gbm_driint.h revision 01e04c3f 
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
40struct gbm_dri_surface;
41struct gbm_dri_bo;
42
43struct 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
54struct 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
116struct 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
126struct gbm_dri_surface {
127   struct gbm_surface base;
128
129   void *dri_private;
130};
131
132static inline struct gbm_dri_device *
133gbm_dri_device(struct gbm_device *gbm)
134{
135   return (struct gbm_dri_device *) gbm;
136}
137
138static inline struct gbm_dri_bo *
139gbm_dri_bo(struct gbm_bo *bo)
140{
141   return (struct gbm_dri_bo *) bo;
142}
143
144static inline struct gbm_dri_surface *
145gbm_dri_surface(struct gbm_surface *surface)
146{
147   return (struct gbm_dri_surface *) surface;
148}
149
150static inline void *
151gbm_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
179static inline void
180gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
181{
182   munmap(bo->map, bo->size);
183   bo->map = NULL;
184}
185
186#endif
187