gecko-dev/gfx/webrender_bindings/WebRenderAPI.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WebRenderAPI.h"
#include "mozilla/webrender/RendererOGL.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/widget/CompositorWidget.h"
#include "mozilla/widget/CompositorWidget.h"
#include "mozilla/layers/SynchronousTask.h"
namespace mozilla {
namespace wr {
class NewRenderer : public RendererEvent
{
public:
NewRenderer(WrAPI** aApi, layers::CompositorBridgeParentBase* aBridge,
GLint* aMaxTextureSize,
bool* aUseANGLE,
RefPtr<widget::CompositorWidget>&& aWidget,
layers::SynchronousTask* aTask,
bool aEnableProfiler,
LayoutDeviceIntSize aSize)
: mWrApi(aApi)
, mMaxTextureSize(aMaxTextureSize)
, mUseANGLE(aUseANGLE)
, mBridge(aBridge)
, mCompositorWidget(Move(aWidget))
, mTask(aTask)
, mEnableProfiler(aEnableProfiler)
, mSize(aSize)
{
MOZ_COUNT_CTOR(NewRenderer);
}
~NewRenderer()
{
MOZ_COUNT_DTOR(NewRenderer);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
layers::AutoCompleteTask complete(mTask);
RefPtr<gl::GLContext> gl;
if (gfx::gfxVars::UseWebRenderANGLE()) {
gl = gl::GLContextProviderEGL::CreateForCompositorWidget(mCompositorWidget, true);
if (!gl || !gl->IsANGLE()) {
gfxCriticalNote << "Failed ANGLE GL context creation for WebRender: " << gfx::hexa(gl.get());
return;
}
}
if (!gl) {
gl = gl::GLContextProvider::CreateForCompositorWidget(mCompositorWidget, true);
}
if (!gl || !gl->MakeCurrent()) {
gfxCriticalNote << "Failed GL context creation for WebRender: " << gfx::hexa(gl.get());
return;
}
gl->fGetIntegerv(LOCAL_GL_MAX_TEXTURE_SIZE, mMaxTextureSize);
*mUseANGLE = gl->IsANGLE();
WrRenderer* wrRenderer = nullptr;
if (!wr_window_new(aWindowId, mSize.width, mSize.height, gl.get(),
this->mEnableProfiler, mWrApi, &wrRenderer)) {
// wr_window_new puts a message into gfxCriticalNote if it returns false
return;
}
MOZ_ASSERT(wrRenderer);
RefPtr<RenderThread> thread = &aRenderThread;
auto renderer = MakeUnique<RendererOGL>(Move(thread),
Move(gl),
Move(mCompositorWidget),
aWindowId,
wrRenderer,
mBridge);
if (wrRenderer && renderer) {
WrExternalImageHandler handler = renderer->GetExternalImageHandler();
wr_renderer_set_external_image_handler(wrRenderer, &handler);
}
aRenderThread.AddRenderer(aWindowId, Move(renderer));
}
private:
WrAPI** mWrApi;
GLint* mMaxTextureSize;
bool* mUseANGLE;
layers::CompositorBridgeParentBase* mBridge;
RefPtr<widget::CompositorWidget> mCompositorWidget;
layers::SynchronousTask* mTask;
bool mEnableProfiler;
LayoutDeviceIntSize mSize;
};
class RemoveRenderer : public RendererEvent
{
public:
explicit RemoveRenderer(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(RemoveRenderer);
}
~RemoveRenderer()
{
MOZ_COUNT_DTOR(RemoveRenderer);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.RemoveRenderer(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
private:
layers::SynchronousTask* mTask;
};
//static
already_AddRefed<WebRenderAPI>
WebRenderAPI::Create(bool aEnableProfiler,
layers::CompositorBridgeParentBase* aBridge,
RefPtr<widget::CompositorWidget>&& aWidget,
LayoutDeviceIntSize aSize)
{
MOZ_ASSERT(aBridge);
MOZ_ASSERT(aWidget);
static uint64_t sNextId = 1;
auto id = NewWindowId(sNextId++);
WrAPI* wrApi = nullptr;
GLint maxTextureSize = 0;
bool useANGLE = false;
// Dispatch a synchronous task because the WrApi object needs to be created
// on the render thread. If need be we could delay waiting on this task until
// the next time we need to access the WrApi object.
