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[156/906] fix a crash that could happens when using at least 2 gl context and when closing a window on linux

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Julien Isorce 2008-08-13 17:16:17 +02:00 committed by Tim-Philipp Müller
parent 52a646f240
commit e6db0628e8
1 changed files with 19 additions and 2 deletions
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17
gst-libs/gst/gl/gstgldisplay.c
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@ -253,6 +253,19 @@ gst_gl_display_init (GstGLDisplay *display, GstGLDisplayClass *klass)
" gl_FragColor = vec4(r, g, b, 1.0);\n"
"}\n";
//it works on nvidia+linux but
//there is a bug on ATI+win32 (I think only ATI)
//and the follwing 3 lines:
//" y=texture2DRect(Ytex,nxy).r;\n"
//" u=texture2DRect(Utex,nxy*0.5).r;\n"
//" v=texture2DRect(Vtex,nxy*0.5).r;\n"
//has to be replaced by :
//" y=texture2DRect(Ytex,nxy0.5).r;\n"
//" u=texture2DRect(Utex,nxy).r;\n"
//" v=texture2DRect(Vtex,nxy*0.5).r;\n"
//
//so we have to set a display->hardware (ATI/ NVIDIA)
//and check it etc...
display->text_shader_upload_I420_YV12 =
"#extension GL_ARB_texture_rectangle : enable\n"
"uniform sampler2DRect Ytex,Utex,Vtex;\n"
@ -2410,6 +2423,10 @@ gst_gl_display_thread_do_upload_fill (GstGLDisplay *display)
offsetU = 1;
offsetV = 2;
break;
//it works on ati+win32 but we have to use the same offset as
//I420 on nvidia + linux (I mean offsetU = 1; offsetV = 2;)
//So we have to set a display->hardware (ATI o/ NVIDIA) and
//etc...
case GST_VIDEO_FORMAT_YV12:
offsetU = 2;
offsetV = 1;