From: Ian Romanick <ian.d.roman...@intel.com>
Previously GL_FRAMEBUFFER was used. However, if GL_EXT_framebuffer_blit
is supported (note: it is supported by every Mesa driver), this is
*sometimes* an alias for GL_DRAW_FRAMEBUFFER (getters) and *sometimes*
an alias for *both* GL_DRAW_FRAMEBUFFER and GL_READ_FRAMEBUFFER
(setters). As a result, the code saved one binding but modified both.
If the bindings were different, the GL_READ_FRAMEBUFFER would be
incorrect on exit.
Fixes the piglit fbo-generatemipmap-versus-READ_FRAMEBUFFER test.
Ideally this function would use DSA functions and not modify the binding
at all. However, that would be a much more intrusive change because
_mesa_meta_bind_fbo_image would also need to be modified.
_mesa_meta_bind_fbo_image has a lot of callers. Much of this code is
about to get a major rework due to bug #92363, so I don't think it
matters too much. In fact, I discovered this bug while working on the
other bug. Le bon temps!
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
Cc: "10.6 11.0" <mesa-sta...@lists.freedesktop.org>
---
src/mesa/drivers/common/meta_generate_mipmap.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/mesa/drivers/common/meta_generate_mipmap.c
b/src/mesa/drivers/common/meta_generate_mipmap.c
index a9da0a2..ffd71b6 100644
--- a/src/mesa/drivers/common/meta_generate_mipmap.c
+++ b/src/mesa/drivers/common/meta_generate_mipmap.c
@@ -102,13 +102,13 @@ fallback_required(struct gl_context *ctx, GLenum target,
*/
if (!mipmap->FBO)
_mesa_GenFramebuffers(1, &mipmap->FBO);
- _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT, mipmap->FBO);
+ _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, mipmap->FBO);
- _mesa_meta_bind_fbo_image(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, baseImage,
0);
+ _mesa_meta_bind_fbo_image(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
baseImage, 0);
- status = _mesa_CheckFramebufferStatus(GL_FRAMEBUFFER_EXT);
+ status = _mesa_CheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
- _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT, fboSave);
+ _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER, fboSave);
if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_perf_debug(ctx, MESA_DEBUG_SEVERITY_HIGH,
--
2.1.0
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