H. Verbeet : wined3d: Don' t overwrite the position y offset in ARB vertex programs.

Alexandre Julliard julliard at wine.codeweavers.com
Wed Sep 27 03:46:06 CDT 2006

Module: wine
Branch: master
Commit: 5bc0e91ddfb5261ab588ef9df7bd72e90750a692
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=5bc0e91ddfb5261ab588ef9df7bd72e90750a692

Author: H. Verbeet <hverbeet at gmail.com>
Date:   Tue Sep 26 20:31:36 2006 +0200

wined3d: Don't overwrite the position y offset in ARB vertex programs.


 dlls/wined3d/vertexshader.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/dlls/wined3d/vertexshader.c b/dlls/wined3d/vertexshader.c
index 2d7ab58..19eb21c 100644
--- a/dlls/wined3d/vertexshader.c
+++ b/dlls/wined3d/vertexshader.c
@@ -786,19 +786,20 @@ #endif
         if (reg_maps->fog)
             shader_addline(&buffer, "MAX result.fogcoord, TMP_FOG, 0.0;\n");
-        shader_addline(&buffer, "MOV result.position, TMP_OUT;\n");
         /* Write the final position.
          * OpenGL coordinates specify the center of the pixel while d3d coords specify
          * the corner. The offsets are stored in the 2nd row of the projection matrix,
          * the x offset in z and the y offset in w. Add them to the resulting position
-        shader_addline(&buffer, "ADD result.position.x, TMP_OUT.x, posFixup.z;\n");
-        shader_addline(&buffer, "ADD result.position.y, TMP_OUT.y, posFixup.w;\n");
+        shader_addline(&buffer, "ADD TMP_OUT.x, TMP_OUT.x, posFixup.z;\n");
+        shader_addline(&buffer, "ADD TMP_OUT.y, TMP_OUT.y, posFixup.w;\n");
         /* Account for any inverted textures (render to texture case) by reversing the y coordinate
          *  (this is handled in drawPrim() when it sets the MODELVIEW and PROJECTION matrices)
-        shader_addline(&buffer, "MUL result.position.y, TMP_OUT.y, posFixup.y;\n");
+        shader_addline(&buffer, "MUL TMP_OUT.y, TMP_OUT.y, posFixup.y;\n");
+        shader_addline(&buffer, "MOV result.position, TMP_OUT;\n");
         shader_addline(&buffer, "END\n\0"); 

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