gecko/gfx/thebes/gfxCachedTempSurface.cpp
Ehsan Akhgari 8c296bbcd4 Bug 579517 - Part 1: Automated conversion of NSPR numeric types to stdint types in Gecko; r=bsmedberg
This patch was generated by a script.  Here's the source of the script for
future reference:

function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
       ! -wholename "*security/nss*" \
       ! -wholename "*/.hg*" \
       ! -wholename "obj-ff-dbg*" \
       ! -name nsXPCOMCID.h \
       ! -name prtypes.h \
         -type f \
      \( -iname "*.cpp" \
         -o -iname "*.h" \
         -o -iname "*.c" \
         -o -iname "*.cc" \
         -o -iname "*.idl" \
         -o -iname "*.ipdl" \
         -o -iname "*.ipdlh" \
         -o -iname "*.mm" \) | \
    xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}

convert PRInt8 int8_t
convert PRUint8 uint8_t
convert PRInt16 int16_t
convert PRUint16 uint16_t
convert PRInt32 int32_t
convert PRUint32 uint32_t
convert PRInt64 int64_t
convert PRUint64 uint64_t

convert PRIntn int
convert PRUintn unsigned

convert PRSize size_t

convert PROffset32 int32_t
convert PROffset64 int64_t

convert PRPtrdiff ptrdiff_t

convert PRFloat64 double
2012-08-22 11:56:38 -04:00

111 lines
3.1 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 "gfxCachedTempSurface.h"
#include "gfxContext.h"
#include "mozilla/Attributes.h"
class CachedSurfaceExpirationTracker MOZ_FINAL :
public nsExpirationTracker<gfxCachedTempSurface,2> {
public:
// With K = 2, this means that surfaces will be released when they are not
// used for 1-2 seconds.
enum { TIMEOUT_MS = 1000 };
CachedSurfaceExpirationTracker()
: nsExpirationTracker<gfxCachedTempSurface,2>(TIMEOUT_MS) {}
~CachedSurfaceExpirationTracker() {
AgeAllGenerations();
}
virtual void NotifyExpired(gfxCachedTempSurface* aSurface) {
RemoveObject(aSurface);
aSurface->Expire();
}
static void MarkSurfaceUsed(gfxCachedTempSurface* aSurface)
{
if (aSurface->GetExpirationState()->IsTracked()) {
sExpirationTracker->MarkUsed(aSurface);
return;
}
if (!sExpirationTracker) {
sExpirationTracker = new CachedSurfaceExpirationTracker();
}
sExpirationTracker->AddObject(aSurface);
}
static void RemoveSurface(gfxCachedTempSurface* aSurface)
{
if (!sExpirationTracker)
return;
if (aSurface->GetExpirationState()->IsTracked()) {
sExpirationTracker->RemoveObject(aSurface);
}
if (sExpirationTracker->IsEmpty()) {
delete sExpirationTracker;
sExpirationTracker = nullptr;
}
}
private:
static CachedSurfaceExpirationTracker* sExpirationTracker;
};
CachedSurfaceExpirationTracker*
CachedSurfaceExpirationTracker::sExpirationTracker = nullptr;
gfxCachedTempSurface::~gfxCachedTempSurface()
{
CachedSurfaceExpirationTracker::RemoveSurface(this);
}
already_AddRefed<gfxContext>
gfxCachedTempSurface::Get(gfxASurface::gfxContentType aContentType,
const gfxRect& aRect,
gfxASurface* aSimilarTo)
{
if (mSurface) {
/* Verify the current buffer is valid for this purpose */
if (mSize.width < aRect.width || mSize.height < aRect.height
|| mSurface->GetContentType() != aContentType) {
mSurface = nullptr;
} else {
NS_ASSERTION(mType == aSimilarTo->GetType(),
"Unexpected surface type change");
}
}
bool cleared = false;
if (!mSurface) {
mSize = gfxIntSize(int32_t(ceil(aRect.width)), int32_t(ceil(aRect.height)));
mSurface = aSimilarTo->CreateSimilarSurface(aContentType, mSize);
if (!mSurface)
return nullptr;
cleared = true;
#ifdef DEBUG
mType = aSimilarTo->GetType();
#endif
}
mSurface->SetDeviceOffset(-aRect.TopLeft());
nsRefPtr<gfxContext> ctx = new gfxContext(mSurface);
ctx->Rectangle(aRect);
ctx->Clip();
if (!cleared && aContentType != gfxASurface::CONTENT_COLOR) {
ctx->SetOperator(gfxContext::OPERATOR_CLEAR);
ctx->Paint();
ctx->SetOperator(gfxContext::OPERATOR_OVER);
}
CachedSurfaceExpirationTracker::MarkSurfaceUsed(this);
return ctx.forget();
}