зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
4.2 KiB
C++
126 строки
4.2 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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#include "RenderMacIOSurfaceTextureHostOGL.h"
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#include "GLContextCGL.h"
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#include "mozilla/gfx/Logging.h"
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#include "ScopedGLHelpers.h"
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namespace mozilla {
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namespace wr {
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static CGLError
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CreateTextureForPlane(uint8_t aPlaneID, gl::GLContext* aGL, MacIOSurface* aSurface, GLuint* aTexture)
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{
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MOZ_ASSERT(aGL && aSurface && aTexture);
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aGL->fGenTextures(1, aTexture);
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aGL->fActiveTexture(LOCAL_GL_TEXTURE0);
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aGL->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, *aTexture);
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aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
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aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
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CGLError result = kCGLNoError;
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gfx::SurfaceFormat readFormat = gfx::SurfaceFormat::UNKNOWN;
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result = aSurface->CGLTexImageIOSurface2D(aGL,
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gl::GLContextCGL::Cast(aGL)->GetCGLContext(),
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aPlaneID,
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&readFormat);
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// If this is a yuv format, the Webrender only supports YUV422 interleaving format.
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MOZ_ASSERT(aSurface->GetFormat() != gfx::SurfaceFormat::YUV422 || readFormat == gfx::SurfaceFormat::YUV422);
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return result;
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}
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RenderMacIOSurfaceTextureHostOGL::RenderMacIOSurfaceTextureHostOGL(MacIOSurface* aSurface)
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: mSurface(aSurface)
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, mTextureHandles{ 0, 0, 0 }
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{
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MOZ_COUNT_CTOR_INHERITED(RenderMacIOSurfaceTextureHostOGL, RenderTextureHostOGL);
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}
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RenderMacIOSurfaceTextureHostOGL::~RenderMacIOSurfaceTextureHostOGL()
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{
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MOZ_COUNT_DTOR_INHERITED(RenderMacIOSurfaceTextureHostOGL, RenderTextureHostOGL);
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DeleteTextureHandle();
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}
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GLuint
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RenderMacIOSurfaceTextureHostOGL::GetGLHandle(uint8_t aChannelIndex) const
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{
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MOZ_ASSERT(mSurface);
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MOZ_ASSERT((mSurface->GetPlaneCount() == 0) ? (aChannelIndex == mSurface->GetPlaneCount())
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: (aChannelIndex < mSurface->GetPlaneCount()));
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return mTextureHandles[aChannelIndex];
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}
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gfx::IntSize
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RenderMacIOSurfaceTextureHostOGL::GetSize(uint8_t aChannelIndex) const
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{
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MOZ_ASSERT(mSurface);
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MOZ_ASSERT((mSurface->GetPlaneCount() == 0) ? (aChannelIndex == mSurface->GetPlaneCount())
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: (aChannelIndex < mSurface->GetPlaneCount()));
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if (!mSurface) {
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return gfx::IntSize();
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}
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return gfx::IntSize(mSurface->GetDevicePixelWidth(aChannelIndex),
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mSurface->GetDevicePixelHeight(aChannelIndex));
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}
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wr::WrExternalImage
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RenderMacIOSurfaceTextureHostOGL::Lock(uint8_t aChannelIndex, gl::GLContext* aGL)
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{
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if (mGL.get() != aGL) {
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// release the texture handle in the previous gl context
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DeleteTextureHandle();
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mGL = aGL;
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mGL->MakeCurrent();
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}
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if (!mSurface || !mGL || !mGL->MakeCurrent()) {
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return NativeTextureToWrExternalImage(0, 0, 0, 0, 0);
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}
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if (!mTextureHandles[0]) {
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MOZ_ASSERT(gl::GLContextCGL::Cast(mGL.get())->GetCGLContext());
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// The result of GetPlaneCount() is 0 for single plane format, but it will
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// be 2 if the format has 2 planar data.
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CreateTextureForPlane(0, mGL, mSurface, &(mTextureHandles[0]));
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for (size_t i = 1; i < mSurface->GetPlaneCount(); ++i) {
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CreateTextureForPlane(i, mGL, mSurface, &(mTextureHandles[i]));
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}
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}
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gfx::IntSize size = GetSize(aChannelIndex);
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return NativeTextureToWrExternalImage(GetGLHandle(aChannelIndex), 0, 0,
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size.width, size.height);
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}
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void
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RenderMacIOSurfaceTextureHostOGL::Unlock()
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{
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}
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void
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RenderMacIOSurfaceTextureHostOGL::DeleteTextureHandle()
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{
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if (mTextureHandles[0] != 0 && mGL && mGL->MakeCurrent()) {
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// Calling glDeleteTextures on 0 isn't an error. So, just make them a single
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// call.
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mGL->fDeleteTextures(3, mTextureHandles);
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for (size_t i = 0; i < 3; ++i) {
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mTextureHandles[i] = 0;
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}
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}
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}
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} // namespace wr
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} // namespace mozilla
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