spirv_extensions: define spirv_extensions_supported

[mesa.git] / src / mesa / main / spirv_extensions.c

diff --git a/src/mesa/main/spirv_extensions.c b/src/mesa/main/spirv_extensions.c
index 7598510e21c60d5c421a8daa14bad233ec0efec7..99af4db2ba07aee50057ee8c10f971295d70be27 100644 (file)
--- a/src/mesa/main/spirv_extensions.c
+++ b/src/mesa/main/spirv_extensions.c
@@ -26,6 +26,7 @@
  * \brief SPIRV-V extension handling. See ARB_spirv_extensions
  */
 
+#include <stdbool.h>
 #include "spirv_extensions.h"
 
 GLuint
@@ -62,3 +63,34 @@ _mesa_spirv_extensions_to_string(enum SpvExtension ext)
 
    return "unknown";
 }
+
+/**
+ * Sets the supported flags for known SPIR-V extensions based on the
+ * capabilites supported (spirv capabilities based on the spirv to nir
+ * support).
+ *
+ * One could argue that makes more sense in the other way around, as from the
+ * spec pov capabilities are enable for a given extension. But from our pov,
+ * we support or not (depending on the driver) some given capability, and
+ * spirv_to_nir check for capabilities not extensions. Also we usually fill
+ * first the supported capabilities, that are not always related to an
+ * extension.
+ */
+void
+_mesa_fill_supported_spirv_extensions(struct spirv_supported_extensions *ext,
+                                      const struct spirv_supported_capabilities *cap)
+{
+   memset(ext->supported, 0, sizeof(ext->supported));
+
+   ext->count = 0;
+
+   ext->supported[SPV_KHR_shader_draw_parameters] = cap->draw_parameters;
+   ext->supported[SPV_KHR_multiview] = cap->multiview;
+   ext->supported[SPV_KHR_variable_pointers] = cap->variable_pointers;
+   ext->supported[SPV_AMD_gcn_shader] = cap->amd_gcn_shader;
+
+   for (unsigned i = 0; i < SPV_EXTENSIONS_COUNT; i++) {
+      if (ext->supported[i])
+         ext->count++;
+   }
+}