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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,
#include "RenderCompositorOGLSWGL.h"
#include "GLContext.h"
#include "GLContextEGL.h"
#include "mozilla/layers/BuildConstants.h"
#include "mozilla/layers/CompositorOGL.h"
#include "mozilla/layers/Effects.h"
#include "mozilla/layers/TextureHostOGL.h"
#include "mozilla/widget/CompositorWidget.h"
#include "OGLShaderProgram.h"
#ifdef MOZ_WIDGET_ANDROID
# include "mozilla/java/GeckoSurfaceTextureWrappers.h"
# include "mozilla/layers/AndroidHardwareBuffer.h"
# include "mozilla/webrender/RenderAndroidHardwareBufferTextureHost.h"
# include "mozilla/webrender/RenderAndroidSurfaceTextureHost.h"
# include "mozilla/widget/AndroidCompositorWidget.h"
# include <android/native_window.h>
# include <android/native_window_jni.h>
#endif
#ifdef MOZ_WIDGET_GTK
# include "mozilla/widget/GtkCompositorWidget.h"
# include <gdk/gdk.h>
# ifdef MOZ_X11
# include <gdk/gdkx.h>
# endif
#endif
namespace mozilla {
using namespace layers;
using namespace gfx;
namespace wr {
extern LazyLogModule gRenderThreadLog;
#define LOG(...) MOZ_LOG(gRenderThreadLog, LogLevel::Debug, (__VA_ARGS__))
UniquePtr<RenderCompositor> RenderCompositorOGLSWGL::Create(
const RefPtr<widget::CompositorWidget>& aWidget, nsACString& aError) {
if (!aWidget->GetCompositorOptions().AllowSoftwareWebRenderOGL()) {
return nullptr;
}
RefPtr<Compositor> compositor;
#ifdef MOZ_WIDGET_ANDROID
RefPtr<gl::GLContext> context =
RenderThread::Get()->SingletonGLForCompositorOGL();
if (!context) {
gfxCriticalNote << "SingletonGL does not exist for SWGL";
return nullptr;
}
auto programs = RenderThread::Get()->GetProgramsForCompositorOGL();
if (!programs) {
gfxCriticalNote << "Failed to get Programs for CompositorOGL for SWGL";
return nullptr;
}
nsCString log;
RefPtr<CompositorOGL> compositorOGL;
compositorOGL = new CompositorOGL(aWidget, /* aSurfaceWidth */ -1,
/* aSurfaceHeight */ -1,
/* aUseExternalSurfaceSize */ true);
if (!compositorOGL->Initialize(context, programs, &log)) {
gfxCriticalNote << "Failed to initialize CompositorOGL for SWGL: "
<< log.get();
return nullptr;
}
compositor = compositorOGL;
#elif defined(MOZ_WIDGET_GTK)
nsCString log;
RefPtr<CompositorOGL> compositorOGL;
compositorOGL = new CompositorOGL(aWidget);
if (!compositorOGL->Initialize(&log)) {
gfxCriticalNote << "Failed to initialize CompositorOGL for SWGL: "
<< log.get();
return nullptr;
}
compositor = compositorOGL;
#endif
if (!compositor) {
return nullptr;
}
void* ctx = wr_swgl_create_context();
if (!ctx) {
gfxCriticalNote << "Failed SWGL context creation for WebRender";
return nullptr;
}
return MakeUnique<RenderCompositorOGLSWGL>(compositor, aWidget, ctx);
}
RenderCompositorOGLSWGL::RenderCompositorOGLSWGL(
Compositor* aCompositor, const RefPtr<widget::CompositorWidget>& aWidget,
void* aContext)
: RenderCompositorLayersSWGL(aCompositor, aWidget, aContext) {
LOG("RenderCompositorOGLSWGL::RenderCompositorOGLSWGL()");
}
RenderCompositorOGLSWGL::~RenderCompositorOGLSWGL() {
LOG("RRenderCompositorOGLSWGL::~RenderCompositorOGLSWGL()");
#ifdef MOZ_WIDGET_ANDROID
java::GeckoSurfaceTexture::DestroyUnused((int64_t)GetGLContext());
DestroyEGLSurface();
#endif
}
gl::GLContext* RenderCompositorOGLSWGL::GetGLContext() {
return mCompositor->AsCompositorOGL()->gl();
}
bool RenderCompositorOGLSWGL::MakeCurrent() {
GetGLContext()->MakeCurrent();
#ifdef MOZ_WIDGET_ANDROID
if (GetGLContext()->GetContextType() == gl::GLContextType::EGL) {
gl::GLContextEGL::Cast(GetGLContext())->SetEGLSurfaceOverride(mEGLSurface);
}
#endif
RenderCompositorLayersSWGL::MakeCurrent();
return true;
}
EGLSurface RenderCompositorOGLSWGL::CreateEGLSurface() {
MOZ_ASSERT(GetGLContext()->GetContextType() == gl::GLContextType::EGL);
EGLSurface surface = EGL_NO_SURFACE;
surface = gl::GLContextEGL::CreateEGLSurfaceForCompositorWidget(
mWidget, gl::GLContextEGL::Cast(GetGLContext())->mSurfaceConfig);
if (surface == EGL_NO_SURFACE) {
const auto* renderThread = RenderThread::Get();
gfxCriticalNote << "Failed to create EGLSurface. "
<< renderThread->RendererCount() << " renderers, "
<< renderThread->ActiveRendererCount() << " active.";
}
// The subsequent render after creating a new surface must be a full render.
