From: Ian Romanick <ian.d.roman...@intel.com>
Fixes failures in oglconform fbo mipmap.manual.color,
mipmap.manual.colorAndDepth, mipmap.automatic, and
mipmap.manualIterateTexTargets subtests.
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
Cc: "9.2" mesa-sta...@lists.freedesktop.org
---
src/mesa/drivers/common/meta.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index c62927c..69b06ed 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -704,9 +704,14 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
_mesa_LoadIdentity();
_mesa_MatrixMode(GL_PROJECTION);
_mesa_LoadIdentity();
- _mesa_Ortho(0.0, ctx->DrawBuffer->Width,
- 0.0, ctx->DrawBuffer->Height,
- -1.0, 1.0);
+
+ /* glOrtho with width = 0 or height = 0 generates GL_INVALID_VALUE.
+ * This can occur when there is no draw buffer.
+ */
+ if (ctx->DrawBuffer->Width != 0 && ctx->DrawBuffer->Height != 0)
+ _mesa_Ortho(0.0, ctx->DrawBuffer->Width,
+ 0.0, ctx->DrawBuffer->Height,
+ -1.0, 1.0);
}
if (state & MESA_META_CLIP) {
--
1.8.1.4
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