| // Copyright 2016 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/ozone/platform/drm/gpu/gbm_surfaceless.h" |
| |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/logging.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/threading/worker_pool.h" |
| #include "base/trace_event/trace_event.h" |
| #include "ui/ozone/common/egl_util.h" |
| #include "ui/ozone/platform/drm/gpu/drm_vsync_provider.h" |
| #include "ui/ozone/platform/drm/gpu/drm_window_proxy.h" |
| #include "ui/ozone/platform/drm/gpu/gbm_surface_factory.h" |
| #include "ui/ozone/platform/drm/gpu/scanout_buffer.h" |
| |
| namespace ui { |
| |
| namespace { |
| |
| void WaitForFence(EGLDisplay display, EGLSyncKHR fence) { |
| eglClientWaitSyncKHR(display, fence, EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, |
| EGL_FOREVER_KHR); |
| } |
| |
| } // namespace |
| |
| GbmSurfaceless::GbmSurfaceless(GbmSurfaceFactory* surface_factory, |
| std::unique_ptr<DrmWindowProxy> window, |
| gfx::AcceleratedWidget widget) |
| : SurfacelessEGL(gfx::Size()), |
| surface_factory_(surface_factory), |
| window_(std::move(window)), |
| widget_(widget), |
| has_implicit_external_sync_( |
| HasEGLExtension("EGL_ARM_implicit_external_sync")), |
| has_image_flush_external_( |
| HasEGLExtension("EGL_EXT_image_flush_external")), |
| weak_factory_(this) { |
| surface_factory_->RegisterSurface(window_->widget(), this); |
| unsubmitted_frames_.push_back(new PendingFrame()); |
| } |
| |
| void GbmSurfaceless::QueueOverlayPlane(const OverlayPlane& plane) { |
| planes_.push_back(plane); |
| } |
| |
| bool GbmSurfaceless::Initialize(gl::GLSurface::Format format) { |
| if (!SurfacelessEGL::Initialize(format)) |
| return false; |
| vsync_provider_ = base::MakeUnique<DrmVSyncProvider>(window_.get()); |
| if (!vsync_provider_) |
| return false; |
| return true; |
| } |
| |
| gfx::SwapResult GbmSurfaceless::SwapBuffers() { |
| NOTREACHED(); |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| |
| bool GbmSurfaceless::ScheduleOverlayPlane(int z_order, |
| gfx::OverlayTransform transform, |
| gl::GLImage* image, |
| const gfx::Rect& bounds_rect, |
| const gfx::RectF& crop_rect) { |
| unsubmitted_frames_.back()->overlays.push_back( |
| gl::GLSurfaceOverlay(z_order, transform, image, bounds_rect, crop_rect)); |
| return true; |
| } |
| |
| bool GbmSurfaceless::IsOffscreen() { |
| return false; |
| } |
| |
| gfx::VSyncProvider* GbmSurfaceless::GetVSyncProvider() { |
| return vsync_provider_.get(); |
| } |
| |
| bool GbmSurfaceless::SupportsAsyncSwap() { |
| return true; |
| } |
| |
| bool GbmSurfaceless::SupportsPostSubBuffer() { |
| return true; |
| } |
| |
| gfx::SwapResult GbmSurfaceless::PostSubBuffer(int x, |
| int y, |
| int width, |
| int height) { |
| // The actual sub buffer handling is handled at higher layers. |
| NOTREACHED(); |
| return gfx::SwapResult::SWAP_FAILED; |
| } |
| |
| void GbmSurfaceless::SwapBuffersAsync(const SwapCompletionCallback& callback) { |
| TRACE_EVENT0("drm", "GbmSurfaceless::SwapBuffersAsync"); |
| // If last swap failed, don't try to schedule new ones. |
| if (!last_swap_buffers_result_) { |
| callback.Run(gfx::SwapResult::SWAP_FAILED); |
| return; |
| } |
| |
| glFlush(); |
| unsubmitted_frames_.back()->Flush(); |
| |
| SwapCompletionCallback surface_swap_callback = base::Bind( |
| &GbmSurfaceless::SwapCompleted, weak_factory_.GetWeakPtr(), callback); |
| |
| PendingFrame* frame = unsubmitted_frames_.back(); |
| frame->callback = surface_swap_callback; |
| unsubmitted_frames_.push_back(new PendingFrame()); |
| |
| // TODO: the following should be replaced by a per surface flush as it gets |
| // implemented in GL drivers. |
