aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorIlia Mirkin <[email protected]>2016-11-12 18:58:46 -0500
committerIlia Mirkin <[email protected]>2016-11-15 20:26:11 -0500
commit6364491a0ba4d97270ddfee223b4c2f79cc691f1 (patch)
tree76a5aa1aedc29f3412397b2be8cc3edcb76b7bb2
parenta2c1d58ddbd77692a1c07a3e7606f6472722a93c (diff)
swr: add support for upper-left fragcoord position
Fixes glsl-arb-fragment-coord-conventions. Signed-off-by: Ilia Mirkin <[email protected]> Reviewed-by: Tim Rowley <[email protected]>
-rw-r--r--src/gallium/drivers/swr/swr_shader.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/gallium/drivers/swr/swr_shader.cpp b/src/gallium/drivers/swr/swr_shader.cpp
index 38a916e272c..04637e506f8 100644
--- a/src/gallium/drivers/swr/swr_shader.cpp
+++ b/src/gallium/drivers/swr/swr_shader.cpp
@@ -480,8 +480,14 @@ BuilderSWR::CompileFS(struct swr_context *ctx, swr_jit_fs_key &key)
inputs[attrib][3] = wrap(VIMMED1(1.0f));
continue;
} else if (semantic_name == TGSI_SEMANTIC_POSITION) { // gl_FragCoord
- inputs[attrib][0] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vX, PixelPositions_center}, "vX"));
- inputs[attrib][1] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vY, PixelPositions_center}, "vY"));
+ if (swr_fs->info.base.properties[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER] ==
+ TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER) {
+ inputs[attrib][0] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vX, PixelPositions_center}, "vX"));
+ inputs[attrib][1] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vY, PixelPositions_center}, "vY"));
+ } else {
+ inputs[attrib][0] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vX, PixelPositions_UL}, "vX"));
+ inputs[attrib][1] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vY, PixelPositions_UL}, "vY"));
+ }
inputs[attrib][2] = wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vZ}, "vZ"));
inputs[attrib][3] =
wrap(LOAD(pPS, {0, SWR_PS_CONTEXT_vOneOverW, PixelPositions_center}, "vOneOverW"));