[Mesa-dev] [PATCH 01/15] nir: Add members for the explicit XFB properties to nir_variable
Alejandro PiƱeiro
apinheiro at igalia.com
Fri Jul 20 15:08:30 UTC 2018
From: Neil Roberts <nroberts at igalia.com>
These are copied from the from the corresponding values in
ir_variable. The intention is to eventually use them in a pure-NIR
linker.
---
src/compiler/glsl/glsl_to_nir.cpp | 4 ++++
src/compiler/nir/nir.h | 27 ++++++++++++++++++++++++++-
2 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp
index 2d76c7e6cfe..1e4d9f9d3c8 100644
--- a/src/compiler/glsl/glsl_to_nir.cpp
+++ b/src/compiler/glsl/glsl_to_nir.cpp
@@ -440,6 +440,10 @@ nir_visitor::visit(ir_variable *ir)
var->data.image.restrict_flag = ir->data.memory_restrict;
var->data.image.format = ir->data.image_format;
var->data.fb_fetch_output = ir->data.fb_fetch_output;
+ var->data.explicit_xfb_buffer = ir->data.explicit_xfb_buffer;
+ var->data.explicit_xfb_stride = ir->data.explicit_xfb_stride;
+ var->data.xfb_buffer = ir->data.xfb_buffer;
+ var->data.xfb_stride = ir->data.xfb_stride;
var->num_state_slots = ir->get_num_state_slots();
if (var->num_state_slots > 0) {
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 3bfe7d7f7bf..469b6147da7 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -259,6 +259,21 @@ typedef struct nir_variable {
*/
unsigned explicit_binding:1;
+ /**
+ * Was a transfer feedback buffer set in the shader?
+ */
+ unsigned explicit_xfb_buffer:1;
+
+ /**
+ * Was a transfer feedback stride set in the shader?
+ */
+ unsigned explicit_xfb_stride:1;
+
+ /**
+ * Was an explicit offset set in the shader?
+ */
+ unsigned explicit_offset:1;
+
/**
* \brief Layout qualifier for gl_FragDepth.
*
@@ -320,10 +335,20 @@ typedef struct nir_variable {
int binding;
/**
- * Location an atomic counter is stored at.
+ * Location an atomic counter or transform feedback is stored at.
*/
unsigned offset;
+ /**
+ * Transform feedback buffer.
+ */
+ unsigned xfb_buffer;
+
+ /**
+ * Transform feedback stride.
+ */
+ unsigned xfb_stride;
+
/**
* ARB_shader_image_load_store qualifiers.
*/
--
2.14.1
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