[Mesa-dev] [PATCH v3 4/6] spirv_extensions: add spirv_supported_extensions on gl_constants

[Eduardo Lima Mitev]

From: Alejandro Piñeiro <apinheiro at igalia.com>

We can use it to get real values for ARB_spirv_extensions methods.

v2: Rebase update after changes on previous patches.
---
 src/mesa/main/mtypes.h           |  3 +++
 src/mesa/main/spirv_extensions.c | 20 +++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 36534c3de81..cba12008599 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -4040,6 +4040,9 @@ struct gl_constants
 
    /** GL_ARB_gl_spirv */
    struct spirv_supported_capabilities SpirVCapabilities;
+
+   /** GL_ARB_spirv_extensions */
+   struct spirv_supported_extensions *SpirVExtensions;
 };
 
 
diff --git a/src/mesa/main/spirv_extensions.c b/src/mesa/main/spirv_extensions.c
index 40a89c133aa..2bb29461fd4 100644
--- a/src/mesa/main/spirv_extensions.c
+++ b/src/mesa/main/spirv_extensions.c
@@ -27,16 +27,34 @@
  */
 
 #include "spirv_extensions.h"
+#include "compiler/spirv/spirv_extensions.h"
 
 GLuint
 _mesa_get_spirv_extension_count(struct gl_context *ctx)
 {
-   return 0;
+   if (ctx->Const.SpirVExtensions == NULL)
+      return 0;
+
+   return ctx->Const.SpirVExtensions->count;
 }
 
 const GLubyte *
 _mesa_get_enabled_spirv_extension(struct gl_context *ctx,
                                   GLuint index)
 {
+   unsigned int n = 0;
+
+   if (ctx->Const.SpirVExtensions == NULL)
+      return (const GLubyte *) 0;
+
+   for (unsigned int i = 0; i < SPV_EXTENSIONS_COUNT; i++) {
+      if (ctx->Const.SpirVExtensions->supported[i]) {
+         if (n == index)
+            return (const GLubyte *) spirv_extensions_to_string(i);
+         else
+            n++;
+      }
+   }
+
    return (const GLubyte *) 0;
 }
-- 
2.15.1