зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
3.2 KiB
C++
105 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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#include "RenderAndroidSurfaceTextureHostOGL.h"
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#include "mozilla/gfx/Logging.h"
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namespace mozilla {
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namespace wr {
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RenderAndroidSurfaceTextureHostOGL::RenderAndroidSurfaceTextureHostOGL(
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const java::GeckoSurfaceTexture::GlobalRef& aSurfTex, gfx::IntSize aSize,
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gfx::SurfaceFormat aFormat, bool aContinuousUpdate)
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: mSurfTex(aSurfTex), mSize(aSize) {
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MOZ_COUNT_CTOR_INHERITED(RenderAndroidSurfaceTextureHostOGL,
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RenderTextureHostOGL);
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if (mSurfTex) {
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mSurfTex->IncrementUse();
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}
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}
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RenderAndroidSurfaceTextureHostOGL::~RenderAndroidSurfaceTextureHostOGL() {
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MOZ_COUNT_DTOR_INHERITED(RenderAndroidSurfaceTextureHostOGL,
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RenderTextureHostOGL);
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DeleteTextureHandle();
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if (mSurfTex) {
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mSurfTex->DecrementUse();
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}
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}
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GLuint RenderAndroidSurfaceTextureHostOGL::GetGLHandle(
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uint8_t aChannelIndex) const {
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if (!mSurfTex) {
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return 0;
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}
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return mSurfTex->GetTexName();
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}
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gfx::IntSize RenderAndroidSurfaceTextureHostOGL::GetSize(
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uint8_t aChannelIndex) const {
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return mSize;
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}
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wr::WrExternalImage RenderAndroidSurfaceTextureHostOGL::Lock(
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uint8_t aChannelIndex, gl::GLContext* aGL, wr::ImageRendering aRendering) {
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MOZ_ASSERT(aChannelIndex == 0);
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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 (!mSurfTex || !mGL || !mGL->MakeCurrent()) {
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return InvalidToWrExternalImage();
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}
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if (!mSurfTex->IsAttachedToGLContext((int64_t)mGL.get())) {
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GLuint texName;
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mGL->fGenTextures(1, &texName);
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// Cache rendering filter.
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mCachedRendering = aRendering;
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ActivateBindAndTexParameteri(mGL, LOCAL_GL_TEXTURE0,
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LOCAL_GL_TEXTURE_EXTERNAL_OES, texName,
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aRendering);
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if (NS_FAILED(mSurfTex->AttachToGLContext((int64_t)mGL.get(), texName))) {
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MOZ_ASSERT(0);
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mGL->fDeleteTextures(1, &texName);
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return InvalidToWrExternalImage();
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;
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}
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} else if (IsFilterUpdateNecessary(aRendering)) {
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// Cache new rendering filter.
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mCachedRendering = aRendering;
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ActivateBindAndTexParameteri(mGL, LOCAL_GL_TEXTURE0,
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LOCAL_GL_TEXTURE_EXTERNAL_OES,
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mSurfTex->GetTexName(), aRendering);
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}
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// XXX Call UpdateTexImage() only when it is necessary.
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// For now, alyways call UpdateTexImage().
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// if (mContinuousUpdate) {
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mSurfTex->UpdateTexImage();
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//}
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return NativeTextureToWrExternalImage(mSurfTex->GetTexName(), 0, 0,
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mSize.width, mSize.height);
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}
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void RenderAndroidSurfaceTextureHostOGL::Unlock() {}
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void RenderAndroidSurfaceTextureHostOGL::DeleteTextureHandle() {
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// XXX Do we need to call mSurfTex->DetachFromGLContext() here?
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// But Surface texture is shared among many SurfaceTextureHosts.
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}
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} // namespace wr
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} // namespace mozilla
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