/*
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"
#include "main/macros.h"
#include "main/enums.h"
-#include "shader/program.h"
+#include "program/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"
static void release_tmps( struct brw_clip_compile *c )
}
-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 intel_context *intel = &c->func.brw->intel;
+ const struct gen_device_info *devinfo = c->func.devinfo;
GLuint i = 0,j;
/* Register usage is static, precompute here:
i += c->nr_regs;
}
- if (c->nr_attrs & 1) {
+ if (c->vue_map.num_slots % 2) {
+ /* The VUE has an odd number of slots so the last register is only half
+ * used. Fill the second half with zero.
+ */
for (j = 0; j < 3; j++) {
- GLuint delta = c->nr_attrs*16 + 32;
-
- if (intel->is_ironlake)
- delta = c->nr_attrs * 16 + 32 * 3;
+ GLuint delta = brw_vue_slot_to_offset(c->vue_map.num_slots);
brw_MOV(&c->func, byte_offset(c->reg.vertex[j], delta), brw_imm_f(0));
}
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++;
}
i++;
}
- if (intel->needs_ff_sync) {
+ c->reg.vertex_src_mask = retype(brw_vec1_grf(i, 0), BRW_REGISTER_TYPE_UD);
+ c->reg.clipdistance_offset = retype(brw_vec1_grf(i, 1), BRW_REGISTER_TYPE_W);
+ i++;
+
+ if (devinfo->gen == 5) {
c->reg.ff_sync = retype(brw_vec1_grf(i, 0), BRW_REGISTER_TYPE_UD);
i++;
}
void brw_clip_tri_init_vertices( struct brw_clip_compile *c )
{
- struct brw_compile *p = &c->func;
+ struct brw_codegen *p = &c->func;
struct brw_reg tmp0 = c->reg.loopcount; /* handy temporary */
- struct brw_instruction *is_rev;
/* 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));
/* XXX: Is there an easier way to do this? Need to reverse every
* second tristrip element: Can ignore sometimes?
*/
- is_rev = brw_IF(p, BRW_EXECUTE_1);
- {
+ 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)
brw_MOV(p, c->reg.dir, brw_imm_f(-1));
}
- is_rev = brw_ELSE(p, is_rev);
+ brw_ELSE(p);
{
brw_MOV(p, get_element(c->reg.inlist, 0), brw_address(c->reg.vertex[0]) );
brw_MOV(p, get_element(c->reg.inlist, 1), brw_address(c->reg.vertex[1]) );
if (c->need_direction)
brw_MOV(p, c->reg.dir, brw_imm_f(1));
}
- brw_ENDIF(p, is_rev);
+ brw_ENDIF(p);
brw_MOV(p, get_element(c->reg.inlist, 2), brw_address(c->reg.vertex[2]) );
brw_MOV(p, brw_vec8_grf(c->reg.outlist.nr, 0), brw_imm_f(0));
void brw_clip_tri_flat_shade( struct brw_clip_compile *c )
{
- struct brw_compile *p = &c->func;
- struct brw_instruction *is_poly;
+ struct brw_codegen *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));
- is_poly = brw_IF(p, BRW_EXECUTE_1);
+ brw_IF(p, BRW_EXECUTE_1);
{
- brw_clip_copy_colors(c, 1, 0);
- brw_clip_copy_colors(c, 2, 0);
+ brw_clip_copy_flatshaded_attributes(c, 1, 0);
+ brw_clip_copy_flatshaded_attributes(c, 2, 0);
}
- is_poly = brw_ELSE(p, is_poly);
+ brw_ELSE(p);
{
if (c->key.pv_first) {
- brw_clip_copy_colors(c, 1, 0);
- brw_clip_copy_colors(c, 2, 0);
+ brw_CMP(p,
+ vec1(brw_null_reg()),
+ BRW_CONDITIONAL_EQ,
+ tmp0,
+ brw_imm_ud(_3DPRIM_TRIFAN));
+ brw_IF(p, BRW_EXECUTE_1);
+ {
+ brw_clip_copy_flatshaded_attributes(c, 0, 1);
+ brw_clip_copy_flatshaded_attributes(c, 2, 1);
+ }
+ brw_ELSE(p);
+ {
+ brw_clip_copy_flatshaded_attributes(c, 1, 0);
+ brw_clip_copy_flatshaded_attributes(c, 2, 0);
+ }
+ brw_ENDIF(p);
}
else {
- brw_clip_copy_colors(c, 0, 2);
- brw_clip_copy_colors(c, 1, 2);
+ brw_clip_copy_flatshaded_attributes(c, 0, 2);
+ brw_clip_copy_flatshaded_attributes(c, 1, 2);
}
}
- brw_ENDIF(p, is_poly);
+ brw_ENDIF(p);
}
+/**
+ * Loads the clip distance for a vertex into `dst`, and ends with
+ * a comparison of it to zero with the condition `cond`.