layers::SynchronousTask task("Create Renderer");
auto event = MakeUnique<NewRenderer>(&wrApi, aBridge, &maxTextureSize, &useANGLE,
Move(aWidget), &task, aEnableProfiler, aSize);
RenderThread::Get()->RunEvent(id, Move(event));
task.Wait();
if (!wrApi) {
return nullptr;
}
return RefPtr<WebRenderAPI>(new WebRenderAPI(wrApi, id, maxTextureSize, useANGLE)).forget();
}
WrIdNamespace
WebRenderAPI::GetNamespace() {
return wr_api_get_namespace(mWrApi);
}
WebRenderAPI::~WebRenderAPI()
{
layers::SynchronousTask task("Destroy WebRenderAPI");
auto event = MakeUnique<RemoveRenderer>(&task);
RunOnRenderThread(Move(event));
task.Wait();
wr_api_delete(mWrApi);
}
void
WebRenderAPI::GenerateFrame()
{
wr_api_generate_frame(mWrApi);
}
void
WebRenderAPI::SetRootDisplayList(gfx::Color aBgColor,
Epoch aEpoch,
LayerSize aViewportSize,
WrPipelineId pipeline_id,
WrBuiltDisplayListDescriptor dl_descriptor,
uint8_t *dl_data,
size_t dl_size,
WrAuxiliaryListsDescriptor aux_descriptor,
uint8_t *aux_data,
size_t aux_size)
{
wr_api_set_root_display_list(mWrApi,
aEpoch,
aViewportSize.width, aViewportSize.height,
pipeline_id,
dl_descriptor,
dl_data,
dl_size,
aux_descriptor,
aux_data,
aux_size);
}
void
WebRenderAPI::ClearRootDisplayList(Epoch aEpoch,
WrPipelineId pipeline_id)
{
wr_api_clear_root_display_list(mWrApi, aEpoch, pipeline_id);
}
void
WebRenderAPI::SetWindowParameters(LayoutDeviceIntSize size)
{
wr_api_set_window_parameters(mWrApi, size.width, size.height);
}
void
WebRenderAPI::Readback(gfx::IntSize size,
uint8_t *buffer,
uint32_t buffer_size)
{
class Readback : public RendererEvent
{
public:
explicit Readback(layers::SynchronousTask* aTask,
gfx::IntSize aSize, uint8_t *aBuffer, uint32_t aBufferSize)
: mTask(aTask)
, mSize(aSize)
, mBuffer(aBuffer)
, mBufferSize(aBufferSize)
{
MOZ_COUNT_CTOR(Readback);
}
~Readback()
{
MOZ_COUNT_DTOR(Readback);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.UpdateAndRender(aWindowId);
wr_renderer_readback(aRenderThread.GetRenderer(aWindowId)->GetWrRenderer(),
mSize.width, mSize.height, mBuffer, mBufferSize);
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
gfx::IntSize mSize;
uint8_t *mBuffer;
uint32_t mBufferSize;
};
layers::SynchronousTask task("Readback");
auto event = MakeUnique<Readback>(&task, size, buffer, buffer_size);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this
// read-back event. Then, we could make sure this read-back event gets the
// latest result.
RunOnRenderThread(Move(event));
task.Wait();
}
void
WebRenderAPI::Pause()
{
class PauseEvent : public RendererEvent
{
public:
explicit PauseEvent(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(PauseEvent);
}
~PauseEvent()
{
MOZ_COUNT_DTOR(PauseEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
aRenderThread.Pause(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
};
layers::SynchronousTask task("Pause");
auto event = MakeUnique<PauseEvent>(&task);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(Move(event));
task.Wait();
}
bool
WebRenderAPI::Resume()
{
class ResumeEvent : public RendererEvent
{
public:
explicit ResumeEvent(layers::SynchronousTask* aTask, bool* aResult)
: mTask(aTask)
, mResult(aResult)
{
MOZ_COUNT_CTOR(ResumeEvent);
}
~ResumeEvent()
{
MOZ_COUNT_DTOR(ResumeEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
*mResult = aRenderThread.Resume(aWindowId);
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
bool* mResult;
};
bool result = false;
layers::SynchronousTask task("Resume");
auto event = MakeUnique<ResumeEvent>(&task, &result);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(Move(event));
task.Wait();
return result;
}
void
WebRenderAPI::WaitFlushed()
{
class WaitFlushedEvent : public RendererEvent
{
public:
explicit WaitFlushedEvent(layers::SynchronousTask* aTask)
: mTask(aTask)
{
MOZ_COUNT_CTOR(WaitFlushedEvent);
}
~WaitFlushedEvent()
{
MOZ_COUNT_DTOR(WaitFlushedEvent);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
layers::AutoCompleteTask complete(mTask);
}
layers::SynchronousTask* mTask;
};
layers::SynchronousTask task("WaitFlushed");
auto event = MakeUnique<WaitFlushedEvent>(&task);
// This event will be passed from wr_backend thread to renderer thread. That
// implies that all frame data have been processed when the renderer runs this event.
