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

163 строки
4.0 KiB
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2012-05-21 15:12:37 +04:00
* 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 "SourceSurfaceCairo.h"
#include "DrawTargetCairo.h"
#include "HelpersCairo.h"
#include "DataSourceSurfaceWrapper.h"
#include "cairo.h"
namespace mozilla {
namespace gfx {
static SurfaceFormat
CairoFormatToSurfaceFormat(cairo_format_t format)
{
switch (format)
{
case CAIRO_FORMAT_ARGB32:
return SurfaceFormat::B8G8R8A8;
case CAIRO_FORMAT_RGB24:
return SurfaceFormat::B8G8R8X8;
case CAIRO_FORMAT_A8:
return SurfaceFormat::A8;
default:
return SurfaceFormat::B8G8R8A8;
}
}
SourceSurfaceCairo::SourceSurfaceCairo(cairo_surface_t* aSurface,
const IntSize& aSize,
const SurfaceFormat& aFormat,
DrawTargetCairo* aDrawTarget /* = nullptr */)
: mSize(aSize)
, mFormat(aFormat)
, mSurface(aSurface)
, mDrawTarget(aDrawTarget)
{
cairo_surface_reference(mSurface);
}
SourceSurfaceCairo::~SourceSurfaceCairo()
{
cairo_surface_destroy(mSurface);
}
IntSize
SourceSurfaceCairo::GetSize() const
{
return mSize;
}
SurfaceFormat
SourceSurfaceCairo::GetFormat() const
{
return mFormat;
}
already_AddRefed<DataSourceSurface>
SourceSurfaceCairo::GetDataSurface()
{
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 08:24:48 +03:00
RefPtr<DataSourceSurface> dataSurf;
if (cairo_surface_get_type(mSurface) == CAIRO_SURFACE_TYPE_IMAGE) {
dataSurf = new DataSourceSurfaceCairo(mSurface);
} else {
cairo_surface_t* imageSurf = cairo_image_surface_create(GfxFormatToCairoFormat(mFormat),
mSize.width, mSize.height);
// Fill the new image surface with the contents of our surface.
cairo_t* ctx = cairo_create(imageSurf);
cairo_set_source_surface(ctx, mSurface, 0, 0);
cairo_paint(ctx);
cairo_destroy(ctx);
dataSurf = new DataSourceSurfaceCairo(imageSurf);
cairo_surface_destroy(imageSurf);
}
// We also need to make sure that the returned surface has
// surface->GetType() == SurfaceType::DATA.
return MakeAndAddRef<DataSourceSurfaceWrapper>(dataSurf);
}
cairo_surface_t*
SourceSurfaceCairo::GetSurface() const
{
return mSurface;
}
void
SourceSurfaceCairo::DrawTargetWillChange()
{
if (mDrawTarget) {
mDrawTarget = nullptr;
// We're about to lose our version of the surface, so make a copy of it.
cairo_surface_t* surface = cairo_surface_create_similar(mSurface,
GfxFormatToCairoContent(mFormat),
mSize.width, mSize.height);
cairo_t* ctx = cairo_create(surface);
cairo_pattern_t* pat = cairo_pattern_create_for_surface(mSurface);
cairo_set_source(ctx, pat);
cairo_paint(ctx);
cairo_destroy(ctx);
cairo_pattern_destroy(pat);
// Swap in this new surface.
cairo_surface_destroy(mSurface);
mSurface = surface;
}
}
DataSourceSurfaceCairo::DataSourceSurfaceCairo(cairo_surface_t* imageSurf)
: mImageSurface(imageSurf)
{
cairo_surface_reference(mImageSurface);
}
DataSourceSurfaceCairo::~DataSourceSurfaceCairo()
{
cairo_surface_destroy(mImageSurface);
}
unsigned char *
DataSourceSurfaceCairo::GetData()
{
return cairo_image_surface_get_data(mImageSurface);
}
int32_t
DataSourceSurfaceCairo::Stride()
{
return cairo_image_surface_get_stride(mImageSurface);
}
IntSize
DataSourceSurfaceCairo::GetSize() const
{
IntSize size;
size.width = cairo_image_surface_get_width(mImageSurface);
size.height = cairo_image_surface_get_height(mImageSurface);
return size;
}
SurfaceFormat
DataSourceSurfaceCairo::GetFormat() const
{
return CairoFormatToSurfaceFormat(cairo_image_surface_get_format(mImageSurface));
}
cairo_surface_t*
DataSourceSurfaceCairo::GetSurface() const
{
return mImageSurface;
}
} // namespace gfx
} // namespace mozilla