Mesa (master): anv: Fix VK_EXT_transform_feedback working with varyings packed in PSIZ
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Mon Feb 4 15:30:59 UTC 2019
Module: Mesa
Branch: master
Commit: 64d3b148fe71453c296ba9525f49ffe728171582
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=64d3b148fe71453c296ba9525f49ffe728171582
Author: Danylo Piliaiev <danylo.piliaiev at globallogic.com>
Date: Fri Feb 1 12:21:38 2019 +0200
anv: Fix VK_EXT_transform_feedback working with varyings packed in PSIZ
Transform feedback did not set correct SO_DECL.ComponentMask for
varyings packed in VARYING_SLOT_PSIZ:
gl_Layer - VARYING_SLOT_LAYER in VARYING_SLOT_PSIZ.y
gl_ViewportIndex - VARYING_SLOT_VIEWPORT in VARYING_SLOT_PSIZ.z
gl_PointSize - VARYING_SLOT_PSIZ in VARYING_SLOT_PSIZ.w
Fixes: 36ee2fd61c8f94 "anv: Implement the basic form of VK_EXT_transform_feedback"
Signed-off-by: Danylo Piliaiev <danylo.piliaiev at globallogic.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
---
src/intel/vulkan/genX_pipeline.c | 23 ++++++++++++++++++++---
1 file changed, 20 insertions(+), 3 deletions(-)
diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index d2142ae42c..2a7044a425 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -1211,13 +1211,30 @@ emit_3dstate_streamout(struct anv_pipeline *pipeline,
hole_dwords -= 4;
}
+ int varying = output->location;
+ uint8_t component_mask = output->component_mask;
+ /* VARYING_SLOT_PSIZ contains three scalar fields packed together:
+ * - VARYING_SLOT_LAYER in VARYING_SLOT_PSIZ.y
+ * - VARYING_SLOT_VIEWPORT in VARYING_SLOT_PSIZ.z
+ * - VARYING_SLOT_PSIZ in VARYING_SLOT_PSIZ.w
+ */
+ if (varying == VARYING_SLOT_LAYER) {
+ varying = VARYING_SLOT_PSIZ;
+ component_mask = 1 << 1; // SO_DECL_COMPMASK_Y
+ } else if (varying == VARYING_SLOT_VIEWPORT) {
+ varying = VARYING_SLOT_PSIZ;
+ component_mask = 1 << 2; // SO_DECL_COMPMASK_Z
+ } else if (varying == VARYING_SLOT_PSIZ) {
+ component_mask = 1 << 3; // SO_DECL_COMPMASK_W
+ }
+
next_offset[buffer] = output->offset +
- __builtin_popcount(output->component_mask) * 4;
+ __builtin_popcount(component_mask) * 4;
so_decl[stream][decls[stream]++] = (struct GENX(SO_DECL)) {
.OutputBufferSlot = buffer,
- .RegisterIndex = vue_map->varying_to_slot[output->location],
- .ComponentMask = output->component_mask,
+ .RegisterIndex = vue_map->varying_to_slot[varying],
+ .ComponentMask = component_mask,
};
}
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