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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  *    Kristian Høgsberg <krh@bitplanet.net>
26  */
27 
28 #ifndef EGL_DRI2_INCLUDED
29 #define EGL_DRI2_INCLUDED
30 
31 #ifdef HAVE_X11_PLATFORM
32 #include <xcb/xcb.h>
33 #include <xcb/dri2.h>
34 #include <xcb/xfixes.h>
35 #include <X11/Xlib-xcb.h>
36 #endif
37 
38 #ifdef HAVE_WAYLAND_PLATFORM
39 #include <wayland-client.h>
40 #include "wayland-drm.h"
41 #include "wayland-egl-priv.h"
42 #endif
43 
44 #include <GL/gl.h>
45 #include <GL/internal/dri_interface.h>
46 
47 #ifdef HAVE_DRM_PLATFORM
48 #include <gbm_driint.h>
49 #endif
50 
51 #ifdef HAVE_ANDROID_PLATFORM
52 #define LOG_TAG "EGL-DRI2"
53 
54 #if ANDROID_VERSION >= 0x0400
55 #  include <system/window.h>
56 #else
57 #  define android_native_buffer_t ANativeWindowBuffer
58 #  include <ui/egl/android_natives.h>
59 #  include <ui/android_native_buffer.h>
60 #endif
61 
62 #include <hardware/gralloc.h>
63 #include <gralloc_drm_handle.h>
64 #include <cutils/log.h>
65 
66 #endif /* HAVE_ANDROID_PLATFORM */
67 
68 #include "eglconfig.h"
69 #include "eglcontext.h"
70 #include "egldisplay.h"
71 #include "egldriver.h"
72 #include "eglcurrent.h"
73 #include "egllog.h"
74 #include "eglsurface.h"
75 #include "eglimage.h"
76 
77 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
78 
79 struct dri2_egl_driver
80 {
81    _EGLDriver base;
82 
83    void *handle;
84    _EGLProc (*get_proc_address)(const char *procname);
85    void (*glFlush)(void);
86 };
87 
88 struct dri2_egl_display
89 {
90    int                       dri2_major;
91    int                       dri2_minor;
92    __DRIscreen              *dri_screen;
93    int                       own_dri_screen;
94    const __DRIconfig       **driver_configs;
95    void                     *driver;
96    __DRIcoreExtension       *core;
97    __DRIdri2Extension       *dri2;
98    __DRIswrastExtension     *swrast;
99    __DRI2flushExtension     *flush;
100    __DRItexBufferExtension  *tex_buffer;
101    __DRIimageExtension      *image;
102    __DRIrobustnessExtension *robustness;
103    int                       fd;
104 
105    int                       own_device;
106    int                       swap_available;
107    int                       invalidate_available;
108 #ifdef HAVE_DRM_PLATFORM
109    struct gbm_dri_device    *gbm_dri;
110 #endif
111 
112    char                     *device_name;
113    char                     *driver_name;
114 
115    __DRIdri2LoaderExtension    dri2_loader_extension;
116    __DRIswrastLoaderExtension  swrast_loader_extension;
117    const __DRIextension     *extensions[4];
118 
119 #ifdef HAVE_X11_PLATFORM
120    xcb_connection_t         *conn;
121 #endif
122 
123 #ifdef HAVE_WAYLAND_PLATFORM
124    struct wl_display        *wl_dpy;
125    struct wl_registry       *wl_registry;
126    struct wl_drm            *wl_server_drm;
127    struct wl_drm            *wl_drm;
128    struct wl_event_queue    *wl_queue;
129    int			     authenticated;
130    int			     formats;
131 #endif
132 
133    int (*authenticate) (_EGLDisplay *disp, uint32_t id);
134 };
135 
136 struct dri2_egl_context
137 {
138    _EGLContext   base;
139    __DRIcontext *dri_context;
140 };
141 
142 #ifdef HAVE_WAYLAND_PLATFORM
143 enum wayland_buffer_type {
144    WL_BUFFER_FRONT,
145    WL_BUFFER_BACK,
146    WL_BUFFER_THIRD,
147    WL_BUFFER_COUNT
148 };
149 #endif
150 
151 struct dri2_egl_surface
152 {
153    _EGLSurface          base;
154    __DRIdrawable       *dri_drawable;
