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    struct {
  47       uint32_t red;
  48       uint32_t green;
  49       uint32_t blue;
  50       uint32_t alpha;
  51    } rgba_masks;
  52 };
  53
  54 struct gbm_dri_device {
  55    struct gbm_device base;
  56
  57    void *driver;
  58    char *driver_name; /* Name of the DRI module, without the _dri suffix */
  59
  60    __DRIscreen *screen;
  61    __DRIcontext *context;
  62    mtx_t mutex;
  63
  64    const __DRIcoreExtension   *core;
  65    const __DRIdri2Extension   *dri2;
  66    const __DRI2fenceExtension *fence;
  67    const __DRIimageExtension  *image;
  68    const __DRIswrastExtension *swrast;
  69    const __DRI2flushExtension *flush;
  70
  71    const __DRIconfig   **driver_configs;
  72    const __DRIextension **loader_extensions;
  73    const __DRIextension **driver_extensions;
  74
  75    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  76    void *lookup_user_data;
  77
  78    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  79                                int *width, int *height,
  80                                unsigned int *attachments, int count,
  81                                int *out_count, void *data);
  82    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  83    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  84                              int *width, int *height,
  85                              unsigned int *attachments, int count,
  86                              int *out_count, void *data);
  87    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  88                             unsigned int format,
  89                             uint32_t *stamp,
  90                             void *loaderPrivate,
  91                             uint32_t buffer_mask,
  92                             struct __DRIimageList *buffers);
  93    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  94                              int            op,
  95                              int            x,
  96                              int            y,
  97                              int            width,
  98                              int            height,
  99                              int            stride,
 100                              char          *data,
 101                              void          *loaderPrivate);
 102    void (*swrast_get_image)(__DRIdrawable *driDrawable,
 103                             int            x,
 104                             int            y,
 105                             int            width,
 106                             int            height,
 107                             char          *data,
 108                             void          *loaderPrivate);
 109
 110    struct wl_drm *wl_drm;
 111
 112    const struct gbm_dri_visual *visual_table;
 113    int num_visuals;
 114 };
 115
 116 struct gbm_dri_bo {
 117    struct gbm_bo base;
 118
 119    __DRIimage *image;
 120
 121    /* Used for cursors and the swrast front BO */
 122    uint32_t handle, size;
 123    void *map;
 124 };
 125
 126 struct gbm_dri_surface {
 127    struct gbm_surface base;
 128
 129    void *dri_private;
 130 };
 131
 132 static inline struct gbm_dri_device *
 133 gbm_dri_device(struct gbm_device *gbm)
 134 {
 135    return (struct gbm_dri_device *) gbm;
 136 }
 137
 138 static inline struct gbm_dri_bo *
 139 gbm_dri_bo(struct gbm_bo *bo)
 140 {
 141    return (struct gbm_dri_bo *) bo;
 142 }
 143
 144 static inline struct gbm_dri_surface *
 145 gbm_dri_surface(struct gbm_surface *surface)
 146 {
 147    return (struct gbm_dri_surface *) surface;
 148 }
 149
 150 static inline void *
 151 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 152 {
 153    struct drm_mode_map_dumb map_arg;
 154    int ret;
 155
 156    if (bo->image != NULL)
 157       return NULL;
 158
 159    if (bo->map != NULL)
 160       return bo->map;
 161
 162    memset(&map_arg, 0, sizeof(map_arg));
 163    map_arg.handle = bo->handle;
 164
 165    ret = drmIoctl(bo->base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 166    if (ret)
 167       return NULL;
 168
 169    bo->map = mmap(0, bo->size, PROT_WRITE,
 170                   MAP_SHARED, bo->base.gbm->fd, map_arg.offset);
 171    if (bo->map == MAP_FAILED) {
 172       bo->map = NULL;
 173       return NULL;
 174    }
 175
 176    return bo->map;
 177 }
 178
 179 static inline void
 180 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 181 {
 182    munmap(bo->map, bo->size);
 183    bo->map = NULL;
 184 }
 185
 186 #endif