+ *
+ * - If using a fixed plane, the distance is dot(hpos, plane).
+ * - If using a user clip plane, the distance is directly available in the vertex.
+ */
+static inline void
+load_clip_distance(struct brw_clip_compile *c, struct brw_indirect vtx,
+ struct brw_reg dst, GLuint hpos_offset, int cond)
+{
+ struct brw_codegen *p = &c->func;
+
+ dst = vec4(dst);
+ brw_AND(p, vec1(brw_null_reg()), c->reg.vertex_src_mask, brw_imm_ud(1));
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_IF(p, BRW_EXECUTE_1);
+ {
+ struct brw_indirect temp_ptr = brw_indirect(7, 0);
+ brw_ADD(p, get_addr_reg(temp_ptr), get_addr_reg(vtx), c->reg.clipdistance_offset);
+ brw_MOV(p, vec1(dst), deref_1f(temp_ptr, 0));
+ }
+ brw_ELSE(p);
+ {
+ brw_MOV(p, dst, deref_4f(vtx, hpos_offset));
+ brw_DP4(p, dst, dst, c->reg.plane_equation);
+ }
+ brw_ENDIF(p);
+
+ brw_CMP(p, brw_null_reg(), cond, vec1(dst), brw_imm_f(0.0f));
+}
+
/* Use mesa's clipping algorithms, translated to GEN4 assembly.
*/
void brw_clip_tri( struct brw_clip_compile *c )
{
- struct brw_compile *p = &c->func;
+ struct brw_codegen *p = &c->func;
struct brw_indirect vtx = brw_indirect(0, 0);
struct brw_indirect vtxPrev = brw_indirect(1, 0);
struct brw_indirect vtxOut = brw_indirect(2, 0);
struct brw_indirect inlist_ptr = brw_indirect(4, 0);
struct brw_indirect outlist_ptr = brw_indirect(5, 0);
struct brw_indirect freelist_ptr = brw_indirect(6, 0);
- struct brw_instruction *plane_loop;
- struct brw_instruction *plane_active;
- struct brw_instruction *vertex_loop;
- struct brw_instruction *next_test;
- struct brw_instruction *prev_test;
-
+ GLuint hpos_offset = brw_varying_to_offset(&c->vue_map, VARYING_SLOT_POS);
+ GLint clipdist0_offset = c->key.nr_userclip
+ ? brw_varying_to_offset(&c->vue_map, VARYING_SLOT_CLIP_DIST0)
+ : 0;
+
brw_MOV(p, get_addr_reg(vtxPrev), brw_address(c->reg.vertex[2]) );
brw_MOV(p, get_addr_reg(plane_ptr), brw_clip_plane0_address(c));
brw_MOV(p, get_addr_reg(inlist_ptr), brw_address(c->reg.inlist));
brw_MOV(p, get_addr_reg(freelist_ptr), brw_address(c->reg.vertex[3]) );
- plane_loop = brw_DO(p, BRW_EXECUTE_1);
+ /* Set the initial vertex source mask: The first 6 planes are the bounds
+ * of the view volume; the next 8 planes are the user clipping planes.
+ */
+ 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_MOV(p, c->reg.clipdistance_offset, brw_imm_d(clipdist0_offset - 6*sizeof(float)));
+
+ brw_DO(p, BRW_EXECUTE_1);
{
/* if (planemask & 1)
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_AND(p, vec1(brw_null_reg()), c->reg.planemask, brw_imm_ud(1));
-
- plane_active = brw_IF(p, BRW_EXECUTE_1);
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+
+ 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));
- vertex_loop = brw_DO(p, BRW_EXECUTE_1);
+ brw_DO(p, BRW_EXECUTE_1);
{
/* vtx = *input_ptr;
*/
brw_MOV(p, get_addr_reg(vtx), deref_1uw(inlist_ptr, 0));
- /* IS_NEGATIVE(prev) */
- brw_set_conditionalmod(p, BRW_CONDITIONAL_L);
- brw_DP4(p, vec4(c->reg.dpPrev), deref_4f(vtxPrev, c->offset[VERT_RESULT_HPOS]), c->reg.plane_equation);
- prev_test = brw_IF(p, BRW_EXECUTE_1);
+ load_clip_distance(c, vtxPrev, c->reg.dpPrev, hpos_offset, BRW_CONDITIONAL_L);
+ /* (prev < 0.0f) */
+ brw_IF(p, BRW_EXECUTE_1);
{
+ load_clip_distance(c, vtx, c->reg.dp, hpos_offset, BRW_CONDITIONAL_GE);
/* IS_POSITIVE(next)
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_GE);
- brw_DP4(p, vec4(c->reg.dp), deref_4f(vtx, c->offset[VERT_RESULT_HPOS]), c->reg.plane_equation);
- next_test = brw_IF(p, BRW_EXECUTE_1);
+ brw_IF(p, BRW_EXECUTE_1);
{
/* Coming back in.
