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C++ brw_null_reg函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中brw_null_reg函数的典型用法代码示例。如果您正苦于以下问题：C++ brw_null_reg函数的具体用法？C++ brw_null_reg怎么用？C++ brw_null_reg使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了brw_null_reg函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: emit_pixel_w

static void emit_pixel_w( struct brw_compile *p,
			  const struct brw_reg *dst,
			  GLuint mask,
			  const struct brw_reg *arg0,
			  const struct brw_reg *deltas)
{
   /* Don't need this if all you are doing is interpolating color, for
    * instance.
    */
   if (mask & WRITEMASK_W) {      
      struct brw_reg interp3 = brw_vec1_grf(arg0[0].nr+1, 4);

      /* Calc 1/w - just linterp wpos[3] optimized by putting the
       * result straight into a message reg.
       */
      brw_LINE(p, brw_null_reg(), interp3, deltas[0]);
      brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), deltas[1]);

      /* Calc w */
      brw_math_16( p, dst[3],
		   BRW_MATH_FUNCTION_INV,
		   BRW_MATH_SATURATE_NONE,
		   2, brw_null_reg(),
		   BRW_MATH_PRECISION_FULL);
   }
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:26，代码来源:brw_wm_emit.c


示例2: merge_edgeflags

static void merge_edgeflags( struct brw_clip_compile *c )
{
   struct brw_compile *p = &c->func;
   struct brw_reg tmp0 = get_element_ud(c->reg.tmp0, 0);

   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));

   /* Get away with using reg.vertex because we know that this is not
    * a _3DPRIM_TRISTRIP_REVERSE:
    */
   brw_IF(p, BRW_EXECUTE_1);
   {   
      brw_set_conditionalmod(p, BRW_CONDITIONAL_EQ);
      brw_AND(p, vec1(brw_null_reg()), get_element_ud(c->reg.R0, 2), brw_imm_ud(1<<8));
      brw_MOV(p, byte_offset(c->reg.vertex[0],
                             brw_varying_to_offset(&c->vue_map,
                                                   VARYING_SLOT_EDGE)),
              brw_imm_f(0));
      brw_set_predicate_control(p, BRW_PREDICATE_NONE);

      brw_set_conditionalmod(p, BRW_CONDITIONAL_EQ);
      brw_AND(p, vec1(brw_null_reg()), get_element_ud(c->reg.R0, 2), brw_imm_ud(1<<9));
      brw_MOV(p, byte_offset(c->reg.vertex[2],
                             brw_varying_to_offset(&c->vue_map,
                                                   VARYING_SLOT_EDGE)),
              brw_imm_f(0));
      brw_set_predicate_control(p, BRW_PREDICATE_NONE);
   }
   brw_ENDIF(p);
}
开发者ID:UIKit0，项目名称:mesa-1，代码行数:35，代码来源:brw_clip_unfilled.c


示例3: emit_pixel_w

static void emit_pixel_w( struct brw_wm_compile *c,
		struct prog_instruction *inst)
{
    struct brw_compile *p = &c->func;
    GLuint mask = inst->DstReg.WriteMask;
    if (mask & WRITEMASK_W) {
	struct brw_reg dst, src0, delta0, delta1;
	struct brw_reg interp3;

	dst = get_dst_reg(c, inst, 3, 1);
	src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
	delta0 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
	delta1 = get_src_reg(c, &inst->SrcReg[1], 1, 1);

	interp3 = brw_vec1_grf(src0.nr+1, 4);
	/* Calc 1/w - just linterp wpos[3] optimized by putting the
	 * result straight into a message reg.
	 */
	brw_LINE(p, brw_null_reg(), interp3, delta0);
	brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), delta1);

	/* Calc w */
	brw_math_16( p, dst,
		BRW_MATH_FUNCTION_INV,
		BRW_MATH_SATURATE_NONE,
		2, brw_null_reg(),
		BRW_MATH_PRECISION_FULL);
    }
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:29，代码来源:brw_wm_glsl.c


示例4: emit_pixel_w

void emit_pixel_w(struct brw_wm_compile *c,
		  const struct brw_reg *dst,
		  GLuint mask,
		  const struct brw_reg *arg0,
		  const struct brw_reg *deltas)
{
   struct brw_compile *p = &c->func;
   struct intel_context *intel = &p->brw->intel;
   struct brw_reg src;
   struct brw_reg temp_dst;

   if (intel->gen >= 6)
	temp_dst = dst[3];
   else
	temp_dst = brw_message_reg(2);

   assert(intel->gen < 6);