mFullRender = true;
return surface;
}
void RenderCompositorOGLSWGL::DestroyEGLSurface() {
MOZ_ASSERT(GetGLContext()->GetContextType() == gl::GLContextType::EGL);
const auto& gle = gl::GLContextEGL::Cast(GetGLContext());
const auto& egl = gle->mEgl;
// Release EGLSurface of back buffer before calling ResizeBuffers().
if (mEGLSurface) {
gle->SetEGLSurfaceOverride(EGL_NO_SURFACE);
gl::GLContextEGL::DestroySurface(*egl, mEGLSurface);
mEGLSurface = EGL_NO_SURFACE;
}
}
bool RenderCompositorOGLSWGL::BeginFrame() {
MOZ_ASSERT(!mInFrame);
RenderCompositorLayersSWGL::BeginFrame();
#ifdef MOZ_WIDGET_ANDROID
java::GeckoSurfaceTexture::DestroyUnused((int64_t)GetGLContext());
GetGLContext()
->MakeCurrent(); // DestroyUnused can change the current context!
#endif
return true;
}
RenderedFrameId RenderCompositorOGLSWGL::EndFrame(
const nsTArray<DeviceIntRect>& aDirtyRects) {
mFullRender = false;
return RenderCompositorLayersSWGL::EndFrame(aDirtyRects);
}
void RenderCompositorOGLSWGL::HandleExternalImage(
RenderTextureHost* aExternalImage, FrameSurface& aFrameSurface) {
MOZ_ASSERT(aExternalImage);
// We need to hold the texture source separately from the effect,
// since the effect doesn't hold a strong reference.
RefPtr<TextureSource> layer =
aExternalImage->CreateTextureSource(mCompositor);
if (layer) {
RefPtr<TexturedEffect> texturedEffect = CreateTexturedEffect(
aExternalImage->GetFormat(), layer, aFrameSurface.mFilter,
/* isAlphaPremultiplied */ true);
auto size = layer->GetSize();
gfx::Rect drawRect(0.0, 0.0, float(size.width), float(size.height));
EffectChain effect;
effect.mPrimaryEffect = texturedEffect;
mCompositor->DrawQuad(drawRect, aFrameSurface.mClipRect, effect, 1.0,
aFrameSurface.mTransform, drawRect);
}
}
void RenderCompositorOGLSWGL::GetCompositorCapabilities(
CompositorCapabilities* aCaps) {
RenderCompositor::GetCompositorCapabilities(aCaps);
// max_update_rects are not yet handled properly
aCaps->max_update_rects = 0;
}
bool RenderCompositorOGLSWGL::RequestFullRender() { return mFullRender; }
void RenderCompositorOGLSWGL::Pause() {
#ifdef MOZ_WIDGET_ANDROID
DestroyEGLSurface();
#elif defined(MOZ_WIDGET_GTK)
mCompositor->Pause();
#endif
}
bool RenderCompositorOGLSWGL::Resume() {
#ifdef MOZ_WIDGET_ANDROID
// Destroy EGLSurface if it exists.