RunOnRenderThread(Move(event));
task.Wait();
}
void
WebRenderAPI::SetRootPipeline(PipelineId aPipeline)
{
wr_api_set_root_pipeline(mWrApi, aPipeline);
}
void
WebRenderAPI::AddImage(ImageKey key, const ImageDescriptor& aDescriptor,
Range<uint8_t> aBytes)
{
wr_api_add_image(mWrApi,
key,
&aDescriptor,
RangeToByteSlice(aBytes));
}
void
WebRenderAPI::AddBlobImage(ImageKey key, const ImageDescriptor& aDescriptor,
Range<uint8_t> aBytes)
{
wr_api_add_blob_image(mWrApi,
key,
&aDescriptor,
RangeToByteSlice(aBytes));
}
void
WebRenderAPI::AddExternalImageHandle(ImageKey key,
const ImageDescriptor& aDescriptor,
uint64_t aHandle)
{
wr_api_add_external_image_handle(mWrApi,
key,
&aDescriptor,
aHandle);
}
void
WebRenderAPI::AddExternalImageBuffer(ImageKey key,
const ImageDescriptor& aDescriptor,
uint64_t aHandle)
{
wr_api_add_external_image_buffer(mWrApi,
key,
&aDescriptor,
aHandle);
}
void
WebRenderAPI::UpdateImageBuffer(ImageKey aKey,
const ImageDescriptor& aDescriptor,
Range<uint8_t> aBytes)
{
wr_api_update_image(mWrApi,
aKey,
&aDescriptor,
RangeToByteSlice(aBytes));
}
void
WebRenderAPI::DeleteImage(ImageKey aKey)
{
wr_api_delete_image(mWrApi, aKey);
}
void
WebRenderAPI::AddRawFont(wr::FontKey key, Range<uint8_t> aBytes)
{
wr_api_add_raw_font(mWrApi, key, &aBytes[0], aBytes.length());
}
void
WebRenderAPI::DeleteFont(wr::FontKey aKey)
{
printf("XXX - WebRender does not seem to implement deleting a font! Leaking it...\n");
}
class EnableProfiler : public RendererEvent
{
public:
explicit EnableProfiler(bool aEnabled)
: mEnabled(aEnabled)
{
MOZ_COUNT_CTOR(EnableProfiler);
}
~EnableProfiler()
{
MOZ_COUNT_DTOR(EnableProfiler);
}
virtual void Run(RenderThread& aRenderThread, WindowId aWindowId) override
{
auto renderer = aRenderThread.GetRenderer(aWindowId);
if (renderer) {
renderer->SetProfilerEnabled(mEnabled);
}
}
private:
bool mEnabled;
};
void
WebRenderAPI::SetProfilerEnabled(bool aEnabled)
{
auto event = MakeUnique<EnableProfiler>(aEnabled);
RunOnRenderThread(Move(event));
}
void
WebRenderAPI::RunOnRenderThread(UniquePtr<RendererEvent> aEvent)
{
auto event = reinterpret_cast<uintptr_t>(aEvent.release());
wr_api_send_external_event(mWrApi, event);
}
DisplayListBuilder::DisplayListBuilder(PipelineId aId)
{
MOZ_COUNT_CTOR(DisplayListBuilder);
mWrState = wr_state_new(aId);
}
DisplayListBuilder::~DisplayListBuilder()
{
MOZ_COUNT_DTOR(DisplayListBuilder);
wr_state_delete(mWrState);
}
void
DisplayListBuilder::Begin(const LayerIntSize& aSize)
{
wr_dp_begin(mWrState, aSize.width, aSize.height);
}
void
DisplayListBuilder::End()
{
wr_dp_end(mWrState);
}
BuiltDisplayList
DisplayListBuilder::Finalize()
{
BuiltDisplayList dl;
wr_api_finalize_builder(mWrState,
dl.dl_desc,
dl.dl.inner,
dl.aux_desc,
dl.aux.inner);
return dl;
}
void
DisplayListBuilder::PushStackingContext(const WrRect& aBounds,
const WrRect& aOverflow,
const WrImageMask* aMask,
const float aOpacity,
const gfx::Matrix4x4& aTransform,
const WrMixBlendMode& aMixBlendMode)
{
wr_dp_push_stacking_context(mWrState, aBounds, aOverflow, aMask, aOpacity,
&aTransform.components[0], aMixBlendMode);
}
void
DisplayListBuilder::PopStackingContext()
{
wr_dp_pop_stacking_context(mWrState);
}
void
DisplayListBuilder::PushBuiltDisplayList(BuiltDisplayList dl)
{
wr_dp_push_built_display_list(mWrState,
dl.dl_desc,
dl.dl.Extract(),
dl.aux_desc,
dl.aux.Extract());
}
void
DisplayListBuilder::PushScrollLayer(const WrRect& aBounds,