   /* Don't need this if all you are doing is interpolating color, for
    * instance.
    */
   if (mask & WRITEMASK_W) {      
      struct brw_reg interp3 = brw_vec1_grf(arg0[0].nr+1, 4);

      /* Calc 1/w - just linterp wpos[3] optimized by putting the
       * result straight into a message reg.
       */
      if (can_do_pln(intel, deltas)) {
	 brw_PLN(p, temp_dst, interp3, deltas[0]);
      } else {
	 brw_LINE(p, brw_null_reg(), interp3, deltas[0]);
	 brw_MAC(p, temp_dst, suboffset(interp3, 1), deltas[1]);
      }

      /* Calc w */
      if (intel->gen >= 6)
	 src = temp_dst;
      else
	 src = brw_null_reg();

      if (c->dispatch_width == 16) {
	 brw_math_16(p, dst[3],
		     BRW_MATH_FUNCTION_INV,
		     BRW_MATH_SATURATE_NONE,
		     2, src,
		     BRW_MATH_PRECISION_FULL);
      } else {
	 brw_math(p, dst[3],
		  BRW_MATH_FUNCTION_INV,
		  BRW_MATH_SATURATE_NONE,
		  2, src,
		  BRW_MATH_DATA_VECTOR,
		  BRW_MATH_PRECISION_FULL);
      }
   }
}
开发者ID:mlankhorst，项目名称:Mesa-3D，代码行数:56，代码来源:brw_wm_emit.c


示例5: emit_math2

static void emit_math2( struct brw_compile *p, 
			GLuint function,
			const struct brw_reg *dst,
			GLuint mask,
			const struct brw_reg *arg0,
			const struct brw_reg *arg1)
{
   if (!(mask & WRITEMASK_XYZW))
      return; /* Do not emit dead code*/

   assert((mask & WRITEMASK_XYZW) == WRITEMASK_X);

   brw_push_insn_state(p);

   brw_set_compression_control(p, BRW_COMPRESSION_NONE);
   brw_MOV(p, brw_message_reg(2), arg0[0]);
   brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
   brw_MOV(p, brw_message_reg(4), sechalf(arg0[0]));

   brw_set_compression_control(p, BRW_COMPRESSION_NONE);
   brw_MOV(p, brw_message_reg(3), arg1[0]);
   brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
   brw_MOV(p, brw_message_reg(5), sechalf(arg1[0]));

   
   /* Send two messages to perform all 16 operations:
    */
   brw_set_compression_control(p, BRW_COMPRESSION_NONE);
   brw_math(p, 
	    dst[0],
	    function,
	    (mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
	    2,
	    brw_null_reg(),
	    BRW_MATH_DATA_VECTOR,
	    BRW_MATH_PRECISION_FULL);

   brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
   brw_math(p, 
	    offset(dst[0],1),
	    function,
	    (mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
	    4,
	    brw_null_reg(),
	    BRW_MATH_DATA_VECTOR,
	    BRW_MATH_PRECISION_FULL);
   
   brw_pop_insn_state(p);
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:49，代码来源:brw_wm_emit.c


示例6: emit_lit

static void emit_lit( struct brw_compile *p, 
		      const struct brw_reg *dst,
		      GLuint mask,
		      const struct brw_reg *arg0 )
{
   assert((mask & WRITEMASK_XW) == 0);

   if (mask & WRITEMASK_Y) {
      brw_set_saturate(p, (mask & SATURATE) ? 1 : 0);
      brw_MOV(p, dst[1], arg0[0]);
      brw_set_saturate(p, 0);
   }

   if (mask & WRITEMASK_Z) {
      emit_math2(p, BRW_MATH_FUNCTION_POW,
		 &dst[2],
		 WRITEMASK_X | (mask & SATURATE),
		 &arg0[1],
		 &arg0[3]);
   }

   /* Ordinarily you'd use an iff statement to skip or shortcircuit
    * some of the POW calculations above, but 16-wide iff statements
    * seem to lock c1 hardware, so this is a nasty workaround:
    */
   brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_LE, arg0[0], brw_imm_f(0));
   {
      if (mask & WRITEMASK_Y) 
	 brw_MOV(p, dst[1], brw_imm_f(0));

      if (mask & WRITEMASK_Z) 
	 brw_MOV(p, dst[2], brw_imm_f(0)); 
   }
   brw_set_predicate_control(p, BRW_PREDICATE_NONE);
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:35，代码来源:brw_wm_emit.c


