/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ Intel funded Tungsten Graphics to
develop this 3D driver.
-
+
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
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.
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.
-
+
**********************************************************************/
/*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
#include "main/glheader.h"
}
-void brw_clip_tri_alloc_regs( struct brw_clip_compile *c,
+void brw_clip_tri_alloc_regs( struct brw_clip_compile *c,
GLuint nr_verts )
{
struct brw_context *brw = c->func.brw;
i++;
if (!c->key.nr_userclip) {
- c->reg.fixed_planes = brw_vec8_grf(i, 0);
+ c->reg.fixed_planes = brw_vec8_grf(i, 0);
i++;
}
/* Initial list of indices for incoming vertexes:
*/
- brw_AND(p, tmp0, get_element_ud(c->reg.R0, 2), brw_imm_ud(PRIM_MASK));
- brw_CMP(p,
- vec1(brw_null_reg()),
- BRW_CONDITIONAL_EQ,
+ brw_AND(p, tmp0, get_element_ud(c->reg.R0, 2), brw_imm_ud(PRIM_MASK));
+ brw_CMP(p,
+ vec1(brw_null_reg()),
+ BRW_CONDITIONAL_EQ,
tmp0,
brw_imm_ud(_3DPRIM_TRISTRIP_REVERSE));
* second tristrip element: Can ignore sometimes?
*/
brw_IF(p, BRW_EXECUTE_1);
- {
+ {
brw_MOV(p, get_element(c->reg.inlist, 0), brw_address(c->reg.vertex[1]) );
brw_MOV(p, get_element(c->reg.inlist, 1), brw_address(c->reg.vertex[0]) );
if (c->need_direction)
struct brw_compile *p = &c->func;
struct brw_reg tmp0 = c->reg.loopcount; /* handy temporary */
- brw_AND(p, tmp0, get_element_ud(c->reg.R0, 2), brw_imm_ud(PRIM_MASK));
- brw_CMP(p,
- vec1(brw_null_reg()),
- BRW_CONDITIONAL_EQ,
+ brw_AND(p, tmp0, get_element_ud(c->reg.R0, 2), brw_imm_ud(PRIM_MASK));
+ brw_CMP(p,
+ vec1(brw_null_reg()),
+ BRW_CONDITIONAL_EQ,
tmp0,
brw_imm_ud(_3DPRIM_POLYGON));
brw_MOV(p, get_addr_reg(freelist_ptr), brw_address(c->reg.vertex[3]) );
/* Set the initial vertex source mask: The first 6 planes are the bounds
- * of the view volume; the next 6 planes are the user clipping planes.
+ * of the view volume; the next 8 planes are the user clipping planes.
*/
- brw_MOV(p, c->reg.vertex_src_mask, brw_imm_ud(0xfc0));
+ brw_MOV(p, c->reg.vertex_src_mask, brw_imm_ud(0x3fc0));
/* Set the initial clipdistance offset to be 6 floats before gl_ClipDistance[0].
* We'll increment 6 times before we start hitting actual user clipping. */
*/
brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_AND(p, vec1(brw_null_reg()), c->reg.planemask, brw_imm_ud(1));
-
+
brw_IF(p, BRW_EXECUTE_1);
{
- /* vtxOut = freelist_ptr++
+ /* vtxOut = freelist_ptr++
*/
brw_MOV(p, get_addr_reg(vtxOut), get_addr_reg(freelist_ptr) );
brw_ADD(p, get_addr_reg(freelist_ptr), get_addr_reg(freelist_ptr), brw_imm_uw(c->nr_regs * REG_SIZE));
brw_MOV(p, c->reg.plane_equation, deref_4f(plane_ptr, 0));
else
brw_MOV(p, c->reg.plane_equation, deref_4b(plane_ptr, 0));
-
+
brw_MOV(p, c->reg.loopcount, c->reg.nr_verts);
brw_MOV(p, c->reg.nr_verts, brw_imm_ud(0));
brw_clip_interp_vertex(c, vtxOut, vtxPrev, vtx, c->reg.t, false);
/* *outlist_ptr++ = vtxOut;
- * nr_verts++;
+ * nr_verts++;
* vtxOut = 0;
*/
brw_MOV(p, deref_1uw(outlist_ptr, 0), get_addr_reg(vtxOut));
brw_MOV(p, get_addr_reg(vtxOut), brw_imm_uw(0) );
}
brw_ENDIF(p);
-
+
}
brw_ELSE(p);
{
brw_clip_interp_vertex(c, vtxOut, vtx, vtxPrev, c->reg.t, true);
/* *outlist_ptr++ = vtxOut;
- * nr_verts++;
+ * nr_verts++;
* vtxOut = 0;
*/
