src/mesa/drivers/dri/i965/gen7_te_state.c

   1 /*
   2  * Copyright © 2014 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "brw_context.h"
  25 #include "brw_state.h"
  26 #include "brw_defines.h"
  27 #include "intel_batchbuffer.h"
  28
  29 static void
  30 upload_te_state(struct brw_context *brw)
  31 {
  32    /* BRW_NEW_TESS_PROGRAMS */
  33    bool active = brw->tess_eval_program;
  34
  35    const struct brw_tes_prog_data *tes_prog_data = brw->tes.prog_data;
  36
  37    if (active) {
  38       BEGIN_BATCH(4);
  39       OUT_BATCH(_3DSTATE_TE << 16 | (4 - 2));
  40       OUT_BATCH((tes_prog_data->partitioning << GEN7_TE_PARTITIONING_SHIFT) |
  41                 (tes_prog_data->output_topology << GEN7_TE_OUTPUT_TOPOLOGY_SHIFT) |
  42                 (tes_prog_data->domain << GEN7_TE_DOMAIN_SHIFT) |
  43                 GEN7_TE_ENABLE);
  44       OUT_BATCH_F(63.0);
  45       OUT_BATCH_F(64.0);
  46       ADVANCE_BATCH();
  47    } else {
  48       BEGIN_BATCH(4);
  49       OUT_BATCH(_3DSTATE_TE << 16 | (4 - 2));
  50       OUT_BATCH(0);
  51       OUT_BATCH_F(0);
  52       OUT_BATCH_F(0);
  53       ADVANCE_BATCH();
  54    }
  55 }
  56
  57 const struct brw_tracked_state gen7_te_state = {
  58    .dirty = {
  59       .mesa  = 0,
  60       .brw   = BRW_NEW_CONTEXT |
  61                BRW_NEW_TES_PROG_DATA |
  62                BRW_NEW_TESS_PROGRAMS,
  63    },
  64    .emit = upload_te_state,
  65 };