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anv/genX: Solve the vkCreateGraphicsPipelines crash

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The crash is due to NULL pColorBlendState, which is legal if the
pipeline has rasterization disabled or if the subpass of the render pass
the pipeline is created against does not use any color attachments.

Test: Sample subpasses from LunarG can run without crash

Signed-off-by: Xu,Randy <randy.xu@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "17.0 13.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Xu,Randy 2017-03-18 19:20:17 +08:00 • committed by Tapani Pälli
parent e70e7cc7ff
commit 57595cb073
1 changed files with 2 additions and 2 deletions
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4
src/intel/vulkan/genX_pipeline.c
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@ -902,7 +902,7 @@ emit_cb_state(struct anv_pipeline *pipeline,
/* We can have at most 8 attachments */
assert(i < 8);
if (binding->index >= info->attachmentCount)
if (info == NULL || binding->index >= info->attachmentCount)
continue;
assert(binding->binding == 0);
@ -1423,7 +1423,7 @@ emit_3dstate_ps(struct anv_pipeline *pipeline,
* source blend factors.
*/
bool dual_src_blend = false;
if (wm_prog_data->dual_src_blend) {
if (wm_prog_data->dual_src_blend && blend) {
for (uint32_t i = 0; i < blend->attachmentCount; i++) {
const VkPipelineColorBlendAttachmentState *bstate =
&blend->pAttachments[i];