src/mesa/drivers/dri/common/dri_bufmgr.c

   1 /*
   2  * Copyright © 2007 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 "mtypes.h"
  29 #include "dri_bufmgr.h"
  30
  31 /** @file dri_bufmgr.c
  32  *
  33  * Convenience functions for buffer management methods.
  34  */
  35
  36 dri_bo *
  37 dri_bo_alloc(dri_bufmgr *bufmgr, const char *name, unsigned long size,
  38              unsigned int alignment, unsigned int location_mask)
  39 {
  40    assert((location_mask & ~(DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_MEM_TT |
  41                              DRM_BO_FLAG_MEM_VRAM | DRM_BO_FLAG_MEM_PRIV0 |
  42                              DRM_BO_FLAG_MEM_PRIV1 | DRM_BO_FLAG_MEM_PRIV2 |
  43                              DRM_BO_FLAG_MEM_PRIV3 |
  44                              DRM_BO_FLAG_MEM_PRIV4)) == 0);
  45
  46    return bufmgr->bo_alloc(bufmgr, name, size, alignment, location_mask);
  47 }
  48
  49 dri_bo *
  50 dri_bo_alloc_static(dri_bufmgr *bufmgr, const char *name, unsigned long offset,
  51                     unsigned long size, void *virtual,
  52                     unsigned int location_mask)
  53 {
  54    assert((location_mask & ~(DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_MEM_TT |
  55                              DRM_BO_FLAG_MEM_VRAM | DRM_BO_FLAG_MEM_PRIV0 |
  56                              DRM_BO_FLAG_MEM_PRIV1 | DRM_BO_FLAG_MEM_PRIV2 |
  57                              DRM_BO_FLAG_MEM_PRIV3 |
  58                              DRM_BO_FLAG_MEM_PRIV4)) == 0);
  59
  60    return bufmgr->bo_alloc_static(bufmgr, name, offset, size, virtual,
  61                                   location_mask);
  62 }
  63
  64 void
  65 dri_bo_reference(dri_bo *bo)
  66 {
  67    bo->bufmgr->bo_reference(bo);
  68 }
  69
  70 void
  71 dri_bo_unreference(dri_bo *bo)
  72 {
  73    if (bo == NULL)
  74       return;
  75
  76    bo->bufmgr->bo_unreference(bo);
  77 }
  78
  79 int
  80 dri_bo_map(dri_bo *buf, GLboolean write_enable)
  81 {
  82    return buf->bufmgr->bo_map(buf, write_enable);
  83 }
  84
  85 int
  86 dri_bo_unmap(dri_bo *buf)
  87 {
  88    return buf->bufmgr->bo_unmap(buf);
  89 }
  90
  91 int
  92 dri_bo_validate(dri_bo *buf, unsigned int flags)
  93 {
  94    return buf->bufmgr->bo_validate(buf, flags);
  95 }
  96
  97 dri_fence *
  98 dri_fence_validated(dri_bufmgr *bufmgr, const char *name, GLboolean flushed)
  99 {
 100    return bufmgr->fence_validated(bufmgr, name, flushed);
 101 }
 102
 103 void
 104 dri_fence_wait(dri_fence *fence)
 105 {
 106    fence->bufmgr->fence_wait(fence);
 107 }
 108
 109 void
 110 dri_fence_reference(dri_fence *fence)
 111 {
 112    fence->bufmgr->fence_reference(fence);
 113 }
 114
 115 void
 116 dri_fence_unreference(dri_fence *fence)
 117 {
 118    if (fence == NULL)
 119       return;
 120
 121    fence->bufmgr->fence_unreference(fence);
 122 }
 123
 124 void
 125 dri_bo_subdata(dri_bo *bo, unsigned long offset,
 126                unsigned long size, const void *data)
 127 {
 128    if (size == 0 || data == NULL)
 129       return;
 130
 131    dri_bo_map(bo, GL_TRUE);
 132    memcpy((unsigned char *)bo->virtual + offset, data, size);
 133    dri_bo_unmap(bo);
 134 }
 135
 136 void
 137 dri_bo_get_subdata(dri_bo *bo, unsigned long offset,
 138                    unsigned long size, void *data)
 139 {
 140    if (size == 0 || data == NULL)
 141       return;
 142
 143    dri_bo_map(bo, GL_FALSE);
 144    memcpy(data, (unsigned char *)bo->virtual + offset, size);
 145    dri_bo_unmap(bo);
 146 }
 147
 148 void
 149 dri_bufmgr_destroy(dri_bufmgr *bufmgr)
 150 {
 151    bufmgr->destroy(bufmgr);
 152 }