diff options
Diffstat (limited to 'src/mesa/swrast/s_tcc.c')
| -rw-r--r-- | src/mesa/swrast/s_tcc.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/src/mesa/swrast/s_tcc.c b/src/mesa/swrast/s_tcc.c deleted file mode 100644 index 9e6f4f26b7d..00000000000 --- a/src/mesa/swrast/s_tcc.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 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. - */ - -/* An attempt to hook s_fragprog_to_c.c up to libtcc.a to try & - * generate some real code. - * - * TCC isn't threadsafe, so it will need additional locking help if we - * end up using it as a backend in mesa. - */ - -#include "glheader.h" -#include "imports.h" -#include "colormac.h" -#include "context.h" -#include "program_instruction.h" -#include "macros.h" -#include "program.h" - -#include "s_nvfragprog.h" - -#ifdef USE_TCC - -#include <libtcc.h> - -typedef int (*cfunc)( void *ctx, - const GLfloat (*local_param)[4], - const GLfloat (*env_param)[4], - const struct program_parameter *state_param, - const GLfloat (*interp)[4], - GLfloat (*outputs)[4]); - - -static cfunc current_func; -static struct fragment_program *current_program; -static TCCState *current_tcc_state; - - -static void TEX( void *cc, const float *texcoord, int unit, float *result ) -{ - GLcontext *ctx = (GLcontext *)cc; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLfloat lambda = 1.0; /* hack */ - GLchan rgba[4]; - - swrast->TextureSample[unit](ctx, ctx->Texture.Unit[unit]._Current, - 1, (const GLfloat (*)[4]) texcoord, - &lambda, &rgba); - - result[0] = CHAN_TO_FLOAT(rgba[0]); - result[1] = CHAN_TO_FLOAT(rgba[1]); - result[2] = CHAN_TO_FLOAT(rgba[2]); - result[3] = CHAN_TO_FLOAT(rgba[3]); -} - - -static void TXB( void *cc, const float *texcoord, int unit, float *result ) -{ - GLcontext *ctx = (GLcontext *)cc; - SWcontext *swrast = SWRAST_CONTEXT(ctx); - GLfloat lambda = 1.0; /* hack */ - GLchan rgba[4]; - - /* texcoord[3] is the bias to add to lambda */ - lambda += texcoord[3]; - - - /* Is it necessary to reset texcoord[3] to 1 at this point? - */ - swrast->TextureSample[unit](ctx, ctx->Texture.Unit[unit]._Current, - 1, (const GLfloat (*)[4]) texcoord, - &lambda, &rgba); - - result[0] = CHAN_TO_FLOAT(rgba[0]); - result[1] = CHAN_TO_FLOAT(rgba[1]); - result[2] = CHAN_TO_FLOAT(rgba[2]); - result[3] = CHAN_TO_FLOAT(rgba[3]); -} - - -static void TXP( void *cc, const float *texcoord, int unit, float *result ) -{ - /* I think that TEX needs to undo the perspective divide which has - * already occurred. In the meantime, TXP is correct to do this: - */ - TEX( cc, texcoord, unit, result ); -} - - -static cfunc codegen( TCCState *s, const char *prog, const char *fname ) -{ - unsigned long val; - - if (s) - tcc_delete(s); - - s = tcc_new(); - if (!s) - return 0; - - tcc_set_output_type(s, TCC_OUTPUT_MEMORY); - tcc_compile_string(s, prog); - -/* tcc_add_dll("/usr/lib/libm.so"); */ - - tcc_add_symbol(s, "TEX", (unsigned long)&TEX); - tcc_add_symbol(s, "TXB", (unsigned long)&TXB); - tcc_add_symbol(s, "TXP", (unsigned long)&TXP); - - - tcc_relocate(s); - tcc_get_symbol(s, &val, fname); - return (cfunc) val; -} - -/* TCC isn't threadsafe and even seems not to like having more than - * one TCCState created or used at any one time in a single threaded - * environment. So, this code is all for investigation only and can't - * currently be used in Mesa proper. - * - * I've taken some liberties with globals myself, now. - */ -GLboolean -_swrast_execute_codegen_program( GLcontext *ctx, - const struct fragment_program *program, GLuint maxInst, - struct fp_machine *machine, const struct sw_span *span, - GLuint column ) -{ - if (program != current_program) { - - _swrast_translate_program( ctx ); - - fprintf(stderr, "%s: compiling:\n%s\n", __FUNCTION__, program->c_str); - - current_program = program; - current_func = codegen( current_tcc_state, program->c_str, - "run_program" ); - } - - assert(current_func); - - return current_func( ctx, - program->Base.LocalParams, - (const GLfloat (*)[4])ctx->FragmentProgram.Parameters, - program->Parameters->Parameters, - (const GLfloat (*)[4])machine->Inputs, - machine->Outputs ); -} - -#else /* USE_TCC */ - -GLboolean -_swrast_execute_codegen_program( GLcontext *ctx, - const struct fragment_program *program, GLuint maxInst, - struct fp_machine *machine, const struct sw_span *span, - GLuint column ) -{ - (void) ctx; - (void) program; (void) maxInst; - (void) machine; (void) span; - (void) column; - return 0; -} - -#endif |