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 #include "kopper_interface.h"
40
41 struct gbm_dri_surface;
42 struct gbm_dri_bo;
43
44 struct gbm_dri_visual {
45 uint32_t gbm_format;
46 int dri_image_format;
47 struct {
48 int red;
49 int green;
50 int blue;
51 int alpha;
52 } rgba_shifts;
53 struct {
54 unsigned int red;
55 unsigned int green;
56 unsigned int blue;
57 unsigned int alpha;
58 } rgba_sizes;
59 bool is_float;
60 };
61
62 struct gbm_dri_device {
63 struct gbm_device base;
64
65 void *driver;
66 char *driver_name; /* Name of the DRI module, without the _dri suffix */
67 bool software; /* A software driver was loaded */
68
69 __DRIscreen *screen;
70 __DRIcontext *context;
71 mtx_t mutex;
72
73 const __DRIcoreExtension *core;
74 const __DRIdri2Extension *dri2;
75 const __DRI2fenceExtension *fence;
76 const __DRIimageExtension *image;
77 const __DRIswrastExtension *swrast;
78 const __DRIkopperExtension *kopper;
79 const __DRI2flushExtension *flush;
80
81 const __DRIconfig **driver_configs;
82 const __DRIextension **loader_extensions;
83 const __DRIextension **driver_extensions;
84
85 __DRIimage *(*lookup_image)(__DRIscreen *screen, void *image, void *data);
86 GLboolean (*validate_image)(void *image, void *data);
87 __DRIimage *(*lookup_image_validated)(void *image, void *data);
88 void *lookup_user_data;
89
90 __DRIbuffer *(*get_buffers)(__DRIdrawable * driDrawable,
91 int *width, int *height,
92 unsigned int *attachments, int count,
93 int *out_count, void *data);
94 void (*flush_front_buffer)(__DRIdrawable * driDrawable, void *data);
95 __DRIbuffer *(*get_buffers_with_format)(__DRIdrawable * driDrawable,
96 int *width, int *height,
97 unsigned int *attachments, int count,
98 int *out_count, void *data);
99 int (*image_get_buffers)(__DRIdrawable *driDrawable,
100 unsigned int format,
101 uint32_t *stamp,
102 void *loaderPrivate,
103 uint32_t buffer_mask,
104 struct __DRIimageList *buffers);
105 void (*swrast_put_image2)(__DRIdrawable *driDrawable,
106 int op,
107 int x,
108 int y,
109 int width,
110 int height,
111 int stride,
112 char *data,
113 void *loaderPrivate);
114 void (*swrast_get_image)(__DRIdrawable *driDrawable,
115 int x,
116 int y,
117 int width,
118 int height,
119 char *data,
120 void *loaderPrivate);
121
122 struct wl_drm *wl_drm;
123
124 const struct gbm_dri_visual *visual_table;
125 int num_visuals;
126 };
127
128 struct gbm_dri_bo {
129 struct gbm_bo base;
130
131 __DRIimage *image;
132
133 /* Used for cursors and the swrast front BO */
134 uint32_t handle, size;
135 void *map;
136 };
137
138 struct gbm_dri_surface {
139 struct gbm_surface base;
140
141 void *dri_private;
142 };
143
144 static inline struct gbm_dri_device *
gbm_dri_device(struct gbm_device * gbm)145 gbm_dri_device(struct gbm_device *gbm)
146 {
147 return (struct gbm_dri_device *) gbm;
148 }
149
150 static inline struct gbm_dri_bo *
gbm_dri_bo(struct gbm_bo * bo)151 gbm_dri_bo(struct gbm_bo *bo)
152 {
153 return (struct gbm_dri_bo *) bo;
154 }
155
156 static inline struct gbm_dri_surface *
gbm_dri_surface(struct gbm_surface * surface)157 gbm_dri_surface(struct gbm_surface *surface)
158 {
159 return (struct gbm_dri_surface *) surface;
160 }
161
162 static inline void *
gbm_dri_bo_map_dumb(struct gbm_dri_bo * bo)163 gbm_dri_bo_map_dumb(struct gbm_dri_bo *bo)
164 {
165 struct drm_mode_map_dumb map_arg;
166 int ret;
167
168 if (bo->image != NULL)
169 return NULL;
170
171 if (bo->map != NULL)
172 return bo->map;
173
174 memset(&map_arg, 0, sizeof(map_arg));
175 map_arg.handle = bo->handle;
176
177 ret = drmIoctl(bo->base.gbm->v0.fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
178 if (ret)
179 return NULL;
180
181 bo->map = mmap(NULL, bo->size, PROT_WRITE,
182 MAP_SHARED, bo->base.gbm->v0.fd, map_arg.offset);
183 if (bo->map == MAP_FAILED) {
184 bo->map = NULL;
185 return NULL;
186 }
187
188 return bo->map;
189 }
190
191 static inline void
gbm_dri_bo_unmap_dumb(struct gbm_dri_bo * bo)192 gbm_dri_bo_unmap_dumb(struct gbm_dri_bo *bo)
193 {
194 munmap(bo->map, bo->size);
195 bo->map = NULL;
196 }
197
198 #endif
199