + /* GL_ARB_vertex_program */ + else if (_mesa_strncmp(reg, "vertex.", 7) == 0) { + + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + break; + case GL_FRAGMENT_PROGRAM_ARB: + if (!ctx->Extensions.ARB_fragment_program) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetProgramRegisterfvMESA(target)"); + return; + } + if (!ctx->FragmentProgram.Enabled) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetProgramRegisterfvMESA"); + return; + } + /* XXX to do */ + break; + case GL_FRAGMENT_PROGRAM_NV: + if (!ctx->Extensions.NV_fragment_program) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetProgramRegisterfvMESA(target)"); + return; + } + if (!ctx->FragmentProgram.Enabled) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetProgramRegisterfvMESA"); + return; + } + if (reg[0] == 'R') { + /* Temp register */ + GLint i = _mesa_atoi(reg + 1); + if (i >= (GLint)ctx->Const.MaxFragmentProgramTemps) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + COPY_4V(v, ctx->FragmentProgram.Machine.Temporaries[i]); + } + else if (reg[0] == 'f' && reg[1] == '[') { + /* Fragment input attribute */ + GLuint i; + for (i = 0; i < ctx->Const.MaxFragmentProgramAttribs; i++) { + const char *name = _mesa_nv_fragment_input_register_name(i); + if (_mesa_strncmp(reg + 2, name, 4) == 0) { + COPY_4V(v, ctx->FragmentProgram.Machine.Inputs[i]); + return; + } + } + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + else if (_mesa_strcmp(reg, "o[COLR]") == 0) { + /* Fragment output color */ + COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_COLR]); + } + else if (_mesa_strcmp(reg, "o[COLH]") == 0) { + /* Fragment output color */ + COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_COLH]); + } + else if (_mesa_strcmp(reg, "o[DEPR]") == 0) { + /* Fragment output depth */ + COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_DEPR]); + } + else { + /* try user-defined identifiers */ + const GLfloat *value = _mesa_lookup_parameter_value( + ctx->FragmentProgram.Current->Parameters, -1, reg); + if (value) { + COPY_4V(v, value); + } + else { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + } + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetProgramRegisterfvMESA(target)"); + return; + } + +} diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h new file mode 100644 index 00000000000..f71b46f1f70 --- /dev/null +++ b/src/mesa/shader/program.h @@ -0,0 +1,253 @@ +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file program.c + * Vertex and fragment program support functions. + * \author Brian Paul + */ + + +#ifndef PROGRAM_H +#define PROGRAM_H + +#include "mtypes.h" + + +/* for GL_ARB_v_p and GL_ARB_f_p SWZ instruction */ +#define SWIZZLE_X 0 +#define SWIZZLE_Y 1 +#define SWIZZLE_Z 2 +#define SWIZZLE_W 3 +#define SWIZZLE_ZERO 4 /* keep these values together: KW */ +#define SWIZZLE_ONE 5 /* keep these values together: KW */ + + +/* + * Internal functions + */ + +extern void +_mesa_init_program(GLcontext *ctx); + +extern void +_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string); + +extern const GLubyte * +_mesa_find_line_column(const GLubyte *string, const GLubyte *pos, + GLint *line, GLint *col); + + +extern struct program * +_mesa_init_vertex_program( GLcontext *ctx, + struct vertex_program *prog, + GLenum target, + GLuint id ); + +extern struct program * +_mesa_init_fragment_program( GLcontext *ctx, + struct fragment_program *prog, + GLenum target, + GLuint id ); + +extern struct program * +_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id); + +extern