* Keith Whitwell <keith@tungstengraphics.com>
*/
-#include "glheader.h"
-#include "macros.h"
-#include "enums.h"
+#include "main/glheader.h"
+#include "main/macros.h"
+#include "main/enums.h"
+#include "program/program.h"
-#include "shader/program.h"
#include "intel_batchbuffer.h"
#include "brw_defines.h"
#include "brw_context.h"
#include "brw_eu.h"
-#include "brw_util.h"
#include "brw_clip.h"
struct brw_reg v2 = byte_offset(c->reg.vertex[2], c->offset[VERT_RESULT_HPOS]);
+ struct brw_reg v0n = get_tmp(c);
+ struct brw_reg v1n = get_tmp(c);
+ struct brw_reg v2n = get_tmp(c);
+
+ /* Convert to NDC.
+ * NOTE: We can't modify the original vertex coordinates,
+ * as it may impact further operations.
+ * So, we have to keep normalized coordinates in temp registers.
+ *
+ * TBD-KC
+ * Try to optimize unnecessary MOV's.
+ */
+ brw_MOV(p, v0n, v0);
+ brw_MOV(p, v1n, v1);
+ brw_MOV(p, v2n, v2);
+
+ brw_clip_project_position(c, v0n);
+ brw_clip_project_position(c, v1n);
+ brw_clip_project_position(c, v2n);
+
/* Calculate the vectors of two edges of the triangle:
*/
- brw_ADD(p, e, v0, negate(v2));
- brw_ADD(p, f, v1, negate(v2));
+ brw_ADD(p, e, v0n, negate(v2n));
+ brw_ADD(p, f, v1n, negate(v2n));
/* Take their crossproduct:
*/
brw_clip_tri_alloc_regs(c, 3 + c->key.nr_userclip + 6);
brw_clip_tri_init_vertices(c);
+ brw_clip_init_ff_sync(c);
assert(c->offset[VERT_RESULT_EDGE]);