mesa: Use gl_shader::Stage instead of gl_shader::Type where possible.

This reduces confusion since gl_shader::Type is sometimes
GL_SHADER_PROGRAM_MESA but is more frequently
GL_SHADER_{VERTEX,GEOMETRY,FRAGMENT}.  It also has the advantage that
when switching on gl_shader::Stage, the compiler will alert if one of
the possible enum types is unhandled.  Finally, many functions in
src/glsl (especially those dealing with linking) already use
gl_shader_stage to represent pipeline stages; using gl_shader::Stage
in those functions avoids the need for a conversion.

Note: in the process I changed _mesa_write_shader_to_file() so that if
it encounters an unexpected shader stage, it will use a file suffix of
"????" rather than "geom".

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

v2: Split from patch "mesa: Store gl_shader_stage enum in gl_shader objects."

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

1 files changed, 1 insertions, 1 deletions

diff --git a/src/glsl/lower_packed_varyings.cpp b/src/glsl/lower_packed_varyings.cpp
index 9edef5d..c23d180 100644
--- a/src/glsl/lower_packed_varyings.cpp
+++ b/src/glsl/lower_packed_varyings.cpp
@@ -669,7 +669,7 @@ lower_packed_varyings(void *mem_ctx, unsigned location_base,
                                          gs_input_vertices, &new_instructions);
    visitor.run(instructions);
    if (mode == ir_var_shader_out) {
-      if (shader->Type == GL_GEOMETRY_SHADER) {
+      if (shader->Stage == MESA_SHADER_GEOMETRY) {
          /* For geometry shaders, outputs need to be lowered before each call
           * to EmitVertex()
           */