155    __DRIbuffer          buffers[5];
156    int                  buffer_count;
157    int                  have_fake_front;
158    int                  swap_interval;
159 
160 #ifdef HAVE_X11_PLATFORM
161    xcb_drawable_t       drawable;
162    xcb_xfixes_region_t  region;
163    int                  depth;
164    int                  bytes_per_pixel;
165    xcb_gcontext_t       gc;
166    xcb_gcontext_t       swapgc;
167 #endif
168 
169 #ifdef HAVE_WAYLAND_PLATFORM
170    struct wl_egl_window  *wl_win;
171    struct wl_egl_pixmap  *wl_pix;
172    struct wl_buffer      *wl_drm_buffer[WL_BUFFER_COUNT];
173    int                    wl_buffer_lock[WL_BUFFER_COUNT];
174    int                    dx;
175    int                    dy;
176    __DRIbuffer           *dri_buffers[__DRI_BUFFER_COUNT];
177    __DRIbuffer           *third_buffer;
178    __DRIbuffer           *pending_buffer;
179    struct wl_callback    *frame_callback;
180    struct wl_callback    *pending_buffer_callback;
181    int			  format;
182 #endif
183 
184 #ifdef HAVE_DRM_PLATFORM
185    struct gbm_dri_surface *gbm_surf;
186    struct {
187       struct gbm_bo       *bo;
188       int                  locked;
189    } color_buffers[3], *back, *current;
190 #ifndef HAVE_WAYLAND_PLATFORM
191    __DRIbuffer           *dri_buffers[__DRI_BUFFER_COUNT];
192 #endif
193 #endif
194 
195 #ifdef HAVE_ANDROID_PLATFORM
196    struct ANativeWindow *window;
197    struct ANativeWindowBuffer *buffer;
198 
199    /* EGL-owned buffers */
200    __DRIbuffer           *local_buffers[__DRI_BUFFER_COUNT];
201 #endif
202 };
203 
204 struct dri2_egl_buffer {
205    __DRIbuffer *dri_buffer;
206    struct dri2_egl_display *dri2_dpy;
207 };
208 
209 
210 struct dri2_egl_config
211 {
212    _EGLConfig         base;
213    const __DRIconfig *dri_single_config;
214    const __DRIconfig *dri_double_config;
215 };
216 
217 struct dri2_egl_image
218 {
219    _EGLImage   base;
220    __DRIimage *dri_image;
221 };
222 
223 /* standard typecasts */
224 _EGL_DRIVER_STANDARD_TYPECASTS(dri2_egl)
225 _EGL_DRIVER_TYPECAST(dri2_egl_image, _EGLImage, obj)
226 
227 extern const __DRIimageLookupExtension image_lookup_extension;
228 extern const __DRIuseInvalidateExtension use_invalidate;
229 
230 EGLBoolean
231 dri2_load_driver(_EGLDisplay *disp);
232 
233 /* Helper for platforms not using dri2_create_screen */
234 void
235 dri2_setup_screen(_EGLDisplay *disp);
236 
237 EGLBoolean
238 dri2_load_driver_swrast(_EGLDisplay *disp);
239 
240 EGLBoolean
241 dri2_create_screen(_EGLDisplay *disp);
242 
243 __DRIimage *
244 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data);
245 
246 struct dri2_egl_config *
247 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
248 		int depth, EGLint surface_type, const EGLint *attr_list,
249 		const unsigned int *rgba_masks);
250 
251 _EGLImage *
252 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
253 		      _EGLContext *ctx, EGLenum target,
254 		      EGLClientBuffer buffer, const EGLint *attr_list);
255 
256 EGLBoolean
257 dri2_initialize_x11(_EGLDriver *drv, _EGLDisplay *disp);
258 
259 EGLBoolean
260 dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp);
261 
262 EGLBoolean
263 dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp);
264 
265 EGLBoolean
266 dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *disp);
267 
268 char *
269 dri2_get_driver_for_fd(int fd);
270 char *
271 dri2_get_device_name_for_fd(int fd);
272 
273 #endif /* EGL_DRI2_INCLUDED */
274