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    const __DRI2interopExtension *interop;
  62
  63    const __DRIconfig   **driver_configs;
  64    const __DRIextension **loader_extensions;
  65    const __DRIextension **driver_extensions;
  66
  67    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  68    void *lookup_user_data;
  69
  70    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  71                                int *width, int *height,
  72                                unsigned int *attachments, int count,
  73                                int *out_count, void *data);
  74    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  75    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  76                              int *width, int *height,
  77                              unsigned int *attachments, int count,
  78                              int *out_count, void *data);
  79    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  80                             unsigned int format,
  81                             uint32_t *stamp,
  82                             void *loaderPrivate,
  83                             uint32_t buffer_mask,
  84                             struct __DRIimageList *buffers);
  85    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
  86                              int            op,
  87                              int            x,
  88                              int            y,
  89                              int            width,
  90                              int            height,
  91                              int            stride,
  92                              char          *data,
  93                              void          *loaderPrivate);
  94    void (*swrast_get_image)(__DRIdrawable *driDrawable,
  95                             int            x,
  96                             int            y,
  97                             int            width,
  98                             int            height,
  99                             char          *data,
 100                             void          *loaderPrivate);
 101
 102    struct wl_drm *wl_drm;
 103 };
 104
 105 struct gbm_dri_bo {
 106    struct gbm_drm_bo base;
 107
 108    __DRIimage *image;
 109
 110    /* Used for cursors and the swrast front BO */
 111    uint32_t handle, size;
 112    void *map;
 113 };
 114
 115 struct gbm_dri_surface {
 116    struct gbm_surface base;
 117
 118    void *dri_private;
 119 };
 120
 121 static inline struct gbm_dri_device *
 122 gbm_dri_device(struct gbm_device *gbm)
 123 {
 124    return (struct gbm_dri_device *) gbm;
 125 }
 126
 127 static inline struct gbm_dri_bo *
 128 gbm_dri_bo(struct gbm_bo *bo)
 129 {
 130    return (struct gbm_dri_bo *) bo;
 131 }
 132
 133 static inline struct gbm_dri_surface *
 134 gbm_dri_surface(struct gbm_surface *surface)
 135 {
 136    return (struct gbm_dri_surface *) surface;
 137 }
 138
 139 static inline void *
 140 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 141 {
 142    struct drm_mode_map_dumb map_arg;
 143    int ret;
 144
 145    if (bo->image != NULL)
 146       return NULL;
 147
 148    if (bo->map != NULL)
 149       return bo->map;
 150
 151    memset(&map_arg, 0, sizeof(map_arg));
 152    map_arg.handle = bo->handle;
 153
 154    ret = drmIoctl(bo->base.base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 155    if (ret)
 156       return NULL;
 157
 158    bo->map = mmap(0, bo->size, PROT_WRITE,
 159                   MAP_SHARED, bo->base.base.gbm->fd, map_arg.offset);
 160    if (bo->map == MAP_FAILED) {
 161       bo->map = NULL;
 162       return NULL;
 163    }
 164
 165    return bo->map;
 166 }
 167
 168 static inline void
 169 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 170 {
 171    munmap(bo->map, bo->size);
 172    bo->map = NULL;
 173 }
 174
 175 #endif