void
HwComposerBackend_v10::swap(EGLNativeDisplayType display, EGLSurface surface)
{
HWC_PLUGIN_ASSERT_ZERO(!(hwc_list->retireFenceFd == -1));
// Wait for vsync before posting new frame
// or force swap if exceeding the vsync timeframe
vsync_mutex.lock();
vsync_cond.wait(&vsync_mutex, 1000/vsyncFPS);
vsync_mutex.unlock();
hwc_list->dpy = EGL_NO_DISPLAY;
hwc_list->sur = EGL_NO_SURFACE;
HWC_PLUGIN_ASSERT_ZERO(hwc_device->prepare(hwc_device, hwc_numDisplays, hwc_mList));
// (dpy, sur) is the target of SurfaceFlinger's OpenGL ES composition for
// HWC_DEVICE_VERSION_1_0. They aren't relevant to prepare. The set call
// should commit this surface atomically to the display along with any
// overlay layers.
hwc_list->dpy = eglGetCurrentDisplay();
hwc_list->sur = eglGetCurrentSurface(EGL_DRAW);
dump_display_contents(hwc_list);
HWC_PLUGIN_ASSERT_ZERO(hwc_device->set(hwc_device, hwc_numDisplays, hwc_mList));
if (hwc_list->retireFenceFd != -1) {
sync_wait(hwc_list->retireFenceFd, -1);
close(hwc_list->retireFenceFd);
hwc_list->retireFenceFd = -1;
}
}
HwComposerBackend *
HwComposerBackend::create()
{
hw_module_t *hwc_module = NULL;
hw_device_t *hwc_device = NULL;
// Some implementations insist on having the framebuffer module opened before loading
// the hardware composer one. Therefor we rely on using the fbdev HYBRIS_EGLPLATFORM
// here and use eglGetDisplay to initialize it.
eglGetDisplay(EGL_DEFAULT_DISPLAY);
// Open hardware composer
HWC_PLUGIN_ASSERT_ZERO(hw_get_module(HWC_HARDWARE_MODULE_ID, (const hw_module_t **)(&hwc_module)));
fprintf(stderr, "== hwcomposer module ==\n");
fprintf(stderr, " * Address: %p\n", hwc_module);
fprintf(stderr, " * Module API Version: %x\n", hwc_module->module_api_version);
fprintf(stderr, " * HAL API Version: %x\n", hwc_module->hal_api_version); /* should be zero */
fprintf(stderr, " * Identifier: %s\n", hwc_module->id);
fprintf(stderr, " * Name: %s\n", hwc_module->name);
fprintf(stderr, " * Author: %s\n", hwc_module->author);
fprintf(stderr, "== hwcomposer module ==\n");
// Open hardware composer device
HWC_PLUGIN_ASSERT_ZERO(hwc_module->methods->open(hwc_module, HWC_HARDWARE_COMPOSER, &hwc_device));
fprintf(stderr, "== hwcomposer device ==\n");
fprintf(stderr, " * Version: %x\n", hwc_device->version);
fprintf(stderr, " * Module: %p\n", hwc_device->module);
fprintf(stderr, "== hwcomposer device ==\n");
// Determine which backend we use based on the supported module API version
switch (hwc_device->version) {
case HWC_DEVICE_API_VERSION_0_1:
case HWC_DEVICE_API_VERSION_0_2:
case HWC_DEVICE_API_VERSION_0_3:
return new HwComposerBackend_v0(hwc_module, hwc_device);
break;
#ifdef HWC_DEVICE_API_VERSION_1_0
case HWC_DEVICE_API_VERSION_1_0:
return new HwComposerBackend_v10(hwc_module, hwc_device);
break;
#endif /* HWC_DEVICE_API_VERSION_1_0 */
#ifdef HWC_PLUGIN_HAVE_HWCOMPOSER1_API
case HWC_DEVICE_API_VERSION_1_1:
#ifdef HWC_DEVICE_API_VERSION_1_2
case HWC_DEVICE_API_VERSION_1_2:
#endif /* HWC_DEVICE_API_VERSION_1_2 */
#ifdef HWC_DEVICE_API_VERSION_1_3
case HWC_DEVICE_API_VERSION_1_3:
#endif /* HWC_DEVICE_API_VERSION_1_3 */
return new HwComposerBackend_v11(hwc_module, hwc_device);
break;
#endif /* HWC_PLUGIN_HAVE_HWCOMPOSER1_API */
default:
fprintf(stderr, "Unknown hwcomposer API: 0x%x\n",
hwc_module->module_api_version);
return NULL;
break;
}
}
HwComposerBackend *
HwComposerBackend::create()
{
hw_module_t *hwc_module = NULL;
hw_device_t *hwc_device = NULL;
// Some implementations insist on having the framebuffer module opened before loading
// the hardware composer one. Therefor we rely on using the fbdev HYBRIS_EGLPLATFORM
// here and use eglGetDisplay to initialize it.
