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 *
gbm_dri_device(struct gbm_device * gbm)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 *
gbm_dri_bo(struct gbm_bo * 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 *
gbm_dri_surface(struct gbm_surface * surface)134 gbm_dri_surface(struct gbm_surface *surface)
135 {
136 return (struct gbm_dri_surface *) surface;
137 }
138
139 static inline void *
gbm_dri_bo_map_dumb(struct gbm_dri_bo * bo)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
gbm_dri_bo_unmap_dumb(struct gbm_dri_bo * bo)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
176