src/gallium/winsys/r600/drm/radeon_draw.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Jerome Glisse
  25  */
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include "radeon_priv.h"
  30
  31 /*
  32  * draw functions
  33  */
  34 int radeon_draw_init(struct radeon_draw *draw, struct radeon *radeon)
  35 {
  36         memset(draw, 0, sizeof(struct radeon_draw));
  37         draw->nstate = radeon->nstate;
  38         draw->radeon = radeon;
  39         return 0;
  40 }
  41
  42 int radeon_draw_set(struct radeon_draw *draw, struct radeon_state *state)
  43 {
  44         if (state == NULL)
  45                 return 0;
  46         if (state->type >= draw->radeon->ntype)
  47                 return -EINVAL;
  48         draw->state[state->id] = *state;
  49         return 0;
  50 }
  51
  52 int radeon_draw_check(struct radeon_draw *draw)
  53 {
  54         unsigned i;
  55         int r;
  56
  57         for (i = 0, draw->cpm4 = 0; i < draw->nstate; i++) {
  58                 if (draw->state[i].valid) {
  59                         draw->cpm4 += draw->state[i].cpm4;
  60                 }
  61         }
  62         return 0;
  63 }