nir: Move gl_shader_stage enum from mtypes.h to shader_enums.h.

I want to use this in some code that doesn't currently include mtypes.h.
It seems like a better place for it anyway.

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/glsl/shader_enums.h b/src/glsl/shader_enums.h
index 7f59fdcae6b..79e0f6b5f78 100644
--- a/src/glsl/shader_enums.h
+++ b/src/glsl/shader_enums.h
@@ -27,6 +27,23 @@
 #define SHADER_ENUMS_H
 
 /**
+ * Shader stages. Note that these will become 5 with tessellation.
+ *
+ * The order must match how shaders are ordered in the pipeline.
+ * The GLSL linker assumes that if i<j, then the j-th shader is
+ * executed later than the i-th shader.
+ */
+typedef enum
+{
+   MESA_SHADER_VERTEX = 0,
+   MESA_SHADER_GEOMETRY = 1,
+   MESA_SHADER_FRAGMENT = 2,
+   MESA_SHADER_COMPUTE = 3,
+} gl_shader_stage;
+
+#define MESA_SHADER_STAGES (MESA_SHADER_COMPUTE + 1)
+
+/**
  * Bitflags for system values.
  */
 #define SYSTEM_BIT_SAMPLE_ID ((uint64_t)1 << SYSTEM_VALUE_SAMPLE_ID)