Merge remote-tracking branch 'origin/released'

1 files changed, 12 insertions, 2 deletions

diff --git a/mesalib/src/glsl/link_uniform_blocks.cpp b/mesalib/src/glsl/link_uniform_blocks.cpp
index 72d6c5323..1a0e64318 100644
--- a/mesalib/src/glsl/link_uniform_blocks.cpp
+++ b/mesalib/src/glsl/link_uniform_blocks.cpp
@@ -251,7 +251,17 @@ link_uniform_blocks(void *mem_ctx,
             blocks[i].Name = ralloc_asprintf(blocks, "%s[%u]", name,
                                              b->array_elements[j]);
             blocks[i].Uniforms = &variables[parcel.index];
-            blocks[i].Binding = 0;
+
+            /* The GL_ARB_shading_language_420pack spec says:
+             *
+             *     "If the binding identifier is used with a uniform block
+             *     instanced as an array then the first element of the array
+             *     takes the specified block binding and each subsequent
+             *     element takes the next consecutive uniform block binding
+             *     point."
+             */
+            blocks[i].Binding = (b->has_binding) ? b->binding + j : 0;
+
             blocks[i].UniformBufferSize = 0;
             blocks[i]._Packing =
                gl_uniform_block_packing(block_type->interface_packing);
@@ -269,7 +279,7 @@ link_uniform_blocks(void *mem_ctx,
       } else {
          blocks[i].Name = ralloc_strdup(blocks, block_type->name);
          blocks[i].Uniforms = &variables[parcel.index];
-         blocks[i].Binding = 0;
+         blocks[i].Binding = (b->has_binding) ? b->binding : 0;
          blocks[i].UniformBufferSize = 0;
          blocks[i]._Packing =
             gl_uniform_block_packing(block_type->interface_packing);