if (qEnvironmentVariableIsEmpty("QT_QPA_NO_FRAMEBUFFER_FIRST")) {
eglGetDisplay(EGL_DEFAULT_DISPLAY);
}
// Open hardware composer
HWC_PLUGIN_ASSERT_ZERO(hw_get_module(HWC_HARDWARE_MODULE_ID, (const hw_module_t **)(&hwc_module)));
fprintf(stderr, "== hwcomposer module ==\n");
fprintf(stderr, " * Address: %p\n", hwc_module);
fprintf(stderr, " * Module API Version: %x\n", hwc_module->module_api_version);
fprintf(stderr, " * HAL API Version: %x\n", hwc_module->hal_api_version); /* should be zero */
fprintf(stderr, " * Identifier: %s\n", hwc_module->id);
fprintf(stderr, " * Name: %s\n", hwc_module->name);
fprintf(stderr, " * Author: %s\n", hwc_module->author);
fprintf(stderr, "== hwcomposer module ==\n");
// Open hardware composer device
HWC_PLUGIN_ASSERT_ZERO(hwc_module->methods->open(hwc_module, HWC_HARDWARE_COMPOSER, &hwc_device));
uint32_t version = hwc_device->version;
if ((version & 0xffff0000) == 0) {
// Assume header version is always 1
uint32_t header_version = 1;
// Legacy version encoding
version = (version << 16) | header_version;
}
fprintf(stderr, "== hwcomposer device ==\n");
fprintf(stderr, " * Version: %x (interpreted as %x)\n", hwc_device->version, version);
fprintf(stderr, " * Module: %p\n", hwc_device->module);
fprintf(stderr, "== hwcomposer device ==\n");
// Special-case for old hw adaptations that have the version encoded in
// legacy format, we have to check hwc_device->version directly, because
// the constants are actually encoded in the old format
if ((hwc_device->version == HWC_DEVICE_API_VERSION_0_1) ||
(hwc_device->version == HWC_DEVICE_API_VERSION_0_2) ||
(hwc_device->version == HWC_DEVICE_API_VERSION_0_3)) {
return new HwComposerBackend_v0(hwc_module, hwc_device);
}
// Determine which backend we use based on the supported module API version
switch (version) {
case HWC_DEVICE_API_VERSION_0_1:
case HWC_DEVICE_API_VERSION_0_2:
case HWC_DEVICE_API_VERSION_0_3:
return new HwComposerBackend_v0(hwc_module, hwc_device);
break;
#ifdef HWC_DEVICE_API_VERSION_1_0
case HWC_DEVICE_API_VERSION_1_0:
return new HwComposerBackend_v10(hwc_module, hwc_device);
break;
#endif /* HWC_DEVICE_API_VERSION_1_0 */
#ifdef HWC_PLUGIN_HAVE_HWCOMPOSER1_API
case HWC_DEVICE_API_VERSION_1_1:
return new HwComposerBackend_v11(hwc_module, hwc_device, HWC_NUM_DISPLAY_TYPES);
break;
#ifdef HWC_DEVICE_API_VERSION_1_2
case HWC_DEVICE_API_VERSION_1_2:
/* hwcomposer 1.2 and beyond have virtual displays */
return new HwComposerBackend_v11(hwc_module, hwc_device, HWC_NUM_DISPLAY_TYPES);
break;
#endif /* HWC_DEVICE_API_VERSION_1_2 */
#ifdef HWC_DEVICE_API_VERSION_1_3
case HWC_DEVICE_API_VERSION_1_3:
/* kitkat already takes virtual into account so no +1 required */
return new HwComposerBackend_v11(hwc_module, hwc_device, HWC_NUM_DISPLAY_TYPES /*+ 1*/);
break;
#endif /* HWC_DEVICE_API_VERSION_1_3 */
#endif /* HWC_PLUGIN_HAVE_HWCOMPOSER1_API */
default:
fprintf(stderr, "Unknown hwcomposer API: 0x%x/0x%x/0x%x\n",
hwc_module->module_api_version,
hwc_device->version,
version);
return NULL;
break;
}
}