/* If (vtxOut == 0) vtxOut = vtxPrev
*/
brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_EQ, get_addr_reg(vtxOut), brw_imm_uw(0) );
- brw_MOV(p, get_addr_reg(vtxOut), get_addr_reg(vtxPrev) );
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_MOV(p, get_addr_reg(vtxOut), get_addr_reg(vtxPrev));
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst,
+ BRW_PREDICATE_NORMAL);
- brw_clip_interp_vertex(c, vtxOut, vtxPrev, vtx, c->reg.t, GL_FALSE);
+ 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_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, next_test);
-
+ brw_ENDIF(p);
+
}
- prev_test = brw_ELSE(p, prev_test);
+ brw_ELSE(p);
{
/* *outlist_ptr++ = vtxPrev;
* nr_verts++;
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));
- /* IS_NEGATIVE(next)
+ load_clip_distance(c, vtx, c->reg.dp, hpos_offset, BRW_CONDITIONAL_L);
+ /* (next < 0.0f)
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_L);
- brw_DP4(p, vec4(c->reg.dp), deref_4f(vtx, c->offset[VERT_RESULT_HPOS]), c->reg.plane_equation);
- next_test = brw_IF(p, BRW_EXECUTE_1);
+ brw_IF(p, BRW_EXECUTE_1);
{
/* Going out of bounds. Avoid division by zero as we
* know dp != dpPrev from DIFFERENT_SIGNS, above.
/* If (vtxOut == 0) vtxOut = vtx
*/
brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_EQ, get_addr_reg(vtxOut), brw_imm_uw(0) );
- brw_MOV(p, get_addr_reg(vtxOut), get_addr_reg(vtx) );
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_MOV(p, get_addr_reg(vtxOut), get_addr_reg(vtx));
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst,
+ BRW_PREDICATE_NORMAL);
- brw_clip_interp_vertex(c, vtxOut, vtx, vtxPrev, c->reg.t, GL_TRUE);
+ 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, next_test);
+ }
+ brw_ENDIF(p);
}
- brw_ENDIF(p, prev_test);
-
+ brw_ENDIF(p);
+
/* vtxPrev = vtx;
* inlist_ptr++;
*/
/* while (--loopcount != 0)
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_ADD(p, c->reg.loopcount, c->reg.loopcount, brw_imm_d(-1));
- }
- brw_WHILE(p, vertex_loop);
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ }
+ brw_WHILE(p);
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
/* vtxPrev = *(outlist_ptr-1) OR: outlist[nr_verts-1]
* inlist = outlist
brw_MOV(p, get_addr_reg(inlist_ptr), brw_address(c->reg.inlist));
brw_MOV(p, get_addr_reg(outlist_ptr), brw_address(c->reg.outlist));
}
- brw_ENDIF(p, plane_active);
-
+ 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));
-
+ brw_set_default_predicate_control(p, BRW_PREDICATE_NORMAL);
+
/* && (planemask>>=1) != 0
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_SHR(p, c->reg.planemask, c->reg.planemask, brw_imm_ud(1));
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_SHR(p, c->reg.vertex_src_mask, c->reg.vertex_src_mask, brw_imm_ud(1));
+ brw_ADD(p, c->reg.clipdistance_offset, c->reg.clipdistance_offset, brw_imm_w(sizeof(float)));
}
- brw_WHILE(p, plane_loop);
+ brw_WHILE(p);
+ brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
}
void brw_clip_tri_emit_polygon(struct brw_clip_compile *c)
{
- struct brw_compile *p = &c->func;
- struct brw_instruction *loop, *if_insn;
+ struct brw_codegen *p = &c->func;
/* for (loopcount = nr_verts-2; loopcount > 0; loopcount--)
*/
- brw_set_conditionalmod(p, BRW_CONDITIONAL_G);
brw_ADD(p,
c->reg.loopcount,
c->reg.nr_verts,
brw_imm_d(-2));
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_G);
- if_insn = brw_IF(p, BRW_EXECUTE_1);
+ brw_IF(p, BRW_EXECUTE_1);
{
struct brw_indirect v0 = brw_indirect(0, 0);
struct brw_indirect vptr = brw_indirect(1, 0);
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, ((_3DPRIM_TRIFAN << 2) | R02_PRIM_START));
-
+ 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));
- loop = brw_DO(p, BRW_EXECUTE_1);
+ brw_DO(p, BRW_EXECUTE_1);
{
- brw_clip_emit_vue(c, v0, 1, 0, (_3DPRIM_TRIFAN << 2));
-
+ 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_set_conditionalmod(p, BRW_CONDITIONAL_NZ);
brw_ADD(p, c->reg.loopcount, c->reg.loopcount, brw_imm_d(-1));
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
}
- brw_WHILE(p, loop);
+ brw_WHILE(p);
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
- brw_clip_emit_vue(c, v0, 0, 1, ((_3DPRIM_TRIFAN << 2) | R02_PRIM_END));
+ brw_clip_emit_vue(c, v0, BRW_URB_WRITE_EOT_COMPLETE,
+ ((_3DPRIM_TRIFAN << URB_WRITE_PRIM_TYPE_SHIFT)
+ | URB_WRITE_PRIM_END));
