hybris/egl/platforms/fbdev/eglplatform_fbdev.cpp

   1 #include <ws.h>
   2 #include "fbdev_window.h"
   3 #include <malloc.h>
   4 #include <assert.h>
   5 #include <fcntl.h>
   6 #include <stdio.h>
   7 #include <sys/stat.h>
   8 #include <unistd.h>
   9 #include <assert.h>
  10 extern "C" {
  11 #include <eglplatformcommon.h>
  12 };
  13
  14 #include "logging.h"
  15
  16 static int inited = 0;
  17 static gralloc_module_t *gralloc = 0;
  18 static framebuffer_device_t *framebuffer = 0;
  19 static alloc_device_t *alloc = 0;
  20 static FbDevNativeWindow *_nativewindow = NULL;
  21
  22 extern "C" int fbdevws_IsValidDisplay(EGLNativeDisplayType display)
  23 {
  24         if (__sync_fetch_and_add(&inited,1)==0)
  25         {
  26                 int err;
  27                 err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, (const hw_module_t **) &gralloc);
  28                 if (gralloc==NULL) {
  29                         fprintf(stderr, "failed to get gralloc module: (%s)\n",strerror(-err));
  30                         assert(0);
  31                 }
  32
  33                 err = framebuffer_open((hw_module_t *) gralloc, &framebuffer);
  34                 if (err) {
  35                         fprintf(stderr, "ERROR: failed to open framebuffer: (%s)\n",strerror(-err));
  36                         assert(0);
  37                 }
  38                 TRACE("** framebuffer_open: status=(%s) format=x%x", strerror(-err), framebuffer->format);
  39
  40                 err = gralloc_open((const hw_module_t *) gralloc, &alloc);
  41                 if (err) {
  42                         fprintf(stderr, "ERROR: failed to open gralloc: (%s)\n",strerror(-err));
  43                         assert(0);
  44                 }
  45                 TRACE("** gralloc_open %p status=%s", gralloc, strerror(-err));
  46                 eglplatformcommon_init(gralloc, alloc);
  47         }
  48
  49         return display == EGL_DEFAULT_DISPLAY;
  50 }
  51
  52 extern "C" EGLNativeWindowType fbdevws_CreateWindow(EGLNativeWindowType win, EGLNativeDisplayType display)
  53 {
  54         assert (inited >= 1);
  55         assert (_nativewindow == NULL);
  56
  57         _nativewindow = new FbDevNativeWindow(gralloc, alloc, framebuffer);
  58         _nativewindow->common.incRef(&_nativewindow->common);
  59         return (EGLNativeWindowType) static_cast<struct ANativeWindow *>(_nativewindow);
  60 }
  61
  62 extern "C" void fbdevws_DestroyWindow(EGLNativeWindowType win)
  63 {
  64         assert (_nativewindow != NULL);
  65         assert (static_cast<FbDevNativeWindow *>((struct ANativeWindow *)win) == _nativewindow);
  66
  67         _nativewindow->common.decRef(&_nativewindow->common);
  68         /* We are done with it, refcounting will delete the window when appropriate */
  69         _nativewindow = NULL;
  70 }
  71
  72 extern "C" __eglMustCastToProperFunctionPointerType fbdevws_eglGetProcAddress(const char *procname)
  73 {
  74         return eglplatformcommon_eglGetProcAddress(procname);
  75 }
  76
  77 extern "C" void fbdevws_passthroughImageKHR(EGLContext *ctx, EGLenum *target, EGLClientBuffer *buffer, const EGLint **attrib_list)
  78 {
  79         eglplatformcommon_passthroughImageKHR(ctx, target, buffer, attrib_list);
  80 }
  81
  82 struct ws_module ws_module_info = {
  83         fbdevws_IsValidDisplay,
  84         fbdevws_CreateWindow,
  85         fbdevws_DestroyWindow,
  86         fbdevws_eglGetProcAddress,
  87         fbdevws_passthroughImageKHR,
  88         eglplatformcommon_eglQueryString
  89 };
  90
  91 // vim:ts=4:sw=4:noexpandtab