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, 2 insertions, 2 deletions

diff --git a/src/glsl/tests/set_uniform_initializer_tests.cpp b/src/glsl/tests/set_uniform_initializer_tests.cpp
index 5c6d4a5..be202b3 100644
--- a/src/glsl/tests/set_uniform_initializer_tests.cpp
+++ b/src/glsl/tests/set_uniform_initializer_tests.cpp
@@ -116,7 +116,7 @@ establish_uniform_storage(struct gl_shader_program *prog, unsigned num_storage,
    prog->UniformStorage[index_to_set].type = type;
    prog->UniformStorage[index_to_set].array_elements = array_size;
    prog->UniformStorage[index_to_set].initialized = false;
-   for (int sh = 0; sh < MESA_SHADER_TYPES; sh++) {
+   for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
       prog->UniformStorage[index_to_set].sampler[sh].index = ~0;
       prog->UniformStorage[index_to_set].sampler[sh].active = false;
    }
@@ -137,7 +137,7 @@ establish_uniform_storage(struct gl_shader_program *prog, unsigned num_storage,
       prog->UniformStorage[i].type = glsl_type::void_type;
       prog->UniformStorage[i].array_elements = 0;
       prog->UniformStorage[i].initialized = false;
-      for (int sh = 0; sh < MESA_SHADER_TYPES; sh++) {
+      for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
          prog->UniformStorage[i].sampler[sh].index = ~0;
          prog->UniformStorage[i].sampler[sh].active = false;
       }