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_device {
  44    struct gbm_device base;
  45
  46    void *driver;
  47    char *driver_name; /* Name of the DRI module, without the _dri suffix */
  48
  49    __DRIscreen *screen;
  50    __DRIcontext *context;
  51    mtx_t mutex;
  52
  53    const __DRIcoreExtension   *core;
  54    const __DRIdri2Extension   *dri2;
  55    const __DRI2fenceExtension *fence;
  56    const __DRIimageExtension  *image;
  57    const __DRIswrastExtension *swrast;
  58    const __DRI2flushExtension *flush;
  59    const __DRI2interopExtension *interop;
  60
  61    const __DRIconfig   **driver_configs;
  62    const __DRIextension **loader_extensions;
  63    const __DRIextension **driver_extensions;
  64
  65    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  66    void *lookup_user_data;
  67
  68    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  69                                int *width, int *height,
  70                                unsigned int *attachments, int count,
  71                                int *out_count, void *data);
  72    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  73    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  74                              int *width, int *height,
  75                              unsigned int *attachments, int count,
  76                              int *out_count, void *data);
  77    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  78                             unsigned int format,
  79                             uint32_t *stamp,
  80                             void *loaderPrivate,
  81                             uint32_t buffer_mask,
  82                             struct __DRIimageList *buffers);
  83    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  84                              int            op,
  85                              int            x,
  86                              int            y,
  87                              int            width,
  88                              int            height,
  89                              int            stride,
  90                              char          *data,
  91                              void          *loaderPrivate);
  92    void (*swrast_get_image)(__DRIdrawable *driDrawable,
  93                             int            x,
  94                             int            y,
  95                             int            width,
  96                             int            height,
  97                             char          *data,
  98                             void          *loaderPrivate);
  99
 100    struct wl_drm *wl_drm;
 101 };
 102
 103 struct gbm_dri_bo {
 104    struct gbm_bo base;
 105
 106    __DRIimage *image;
 107
 108    /* Used for cursors and the swrast front BO */
 109    uint32_t handle, size;
 110    void *map;
 111 };
 112
 113 struct gbm_dri_surface {
 114    struct gbm_surface base;
 115
 116    void *dri_private;
 117 };
 118
 119 static inline struct gbm_dri_device *
 120 gbm_dri_device(struct gbm_device *gbm)
 121 {
 122    return (struct gbm_dri_device *) gbm;
 123 }
 124
 125 static inline struct gbm_dri_bo *
 126 gbm_dri_bo(struct gbm_bo *bo)
 127 {
 128    return (struct gbm_dri_bo *) bo;
 129 }
 130
 131 static inline struct gbm_dri_surface *
 132 gbm_dri_surface(struct gbm_surface *surface)
 133 {
 134    return (struct gbm_dri_surface *) surface;
 135 }
 136
 137 static inline void *
 138 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 139 {
 140    struct drm_mode_map_dumb map_arg;
 141    int ret;
 142
 143    if (bo->image != NULL)
 144       return NULL;
 145
 146    if (bo->map != NULL)
 147       return bo->map;
 148
 149    memset(&map_arg, 0, sizeof(map_arg));
 150    map_arg.handle = bo->handle;
 151
 152    ret = drmIoctl(bo->base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 153    if (ret)
 154       return NULL;
 155
 156    bo->map = mmap(0, bo->size, PROT_WRITE,
 157                   MAP_SHARED, bo->base.gbm->fd, map_arg.offset);
 158    if (bo->map == MAP_FAILED) {
 159       bo->map = NULL;
 160       return NULL;
 161    }
 162
 163    return bo->map;
 164 }
 165
 166 static inline void
 167 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 168 {
 169    munmap(bo->map, bo->size);
 170    bo->map = NULL;
 171 }
 172
 173 #endif