multi-texture-format: Always use the tex coords of the first plane
The texture coordinates of all planes should be the same in theory so using the coordinates of the first plane works. The reason for this change is that Cogl somehow doesn't manage to get us the correct coordinates for the 3rd plane in some circumstances. This is really a workaround but not wrong in any way. Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3176 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3469>
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@ -61,22 +61,22 @@ static const char rgba_shader[] =
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static const char y_xuxv_shader[] =
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"vec4 yuva = vec4(0.0, 0.0, 0.0, cogl_color_in.a); \n"
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"yuva.x = texture2D(cogl_sampler0, cogl_tex_coord0_in.st).x; \n"
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"yuva.yz = texture2D(cogl_sampler1, cogl_tex_coord1_in.st).ga; \n"
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"yuva.yz = texture2D(cogl_sampler1, cogl_tex_coord0_in.st).ga; \n"
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"cogl_color_out = yuv_to_rgb(yuva); \n";
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/* Shader for 1 Y-plane and 1 UV-plane */
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static const char y_uv_shader[] =
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"vec4 yuva = vec4(0.0, 0.0, 0.0, cogl_color_in.a); \n"
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"yuva.x = texture2D(cogl_sampler0, cogl_tex_coord0_in.st).x; \n"
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"yuva.yz = texture2D(cogl_sampler1, cogl_tex_coord1_in.st).rg; \n"
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"yuva.yz = texture2D(cogl_sampler1, cogl_tex_coord0_in.st).rg; \n"
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"cogl_color_out = yuv_to_rgb(yuva); \n";
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/* Shader for 1 Y-plane, 1 U-plane and 1 V-plane */
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static const char y_u_v_shader[] =
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"vec4 yuva = vec4(0.0, 0.0, 0.0, cogl_color_in.a); \n"
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"yuva.x = texture2D(cogl_sampler0, cogl_tex_coord0_in.st).x; \n"
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"yuva.y = texture2D(cogl_sampler1, cogl_tex_coord1_in.st).x; \n"
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"yuva.z = texture2D(cogl_sampler2, cogl_tex_coord2_in.st).x; \n"
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"yuva.y = texture2D(cogl_sampler1, cogl_tex_coord0_in.st).x; \n"
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"yuva.z = texture2D(cogl_sampler2, cogl_tex_coord0_in.st).x; \n"
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"cogl_color_out = yuv_to_rgb(yuva); \n";
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typedef struct _MetaMultiTextureFormatFullInfo
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