diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_fragprog.c')
-rw-r--r-- | src/mesa/drivers/dri/r300/r300_fragprog.c | 244 |
1 files changed, 1 insertions, 243 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog.c b/src/mesa/drivers/dri/r300/r300_fragprog.c index 13a1c300ddf..825246687fb 100644 --- a/src/mesa/drivers/dri/r300/r300_fragprog.c +++ b/src/mesa/drivers/dri/r300/r300_fragprog.c @@ -25,21 +25,6 @@ * */ -/** - * \file - * - * Fragment program compiler. Perform transformations on the intermediate - * representation until the program is in a form where we can translate - * it more or less directly into machine-readable form. - * - * \author Ben Skeggs <[email protected]> - * \author Jerome Glisse <[email protected]> - */ - -#include "main/glheader.h" -#include "main/macros.h" -#include "main/enums.h" -#include "shader/prog_instruction.h" #include "shader/prog_parameter.h" #include "shader/prog_print.h" @@ -49,8 +34,6 @@ #include "r300_state.h" #include "radeon_nqssadce.h" -#include "radeon_program_alu.h" - static void reset_srcreg(struct prog_src_register* reg) { @@ -81,7 +64,7 @@ static struct prog_src_register shadow_ambient(struct gl_program *program, int t * \todo If/when r5xx uses the radeon_program architecture, this can probably * be reused. */ -static GLboolean transform_TEX( +GLboolean r300_transform_TEX( struct radeon_transform_context *t, struct prog_instruction* orig_inst, void* data) { @@ -246,231 +229,6 @@ static GLboolean transform_TEX( return GL_TRUE; } - -static void update_params(GLcontext *ctx, struct gl_fragment_program *fp) -{ - /* Ask Mesa nicely to fill in ParameterValues for us */ - if (fp->Base.Parameters) - _mesa_load_state_parameters(ctx, fp->Base.Parameters); -} - - -/** - * Transform the program to support fragment.position. - * - * Introduce a small fragment at the start of the program that will be - * the only code that directly reads the FRAG_ATTRIB_WPOS input. - * All other code pieces that reference that input will be rewritten - * to read from a newly allocated temporary. - * - */ -void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler) -{ - GLuint InputsRead = compiler->fp->Base.Base.InputsRead; - - if (!(InputsRead & FRAG_BIT_WPOS)) - return; - - static gl_state_index tokens[STATE_LENGTH] = { - STATE_INTERNAL, STATE_R300_WINDOW_DIMENSION, 0, 0, 0 - }; - struct prog_instruction *fpi; - GLuint window_index; - int i = 0; - GLuint tempregi = _mesa_find_free_register(compiler->program, PROGRAM_TEMPORARY); - - _mesa_insert_instructions(compiler->program, 0, 3); - fpi = compiler->program->Instructions; - - /* perspective divide */ - fpi[i].Opcode = OPCODE_RCP; - - fpi[i].DstReg.File = PROGRAM_TEMPORARY; - fpi[i].DstReg.Index = tempregi; - fpi[i].DstReg.WriteMask = WRITEMASK_W; - fpi[i].DstReg.CondMask = COND_TR; - - fpi[i].SrcReg[0].File = PROGRAM_INPUT; - fpi[i].SrcReg[0].Index = FRAG_ATTRIB_WPOS; - fpi[i].SrcReg[0].Swizzle = SWIZZLE_WWWW; - i++; - - fpi[i].Opcode = OPCODE_MUL; - - fpi[i].DstReg.File = PROGRAM_TEMPORARY; - fpi[i].DstReg.Index = tempregi; - fpi[i].DstReg.WriteMask = WRITEMASK_XYZ; - fpi[i].DstReg.CondMask = COND_TR; - - fpi[i].SrcReg[0].File = PROGRAM_INPUT; - fpi[i].SrcReg[0].Index = FRAG_ATTRIB_WPOS; - fpi[i].SrcReg[0].Swizzle = SWIZZLE_XYZW; - - fpi[i].SrcReg[1].File = PROGRAM_TEMPORARY; - fpi[i].SrcReg[1].Index = tempregi; - fpi[i].SrcReg[1].Swizzle = SWIZZLE_WWWW; - i++; - - /* viewport transformation */ - window_index = _mesa_add_state_reference(compiler->program->Parameters, tokens); - - fpi[i].Opcode = OPCODE_MAD; - - fpi[i].DstReg.File = PROGRAM_TEMPORARY; - fpi[i].DstReg.Index = tempregi; - fpi[i].DstReg.WriteMask = WRITEMASK_XYZ; - fpi[i].DstReg.CondMask = COND_TR; - - fpi[i].SrcReg[0].File = PROGRAM_TEMPORARY; - fpi[i].SrcReg[0].Index = tempregi; - fpi[i].SrcReg[0].Swizzle = - MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ZERO); - - fpi[i].SrcReg[1].File = PROGRAM_STATE_VAR; - fpi[i].SrcReg[1].Index = window_index; - fpi[i].SrcReg[1].Swizzle = - MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ZERO); - - fpi[i].SrcReg[2].File = PROGRAM_STATE_VAR; - fpi[i].SrcReg[2].Index = window_index; - fpi[i].SrcReg[2].Swizzle = - MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ZERO); - i++; - - for (; i < compiler->program->NumInstructions; ++i) { - int reg; - for (reg = 0; reg < 3; reg++) { - if (fpi[i].SrcReg[reg].File == PROGRAM_INPUT && - fpi[i].SrcReg[reg].Index == FRAG_ATTRIB_WPOS) { - fpi[i].SrcReg[reg].File = PROGRAM_TEMPORARY; - fpi[i].SrcReg[reg].Index = tempregi; - } - } - } -} - - -static void nqssadce_init(struct nqssadce_state* s) -{ - s->Outputs[FRAG_RESULT_COLOR].Sourced = WRITEMASK_XYZW; - s->Outputs[FRAG_RESULT_DEPTH].Sourced = WRITEMASK_W; -} - - -static GLuint build_dtm(GLuint depthmode) -{ - switch(depthmode) { - default: - case GL_LUMINANCE: return 0; - case GL_INTENSITY: return 1; - case GL_ALPHA: return 2; - } -} - -static GLuint build_func(GLuint comparefunc) -{ - return comparefunc - GL_NEVER; -} - - -/** - * Collect all external state that is relevant for compiling the given - * fragment program. - */ -static void build_state( - r300ContextPtr r300, - struct r300_fragment_program *fp, - struct r300_fragment_program_external_state *state) -{ - int unit; - - _mesa_bzero(state, sizeof(*state)); - - for(unit = 0; unit < 16; ++unit) { - if (fp->Base.Base.ShadowSamplers & (1 << unit)) { - struct gl_texture_object* tex = r300->radeon.glCtx->Texture.Unit[unit]._Current; - - state->unit[unit].depth_texture_mode = build_dtm(tex->DepthMode); - state->unit[unit].texture_compare_func = build_func(tex->CompareFunc); - } - } -} - - -void r300TranslateFragmentShader(GLcontext *ctx, struct gl_fragment_program *fp) -{ - r300ContextPtr r300 = R300_CONTEXT(ctx); - struct r300_fragment_program *r300_fp = (struct r300_fragment_program *)fp; - struct r300_fragment_program_external_state state; - - build_state(r300, r300_fp, &state); - if (_mesa_memcmp(&r300_fp->state, &state, sizeof(state))) { - /* TODO: cache compiled programs */ - r300_fp->translated = GL_FALSE; - _mesa_memcpy(&r300_fp->state, &state, sizeof(state)); - } - - if (!r300_fp->translated) { - struct r300_fragment_program_compiler compiler; - - compiler.r300 = r300; - compiler.fp = r300_fp; - compiler.code = &r300_fp->code; - compiler.program = _mesa_clone_program(ctx, &fp->Base); - - if (RADEON_DEBUG & DEBUG_PIXEL) { - _mesa_printf("Fragment Program: Initial program:\n"); - _mesa_print_program(compiler.program); - } - - insert_WPOS_trailer(&compiler); - - struct radeon_program_transformation transformations[] = { - { &transform_TEX, &compiler }, - { &radeonTransformALU, 0 }, - { &radeonTransformTrigSimple, 0 } - }; - radeonLocalTransform(ctx, compiler.program, 3, transformations); - - if (RADEON_DEBUG & DEBUG_PIXEL) { - _mesa_printf("Fragment Program: After native rewrite:\n"); - _mesa_print_program(compiler.program); - } - - struct radeon_nqssadce_descr nqssadce = { - .Init = &nqssadce_init, - .IsNativeSwizzle = &r300FPIsNativeSwizzle, - .BuildSwizzle = &r300FPBuildSwizzle, - .RewriteDepthOut = GL_TRUE - }; - radeonNqssaDce(ctx, compiler.program, &nqssadce); - - if (RADEON_DEBUG & DEBUG_PIXEL) { - _mesa_printf("Compiler: after NqSSA-DCE:\n"); - _mesa_print_program(compiler.program); - } - - if (!r300->vtbl.FragmentProgramEmit(&compiler)) - r300_fp->error = GL_TRUE; - - /* Subtle: Rescue any parameters that have been added during transformations */ - _mesa_free_parameter_list(fp->Base.Parameters); - fp->Base.Parameters = compiler.program->Parameters; - compiler.program->Parameters = 0; - - _mesa_reference_program(ctx, &compiler.program, NULL); - - r300_fp->translated = GL_TRUE; - - r300UpdateStateParameters(ctx, _NEW_PROGRAM); - - if (r300_fp->error || (RADEON_DEBUG & DEBUG_PIXEL)) - r300->vtbl.FragmentProgramDump(&r300_fp->code); - } - - update_params(ctx, fp); -} - /* just some random things... */ void r300FragmentProgramDump(union rX00_fragment_program_code *c) { |