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e722cdd3ed
Enable (direct) external surface compositing for MacIOSurfaces. Works on Mac. Differential Revision: https://phabricator.services.mozilla.com/D144073
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
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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 "SharedSurfaceIO.h"
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#include "GLContextCGL.h"
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#include "MozFramebuffer.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/gfx/MacIOSurface.h"
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#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor, etc
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#include "mozilla/layers/LayersTypes.h"
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#include "ScopedGLHelpers.h"
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namespace mozilla {
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namespace gl {
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// -
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// Factory
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SurfaceFactory_IOSurface::SurfaceFactory_IOSurface(GLContext& gl)
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: SurfaceFactory({&gl, SharedSurfaceType::IOSurface,
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layers::TextureType::MacIOSurface, true}),
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mMaxDims(gfx::IntSize::Truncate(MacIOSurface::GetMaxWidth(),
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MacIOSurface::GetMaxHeight())) {}
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// -
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// Surface
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static void BackTextureWithIOSurf(GLContext* const gl, const GLuint tex,
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MacIOSurface* const ioSurf) {
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MOZ_ASSERT(gl->IsCurrent());
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ScopedBindTexture texture(gl, tex, LOCAL_GL_TEXTURE_RECTANGLE_ARB);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB,
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LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB,
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LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_S,
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LOCAL_GL_CLAMP_TO_EDGE);
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gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_T,
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LOCAL_GL_CLAMP_TO_EDGE);
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CGLContextObj cgl = GLContextCGL::Cast(gl)->GetCGLContext();
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MOZ_ASSERT(cgl);
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ioSurf->CGLTexImageIOSurface2D(gl, cgl, 0);
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}
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/*static*/
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UniquePtr<SharedSurface_IOSurface> SharedSurface_IOSurface::Create(
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const SharedSurfaceDesc& desc) {
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const auto& size = desc.size;
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const RefPtr<MacIOSurface> ioSurf =
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MacIOSurface::CreateIOSurface(size.width, size.height, true);
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if (!ioSurf) {
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NS_WARNING("Failed to create MacIOSurface.");
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return nullptr;
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}
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ioSurf->SetColorSpace(desc.colorSpace);
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// -
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auto tex = MakeUnique<Texture>(*desc.gl);
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BackTextureWithIOSurf(desc.gl, tex->name, ioSurf);
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const GLenum target = LOCAL_GL_TEXTURE_RECTANGLE;
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auto fb = MozFramebuffer::CreateForBacking(desc.gl, desc.size, 0, false,
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target, tex->name);
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if (!fb) return nullptr;
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return AsUnique(
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new SharedSurface_IOSurface(desc, std::move(fb), std::move(tex), ioSurf));
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}
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SharedSurface_IOSurface::SharedSurface_IOSurface(
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const SharedSurfaceDesc& desc, UniquePtr<MozFramebuffer> fb,
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UniquePtr<Texture> tex, const RefPtr<MacIOSurface>& ioSurf)
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: SharedSurface(desc, std::move(fb)),
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mTex(std::move(tex)),
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mIOSurf(ioSurf) {}
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SharedSurface_IOSurface::~SharedSurface_IOSurface() = default;
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void SharedSurface_IOSurface::ProducerReleaseImpl() {
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const auto& gl = mDesc.gl;
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if (!gl) return;
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gl->MakeCurrent();
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gl->fFlush();
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}
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Maybe<layers::SurfaceDescriptor>
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SharedSurface_IOSurface::ToSurfaceDescriptor() {
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const bool isOpaque = false; // RGBA
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return Some(layers::SurfaceDescriptorMacIOSurface(
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mIOSurf->GetIOSurfaceID(), isOpaque, mIOSurf->GetYUVColorSpace()));
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}
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} // namespace gl
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} // namespace mozilla
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