Hi, I am looking at Immutable textures usage with image data of BGRA format. According to Texture storage extension spec [1] if either EXT_texture_format_BGRA8888 or APPLE_texture_format_BGRA8888 are supported, glTexStorage2DEXT must accept BGRA8_EXT as internal format. EXT_texture_format_BGRA8888 doesn't mention anything about BGRA8_EXT support. However, APPLE_texture_format_BGRA8888[3] mentions supports for BGRA8_EXT as an internal format with glTexStorage2DEXT and GL_BGRA_EXT as an external format for TexImage2D and TexSubImage2D
glTexStorage2D is part of core in GLES3 but doesn't mention support for BGRA8 as an internal format. Even APPLE_texture_format_BGRA8888 mentions that BGRA8_EXT is not accepted as an <internalformat> parameter to TexImage* when the GL is OpenGL ES 3.0. With GLES3.0, I am wondering if their is any way to use image data in BGRA format and Immutable textures without swizzling the data to RGBA format ? Relevant Discussion in Chromium side can be found here: https://code.google.com/p/chromium/issues/detail?id=407034 Thanks for any pointers. Br, Kalyan 1)https://www.khronos.org/registry/gles/extensions/EXT/EXT_texture_storage.txt 2)https://www.khronos.org/registry/gles/extensions/EXT/EXT_texture_format_BGRA8888.txt 3)https://www.khronos.org/registry/gles/extensions/APPLE/APPLE_texture_format_BGRA8888.txt _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
