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st/mesa: require RGBA2, RGB4, and RGBA4 to be renderable

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If the driver does not support rendering to these formats but does
support texturing, we can end up in incompatibilities between textures
and renderbuffers that are then copied to.

Fixes KHR-GL45.copy_image.functional on nvc0

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: 19.0 <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Karol Herbst 2019-01-16 15:17:31 +01:00 • committed by Ilia Mirkin
parent 6010d7b8e8
commit cbd1ad6165
1 changed files with 2 additions and 0 deletions
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2
src/mesa/state_tracker/st_format.c
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@ -2356,6 +2356,8 @@ st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
bindings |= PIPE_BIND_DEPTH_STENCIL;
else if (is_renderbuffer || internalFormat == 3 || internalFormat == 4 ||
internalFormat == GL_RGB || internalFormat == GL_RGBA ||
internalFormat == GL_RGBA2 ||
internalFormat == GL_RGB4 || internalFormat == GL_RGBA4 ||
internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
internalFormat == GL_BGRA ||
internalFormat == GL_RGB16F ||