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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp')
-rw-r--r--gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp172
1 files changed, 172 insertions, 0 deletions
diff --git a/gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp b/gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp
new file mode 100644
index 000000000..05f8cf38f
--- /dev/null
+++ b/gfx/layers/opengl/MacIOSurfaceTextureHostOGL.cpp
@@ -0,0 +1,172 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MacIOSurfaceTextureHostOGL.h"
+#include "mozilla/gfx/MacIOSurface.h"
+#include "GLContextCGL.h"
+
+namespace mozilla {
+namespace layers {
+
+MacIOSurfaceTextureHostOGL::MacIOSurfaceTextureHostOGL(TextureFlags aFlags,
+ const SurfaceDescriptorMacIOSurface& aDescriptor)
+ : TextureHost(aFlags)
+{
+ MOZ_COUNT_CTOR(MacIOSurfaceTextureHostOGL);
+ mSurface = MacIOSurface::LookupSurface(aDescriptor.surfaceId(),
+ aDescriptor.scaleFactor(),
+ !aDescriptor.isOpaque());
+}
+
+MacIOSurfaceTextureHostOGL::~MacIOSurfaceTextureHostOGL()
+{
+ MOZ_COUNT_DTOR(MacIOSurfaceTextureHostOGL);
+}
+
+GLTextureSource*
+MacIOSurfaceTextureHostOGL::CreateTextureSourceForPlane(size_t aPlane)
+{
+ GLuint textureHandle;
+ gl::GLContext* gl = mCompositor->gl();
+ gl->fGenTextures(1, &textureHandle);
+ gl->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, textureHandle);
+ gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
+ gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
+
+ mSurface->CGLTexImageIOSurface2D(gl::GLContextCGL::Cast(gl)->GetCGLContext(), aPlane);
+
+ return new GLTextureSource(mCompositor, textureHandle, LOCAL_GL_TEXTURE_RECTANGLE_ARB,
+ gfx::IntSize(mSurface->GetDevicePixelWidth(aPlane),
+ mSurface->GetDevicePixelHeight(aPlane)),
+ // XXX: This isn't really correct (but isn't used), we should be using the
+ // format of the individual plane, not of the whole buffer.
+ mSurface->GetFormat());
+}
+
+bool
+MacIOSurfaceTextureHostOGL::Lock()
+{
+ if (!gl() || !gl()->MakeCurrent() || !mSurface) {
+ return false;
+ }
+
+ if (!mTextureSource) {
+ mTextureSource = CreateTextureSourceForPlane(0);
+
+ RefPtr<TextureSource> prev = mTextureSource;
+ for (size_t i = 1; i < mSurface->GetPlaneCount(); i++) {
+ RefPtr<TextureSource> next = CreateTextureSourceForPlane(i);
+ prev->SetNextSibling(next);
+ prev = next;
+ }
+ }
+ return true;
+}
+
+void
+MacIOSurfaceTextureHostOGL::SetCompositor(Compositor* aCompositor)
+{
+ CompositorOGL* glCompositor = AssertGLCompositor(aCompositor);
+ if (!glCompositor) {
+ mTextureSource = nullptr;
+ mCompositor = nullptr;
+ return;
+ }
+
+ if (mCompositor != glCompositor) {
+ // Cannot share GL texture identifiers across compositors.
+ mTextureSource = nullptr;
+ }
+ mCompositor = glCompositor;
+}
+
+gfx::SurfaceFormat
+MacIOSurfaceTextureHostOGL::GetFormat() const {
+ return mSurface->GetFormat();
+}
+
+gfx::SurfaceFormat
+MacIOSurfaceTextureHostOGL::GetReadFormat() const {
+ return mSurface->GetReadFormat();
+}
+
+gfx::IntSize
+MacIOSurfaceTextureHostOGL::GetSize() const {
+ if (!mSurface) {
+ return gfx::IntSize();
+ }
+ return gfx::IntSize(mSurface->GetDevicePixelWidth(),
+ mSurface->GetDevicePixelHeight());
+}
+
+gl::GLContext*
+MacIOSurfaceTextureHostOGL::gl() const
+{
+ return mCompositor ? mCompositor->gl() : nullptr;
+}
+
+MacIOSurfaceTextureSourceOGL::MacIOSurfaceTextureSourceOGL(
+ CompositorOGL* aCompositor,
+ MacIOSurface* aSurface)
+ : mCompositor(aCompositor)
+ , mSurface(aSurface)
+{
+ MOZ_ASSERT(aCompositor);
+ MOZ_COUNT_CTOR(MacIOSurfaceTextureSourceOGL);
+}
+
+MacIOSurfaceTextureSourceOGL::~MacIOSurfaceTextureSourceOGL()
+{
+ MOZ_COUNT_DTOR(MacIOSurfaceTextureSourceOGL);
+}
+
+gfx::IntSize
+MacIOSurfaceTextureSourceOGL::GetSize() const
+{
+ return gfx::IntSize(mSurface->GetDevicePixelWidth(),
+ mSurface->GetDevicePixelHeight());
+}
+
+gfx::SurfaceFormat
+MacIOSurfaceTextureSourceOGL::GetFormat() const
+{
+ return mSurface->HasAlpha() ? gfx::SurfaceFormat::R8G8B8A8
+ : gfx::SurfaceFormat::R8G8B8X8;
+}
+
+void
+MacIOSurfaceTextureSourceOGL::BindTexture(GLenum aTextureUnit,
+ gfx::SamplingFilter aSamplingFilter)
+{
+ gl::GLContext* gl = this->gl();
+ if (!gl || !gl->MakeCurrent()) {
+ NS_WARNING("Trying to bind a texture without a working GLContext");
+ return;
+ }
+ GLuint tex = mCompositor->GetTemporaryTexture(GetTextureTarget(), aTextureUnit);
+
+ gl->fActiveTexture(aTextureUnit);
+ gl->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, tex);
+ mSurface->CGLTexImageIOSurface2D(gl::GLContextCGL::Cast(gl)->GetCGLContext());
+ ApplySamplingFilterToBoundTexture(gl, aSamplingFilter, LOCAL_GL_TEXTURE_RECTANGLE_ARB);
+}
+
+void
+MacIOSurfaceTextureSourceOGL::SetCompositor(Compositor* aCompositor)
+{
+ mCompositor = AssertGLCompositor(aCompositor);
+ if (mCompositor && mNextSibling) {
+ mNextSibling->SetCompositor(aCompositor);
+ }
+}
+
+gl::GLContext*
+MacIOSurfaceTextureSourceOGL::gl() const
+{
+ return mCompositor ? mCompositor->gl() : nullptr;
+}
+
+} // namespace layers
+} // namespace mozilla