diff options
| -rw-r--r-- | src/mesa/main/program_resource.c | 25 | ||||
| -rw-r--r-- | src/mesa/main/shader_query.cpp | 18 | ||||
| -rw-r--r-- | src/mesa/main/shaderapi.h | 4 |
3 files changed, 46 insertions, 1 deletions
diff --git a/src/mesa/main/program_resource.c b/src/mesa/main/program_resource.c index ee39f31..9eb4e2f 100644 --- a/src/mesa/main/program_resource.c +++ b/src/mesa/main/program_resource.c @@ -364,9 +364,32 @@ _mesa_GetProgramResourceLocation(GLuint program, GLenum programInterface, return _mesa_program_resource_location(shProg, programInterface, name); } +/** + * Returns output index for dual source blending. + */ GLint GLAPIENTRY _mesa_GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar *name) { - return -1; + GET_CURRENT_CONTEXT(ctx); + struct gl_shader_program *shProg = + lookup_linked_program(program, "glGetProgramResourceLocationIndex"); + + if (!shProg || !name || invalid_array_element_syntax(name)) + return -1; + + /* From the GL_ARB_program_interface_query spec: + * + * "For GetProgramResourceLocationIndex, <programInterface> must be + * PROGRAM_OUTPUT." + */ + if (programInterface != GL_PROGRAM_OUTPUT) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetProgramResourceLocationIndex(%s)", + _mesa_lookup_enum_by_nr(programInterface)); + return -1; + } + + return _mesa_program_resource_location_index(shProg, GL_PROGRAM_OUTPUT, + name); } diff --git a/src/mesa/main/shader_query.cpp b/src/mesa/main/shader_query.cpp index f50ceb6..8b2281d 100644 --- a/src/mesa/main/shader_query.cpp +++ b/src/mesa/main/shader_query.cpp @@ -821,3 +821,21 @@ _mesa_program_resource_location(struct gl_shader_program *shProg, return program_resource_location(shProg, res, name); } + +/** + * Function implements following index queries: + * glGetFragDataIndex + */ +GLint +_mesa_program_resource_location_index(struct gl_shader_program *shProg, + GLenum interface, const char *name) +{ + struct gl_program_resource *res = + _mesa_program_resource_find_name(shProg, interface, name); + + /* Non-existent variable or resource is not referenced by fragment stage. */ + if (!res || !(res->StageReferences & (1 << MESA_SHADER_FRAGMENT))) + return -1; + + return RESOURCE_VAR(res)->data.index; +} diff --git a/src/mesa/main/shaderapi.h b/src/mesa/main/shaderapi.h index 73ebf60..5046018 100644 --- a/src/mesa/main/shaderapi.h +++ b/src/mesa/main/shaderapi.h @@ -248,6 +248,10 @@ extern GLint _mesa_program_resource_location(struct gl_shader_program *shProg, GLenum interface, const char *name); +extern GLint +_mesa_program_resource_location_index(struct gl_shader_program *shProg, + GLenum interface, const char *name); + #ifdef __cplusplus } #endif |