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 bool software; /* A software driver was loaded */
67
68 __DRIscreen *screen;
69 __DRIcontext *context;
70 mtx_t mutex;
71
72 const __DRIcoreExtension *core;
73 const __DRIdri2Extension *dri2;
74 const __DRI2fenceExtension *fence;
75 const __DRIimageExtension *image;
76 const __DRIswrastExtension *swrast;
77 const __DRI2flushExtension *flush;
78
79 const __DRIconfig **driver_configs;
80 const __DRIextension **loader_extensions;
81 const __DRIextension **driver_extensions;
82
83 __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
84 GLboolean (*validate_image)(void *image, void *data);
85 __DRIimage *(*lookup_image_validated)(void *image, void *data);
86 void *lookup_user_data;
87
88 __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
89 int *width, int *height,
90 unsigned int *attachments, int count,
91 int *out_count, void *data);
92 void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
93 __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
94 int *width, int *height,
95 unsigned int *attachments, int count,
96 int *out_count, void *data);
97 int (*image_get_buffers)(__DRIdrawable *driDrawable,
98 unsigned int format,
99 uint32_t *stamp,
100 void *loaderPrivate,
101 uint32_t buffer_mask,
102 struct __DRIimageList *buffers);
103 void (*swrast_put_image2)(__DRIdrawable *driDrawable,
104 int op,
105 int x,
106 int y,
107 int width,
108 int height,
109 int stride,
110 char *data,
111 void *loaderPrivate);
112 void (*swrast_get_image)(__DRIdrawable *driDrawable,
113 int x,
114 int y,
115 int width,
116 int height,
117 char *data,
118 void *loaderPrivate);
119
120 struct wl_drm *wl_drm;
121
122 const struct gbm_dri_visual *visual_table;
123 int num_visuals;
124 };
125
126 struct gbm_dri_bo {
127 struct gbm_bo base;
128
129 __DRIimage *image;
130
131 /* Used for cursors and the swrast front BO */
132 uint32_t handle, size;
133 void *map;
134 };
135
136 struct gbm_dri_surface {
137 struct gbm_surface base;
138
139 void *dri_private;
140 };
141
142 static inline struct gbm_dri_device *
gbm_dri_device(struct gbm_device * gbm)143 gbm_dri_device(struct gbm_device *gbm)
144 {
145 return (struct gbm_dri_device *) gbm;
146 }
147
148 static inline struct gbm_dri_bo *
gbm_dri_bo(struct gbm_bo * bo)149 gbm_dri_bo(struct gbm_bo *bo)
150 {
151 return (struct gbm_dri_bo *) bo;
152 }
153
154 static inline struct gbm_dri_surface *
gbm_dri_surface(struct gbm_surface * surface)155 gbm_dri_surface(struct gbm_surface *surface)
156 {
157 return (struct gbm_dri_surface *) surface;
158 }
159
160 static inline void *
gbm_dri_bo_map_dumb(struct gbm_dri_bo * bo)161 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
162 {
163 struct drm_mode_map_dumb map_arg;
164 int ret;
165
166 if (bo->image != NULL)
167 return NULL;
168
169 if (bo->map != NULL)
170 return bo->map;
171
172 memset(&map_arg, 0, sizeof(map_arg));
173 map_arg.handle = bo->handle;
174
175 ret = drmIoctl(bo->base.gbm->v0.fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
176 if (ret)
177 return NULL;
178
179 bo->map = mmap(0, bo->size, PROT_WRITE,
180 MAP_SHARED, bo->base.gbm->v0.fd, map_arg.offset);
181 if (bo->map == MAP_FAILED) {
182 bo->map = NULL;
183 return NULL;
184 }
185
186 return bo->map;
187 }
188
189 static inline void
gbm_dri_bo_unmap_dumb(struct gbm_dri_bo * bo)190 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
191 {
192 munmap(bo->map, bo->size);
193 bo->map = NULL;
194 }
195
196 #endif
197