diff options
Diffstat (limited to 'src/core/compositor/display_gl_output_surface.cpp')
| -rw-r--r-- | src/core/compositor/display_gl_output_surface.cpp | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/src/core/compositor/display_gl_output_surface.cpp b/src/core/compositor/display_gl_output_surface.cpp deleted file mode 100644 index dfc3cb7c6..000000000 --- a/src/core/compositor/display_gl_output_surface.cpp +++ /dev/null @@ -1,341 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2019 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtWebEngine module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "display_gl_output_surface.h" - -#include "type_conversion.h" - -#include "base/threading/thread_task_runner_handle.h" -#include "components/viz/service/display/display.h" -#include "components/viz/service/display/output_surface_frame.h" -#include "gpu/command_buffer/client/gles2_implementation.h" -#include "gpu/command_buffer/client/gles2_interface.h" -#include "gpu/command_buffer/service/mailbox_manager.h" -#include "gpu/command_buffer/service/texture_base.h" -#include "gpu/ipc/in_process_command_buffer.h" -#include "ui/gfx/buffer_format_util.h" - -namespace QtWebEngineCore { - -DisplayGLOutputSurface::DisplayGLOutputSurface( - scoped_refptr<viz::VizProcessContextProvider> contextProvider) - : OutputSurface(contextProvider) - , Compositor(Compositor::Type::OpenGL) - , m_commandBuffer(contextProvider->command_buffer()) - , m_gl(contextProvider->ContextGL()) - , m_vizContextProvider(contextProvider) -{ - capabilities_.uses_default_gl_framebuffer = false; - m_gl->GenFramebuffers(1, &m_fboId); -} - -DisplayGLOutputSurface::~DisplayGLOutputSurface() -{ - unbind(); - m_vizContextProvider->SetUpdateVSyncParametersCallback(viz::UpdateVSyncParametersCallback()); - m_gl->DeleteFramebuffers(1, &m_fboId); -} - -// Called from viz::Display::Initialize. -void DisplayGLOutputSurface::BindToClient(viz::OutputSurfaceClient *client) -{ - m_client = client; -} - -void DisplayGLOutputSurface::SetFrameSinkId(const viz::FrameSinkId &id) -{ - bind(id); -} - -// Triggered by ui::Compositor::SetVisible(true). -void DisplayGLOutputSurface::EnsureBackbuffer() -{ -} - -// Triggered by ui::Compositor::SetVisible(false). Framebuffer must be cleared. -void DisplayGLOutputSurface::DiscardBackbuffer() -{ - NOTIMPLEMENTED(); - // m_gl->DiscardBackbufferCHROMIUM(); -} - -// Called from viz::DirectRenderer::DrawFrame before rendering starts, but only -// if the parameters differ from the previous Reshape call. -// -// Parameters: -// -// - sizeInPixels comes from ui::Compositor::SetScaleAndSize via -// viz::HostContextFactoryPrivate::ResizeDisplay. -// -// - devicePixelRatio comes from viz::CompositorFrame::device_scale_factor() -// via viz::RootCompositorFrameSinkImpl::SubmitCompositorFrame and -// viz::Display::SetLocalSurfaceId. -// -// - colorSpace and hasAlpha correspond to the color_space and -// has_transparent_background properties of the root viz::RenderPass. -// -// - useStencil should create a stencil buffer, but this is only needed for -// overdraw feedback (--show-overdraw-feedback), so it's safe to ignore. -// Accordingly, capabilities_.supports_stencil should be set to false. -// -void DisplayGLOutputSurface::Reshape(const gfx::Size &sizeInPixels, - float devicePixelRatio, - const gfx::ColorSpace &colorSpace, - gfx::BufferFormat format, - bool /*useStencil*/) -{ - bool hasAlpha = gfx::AlphaBitsForBufferFormat(format) > 0; - m_currentShape = Shape{sizeInPixels, devicePixelRatio, colorSpace, hasAlpha}; - m_gl->ResizeCHROMIUM(sizeInPixels.width(), sizeInPixels.height(), devicePixelRatio, - colorSpace.AsGLColorSpace(), hasAlpha); -} - -std::unique_ptr<DisplayGLOutputSurface::Buffer> DisplayGLOutputSurface::makeBuffer(const Shape &shape) -{ - std::unique_ptr<Buffer> buffer = std::make_unique<Buffer>(this); - buffer->shape = shape; - m_gl->GenTextures(1, &buffer->clientId); - m_gl->BindTexture(GL_TEXTURE_2D, buffer->clientId); - m_gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - m_gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - m_gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - m_gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - uint32_t width = shape.sizeInPixels.width(); - uint32_t height = shape.sizeInPixels.height(); - uint32_t format = shape.hasAlpha ? GL_RGBA : GL_RGB; - m_gl->TexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, nullptr); - return buffer; -} - -void DisplayGLOutputSurface::deleteBufferResources(Buffer *buffer) -{ - m_gl->DeleteTextures(1, &buffer->clientId); -} - -// Called by viz::GLRenderer during rendering whenever it switches to the root -// render pass. -void DisplayGLOutputSurface::BindFramebuffer() -{ - if (!m_backBuffer || m_backBuffer->shape != m_currentShape) - m_backBuffer = makeBuffer(m_currentShape); - - m_gl->BindFramebuffer(GL_FRAMEBUFFER, m_fboId); - m_gl->FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_backBuffer->clientId, 0); -} - -// Called from viz::Display::DrawAndSwap after rendering. -// -// Parameters: -// -// - frame.size is the same as the size given to Reshape. -// -// - frame.sub_buffer_rect and frame.content_bounds are never used since these -// are only enabled if gl::GLSurface::SupportsPostSubBuffer() or -// gl::GLSurface::SupportsSwapBuffersWithBounds() are true, respectively, -// but this not the case for any offscreen gl::GLSurface. -// -// - frame.latency_info is viz::CompositorFrame::metadata.latency_info. -void DisplayGLOutputSurface::SwapBuffers(viz::OutputSurfaceFrame frame) -{ - DCHECK(frame.size == m_currentShape.sizeInPixels); - DCHECK(!frame.sub_buffer_rect.has_value()); - DCHECK(frame.content_bounds.empty()); - DCHECK(m_backBuffer); - - m_gl->BindFramebuffer(GL_FRAMEBUFFER, m_fboId); - m_gl->FramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0); - gpu::SyncToken syncToken; - m_gl->GenSyncTokenCHROMIUM(syncToken.GetData()); - - unsigned int clientId = m_backBuffer->clientId; - - // Now some thread-hopping: - // - // - We start here on the viz thread (client side of command buffer). - // - // - Then we'll jump to the gpu thread (service side of command buffer) to - // get the real OpenGL texture id. - // - // - Then we'll get a call from the Qt Quick Scene Graph thread (could be - // a separate thread or the main thread). - // - // - Finally we'll return to the viz thread to acknowledge the swap. - - { - QMutexLocker locker(&m_mutex); - m_taskRunner = base::ThreadTaskRunnerHandle::Get(); - m_middleBuffer = std::move(m_backBuffer); - m_middleBuffer->serviceId = 0; - } - - m_commandBuffer->GetTextureQt( - clientId, - base::BindOnce(&DisplayGLOutputSurface::swapBuffersOnGpuThread, base::Unretained(this)), - std::vector<gpu::SyncToken>{syncToken}); -} - -void DisplayGLOutputSurface::swapBuffersOnGpuThread(unsigned