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path: root/src/mesa/drivers/dri/i965/brw_clip_tri.c
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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_clip_tri.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_clip_tri.c93
1 files changed, 70 insertions, 23 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_clip_tri.c b/src/mesa/drivers/dri/i965/brw_clip_tri.c
index 1dbba37fe7..0efd77225e 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_tri.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_tri.c
@@ -77,6 +77,10 @@ void brw_clip_tri_alloc_regs( struct brw_clip_compile *c,
if (c->nr_attrs & 1) {
for (j = 0; j < 3; j++) {
GLuint delta = c->nr_attrs*16 + 32;
+
+ if (BRW_IS_IGDNG(c->func.brw))
+ delta = c->nr_attrs * 16 + 32 * 3;
+
brw_MOV(&c->func, byte_offset(c->reg.vertex[j], delta), brw_imm_f(0));
}
}
@@ -115,6 +119,11 @@ void brw_clip_tri_alloc_regs( struct brw_clip_compile *c,
i++;
}
+ if (c->need_ff_sync) {
+ c->reg.ff_sync = retype(brw_vec1_grf(i, 0), BRW_REGISTER_TYPE_UD);
+ i++;
+ }
+
c->first_tmp = i;
c->last_tmp = i;
@@ -455,6 +464,8 @@ static void brw_clip_test( struct brw_clip_compile *c )
struct brw_indirect vt2 = brw_indirect(2, 0);
struct brw_compile *p = &c->func;
+ struct brw_instruction *is_outside;
+ struct brw_reg tmp0 = c->reg.loopcount; /* handy temporary */
brw_MOV(p, get_addr_reg(vt0), brw_address(c->reg.vertex[0]));
brw_MOV(p, get_addr_reg(vt1), brw_address(c->reg.vertex[1]));
@@ -462,53 +473,87 @@ static void brw_clip_test( struct brw_clip_compile *c )
brw_MOV(p, v0, deref_4f(vt0, c->offset[VERT_RESULT_HPOS]));
brw_MOV(p, v1, deref_4f(vt1, c->offset[VERT_RESULT_HPOS]));
brw_MOV(p, v2, deref_4f(vt2, c->offset[VERT_RESULT_HPOS]));
+ brw_AND(p, c->reg.planemask, c->reg.planemask, brw_imm_ud(~0x3f));
/* test nearz, xmin, ymin plane */
- brw_CMP(p, t1, BRW_CONDITIONAL_LE, negate(v0), get_element(v0, 3));
+ /* clip.xyz < -clip.w */
+ brw_CMP(p, t1, BRW_CONDITIONAL_L, v0, negate(get_element(v0, 3)));
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_CMP(p, t2, BRW_CONDITIONAL_L, v1, negate(get_element(v1, 3)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, t2, BRW_CONDITIONAL_LE, negate(v1), get_element(v1, 3));
+ brw_CMP(p, t3, BRW_CONDITIONAL_L, v2, negate(get_element(v2, 3)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, t3, BRW_CONDITIONAL_LE, negate(v2), get_element(v2, 3));
+
+ /* All vertices are outside of a plane, rejected */
+ brw_AND(p, t, t1, t2);
+ brw_AND(p, t, t, t3);
+ brw_OR(p, tmp0, get_element(t, 0), get_element(t, 1));
+ brw_OR(p, tmp0, tmp0, get_element(t, 2));
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
+ brw_AND(p, brw_null_reg(), tmp0, brw_imm_ud(0x1));
+ is_outside = brw_IF(p, BRW_EXECUTE_1);
+ {
+ brw_clip_kill_thread(c);
+ }
+ brw_ENDIF(p, is_outside);
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+
+ /* some vertices are inside a plane, some are outside,need to clip */
brw_XOR(p, t, t1, t2);
brw_XOR(p, t1, t2, t3);
brw_OR(p, t, t, t1);
-
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 0), brw_imm_ud(0));
+ brw_AND(p, t, t, brw_imm_ud(0x1));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 0), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<5)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 1), brw_imm_ud(0));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 1), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<3)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 2), brw_imm_ud(0));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 2), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<1)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
/* test farz, xmax, ymax plane */
- brw_CMP(p, t1, BRW_CONDITIONAL_L, v0, get_element(v0, 3));
+ /* clip.xyz > clip.w */
+ brw_CMP(p, t1, BRW_CONDITIONAL_G, v0, get_element(v0, 3));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, t2, BRW_CONDITIONAL_L, v1, get_element(v1, 3));
+ brw_CMP(p, t2, BRW_CONDITIONAL_G, v1, get_element(v1, 3));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, t3, BRW_CONDITIONAL_L, v2, get_element(v2, 3));
+ brw_CMP(p, t3, BRW_CONDITIONAL_G, v2, get_element(v2, 3));
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+
+ /* All vertices are outside of a plane, rejected */
+ brw_AND(p, t, t1, t2);
+ brw_AND(p, t, t, t3);
+ brw_OR(p, tmp0, get_element(t, 0), get_element(t, 1));
+ brw_OR(p, tmp0, tmp0, get_element(t, 2));
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
+ brw_AND(p, brw_null_reg(), tmp0, brw_imm_ud(0x1));
+ is_outside = brw_IF(p, BRW_EXECUTE_1);
+ {
+ brw_clip_kill_thread(c);
+ }
+ brw_ENDIF(p, is_outside);
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ /* some vertices are inside a plane, some are outside,need to clip */
brw_XOR(p, t, t1, t2);
brw_XOR(p, t1, t2, t3);
brw_OR(p, t, t, t1);
-
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 0), brw_imm_ud(0));
+ brw_AND(p, t, t, brw_imm_ud(0x1));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 0), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<4)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 1), brw_imm_ud(0));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 1), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<2)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
- get_element(t, 2), brw_imm_ud(0));
+ brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_NZ,
+ get_element(t, 2), brw_imm_ud(0));
brw_OR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud((1<<0)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
@@ -523,10 +568,11 @@ void brw_emit_tri_clip( struct brw_clip_compile *c )
brw_clip_tri_alloc_regs(c, 3 + c->key.nr_userclip + 6);
brw_clip_tri_init_vertices(c);
brw_clip_init_clipmask(c);
+ brw_clip_init_ff_sync(c);
/* if -ve rhw workaround bit is set,
do cliptest */
- if (!BRW_IS_G4X(p->brw)) {
+ if (BRW_IS_965(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));
@@ -543,11 +589,12 @@ void brw_emit_tri_clip( struct brw_clip_compile *c )
if (c->key.do_flat_shading)
brw_clip_tri_flat_shade(c);
- if (c->key.clip_mode == BRW_CLIPMODE_NORMAL)
+ if ((c->key.clip_mode == BRW_CLIPMODE_NORMAL) ||
+ (c->key.clip_mode == BRW_CLIPMODE_KERNEL_CLIP))
do_clip_tri(c);
else
maybe_do_clip_tri(c);
-
+
brw_clip_tri_emit_polygon(c);
/* Send an empty message to kill the thread:
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 23:54:12 +0000