Exempt user bitmaps from texture detail culling#7617
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Goober5000
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Looks fine to my limited graphics understanding
At texture detail below maximum, opengl_create_texture() culls texture dimensions on upload, but user bitmaps are streaming surfaces (streamed animations, video) whose frames are updated through gr_update_texture() with the bitmap's own dimensions. Once culled, the glTexSubImage3D update exceeds the texture's actual size, so OpenGL rejects it with GL_INVALID_VALUE and the animation silently freezes on its first, downsampled frame. Culling them also saves nothing, since full-size frame data is streamed every frame regardless. Also assert in gr_opengl_update_texture() that the update dimensions match the texture, so any future mismatch of this kind is caught in debug builds instead of failing silently. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
gr_opengl_tcache_set() leaves the previous binding active when it fails, so the glTexParameteri calls that follow would modify the filter state of an unrelated texture. Only set the parameter when the volume texture actually bound. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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At texture detail below maximum, opengl_create_texture() culls texture
dimensions on upload, but user bitmaps are streaming surfaces
(streamed animations, video) whose frames are updated through
gr_update_texture() with the bitmap's own dimensions. Once culled, the
glTexSubImage3D update exceeds the texture's actual size, so OpenGL
rejects it with GL_INVALID_VALUE and the animation silently freezes on
its first, downsampled frame. Culling them also saves nothing, since
full-size frame data is streamed every frame regardless.
Also assert in gr_opengl_update_texture() that the update dimensions
match the texture, so any future mismatch of this kind is caught in
debug builds instead of failing silently.
And add a check for texture bind results in gr_opengl_tcache_set().