示例#1
0
static void
fs_lower_opcode_kil(struct toy_compiler *tc, struct toy_inst *inst)
{
   struct toy_dst pixel_mask_dst;
   struct toy_src f0, pixel_mask;
   struct toy_inst *tmp;

   /* lower half of r1.7:ud */
   pixel_mask_dst = tdst_uw(tdst(TOY_FILE_GRF, 1, 7 * 4));
   pixel_mask = tsrc_rect(tsrc_from(pixel_mask_dst), TOY_RECT_010);

   f0 = tsrc_rect(tsrc_uw(tsrc(TOY_FILE_ARF, BRW_ARF_FLAG, 0)), TOY_RECT_010);

   /* KILP or KIL */
   if (tsrc_is_null(inst->src[0])) {
      struct toy_src dummy = tsrc_uw(tsrc(TOY_FILE_GRF, 0, 0));
      struct toy_dst f0_dst = tdst_uw(tdst(TOY_FILE_ARF, BRW_ARF_FLAG, 0));

      /* create a mask that masks out all pixels */
      tmp = tc_MOV(tc, f0_dst, tsrc_rect(tsrc_imm_uw(0xffff), TOY_RECT_010));
      tmp->exec_size = BRW_EXECUTE_1;
      tmp->mask_ctrl = BRW_MASK_DISABLE;

      tc_CMP(tc, tdst_null(), dummy, dummy, BRW_CONDITIONAL_NEQ);

      /* swapping the two src operands breaks glBitmap()!? */
      tmp = tc_AND(tc, pixel_mask_dst, f0, pixel_mask);
      tmp->exec_size = BRW_EXECUTE_1;
      tmp->mask_ctrl = BRW_MASK_DISABLE;
   }
   else {
      struct toy_src src[4];
      int i;

      tsrc_transpose(inst->src[0], src);
      /* mask out killed pixels */
      for (i = 0; i < 4; i++) {
         tc_CMP(tc, tdst_null(), src[i], tsrc_imm_f(0.0f),
               BRW_CONDITIONAL_GE);

         /* swapping the two src operands breaks glBitmap()!? */
         tmp = tc_AND(tc, pixel_mask_dst, f0, pixel_mask);
         tmp->exec_size = BRW_EXECUTE_1;
         tmp->mask_ctrl = BRW_MASK_DISABLE;
      }
   }

   tc_discard_inst(tc, inst);
}
示例#2
0
static void
fetch_face(struct fs_compile_context *fcc, struct toy_dst dst)
{
   struct toy_compiler *tc = &fcc->tc;
   const struct toy_src r0 = tsrc_d(tsrc(TOY_FILE_GRF, 0, 0));
   struct toy_dst tmp_f, tmp;
   struct toy_dst real_dst[4];

   tdst_transpose(dst, real_dst);

   tmp_f = tc_alloc_tmp(tc);
   tmp = tdst_d(tmp_f);
   tc_SHR(tc, tmp, tsrc_rect(r0, TOY_RECT_010), tsrc_imm_d(15));
   tc_AND(tc, tmp, tsrc_from(tmp), tsrc_imm_d(1));
   tc_MOV(tc, tmp_f, tsrc_from(tmp));

   /* convert to 1.0 and -1.0 */
   tc_MUL(tc, tmp_f, tsrc_from(tmp_f), tsrc_imm_f(-2.0f));
   tc_ADD(tc, real_dst[0], tsrc_from(tmp_f), tsrc_imm_f(1.0f));

   tc_MOV(tc, real_dst[1], tsrc_imm_f(0.0f));
   tc_MOV(tc, real_dst[2], tsrc_imm_f(0.0f));
   tc_MOV(tc, real_dst[3], tsrc_imm_f(1.0f));
}
示例#3
0
static void
gs_setup_vars(struct gs_compile_context *gcc)
{
   int grf = gcc->first_free_grf;
   int i;

   gcc->vars.urb_write_header = tdst_d(tdst(TOY_FILE_GRF, grf, 0));
   grf++;

   gcc->vars.tmp = tdst(TOY_FILE_GRF, grf, 0);
   grf++;

   if (gcc->write_so) {
      gcc->vars.buffer_needed = gcc->out_vue_min_count - 1;
      for (i = 0; i < gcc->vars.buffer_needed; i++) {
         gcc->vars.buffers[i] = tdst(TOY_FILE_GRF, grf, 0);
         grf += gcc->shader->out.count;
      }

      gcc->vars.so_written = tdst_d(tdst(TOY_FILE_GRF, grf, 0));
      grf++;

      gcc->vars.so_index = tdst_d(tdst(TOY_FILE_GRF, grf, 0));
      grf++;
   }

   gcc->first_free_grf = grf;

   if (!gcc->tgsi.reg_mapping) {
      for (i = 0; i < gcc->shader->out.count; i++)
         gcc->vars.tgsi_outs[i] = tsrc(TOY_FILE_GRF, grf++, 0);

      gcc->first_free_grf = grf;
      return;
   }

   for (i = 0; i < gcc->shader->out.count; i++) {
      const int slot = gcc->output_map[i];
      const int vrf = (slot >= 0) ? toy_tgsi_get_vrf(&gcc->tgsi,
            TGSI_FILE_OUTPUT, 0, gcc->tgsi.outputs[slot].index) : -1;

