gecko-dev/gfx/2d/SourceSurfaceD2D.cpp

252 строки
6.1 KiB
C++

/* -*- 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 "SourceSurfaceD2D.h"
#include "DrawTargetD2D.h"
#include "Logging.h"
#include "Tools.h"
namespace mozilla {
namespace gfx {
SourceSurfaceD2D::SourceSurfaceD2D()
{
}
SourceSurfaceD2D::~SourceSurfaceD2D()
{
if (mBitmap) {
DrawTargetD2D::mVRAMUsageSS -= GetByteSize();
}
}
IntSize
SourceSurfaceD2D::GetSize() const
{
return mSize;
}
SurfaceFormat
SourceSurfaceD2D::GetFormat() const
{
return mFormat;
}
bool
SourceSurfaceD2D::IsValid() const
{
return mDevice == Factory::GetDirect3D10Device();
}
TemporaryRef<DataSourceSurface>
SourceSurfaceD2D::GetDataSurface()
{
RefPtr<DataSourceSurfaceD2D> result = new DataSourceSurfaceD2D(this);
if (result->IsValid()) {
return result;
}
return nullptr;
}
bool
SourceSurfaceD2D::InitFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat,
ID2D1RenderTarget *aRT)
{
HRESULT hr;
mFormat = aFormat;
mSize = aSize;
if ((uint32_t)aSize.width > aRT->GetMaximumBitmapSize() ||
(uint32_t)aSize.height > aRT->GetMaximumBitmapSize()) {
gfxDebug() << "Bitmap does not fit in texture.";
return false;
}
D2D1_BITMAP_PROPERTIES props =
D2D1::BitmapProperties(D2D1::PixelFormat(DXGIFormat(aFormat), AlphaMode(aFormat)));
hr = aRT->CreateBitmap(D2DIntSize(aSize), aData, aStride, props, byRef(mBitmap));
if (FAILED(hr)) {
gfxWarning() << "Failed to create D2D Bitmap for data. Code: " << hr;
return false;
}
DrawTargetD2D::mVRAMUsageSS += GetByteSize();
mDevice = Factory::GetDirect3D10Device();
return true;
}
bool
SourceSurfaceD2D::InitFromTexture(ID3D10Texture2D *aTexture,
SurfaceFormat aFormat,
ID2D1RenderTarget *aRT)
{
HRESULT hr;
RefPtr<IDXGISurface> surf;
hr = aTexture->QueryInterface((IDXGISurface**)&surf);
if (FAILED(hr)) {
gfxWarning() << "Failed to QI texture to surface. Code: " << hr;
return false;
}
D3D10_TEXTURE2D_DESC desc;
aTexture->GetDesc(&desc);
mSize = IntSize(desc.Width, desc.Height);
mFormat = aFormat;
D2D1_BITMAP_PROPERTIES props =
D2D1::BitmapProperties(D2D1::PixelFormat(DXGIFormat(aFormat), AlphaMode(aFormat)));
hr = aRT->CreateSharedBitmap(IID_IDXGISurface, surf, &props, byRef(mBitmap));
if (FAILED(hr)) {
gfxWarning() << "Failed to create SharedBitmap. Code: " << hr;
return false;
}
aTexture->GetDevice(byRef(mDevice));
DrawTargetD2D::mVRAMUsageSS += GetByteSize();
return true;
}
uint32_t
SourceSurfaceD2D::GetByteSize() const
{
return mSize.width * mSize.height * BytesPerPixel(mFormat);
}
DataSourceSurfaceD2D::DataSourceSurfaceD2D(SourceSurfaceD2D* aSourceSurface)
: mTexture(nullptr)
, mFormat(aSourceSurface->mFormat)
, mSize(aSourceSurface->mSize)
, mMapped(false)
{
// We allocate ourselves a regular D3D surface (sourceTexture) and paint the
// D2D bitmap into it via a DXGI render target. Then we need to copy
// sourceTexture into a staging texture (mTexture), which we will lazily map
// to get the data.
CD3D10_TEXTURE2D_DESC desc(DXGIFormat(mFormat), mSize.width, mSize.height);
desc.MipLevels = 1;
desc.Usage = D3D10_USAGE_DEFAULT;
desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
RefPtr<ID3D10Texture2D> sourceTexture;
HRESULT hr = aSourceSurface->mDevice->CreateTexture2D(&desc, nullptr,
byRef(sourceTexture));
if (FAILED(hr)) {
gfxWarning() << "Failed to create texture. Code: " << hr;
return;
}
RefPtr<IDXGISurface> dxgiSurface;
hr = sourceTexture->QueryInterface((IDXGISurface**)byRef(dxgiSurface));
if (FAILED(hr)) {
gfxWarning() << "Failed to create DXGI surface. Code: " << hr;
return;
}
D2D1_RENDER_TARGET_PROPERTIES rtProps = D2D1::RenderTargetProperties(
D2D1_RENDER_TARGET_TYPE_DEFAULT,
D2D1::PixelFormat(DXGI_FORMAT_UNKNOWN, D2D1_ALPHA_MODE_PREMULTIPLIED));
RefPtr<ID2D1RenderTarget> renderTarget;
hr = DrawTargetD2D::factory()->CreateDxgiSurfaceRenderTarget(dxgiSurface,
&rtProps,
byRef(renderTarget));
if (FAILED(hr)) {
gfxWarning() << "Failed to create render target. Code: " << hr;
return;
}
renderTarget->BeginDraw();
renderTarget->DrawBitmap(aSourceSurface->mBitmap,
D2D1::RectF(0, 0,
Float(mSize.width),
Float(mSize.height)));
renderTarget->EndDraw();
desc.CPUAccessFlags = D3D10_CPU_ACCESS_READ;
desc.Usage = D3D10_USAGE_STAGING;
desc.BindFlags = 0;
hr = aSourceSurface->mDevice->CreateTexture2D(&desc, nullptr, byRef(mTexture));
if (FAILED(hr)) {
gfxWarning() << "Failed to create staging texture. Code: " << hr;
mTexture = nullptr;
return;
}
aSourceSurface->mDevice->CopyResource(mTexture, sourceTexture);
}
DataSourceSurfaceD2D::~DataSourceSurfaceD2D()
{
if (mMapped) {
mTexture->Unmap(0);
}
}
unsigned char*
DataSourceSurfaceD2D::GetData()
{
EnsureMappedTexture();
if (!mMapped) {
return nullptr;
}
return reinterpret_cast<unsigned char*>(mData.pData);
}
int32_t
DataSourceSurfaceD2D::Stride()
{
EnsureMappedTexture();
if (!mMapped) {
return 0;
}
return mData.RowPitch;
}
IntSize
DataSourceSurfaceD2D::GetSize() const
{
return mSize;
}
SurfaceFormat
DataSourceSurfaceD2D::GetFormat() const
{
return mFormat;
}
void
DataSourceSurfaceD2D::EnsureMappedTexture()
{
if (mMapped ||
!mTexture) {
return;
}
HRESULT hr = mTexture->Map(0, D3D10_MAP_READ, 0, &mData);
if (FAILED(hr)) {
gfxWarning() << "Failed to map texture. Code: " << hr;
mTexture = nullptr;
} else {
mMapped = true;
}
}
}
}