int id, std::unique_ptr<gl::GLFence> fence) -{ - { - QMutexLocker locker(&m_mutex); - m_middleBuffer->serviceId = id; - m_middleBuffer->fence = CompositorResourceFence::create(std::move(fence)); - m_readyToUpdate = true; - } - - if (auto obs = observer()) - obs->readyToSwap(); -} - -void DisplayGLOutputSurface::swapBuffersOnVizThread() -{ - { - QMutexLocker locker(&m_mutex); - m_backBuffer = std::move(m_middleBuffer); - } - - const auto now = base::TimeTicks::Now(); - m_client->DidReceiveSwapBuffersAck(gfx::SwapTimings{now, now}); - m_client->DidReceivePresentationFeedback( - gfx::PresentationFeedback(now, base::TimeDelta(), - gfx::PresentationFeedback::Flags::kVSync)); -} - -void DisplayGLOutputSurface::SetDrawRectangle(const gfx::Rect &) -{ -} - -// Returning true here will cause viz::GLRenderer to try to render the output -// surface as an overlay plane (see viz::DirectRenderer::DrawFrame and -// viz::GLRenderer::ScheduleOverlays). -bool DisplayGLOutputSurface::IsDisplayedAsOverlayPlane() const -{ - return false; -} - -// Only used if IsDisplayedAsOverlayPlane was true (called from -// viz::GLRenderer::ScheduleOverlays). -unsigned DisplayGLOutputSurface::GetOverlayTextureId() const -{ - return 0; -} - -// Called by viz::GLRenderer but always false in all implementations except for -// android_webview::ParentOutputSurface. -bool DisplayGLOutputSurface::HasExternalStencilTest() const -{ - return false; -} - -// Only called if HasExternalStencilTest was true. Dead code? -void DisplayGLOutputSurface::ApplyExternalStencil() -{ - NOTREACHED(); -} - -// Called from GLRenderer::GetFramebufferCopyTextureFormat when using -// glCopyTexSubImage2D on our framebuffer. -uint32_t DisplayGLOutputSurface::GetFramebufferCopyTextureFormat() -{ - return m_currentShape.hasAlpha ? GL_RGBA : GL_RGB; -} - -// Called from viz::DirectRenderer::DrawFrame, only used for overlays. -unsigned DisplayGLOutputSurface::UpdateGpuFence() -{ - NOTREACHED(); - return 0; -} - -void DisplayGLOutputSurface::SetUpdateVSyncParametersCallback(viz::UpdateVSyncParametersCallback callback) -{ - m_vizContextProvider->SetUpdateVSyncParametersCallback(std::move(callback)); -} - -void DisplayGLOutputSurface::SetDisplayTransformHint(gfx::OverlayTransform) -{ -} - -gfx::OverlayTransform DisplayGLOutputSurface::GetDisplayTransform() -{ - return gfx::OVERLAY_TRANSFORM_NONE; -} - -void DisplayGLOutputSurface::swapFrame() -{ - QMutexLocker locker(&m_mutex); - if (m_readyToUpdate) { - std::swap(m_middleBuffer, m_frontBuffer); - m_taskRunner->PostTask(FROM_HERE, - base::BindOnce(&DisplayGLOutputSurface::swapBuffersOnVizThread, - base::Unretained(this))); - m_taskRunner.reset(); - m_readyToUpdate = false; - } -} - -void DisplayGLOutputSurface::waitForTexture() -{ - if (m_frontBuffer && m_frontBuffer->fence) { - m_frontBuffer->fence->wait(); - m_frontBuffer->fence.reset(); - } -} - -int DisplayGLOutputSurface::textureId() -{ - return m_frontBuffer ? m_frontBuffer->serviceId : 0; -} - -QSize DisplayGLOutputSurface::size() -{ - return m_frontBuffer ? toQt(m_frontBuffer->shape.sizeInPixels) : QSize(); -} - -bool DisplayGLOutputSurface::hasAlphaChannel() -{ - return m_frontBuffer ? m_frontBuffer->shape.hasAlpha : false; -} - -float DisplayGLOutputSurface::devicePixelRatio() -{ - return m_frontBuffer ? m_frontBuffer->shape.devicePixelRatio : 1; -} - -} // namespace QtWebEngineCore |