      if (vrf >= 0)
         gcc->vars.tgsi_outs[i] = tsrc(TOY_FILE_VRF, vrf, 0);
      else
         gcc->vars.tgsi_outs[i] = (i == 0) ? tsrc_imm_d(0) : tsrc_imm_f(0.0f);
   }
}
static void
vs_lower_opcode_tgsi_in(struct vs_compile_context *vcc,
                        struct toy_dst dst, int dim, int idx)
{
   struct toy_compiler *tc = &vcc->tc;
   int slot;

   assert(!dim);

   slot = toy_tgsi_find_input(&vcc->tgsi, idx);
   if (slot >= 0) {
      const int first_in_grf = vcc->first_vue_grf +
         (vcc->shader->in.count - vcc->tgsi.num_inputs);
      const int grf = first_in_grf + vcc->tgsi.inputs[slot].semantic_index;
      const struct toy_src src = tsrc(TOY_FILE_GRF, grf, 0);

      tc_MOV(tc, dst, src);
   }
   else {
      /* undeclared input */
      tc_MOV(tc, dst, tsrc_imm_f(0.0f));
   }
}
示例#5
0
static void
gs_lower_opcode_tgsi_in(struct gs_compile_context *gcc,
                        struct toy_dst dst, int dim, int idx)
{
   struct toy_compiler *tc = &gcc->tc;
   struct toy_src attr;
   int slot, reg = -1, subreg;

   slot = toy_tgsi_find_input(&gcc->tgsi, idx);
   if (slot >= 0) {
      int i;

      for (i = 0; i < gcc->variant->u.gs.num_inputs; i++) {
         if (gcc->variant->u.gs.semantic_names[i] ==
               gcc->tgsi.inputs[slot].semantic_name &&
               gcc->variant->u.gs.semantic_indices[i] ==
               gcc->tgsi.inputs[slot].semantic_index) {
            reg = i / 2;
            subreg = (i % 2) * 4;
            break;
         }
      }
   }

   if (reg < 0) {
      tc_MOV(tc, dst, tsrc_imm_f(0.0f));
      return;
   }

   /* fix vertex ordering for GEN6_3DPRIM_TRISTRIP_REVERSE */
   if (gcc->in_vue_count == 3 && dim < 2) {
      struct toy_inst *inst;

      /* get PrimType */
      inst = tc_AND(tc, tdst_d(gcc->vars.tmp),
            tsrc_offset(gcc->payload.header, 0, 2), tsrc_imm_d(0x1f));
      inst->exec_size = GEN6_EXECSIZE_1;
      inst->src[0] = tsrc_rect(inst->src[0], TOY_RECT_010);
      inst->src[1] = tsrc_rect(inst->src[1], TOY_RECT_010);

      inst = tc_CMP(tc, tdst_null(), tsrc_from(tdst_d(gcc->vars.tmp)),
            tsrc_imm_d(GEN6_3DPRIM_TRISTRIP_REVERSE), GEN6_COND_NZ);
      inst->src[0] = tsrc_rect(inst->src[0], TOY_RECT_010);

      attr = tsrc_offset(gcc->payload.vues[dim], reg, subreg);
      inst = tc_MOV(tc, dst, attr);
      inst->pred_ctrl = GEN6_PREDCTRL_NORMAL;

      /* swap IN[0] and IN[1] for GEN6_3DPRIM_TRISTRIP_REVERSE */
      dim = !dim;

      attr = tsrc_offset(gcc->payload.vues[dim], reg, subreg);
      inst = tc_MOV(tc, dst, attr);
      inst->pred_ctrl = GEN6_PREDCTRL_NORMAL;
      inst->pred_inv = true;
   }
   else {
      attr = tsrc_offset(gcc->payload.vues[dim], reg, subreg);
      tc_MOV(tc, dst, attr);
   }


}
/**
 * Collect the toy registers to be written to the VUE.
 */
static int
vs_collect_outputs(struct vs_compile_context *vcc, struct toy_src *outs)
{
   const struct toy_tgsi *tgsi = &vcc->tgsi;
   unsigned i;

   for (i = 0; i < vcc->shader->out.count; i++) {
      const int slot = vcc->output_map[i];
      const int vrf = (slot >= 0) ? toy_tgsi_get_vrf(tgsi,
            TGSI_FILE_OUTPUT, 0, tgsi->outputs[slot].index) : -1;
      struct toy_src src;

      if (vrf >= 0) {
         struct toy_dst dst;

         dst = tdst(TOY_FILE_VRF, vrf, 0);
         src = tsrc_from(dst);

         if (i == 0) {
            /* PSIZE is at channel W */
            tc_MOV(&vcc->tc, tdst_writemask(dst, TOY_WRITEMASK_W),
                  tsrc_swizzle1(src, TOY_SWIZZLE_X));

