1 files changed, 52 insertions, 0 deletions
diff --git a/src/glsl/utils.h b/src/glsl/utils.h
new file mode 100644
index 0000000..965ea9e
--- /dev/null
+++ b/src/glsl/utils.h
@@ -0,0 +1,52 @@
+/*
+ * This file is part of libplacebo.
+ *
+ * libplacebo is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libplacebo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libplacebo. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <libplacebo/gpu.h>
+
+#define PL_SPV_VERSION(major, minor) ((major) << 16 | (minor) << 8)
+#define PL_VLK_VERSION(major, minor) ((major) << 22 | (minor) << 12)
+
+// Max version that can be used
+#define PL_MAX_SPIRV_VER PL_SPV_VERSION(1, 6)
+
+struct pl_spirv_version {
+    uint32_t env_version;
+    uint32_t spv_version;
+};
+
+// Returns minimum Vulkan version for given SPIR-V version
+static inline uint32_t pl_spirv_version_to_vulkan(uint32_t spirv_ver)
+{
+    if (spirv_ver >= PL_SPV_VERSION(1, 6))
+        return PL_VLK_VERSION(1, 3);
+    if (spirv_ver >= PL_SPV_VERSION(1, 4))
+        return PL_VLK_VERSION(1, 2);
+    if (spirv_ver >= PL_SPV_VERSION(1, 1))
+        return PL_VLK_VERSION(1, 1);
+    return PL_VLK_VERSION(1, 0);
+}
+
+enum glsl_shader_stage {
+    GLSL_SHADER_VERTEX = 0,
+    GLSL_SHADER_FRAGMENT,
+    GLSL_SHADER_COMPUTE,
+};