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       int red;
  48       int green;
  49       int blue;
  50       int alpha;
  51    } rgba_shifts;
  52    struct {
  53       unsigned int red;
  54       unsigned int green;
  55       unsigned int blue;
  56       unsigned int alpha;
  57    } rgba_sizes;
  58    bool is_float;
  59 };
  60
  61 struct gbm_dri_device {
  62    struct gbm_device base;
  63
  64    void *driver;
  65    char *driver_name; /* Name of the DRI module, without the _dri suffix */
  66
  67    __DRIscreen *screen;
  68    __DRIcontext *context;
  69    mtx_t mutex;
  70
  71    const __DRIcoreExtension   *core;
  72    const __DRIdri2Extension   *dri2;
  73    const __DRI2fenceExtension *fence;
  74    const __DRIimageExtension  *image;
  75    const __DRIswrastExtension *swrast;
  76    const __DRI2flushExtension *flush;
  77
  78    const __DRIconfig   **driver_configs;
  79    const __DRIextension **loader_extensions;
  80    const __DRIextension **driver_extensions;
  81
  82    __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
  83    void *lookup_user_data;
  84
  85    __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
  86                                int *width, int *height,
  87                                unsigned int *attachments, int count,
  88                                int *out_count, void *data);
  89    void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
  90    __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
  91                              int *width, int *height,
  92                              unsigned int *attachments, int count,
  93                              int *out_count, void *data);
  94    int (*image_get_buffers)(__DRIdrawable *driDrawable,
  95                             unsigned int format,
  96                             uint32_t *stamp,
  97                             void *loaderPrivate,
  98                             uint32_t buffer_mask,
  99                             struct __DRIimageList *buffers);
 100    void (*swrast_put_image2)(__DRIdrawable *driDrawable,
 101                              int            op,
 102                              int            x,
 103                              int            y,
 104                              int            width,
 105                              int            height,
 106                              int            stride,
 107                              char          *data,
 108                              void          *loaderPrivate);
 109    void (*swrast_get_image)(__DRIdrawable *driDrawable,
 110                             int            x,
 111                             int            y,
 112                             int            width,
 113                             int            height,
 114                             char          *data,
 115                             void          *loaderPrivate);
 116
 117    struct wl_drm *wl_drm;
 118
 119    const struct gbm_dri_visual *visual_table;
 120    int num_visuals;
 121 };
 122
 123 struct gbm_dri_bo {
 124    struct gbm_bo base;
 125
 126    __DRIimage *image;
 127
 128    /* Used for cursors and the swrast front BO */
 129    uint32_t handle, size;
 130    void *map;
 131 };
 132
 133 struct gbm_dri_surface {
 134    struct gbm_surface base;
 135
 136    void *dri_private;
 137 };
 138
 139 static inline struct gbm_dri_device *
 140 gbm_dri_device(struct gbm_device *gbm)
 141 {
 142    return (struct gbm_dri_device *) gbm;
 143 }
 144
 145 static inline struct gbm_dri_bo *
 146 gbm_dri_bo(struct gbm_bo *bo)
 147 {
 148    return (struct gbm_dri_bo *) bo;
 149 }
 150
 151 static inline struct gbm_dri_surface *
 152 gbm_dri_surface(struct gbm_surface *surface)
 153 {
 154    return (struct gbm_dri_surface *) surface;
 155 }
 156
 157 static inline void *
 158 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
 159 {
 160    struct drm_mode_map_dumb map_arg;
 161    int ret;
 162
 163    if (bo->image != NULL)
 164       return NULL;
 165
 166    if (bo->map != NULL)
 167       return bo->map;
 168
 169    memset(&map_arg, 0, sizeof(map_arg));
 170    map_arg.handle = bo->handle;
 171
 172    ret = drmIoctl(bo->base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
 173    if (ret)
 174       return NULL;
 175
 176    bo->map = mmap(0, bo->size, PROT_WRITE,
 177                   MAP_SHARED, bo->base.gbm->fd, map_arg.offset);
 178    if (bo->map == MAP_FAILED) {
 179       bo->map = NULL;
 180       return NULL;
 181    }
 182
 183    return bo->map;
 184 }
 185
 186 static inline void
 187 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
 188 {
 189    munmap(bo->map, bo->size);
 190    bo->map = NULL;
 191 }
 192
 193 #endif