Mesa (master): r300/compiler: add full viewport transformation support in WPOS codegen
Corbin Simpson
csimpson at kemper.freedesktop.org
Wed Jan 6 20:49:32 UTC 2010
Module: Mesa
Branch: master
Commit: dc7f309f9c4562e367bb18a2eb3d1dcf67003cad
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=dc7f309f9c4562e367bb18a2eb3d1dcf67003cad
Author: Marek Olšák <maraeo at gmail.com>
Date: Thu Dec 24 13:31:27 2009 +0100
r300/compiler: add full viewport transformation support in WPOS codegen
---
src/mesa/drivers/dri/r300/compiler/radeon_code.h | 4 +++-
.../drivers/dri/r300/compiler/radeon_compiler.c | 13 ++++++++++---
.../drivers/dri/r300/compiler/radeon_compiler.h | 3 ++-
src/mesa/drivers/dri/r300/r300_fragprog_common.c | 2 +-
4 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_code.h b/src/mesa/drivers/dri/r300/compiler/radeon_code.h
index 902b7cf..6d979bb 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_code.h
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_code.h
@@ -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 {
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
index 41ea23e..272f907 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
@@ -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;
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
index 87a732c..731adc1 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.h
@@ -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;
diff --git a/src/mesa/drivers/dri/r300/r300_fragprog_common.c b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
index 267ee81..2933d31 100644
--- a/src/mesa/drivers/dri/r300/r300_fragprog_common.c
+++ b/src/mesa/drivers/dri/r300/r300_fragprog_common.c
@@ -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);
}
/**
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