зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
3.2 KiB
C++
116 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 "MacIOSurfaceTextureHostOGL.h"
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#include "mozilla/gfx/MacIOSurface.h"
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#include "GLContextCGL.h"
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namespace mozilla {
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namespace layers {
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MacIOSurfaceTextureHostOGL::MacIOSurfaceTextureHostOGL(TextureFlags aFlags,
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const SurfaceDescriptorMacIOSurface& aDescriptor)
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: TextureHost(aFlags)
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{
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mSurface = MacIOSurface::LookupSurface(aDescriptor.surface(),
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aDescriptor.scaleFactor(),
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!aDescriptor.isOpaque());
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}
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bool
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MacIOSurfaceTextureHostOGL::Lock()
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{
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if (!mCompositor || !mSurface) {
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return false;
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}
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if (!mTextureSource) {
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mTextureSource = new MacIOSurfaceTextureSourceOGL(mCompositor, mSurface);
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}
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return true;
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}
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void
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MacIOSurfaceTextureHostOGL::SetCompositor(Compositor* aCompositor)
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{
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CompositorOGL* glCompositor = static_cast<CompositorOGL*>(aCompositor);
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mCompositor = glCompositor;
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if (mTextureSource) {
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mTextureSource->SetCompositor(glCompositor);
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}
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}
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gfx::SurfaceFormat
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MacIOSurfaceTextureHostOGL::GetFormat() const {
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if (!mSurface) {
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return gfx::SurfaceFormat::UNKNOWN;
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}
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return mSurface->HasAlpha() ? gfx::SurfaceFormat::R8G8B8A8
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: gfx::SurfaceFormat::R8G8B8X8;
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}
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gfx::IntSize
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MacIOSurfaceTextureHostOGL::GetSize() const {
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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(),
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mSurface->GetDevicePixelHeight());
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}
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MacIOSurfaceTextureSourceOGL::MacIOSurfaceTextureSourceOGL(
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CompositorOGL* aCompositor,
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MacIOSurface* aSurface)
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: mCompositor(aCompositor)
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, mSurface(aSurface)
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{}
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MacIOSurfaceTextureSourceOGL::~MacIOSurfaceTextureSourceOGL()
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{}
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gfx::IntSize
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MacIOSurfaceTextureSourceOGL::GetSize() const
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{
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return gfx::IntSize(mSurface->GetDevicePixelWidth(),
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mSurface->GetDevicePixelHeight());
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}
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gfx::SurfaceFormat
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MacIOSurfaceTextureSourceOGL::GetFormat() const
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{
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return mSurface->HasAlpha() ? gfx::SurfaceFormat::R8G8B8A8
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: gfx::SurfaceFormat::R8G8B8X8;
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}
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void
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MacIOSurfaceTextureSourceOGL::BindTexture(GLenum aTextureUnit, gfx::Filter aFilter)
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{
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if (!gl()) {
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NS_WARNING("Trying to bind a texture without a GLContext");
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return;
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}
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GLuint tex = mCompositor->GetTemporaryTexture(GetTextureTarget(), aTextureUnit);
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gl()->fActiveTexture(aTextureUnit);
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gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, tex);
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mSurface->CGLTexImageIOSurface2D(gl::GLContextCGL::Cast(gl())->GetCGLContext());
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ApplyFilterToBoundTexture(gl(), aFilter, LOCAL_GL_TEXTURE_RECTANGLE_ARB);
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}
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void
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MacIOSurfaceTextureSourceOGL::SetCompositor(Compositor* aCompositor)
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{
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mCompositor = static_cast<CompositorOGL*>(aCompositor);
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}
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gl::GLContext*
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MacIOSurfaceTextureSourceOGL::gl() const
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{
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return mCompositor ? mCompositor->gl() : nullptr;
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}
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}
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}
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