diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/state_tracker/st_program.c | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c new file mode 100644 index 00000000000..88c02e5b750 --- /dev/null +++ b/src/mesa/state_tracker/st_program.c @@ -0,0 +1,413 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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: + * Keith Whitwell <[email protected]> + * Brian Paul + */ + + +#include "shader/prog_parameter.h" +#include "shader/prog_print.h" +#include "tnl/t_vp_build.h" + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_winsys.h" +#include "pipe/tgsi/mesa/mesa_to_tgsi.h" +#include "pipe/tgsi/exec/tgsi_core.h" + +#include "st_context.h" +#include "st_cache.h" +#include "st_atom.h" +#include "st_program.h" + + +#define TGSI_DEBUG 1 + + +/** + * Translate a Mesa vertex shader into a TGSI shader. + * \param outputMapping to map vertex program output registers to TGSI + * output slots + * \param tokensOut destination for TGSI tokens + * \return pointer to cached pipe_shader object. + */ +const struct cso_vertex_shader * +st_translate_vertex_program(struct st_context *st, + struct st_vertex_program *stvp, + const GLuint outputMapping[], + struct tgsi_token *tokensOut, + GLuint maxTokens) +{ + GLuint defaultOutputMapping[VERT_RESULT_MAX]; + struct pipe_shader_state vs; + const struct cso_vertex_shader *cso; + GLuint attr, i; + + memset(&vs, 0, sizeof(vs)); + + /* + * Determine number of inputs, the mappings between VERT_ATTRIB_x + * and TGSI generic input indexes, plus input attrib semantic info. + */ + for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) { + if (stvp->Base.Base.InputsRead & (1 << attr)) { + const GLuint slot = vs.num_inputs; + + vs.num_inputs++; + + stvp->input_to_index[attr] = slot; + stvp->index_to_input[slot] = attr; + + switch (attr) { + case VERT_ATTRIB_POS: + vs.input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; + vs.input_semantic_index[slot] = 0; + break; + case VERT_ATTRIB_WEIGHT: + /* fall-through */ + case VERT_ATTRIB_NORMAL: + /* just label as a generic */ + vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + vs.input_semantic_index[slot] = 0; + break; + case VERT_ATTRIB_COLOR0: + vs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + vs.input_semantic_index[slot] = 0; + break; + case VERT_ATTRIB_COLOR1: + vs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + vs.input_semantic_index[slot] = 1; + break; + case VERT_ATTRIB_FOG: + vs.input_semantic_name[slot] = TGSI_SEMANTIC_FOG; + vs.input_semantic_index[slot] = 0; + break; + case VERT_ATTRIB_TEX0: + case VERT_ATTRIB_TEX1: + case VERT_ATTRIB_TEX2: + case VERT_ATTRIB_TEX3: + case VERT_ATTRIB_TEX4: + case VERT_ATTRIB_TEX5: + case VERT_ATTRIB_TEX6: + case VERT_ATTRIB_TEX7: + vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + vs.input_semantic_index[slot] = attr - VERT_ATTRIB_TEX0; + break; + case VERT_ATTRIB_GENERIC0: + case VERT_ATTRIB_GENERIC1: + case VERT_ATTRIB_GENERIC2: + case VERT_ATTRIB_GENERIC3: + case VERT_ATTRIB_GENERIC4: + case VERT_ATTRIB_GENERIC5: + case VERT_ATTRIB_GENERIC6: + case VERT_ATTRIB_GENERIC7: + assert(attr < VERT_ATTRIB_MAX); + vs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + vs.input_semantic_index[slot] = attr - VERT_ATTRIB_GENERIC0; + break; + default: + assert(0); + } + } + } + + /* initialize output semantics to defaults */ + for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) { + vs.output_semantic_name[i] = TGSI_SEMANTIC_GENERIC; + vs.output_semantic_index[i] = 0; + } + + /* + * Determine number of outputs, the (default) output register + * mapping and the semantic information for each output. + */ + for (attr = 0; attr < VERT_RESULT_MAX; attr++) { + if (stvp->Base.Base.OutputsWritten & (1 << attr)) { + GLuint slot; + + if (outputMapping) { + slot = outputMapping[attr]; + assert(slot != ~0); + } + else { + slot = vs.num_outputs; + vs.num_outputs++; + defaultOutputMapping[attr] = slot; + } + + /* + printf("Output %u -> slot %u\n", attr, slot); + */ + + switch (attr) { + case VERT_RESULT_HPOS: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; + vs.output_semantic_index[slot] = 0; + break; + case VERT_RESULT_COL0: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + vs.output_semantic_index[slot] = 0; + break; + case VERT_RESULT_COL1: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + vs.output_semantic_index[slot] = 1; + break; + case VERT_RESULT_BFC0: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; + vs.output_semantic_index[slot] = 0; + break; + case VERT_RESULT_BFC1: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; + vs.output_semantic_index[slot] = 1; + break; + case VERT_RESULT_FOGC: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_FOG; + vs.output_semantic_index[slot] = 0; + break; + case VERT_RESULT_PSIZ: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; + vs.output_semantic_index[slot] = 0; + break; + case VERT_RESULT_EDGE: + assert(0); + break; + case VERT_RESULT_TEX0: + case VERT_RESULT_TEX1: + case VERT_RESULT_TEX2: + case VERT_RESULT_TEX3: + case VERT_RESULT_TEX4: + case VERT_RESULT_TEX5: + case VERT_RESULT_TEX6: + case VERT_RESULT_TEX7: + vs.output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + vs.output_semantic_index[slot] = attr - VERT_RESULT_TEX0; + break; + case