src/mesa/drivers/dri/i965/gen7_hs_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 gen7_upload_tcs_push_constants(struct brw_context *brw)
  31 {
  32    struct brw_stage_state *stage_state = &brw->tcs.base;
  33    /* BRW_NEW_TESS_PROGRAMS */
  34    const struct brw_tess_ctrl_program *tcp =
  35       (struct brw_tess_ctrl_program *) brw->tess_ctrl_program;
  36    bool active = brw->tess_eval_program;
  37
  38    if (active) {
  39       /* BRW_NEW_TCS_PROG_DATA */
  40       const struct brw_stage_prog_data *prog_data = &brw->tcs.prog_data->base.base;
  41       gen6_upload_push_constants(brw, &tcp->program.Base, prog_data,
  42                                       stage_state, AUB_TRACE_VS_CONSTANTS);
  43    }
  44
  45    gen7_upload_constant_state(brw, stage_state, active, _3DSTATE_CONSTANT_HS);
  46 }
  47
  48 const struct brw_tracked_state gen7_tcs_push_constants = {
  49    .dirty = {
  50       .mesa  = _NEW_PROGRAM_CONSTANTS,
  51       .brw   = BRW_NEW_BATCH |
  52                BRW_NEW_DEFAULT_TESS_LEVELS |
  53                BRW_NEW_PUSH_CONSTANT_ALLOCATION |
  54                BRW_NEW_TESS_PROGRAMS |
  55                BRW_NEW_TCS_PROG_DATA,
  56    },
  57    .emit = gen7_upload_tcs_push_constants,
  58 };
  59
  60 static void
  61 gen7_upload_hs_state(struct brw_context *brw)
  62 {
  63    /* Disable the HS Unit */
  64    BEGIN_BATCH(7);
  65    OUT_BATCH(_3DSTATE_CONSTANT_HS << 16 | (7 - 2));
  66    OUT_BATCH(0);
  67    OUT_BATCH(0);
  68    OUT_BATCH(0);
  69    OUT_BATCH(0);
  70    OUT_BATCH(0);
  71    OUT_BATCH(0);
  72    ADVANCE_BATCH();
  73
  74    BEGIN_BATCH(7);
  75    OUT_BATCH(_3DSTATE_HS << 16 | (7 - 2));
  76    OUT_BATCH(0);
  77    OUT_BATCH(0);
  78    OUT_BATCH(0);
  79    OUT_BATCH(0);
  80    OUT_BATCH(0);
  81    OUT_BATCH(0);
  82    ADVANCE_BATCH();
  83
  84    BEGIN_BATCH(2);
  85    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_HS << 16 | (2 - 2));
  86    OUT_BATCH(brw->hw_bt_pool.next_offset);
  87    ADVANCE_BATCH();
  88 }
  89
  90 const struct brw_tracked_state gen7_hs_state = {
  91    .dirty = {
  92       .mesa  = 0,
  93       .brw   = BRW_NEW_CONTEXT,
  94    },
  95    .emit = gen7_upload_hs_state,
  96 };