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panfrost: Fix blend_cso if nr_cbufs == 0

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Fixes: 46396af1ec ("panfrost: Refactor blend infrastructure")

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-07-15 07:08:15 -07:00
parent 318d641cd9
commit f8e2219b08
1 changed files with 6 additions and 3 deletions
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9
src/gallium/drivers/panfrost/pan_blend_cso.c
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@ -206,10 +206,13 @@ panfrost_blend_constant(float *out, float *in, unsigned mask)
struct panfrost_blend_final
panfrost_get_blend_for_context(struct panfrost_context *ctx, unsigned rti)
{
/* Grab the format */
/* Grab the format, falling back gracefully if called invalidly (which
* has to happen for no-color-attachment FBOs, for instance) */
struct pipe_framebuffer_state *fb = &ctx->pipe_framebuffer;
assert(fb->nr_cbufs > rti);
enum pipe_format fmt = fb->cbufs[rti]->format;
enum pipe_format fmt = PIPE_FORMAT_R8G8B8A8_UNORM;
if (fb->nr_cbufs > rti)
fmt = fb->cbufs[rti]->format;
/* Grab the blend state */
struct panfrost_blend_state *blend = ctx->blend;