            /* the other channels are for the header */
            dst = tdst_d(dst);
            tc_MOV(&vcc->tc, tdst_writemask(dst, TOY_WRITEMASK_XYZ),
                  tsrc_imm_d(0));
         }
         else {
            /* initialize unused channels to 0.0f */
            if (tgsi->outputs[slot].undefined_mask) {
               dst = tdst_writemask(dst, tgsi->outputs[slot].undefined_mask);
               tc_MOV(&vcc->tc, dst, tsrc_imm_f(0.0f));
            }
         }
      }
      else {
         /* XXX this is too ugly */
         if (vcc->shader->out.semantic_names[i] == TGSI_SEMANTIC_CLIPDIST &&
             slot < 0) {
            /* ok, we need to compute clip distance */
            int clipvert_slot = -1, clipvert_vrf, j;

            for (j = 0; j < tgsi->num_outputs; j++) {
               if (tgsi->outputs[j].semantic_name ==
                     TGSI_SEMANTIC_CLIPVERTEX) {
                  clipvert_slot = j;
                  break;
               }
               else if (tgsi->outputs[j].semantic_name ==
                     TGSI_SEMANTIC_POSITION) {
                  /* remember pos, but keep looking */
                  clipvert_slot = j;
               }
            }

            clipvert_vrf = (clipvert_slot >= 0) ? toy_tgsi_get_vrf(tgsi,
                  TGSI_FILE_OUTPUT, 0, tgsi->outputs[clipvert_slot].index) : -1;
            if (clipvert_vrf >= 0) {
               struct toy_dst tmp = tc_alloc_tmp(&vcc->tc);
               struct toy_src clipvert = tsrc(TOY_FILE_VRF, clipvert_vrf, 0);
               int first_ucp, last_ucp;

               if (vcc->shader->out.semantic_indices[i]) {
                  first_ucp = 4;
                  last_ucp = MIN2(7, vcc->variant->u.vs.num_ucps - 1);
               }
               else {
                  first_ucp = 0;
                  last_ucp = MIN2(3, vcc->variant->u.vs.num_ucps - 1);
               }

               for (j = first_ucp; j <= last_ucp; j++) {
                  const int plane_grf = vcc->first_ucp_grf + j / 2;
                  const int plane_subreg = (j & 1) * 16;
                  const struct toy_src plane = tsrc_rect(tsrc(TOY_FILE_GRF,
                           plane_grf, plane_subreg), TOY_RECT_041);
                  const unsigned writemask = 1 << ((j >= 4) ? j - 4 : j);

                  tc_DP4(&vcc->tc, tdst_writemask(tmp, writemask),
                        clipvert, plane);
               }

               src = tsrc_from(tmp);
            }
            else {
               src = tsrc_imm_f(0.0f);
            }
         }
         else {
            src = (i == 0) ? tsrc_imm_d(0) : tsrc_imm_f(0.0f);
         }
      }

      outs[i] = src;
   }

   return i;
}
static void
vs_lower_opcode_tgsi_sampling(struct vs_compile_context *vcc,
                              struct toy_inst *inst)
{
   struct toy_compiler *tc = &vcc->tc;
   struct toy_src desc;
   struct toy_dst dst, tmp;
   unsigned sampler_index;
   int swizzles[4], i;
   unsigned swizzle_zero_mask, swizzle_one_mask, swizzle_normal_mask;
   bool need_filter;

   desc = vs_prepare_tgsi_sampling(vcc, inst,
         vcc->first_free_mrf, &sampler_index);

   switch (inst->opcode) {
   case TOY_OPCODE_TGSI_TXF:
   case TOY_OPCODE_TGSI_TXQ:
   case TOY_OPCODE_TGSI_TXQ_LZ:
      need_filter = false;
      break;
   default:
      need_filter = true;
      break;
   }

   toy_compiler_lower_to_send(tc, inst, false, GEN6_SFID_SAMPLER);
   inst->src[0] = tsrc(TOY_FILE_MRF, vcc->first_free_mrf, 0);
   inst->src[1] = desc;

   /* write to a temp first */
   tmp = tc_alloc_tmp(tc);
   tmp.type = inst->dst.type;
   dst = inst->dst;
   inst->dst = tmp;

   tc_move_inst(tc, inst);

   if (need_filter) {
      assert(sampler_index < vcc->variant->num_sampler_views);
      swizzles[0] = vcc->variant->sampler_view_swizzles[sampler_index].r;
      swizzles[1] = vcc->variant->sampler_view_swizzles[sampler_index].g;
      swizzles[2] = vcc->variant->sampler_view_swizzles[sampler_index].b;
      swizzles[3] = vcc->variant->sampler_view_swizzles[sampler_index].a;
   }
   else {
      swizzles[0] = PIPE_SWIZZLE_RED;
      swizzles[1] = PIPE_SWIZZLE_GREEN;
      swizzles[2] = PIPE_SWIZZLE_BLUE;
      swizzles[3] = PIPE_SWIZZLE_ALPHA;
   }

   swizzle_zero_mask = 0;
   swizzle_one_mask = 0;
   swizzle_normal_mask = 0;
   for (i = 0; i < 4; i++) {
      switch (swizzles[i]) {
      case PIPE_SWIZZLE_ZERO:
         swizzle_zero_mask |= 1 << i;
         swizzles[i] = i;
         break;
      case PIPE_SWIZZLE_ONE:
         swizzle_one_mask |= 1 << i;
         swizzles[i] = i;
         break;
      default:
         swizzle_normal_mask |= 1 << i;
         break;
      }
   }

