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gallium/u_blitter: fix stencil-only blits

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NOTE: This is a candidate for the stable branches.
(cherry picked from commit 61706915a3)
This commit is contained in:
Marek Olšák 2012-09-08 15:30:24 +02:00
parent e81717e9e7
commit 27e056ff15
1 changed files with 15 additions and 0 deletions
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15
src/gallium/auxiliary/util/u_blitter.c
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@ -1213,6 +1213,21 @@ void util_blitter_copy_texture_view(struct blitter_context *blitter,
pipe->bind_fragment_sampler_states(pipe, 2, samplers);
pipe_sampler_view_reference(&views[1], NULL);
} else if (blit_stencil) {
/* Set a stencil-only sampler view for it not to sample depth instead. */
struct pipe_sampler_view templ;
struct pipe_sampler_view *view;
templ = *src;
templ.format = util_format_stencil_only(templ.format);
assert(templ.format != PIPE_FORMAT_NONE);
view = pipe->create_sampler_view(pipe, src->texture, &templ);
pipe->set_fragment_sampler_views(pipe, 1, &view);
pipe->bind_fragment_sampler_states(pipe, 1, &ctx->sampler_state);
pipe_sampler_view_reference(&view, NULL);
} else {
pipe->set_fragment_sampler_views(pipe, 1, &src);
pipe->bind_fragment_sampler_states(pipe, 1, &ctx->sampler_state);