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-rw-r--r--src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c70
-rw-r--r--src/mesa/drivers/dri/r300/compiler/radeon_compiler.c41
-rw-r--r--src/mesa/drivers/dri/r300/compiler/radeon_compiler.h1
3 files changed, 51 insertions, 61 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
index 38ee9575a32..c05b488645b 100644
--- a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
@@ -578,62 +578,6 @@ static GLboolean transform_source_conflicts(
return GL_TRUE;
}
-static void insert_wpos(struct gl_program *prog, GLuint temp_index, int tex_id)
-{
- struct prog_instruction *vpi;
-
- _mesa_insert_instructions(prog, prog->NumInstructions - 1, 2);
-
- vpi = &prog->Instructions[prog->NumInstructions - 3];
-
- vpi->Opcode = OPCODE_MOV;
-
- vpi->DstReg.File = PROGRAM_OUTPUT;
- vpi->DstReg.Index = VERT_RESULT_HPOS;
- vpi->DstReg.WriteMask = WRITEMASK_XYZW;
- vpi->DstReg.CondMask = COND_TR;
-
- vpi->SrcReg[0].File = PROGRAM_TEMPORARY;
- vpi->SrcReg[0].Index = temp_index;
- vpi->SrcReg[0].Swizzle = SWIZZLE_XYZW;
-
- ++vpi;
-
- vpi->Opcode = OPCODE_MOV;
-
- vpi->DstReg.File = PROGRAM_OUTPUT;
- vpi->DstReg.Index = VERT_RESULT_TEX0 + tex_id;
- vpi->DstReg.WriteMask = WRITEMASK_XYZW;
- vpi->DstReg.CondMask = COND_TR;
-
- vpi->SrcReg[0].File = PROGRAM_TEMPORARY;
- vpi->SrcReg[0].Index = temp_index;
- vpi->SrcReg[0].Swizzle = SWIZZLE_XYZW;
-
- ++vpi;
-
- vpi->Opcode = OPCODE_END;
-}
-
-static void pos_as_texcoord(struct gl_program *prog, int tex_id)
-{
- struct prog_instruction *vpi;
- GLuint tempregi = prog->NumTemporaries;
-
- prog->NumTemporaries++;
-
- for (vpi = prog->Instructions; vpi->Opcode != OPCODE_END; vpi++) {
- if (vpi->DstReg.File == PROGRAM_OUTPUT && vpi->DstReg.Index == VERT_RESULT_HPOS) {
- vpi->DstReg.File = PROGRAM_TEMPORARY;
- vpi->DstReg.Index = tempregi;
- }
- }
-
- insert_wpos(prog, tempregi, tex_id);
-
- prog->OutputsWritten |= 1 << (VERT_RESULT_TEX0 + tex_id);
-}
-
static void addArtificialOutputs(struct r300_vertex_program_compiler * compiler)
{
int i;
@@ -684,15 +628,19 @@ static GLboolean swizzleIsNative(GLuint opcode, struct prog_src_register reg)
void r3xx_compile_vertex_program(struct r300_vertex_program_compiler* compiler)
{
- if (compiler->state.WPosAttr != FRAG_ATTRIB_MAX) {
- pos_as_texcoord(compiler->program, compiler->state.WPosAttr - FRAG_ATTRIB_TEX0);
- }
-
rc_mesa_to_rc_program(&compiler->Base, compiler->program);
compiler->program = 0;
+ if (compiler->state.WPosAttr != FRAG_ATTRIB_MAX) {
+ rc_copy_output(&compiler->Base,
+ VERT_RESULT_HPOS,
+ compiler->state.WPosAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0);
+ }
+
if (compiler->state.FogAttr != FRAG_ATTRIB_MAX) {
- rc_move_output(&compiler->Base, VERT_RESULT_FOGC, compiler->state.FogAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0, WRITEMASK_X);
+ rc_move_output(&compiler->Base,
+ VERT_RESULT_FOGC,
+ compiler->state.FogAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0, WRITEMASK_X);
}
addArtificialOutputs(compiler);
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
index 6e7361d5686..da950d52894 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
@@ -149,6 +149,47 @@ void rc_move_output(struct radeon_compiler * c, unsigned output, unsigned new_ou
/**
+ * Rewrite the program such that a given output is duplicated.
+ */
+void rc_copy_output(struct radeon_compiler * c, unsigned output, unsigned dup_output)
+{
+ unsigned tempreg = rc_find_free_temporary(c);
+ struct rc_instruction * inst;
+
+ for(inst = c->Program.Instructions.Next; inst != &c->Program.Instructions; inst = inst->Next) {
+ const unsigned numdsts = _mesa_num_inst_dst_regs(inst->I.Opcode);
+
+ if (numdsts) {
+ if (inst->I.DstReg.File == PROGRAM_OUTPUT && inst->I.DstReg.Index == output) {
+ inst->I.DstReg.File = PROGRAM_TEMPORARY;
+ inst->I.DstReg.Index = tempreg;
+ }
+ }
+ }
+
+ inst = rc_insert_new_instruction(c, c->Program.Instructions.Prev);
+ inst->I.Opcode = OPCODE_MOV;
+ inst->I.DstReg.File = PROGRAM_OUTPUT;
+ inst->I.DstReg.Index = output;
+
+ inst->I.SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst->I.SrcReg[0].Index = tempreg;
+ inst->I.SrcReg[0].Swizzle = SWIZZLE_XYZW;
+
+ inst = rc_insert_new_instruction(c, c->Program.Instructions.Prev);
+ inst->I.Opcode = OPCODE_MOV;
+ inst->I.DstReg.File = PROGRAM_OUTPUT;
+ inst->I.DstReg.Index = dup_output;
+
+ inst->I.SrcReg[0].File = PROGRAM_TEMPORARY;
+ inst->I.SrcReg[0].Index = tempreg;
+ inst->I.SrcReg[0].Swizzle = SWIZZLE_XYZW;
+
+ c->Program.OutputsWritten |= 1 << dup_output;
+}
+
+
+/**
* Introduce standard code fragment to deal with fragment.position.
*/
void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input)
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
index 34f4240d534..a4ff2ca86ab 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
@@ -66,6 +66,7 @@ void rc_error(struct radeon_compiler * c, const char * fmt, ...);
void rc_move_input(struct radeon_compiler * c, unsigned input, struct prog_src_register new_input);
void rc_move_output(struct radeon_compiler * c, unsigned output, unsigned new_output, unsigned writemask);
+void rc_copy_output(struct radeon_compiler * c, unsigned output, unsigned dup_output);
void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input);
struct r300_fragment_program_compiler {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 07:05:01 +0000