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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "RenderMacIOSurfaceTextureHost.h"
#include "GLContextCGL.h"
#include "mozilla/gfx/Logging.h"
#include "ScopedGLHelpers.h"
namespace mozilla {
namespace wr {
static CGLError CreateTextureForPlane(uint8_t aPlaneID, gl::GLContext* aGL,
MacIOSurface* aSurface,
GLuint* aTexture) {
MOZ_ASSERT(aGL && aSurface && aTexture);
aGL->fGenTextures(1, aTexture);
ActivateBindAndTexParameteri(aGL, LOCAL_GL_TEXTURE0,
LOCAL_GL_TEXTURE_RECTANGLE_ARB, *aTexture);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_T,
LOCAL_GL_CLAMP_TO_EDGE);
aGL->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, LOCAL_GL_TEXTURE_WRAP_S,
LOCAL_GL_CLAMP_TO_EDGE);
CGLError result = kCGLNoError;
gfx::SurfaceFormat readFormat = gfx::SurfaceFormat::UNKNOWN;
result = aSurface->CGLTexImageIOSurface2D(
aGL, gl::GLContextCGL::Cast(aGL)->GetCGLContext(), aPlaneID, &readFormat);
// If this is a yuv format, the Webrender only supports YUV422 interleaving
// format.
MOZ_ASSERT(aSurface->GetFormat() != gfx::SurfaceFormat::YUV422 ||
readFormat == gfx::SurfaceFormat::YUV422);
return result;
}
RenderMacIOSurfaceTextureHost::RenderMacIOSurfaceTextureHost(
MacIOSurface* aSurface)
: mSurface(aSurface), mTextureHandles{0, 0, 0} {
MOZ_COUNT_CTOR_INHERITED(RenderMacIOSurfaceTextureHost, RenderTextureHost);
}
RenderMacIOSurfaceTextureHost::~RenderMacIOSurfaceTextureHost() {
MOZ_COUNT_DTOR_INHERITED(RenderMacIOSurfaceTextureHost, RenderTextureHost);
DeleteTextureHandle();
}
GLuint RenderMacIOSurfaceTextureHost::GetGLHandle(uint8_t aChannelIndex) const {
MOZ_ASSERT(mSurface);
MOZ_ASSERT((mSurface->GetPlaneCount() == 0)
? (aChannelIndex == mSurface->GetPlaneCount())
: (aChannelIndex < mSurface->GetPlaneCount()));
return mTextureHandles[aChannelIndex];
}
gfx::IntSize RenderMacIOSurfaceTextureHost::GetSize(
uint8_t aChannelIndex) const {
MOZ_ASSERT(mSurface);
MOZ_ASSERT((mSurface->GetPlaneCount() == 0)
? (aChannelIndex == mSurface->GetPlaneCount())
: (aChannelIndex < mSurface->GetPlaneCount()));
if (!mSurface) {
return gfx::IntSize();
}
return gfx::IntSize(mSurface->GetDevicePixelWidth(aChannelIndex),
mSurface->GetDevicePixelHeight(aChannelIndex));
}
size_t RenderMacIOSurfaceTextureHost::Bytes() {
return mSurface->GetAllocSize();
}
wr::WrExternalImage RenderMacIOSurfaceTextureHost::Lock(uint8_t aChannelIndex,
gl::GLContext* aGL) {
if (mGL.get() != aGL) {
// release the texture handle in the previous gl context
DeleteTextureHandle();
mGL = aGL;
mGL->MakeCurrent();
}
if (!mSurface || !mGL || !mGL->MakeCurrent()) {
return InvalidToWrExternalImage();
}
if (!mTextureHandles[0]) {
MOZ_ASSERT(gl::GLContextCGL::Cast(mGL.get())->GetCGLContext());
// The result of GetPlaneCount() is 0 for single plane format, but it will
// be 2 if the format has 2 planar data.
CreateTextureForPlane(0, mGL, mSurface, &(mTextureHandles[0]));
for (size_t i = 1; i < mSurface->GetPlaneCount(); ++i) {
CreateTextureForPlane(i, mGL, mSurface, &(mTextureHandles[i]));
}
}
const auto uvs = GetUvCoords(GetSize(aChannelIndex));
return NativeTextureToWrExternalImage(GetGLHandle(aChannelIndex), uvs.first.x,
uvs.first.y, uvs.second.x,
uvs.second.y);
}
void RenderMacIOSurfaceTextureHost::Unlock() {}
void RenderMacIOSurfaceTextureHost::DeleteTextureHandle() {
if (mTextureHandles[0] != 0 && mGL && mGL->MakeCurrent()) {
// Calling glDeleteTextures on 0 isn't an error. So, just make them a single
// call.
mGL->fDeleteTextures(3, mTextureHandles);
for (size_t i = 0; i < 3; ++i) {
mTextureHandles[i] = 0;
}
}
}
size_t RenderMacIOSurfaceTextureHost::GetPlaneCount() const {
size_t planeCount = mSurface->GetPlaneCount();
return planeCount > 0 ? planeCount : 1;
}
gfx::SurfaceFormat RenderMacIOSurfaceTextureHost::GetFormat() const {
return mSurface->GetFormat();
}
gfx::ColorDepth RenderMacIOSurfaceTextureHost::GetColorDepth() const {
return mSurface->GetColorDepth();
}
gfx::YUVRangedColorSpace RenderMacIOSurfaceTextureHost::GetYUVColorSpace()
const {
return ToYUVRangedColorSpace(mSurface->GetYUVColorSpace(),
mSurface->GetColorRange());
}
bool RenderMacIOSurfaceTextureHost::MapPlane(RenderCompositor* aCompositor,
uint8_t aChannelIndex,
PlaneInfo& aPlaneInfo) {
if (!aChannelIndex) {
mSurface->Lock();
}
aPlaneInfo.mData = mSurface->GetBaseAddressOfPlane(aChannelIndex);
aPlaneInfo.mStride = mSurface->GetBytesPerRow(aChannelIndex);
aPlaneInfo.mSize =
gfx::IntSize(mSurface->GetDevicePixelWidth(aChannelIndex),
mSurface->GetDevicePixelHeight(aChannelIndex));
return true;
}
void RenderMacIOSurfaceTextureHost::UnmapPlanes() { mSurface->Unlock(); }
} // namespace wr
} // namespace mozilla
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