DestroyEGLSurface();
auto size = GetBufferSize();
GLint maxTextureSize = 0;
GetGLContext()->fGetIntegerv(LOCAL_GL_MAX_TEXTURE_SIZE,
(GLint*)&maxTextureSize);
// When window size is too big, hardware buffer allocation could fail.
if (maxTextureSize < size.width || maxTextureSize < size.height) {
gfxCriticalNote << "Too big ANativeWindow size(" << size.width << ", "
<< size.height << ") MaxTextureSize " << maxTextureSize;
return false;
}
mEGLSurface = CreateEGLSurface();
if (mEGLSurface == EGL_NO_SURFACE) {
// Often when we fail to create an EGL surface it is because the
// Java Surface we have been provided is invalid. Therefore the on
// the first occurence we don't raise a WebRenderError and instead
// just return failure. This allows the widget a chance to request
// a new Java Surface. On subsequent failures, raising the
// WebRenderError will result in the compositor being recreated,
// falling back through webrender configurations, and eventually
// crashing if we still do not succeed.
if (!mHandlingNewSurfaceError) {
mHandlingNewSurfaceError = true;
} else {
RenderThread::Get()->HandleWebRenderError(WebRenderError::NEW_SURFACE);
}
return false;
}
mHandlingNewSurfaceError = false;
gl::GLContextEGL::Cast(GetGLContext())->SetEGLSurfaceOverride(mEGLSurface);
mCompositor->SetDestinationSurfaceSize(size.ToUnknownSize());
#elif defined(MOZ_WIDGET_GTK)
bool resumed = mCompositor->Resume();
if (!resumed) {
RenderThread::Get()->HandleWebRenderError(WebRenderError::NEW_SURFACE);
return false;
}
#endif
return true;
}
bool RenderCompositorOGLSWGL::IsPaused() {
#ifdef MOZ_WIDGET_ANDROID
return mEGLSurface == EGL_NO_SURFACE;
#endif
return false;
}
LayoutDeviceIntSize RenderCompositorOGLSWGL::GetBufferSize() {
return mWidget->GetClientSize();
}
UniquePtr<RenderCompositorLayersSWGL::Tile>
RenderCompositorOGLSWGL::DoCreateTile(Surface* aSurface) {
auto source = MakeRefPtr<TextureImageTextureSourceOGL>(
mCompositor->AsCompositorOGL(), layers::TextureFlags::NO_FLAGS);
return MakeUnique<TileOGL>(std::move(source), aSurface->TileSize());
}
bool RenderCompositorOGLSWGL::MaybeReadback(
const gfx::IntSize& aReadbackSize, const wr::ImageFormat& aReadbackFormat,
const Range<uint8_t>& aReadbackBuffer, bool* aNeedsYFlip) {
#ifdef MOZ_WIDGET_ANDROID
MOZ_ASSERT(aReadbackFormat == wr::ImageFormat::RGBA8);
const GLenum format = LOCAL_GL_RGBA;
#else
MOZ_ASSERT(aReadbackFormat == wr::ImageFormat::BGRA8);
const GLenum format = LOCAL_GL_BGRA;
#endif
GetGLContext()->fReadPixels(0, 0, aReadbackSize.width, aReadbackSize.height,
format, LOCAL_GL_UNSIGNED_BYTE,
&aReadbackBuffer[0]);
if (aNeedsYFlip) {
*aNeedsYFlip = true;
}
return true;
}
// This is a DataSourceSurface that represents a 0-based PBO for GLTextureImage.
class PBOUnpackSurface : public gfx::DataSourceSurface {
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(PBOUnpackSurface, override)
explicit PBOUnpackSurface(const gfx::IntSize& aSize) : mSize(aSize) {}
uint8_t* GetData() override { return nullptr; }
int32_t Stride() override { return mSize.width * sizeof(uint32_t); }
gfx::SurfaceType GetType() const override {
return gfx::SurfaceType::DATA_ALIGNED;
}
gfx::IntSize GetSize() const override { return mSize; }
gfx::SurfaceFormat GetFormat() const override {
return gfx::SurfaceFormat::B8G8R8A8;
}
// PBO offsets need to start from a 0 address, but DataSourceSurface::Map
// checks for failure by comparing the address against nullptr. Override Map
// to work around this.
bool Map(MapType, MappedSurface* aMappedSurface) override {
aMappedSurface->mData = GetData();
aMappedSurface->mStride = Stride();
return true;
}
void Unmap() override {}
private:
gfx::IntSize mSize;
};
RenderCompositorOGLSWGL::TileOGL::TileOGL(
RefPtr<layers::TextureImageTextureSourceOGL>&& aTexture,
const gfx::IntSize& aSize)
: mTexture(aTexture) {
auto* gl = mTexture->gl();
if (gl && gl->HasPBOState() && gl->MakeCurrent()) {
mSurface = new PBOUnpackSurface(aSize);
// Create a PBO large enough to encompass any valid rects within the tile.
gl->fGenBuffers(1, &mPBO);
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, mPBO);
gl->fBufferData(LOCAL_GL_PIXEL_UNPACK_BUFFER,
mSurface->Stride() * aSize.height, nullptr,
LOCAL_GL_DYNAMIC_DRAW);
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
} else {
// Couldn't allocate a PBO, so just use a memory surface instead.
