From: Henri Verbeet <hverbeet@gmail.com>
Date: Thu, 22 Jul 2010 15:10:11 +0000 (-0400)
Subject: r600: Flip point sprite coordinates when rendering to an FBO.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2fdff50999825f5698f1f7f88565162f39227b2f;p=mesa.git

r600: Flip point sprite coordinates when rendering to an FBO.

This supersedes http://lists.freedesktop.org/archives/mesa-dev/2010-July/001442.html.
---

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);