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r300/compiler: add full viewport transformation support in WPOS codegen

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This commit is contained in:
Marek Olšák 2009-12-24 13:31:27 +01:00 • committed by Corbin Simpson
parent ddfc4e31ad
commit dc7f309f9c
4 changed files with 16 additions and 6 deletions
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4
src/mesa/drivers/dri/r300/compiler/radeon_code.h
View file

@ -59,7 +59,9 @@ enum {
RC_STATE_SHADOW_AMBIENT = 0,
RC_STATE_R300_WINDOW_DIMENSION,
RC_STATE_R300_TEXRECT_FACTOR
RC_STATE_R300_TEXRECT_FACTOR,
RC_STATE_R300_VIEWPORT_SCALE,
RC_STATE_R300_VIEWPORT_OFFSET
};
struct rc_constant {

13
src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
View file

@ -229,7 +229,8 @@ void rc_copy_output(struct radeon_compiler * c, unsigned output, unsigned dup_ou
/**
* Introduce standard code fragment to deal with fragment.position.
*/
void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input)
void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input,
int full_vtransform)
{
unsigned tempregi = rc_find_free_temporary(c);
struct rc_instruction * inst_rcp;
@ -279,13 +280,19 @@ void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsig
inst_mad->U.I.SrcReg[0].Swizzle = RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_ZERO);
inst_mad->U.I.SrcReg[1].File = RC_FILE_CONSTANT;
inst_mad->U.I.SrcReg[1].Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_R300_WINDOW_DIMENSION, 0);
inst_mad->U.I.SrcReg[1].Swizzle = RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_ZERO);
inst_mad->U.I.SrcReg[2].File = RC_FILE_CONSTANT;
inst_mad->U.I.SrcReg[2].Index = inst_mad->U.I.SrcReg[1].Index;
inst_mad->U.I.SrcReg[2].Swizzle = RC_MAKE_SWIZZLE(RC_SWIZZLE_X, RC_SWIZZLE_Y, RC_SWIZZLE_Z, RC_SWIZZLE_ZERO);
if (full_vtransform) {
inst_mad->U.I.SrcReg[1].Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_R300_VIEWPORT_SCALE, 0);
inst_mad->U.I.SrcReg[2].Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_R300_VIEWPORT_OFFSET, 0);
} else {
inst_mad->U.I.SrcReg[1].Index =
inst_mad->U.I.SrcReg[2].Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_R300_WINDOW_DIMENSION, 0);
}
for (inst = inst_mad->Next; inst != &c->Program.Instructions; inst = inst->Next) {
const struct rc_opcode_info * opcode = rc_get_opcode_info(inst->U.I.Opcode);
unsigned i;

3
src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
View file

@ -73,7 +73,8 @@ void rc_calculate_inputs_outputs(struct radeon_compiler * c);
void rc_move_input(struct radeon_compiler * c, unsigned input, struct rc_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);
void rc_transform_fragment_wpos(struct radeon_compiler * c, unsigned wpos, unsigned new_input,
int full_vtransform);
struct r300_fragment_program_compiler {
struct radeon_compiler Base;

2
src/mesa/drivers/dri/r300/r300_fragprog_common.c
View file

@ -120,7 +120,7 @@ static void insert_WPOS_trailer(struct r300_fragment_program_compiler *compiler,
return;
}
rc_transform_fragment_wpos(&compiler->Base, FRAG_ATTRIB_WPOS, fp->wpos_attr);
rc_transform_fragment_wpos(&compiler->Base, FRAG_ATTRIB_WPOS, fp->wpos_attr, GL_FALSE);
}
/**