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glsl: Create a _mesa_shader_stage_to_abbrev() function.

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This is similar to _mesa_shader_stage_to_string(), but returns "VS"
instead of "vertex".

v2: Use unreachable() and add MESA_SHADER_COMPUTE (requested by Ian).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
This commit is contained in:
Kenneth Graunke 2015-02-18 17:35:41 -08:00
parent 231267bf01
commit 7555d1bafb
2 changed files with 20 additions and 0 deletions
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17
src/glsl/glsl_parser_extras.cpp
View file

@ -376,6 +376,23 @@ _mesa_shader_stage_to_string(unsigned stage)
return "unknown";
}
/**
* 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";
}
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

3
src/glsl/glsl_parser_extras.h
View file

@ -583,6 +583,9 @@ extern "C" {
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);