Framebuffer attachments can be specified through FramebufferTexture* calls. Upon specifying a depth (or stencil) framebuffer attachment that internally reuses a texture, the cube map face of the new attachment would not be updated (defaulting to TEXTURE_CUBE_MAP_POSITIVE_X). Fix this issue by actually updating the CubeMapFace field.
This bug manifested itself in BindFramebuffer calls performed on framebuffers whose stencil attachments internally reused a depth texture. When binding a framebuffer, we walk through the framebuffer's attachments and update each one's corresponding gl_renderbuffer. Since the framebuffer's depth and stencil attachments may share a gl_renderbuffer and the walk visits the stencil attachment after the depth attachment, the uninitialized CubeMapFace forced rendering to TEXTURE_CUBE_MAP_POSITIVE_X. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77662 Signed-off-by: Nanley Chery <nanley.g.ch...@intel.com> Cc: "12.0 13.0" <mesa-sta...@lists.freedesktop.org> --- This piglit patch will help catch this error in the future: https://lists.freedesktop.org/archives/piglit/2016-November/021480.html src/mesa/main/fbobject.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c index 9204606..64c4ab5 100644 --- a/src/mesa/main/fbobject.c +++ b/src/mesa/main/fbobject.c @@ -2850,6 +2850,7 @@ reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb, dst_att->Type = src_att->Type; dst_att->Complete = src_att->Complete; dst_att->TextureLevel = src_att->TextureLevel; + dst_att->CubeMapFace = src_att->CubeMapFace; dst_att->Zoffset = src_att->Zoffset; dst_att->Layered = src_att->Layered; } -- 2.10.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
