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-rw-r--r--src/mesa/main/uniforms.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/mesa/main/uniforms.c b/src/mesa/main/uniforms.c
index 1cec5922db5..ccbd753dbec 100644
--- a/src/mesa/main/uniforms.c
+++ b/src/mesa/main/uniforms.c
@@ -524,6 +524,32 @@ _mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name)
return _mesa_uniform_merge_location_offset(index, offset);
}
+static GLuint GLAPIENTRY
+_mesa_GetUniformBlockIndex(GLuint program,
+ const GLchar *uniformBlockName)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint i;
+ struct gl_shader_program *shProg;
+
+ if (!ctx->Extensions.ARB_uniform_buffer_object) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformBlockIndex");
+ return GL_INVALID_INDEX;
+ }
+
+ shProg = _mesa_lookup_shader_program_err(ctx, program,
+ "glGetUniformBlockIndex");
+ if (!shProg)
+ return GL_INVALID_INDEX;
+
+ for (i = 0; i < shProg->NumUniformBlocks; i++) {
+ if (!strcmp(shProg->UniformBlocks[i].Name, uniformBlockName))
+ return i;
+ }
+
+ return GL_INVALID_INDEX;
+}
+
static void GLAPIENTRY
_mesa_GetUniformIndices(GLuint program,
GLsizei uniformCount,
@@ -615,6 +641,7 @@ _mesa_init_shader_uniform_dispatch(struct _glapi_table *exec)
SET_GetnUniformdvARB(exec, _mesa_GetnUniformdvARB); /* GL 4.0 */
/* GL_ARB_uniform_buffer_object / GL 3.1 */
+ SET_GetUniformBlockIndex(exec, _mesa_GetUniformBlockIndex);
SET_GetUniformIndices(exec, _mesa_GetUniformIndices);
SET_GetActiveUniformsiv(exec, _mesa_GetActiveUniformsiv);