mesa: Clean up nomenclature for pipeline stages.

Previously, we had an enum called gl_shader_type which represented
pipeline stages in the order they occur in the pipeline
(i.e. MESA_SHADER_VERTEX=0, MESA_SHADER_GEOMETRY=1, etc), and several
inconsistently named functions for converting between it and other
representations:

- _mesa_shader_type_to_string: gl_shader_type -> string
- _mesa_shader_type_to_index: GLenum (GL_*_SHADER) -> gl_shader_type
- _mesa_program_target_to_index: GLenum (GL_*_PROGRAM) -> gl_shader_type
- _mesa_shader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string

This patch tries to clean things up so that we use more consistent
terminology: the enum is now called gl_shader_stage (to emphasize that
it is in the order of pipeline stages), and the conversion functions are:

- _mesa_shader_stage_to_string: gl_shader_stage -> string
- _mesa_shader_enum_to_shader_stage: GLenum (GL_*_SHADER) -> gl_shader_stage
- _mesa_program_enum_to_shader_stage: GLenum (GL_*_PROGRAM) -> gl_shader_stage
- _mesa_progshader_enum_to_string: GLenum (GL_*_{SHADER,PROGRAM}) -> string

In addition, MESA_SHADER_TYPES has been renamed to MESA_SHADER_STAGES,
for consistency with the new name for the enum.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

v2: Also rename the "target" field of _mesa_glsl_parse_state and the
"target" parameter of _mesa_shader_stage_to_string to "stage".

Reviewed-by: Brian Paul <brianp@vmware.com>

1 files changed, 12 insertions, 12 deletions

diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp
index 98f902c..ab40d45 100644
--- a/src/glsl/link_varyings.cpp
+++ b/src/glsl/link_varyings.cpp
@@ -82,10 +82,10 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
          linker_error(prog,
                       "%s shader output `%s' declared as type `%s', "
                       "but %s shader input declared as type `%s'\n",
-                      _mesa_shader_enum_to_string(producer_type),
+                      _mesa_progshader_enum_to_string(producer_type),
                       output->name,
                       output->type->name,
-                      _mesa_shader_enum_to_string(consumer_type),
+                      _mesa_progshader_enum_to_string(consumer_type),
                       input->type->name);
          return;
       }
@@ -97,10 +97,10 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
       linker_error(prog,
                    "%s shader output `%s' %s centroid qualifier, "
                    "but %s shader input %s centroid qualifier\n",
-                   _mesa_shader_enum_to_string(producer_type),
+                   _mesa_progshader_enum_to_string(producer_type),
                    output->name,
                    (output->data.centroid) ? "has" : "lacks",
-                   _mesa_shader_enum_to_string(consumer_type),
+                   _mesa_progshader_enum_to_string(consumer_type),
                    (input->data.centroid) ? "has" : "lacks");
       return;
    }
@@ -109,10 +109,10 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
       linker_error(prog,
                    "%s shader output `%s' %s sample qualifier, "
                    "but %s shader input %s sample qualifier\n",
-                   _mesa_shader_enum_to_string(producer_type),
+                   _mesa_progshader_enum_to_string(producer_type),
                    output->name,
                    (output->data.sample) ? "has" : "lacks",
-                   _mesa_shader_enum_to_string(consumer_type),
+                   _mesa_progshader_enum_to_string(consumer_type),
                    (input->data.sample) ? "has" : "lacks");
       return;
    }
@@ -121,10 +121,10 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
       linker_error(prog,
                    "%s shader output `%s' %s invariant qualifier, "
                    "but %s shader input %s invariant qualifier\n",
-                   _mesa_shader_enum_to_string(producer_type),
+                   _mesa_progshader_enum_to_string(producer_type),
                    output->name,
                    (output->data.invariant) ? "has" : "lacks",
-                   _mesa_shader_enum_to_string(consumer_type),
+                   _mesa_progshader_enum_to_string(consumer_type),
                    (input->data.invariant) ? "has" : "lacks");
       return;
    }
@@ -135,10 +135,10 @@ cross_validate_types_and_qualifiers(struct gl_shader_program *prog,
                    "interpolation qualifier, "
                    "but %s shader input specifies %s "
                    "interpolation qualifier\n",
-                   _mesa_shader_enum_to_string(producer_type),
+                   _mesa_progshader_enum_to_string(producer_type),
                    output->name,
                    interpolation_string(output->data.interpolation),
-                   _mesa_shader_enum_to_string(consumer_type),
+                   _mesa_progshader_enum_to_string(consumer_type),
                    interpolation_string(input->data.interpolation));
       return;
    }
@@ -1217,9 +1217,9 @@ assign_varying_locations(struct gl_context *ctx,
 
                linker_error(prog, "%s shader varying %s not written "
                             "by %s shader\n.",
-                            _mesa_shader_enum_to_string(consumer->Type),
+                            _mesa_progshader_enum_to_string(consumer->Type),
 			    var->name,
-                            _mesa_shader_enum_to_string(producer->Type));
+                            _mesa_progshader_enum_to_string(producer->Type));
             }
 
             /* An 'in' variable is only really a shader input if its