brw_MOV(p, deref_1uw(outlist_ptr, 0), get_addr_reg(vtxOut));
brw_ADD(p, get_addr_reg(outlist_ptr), get_addr_reg(outlist_ptr), brw_imm_uw(sizeof(short)));
brw_ADD(p, c->reg.nr_verts, c->reg.nr_verts, brw_imm_ud(1));
brw_MOV(p, get_addr_reg(vtxOut), brw_imm_uw(0) );
- }
+ }
brw_ENDIF(p);
}
brw_ENDIF(p);
-
+
/* vtxPrev = vtx;
* inlist_ptr++;
*/
*/
brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_ADD(p, c->reg.loopcount, c->reg.loopcount, brw_imm_d(-1));
- }
+ }
brw_WHILE(p);
/* vtxPrev = *(outlist_ptr-1) OR: outlist[nr_verts-1]
brw_MOV(p, get_addr_reg(outlist_ptr), brw_address(c->reg.outlist));
}
brw_ENDIF(p);
-
+
/* plane_ptr++;
*/
brw_ADD(p, get_addr_reg(plane_ptr), get_addr_reg(plane_ptr), brw_clip_plane_stride(c));
- /* nr_verts >= 3
+ /* nr_verts >= 3
*/
brw_CMP(p,
vec1(brw_null_reg()),
BRW_CONDITIONAL_GE,
c->reg.nr_verts,
brw_imm_ud(3));
-
+
/* && (planemask>>=1) != 0
*/
brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_MOV(p, get_addr_reg(vptr), brw_address(c->reg.inlist));
brw_MOV(p, get_addr_reg(v0), deref_1uw(vptr, 0));
- brw_clip_emit_vue(c, v0, 1, 0,
+ brw_clip_emit_vue(c, v0, BRW_URB_WRITE_ALLOCATE_COMPLETE,
((_3DPRIM_TRIFAN << URB_WRITE_PRIM_TYPE_SHIFT)
| URB_WRITE_PRIM_START));
-
+
brw_ADD(p, get_addr_reg(vptr), get_addr_reg(vptr), brw_imm_uw(2));
brw_MOV(p, get_addr_reg(v0), deref_1uw(vptr, 0));
brw_DO(p, BRW_EXECUTE_1);
{
- brw_clip_emit_vue(c, v0, 1, 0,
+ brw_clip_emit_vue(c, v0, BRW_URB_WRITE_ALLOCATE_COMPLETE,
(_3DPRIM_TRIFAN << URB_WRITE_PRIM_TYPE_SHIFT));
-
+
brw_ADD(p, get_addr_reg(vptr), get_addr_reg(vptr), brw_imm_uw(2));
brw_MOV(p, get_addr_reg(v0), deref_1uw(vptr, 0));
}
brw_WHILE(p);
- brw_clip_emit_vue(c, v0, 0, 1,
+ brw_clip_emit_vue(c, v0, BRW_URB_WRITE_EOT_COMPLETE,
((_3DPRIM_TRIFAN << URB_WRITE_PRIM_TYPE_SHIFT)
| URB_WRITE_PRIM_END));
}
/* test nearz, xmin, ymin plane */
/* clip.xyz < -clip.w */
- brw_CMP(p, t1, BRW_CONDITIONAL_L, v0, negate(get_element(v0, 3)));
+ 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_CMP(p, t2, BRW_CONDITIONAL_L, v1, negate(get_element(v1, 3)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
- brw_CMP(p, t3, BRW_CONDITIONAL_L, v2, negate(get_element(v2, 3)));
+ brw_CMP(p, t3, BRW_CONDITIONAL_L, v2, negate(get_element(v2, 3)));
brw_set_predicate_control(p, BRW_PREDICATE_NONE);
/* All vertices are outside of a plane, rejected */
/* test farz, xmax, ymax plane */
/* clip.xyz > clip.w */
- brw_CMP(p, t1, BRW_CONDITIONAL_G, v0, get_element(v0, 3));
+ 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_G, 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_G, 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_clip_init_clipmask(c);
brw_clip_init_ff_sync(c);
- /* if -ve rhw workaround bit is set,
+ /* if -ve rhw workaround bit is set,
do cliptest */
if (brw->has_negative_rhw_bug) {
brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
- brw_AND(p, brw_null_reg(), get_element_ud(c->reg.R0, 2),
+ brw_AND(p, brw_null_reg(), get_element_ud(c->reg.R0, 2),
brw_imm_ud(1<<20));
brw_IF(p, BRW_EXECUTE_1);
{
* respect the PV when converting to trifan for emit:
*/
if (c->has_flat_shading)
- brw_clip_tri_flat_shade(c);
-
+ brw_clip_tri_flat_shade(c);
+
if ((c->key.clip_mode == BRW_CLIPMODE_NORMAL) ||
(c->key.clip_mode == BRW_CLIPMODE_KERNEL_CLIP))
do_clip_tri(c);
- else
+ else
maybe_do_clip_tri(c);
brw_clip_tri_emit_polygon(c);
projects / mesa.git / blobdiff