const WrRect& aOverflow,
const WrImageMask* aMask)
{
wr_dp_push_scroll_layer(mWrState, aBounds, aOverflow, aMask);
}
void
DisplayListBuilder::PopScrollLayer()
{
wr_dp_pop_scroll_layer(mWrState);
}
void
DisplayListBuilder::PushRect(const WrRect& aBounds,
const WrClipRegion& aClip,
const WrColor& aColor)
{
wr_dp_push_rect(mWrState, aBounds, aClip, aColor);
}
void
DisplayListBuilder::PushLinearGradient(const WrRect& aBounds,
const WrClipRegion& aClip,
const WrPoint& aStartPoint,
const WrPoint& aEndPoint,
const nsTArray<WrGradientStop>& aStops,
wr::GradientExtendMode aExtendMode)
{
wr_dp_push_linear_gradient(mWrState,
aBounds, aClip,
aStartPoint, aEndPoint,
aStops.Elements(), aStops.Length(),
aExtendMode);
}
void
DisplayListBuilder::PushRadialGradient(const WrRect& aBounds,
const WrClipRegion& aClip,
const WrPoint& aCenter,
const WrSize& aRadius,
const nsTArray<WrGradientStop>& aStops,
wr::GradientExtendMode aExtendMode)
{
wr_dp_push_radial_gradient(mWrState,
aBounds, aClip,
aCenter, aRadius,
aStops.Elements(), aStops.Length(),
aExtendMode);
}
void
DisplayListBuilder::PushImage(const WrRect& aBounds,
const WrClipRegion& aClip,
wr::ImageRendering aFilter,
wr::ImageKey aImage)
{
wr_dp_push_image(mWrState, aBounds, aClip, aFilter, aImage);
}
void
DisplayListBuilder::PushIFrame(const WrRect& aBounds,
const WrClipRegion& aClip,
PipelineId aPipeline)
{
wr_dp_push_iframe(mWrState, aBounds, aClip, aPipeline);
}
void
DisplayListBuilder::PushBorder(const WrRect& aBounds,
const WrClipRegion& aClip,
const WrBorderWidths& aWidths,
const WrBorderSide& aTop,
const WrBorderSide& aRight,
const WrBorderSide& aBottom,
const WrBorderSide& aLeft,
const WrBorderRadius& aRadius)
{
wr_dp_push_border(mWrState, aBounds, aClip,
aWidths, aTop, aRight, aBottom, aLeft, aRadius);
}
void
DisplayListBuilder::PushBorderImage(const WrRect& aBounds,
const WrClipRegion& aClip,
const WrBorderWidths& aWidths,
wr::ImageKey aImage,
const WrNinePatchDescriptor& aPatch,
const WrSideOffsets2Df32& aOutset,
const WrRepeatMode& aRepeatHorizontal,
const WrRepeatMode& aRepeatVertical)
{
wr_dp_push_border_image(mWrState, aBounds, aClip,
aWidths, aImage, aPatch, aOutset,
aRepeatHorizontal, aRepeatVertical);
}
void
DisplayListBuilder::PushText(const WrRect& aBounds,
const WrClipRegion& aClip,
const gfx::Color& aColor,
wr::FontKey aFontKey,
Range<const WrGlyphInstance> aGlyphBuffer,
float aGlyphSize)
{
wr_dp_push_text(mWrState, aBounds, aClip,
ToWrColor(aColor),
aFontKey,
&aGlyphBuffer[0], aGlyphBuffer.length(),
aGlyphSize);
}
void
DisplayListBuilder::PushBoxShadow(const WrRect& aRect,
const WrClipRegion& aClip,
const WrRect& aBoxBounds,
const WrPoint& aOffset,
const WrColor& aColor,
const float& aBlurRadius,
const float& aSpreadRadius,
const float& aBorderRadius,
const WrBoxShadowClipMode& aClipMode)
{
wr_dp_push_box_shadow(mWrState, aRect, aClip,
aBoxBounds, aOffset, aColor,
aBlurRadius, aSpreadRadius, aBorderRadius,
aClipMode);
}
WrClipRegion
DisplayListBuilder::BuildClipRegion(const WrRect& aMain,
const WrImageMask* aMask)
{
return wr_dp_new_clip_region(mWrState,
aMain,
nullptr, 0,
aMask);
}
WrClipRegion
DisplayListBuilder::BuildClipRegion(const WrRect& aMain,
const nsTArray<WrComplexClipRegion>& aComplex,
const WrImageMask* aMask)
{
return wr_dp_new_clip_region(mWrState,
aMain,
aComplex.Elements(), aComplex.Length(),
aMask);
}
} // namespace wr
} // namespace mozilla