diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/r500_fragprog.c')
-rw-r--r-- | src/mesa/drivers/dri/r300/r500_fragprog.c | 107 |
1 files changed, 5 insertions, 102 deletions
diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c index 3b45eee537..eb93648e2f 100644 --- a/src/mesa/drivers/dri/r300/r500_fragprog.c +++ b/src/mesa/drivers/dri/r300/r500_fragprog.c @@ -29,6 +29,7 @@ #include "radeon_nqssadce.h" #include "radeon_program_alu.h" +#include "r300_fragprog.h" static void reset_srcreg(struct prog_src_register* reg) @@ -197,110 +198,13 @@ static void update_params(GLcontext *ctx, struct gl_fragment_program *fp) } -/** - * 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. - * - * \todo if/when r5xx supports the radeon_program architecture, this is a - * likely candidate for code sharing. - */ -static 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 GLboolean is_native_swizzle(GLuint opcode, struct prog_src_register reg) +GLboolean r500FPIsNativeSwizzle(GLuint opcode, struct prog_src_register reg) { GLuint relevant; int i; @@ -366,8 +270,7 @@ static GLboolean is_native_swizzle(GLuint opcode, struct prog_src_register reg) * The only thing we *cannot* do in an ALU instruction is per-component * negation. Therefore, we split the MOV into two instructions when necessary. */ -static void nqssadce_build_swizzle(struct nqssadce_state *s, - struct prog_dst_register dst, struct prog_src_register src) +void r500FPBuildSwizzle(struct nqssadce_state *s, struct prog_dst_register dst, struct prog_src_register src) { struct prog_instruction *inst; GLuint negatebase[2] = { 0, 0 }; @@ -478,8 +381,8 @@ void r500TranslateFragmentShader(GLcontext *ctx, struct gl_fragment_program *fp) struct radeon_nqssadce_descr nqssadce = { .Init = &nqssadce_init, - .IsNativeSwizzle = &is_native_swizzle, - .BuildSwizzle = &nqssadce_build_swizzle, + .IsNativeSwizzle = &r500FPIsNativeSwizzle, + .BuildSwizzle = &r500FPBuildSwizzle, .RewriteDepthOut = GL_TRUE }; radeonNqssaDce(ctx, compiler.program, &nqssadce); |