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 struct radeon_draw *radeon_draw(struct radeon *radeon)
  35 {
  36         struct radeon_draw *draw;
  37
  38         draw = calloc(1, sizeof(*draw));
  39         if (draw == NULL)
  40                 return NULL;
  41         draw->nstate = radeon->nstate;
  42         draw->radeon = radeon;
  43         draw->refcount = 1;
  44         draw->state = calloc(1, sizeof(void*) * draw->nstate);
  45         if (draw->state == NULL) {
  46                 free(draw);
  47                 return NULL;
  48         }
  49         return draw;
  50 }
  51
  52 struct radeon_draw *radeon_draw_incref(struct radeon_draw *draw)
  53 {
  54         draw->refcount++;
  55         return draw;
  56 }
  57
  58 struct radeon_draw *radeon_draw_decref(struct radeon_draw *draw)
  59 {
  60         unsigned i;
  61
  62         if (draw == NULL)
  63                 return NULL;
  64         if (--draw->refcount > 0)
  65                 return NULL;
  66         for (i = 0; i < draw->nstate; i++) {
  67                 draw->state[i] = radeon_state_decref(draw->state[i]);
  68         }
  69         free(draw->state);
  70         memset(draw, 0, sizeof(*draw));
  71         free(draw);
  72         return NULL;
  73 }
  74
  75 int radeon_draw_set_new(struct radeon_draw *draw, struct radeon_state *state)
  76 {
  77         if (state == NULL)
  78                 return 0;
  79         if (state->type >= draw->radeon->ntype)
  80                 return -EINVAL;
  81         draw->state[state->id] = radeon_state_decref(draw->state[state->id]);
  82         draw->state[state->id] = state;
  83         return 0;
  84 }
  85
  86 int radeon_draw_set(struct radeon_draw *draw, struct radeon_state *state)
  87 {
  88         if (state == NULL)
  89                 return 0;
  90         radeon_state_incref(state);
  91         return radeon_draw_set_new(draw, state);
  92 }
  93
  94 int radeon_draw_check(struct radeon_draw *draw)
  95 {
  96         unsigned i;
  97         int r;
  98
  99         r = radeon_draw_pm4(draw);
 100         if (r)
 101                 return r;
 102         for (i = 0, draw->cpm4 = 0; i < draw->nstate; i++) {
 103                 if (draw->state[i]) {
 104                         draw->cpm4 += draw->state[i]->cpm4;
 105                 }
 106         }
 107         return 0;
 108 }
 109
 110 struct radeon_draw *radeon_draw_duplicate(struct radeon_draw *draw)
 111 {
 112         struct radeon_draw *ndraw;
 113         unsigned i;
 114
 115         if (draw == NULL)
 116                 return NULL;
 117         ndraw = radeon_draw(draw->radeon);
 118         if (ndraw == NULL) {
 119                 return NULL;
 120         }
 121         for (i = 0; i < draw->nstate; i++) {
 122                 if (radeon_draw_set(ndraw, draw->state[i])) {
 123                         radeon_draw_decref(ndraw);
 124                         return NULL;
 125                 }
 126         }
 127         return ndraw;
 128 }
 129
 130 int radeon_draw_pm4(struct radeon_draw *draw)
 131 {
 132         unsigned i;
 133         int r;
 134
 135         for (i = 0; i < draw->nstate; i++) {
 136                 r = radeon_state_pm4(draw->state[i]);
 137                 if (r)
 138                         return r;
 139         }
 140         return 0;
 141 }