gbm_driint.h revision af69d88d 
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 <sys/mman.h>
32#include "gbmint.h"
33
34#include "common_drm.h"
35
36#include <GL/gl.h> /* dri_interface needs GL types */
37#include "GL/internal/dri_interface.h"
38
39struct gbm_dri_surface;
40struct gbm_dri_bo;
41
42struct gbm_dri_device {
43   struct gbm_drm_device base;
44
45   void *driver;
46
47   __DRIscreen *screen;
48
49   const __DRIcoreExtension   *core;
50   const __DRIdri2Extension   *dri2;
51   const __DRIimageExtension  *image;
52   const __DRIswrastExtension *swrast;
53   const __DRI2flushExtension *flush;
54   const __DRIdri2LoaderExtension *loader;
55
56   const __DRIconfig   **driver_configs;
57   const __DRIextension **extensions;
58   const __DRIextension **driver_extensions;
59
60   __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
61   void *lookup_user_data;
62
63   __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
64                               int *width, int *height,
65                               unsigned int *attachments, int count,
66                               int *out_count, void *data);
67   void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
68   __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
69			     int *width, int *height,
70			     unsigned int *attachments, int count,
71			     int *out_count, void *data);
72   int (*image_get_buffers)(__DRIdrawable *driDrawable,
73                            unsigned int format,
74                            uint32_t *stamp,
75                            void *loaderPrivate,
76                            uint32_t buffer_mask,
77                            struct __DRIimageList *buffers);
78   void (*swrast_put_image2)(__DRIdrawable *driDrawable,
79                             int            op,
80                             int            x,
81                             int            y,
82                             int            width,
83                             int            height,
84                             int            stride,
85                             char          *data,
86                             void          *loaderPrivate);
87   void (*swrast_get_image)(__DRIdrawable *driDrawable,
88                            int            x,
89                            int            y,
90                            int            width,
91                            int            height,
92                            char          *data,
93                            void          *loaderPrivate);
94
95   struct wl_drm *wl_drm;
96};
97
98struct gbm_dri_bo {
99   struct gbm_drm_bo base;
100
101   __DRIimage *image;
102
103   /* Used for cursors and the swrast front BO */
104   uint32_t handle, size;
105   void *map;
106};
107
108struct gbm_dri_surface {
109   struct gbm_surface base;
110
111   void *dri_private;
112};
113
114static inline struct gbm_dri_device *
115gbm_dri_device(struct gbm_device *gbm)
116{
117   return (struct gbm_dri_device *) gbm;
118}
119
120static inline struct gbm_dri_bo *
121gbm_dri_bo(struct gbm_bo *bo)
122{
123   return (struct gbm_dri_bo *) bo;
124}
125
126static inline struct gbm_dri_surface *
127gbm_dri_surface(struct gbm_surface *surface)
128{
129   return (struct gbm_dri_surface *) surface;
130}
131
132static inline void *
133gbm_dri_bo_map(struct gbm_dri_bo *bo)
134{
135   struct drm_mode_map_dumb map_arg;
136   int ret;
137
138   if (bo->image != NULL)
139      return NULL;
140
141   if (bo->map != NULL)
142      return bo->map;
143
144   memset(&map_arg, 0, sizeof(map_arg));
145   map_arg.handle = bo->handle;
146
147   ret = drmIoctl(bo->base.base.gbm->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
148   if (ret)
149      return NULL;
150
151   bo->map = mmap(0, bo->size, PROT_WRITE,
152                  MAP_SHARED, bo->base.base.gbm->fd, map_arg.offset);
153   if (bo->map == MAP_FAILED) {
154      bo->map = NULL;
155      return NULL;
156   }
157
158   return bo->map;
159}
160
161static inline void
162gbm_dri_bo_unmap(struct gbm_dri_bo *bo)
163{
164   munmap(bo->map, bo->size);
165   bo->map = NULL;
166}
167
168#endif
169