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 <xf86drm.h>
  32 #include <string.h>
  33 #include <sys/mman.h>
  34 #include "gbmint.h"
  35 #include "c11/threads.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_visual {
  44    uint32_t gbm_format;
  45    int dri_image_format;
  46    uint32_t rgba_masks[4];
  47 };
  48
  49 struct gbm_dri_device {
  50    struct gbm_device base;
  51
  52    void *driver;
  53    char *driver_name; /* Name of the DRI module, without the _dri suffix */
  54
  55    __DRIscreen *screen;
  56    __DRIcontext *context;
  57    mtx_t mutex;
  58
  59    const __DRIcoreExtension   *core;
  60    const __DRIdri2Extension   *dri2;
  61    const __DRI2fenceExtension *fence;
  62    const __DRIimageExtension  *image;
  63    const __DRIswrastExtension *swrast;
  64    const __DRI2flushExtension *flush;
  65
  66    const __DRIconfig   **driver_configs;
  67    const __DRIextension **loader_extensions;
  68    const __DRIextension **driver_extensions;
  69
  70    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  71    void *lookup_user_data;
  72
  73    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  74                                int *width, int *height,
  75                                unsigned int *attachments, int count,
  76                                int *out_count, void *data);
  77    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  78    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  79                              int *width, int *height,
  80                              unsigned int *attachments, int count,
  81                              int *out_count, void *data);
  82    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  83                             unsigned int format,
  84                             uint32_t *stamp,
  85                             void *loaderPrivate,
  86                             uint32_t buffer_mask,
  87                             struct __DRIimageList *buffers);
  88    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  89                              int            op,
  90                              int            x,
  91                              int            y,
  92                              int            width,
  93                              int            height,
  94                              int            stride,
  95                              char          *data,
  96                              void          *loaderPrivate);
  97    void (*swrast_get_image)(__DRIdrawable *driDrawable,
  98                             int            x,
  99                             int            y,
 100                             int            width,
 101                             int            height,
 102                             char          *data,
 103                             void          *loaderPrivate);
 104
 105    struct wl_drm *wl_drm;
 106
 107    const struct gbm_dri_visual *visual_table;
 108    int num_visuals;
 109 };
 110
 111 struct gbm_dri_bo {
 112    struct gbm_bo base;
 113
 114    __DRIimage *image;
 115
 116    /* Used for cursors and the swrast front BO */
 117    uint32_t handle, size;
 118    void *map;
 119 };
 120
 121 struct gbm_dri_surface {
 122    struct gbm_surface base;
 123
 124    void *dri_private;
 125 };
 126
 127 static inline struct gbm_dri_device *
 128 gbm_dri_device(struct gbm_device *gbm)
 129 {
 130    return (struct gbm_dri_device *) gbm;
 131 }
 132
 133 static inline struct gbm_dri_bo *
 134 gbm_dri_bo(struct gbm_bo *bo)
 135 {
 136    return (struct gbm_dri_bo *) bo;
 137 }
 138
 139 static inline struct gbm_dri_surface *
 140 gbm_dri_surface(struct gbm_surface *surface)
 141 {
 142    return (struct gbm_dri_surface *) surface;
 143 }
 144
 145 static inline void *
 146 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 147 {
 148    struct drm_mode_map_dumb map_arg;
 149    int ret;
 150
 151    if (bo->image != NULL)
 152       return NULL;
 153
 154    if (bo->map != NULL)
 155       return bo->map;
 156
 157    memset(&map_arg, 0, sizeof(map_arg));
 158    map_arg.handle = bo->handle;
 159
 160    ret = drmIoctl(bo->base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 161    if (ret)
 162       return NULL;
 163
 164    bo->map = mmap(0, bo->size, PROT_WRITE,
 165                   MAP_SHARED, bo->base.gbm->fd, map_arg.offset);
 166    if (bo->map == MAP_FAILED) {
 167       bo->map = NULL;
 168       return NULL;
 169    }
 170
 171    return bo->map;
 172 }
 173
 174 static inline void
 175 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 176 {
 177    munmap(bo->map, bo->size);
 178    bo->map = NULL;
 179 }
 180
 181 #endif