зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
3.2 KiB
C++
111 строки
3.2 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 WaylandDMABufSurface_h__
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#define WaylandDMABufSurface_h__
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#include <stdint.h>
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#include "mozilla/widget/nsWaylandDisplay.h"
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typedef void* EGLImageKHR;
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typedef void* EGLSyncKHR;
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#define DMABUF_BUFFER_PLANES 4
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namespace mozilla {
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namespace layers {
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class SurfaceDescriptor;
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}
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} // namespace mozilla
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typedef enum {
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// Use alpha pixel format
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DMABUF_ALPHA = 1 << 0,
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// Surface is used as texture and may be also shared
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DMABUF_TEXTURE = 1 << 1,
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// Automatically create wl_buffer / EGLImage in Create routines.
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DMABUF_CREATE_WL_BUFFER = 1 << 2,
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} WaylandDMABufSurfaceFlags;
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// TODO - create as ref-counted?
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class WaylandDMABufSurface {
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public:
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bool Create(int aWidth, int aHeight, int aWaylandDMABufSurfaceFlags);
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bool Create(const mozilla::layers::SurfaceDescriptor& aDesc);
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bool Serialize(mozilla::layers::SurfaceDescriptor& aOutDescriptor);
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bool Resize(int aWidth, int aHeight);
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void Release();
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void Clear();
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bool CopyFrom(class WaylandDMABufSurface* aSourceSurface);
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int GetWidth() { return mWidth; };
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int GetHeight() { return mHeight; };
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mozilla::gfx::SurfaceFormat GetFormat();
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bool HasAlpha();
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void* MapReadOnly(uint32_t aX, uint32_t aY, uint32_t aWidth, uint32_t aHeight,
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uint32_t* aStride = nullptr);
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void* MapReadOnly(uint32_t* aStride = nullptr);
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void* Map(uint32_t aX, uint32_t aY, uint32_t aWidth, uint32_t aHeight,
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uint32_t* aStride = nullptr);
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void* Map(uint32_t* aStride = nullptr);
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void* GetMappedRegion() { return mMappedRegion; };
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uint32_t GetMappedRegionStride() { return mMappedRegionStride; };
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bool IsMapped() { return (mMappedRegion != nullptr); };
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void Unmap();
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bool IsEGLSupported(mozilla::gl::GLContext* aGLContext);
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bool CreateEGLImage(mozilla::gl::GLContext* aGLContext);
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void ReleaseEGLImage(mozilla::gl::GLContext* aGLContext);
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EGLImageKHR GetEGLImage() { return mEGLImage; };
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void SetWLBuffer(struct wl_buffer* aWLBuffer);
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wl_buffer* GetWLBuffer();
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void WLBufferDetach() { mWLBufferAttached = false; };
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bool WLBufferIsAttached() { return mWLBufferAttached; };
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void WLBufferSetAttached() { mWLBufferAttached = true; };
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WaylandDMABufSurface();
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~WaylandDMABufSurface();
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private:
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bool CreateWLBuffer();
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void FillFdData(struct gbm_import_fd_data& aData);
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void ImportSurfaceDescriptor(const mozilla::layers::SurfaceDescriptor& aDesc);
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private:
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int mSurfaceFlags;
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int mWidth;
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int mHeight;
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mozilla::widget::GbmFormat* mGmbFormat;
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wl_buffer* mWLBuffer;
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void* mMappedRegion;
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uint32_t mMappedRegionStride;
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struct gbm_bo* mGbmBufferObject;
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uint64_t mBufferModifier;
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int mBufferPlaneCount;
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int mDmabufFds[DMABUF_BUFFER_PLANES];
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uint32_t mStrides[DMABUF_BUFFER_PLANES];
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uint32_t mOffsets[DMABUF_BUFFER_PLANES];
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uint32_t mGbmBufferFlags;
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EGLImageKHR mEGLImage;
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GLuint mGLFbo;
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bool mWLBufferAttached;
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bool mFastWLBufferCreation;
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};
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#endif
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