src/gallium/drivers/vc4/vc4_emit.c

   1 /*
   2  * Copyright © 2014 Broadcom
   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
  24 #include "vc4_context.h"
  25
  26 void
  27 vc4_emit_state(struct pipe_context *pctx)
  28 {
  29         struct vc4_context *vc4 = vc4_context(pctx);
  30
  31         if (vc4->dirty & VC4_DIRTY_SCISSOR) {
  32                 cl_u8(&vc4->bcl, VC4_PACKET_CLIP_WINDOW);
  33                 cl_u16(&vc4->bcl, vc4->scissor.minx);
  34                 cl_u16(&vc4->bcl, vc4->scissor.miny);
  35                 cl_u16(&vc4->bcl, vc4->scissor.maxx - vc4->scissor.minx);
  36                 cl_u16(&vc4->bcl, vc4->scissor.maxy - vc4->scissor.miny);
  37         }
  38
  39         if (vc4->dirty & (VC4_DIRTY_RASTERIZER | VC4_DIRTY_ZSA)) {
  40                 cl_u8(&vc4->bcl, VC4_PACKET_CONFIGURATION_BITS);
  41                 cl_u8(&vc4->bcl,
  42                       vc4->rasterizer->config_bits[0] |
  43                       vc4->zsa->config_bits[0]);
  44                 cl_u8(&vc4->bcl,
  45                       vc4->rasterizer->config_bits[1] |
  46                       vc4->zsa->config_bits[1]);
  47                 cl_u8(&vc4->bcl,
  48                       vc4->rasterizer->config_bits[2] |
  49                       vc4->zsa->config_bits[2]);
  50         }
  51
  52         if (vc4->dirty & VC4_DIRTY_VIEWPORT) {
  53                 cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_XY_SCALING);
  54                 cl_f(&vc4->bcl, vc4->viewport.scale[0] * 16.0f);
  55                 cl_f(&vc4->bcl, vc4->viewport.scale[1] * 16.0f);
  56
  57                 cl_u8(&vc4->bcl, VC4_PACKET_CLIPPER_Z_SCALING);
  58                 cl_f(&vc4->bcl, vc4->viewport.translate[2]);
  59                 cl_f(&vc4->bcl, vc4->viewport.scale[2]);
  60
  61                 cl_u8(&vc4->bcl, VC4_PACKET_VIEWPORT_OFFSET);
  62                 cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[0]);
  63                 cl_u16(&vc4->bcl, 16 * vc4->viewport.translate[1]);
  64         }
  65 }