示例7: emit_kil

/* Kill pixel - set execution mask to zero for those pixels which
 * fail.
 */
static void emit_kil( struct brw_wm_compile *c,
		      struct brw_reg *arg0)
{
   struct brw_compile *p = &c->func;
   struct intel_context *intel = &p->brw->intel;
   struct brw_reg pixelmask;
   GLuint i, j;

   if (intel->gen >= 6)
      pixelmask = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW);
   else
      pixelmask = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);

   for (i = 0; i < 4; i++) {
      /* Check if we've already done the comparison for this reg
       * -- common when someone does KIL TEMP.wwww.
       */
      for (j = 0; j < i; j++) {
	 if (memcmp(&arg0[j], &arg0[i], sizeof(arg0[0])) == 0)
	    break;
      }
      if (j != i)
	 continue;

      brw_push_insn_state(p);
      brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_GE, arg0[i], brw_imm_f(0));   
      brw_set_predicate_control_flag_value(p, 0xff);
      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
      brw_AND(p, pixelmask, brw_flag_reg(), pixelmask);
      brw_pop_insn_state(p);
   }
}
开发者ID:mlankhorst，项目名称:Mesa-3D，代码行数:35，代码来源:brw_wm_emit.c


示例8: emit_pinterp

static void emit_pinterp(struct brw_wm_compile *c,
		struct prog_instruction *inst)
{
    struct brw_compile *p = &c->func;
    GLuint mask = inst->DstReg.WriteMask;

    struct brw_reg interp[4];
    struct brw_reg dst, delta0, delta1;
    struct brw_reg src0, w;

    src0 = get_src_reg(c, &inst->SrcReg[0], 0, 1);
    delta0 = get_src_reg(c, &inst->SrcReg[1], 0, 1);
    delta1 = get_src_reg(c, &inst->SrcReg[1], 1, 1);
    w = get_src_reg(c, &inst->SrcReg[2], 3, 1);
    GLuint nr = src0.nr;
    int i;

    interp[0] = brw_vec1_grf(nr, 0);
    interp[1] = brw_vec1_grf(nr, 4);
    interp[2] = brw_vec1_grf(nr+1, 0);
    interp[3] = brw_vec1_grf(nr+1, 4);

    for(i = 0; i < 4; i++ ) {
	if (mask & (1<<i)) {
	    dst = get_dst_reg(c, inst, i, 1);
	    brw_LINE(p, brw_null_reg(), interp[i], delta0);
	    brw_MAC(p, dst, suboffset(interp[i],1), 
		    delta1);
	    brw_MUL(p, dst, dst, w);
	}
    }
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:32，代码来源:brw_wm_glsl.c


示例9: do_twoside_color

static void do_twoside_color( struct brw_sf_compile *c )
{
   struct brw_compile *p = &c->func;
   GLuint backface_conditional = c->key.frontface_ccw ? BRW_CONDITIONAL_G : BRW_CONDITIONAL_L;

   /* Already done in clip program:
    */
   if (c->key.primitive == SF_UNFILLED_TRIS)
      return;

   /* If the vertex shader provides backface color, do the selection. The VS
    * promises to set up the front color if the backface color is provided, but
    * it may contain junk if never written to.
    */
   if (!(have_attr(c, VARYING_SLOT_COL0) && have_attr(c, VARYING_SLOT_BFC0)) &&
       !(have_attr(c, VARYING_SLOT_COL1) && have_attr(c, VARYING_SLOT_BFC1)))
      return;

   /* Need to use BRW_EXECUTE_4 and also do an 4-wide compare in order
    * to get all channels active inside the IF.  In the clipping code
    * we run with NoMask, so it's not an option and we can use
    * BRW_EXECUTE_1 for all comparisions.
    */
   brw_CMP(p, vec4(brw_null_reg()), backface_conditional, c->det, brw_imm_f(0));
   brw_IF(p, BRW_EXECUTE_4);
   {
      switch (c->nr_verts) {
      case 3: copy_bfc(c, c->vert[2]);
      case 2: copy_bfc(c, c->vert[1]);
      case 1: copy_bfc(c, c->vert[0]);
      }
   }
   brw_ENDIF(p);
}
开发者ID:TechnoMancer，项目名称:mesa，代码行数:34，代码来源:brw_sf_emit.c


