diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/shader/slang/slang_codegen.c | 2 | ||||
| -rw-r--r-- | src/mesa/shader/slang/slang_link.c | 39 |
2 files changed, 36 insertions, 5 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index ad9cf06e275..bde09fdf4ad 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -2433,8 +2433,6 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var) */ n->Store->Swizzle = SWIZZLE_NOOP; } - - A->program->NumTemporaries++; /* an approximation */ } return n; } diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c index 26959d9d151..694623f4b00 100644 --- a/src/mesa/shader/slang/slang_link.c +++ b/src/mesa/shader/slang/slang_link.c @@ -277,6 +277,36 @@ _slang_resolve_attributes(struct gl_shader_program *shProg, /** + * Scan program instructions to update the program's NumTemporaries field. + * Note: this implemenation relies on the code generator allocating + * temps in increasing order (0, 1, 2, ... ). + */ +static void +_slang_count_temporaries(struct gl_program *prog) +{ + GLuint i, j; + GLint maxIndex = -1; + + for (i = 0; i < prog->NumInstructions; i++) { + const struct prog_instruction *inst = prog->Instructions + i; + const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode); + for (j = 0; j < numSrc; j++) { + if (inst->SrcReg[j].File == PROGRAM_TEMPORARY) { + if (maxIndex < inst->SrcReg[j].Index) + maxIndex = inst->SrcReg[j].Index; + } + if (inst->DstReg.File == PROGRAM_TEMPORARY) { + if (maxIndex < inst->DstReg.Index) + maxIndex = inst->DstReg.Index; + } + } + } + + prog->NumTemporaries = (GLuint) (maxIndex + 1); +} + + +/** * Scan program instructions to update the program's InputsRead and * OutputsWritten fields. */ @@ -459,6 +489,7 @@ _slang_link(GLcontext *ctx, if (shProg->VertexProgram) { _slang_update_inputs_outputs(&shProg->VertexProgram->Base); + _slang_count_temporaries(&shProg->VertexProgram->Base); if (!(shProg->VertexProgram->Base.OutputsWritten & (1 << VERT_RESULT_HPOS))) { /* the vertex program did not compute a vertex position */ link_error(shProg, @@ -466,8 +497,10 @@ _slang_link(GLcontext *ctx, return; } } - if (shProg->FragmentProgram) + if (shProg->FragmentProgram) { + _slang_count_temporaries(&shProg->FragmentProgram->Base); _slang_update_inputs_outputs(&shProg->FragmentProgram->Base); + } /* Check that all the varying vars needed by the fragment shader are * actually produced by the vertex shader. @@ -500,7 +533,7 @@ _slang_link(GLcontext *ctx, _mesa_print_program(&fragProg->Base); _mesa_print_program_parameters(ctx, &fragProg->Base); #endif -#if 0 +#if 01 printf("************** linked fragment prog\n"); _mesa_print_program(&shProg->FragmentProgram->Base); _mesa_print_program_parameters(ctx, &shProg->FragmentProgram->Base); @@ -516,7 +549,7 @@ _slang_link(GLcontext *ctx, _mesa_print_program(&vertProg->Base); _mesa_print_program_parameters(ctx, &vertProg->Base); #endif -#if 0 +#if 01 printf("************** linked vertex prog\n"); _mesa_print_program(&shProg->VertexProgram->Base); _mesa_print_program_parameters(ctx, &shProg->VertexProgram->Base); |