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mesa: add gl_coontext::ForceIntegerTexNearest

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Some applications incorrectly use GL_LINEAR* values for integers texture.
copyimage.c already implemented a tolerance for such app in prepare_target_err.

This commit adds a boolean that will treat GL_LINEAR* filters as
GL_NEAREST for integer textures.

CC: 20.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4647>
This commit is contained in:
Pierre-Eric Pelloux-Prayer
2020-04-20 14:17:53 +02:00
parent 90d9f9a37e
commit 12fb7d7008
6 changed files with 52 additions and 19 deletions
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9
src/mesa/state_tracker/st_atom_sampler.c
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@@ -114,9 +114,14 @@ st_convert_sampler(const struct st_context *st,
sampler->wrap_t = gl_wrap_xlate(msamp->WrapT);
sampler->wrap_r = gl_wrap_xlate(msamp->WrapR);
sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
if (texobj->_IsIntegerFormat && st->ctx->Const.ForceIntegerTexNearest) {
sampler->min_img_filter = gl_filter_to_img_filter(GL_NEAREST);
sampler->mag_img_filter = gl_filter_to_img_filter(GL_NEAREST);
} else {
sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
}
sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter);
sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
sampler->normalized_coords = 1;