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