   /* swizzle the results */
   if (swizzle_normal_mask) {
      tc_MOV(tc, tdst_writemask(dst, swizzle_normal_mask),
            tsrc_swizzle(tsrc_from(tmp), swizzles[0],
               swizzles[1], swizzles[2], swizzles[3]));
   }
   if (swizzle_zero_mask)
      tc_MOV(tc, tdst_writemask(dst, swizzle_zero_mask), tsrc_imm_f(0.0f));
   if (swizzle_one_mask)
      tc_MOV(tc, tdst_writemask(dst, swizzle_one_mask), tsrc_imm_f(1.0f));
}
示例#8
0
static void
fs_lower_opcode_tgsi_sampling(struct fs_compile_context *fcc,
                              struct toy_inst *inst)
{
   struct toy_compiler *tc = &fcc->tc;
   struct toy_dst dst[4], tmp[4];
   struct toy_src desc;
   unsigned sampler_index;
   int swizzles[4], i;
   bool need_filter;

   desc = fs_prepare_tgsi_sampling(tc, inst,
         fcc->first_free_mrf,
         fcc->variant->saturate_tex_coords,
         &sampler_index);

   switch (inst->opcode) {
   case TOY_OPCODE_TGSI_TXF:
   case TOY_OPCODE_TGSI_TXQ:
   case TOY_OPCODE_TGSI_TXQ_LZ:
      need_filter = false;
      break;
   default:
      need_filter = true;
      break;
   }

   toy_compiler_lower_to_send(tc, inst, false, BRW_SFID_SAMPLER);
   inst->src[0] = tsrc(TOY_FILE_MRF, fcc->first_free_mrf, 0);
   inst->src[1] = desc;
   for (i = 2; i < Elements(inst->src); i++)
      inst->src[i] = tsrc_null();

   /* write to temps first */
   tc_alloc_tmp4(tc, tmp);
   tdst_transpose(inst->dst, dst);
   inst->dst = tmp[0];

   tc_move_inst(tc, inst);

   if (need_filter) {
      assert(sampler_index < fcc->variant->num_sampler_views);
      swizzles[0] = fcc->variant->sampler_view_swizzles[sampler_index].r;
      swizzles[1] = fcc->variant->sampler_view_swizzles[sampler_index].g;
      swizzles[2] = fcc->variant->sampler_view_swizzles[sampler_index].b;
      swizzles[3] = fcc->variant->sampler_view_swizzles[sampler_index].a;
   }
   else {
      swizzles[0] = PIPE_SWIZZLE_RED;
      swizzles[1] = PIPE_SWIZZLE_GREEN;
      swizzles[2] = PIPE_SWIZZLE_BLUE;
      swizzles[3] = PIPE_SWIZZLE_ALPHA;
   }

   /* swizzle the results */
   for (i = 0; i < 4; i++) {
      switch (swizzles[i]) {
      case PIPE_SWIZZLE_ZERO:
         tc_MOV(tc, dst[i], tsrc_imm_f(0.0f));
         break;
      case PIPE_SWIZZLE_ONE:
         tc_MOV(tc, dst[i], tsrc_imm_f(1.0f));
         break;
      default:
         tc_MOV(tc, dst[i], tsrc_from(tmp[swizzles[i]]));
         break;
      }
   }
}
示例#9
0
static void
fetch_position(struct fs_compile_context *fcc, struct toy_dst dst)
{
   struct toy_compiler *tc = &fcc->tc;
   const struct toy_src src_z =
      tsrc(TOY_FILE_GRF, fcc->payloads[0].source_depth, 0);
   const struct toy_src src_w =
      tsrc(TOY_FILE_GRF, fcc->payloads[0].source_w, 0);
   const int fb_height =
      (fcc->variant->u.fs.fb_height) ? fcc->variant->u.fs.fb_height : 1;
   const bool origin_upper_left =
      (fcc->tgsi.props.fs_coord_origin == TGSI_FS_COORD_ORIGIN_UPPER_LEFT);
   const bool pixel_center_integer =
      (fcc->tgsi.props.fs_coord_pixel_center ==
       TGSI_FS_COORD_PIXEL_CENTER_INTEGER);
   struct toy_src subspan_x, subspan_y;
   struct toy_dst tmp, tmp_uw;
   struct toy_dst real_dst[4];

   tdst_transpose(dst, real_dst);

   subspan_x = tsrc_uw(tsrc(TOY_FILE_GRF, 1, 2 * 4));
   subspan_x = tsrc_rect(subspan_x, TOY_RECT_240);

   subspan_y = tsrc_offset(subspan_x, 0, 1);

   tmp_uw = tdst_uw(tc_alloc_tmp(tc));
   tmp = tc_alloc_tmp(tc);

   /* X */
   tc_ADD(tc, tmp_uw, subspan_x, tsrc_imm_v(0x10101010));
   tc_MOV(tc, tmp, tsrc_from(tmp_uw));
   if (pixel_center_integer)
      tc_MOV(tc, real_dst[0], tsrc_from(tmp));
   else
      tc_ADD(tc, real_dst[0], tsrc_from(tmp), tsrc_imm_f(0.5f));

