spirv_extensions: define spirv_extensions_supported

Add a struct to maintain which SPIR-V extensions are supported, and an
utility method to initialize it based on
nir_spirv_supported_capabilities.

v2:
  * Fixing code style (Ian Romanick)
  * Adding a prefix (spirv) to fill_supported_spirv_extensions (Ian Romanick)

v3: rebase update (nir_spirv_supported_extensions renamed)

v4: include AMD_gcn_shader support

v5: move spirv_fill_supported_spirv_extensions to
    src/mesa/main/spirv_extensions.c

Signed-off-by: Alejandro Piñeiro <[email protected]>
Signed-off-by: Arcady Goldmints-Orlov <[email protected]>

Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mesa/main/spirv_extensions.h b/src/mesa/main/spirv_extensions.h
index 6c8b8275945..9372f505f25 100644
--- a/src/mesa/main/spirv_extensions.h
+++ b/src/mesa/main/spirv_extensions.h
@@ -48,6 +48,14 @@ enum SpvExtension {
    SPV_EXTENSIONS_COUNT
 };
 
+struct spirv_supported_extensions {
+   /** Flags the supported extensions. Array to make it easier to iterate. */
+   bool supported[SPV_EXTENSIONS_COUNT];
+
+   /** Number of supported extensions */
+   unsigned int count;
+};
+
 extern GLuint
 _mesa_get_spirv_extension_count(struct gl_context *ctx);
 
@@ -57,6 +65,9 @@ _mesa_get_enabled_spirv_extension(struct gl_context *ctx,
 
 const char *_mesa_spirv_extensions_to_string(enum SpvExtension ext);
 
+void _mesa_fill_supported_spirv_extensions(struct spirv_supported_extensions *ext,
+                                           const struct spirv_supported_capabilities *cap);
+
 #ifdef __cplusplus
 }
 #endif