render/gles2: add support for some 24 and 16-bit formats
On little-endian, we can enable pixel formats which don't use gl_type = GL_UNSIGNED_BYTE. See [1]. [1]: https://afrantzis.com/pixel-format-guide/
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@ -32,6 +32,45 @@ static const struct wlr_gles2_pixel_format formats[] = {
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.gl_type = GL_UNSIGNED_BYTE,
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.has_alpha = true,
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},
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{
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.drm_format = DRM_FORMAT_BGR888,
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.gl_format = GL_RGB,
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.gl_type = GL_UNSIGNED_BYTE,
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.has_alpha = false,
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},
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#if WLR_LITTLE_ENDIAN
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{
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.drm_format = DRM_FORMAT_RGBX4444,
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.gl_format = GL_RGBA,
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.gl_type = GL_UNSIGNED_SHORT_4_4_4_4,
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.has_alpha = false,
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},
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{
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.drm_format = DRM_FORMAT_RGBA4444,
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.gl_format = GL_RGBA,
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.gl_type = GL_UNSIGNED_SHORT_4_4_4_4,
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.has_alpha = true,
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},
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{
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.drm_format = DRM_FORMAT_RGBX5551,
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.gl_format = GL_RGBA,
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.gl_type = GL_UNSIGNED_SHORT_5_5_5_1,
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.has_alpha = false,
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},
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{
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.drm_format = DRM_FORMAT_RGBA5551,
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.gl_format = GL_RGBA,
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.gl_type = GL_UNSIGNED_SHORT_5_5_5_1,
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.has_alpha = true,
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},
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{
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.drm_format = DRM_FORMAT_RGB565,
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.gl_format = GL_RGB,
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.gl_type = GL_UNSIGNED_SHORT_5_6_5,
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.has_alpha = false,
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},
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// TODO: EXT_texture_type_2_10_10_10_REV support
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#endif
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};
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// TODO: more pixel formats
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