示例10: cull_direction

static void cull_direction( struct brw_clip_compile *c )
{
   struct brw_compile *p = &c->func;
   GLuint conditional;

   assert (!(c->key.fill_ccw == CLIP_CULL &&
	     c->key.fill_cw == CLIP_CULL));

   if (c->key.fill_ccw == CLIP_CULL)
      conditional = BRW_CONDITIONAL_GE;
   else
      conditional = BRW_CONDITIONAL_L;

   brw_CMP(p,
	   vec1(brw_null_reg()),
	   conditional,
	   get_element(c->reg.dir, 2),
	   brw_imm_f(0));

   brw_IF(p, BRW_EXECUTE_1);
   {
      brw_clip_kill_thread(c);
   }
   brw_ENDIF(p);
}
开发者ID:Thermionix，项目名称:Mesa-3D，代码行数:25，代码来源:brw_clip_unfilled.c


示例11: brw_vec8_grf

void
gen8_vec4_generator::generate_urb_write(vec4_instruction *ir, bool vs)
{
   struct brw_reg header = brw_vec8_grf(GEN7_MRF_HACK_START + ir->base_mrf, 0);

   /* Copy g0. */
   if (vs)
      MOV_RAW(header, brw_vec8_grf(0, 0));

   gen8_instruction *inst;
   if (!(ir->urb_write_flags & BRW_URB_WRITE_USE_CHANNEL_MASKS)) {
      /* Enable Channel Masks in the URB_WRITE_OWORD message header */
      default_state.access_mode = BRW_ALIGN_1;
      inst = OR(retype(brw_vec1_grf(GEN7_MRF_HACK_START + ir->base_mrf, 5),
                       BRW_REGISTER_TYPE_UD),
                retype(brw_vec1_grf(0, 5), BRW_REGISTER_TYPE_UD),
                brw_imm_ud(0xff00));
      gen8_set_mask_control(inst, BRW_MASK_DISABLE);
      default_state.access_mode = BRW_ALIGN_16;
   }

   inst = next_inst(BRW_OPCODE_SEND);
   gen8_set_urb_message(brw, inst, ir->urb_write_flags, ir->mlen, 0, ir->offset,
                        true);
   gen8_set_dst(brw, inst, brw_null_reg());
   gen8_set_src0(brw, inst, header);
}
开发者ID:DirectFB，项目名称:mesa，代码行数:27，代码来源:gen8_vec4_generator.cpp


示例12: emit_unfilled_primitives

static void emit_unfilled_primitives( struct brw_clip_compile *c )
{
   struct brw_compile *p = &c->func;

   /* Direction culling has already been done.
    */
   if (c->key.fill_ccw != c->key.fill_cw &&
       c->key.fill_ccw != CLIP_CULL &&
       c->key.fill_cw != CLIP_CULL)
   {
      brw_CMP(p,
	      vec1(brw_null_reg()),
	      BRW_CONDITIONAL_GE,
	      get_element(c->reg.dir, 2),
	      brw_imm_f(0));

      brw_IF(p, BRW_EXECUTE_1);
      {
	 emit_primitives(c, c->key.fill_ccw, c->key.offset_ccw);
      }
      brw_ELSE(p);
      {
	 emit_primitives(c, c->key.fill_cw, c->key.offset_cw);
      }
      brw_ENDIF(p);
   }
   else if (c->key.fill_cw != CLIP_CULL) {
      emit_primitives(c, c->key.fill_cw, c->key.offset_cw);
   }
   else if (c->key.fill_ccw != CLIP_CULL) {
      emit_primitives(c, c->key.fill_ccw, c->key.offset_ccw);
   }
}
开发者ID:Thermionix，项目名称:Mesa-3D，代码行数:33，代码来源:brw_clip_unfilled.c


示例13: brw_emit_unfilled_clip

void brw_emit_unfilled_clip( struct brw_clip_compile *c )
{
   struct brw_compile *p = &c->func;

   c->need_direction = ((c->key.offset_ccw || c->key.offset_cw) ||
			(c->key.fill_ccw != c->key.fill_cw) ||
			c->key.fill_ccw == CLIP_CULL ||
			c->key.fill_cw == CLIP_CULL ||
			c->key.copy_bfc_cw ||
			c->key.copy_bfc_ccw);

   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(brw_clip_have_varying(c, VARYING_SLOT_EDGE));

   if (c->key.fill_ccw == CLIP_CULL &&
       c->key.fill_cw == CLIP_CULL) {
      brw_clip_kill_thread(c);
      return;
   }

   merge_edgeflags(c);