   /* Y */
   tc_ADD(tc, tmp_uw, subspan_y, tsrc_imm_v(0x11001100));
   tc_MOV(tc, tmp, tsrc_from(tmp_uw));
   if (origin_upper_left && pixel_center_integer) {
      tc_MOV(tc, real_dst[1], tsrc_from(tmp));
   }
   else {
      struct toy_src y = tsrc_from(tmp);
      float offset = 0.0f;

      if (!pixel_center_integer)
         offset += 0.5f;

      if (!origin_upper_left) {
         offset += (float) (fb_height - 1);
         y = tsrc_negate(y);
      }

      tc_ADD(tc, real_dst[1], y, tsrc_imm_f(offset));
   }

   /* Z and W */
   tc_MOV(tc, real_dst[2], src_z);
   tc_INV(tc, real_dst[3], src_w);
}
示例#10
0
/**
 * Set up message registers and return the message descriptor for sampling.
 */
static struct toy_src
fs_prepare_tgsi_sampling(struct toy_compiler *tc, const struct toy_inst *inst,
                         int base_mrf, const uint32_t *saturate_coords,
                         unsigned *ret_sampler_index)
{
   unsigned simd_mode, msg_type, msg_len, sampler_index, binding_table_index;
   struct toy_src coords[4], ddx[4], ddy[4], bias_or_lod, ref_or_si;
   int num_coords, ref_pos, num_derivs;
   int sampler_src, param_size, i;

   switch (inst->exec_size) {
   case BRW_EXECUTE_8:
      simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
      param_size = 1;
      break;
   case BRW_EXECUTE_16:
      simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
      param_size = 2;
      break;
   default:
      tc_fail(tc, "unsupported execute size for sampling");
      return tsrc_null();
      break;
   }

   num_coords = toy_tgsi_get_texture_coord_dim(inst->tex.target, &ref_pos);
   tsrc_transpose(inst->src[0], coords);
   bias_or_lod = tsrc_null();
   ref_or_si = tsrc_null();
   num_derivs = 0;
   sampler_src = 1;

   /*
    * For TXD,
    *
    *   src0 := (x, y, z, w)
    *   src1 := ddx
    *   src2 := ddy
    *   src3 := sampler
    *
    * For TEX2, TXB2, and TXL2,
    *
    *   src0 := (x, y, z, w)
    *   src1 := (v or bias or lod, ...)
    *   src2 := sampler
    *
    * For TEX, TXB, TXL, and TXP,
    *
    *   src0 := (x, y, z, w or bias or lod or projection)
    *   src1 := sampler
    *
    * For TXQ,
    *
    *   src0 := (lod, ...)
    *   src1 := sampler
    *
    * For TXQ_LZ,
    *
    *   src0 := sampler
    *
    * And for TXF,
    *
    *   src0 := (x, y, z, w or lod)
    *   src1 := sampler
    *
    * State trackers should not generate opcode+texture combinations with
    * which the two definitions conflict (e.g., TXB with SHADOW2DARRAY).
    */
   switch (inst->opcode) {
   case TOY_OPCODE_TGSI_TEX:
      if (ref_pos >= 0) {
         assert(ref_pos < 4);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE;
      }
      break;
   case TOY_OPCODE_TGSI_TXD:
      if (ref_pos >= 0)
         tc_fail(tc, "TXD with shadow sampler not supported");

      msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS;
      tsrc_transpose(inst->src[1], ddx);
      tsrc_transpose(inst->src[2], ddy);
      num_derivs = num_coords;
      sampler_src = 3;
      break;
   case TOY_OPCODE_TGSI_TXP:
      if (ref_pos >= 0) {
         assert(ref_pos < 3);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE;
      }

      /* project the coordinates */
      {
         struct toy_dst tmp[4];

         tc_alloc_tmp4(tc, tmp);

         tc_INV(tc, tmp[3], coords[3]);
         for (i = 0; i < num_coords && i < 3; i++) {
            tc_MUL(tc, tmp[i], coords[i], tsrc_from(tmp[3]));
            coords[i] = tsrc_from(tmp[i]);
         }

         if (ref_pos >= i) {
            tc_MUL(tc, tmp[ref_pos], ref_or_si, tsrc_from(tmp[3]));
            ref_or_si = tsrc_from(tmp[ref_pos]);
         }
      }
      break;
   case TOY_OPCODE_TGSI_TXB:
      if (ref_pos >= 0) {
         assert(ref_pos < 3);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_BIAS_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_BIAS;
      }

      bias_or_lod = coords[3];
      break;
   case TOY_OPCODE_TGSI_TXL:
      if (ref_pos >= 0) {
         assert(ref_pos < 3);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD;
      }

      bias_or_lod = coords[3];
      break;
   case TOY_OPCODE_TGSI_TXF:
      msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;

      switch (inst->tex.target) {
      case TGSI_TEXTURE_2D_MSAA:
      case TGSI_TEXTURE_2D_ARRAY_MSAA:
         assert(ref_pos >= 0 && ref_pos < 4);
         /* lod is always 0 */
         bias_or_lod = tsrc_imm_d(0);
         ref_or_si = coords[ref_pos];
         break;
      default:
         bias_or_lod = coords[3];
         break;
      }

