diff options
Diffstat (limited to 'chromium/ui/gfx/ozone/dri/dri_surface_factory.cc')
| -rw-r--r-- | chromium/ui/gfx/ozone/dri/dri_surface_factory.cc | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/chromium/ui/gfx/ozone/dri/dri_surface_factory.cc b/chromium/ui/gfx/ozone/dri/dri_surface_factory.cc deleted file mode 100644 index 4c201373942..00000000000 --- a/chromium/ui/gfx/ozone/dri/dri_surface_factory.cc +++ /dev/null @@ -1,317 +0,0 @@ -// Copyright 2013 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#include "ui/gfx/ozone/dri/dri_surface_factory.h" - -#include <drm.h> -#include <errno.h> -#include <xf86drm.h> - -#include "base/message_loop/message_loop.h" -#include "third_party/skia/include/core/SkBitmap.h" -#include "third_party/skia/include/core/SkDevice.h" -#include "ui/gfx/native_widget_types.h" -#include "ui/gfx/ozone/dri/dri_skbitmap.h" -#include "ui/gfx/ozone/dri/dri_surface.h" -#include "ui/gfx/ozone/dri/dri_vsync_provider.h" -#include "ui/gfx/ozone/dri/dri_wrapper.h" -#include "ui/gfx/ozone/dri/hardware_display_controller.h" - -namespace gfx { - -namespace { - -const char kDefaultGraphicsCardPath[] = "/dev/dri/card0"; -const char kDPMSProperty[] = "DPMS"; - -const gfx::AcceleratedWidget kDefaultWidgetHandle = 1; - -// DRM callback on page flip events. This callback is triggered after the -// page flip has happened and the backbuffer is now the new frontbuffer -// The old frontbuffer is no longer used by the hardware and can be used for -// future draw operations. -// -// |device| will contain a reference to the |DriSurface| object which -// the event belongs to. -// -// TODO(dnicoara) When we have a FD handler for the DRM calls in the message -// loop, we can move this function in the handler. -void HandlePageFlipEvent(int fd, - unsigned int frame, - unsigned int seconds, - unsigned int useconds, - void* controller) { - static_cast<HardwareDisplayController*>(controller) - ->OnPageFlipEvent(frame, seconds, useconds); -} - -uint32_t GetDriProperty(int fd, drmModeConnector* connector, const char* name) { - for (int i = 0; i < connector->count_props; ++i) { - drmModePropertyPtr property = drmModeGetProperty(fd, connector->props[i]); - if (!property) - continue; - - if (strcmp(property->name, name) == 0) { - uint32_t id = property->prop_id; - drmModeFreeProperty(property); - return id; - } - - drmModeFreeProperty(property); - } - return 0; -} - -uint32_t GetCrtc(int fd, drmModeRes* resources, drmModeConnector* connector) { - // If the connector already has an encoder try to re-use. - if (connector->encoder_id) { - drmModeEncoder* encoder = drmModeGetEncoder(fd, connector->encoder_id); - if (encoder) { - if (encoder->crtc_id) { - uint32_t crtc = encoder->crtc_id; - drmModeFreeEncoder(encoder); - return crtc; - } - drmModeFreeEncoder(encoder); - } - } - - // Try to find an encoder for the connector. - for (int i = 0; i < connector->count_encoders; ++i) { - drmModeEncoder* encoder = drmModeGetEncoder(fd, connector->encoders[i]); - if (!encoder) - continue; - - for (int j = 0; j < resources->count_crtcs; ++j) { - // Check if the encoder is compatible with this CRTC - if (!(encoder->possible_crtcs & (1 << j))) - continue; - - drmModeFreeEncoder(encoder); - return resources->crtcs[j]; - } - } - - return 0; -} - -} // namespace - -DriSurfaceFactory::DriSurfaceFactory() - : drm_(), - state_(UNINITIALIZED), - controller_() { -} - -DriSurfaceFactory::~DriSurfaceFactory() { - if (state_ == INITIALIZED) - ShutdownHardware(); -} - -SurfaceFactoryOzone::HardwareState -DriSurfaceFactory::InitializeHardware() { - CHECK(state_ == UNINITIALIZED); - - // TODO(dnicoara): Short-cut right now. What we want is to look at all the - // graphics devices available and select the primary one. - drm_.reset(CreateWrapper()); - if (drm_->get_fd() < 0) { - LOG(ERROR) << "Cannot open graphics card '" - << kDefaultGraphicsCardPath << "': " << strerror(errno); - state_ = FAILED; - return state_; - } - - state_ = INITIALIZED; - return state_; -} - -void DriSurfaceFactory::ShutdownHardware() { - CHECK(state_ == INITIALIZED); - - controller_.reset(); - drm_.reset(); - - state_ = UNINITIALIZED; -} - -gfx::AcceleratedWidget DriSurfaceFactory::GetAcceleratedWidget() { - CHECK(state_ != FAILED); - - // TODO(dnicoara) When there's more information on which display we want, - // then we can return the widget associated with the display. - // For now just assume we have 1 display device and return it. - if (!controller_.get()) - controller_.reset(new HardwareDisplayController()); - - // TODO(dnicoara) We only have 1 display for now, so only 1 AcceleratedWidget. - // When we'll support multiple displays this needs to be changed to return a - // different handle for every display. - return kDefaultWidgetHandle; -} - -gfx::AcceleratedWidget DriSurfaceFactory::RealizeAcceleratedWidget( - gfx::AcceleratedWidget w) { - CHECK(state_ == INITIALIZED); - // TODO(dnicoara) Once we can handle multiple displays this needs to be - // changed. - CHECK(w == kDefaultWidgetHandle); - - CHECK(controller_->get_state() == - HardwareDisplayController::UNASSOCIATED); - - // Until now the controller is just a stub. Initializing it will link it to a - // hardware display. - if (!InitializeControllerForPrimaryDisplay(drm_.get(), controller_.get())) { - LOG(ERROR) << "Failed to initialize controller"; - return gfx::kNullAcceleratedWidget; - } - - // Create a surface suitable for the current controller. - scoped_ptr<DriSurface> surface(CreateSurface(controller_.get())); - - if (!surface->Initialize()) { - LOG(ERROR) << "Failed to initialize surface"; - return gfx::kNullAcceleratedWidget; - } - - // Bind the surface to the controller. This will register the backing buffers - // with the hardware CRTC such that we can show the buffers. The controller - // takes ownership of the surface. - if (!controller_->BindSurfaceToController(surface.Pass())) { - LOG(ERROR) << "Failed to bind surface to controller"; - return gfx::kNullAcceleratedWidget; - } - - return reinterpret_cast<gfx::AcceleratedWidget>(controller_->get_surface()); -} - -bool DriSurfaceFactory::LoadEGLGLES2Bindings( - AddGLLibraryCallback add_gl_library, - SetGLGetProcAddressProcCallback set_gl_get_proc_address) { - return false; -} - -bool DriSurfaceFactory::AttemptToResizeAcceleratedWidget( - gfx::AcceleratedWidget w, - const gfx::Rect& bounds) { - return false; -} - -bool DriSurfaceFactory::SchedulePageFlip(gfx::AcceleratedWidget w) { - CHECK(state_ == INITIALIZED); - // TODO(dnicoara) Change this CHECK once we're running with the threaded - // compositor. - CHECK(base::MessageLoop::current()->type() == base::MessageLoop::TYPE_UI); - - // TODO(dnicoara) Once we can handle multiple displays this needs to be - // changed. - CHECK(w == kDefaultWidgetHandle); - - if (!controller_->SchedulePageFlip()) - return false; - - // Only wait for the page flip event to finish if it was properly scheduled. - // - // TODO(dnicoara) The following call will wait for the page flip event to - // complete. This means that it will block until the next VSync. Ideally the - // wait should happen in the message loop. The message loop would then - // schedule the next draw event. Alternatively, the VSyncProvider could be - // used to schedule the next draw. Unfortunately, at this point, - // DriOutputDevice does not provide any means to use any of the above - // solutions. Note that if the DRM callback does not schedule the next draw, - // then some sort of synchronization needs to take place since starting a new - // draw before the page flip happened is considered an error. However we can - // not use any lock constructs unless we're using the threaded compositor. - // Note that the following call does not use any locks, so it is safe to be - // made on the UI thread (thought not ideal). - WaitForPageFlipEvent(drm_->get_fd()); - - return true; -} - -SkCanvas* DriSurfaceFactory::GetCanvasForWidget( - gfx::AcceleratedWidget w) { - CHECK(state_ == INITIALIZED); - return reinterpret_cast<DriSurface*>(w)->GetDrawableForWidget(); -} - -gfx::VSyncProvider* DriSurfaceFactory::GetVSyncProvider( - gfx::AcceleratedWidget w) { - CHECK(state_ == INITIALIZED); - return new DriVSyncProvider(controller_.get()); -} - -//////////////////////////////////////////////////////////////////////////////// -// DriSurfaceFactory private - -DriSurface* DriSurfaceFactory::CreateSurface( - HardwareDisplayController* controller) { - return new DriSurface(controller); -} - -DriWrapper* DriSurfaceFactory::CreateWrapper() { - return new DriWrapper(kDefaultGraphicsCardPath); -} - -bool DriSurfaceFactory::InitializeControllerForPrimaryDisplay( - DriWrapper* drm, - HardwareDisplayController* controller) { - CHECK(state_ == SurfaceFactoryOzone::INITIALIZED); - - drmModeRes* resources = drmModeGetResources(drm->get_fd()); - - // Search for an active connector. - for (int i = 0; i < resources->count_connectors; ++i) { - drmModeConnector* connector = drmModeGetConnector( - drm->get_fd(), - resources->connectors[i]); - - if (!connector) - continue; - - if (connector->connection != DRM_MODE_CONNECTED || - connector->count_modes == 0) { - drmModeFreeConnector(connector); - continue; - } - - uint32_t crtc = GetCrtc(drm->get_fd(), resources, connector); - - if (!crtc) - continue; - - uint32_t dpms_property_id = GetDriProperty(drm->get_fd(), - connector, - kDPMSProperty); - - // TODO(dnicoara) Select one mode for now. In the future we may need to - // save all the modes and allow the user to choose a specific mode. Or - // even some fullscreen applications may need to change the mode. - controller->SetControllerInfo( - drm, - connector->connector_id, - crtc, - dpms_property_id, - connector->modes[0]); - - drmModeFreeConnector(connector); - - return true; - } - - return false; -} - -void DriSurfaceFactory::WaitForPageFlipEvent(int fd) { - drmEventContext drm_event; - drm_event.version = DRM_EVENT_CONTEXT_VERSION; - drm_event.page_flip_handler = HandlePageFlipEvent; - drm_event.vblank_handler = NULL; - - // Wait for the page-flip to complete. - drmHandleEvent(fd, &drm_event); -} - -} // namespace gfx |