}
- brw_ENDIF(p, if_insn);
+ brw_ENDIF(p);
}
static void do_clip_tri( struct brw_clip_compile *c )
static void maybe_do_clip_tri( struct brw_clip_compile *c )
{
- struct brw_compile *p = &c->func;
- struct brw_instruction *do_clip;
+ struct brw_codegen *p = &c->func;
brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_NZ, c->reg.planemask, brw_imm_ud(0));
- do_clip = brw_IF(p, BRW_EXECUTE_1);
+ brw_IF(p, BRW_EXECUTE_1);
{
do_clip_tri(c);
}
- brw_ENDIF(p, do_clip);
+ brw_ENDIF(p);
}
static void brw_clip_test( struct brw_clip_compile *c )
struct brw_indirect vt1 = brw_indirect(1, 0);
struct brw_indirect vt2 = brw_indirect(2, 0);
- struct brw_compile *p = &c->func;
- struct brw_instruction *is_outside;
+ struct brw_codegen *p = &c->func;
struct brw_reg tmp0 = c->reg.loopcount; /* handy temporary */
+ GLuint hpos_offset = brw_varying_to_offset(&c->vue_map,
+ VARYING_SLOT_POS);
+
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]));
brw_MOV(p, get_addr_reg(vt2), brw_address(c->reg.vertex[2]));
- 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_MOV(p, v0, deref_4f(vt0, hpos_offset));
+ brw_MOV(p, v1, deref_4f(vt1, hpos_offset));
+ brw_MOV(p, v2, deref_4f(vt2, hpos_offset));
brw_AND(p, c->reg.planemask, c->reg.planemask, brw_imm_ud(~0x3f));
/* test nearz, xmin, ymin plane */
/* 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, t3, BRW_CONDITIONAL_L, v2, negate(get_element(v2, 3)));
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_CMP(p, t1, BRW_CONDITIONAL_L, v0, negate(get_element(v0, 3)));
+ brw_CMP(p, t2, BRW_CONDITIONAL_L, v1, negate(get_element(v1, 3)));
+ brw_CMP(p, t3, BRW_CONDITIONAL_L, v2, negate(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_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_IF(p, BRW_EXECUTE_1);
{
brw_clip_kill_thread(c);
}
- brw_ENDIF(p, is_outside);
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_ENDIF(p);
+ brw_set_default_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_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_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
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_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
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);
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
/* test farz, xmax, ymax plane */
/* 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_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_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_CMP(p, t1, BRW_CONDITIONAL_G, v0, get_element(v0, 3));
+ brw_CMP(p, t2, BRW_CONDITIONAL_G, v1, get_element(v1, 3));
+ brw_CMP(p, t3, BRW_CONDITIONAL_G, 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_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_IF(p, BRW_EXECUTE_1);
{
brw_clip_kill_thread(c);
}
- brw_ENDIF(p, is_outside);
- brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ brw_ENDIF(p);
+ brw_set_default_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_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_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
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_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
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);
+ brw_inst_set_pred_control(p->devinfo, brw_last_inst, BRW_PREDICATE_NORMAL);
release_tmps(c);
}
void brw_emit_tri_clip( struct brw_clip_compile *c )
{
- struct brw_instruction *neg_rhw;
- struct brw_compile *p = &c->func;
- struct brw_context *brw = p->brw;
+ struct brw_codegen *p = &c->func;
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,
+ /* 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),
+ if (p->devinfo->has_negative_rhw_bug) {
+ brw_AND(p, brw_null_reg(), get_element_ud(c->reg.R0, 2),
brw_imm_ud(1<<20));
- neg_rhw = brw_IF(p, BRW_EXECUTE_1);
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_IF(p, BRW_EXECUTE_1);
{
brw_clip_test(c);
}
- brw_ENDIF(p, neg_rhw);
+ brw_ENDIF(p);
}
/* Can't push into do_clip_tri because with polygon (or quad)
* flatshading, need to apply the flatshade here because we don't
* respect the PV when converting to trifan for emit:
*/
- if (c->key.do_flat_shading)
- brw_clip_tri_flat_shade(c);
-
+ if (c->key.contains_flat_varying)
+ 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