| if (has_implicit_external_sync_ || has_image_flush_external_) { |
| EGLSyncKHR fence = InsertFence(has_implicit_external_sync_); |
| if (!fence) { |
| callback.Run(gfx::SwapResult::SWAP_FAILED); |
| return; |
| } |
| |
| base::Closure fence_wait_task = |
| base::Bind(&WaitForFence, GetDisplay(), fence); |
| |
| base::Closure fence_retired_callback = |
| base::Bind(&GbmSurfaceless::FenceRetired, weak_factory_.GetWeakPtr(), |
| fence, frame); |
| |
| base::WorkerPool::PostTaskAndReply(FROM_HERE, fence_wait_task, |
| fence_retired_callback, false); |
| return; // Defer frame submission until fence signals. |
| } |
| |
| frame->ready = true; |
| SubmitFrame(); |
| } |
| |
| void GbmSurfaceless::PostSubBufferAsync( |
| int x, |
| int y, |
| int width, |
| int height, |
| const SwapCompletionCallback& callback) { |
| // The actual sub buffer handling is handled at higher layers. |
| SwapBuffersAsync(callback); |
| } |
| |
| EGLConfig GbmSurfaceless::GetConfig() { |
| if (!config_) { |
| EGLint config_attribs[] = {EGL_BUFFER_SIZE, |
| 32, |
| EGL_ALPHA_SIZE, |
| 8, |
| EGL_BLUE_SIZE, |
| 8, |
| EGL_GREEN_SIZE, |
| 8, |
| EGL_RED_SIZE, |
| 8, |
| EGL_RENDERABLE_TYPE, |
| EGL_OPENGL_ES2_BIT, |
| EGL_SURFACE_TYPE, |
| EGL_DONT_CARE, |
| EGL_NONE}; |
| config_ = ChooseEGLConfig(GetDisplay(), config_attribs); |
| } |
| return config_; |
| } |
| |
| GbmSurfaceless::~GbmSurfaceless() { |
| Destroy(); // The EGL surface must be destroyed before SurfaceOzone. |
| surface_factory_->UnregisterSurface(window_->widget()); |
| } |
| |
| GbmSurfaceless::PendingFrame::PendingFrame() {} |
| |
| GbmSurfaceless::PendingFrame::~PendingFrame() {} |
| |
| bool GbmSurfaceless::PendingFrame::ScheduleOverlayPlanes( |
| gfx::AcceleratedWidget widget) { |
| for (const auto& overlay : overlays) |
| if (!overlay.ScheduleOverlayPlane(widget)) |
| return false; |
| return true; |
| } |
| |
| void GbmSurfaceless::PendingFrame::Flush() { |
| for (const auto& overlay : overlays) |
| overlay.Flush(); |
| } |
| |
| void GbmSurfaceless::SubmitFrame() { |
| DCHECK(!unsubmitted_frames_.empty()); |
| |
| if (unsubmitted_frames_.front()->ready && !swap_buffers_pending_) { |
| std::unique_ptr<PendingFrame> frame(unsubmitted_frames_.front()); |
| unsubmitted_frames_.weak_erase(unsubmitted_frames_.begin()); |
| swap_buffers_pending_ = true; |
| |
| if (!frame->ScheduleOverlayPlanes(widget_)) { |
| // |callback| is a wrapper for SwapCompleted(). Call it to properly |
| // propagate the failed state. |
| frame->callback.Run(gfx::SwapResult::SWAP_FAILED); |
| return; |
| } |
| |
| if (IsUniversalDisplayLinkDevice()) |
| glFinish(); |
| |
| window_->SchedulePageFlip(planes_, frame->callback); |
| planes_.clear(); |
| } |
| } |
| |
| EGLSyncKHR GbmSurfaceless::InsertFence(bool implicit) { |
| const EGLint attrib_list[] = {EGL_SYNC_CONDITION_KHR, |
| EGL_SYNC_PRIOR_COMMANDS_IMPLICIT_EXTERNAL_ARM, |
| EGL_NONE}; |
| return eglCreateSyncKHR(GetDisplay(), EGL_SYNC_FENCE_KHR, |
| implicit ? attrib_list : NULL); |
| } |
| |
| void GbmSurfaceless::FenceRetired(EGLSyncKHR fence, PendingFrame* frame) { |
| eglDestroySyncKHR(GetDisplay(), fence); |
| frame->ready = true; |
| SubmitFrame(); |
| } |
| |
| void GbmSurfaceless::SwapCompleted(const SwapCompletionCallback& callback, |
| gfx::SwapResult result) { |
| callback.Run(result); |
| swap_buffers_pending_ = false; |
| if (result == gfx::SwapResult::SWAP_FAILED) { |
| last_swap_buffers_result_ = false; |
| return; |
| } |
| |
| SubmitFrame(); |
| } |
| |
| bool GbmSurfaceless::IsUniversalDisplayLinkDevice() { |
| return planes_.empty() ? false : planes_[0].buffer->RequiresGlFinish(); |
| } |
| |
| } // namespace ui |