void +_mesa_delete_program(GLcontext *ctx, struct program *prog); + + + +/* + * Used for describing GL state referenced from inside ARB vertex and + * fragment programs. + * A string such as "state.light[0].ambient" gets translated into a + * sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ]. + */ +enum state_index { + STATE_MATERIAL, + + STATE_LIGHT, + STATE_LIGHTMODEL_AMBIENT, + STATE_LIGHTMODEL_SCENECOLOR, + STATE_LIGHTPROD, + + STATE_TEXGEN, + + STATE_FOG_COLOR, + STATE_FOG_PARAMS, + + STATE_CLIPPLANE, + + STATE_POINT_SIZE, + STATE_POINT_ATTENUATION, + + STATE_MATRIX, + STATE_MODELVIEW, + STATE_PROJECTION, + STATE_MVP, + STATE_TEXTURE, + STATE_PROGRAM, + STATE_MATRIX_INVERSE, + STATE_MATRIX_TRANSPOSE, + STATE_MATRIX_INVTRANS, + + STATE_AMBIENT, + STATE_DIFFUSE, + STATE_SPECULAR, + STATE_EMISSION, + STATE_SHININESS, + STATE_HALF, + + STATE_POSITION, + STATE_ATTENUATION, + STATE_SPOT_DIRECTION, + + STATE_TEXGEN_EYE_S, + STATE_TEXGEN_EYE_T, + STATE_TEXGEN_EYE_R, + STATE_TEXGEN_EYE_Q, + STATE_TEXGEN_OBJECT_S, + STATE_TEXGEN_OBJECT_T, + STATE_TEXGEN_OBJECT_R, + STATE_TEXGEN_OBJECT_Q, + + STATE_TEXENV_COLOR, + + STATE_DEPTH_RANGE, + + STATE_VERTEX_PROGRAM, + STATE_FRAGMENT_PROGRAM, + + STATE_ENV, + STATE_LOCAL +}; + + + +/* + * Named program parameters + * Used for NV_fragment_program "DEFINE"d constants and "DECLARE"d parameters, + * and ARB_fragment_program global state references. For the later, Name + * might be "state.light[0].diffuse", for example. + */ + +enum parameter_type +{ + NAMED_PARAMETER, + CONSTANT, + STATE +}; + + +struct program_parameter +{ + const char *Name; /* Null-terminated */ + enum parameter_type Type; + enum state_index StateIndexes[6]; /* Global state reference */ + GLfloat Values[4]; +}; + + +struct program_parameter_list +{ + GLuint NumParameters; + struct program_parameter *Parameters; +}; + + +/* + * Program parameter functions + */ + +extern struct program_parameter_list * +_mesa_new_parameter_list(void); + +extern void +_mesa_free_parameter_list(struct program_parameter_list *paramList); + +extern void +_mesa_free_parameters(struct program_parameter_list *paramList); + +extern GLint +_mesa_add_named_parameter(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]); + +extern GLint +_mesa_add_named_constant(struct program_parameter_list *paramList, + const char *name, const GLfloat values[4]); + +extern GLint +_mesa_add_unnamed_constant(struct program_parameter_list *paramList, + const GLfloat values[4]); + +extern GLint +_mesa_add_state_reference(struct program_parameter_list *paramList, + GLint *stateTokens); + +extern GLfloat * +_mesa_lookup_parameter_value(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name); + +extern GLint +_mesa_lookup_parameter_index(struct program_parameter_list *paramList, + GLsizei nameLen, const char *name); + +extern void +_mesa_load_state_parameters(GLcontext *ctx, + struct program_parameter_list *paramList); + + +/* + * API functions + */ + +extern void GLAPIENTRY +_mesa_BindProgram(GLenum target, GLuint id); + +extern void GLAPIENTRY +_mesa_DeletePrograms(GLsizei n, const GLuint *ids); + +extern void GLAPIENTRY +_mesa_GenPrograms(GLsizei n, GLuint *ids); + +extern GLboolean GLAPIENTRY +_mesa_IsProgram(GLuint id); + + + +/* + * GL_MESA_program_debug + */ + +extern void +_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback, + GLvoid *data); + +extern void +_mesa_GetProgramRegisterfvMESA(GLenum target, GLsizei len, + const GLubyte *registerName, GLfloat *v); + + +#endif /* PROGRAM_H */ |