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path: root/mesalib/src/glsl/link_uniform_blocks.cpp
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Diffstat (limited to 'mesalib/src/glsl/link_uniform_blocks.cpp')
-rw-r--r--mesalib/src/glsl/link_uniform_blocks.cpp14
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);