src/gbm/backends/dri/gbm_driint.h

   1 /*
   2  * Copyright © 2011 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,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  19  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Benjamin Franzke <benjaminfranzke@googlemail.com>
  26  */
  27
  28 #ifndef _GBM_DRI_INTERNAL_H_
  29 #define _GBM_DRI_INTERNAL_H_
  30
  31 #include <sys/mman.h>
  32 #include "gbmint.h"
  33 #include "c11/threads.h"
  34
  35 #include "common_drm.h"
  36
  37 #include <GL/gl.h> /* dri_interface needs GL types */
  38 #include "GL/internal/dri_interface.h"
  39
  40 struct gbm_dri_surface;
  41 struct gbm_dri_bo;
  42
  43 struct gbm_dri_device {
  44    struct gbm_drm_device base;
  45
  46    void *driver;
  47
  48    __DRIscreen *screen;
  49    __DRIcontext *context;
  50    mtx_t mutex;
  51
  52    const __DRIcoreExtension   *core;
  53    const __DRIdri2Extension   *dri2;
  54    const __DRIimageExtension  *image;
  55    const __DRIswrastExtension *swrast;
  56    const __DRI2flushExtension *flush;
  57    const __DRIdri2LoaderExtension *loader;
  58
  59    const __DRIconfig   **driver_configs;
  60    const __DRIextension **extensions;
  61    const __DRIextension **driver_extensions;
  62
  63    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  64    void *lookup_user_data;
  65
  66    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  67                                int *width, int *height,
  68                                unsigned int *attachments, int count,
  69                                int *out_count, void *data);
  70    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  71    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  72                              int *width, int *height,
  73                              unsigned int *attachments, int count,
  74                              int *out_count, void *data);
  75    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  76                             unsigned int format,
  77                             uint32_t *stamp,
  78                             void *loaderPrivate,
  79                             uint32_t buffer_mask,
  80                             struct __DRIimageList *buffers);
  81    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  82                              int            op,
  83                              int            x,
  84                              int            y,
  85                              int            width,
  86                              int            height,
  87                              int            stride,
  88                              char          *data,
  89                              void          *loaderPrivate);
  90    void (*swrast_get_image)(__DRIdrawable *driDrawable,
  91                             int            x,
  92                             int            y,
  93                             int            width,
  94                             int            height,
  95                             char          *data,
  96                             void          *loaderPrivate);
  97
  98    struct wl_drm *wl_drm;
  99 };
 100
 101 struct gbm_dri_bo {
 102    struct gbm_drm_bo base;
 103
 104    __DRIimage *image;
 105
 106    /* Used for cursors and the swrast front BO */
 107    uint32_t handle, size;
 108    void *map;
 109 };
 110
 111 struct gbm_dri_surface {
 112    struct gbm_surface base;
 113
 114    void *dri_private;
 115 };
 116
 117 static inline struct gbm_dri_device *
 118 gbm_dri_device(struct gbm_device *gbm)
 119 {
 120    return (struct gbm_dri_device *) gbm;
 121 }
 122
 123 static inline struct gbm_dri_bo *
 124 gbm_dri_bo(struct gbm_bo *bo)
 125 {
 126    return (struct gbm_dri_bo *) bo;
 127 }
 128
 129 static inline struct gbm_dri_surface *
 130 gbm_dri_surface(struct gbm_surface *surface)
 131 {
 132    return (struct gbm_dri_surface *) surface;
 133 }
 134
 135 static inline void *
 136 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 137 {
 138    struct drm_mode_map_dumb map_arg;
 139    int ret;
 140
 141    if (bo->image != NULL)
 142       return NULL;
 143
 144    if (bo->map != NULL)
 145       return bo->map;
 146
 147    memset(&map_arg, 0, sizeof(map_arg));
 148    map_arg.handle = bo->handle;
 149
 150    ret = drmIoctl(bo->base.base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 151    if (ret)
 152       return NULL;
 153
 154    bo->map = mmap(0, bo->size, PROT_WRITE,
 155                   MAP_SHARED, bo->base.base.gbm->fd, map_arg.offset);
 156    if (bo->map == MAP_FAILED) {
 157       bo->map = NULL;
 158       return NULL;
 159    }
 160
 161    return bo->map;
 162 }
 163
 164 static inline void
 165 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 166 {
 167    munmap(bo->map, bo->size);
 168    bo->map = NULL;
 169 }
 170
 171 #endif