      /* offset the coordinates */
      if (!tsrc_is_null(inst->tex.offsets[0])) {
         struct toy_dst tmp[4];
         struct toy_src offsets[4];

         tc_alloc_tmp4(tc, tmp);
         tsrc_transpose(inst->tex.offsets[0], offsets);

         for (i = 0; i < num_coords; i++) {
            tc_ADD(tc, tmp[i], coords[i], offsets[i]);
            coords[i] = tsrc_from(tmp[i]);
         }
      }

      sampler_src = 1;
      break;
   case TOY_OPCODE_TGSI_TXQ:
      msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO;
      num_coords = 0;
      bias_or_lod = coords[0];
      break;
   case TOY_OPCODE_TGSI_TXQ_LZ:
      msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO;
      num_coords = 0;
      sampler_src = 0;
      break;
   case TOY_OPCODE_TGSI_TEX2:
      if (ref_pos >= 0) {
         assert(ref_pos < 5);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_COMPARE;

         if (ref_pos >= 4) {
            struct toy_src src1[4];
            tsrc_transpose(inst->src[1], src1);
            ref_or_si = src1[ref_pos - 4];
         }
         else {
            ref_or_si = coords[ref_pos];
         }
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE;
      }

      sampler_src = 2;
      break;
   case TOY_OPCODE_TGSI_TXB2:
      if (ref_pos >= 0) {
         assert(ref_pos < 4);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_BIAS_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_BIAS;
      }

      {
         struct toy_src src1[4];
         tsrc_transpose(inst->src[1], src1);
         bias_or_lod = src1[0];
      }

      sampler_src = 2;
      break;
   case TOY_OPCODE_TGSI_TXL2:
      if (ref_pos >= 0) {
         assert(ref_pos < 4);

         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD_COMPARE;
         ref_or_si = coords[ref_pos];
      }
      else {
         msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD;
      }

      {
         struct toy_src src1[4];
         tsrc_transpose(inst->src[1], src1);
         bias_or_lod = src1[0];
      }

      sampler_src = 2;
      break;
   default:
      assert(!"unhandled sampling opcode");
      return tsrc_null();
      break;
   }

   assert(inst->src[sampler_src].file == TOY_FILE_IMM);
   sampler_index = inst->src[sampler_src].val32;
   binding_table_index = ILO_WM_TEXTURE_SURFACE(sampler_index);

   /*
    * From the Sandy Bridge PRM, volume 4 part 1, page 18:
    *
    *     "Note that the (cube map) coordinates delivered to the sampling
    *      engine must already have been divided by the component with the
    *      largest absolute value."
    */
   switch (inst->tex.target) {
   case TGSI_TEXTURE_CUBE:
   case TGSI_TEXTURE_SHADOWCUBE:
   case TGSI_TEXTURE_CUBE_ARRAY:
   case TGSI_TEXTURE_SHADOWCUBE_ARRAY:
      /* TXQ does not need coordinates */
      if (num_coords >= 3) {
         struct toy_dst tmp[4];

         tc_alloc_tmp4(tc, tmp);

         tc_SEL(tc, tmp[3], tsrc_absolute(coords[0]),
               tsrc_absolute(coords[1]), BRW_CONDITIONAL_GE);
         tc_SEL(tc, tmp[3], tsrc_from(tmp[3]),
               tsrc_absolute(coords[2]), BRW_CONDITIONAL_GE);
         tc_INV(tc, tmp[3], tsrc_from(tmp[3]));

         for (i = 0; i < 3; i++) {
            tc_MUL(tc, tmp[i], coords[i], tsrc_from(tmp[3]));
            coords[i] = tsrc_from(tmp[i]);
         }
      }
      break;
   }

   /*
    * Saturate (s, t, r).  saturate_coords is set for sampler and coordinate
    * that uses linear filtering and PIPE_TEX_WRAP_CLAMP respectively.  It is
    * so that sampling outside the border gets the correct colors.
    */
   for (i = 0; i < MIN2(num_coords, 3); i++) {
      bool is_rect;

      if (!(saturate_coords[i] & (1 << sampler_index)))
         continue;

      switch (inst->tex.target) {
      case TGSI_TEXTURE_RECT:
      case TGSI_TEXTURE_SHADOWRECT:
         is_rect = true;
         break;
      default:
         is_rect = false;
         break;
      }

      if (is_rect) {
         struct toy_src min, max;
         struct toy_dst tmp;

         tc_fail(tc, "GL_CLAMP with rectangle texture unsupported");
         tmp = tc_alloc_tmp(tc);

         /* saturate to [0, width] or [0, height] */
         /* TODO TXQ? */
         min = tsrc_imm_f(0.0f);
         max = tsrc_imm_f(2048.0f);

         tc_SEL(tc, tmp, coords[i], min, BRW_CONDITIONAL_G);
         tc_SEL(tc, tmp, tsrc_from(tmp), max, BRW_CONDITIONAL_L);

         coords[i] = tsrc_from(tmp);
      }
      else {
         struct toy_dst tmp;
         struct toy_inst *inst2;

         tmp = tc_alloc_tmp(tc);

