зеркало из https://github.com/mozilla/gecko-dev.git
89 строки
2.5 KiB
C++
89 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H
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#define MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H
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#include "GLTypes.h"
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#include "RenderTextureHost.h"
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namespace mozilla {
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namespace wr {
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class RenderTextureHostSWGL : public RenderTextureHost {
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public:
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RenderTextureHostSWGL() {}
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wr::WrExternalImage LockSWGL(uint8_t aChannelIndex, void* aContext,
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RenderCompositor* aCompositor,
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wr::ImageRendering aRendering) override;
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void UnlockSWGL() override;
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RenderTextureHostSWGL* AsRenderTextureHostSWGL() override { return this; }
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virtual size_t GetPlaneCount() const = 0;
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virtual gfx::SurfaceFormat GetFormat() const = 0;
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virtual gfx::ColorDepth GetColorDepth() const {
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return gfx::ColorDepth::COLOR_8;
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}
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virtual gfx::YUVRangedColorSpace GetYUVColorSpace() const {
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return gfx::YUVRangedColorSpace::Default;
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}
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struct PlaneInfo {
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explicit PlaneInfo(GLuint aTexture) : mTexture(aTexture) {}
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GLuint mTexture = 0;
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void* mData = nullptr;
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int32_t mStride = 0;
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gfx::IntSize mSize;
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};
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virtual bool MapPlane(RenderCompositor* aCompositor, uint8_t aChannelIndex,
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PlaneInfo& aPlaneInfo) = 0;
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virtual void UnmapPlanes() = 0;
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// Lock this texture host as an attached external image for a SWGL compositor
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// surface. See swgl_bindings.rs for a description of the resulting
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// WrSWGLCompositeSurfaceInfo. This is paired with a call to UnlockSWGL when
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// composition is done.
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bool LockSWGLCompositeSurface(void* aContext,
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wr::SWGLCompositeSurfaceInfo* aInfo);
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size_t BytesFromPlanes() {
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NS_ASSERTION(mPlanes.size(), "Can't compute bytes without any planes");
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size_t bytes = 0;
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for (auto& plane : mPlanes) {
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bytes += plane.mStride * plane.mSize.height;
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}
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return bytes;
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}
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protected:
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bool mLocked = false;
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void* mContext = nullptr;
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std::vector<PlaneInfo> mPlanes;
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bool SetContext(void* aContext);
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bool UpdatePlanes(RenderCompositor* aCompositor,
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wr::ImageRendering aRendering);
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void CleanupPlanes();
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virtual ~RenderTextureHostSWGL();
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};
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} // namespace wr
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} // namespace mozilla
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#endif // MOZILLA_GFX_RENDERTEXTUREHOSTSWGL_H
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