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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/webgpu/CanvasContext.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/webgpu/CanvasContext.h')
-rw-r--r--dom/webgpu/CanvasContext.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/dom/webgpu/CanvasContext.h b/dom/webgpu/CanvasContext.h
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+/* -*- Mode: C++; tab-width: 4; 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/. */
+
+#ifndef GPU_CanvasContext_H_
+#define GPU_CanvasContext_H_
+
+#include "nsICanvasRenderingContextInternal.h"
+#include "nsWrapperCache.h"
+#include "ObjectModel.h"
+#include "mozilla/layers/LayersTypes.h"
+#include "mozilla/webrender/WebRenderAPI.h"
+
+namespace mozilla {
+namespace dom {
+class OwningHTMLCanvasElementOrOffscreenCanvas;
+class Promise;
+struct GPUCanvasConfiguration;
+enum class GPUTextureFormat : uint8_t;
+} // namespace dom
+namespace webgpu {
+class Adapter;
+class Texture;
+
+class CanvasContext final : public nsICanvasRenderingContextInternal,
+ public nsWrapperCache {
+ private:
+ virtual ~CanvasContext();
+ void Cleanup();
+
+ public:
+ // nsISupports interface + CC
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(CanvasContext)
+
+ CanvasContext();
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ public: // nsICanvasRenderingContextInternal
+ int32_t GetWidth() override { return mCanvasSize.width; }
+ int32_t GetHeight() override { return mCanvasSize.height; }
+
+ NS_IMETHOD SetDimensions(int32_t aWidth, int32_t aHeight) override;
+ NS_IMETHOD InitializeWithDrawTarget(
+ nsIDocShell* aShell, NotNull<gfx::DrawTarget*> aTarget) override {
+ return NS_OK;
+ }
+
+ bool UpdateWebRenderCanvasData(mozilla::nsDisplayListBuilder* aBuilder,
+ WebRenderCanvasData* aCanvasData) override;
+
+ bool InitializeCanvasRenderer(nsDisplayListBuilder* aBuilder,
+ layers::CanvasRenderer* aRenderer) override;
+ mozilla::UniquePtr<uint8_t[]> GetImageBuffer(
+ int32_t* out_format, gfx::IntSize* out_imageSize) override;
+ NS_IMETHOD GetInputStream(const char* aMimeType,
+ const nsAString& aEncoderOptions,
+ nsIInputStream** aStream) override;
+ already_AddRefed<mozilla::gfx::SourceSurface> GetSurfaceSnapshot(
+ gfxAlphaType* aOutAlphaType) override;
+
+ void SetOpaqueValueFromOpaqueAttr(bool aOpaqueAttrValue) override {}
+ bool GetIsOpaque() override { return true; }
+
+ void ResetBitmap() override { Unconfigure(); }
+
+ void MarkContextClean() override {}
+
+ NS_IMETHOD Redraw(const gfxRect& aDirty) override { return NS_OK; }
+
+ void DidRefresh() override {}
+
+ void MarkContextCleanForFrameCapture() override {}
+ Watchable<FrameCaptureState>* GetFrameCaptureState() override {
+ return nullptr;
+ }
+
+ Maybe<layers::SurfaceDescriptor> GetFrontBuffer(WebGLFramebufferJS*,
+ const bool) override;
+
+ already_AddRefed<layers::FwdTransactionTracker> UseCompositableForwarder(
+ layers::CompositableForwarder* aForwarder) override;
+
+ public:
+ void GetCanvas(dom::OwningHTMLCanvasElementOrOffscreenCanvas&) const;
+
+ void Configure(const dom::GPUCanvasConfiguration& aConfig);
+ void Unconfigure();
+
+ RefPtr<Texture> GetCurrentTexture(ErrorResult& aRv);
+ void MaybeQueueSwapChainPresent();
+ Maybe<layers::SurfaceDescriptor> SwapChainPresent();
+ void ForceNewFrame();
+ void InvalidateCanvasContent();
+
+ private:
+ gfx::IntSize mCanvasSize;
+ std::unique_ptr<dom::GPUCanvasConfiguration> mConfig;
+ bool mPendingSwapChainPresent = false;
+ bool mWaitingCanvasRendererInitialized = false;
+
+ RefPtr<WebGPUChild> mBridge;
+ RefPtr<Texture> mTexture;
+ gfx::SurfaceFormat mGfxFormat = gfx::SurfaceFormat::R8G8B8A8;
+
+ Maybe<layers::RemoteTextureId> mLastRemoteTextureId;
+ Maybe<layers::RemoteTextureOwnerId> mRemoteTextureOwnerId;
+ RefPtr<layers::FwdTransactionTracker> mFwdTransactionTracker;
+ bool mUseExternalTextureInSwapChain = false;
+ bool mNewTextureRequested = false;
+};
+
+} // namespace webgpu
+} // namespace mozilla
+
+#endif // GPU_CanvasContext_H_