   /* Need to use the inlist indirection here:
    */
   if (c->need_direction)
      compute_tri_direction(c);

   if (c->key.fill_ccw == CLIP_CULL ||
       c->key.fill_cw == CLIP_CULL)
      cull_direction(c);

   if (c->key.offset_ccw ||
       c->key.offset_cw)
      compute_offset(c);

   if (c->key.copy_bfc_ccw ||
       c->key.copy_bfc_cw)
      copy_bfc(c);

   /* Need to do this whether we clip or not:
    */
   if (c->has_flat_shading)
      brw_clip_tri_flat_shade(c);

   brw_clip_init_clipmask(c);
   brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_NZ, c->reg.planemask, brw_imm_ud(0));
   brw_IF(p, BRW_EXECUTE_1);
   {
      brw_clip_init_planes(c);
      brw_clip_tri(c);
      check_nr_verts(c);
   }
   brw_ENDIF(p);

   emit_unfilled_primitives(c);
   brw_clip_kill_thread(c);
}
开发者ID:Thermionix，项目名称:Mesa-3D，代码行数:60，代码来源:brw_clip_unfilled.c


示例14: emit_linterp

void emit_linterp(struct brw_compile *p,
		  const struct brw_reg *dst,
		  GLuint mask,
		  const struct brw_reg *arg0,
		  const struct brw_reg *deltas)
{
   struct intel_context *intel = &p->brw->intel;
   struct brw_reg interp[4];
   GLuint nr = arg0[0].nr;
   GLuint i;

   interp[0] = brw_vec1_grf(nr, 0);
   interp[1] = brw_vec1_grf(nr, 4);
   interp[2] = brw_vec1_grf(nr+1, 0);
   interp[3] = brw_vec1_grf(nr+1, 4);

   for (i = 0; i < 4; i++) {
      if (mask & (1<<i)) {
	 if (intel->gen >= 6) {
	    brw_PLN(p, dst[i], interp[i], brw_vec8_grf(2, 0));
	 } else if (can_do_pln(intel, deltas)) {
	    brw_PLN(p, dst[i], interp[i], deltas[0]);
	 } else {
	    brw_LINE(p, brw_null_reg(), interp[i], deltas[0]);
	    brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]);
	 }
      }
   }
}
开发者ID:mlankhorst，项目名称:Mesa-3D，代码行数:29，代码来源:brw_wm_emit.c


示例15: brw_clip_tri_flat_shade

void brw_clip_tri_flat_shade( struct brw_clip_compile *c )
{
   struct brw_compile *p = &c->func;
   struct brw_instruction *is_poly;
   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, 
	   tmp0,
	   brw_imm_ud(_3DPRIM_POLYGON));

   is_poly = brw_IF(p, BRW_EXECUTE_1);
   {   
      brw_clip_copy_colors(c, 1, 0);
      brw_clip_copy_colors(c, 2, 0);
   }
   is_poly = brw_ELSE(p, is_poly);
   {
      brw_clip_copy_colors(c, 0, 2);
      brw_clip_copy_colors(c, 1, 2);
   }
   brw_ENDIF(p, is_poly);
}
开发者ID:1065672644894730302，项目名称:Chromium，代码行数:25，代码来源:brw_clip_tri.c


示例16: emit_pinterp

static void emit_pinterp( struct brw_compile *p, 
			  const struct brw_reg *dst,
			  GLuint mask,
			  const struct brw_reg *arg0,
			  const struct brw_reg *deltas,
			  const struct brw_reg *w)
{
   struct brw_reg interp[4];
   GLuint nr = arg0[0].nr;
   GLuint i;

   interp[0] = brw_vec1_grf(nr, 0);
   interp[1] = brw_vec1_grf(nr, 4);
   interp[2] = brw_vec1_grf(nr+1, 0);
   interp[3] = brw_vec1_grf(nr+1, 4);

   for(i = 0; i < 4; i++ ) {
      if (mask & (1<<i)) {
	 brw_LINE(p, brw_null_reg(), interp[i], deltas[0]);
	 brw_MAC(p, dst[i], suboffset(interp[i],1), deltas[1]);
      }
   }
   for(i = 0; i < 4; i++ ) {
      if (mask & (1<<i)) {
	 brw_MUL(p, dst[i], dst[i], w[3]);
      }
   }
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:28，代码来源:brw_wm_emit.c


