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