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authorHenri Verbeet <[email protected]>2010-07-22 11:10:11 -0400
committerAlex Deucher <[email protected]>2010-07-22 11:10:11 -0400
commit2fdff50999825f5698f1f7f88565162f39227b2f (patch)
treecda497e55c3007b0cf048bfb3ff8906b88b8a0a1 /src/mesa/drivers/dri
parentc686ee0fa7e2298408259f5533b739c7d05c78b8 (diff)
r600: Flip point sprite coordinates when rendering to an FBO.
This supersedes http://lists.freedesktop.org/archives/mesa-dev/2010-July/001442.html.
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/r600/r700_fragprog.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_fragprog.c b/src/mesa/drivers/dri/r600/r700_fragprog.c
index bf17a977ce4..f9d84b6ed68 100644
--- a/src/mesa/drivers/dri/r600/r700_fragprog.c
+++ b/src/mesa/drivers/dri/r600/r700_fragprog.c
@@ -587,7 +587,9 @@ GLboolean r700SetupFragmentProgram(GLcontext * ctx)
SETfield(r700->SPI_INTERP_CONTROL_0.u32All, SPI_PNT_SPRITE_SEL_T, PNT_SPRITE_OVRD_Y_shift, PNT_SPRITE_OVRD_Y_mask);
SETfield(r700->SPI_INTERP_CONTROL_0.u32All, SPI_PNT_SPRITE_SEL_0, PNT_SPRITE_OVRD_Z_shift, PNT_SPRITE_OVRD_Z_mask);
SETfield(r700->SPI_INTERP_CONTROL_0.u32All, SPI_PNT_SPRITE_SEL_1, PNT_SPRITE_OVRD_W_shift, PNT_SPRITE_OVRD_W_mask);
- if(ctx->Point.SpriteOrigin == GL_LOWER_LEFT)
+ /* Like e.g. viewport and winding, point sprite coordinates are
+ * inverted when rendering to FBO. */
+ if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) == !ctx->DrawBuffer->Name)
SETbit(r700->SPI_INTERP_CONTROL_0.u32All, PNT_SPRITE_TOP_1_bit);
else
CLEARbit(r700->SPI_INTERP_CONTROL_0.u32All, PNT_SPRITE_TOP_1_bit);