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st/mesa: ask pipe driver to recreate derived internal resources when (re-)binding external textures 

Use the resource_changed callback to invalidate internal resources
derived from external textures when they are (re-)bound. This is needed
to comply with the requirement from the GL_OES_EGL_image_external
extension that a call to glBindTexture guarantees that all further
sampling will return values that correspond to the values in the
external texture at or after the time that glBindTexture was called.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Philipp Zabel 2017-01-19 15:05:41 +01:00 committed by Lucas Stach
parent 9bab714c61
commit 97de7e6586
1 changed files with 4 additions and 0 deletions
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4
src/mesa/state_tracker/st_atom_texture.c
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@ -91,6 +91,10 @@ update_single_texture(struct st_context *st,
stObj->prev_sRGBDecode = samp->sRGBDecode;
}
if (texObj->TargetIndex == TEXTURE_EXTERNAL_INDEX &&
stObj->pt->screen->resource_changed)
stObj->pt->screen->resource_changed(stObj->pt->screen, stObj->pt);
*sampler_view =
st_get_texture_sampler_view_from_stobj(st, stObj, samp, glsl_version);
return GL_TRUE;