src/mesa/drivers/dri/i965/gen6_gs_state.c

   1 /*
   2  * Copyright © 2009 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 DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *
  26  */
  27
  28 #include "brw_context.h"
  29 #include "brw_state.h"
  30 #include "brw_defines.h"
  31 #include "intel_batchbuffer.h"
  32 #include "main/shaderapi.h"
  33
  34 void
  35 upload_gs_state_for_tf(struct brw_context *brw)
  36 {
  37    const struct gen_device_info *devinfo = &brw->screen->devinfo;
  38
  39    BEGIN_BATCH(7);
  40    OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2));
  41    OUT_BATCH(brw->ff_gs.prog_offset);
  42    OUT_BATCH(GEN6_GS_SPF_MODE | GEN6_GS_VECTOR_MASK_ENABLE);
  43    OUT_BATCH(0); /* no scratch space */
  44    OUT_BATCH((2 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
  45              (brw->ff_gs.prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT));
  46    OUT_BATCH(((devinfo->max_gs_threads - 1) << GEN6_GS_MAX_THREADS_SHIFT) |
  47              GEN6_GS_STATISTICS_ENABLE |
  48              GEN6_GS_SO_STATISTICS_ENABLE |
  49              GEN6_GS_RENDERING_ENABLE);
  50    OUT_BATCH(GEN6_GS_SVBI_PAYLOAD_ENABLE |
  51              GEN6_GS_SVBI_POSTINCREMENT_ENABLE |
  52              (brw->ff_gs.prog_data->svbi_postincrement_value <<
  53               GEN6_GS_SVBI_POSTINCREMENT_VALUE_SHIFT) |
  54              GEN6_GS_ENABLE);
  55    ADVANCE_BATCH();
  56 }