/**
* Returns output index for dual source blending.
*/
GLint GLAPIENTRY
_mesa_GetProgramResourceLocationIndex(GLuint program, GLenum programInterface,
const GLchar *name)
{
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API) {
_mesa_debug(ctx, "glGetProgramResourceLocationIndex(%u, %s, %s)\n",
program, _mesa_enum_to_string(programInterface), name);
}
struct gl_shader_program *shProg =
lookup_linked_program(program, "glGetProgramResourceLocationIndex");
if (!shProg || !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_enum_to_string(programInterface));
return -1;
}
return _mesa_program_resource_location_index(shProg, GL_PROGRAM_OUTPUT,
name);
}
/**
* Returns output index for dual source blending.
*/
GLint GLAPIENTRY
_mesa_GetProgramResourceLocationIndex(GLuint program, GLenum programInterface,
const GLchar *name)
{
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);
}
GLint GLAPIENTRY
_mesa_GetProgramResourceLocation(GLuint program, GLenum programInterface,
const GLchar *name)
{
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API) {
_mesa_debug(ctx, "glGetProgramResourceLocation(%u, %s, %s)\n",
program, _mesa_enum_to_string(programInterface), name);
}
struct gl_shader_program *shProg =
lookup_linked_program(program, "glGetProgramResourceLocation");
if (!shProg || !name)
return -1;
/* Validate programInterface. */
switch (programInterface) {
case GL_UNIFORM:
case GL_PROGRAM_INPUT:
case GL_PROGRAM_OUTPUT:
break;
case GL_VERTEX_SUBROUTINE_UNIFORM:
case GL_FRAGMENT_SUBROUTINE_UNIFORM:
if (!_mesa_has_shader_subroutine(ctx))
goto fail;
break;
case GL_GEOMETRY_SUBROUTINE_UNIFORM:
if (!_mesa_has_geometry_shaders(ctx) || !_mesa_has_shader_subroutine(ctx))
goto fail;
break;
case GL_COMPUTE_SUBROUTINE_UNIFORM:
if (!_mesa_has_compute_shaders(ctx) || !_mesa_has_shader_subroutine(ctx))
goto fail;
break;
case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
if (!_mesa_has_tessellation(ctx) || !_mesa_has_shader_subroutine(ctx))
goto fail;
break;
default:
goto fail;
}
return _mesa_program_resource_location(shProg, programInterface, name);
fail:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramResourceLocation(%s %s)",
_mesa_enum_to_string(programInterface), name);
return -1;
}
GLint GLAPIENTRY
_mesa_GetProgramResourceLocation(GLuint program, GLenum programInterface,
const GLchar *name)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_shader_program *shProg =
lookup_linked_program(program, "glGetProgramResourceLocation");
if (!shProg || !name || invalid_array_element_syntax(name))
return -1;
/* Validate programInterface. */
switch (programInterface) {
case GL_UNIFORM:
case GL_PROGRAM_INPUT:
case GL_PROGRAM_OUTPUT:
break;
/* For reference valid cases requiring additional extension support:
* GL_ARB_shader_subroutine
* GL_ARB_tessellation_shader
* GL_ARB_compute_shader
*/
case GL_VERTEX_SUBROUTINE_UNIFORM:
case GL_TESS_CONTROL_SUBROUTINE_UNIFORM:
case GL_TESS_EVALUATION_SUBROUTINE_UNIFORM:
case GL_GEOMETRY_SUBROUTINE_UNIFORM:
case GL_FRAGMENT_SUBROUTINE_UNIFORM:
case GL_COMPUTE_SUBROUTINE_UNIFORM:
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramResourceLocation(%s %s)",
_mesa_lookup_enum_by_nr(programInterface), name);
}
return _mesa_program_resource_location(shProg, programInterface, name);
}
