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 *
gbm_dri_device(struct gbm_device * gbm)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 *
gbm_dri_bo(struct gbm_bo * 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 *
gbm_dri_surface(struct gbm_surface * surface)152 gbm_dri_surface(struct gbm_surface *surface)
153 {
154 return (struct gbm_dri_surface *) surface;
155 }
156
157 static inline void *
gbm_dri_bo_map_dumb(struct gbm_dri_bo * bo)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
gbm_dri_bo_unmap_dumb(struct gbm_dri_bo * bo)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
194