mSurface = gfx::Factory::CreateDataSourceSurface(
aSize, gfx::SurfaceFormat::B8G8R8A8);
}
}
RenderCompositorOGLSWGL::TileOGL::~TileOGL() {
if (mPBO) {
auto* gl = mTexture->gl();
if (gl && gl->MakeCurrent()) {
gl->fDeleteBuffers(1, &mPBO);
mPBO = 0;
}
}
}
layers::DataTextureSource*
RenderCompositorOGLSWGL::TileOGL::GetTextureSource() {
return mTexture.get();
}
bool RenderCompositorOGLSWGL::TileOGL::Map(wr::DeviceIntRect aDirtyRect,
wr::DeviceIntRect aValidRect,
void** aData, int32_t* aStride) {
if (mPBO) {
auto* gl = mTexture->gl();
if (!gl) {
return false;
}
// Map the PBO, but only within the range of the buffer that spans from the
// linear start offset to the linear end offset. Since we don't care about
// the previous contents of the buffer, we can just tell OpenGL to
// invalidate the entire buffer, even though we're only mapping a sub-range.
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, mPBO);
size_t stride = mSurface->Stride();
size_t offset =
stride * aValidRect.min.y + aValidRect.min.x * sizeof(uint32_t);
size_t length = stride * (aValidRect.height() - 1) +
(aValidRect.width()) * sizeof(uint32_t);
void* data = gl->fMapBufferRange(
LOCAL_GL_PIXEL_UNPACK_BUFFER, offset, length,
LOCAL_GL_MAP_WRITE_BIT | LOCAL_GL_MAP_INVALIDATE_BUFFER_BIT);
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
if (!data) {
return false;
}
*aData = data;
*aStride = stride;
} else {
// No PBO is available, so just directly write to the memory surface.
gfx::DataSourceSurface::MappedSurface map;
if (!mSurface->Map(gfx::DataSourceSurface::READ_WRITE, &map)) {
return false;
}
// Verify that we're not somehow using a PBOUnpackSurface.
MOZ_ASSERT(map.mData != nullptr);
// glTex(Sub)Image on ES doesn't support arbitrary strides without
// the EXT_unpack_subimage extension. To avoid needing to make a
// copy of the data we'll always draw it with stride = bpp*width
// unless we're uploading the entire texture.
if (!mTexture->IsValid()) {
// If we don't have a texture we need to position our
// data in the correct spot because we're going to upload
// the entire surface
*aData = map.mData + aValidRect.min.y * map.mStride +
aValidRect.min.x * sizeof(uint32_t);
*aStride = map.mStride;
mSubSurface = nullptr;
} else {
// Otherwise, we can just use the top left as a scratch space
*aData = map.mData;
*aStride = aDirtyRect.width() * BytesPerPixel(mSurface->GetFormat());
mSubSurface = Factory::CreateWrappingDataSourceSurface(
(uint8_t*)*aData, *aStride,
IntSize(aDirtyRect.width(), aDirtyRect.height()),
mSurface->GetFormat());
}
}
return true;
}
void RenderCompositorOGLSWGL::TileOGL::Unmap(const gfx::IntRect& aDirtyRect) {
nsIntRegion dirty(aDirtyRect);
if (mPBO) {
// If there is a PBO, it must be unmapped before it can be sourced from.
// Leave the PBO bound before the call to Update so that the texture uploads
// will source from it.
auto* gl = mTexture->gl();
if (!gl) {
return;
}
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, mPBO);
gl->fUnmapBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER);
mTexture->Update(mSurface, &dirty);
gl->fBindBuffer(LOCAL_GL_PIXEL_UNPACK_BUFFER, 0);
} else {
if (mSubSurface) {
mSurface->Unmap();
// Our subsurface has a stride = aDirtyRect.width
// We use a negative offset to move it to match
// the dirty rect's top-left. These two offsets
// will cancel each other out by the time we reach
// TexSubImage.
IntPoint srcOffset = {0, 0};
IntPoint dstOffset = aDirtyRect.TopLeft();
// adjust the dirty region to be relative to the dstOffset
dirty.MoveBy(-dstOffset);
mTexture->Update(mSubSurface, &dirty, &srcOffset, &dstOffset);
mSubSurface = nullptr;
} else {
mSurface->Unmap();
mTexture->Update(mSurface, &dirty);
}
}
}
} // namespace wr
} // namespace mozilla