From: Ian Romanick <ian.d.roman...@intel.com>
There is no need to use pixel coordinates, and using NDC directly will
simplify the GLSL paths.
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/mesa/drivers/common/meta.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 3479eb1..1d870d2 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -4108,18 +4108,17 @@ decompress_texture_image(struct gl_context *ctx,
verts[3].tex);
/* setup vertex positions */
- verts[0].x = 0.0F;
- verts[0].y = 0.0F;
- verts[1].x = width;
- verts[1].y = 0.0F;
- verts[2].x = width;
- verts[2].y = height;
- verts[3].x = 0.0F;
- verts[3].y = height;
+ verts[0].x = -1.0F;
+ verts[0].y = -1.0F;
+ verts[1].x = 1.0F;
+ verts[1].y = -1.0F;
+ verts[2].x = 1.0F;
+ verts[2].y = 1.0F;
+ verts[3].x = -1.0F;
+ verts[3].y = 1.0F;
_mesa_MatrixMode(GL_PROJECTION);
_mesa_LoadIdentity();
- _mesa_Ortho(0.0, width, 0.0, height, -1.0, 1.0);
_mesa_set_viewport(ctx, 0, 0, 0, width, height);
/* upload new vertex data */
--
1.8.1.4
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