Fix an issue where RGBA videos would flicker.

[nageru] / mixer.cpp

diff --git a/mixer.cpp b/mixer.cpp
index 3a14a757431a88b2924a3430dcbf922fe1b3e73c..c21ac95943bcbbaa7a6b97e4def90bf6d70770ea 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -212,7 +212,9 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
        check_error();
 
        // This nearly always should be true.
-       global_flags.can_disable_srgb_decoder = epoxy_has_gl_extension("GL_EXT_texture_sRGB_decode");
+       global_flags.can_disable_srgb_decoder =
+               epoxy_has_gl_extension("GL_EXT_texture_sRGB_decode") &&
+               epoxy_has_gl_extension("GL_ARB_sampler_objects");
 
        // Since we allow non-bouncing 4:2:2 YCbCrInputs, effective subpixel precision
        // will be halved when sampling them, and we need to compensate here.