svga: adjust triangle rasterization offset

Fixes minor sub-pixel positioning error in some apps.

diff --git a/src/gallium/drivers/svga/svga_state_framebuffer.c b/src/gallium/drivers/svga/svga_state_framebuffer.c
index cdadb20..8ad6ab4 100644 (file)
--- a/src/gallium/drivers/svga/svga_state_framebuffer.c
+++ b/src/gallium/drivers/svga/svga_state_framebuffer.c
@@ -296,7 +296,7 @@ static int emit_viewport( struct svga_context *svga,
          break;
       case PIPE_PRIM_POINTS:
       case PIPE_PRIM_TRIANGLES:
-         adjust_x = -0.375;
+         adjust_x = -0.25;
          adjust_y = -0.5;
          break;
       }