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-rw-r--r--src/intel/vulkan/genX_pipeline.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index f641661db1b..d0dbe13f393 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -455,6 +455,10 @@ emit_rs_state(struct anv_pipeline *pipeline,
*/
#if GEN_GEN >= 8
raster.DXMultisampleRasterizationEnable = true;
+ /* NOTE: 3DSTATE_RASTER::ForcedSampleCount affects the BDW and SKL PMA fix
+ * computations. If we ever set this bit to a different value, they will
+ * need to be updated accordingly.
+ */
raster.ForcedSampleCount = FSC_NUMRASTSAMPLES_0;
raster.ForceMultisampling = false;
#else
@@ -664,6 +668,8 @@ emit_ds_state(struct anv_pipeline *pipeline,
* to make sure it's initialized to something useful.
*/
pipeline->writes_stencil = false;
+ pipeline->writes_depth = false;
+ pipeline->depth_test_enable = false;
memset(depth_stencil_dw, 0, sizeof(depth_stencil_dw));
return;
}
@@ -722,6 +728,9 @@ emit_ds_state(struct anv_pipeline *pipeline,
if (info->depthTestEnable && info->depthCompareOp == VK_COMPARE_OP_EQUAL)
depth_stencil.DepthBufferWriteEnable = false;
+ pipeline->writes_depth = depth_stencil.DepthBufferWriteEnable;
+ pipeline->depth_test_enable = depth_stencil.DepthTestEnable;
+
#if GEN_GEN <= 7
GENX(DEPTH_STENCIL_STATE_pack)(NULL, depth_stencil_dw, &depth_stencil);
#else
@@ -1443,6 +1452,38 @@ emit_3dstate_vf_topology(struct anv_pipeline *pipeline)
}
#endif
+static void
+compute_kill_pixel(struct anv_pipeline *pipeline,
+ const VkPipelineMultisampleStateCreateInfo *ms_info,
+ const struct anv_subpass *subpass)
+{
+ if (!anv_pipeline_has_stage(pipeline, MESA_SHADER_FRAGMENT)) {
+ pipeline->kill_pixel = false;
+ return;
+ }
+
+ const struct brw_wm_prog_data *wm_prog_data = get_wm_prog_data(pipeline);
+
+ /* This computes the KillPixel portion of the computation for whether or
+ * not we want to enable the PMA fix on gen8. It's given by this chunk of
+ * the giant formula:
+ *
+ * (3DSTATE_PS_EXTRA::PixelShaderKillsPixels ||
+ * 3DSTATE_PS_EXTRA::oMask Present to RenderTarget ||
+ * 3DSTATE_PS_BLEND::AlphaToCoverageEnable ||
+ * 3DSTATE_PS_BLEND::AlphaTestEnable ||
+ * 3DSTATE_WM_CHROMAKEY::ChromaKeyKillEnable)
+ *
+ * 3DSTATE_WM_CHROMAKEY::ChromaKeyKillEnable is always false and so is
+ * 3DSTATE_PS_BLEND::AlphaTestEnable since Vulkan doesn't have a concept
+ * of an alpha test.
+ */
+ pipeline->kill_pixel =
+ subpass->has_ds_self_dep || wm_prog_data->uses_kill ||
+ wm_prog_data->uses_omask ||
+ (ms_info && ms_info->alphaToCoverageEnable);
+}
+
static VkResult
genX(graphics_pipeline_create)(
VkDevice _device,
@@ -1480,6 +1521,7 @@ genX(graphics_pipeline_create)(
emit_ds_state(pipeline, pCreateInfo->pDepthStencilState, pass, subpass);
emit_cb_state(pipeline, pCreateInfo->pColorBlendState,
pCreateInfo->pMultisampleState);
+ compute_kill_pixel(pipeline, pCreateInfo->pMultisampleState, subpass);
emit_urb_setup(pipeline);