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-rw-r--r--src/mesa/state_tracker/st_extensions.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index d00ee83c055..c2fe9551a31 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -73,7 +73,8 @@ static int _clamp(int a, int min, int max)
* Note that we have to limit/clamp against Mesa's internal limits too.
*/
void st_init_limits(struct pipe_screen *screen,
- struct gl_constants *c, struct gl_extensions *extensions)
+ struct gl_constants *c, struct gl_extensions *extensions,
+ gl_api api)
{
int supported_irs;
unsigned sh;
@@ -417,8 +418,14 @@ void st_init_limits(struct pipe_screen *screen,
c->GLSLFrontFacingIsSysVal =
screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
- /* GL_ARB_get_program_binary */
- if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
+ /* GL_ARB_get_program_binary
+ *
+ * The QT framework has a bug in their shader program cache, which is built
+ * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
+ * we don't enable more than 1 binary format for compatibility profiles.
+ */
+ if (api != API_OPENGL_COMPAT &&
+ screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
c->NumProgramBinaryFormats = 1;
c->MaxAtomicBufferBindings =