         /* saturate to [0.0f, 1.0f] */
         inst2 = tc_MOV(tc, tmp, coords[i]);
         inst2->saturate = true;

         coords[i] = tsrc_from(tmp);
      }
   }

   /* set up sampler parameters */
   if (tc->gen >= ILO_GEN(7)) {
      msg_len = fs_add_sampler_params_gen7(tc, msg_type, base_mrf, param_size,
            coords, num_coords, bias_or_lod, ref_or_si, ddx, ddy, num_derivs);
   }
   else {
      msg_len = fs_add_sampler_params_gen6(tc, msg_type, base_mrf, param_size,
            coords, num_coords, bias_or_lod, ref_or_si, ddx, ddy, num_derivs);
   }

   /*
    * From the Sandy Bridge PRM, volume 4 part 1, page 136:
    *
    *     "The maximum message length allowed to the sampler is 11. This would
    *      disallow sample_d, sample_b_c, and sample_l_c with a SIMD Mode of
    *      SIMD16."
    */
   if (msg_len > 11)
      tc_fail(tc, "maximum length for messages to the sampler is 11");

   if (ret_sampler_index)
      *ret_sampler_index = sampler_index;

   return tsrc_imm_mdesc_sampler(tc, msg_len, 4 * param_size,
         false, simd_mode, msg_type, sampler_index, binding_table_index);
}
示例#11
0
static void
fetch_attr(struct fs_compile_context *fcc, struct toy_dst dst, int slot)
{
   struct toy_compiler *tc = &fcc->tc;
   struct toy_dst real_dst[4];
   bool is_const = false;
   int grf, mode, ch;

   tdst_transpose(dst, real_dst);

   grf = fcc->first_attr_grf + slot * 2;

   switch (fcc->tgsi.inputs[slot].interp) {
   case TGSI_INTERPOLATE_CONSTANT:
      is_const = true;
      break;
   case TGSI_INTERPOLATE_LINEAR:
      if (fcc->tgsi.inputs[slot].centroid)
         mode = BRW_WM_NONPERSPECTIVE_CENTROID_BARYCENTRIC;
      else
         mode = BRW_WM_NONPERSPECTIVE_PIXEL_BARYCENTRIC;
      break;
   case TGSI_INTERPOLATE_COLOR:
      if (fcc->variant->u.fs.flatshade) {
         is_const = true;
         break;
      }
      /* fall through */
   case TGSI_INTERPOLATE_PERSPECTIVE:
      if (fcc->tgsi.inputs[slot].centroid)
         mode = BRW_WM_PERSPECTIVE_CENTROID_BARYCENTRIC;
      else
         mode = BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC;
      break;
   default:
      assert(!"unexpected FS interpolation");
      mode = BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC;
      break;
   }

   if (is_const) {
      struct toy_src a0[4];

      a0[0] = tsrc(TOY_FILE_GRF, grf + 0, 3 * 4);
      a0[1] = tsrc(TOY_FILE_GRF, grf + 0, 7 * 4);
      a0[2] = tsrc(TOY_FILE_GRF, grf + 1, 3 * 4);
      a0[3] = tsrc(TOY_FILE_GRF, grf + 1, 7 * 4);

      for (ch = 0; ch < 4; ch++)
         tc_MOV(tc, real_dst[ch], tsrc_rect(a0[ch], TOY_RECT_010));
   }
   else {
      struct toy_src attr[4], uv;

      attr[0] = tsrc(TOY_FILE_GRF, grf + 0, 0);
      attr[1] = tsrc(TOY_FILE_GRF, grf + 0, 4 * 4);
      attr[2] = tsrc(TOY_FILE_GRF, grf + 1, 0);
      attr[3] = tsrc(TOY_FILE_GRF, grf + 1, 4 * 4);

      uv = tsrc(TOY_FILE_GRF, fcc->payloads[0].barycentric_interps[mode], 0);

      for (ch = 0; ch < 4; ch++) {
         tc_add2(tc, BRW_OPCODE_PLN, real_dst[ch],
               tsrc_rect(attr[ch], TOY_RECT_010), uv);
      }
   }

   if (fcc->tgsi.inputs[slot].semantic_name == TGSI_SEMANTIC_FOG) {
      tc_MOV(tc, real_dst[1], tsrc_imm_f(0.0f));
      tc_MOV(tc, real_dst[2], tsrc_imm_f(0.0f));
      tc_MOV(tc, real_dst[3], tsrc_imm_f(1.0f));
   }
}
示例#12
0
/**
 * Emit instructions to write the color buffers (and the depth buffer).
 */
static void
fs_write_fb(struct fs_compile_context *fcc)
{
   struct toy_compiler *tc = &fcc->tc;
   int base_mrf = fcc->first_free_mrf;
   const struct toy_dst header = tdst_ud(tdst(TOY_FILE_MRF, base_mrf, 0));
   bool header_present = false;
   struct toy_src desc;
   unsigned msg_type, ctrl;
   int color_slots[ILO_MAX_DRAW_BUFFERS], num_cbufs;
   int pos_slot = -1, cbuf, i;

   for (i = 0; i < Elements(color_slots); i++)
      color_slots[i] = -1;

   for (i = 0; i < fcc->tgsi.num_outputs; i++) {
      if (fcc->tgsi.outputs[i].semantic_name == TGSI_SEMANTIC_COLOR) {
         assert(fcc->tgsi.outputs[i].semantic_index < Elements(color_slots));
         color_slots[fcc->tgsi.outputs[i].semantic_index] = i;
      }
      else if (fcc->tgsi.outputs[i].semantic_name == TGSI_SEMANTIC_POSITION) {
         pos_slot = i;
      }
   }

   num_cbufs = fcc->variant->u.fs.num_cbufs;
   /* still need to send EOT (and probably depth) */
   if (!num_cbufs)
      num_cbufs = 1;