VERT_RESULT_VAR0: + /* fall-through */ + default: + assert(attr - VERT_RESULT_VAR0 < MAX_VARYING); + vs.output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + vs.output_semantic_index[slot] = attr - VERT_RESULT_VAR0; + } + } + } + + + if (outputMapping) { + /* find max output slot referenced to compute vs.num_outputs */ + GLuint maxSlot = 0; + for (attr = 0; attr < VERT_RESULT_MAX; attr++) { + if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot) + maxSlot = outputMapping[attr]; + } + vs.num_outputs = maxSlot + 1; + } + else { + outputMapping = defaultOutputMapping; + } + + /* XXX: fix static allocation of tokens: + */ + tgsi_mesa_compile_vp_program( &stvp->Base, + /* inputs */ + vs.num_inputs, + stvp->input_to_index, + vs.input_semantic_name, + vs.input_semantic_index, + /* outputs */ + vs.num_outputs, + outputMapping, + vs.output_semantic_name, + vs.output_semantic_index, + /* tokenized result */ + tokensOut, maxTokens); + + vs.tokens = tokensOut; + cso = st_cached_vs_state(st, &vs); + stvp->vs = cso; + + if (TGSI_DEBUG) + tgsi_dump( tokensOut, 0 ); + +#if defined(USE_X86_ASM) || defined(SLANG_X86) + if (stvp->sse2_program.csr == stvp->sse2_program.store) + tgsi_emit_sse2( tokensOut, &stvp->sse2_program ); + + if (!cso->state.executable) + ((struct cso_vertex_shader*)cso)->state.executable = (void *) x86_get_func( &stvp->sse2_program ); +#endif + + return cso; +} + + + +/** + * Translate a Mesa fragment shader into a TGSI shader. + * \param inputMapping to map fragment program input registers to TGSI + * input slots + * \param tokensOut destination for TGSI tokens + * \return pointer to cached pipe_shader object. + */ +const struct cso_fragment_shader * +st_translate_fragment_program(struct st_context *st, + struct st_fragment_program *stfp, + const GLuint inputMapping[], + struct tgsi_token *tokensOut, + GLuint maxTokens) +{ + GLuint outputMapping[FRAG_RESULT_MAX]; + GLuint defaultInputMapping[FRAG_ATTRIB_MAX]; + struct pipe_shader_state fs; + const struct cso_fragment_shader *cso; + GLuint interpMode[16]; /* XXX size? */ + GLuint attr; + GLbitfield inputsRead = stfp->Base.Base.InputsRead; + + /* Check if all fragment programs need the fragment position (in order + * to do perspective-corrected interpolation). + */ + /* XXX temporary! */ + if (st->pipe->get_param(st->pipe, PIPE_PARAM_FS_NEEDS_POS)) + inputsRead |= FRAG_BIT_WPOS; + + memset(&fs, 0, sizeof(fs)); + + /* + * Convert Mesa program inputs to TGSI input register semantics. + */ + for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) { + if (inputsRead & (1 << attr)) { + const GLuint slot = fs.num_inputs; + + fs.num_inputs++; + + defaultInputMapping[attr] = slot; + + switch (attr) { + case FRAG_ATTRIB_WPOS: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; + fs.input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; + break; + case FRAG_ATTRIB_COL0: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + fs.input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + break; + case FRAG_ATTRIB_COL1: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + fs.input_semantic_index[slot] = 1; + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + break; + case FRAG_ATTRIB_FOGC: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_FOG; + fs.input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + break; + case FRAG_ATTRIB_TEX0: + case FRAG_ATTRIB_TEX1: + case FRAG_ATTRIB_TEX2: + case FRAG_ATTRIB_TEX3: + case FRAG_ATTRIB_TEX4: + case FRAG_ATTRIB_TEX5: + case FRAG_ATTRIB_TEX6: + case FRAG_ATTRIB_TEX7: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + fs.input_semantic_index[slot] = attr - FRAG_ATTRIB_TEX0; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + break; + case FRAG_ATTRIB_VAR0: + /* fall-through */ + default: + fs.input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + fs.input_semantic_index[slot] = attr - FRAG_ATTRIB_VAR0; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + } + } + } + + /* + * Semantics for outputs + */ + for (attr = 0; attr < FRAG_RESULT_MAX; attr++) { + if (stfp->Base.Base.OutputsWritten & (1 << attr)) { + switch (attr) { + case FRAG_RESULT_DEPR: + fs.output_semantic_name[fs.num_outputs] = TGSI_SEMANTIC_POSITION; + outputMapping[attr] = fs.num_outputs; + break; + case FRAG_RESULT_COLR: + fs.output_semantic_name[fs.num_outputs] = TGSI_SEMANTIC_COLOR; + outputMapping[attr] = fs.num_outputs; + break; + default: + assert(0); + } + fs.num_outputs++; + } + } + + if (!inputMapping) + inputMapping = defaultInputMapping; + + /* XXX: fix static allocation of tokens: + */ + tgsi_mesa_compile_fp_program( &stfp->Base, + /* inputs */ + fs.num_inputs, + inputMapping, + fs.input_semantic_name, + fs.input_semantic_index, + interpMode, + /* outputs */ + outputMapping, + /* tokenized result */ + tokensOut, maxTokens); + + + fs.tokens = tokensOut; + + cso = st_cached_fs_state(st, &fs); + stfp->fs = cso; + + if (TGSI_DEBUG) + tgsi_dump( tokensOut, 0/*TGSI_DUMP_VERBOSE*/ ); + +#if defined(USE_X86_ASM) || defined(SLANG_X86) + if (stfp->sse2_program.csr == stfp->sse2_program.store) + tgsi_emit_sse2_fs( tokensOut, &stfp->sse2_program ); + + if (!cso->state.executable) + ((struct cso_fragment_shader*)cso)->state.executable = (void *) x86_get_func( &stfp->sse2_program ); +#endif + + return cso; +} + |