1 files changed, 96 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_compile_clip.c b/src/intel/compiler/brw_compile_clip.c
new file mode 100644
index 00000000000..83788e4b648
--- /dev/null
+++ b/src/intel/compiler/brw_compile_clip.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2006 - 2017 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_clip.h"
+
+#include "common/gen_debug.h"
+
+const unsigned *
+brw_compile_clip(const struct brw_compiler *compiler,
+                 void *mem_ctx,
+                 const struct brw_clip_prog_key *key,
+                 struct brw_clip_prog_data *prog_data,
+                 struct brw_vue_map *vue_map,
+                 unsigned *final_assembly_size)
+{
+   struct brw_clip_compile c;
+   memset(&c, 0, sizeof(c));
+
+   /* Begin the compilation:
+    */
+   brw_init_codegen(compiler->devinfo, &c.func, mem_ctx);
+
+   c.func.single_program_flow = 1;
+
+   c.key = *key;
+   c.vue_map = *vue_map;
+
+   /* nr_regs is the number of registers filled by reading data from the VUE.
+    * This program accesses the entire VUE, so nr_regs needs to be the size of
+    * the VUE (measured in pairs, since two slots are stored in each
+    * register).
+    */
+   c.nr_regs = (c.vue_map.num_slots + 1)/2;
+
+   c.prog_data.clip_mode = c.key.clip_mode; /* XXX */
+
+   /* For some reason the thread is spawned with only 4 channels
+    * unmasked.
+    */
+   brw_set_default_mask_control(&c.func, BRW_MASK_DISABLE);
+
+   /* Would ideally have the option of producing a program which could
+    * do all three:
+    */
+   switch (key->primitive) {
+   case GL_TRIANGLES:
+      if (key->do_unfilled)
+	 brw_emit_unfilled_clip( &c );
+      else
+	 brw_emit_tri_clip( &c );
+      break;
+   case GL_LINES:
+      brw_emit_line_clip( &c );
+      break;
+   case GL_POINTS:
+      brw_emit_point_clip( &c );
+      break;
+   default:
+      unreachable("not reached");
+   }
+
+   brw_compact_instructions(&c.func, 0, 0, NULL);
+
+   *prog_data = c.prog_data;
+
+   const unsigned *program = brw_get_program(&c.func, final_assembly_size);
+
+   if (unlikely(INTEL_DEBUG & DEBUG_CLIP)) {
+      fprintf(stderr, "clip:\n");
+      brw_disassemble(compiler->devinfo,
+                      program, 0, *final_assembly_size, stderr);
+      fprintf(stderr, "\n");
+   }
+
+   return program;
+}