1 files changed, 61 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_nir_uniforms.cpp b/src/mesa/drivers/dri/i965/brw_nir_uniforms.cpp
new file mode 100644
index 00000000000..ede4e917b33
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/brw_nir_uniforms.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "brw_shader.h"
+#include "brw_nir.h"
+
+void
+brw_nir_setup_arb_uniforms(nir_shader *shader, struct gl_program *prog,
+                           struct brw_stage_prog_data *stage_prog_data)
+{
+   struct gl_program_parameter_list *plist = prog->Parameters;
+
+#ifndef NDEBUG
+   if (!shader->uniforms.is_empty()) {
+      /* For ARB programs, only a single "parameters" variable is generated to
+       * support uniform data.
+       */
+      assert(shader->uniforms.length() == 1);
+      nir_variable *var = (nir_variable *) shader->uniforms.get_head();
+      assert(strcmp(var->name, "parameters") == 0);
+      assert(var->type->array_size() == (int)plist->NumParameters);
+   }
+#endif
+
+   for (unsigned p = 0; p < plist->NumParameters; p++) {
+      /* Parameters should be either vec4 uniforms or single component
+       * constants; matrices and other larger types should have been broken
+       * down earlier.
+       */
+      assert(plist->Parameters[p].Size <= 4);
+
+      unsigned i;
+      for (i = 0; i < plist->Parameters[p].Size; i++) {
+         stage_prog_data->param[4 * p + i] = &plist->ParameterValues[p][i];
+      }
+      for (; i < 4; i++) {
+         static const gl_constant_value zero = { 0.0 };
+         stage_prog_data->param[4 * p + i] = &zero;
+      }
+   }
+}