   /* we need the header to specify the pixel mask or render target */
   if (fcc->tgsi.uses_kill || num_cbufs > 1) {
      const struct toy_src r0 = tsrc_ud(tsrc(TOY_FILE_GRF, 0, 0));
      struct toy_inst *inst;

      inst = tc_MOV(tc, header, r0);
      inst->mask_ctrl = BRW_MASK_DISABLE;
      base_mrf += fcc->num_grf_per_vrf;

      /* this is a two-register header */
      if (fcc->dispatch_mode == GEN6_WM_8_DISPATCH_ENABLE) {
         inst = tc_MOV(tc, tdst_offset(header, 1, 0), tsrc_offset(r0, 1, 0));
         inst->mask_ctrl = BRW_MASK_DISABLE;
         base_mrf += fcc->num_grf_per_vrf;
      }

      header_present = true;
   }

   for (cbuf = 0; cbuf < num_cbufs; cbuf++) {
      const int slot =
         color_slots[(fcc->tgsi.props.fs_color0_writes_all_cbufs) ? 0 : cbuf];
      int mrf = base_mrf, vrf;
      struct toy_src src[4];

      if (slot >= 0) {
         const unsigned undefined_mask =
            fcc->tgsi.outputs[slot].undefined_mask;
         const int index = fcc->tgsi.outputs[slot].index;

         vrf = toy_tgsi_get_vrf(&fcc->tgsi, TGSI_FILE_OUTPUT, 0, index);
         if (vrf >= 0) {
            const struct toy_src tmp = tsrc(TOY_FILE_VRF, vrf, 0);
            tsrc_transpose(tmp, src);
         }
         else {
            /* use (0, 0, 0, 0) */
            tsrc_transpose(tsrc_imm_f(0.0f), src);
         }

         for (i = 0; i < 4; i++) {
            const struct toy_dst dst = tdst(TOY_FILE_MRF, mrf, 0);

            if (undefined_mask & (1 << i))
               src[i] = tsrc_imm_f(0.0f);

            tc_MOV(tc, dst, src[i]);

            mrf += fcc->num_grf_per_vrf;
         }
      }
      else {
         /* use (0, 0, 0, 0) */
         for (i = 0; i < 4; i++) {
            const struct toy_dst dst = tdst(TOY_FILE_MRF, mrf, 0);

            tc_MOV(tc, dst, tsrc_imm_f(0.0f));
            mrf += fcc->num_grf_per_vrf;
         }
      }

      /* select BLEND_STATE[rt] */
      if (cbuf > 0) {
         struct toy_inst *inst;

         inst = tc_MOV(tc, tdst_offset(header, 0, 2), tsrc_imm_ud(cbuf));
         inst->mask_ctrl = BRW_MASK_DISABLE;
         inst->exec_size = BRW_EXECUTE_1;
         inst->src[0].rect = TOY_RECT_010;
      }

      if (cbuf == 0 && pos_slot >= 0) {
         const int index = fcc->tgsi.outputs[pos_slot].index;
         const struct toy_dst dst = tdst(TOY_FILE_MRF, mrf, 0);
         struct toy_src src[4];
         int vrf;

         vrf = toy_tgsi_get_vrf(&fcc->tgsi, TGSI_FILE_OUTPUT, 0, index);
         if (vrf >= 0) {
            const struct toy_src tmp = tsrc(TOY_FILE_VRF, vrf, 0);
            tsrc_transpose(tmp, src);
         }
         else {
            /* use (0, 0, 0, 0) */
            tsrc_transpose(tsrc_imm_f(0.0f), src);
         }

         /* only Z */
         tc_MOV(tc, dst, src[2]);

         mrf += fcc->num_grf_per_vrf;
      }

      msg_type = (fcc->dispatch_mode == GEN6_WM_16_DISPATCH_ENABLE) ?
         BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE :
         BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD8_SINGLE_SOURCE_SUBSPAN01;

      ctrl = (cbuf == num_cbufs - 1) << 12 |
             msg_type << 8;

      desc = tsrc_imm_mdesc_data_port(tc, cbuf == num_cbufs - 1,
            mrf - fcc->first_free_mrf, 0,
            header_present, false,
            GEN6_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE,
            ctrl, ILO_WM_DRAW_SURFACE(cbuf));

      tc_add2(tc, TOY_OPCODE_FB_WRITE, tdst_null(),
            tsrc(TOY_FILE_MRF, fcc->first_free_mrf, 0), desc);
   }
}