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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 Hgsberg <krh (at) 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