示例17: get_reg

static struct brw_reg 
get_reg(struct brw_wm_compile *c, int file, int index, int component, int nr, GLuint neg, GLuint abs)
{
    struct brw_reg reg;
    switch (file) {
	case PROGRAM_STATE_VAR:
	case PROGRAM_CONSTANT:
	case PROGRAM_UNIFORM:
	    file = PROGRAM_STATE_VAR;
	    break;
	case PROGRAM_UNDEFINED:
	    return brw_null_reg();	
	default:
	    break;
    }

    if(c->wm_regs[file][index][component].inited)
	reg = c->wm_regs[file][index][component].reg;
    else 
	reg = brw_vec8_grf(c->reg_index, 0);

    if(!c->wm_regs[file][index][component].inited) {
	set_reg(c, file, index, component, reg);
	c->reg_index++;
    }

    if (neg & (1<< component)) {
	reg = negate(reg);
    }
    if (abs)
	reg = brw_abs(reg);
    return reg;
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:33，代码来源:brw_wm_glsl.c


示例18: emit_min

static void emit_min(struct brw_wm_compile *c,
		struct prog_instruction *inst)
{
    struct brw_compile *p = &c->func;
    GLuint mask = inst->DstReg.WriteMask;
    struct brw_reg src0, src1, dst;
    int i;
    brw_push_insn_state(p);
    for (i = 0; i < 4; i++) {
	if (mask & (1<<i)) {
	    dst = get_dst_reg(c, inst, i, 1);
	    src0 = get_src_reg(c, &inst->SrcReg[0], i, 1);
	    src1 = get_src_reg(c, &inst->SrcReg[1], i, 1);
	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
	    brw_MOV(p, dst, src0);
	    brw_set_saturate(p, 0);

	    brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, src1, src0);
	    brw_set_saturate(p, (inst->SaturateMode != SATURATE_OFF) ? 1 : 0);
	    brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);
	    brw_MOV(p, dst, src1);
	    brw_set_saturate(p, 0);
	    brw_set_predicate_control_flag_value(p, 0xff);
	}
    }
    brw_pop_insn_state(p);
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:27，代码来源:brw_wm_glsl.c


示例19: emit_frontfacing

/* Sets the destination channels to 1.0 or 0.0 according to glFrontFacing. */
void emit_frontfacing(struct brw_compile *p,
		      const struct brw_reg *dst,
		      GLuint mask)
{
   struct brw_reg r1_6ud = retype(brw_vec1_grf(1, 6), BRW_REGISTER_TYPE_UD);
   GLuint i;

   if (!(mask & WRITEMASK_XYZW))
      return;

   for (i = 0; i < 4; i++) {
      if (mask & (1<<i)) {
	 brw_MOV(p, dst[i], brw_imm_f(0.0));
      }
   }

   /* bit 31 is "primitive is back face", so checking < (1 << 31) gives
    * us front face
    */
   brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, r1_6ud, brw_imm_ud(1 << 31));
   for (i = 0; i < 4; i++) {
      if (mask & (1<<i)) {
	 brw_MOV(p, dst[i], brw_imm_f(1.0));
      }
   }
   brw_set_predicate_control_flag_value(p, 0xff);
}
开发者ID:mlankhorst，项目名称:Mesa-3D，代码行数:28，代码来源:brw_wm_emit.c


示例20: fire_fb_write

static void fire_fb_write( struct brw_wm_compile *c,
			   GLuint base_reg,
			   GLuint nr,
			   GLuint target,
			   GLuint eot )
{
   struct brw_compile *p = &c->func;
   
   /* Pass through control information:
    */
/*  mov (8) m1.0<1>:ud   r1.0<8;8,1>:ud   { Align1 NoMask } */
   {
      brw_push_insn_state(p);
      brw_set_mask_control(p, BRW_MASK_DISABLE); /* ? */
      brw_set_compression_control(p, BRW_COMPRESSION_NONE);
      brw_MOV(p, 
	       brw_message_reg(base_reg + 1),
	       brw_vec8_grf(1, 0));
      brw_pop_insn_state(p);
   }

   /* Send framebuffer write message: */
/*  send (16) null.0<1>:uw m0               r0.0<8;8,1>:uw   0x85a04000:ud    { Align1 EOT } */
   brw_fb_WRITE(p,
		retype(vec16(brw_null_reg()), BRW_REGISTER_TYPE_UW),
		base_reg,
		retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW),
		target,		
		nr,
		0, 
		eot);
}
开发者ID:Multi2Sim，项目名称:m2s-bench-parsec-3.0-src，代码行数:32，代码来源:brw_wm_emit.c



注：本文中的brw_null_reg函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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