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 "common_drm.h"
  38
  39 #include <GL/gl.h> /* dri_interface needs GL types */
  40 #include "GL/internal/dri_interface.h"
  41
  42 struct gbm_dri_surface;
  43 struct gbm_dri_bo;
  44
  45 struct gbm_dri_device {
  46    struct gbm_drm_device base;
  47
  48    void *driver;
  49
  50    __DRIscreen *screen;
  51    __DRIcontext *context;
  52    mtx_t mutex;
  53
  54    const __DRIcoreExtension   *core;
  55    const __DRIdri2Extension   *dri2;
  56    const __DRI2fenceExtension *fence;
  57    const __DRIimageExtension  *image;
  58    const __DRIswrastExtension *swrast;
  59    const __DRI2flushExtension *flush;
  60    const __DRIdri2LoaderExtension *loader;
  61
  62    const __DRIconfig   **driver_configs;
  63    const __DRIextension **loader_extensions;
  64    const __DRIextension **driver_extensions;
  65
  66    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  67    void *lookup_user_data;
  68
  69    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  70                                int *width, int *height,
  71                                unsigned int *attachments, int count,
  72                                int *out_count, void *data);
  73    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  74    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  75                              int *width, int *height,
  76                              unsigned int *attachments, int count,
  77                              int *out_count, void *data);
  78    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  79                             unsigned int format,
  80                             uint32_t *stamp,
  81                             void *loaderPrivate,
  82                             uint32_t buffer_mask,
  83                             struct __DRIimageList *buffers);
  84    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  85                              int            op,
  86                              int            x,
  87                              int            y,
  88                              int            width,
  89                              int            height,
  90                              int            stride,
  91                              char          *data,
  92                              void          *loaderPrivate);
  93    void (*swrast_get_image)(__DRIdrawable *driDrawable,
  94                             int            x,
  95                             int            y,
  96                             int            width,
  97                             int            height,
  98                             char          *data,
  99                             void          *loaderPrivate);
 100
 101    struct wl_drm *wl_drm;
 102 };
 103
 104 struct gbm_dri_bo {
 105    struct gbm_drm_bo base;
 106
 107    __DRIimage *image;
 108
 109    /* Used for cursors and the swrast front BO */
 110    uint32_t handle, size;
 111    void *map;
 112 };
 113
 114 struct gbm_dri_surface {
 115    struct gbm_surface base;
 116
 117    void *dri_private;
 118 };
 119
 120 static inline struct gbm_dri_device *
 121 gbm_dri_device(struct gbm_device *gbm)
 122 {
 123    return (struct gbm_dri_device *) gbm;
 124 }
 125
 126 static inline struct gbm_dri_bo *
 127 gbm_dri_bo(struct gbm_bo *bo)
 128 {
 129    return (struct gbm_dri_bo *) bo;
 130 }
 131
 132 static inline struct gbm_dri_surface *
 133 gbm_dri_surface(struct gbm_surface *surface)
 134 {
 135    return (struct gbm_dri_surface *) surface;
 136 }
 137
 138 static inline void *
 139 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 140 {
 141    struct drm_mode_map_dumb map_arg;
 142    int ret;
 143
 144    if (bo->image != NULL)
 145       return NULL;
 146
 147    if (bo->map != NULL)
 148       return bo->map;
 149
 150    memset(&map_arg, 0, sizeof(map_arg));
 151    map_arg.handle = bo->handle;
 152
 153    ret = drmIoctl(bo->base.base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 154    if (ret)
 155       return NULL;
 156
 157    bo->map = mmap(0, bo->size, PROT_WRITE,
 158                   MAP_SHARED, bo->base.base.gbm->fd, map_arg.offset);
 159    if (bo->map == MAP_FAILED) {
 160       bo->map = NULL;
 161       return NULL;
 162    }
 163
 164    return bo->map;
 165 }
 166
 167 static inline void
 168 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 169 {
 170    munmap(bo->map, bo->size);
 171    bo->map = NULL;
 172 }
 173
 174 #endif