* 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 "shader/program.h"
+
#include "intel_batchbuffer.h"
#include "brw_defines.h"
brw_clip_init_clipmask(c);
/* -ve rhw workaround */
- brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
- brw_AND(p, brw_null_reg(), get_element_ud(c->reg.R0, 2),
- brw_imm_ud(1<<20));
- brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud(0x3f));
+ if (!BRW_IS_G4X(p->brw)) {
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
+ brw_AND(p, brw_null_reg(), get_element_ud(c->reg.R0, 2),
+ brw_imm_ud(1<<20));
+ brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud(0x3f));
+ }
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
brw_DP4(p, vec4(c->reg.dp1), deref_4f(vtx1, c->offset[VERT_RESULT_HPOS]), c->reg.plane_equation);
is_negative = brw_IF(p, BRW_EXECUTE_1);
{
- brw_ADD(p, c->reg.t, c->reg.dp1, negate(c->reg.dp0));
- brw_math_invert(p, c->reg.t, c->reg.t);
- brw_MUL(p, c->reg.t, c->reg.t, c->reg.dp1);
-
- brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_G, c->reg.t, c->reg.t1 );
- brw_MOV(p, c->reg.t1, c->reg.t);
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ /*
+ * Both can be negative on GM965/G965 due to RHW workaround
+ * if so, this object should be rejected.
+ */
+ if (!BRW_IS_G4X(p->brw)) {
+ brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_LE, c->reg.dp0, brw_imm_f(0.0));
+ is_neg2 = brw_IF(p, BRW_EXECUTE_1);
+ {
+ brw_clip_kill_thread(c);
+ }
+ brw_ENDIF(p, is_neg2);
+ }
+
+ brw_ADD(p, c->reg.t, c->reg.dp1, negate(c->reg.dp0));
+ brw_math_invert(p, c->reg.t, c->reg.t);
+ brw_MUL(p, c->reg.t, c->reg.t, c->reg.dp1);
+
+ brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_G, c->reg.t, c->reg.t1 );
+ brw_MOV(p, c->reg.t1, c->reg.t);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
}
is_negative = brw_ELSE(p, is_negative);
{
- /* Coming back in. We know that both cannot be negative
- * because the line would have been culled in that case.
- */
+ /* Coming back in. We know that both cannot be negative
+ * because the line would have been culled in that case.
+ */
+
+ /* If both are positive, do nothing */
+ /* Only on GM965/G965 */
+ if (!BRW_IS_G4X(p->brw)) {
+ brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_L, c->reg.dp0, brw_imm_f(0.0));
+ is_neg2 = brw_IF(p, BRW_EXECUTE_1);
+ }
- /* If both are positive, do nothing */
- brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_L, c->reg.dp0, brw_imm_f(0.0));
- is_neg2 = brw_IF(p, BRW_EXECUTE_1);
{
- brw_ADD(p, c->reg.t, c->reg.dp0, negate(c->reg.dp1));
- brw_math_invert(p, c->reg.t, c->reg.t);
- brw_MUL(p, c->reg.t, c->reg.t, c->reg.dp0);
-
- brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_G, c->reg.t, c->reg.t0 );
- brw_MOV(p, c->reg.t0, c->reg.t);
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- }
- brw_ENDIF(p, is_neg2);
- }
+ brw_ADD(p, c->reg.t, c->reg.dp0, negate(c->reg.dp1));
+ brw_math_invert(p, c->reg.t, c->reg.t);
+ brw_MUL(p, c->reg.t, c->reg.t, c->reg.dp0);
+
+ brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_G, c->reg.t, c->reg.t0 );
+ brw_MOV(p, c->reg.t0, c->reg.t);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ }
+
+ if (!BRW_IS_G4X(p->brw)) {
+ brw_ENDIF(p, is_neg2);
+ }
+ }
brw_ENDIF(p, is_negative);
}
brw_ENDIF(p, plane_active);