[Mesa-dev] [PATCH 03/15] spirv: Handle XFB variable decorations
Alejandro PiƱeiro
apinheiro at igalia.com
Fri Jul 20 15:08:32 UTC 2018
From: Neil Roberts <nroberts at igalia.com>
These set the new explicit XFB members on nir_variable.
This is needed to support ARB_gl_spirv, as Vulkan doesn't support
transform feedback.
---
src/compiler/spirv/vtn_variables.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c
index fbfea6f8cef..6ff2e83515a 100644
--- a/src/compiler/spirv/vtn_variables.c
+++ b/src/compiler/spirv/vtn_variables.c
@@ -1299,7 +1299,6 @@ apply_var_decoration(struct vtn_builder *b,
case SpvDecorationAliased:
case SpvDecorationUniform:
case SpvDecorationStream:
- case SpvDecorationOffset:
case SpvDecorationLinkageAttributes:
break; /* Do nothing with these here */
@@ -1326,9 +1325,16 @@ apply_var_decoration(struct vtn_builder *b,
break;
case SpvDecorationXfbBuffer:
+ var_data->explicit_xfb_buffer = true;
+ var_data->xfb_buffer = dec->literals[0];
+ break;
case SpvDecorationXfbStride:
- vtn_warn("Vulkan does not have transform feedback: %s",
- spirv_decoration_to_string(dec->decoration));
+ var_data->explicit_xfb_stride = true;
+ var_data->xfb_stride = dec->literals[0];
+ break;
+ case SpvDecorationOffset:
+ var_data->explicit_offset = true;
+ var_data->offset = dec->literals[0];
break;
case SpvDecorationCPacked:
--
2.14.1
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