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svga: if we get nr_samples==1, store nr_samples=0 

We need to be more careful not to treat nr_samples=1 as an msaa surface.
This patch prevents us from errantly declaring an MSAA shader resource
with 1 sample.

No Piglit regressions, fixes the above-described errors.

Reviewed-by: Neha Bhende <bhenden@vmware.com>
This commit is contained in:
Brian Paul 2017-08-03 10:54:18 -06:00
parent 3c71c42827
commit 3e39abf6a0
1 changed files with 7 additions and 4 deletions
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11
src/gallium/drivers/svga/svga_resource_texture.c
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@ -985,13 +985,16 @@ svga_texture_create(struct pipe_screen *screen,
tex->key.arraySize = 1;
tex->key.numFaces = 1;
/* single sample texture can be treated as non-multisamples texture */
tex->key.sampleCount = template->nr_samples > 1 ? template->nr_samples : 0;
if (template->nr_samples > 1) {
/* nr_samples=1 must be treated as a non-multisample texture */
if (tex->b.b.nr_samples == 1) {
tex->b.b.nr_samples = 0;
}
else if (tex->b.b.nr_samples > 1) {
tex->key.flags |= SVGA3D_SURFACE_MASKABLE_ANTIALIAS;
}
tex->key.sampleCount = tex->b.b.nr_samples;
if (svgascreen->sws->have_vgpu10) {
switch (template->target) {
case PIPE_TEXTURE_1D: