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 *
gbm_dri_device(struct gbm_device * gbm)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 *
gbm_dri_bo(struct gbm_bo * 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 *
gbm_dri_surface(struct gbm_surface * surface)131 gbm_dri_surface(struct gbm_surface *surface)
132 {
133 return (struct gbm_dri_surface *) surface;
134 }
135
136 static inline void *
gbm_dri_bo_map_dumb(struct gbm_dri_bo * bo)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
gbm_dri_bo_unmap_dumb(struct gbm_dri_bo * bo)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
173