glsl: Move _mesa_shader_stage_to_string/abbrev to shader_enums.c

These are used by code that doesn't necessarily link to libglsl.la. Move
them to shader_enums.[ch] where we keep similar helpers.

Reviewed-by: Matt Turner <mattst88@gmail.com>

src/glsl/glsl_parser_extras.cpp

@@ -412,44 +412,6 @@ _mesa_glsl_parse_state::process_version_directive(YYLTYPE *locp, int version,
 }
 
 
-/**
- * Translate a gl_shader_stage to a short shader stage name for debug
- * printouts and error messages.
- */
-const char *
-_mesa_shader_stage_to_string(unsigned stage)
-{
-   switch (stage) {
-   case MESA_SHADER_VERTEX:   return "vertex";
-   case MESA_SHADER_FRAGMENT: return "fragment";
-   case MESA_SHADER_GEOMETRY: return "geometry";
-   case MESA_SHADER_COMPUTE:  return "compute";
-   case MESA_SHADER_TESS_CTRL: return "tess ctrl";
-   case MESA_SHADER_TESS_EVAL: return "tess eval";
-   }
-
-   unreachable("Unknown shader stage.");
-}
-
-/**
- * Translate a gl_shader_stage to a shader stage abbreviation (VS, GS, FS)
- * for debug printouts and error messages.
- */
-const char *
-_mesa_shader_stage_to_abbrev(unsigned stage)
-{
-   switch (stage) {
-   case MESA_SHADER_VERTEX:   return "VS";
-   case MESA_SHADER_FRAGMENT: return "FS";
-   case MESA_SHADER_GEOMETRY: return "GS";
-   case MESA_SHADER_COMPUTE:  return "CS";
-   case MESA_SHADER_TESS_CTRL: return "TCS";
-   case MESA_SHADER_TESS_EVAL: return "TES";
-   }
-
-   unreachable("Unknown shader stage.");
-}
-
 /* This helper function will append the given message to the shader's
    info log and report it via GL_ARB_debug_output. Per that extension,
    'type' is one of the enum values classifying the message, and

src/glsl/glsl_parser_extras.h

@@ -731,16 +731,6 @@ extern bool _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
 extern "C" {
 #endif
 
-/**
- * Get the textual name of the specified shader stage (which is a
- * gl_shader_stage).
- */
-extern const char *
-_mesa_shader_stage_to_string(unsigned stage);
-
-extern const char *
-_mesa_shader_stage_to_abbrev(unsigned stage);
-
 extern int glcpp_preprocess(void *ctx, const char **shader, char **info_log,
                       const struct gl_extensions *extensions, struct gl_context *gl_ctx);
 

src/glsl/nir/shader_enums.c

@@ -47,6 +47,42 @@ const char * gl_shader_stage_name(gl_shader_stage stage)
    return NAME(stage);
 }
 
+/**
+ * Translate a gl_shader_stage to a short shader stage name for debug
+ * printouts and error messages.
+ */
+const char * _mesa_shader_stage_to_string(unsigned stage)
+{
+   switch (stage) {
+   case MESA_SHADER_VERTEX:   return "vertex";
+   case MESA_SHADER_FRAGMENT: return "fragment";
+   case MESA_SHADER_GEOMETRY: return "geometry";
+   case MESA_SHADER_COMPUTE:  return "compute";
+   case MESA_SHADER_TESS_CTRL: return "tess ctrl";
+   case MESA_SHADER_TESS_EVAL: return "tess eval";
+   }
+
+   unreachable("Unknown shader stage.");
+}
+
+/**
+ * Translate a gl_shader_stage to a shader stage abbreviation (VS, GS, FS)
+ * for debug printouts and error messages.
+ */
+const char * _mesa_shader_stage_to_abbrev(unsigned stage)
+{
+   switch (stage) {
+   case MESA_SHADER_VERTEX:   return "VS";
+   case MESA_SHADER_FRAGMENT: return "FS";
+   case MESA_SHADER_GEOMETRY: return "GS";
+   case MESA_SHADER_COMPUTE:  return "CS";
+   case MESA_SHADER_TESS_CTRL: return "TCS";
+   case MESA_SHADER_TESS_EVAL: return "TES";
+   }
+
+   unreachable("Unknown shader stage.");
+}
+
 const char * gl_vert_attrib_name(gl_vert_attrib attrib)
 {
    static const char *names[] = {

src/glsl/nir/shader_enums.h

@@ -26,6 +26,10 @@
 #ifndef SHADER_ENUMS_H
 #define SHADER_ENUMS_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * Shader stages. Note that these will become 5 with tessellation.
  *
@@ -45,6 +49,18 @@ typedef enum
 
 const char * gl_shader_stage_name(gl_shader_stage stage);
 
+/**
+ * Translate a gl_shader_stage to a short shader stage name for debug
+ * printouts and error messages.
+ */
+const char * _mesa_shader_stage_to_string(unsigned stage);
+
+/**
+ * Translate a gl_shader_stage to a shader stage abbreviation (VS, GS, FS)
+ * for debug printouts and error messages.
+ */
+const char * _mesa_shader_stage_to_abbrev(unsigned stage);
+
 #define MESA_SHADER_STAGES (MESA_SHADER_COMPUTE + 1)
 
 
@@ -519,4 +535,8 @@ enum gl_frag_depth_layout
    FRAG_DEPTH_LAYOUT_UNCHANGED
 };
 
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
 #endif /* SHADER_ENUMS_H */

src/mesa/drivers/dri/i965/brw_link.cpp

@@ -27,7 +27,6 @@
 #include "brw_nir.h"
 #include "brw_program.h"
 #include "glsl/ir_optimization.h"
-#include "glsl/glsl_parser_extras.h"
 #include "program/program.h"
 #include "main/shaderapi.h"
 #include "main/uniforms.h"

src/mesa/drivers/dri/i965/brw_shader.cpp

@@ -27,7 +27,6 @@
 #include "brw_fs.h"
 #include "brw_nir.h"
 #include "brw_vec4_tes.h"
-#include "glsl/glsl_parser_extras.h"
 #include "main/shaderobj.h"
 #include "main/uniforms.h"
 #include "util/debug.h"

src/mesa/drivers/dri/i965/brw_vec4_generator.cpp

@@ -20,7 +20,6 @@
  * IN THE SOFTWARE.
  */
 
-#include "glsl/glsl_parser_extras.h"
 #include "brw_vec4.h"
 #include "brw_cfg.h"
 #include "brw_eu.h"

src/mesa/drivers/dri/i965/gen6_vs_state.c

@@ -32,7 +32,6 @@
 #include "program/prog_parameter.h"
 #include "program/prog_statevars.h"
 #include "intel_batchbuffer.h"
-#include "glsl/glsl_parser_extras.h"
 
 /**
  * Creates a streamed BO containing the push constants for the VS or GS on