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gecko/gfx/thebes/gfxASurface.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Foundation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <stuart@mozilla.com>
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIMemoryReporter.h"
#include "nsMemory.h"
#include "gfxASurface.h"
#include "gfxImageSurface.h"
#include "cairo.h"
#ifdef CAIRO_HAS_WIN32_SURFACE
#include "gfxWindowsSurface.h"
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
#include "gfxD2DSurface.h"
#endif
#ifdef MOZ_X11
#include "gfxXlibSurface.h"
#endif
#ifdef CAIRO_HAS_QUARTZ_SURFACE
#include "gfxQuartzSurface.h"
#include "gfxQuartzImageSurface.h"
#endif
#ifdef MOZ_DFB
#include "gfxDirectFBSurface.h"
#endif
#if defined(CAIRO_HAS_QT_SURFACE) && defined(MOZ_WIDGET_QT)
#include "gfxQPainterSurface.h"
#endif
#include <stdio.h>
#include <limits.h>
static cairo_user_data_key_t gfxasurface_pointer_key;
// Surfaces use refcounting that's tied to the cairo surface refcnt, to avoid
// refcount mismatch issues.
nsrefcnt
gfxASurface::AddRef(void)
{
if (mSurfaceValid) {
if (mFloatingRefs) {
// eat a floating ref
mFloatingRefs--;
} else {
cairo_surface_reference(mSurface);
}
return (nsrefcnt) cairo_surface_get_reference_count(mSurface);
} else {
// the surface isn't valid, but we still need to refcount
// the gfxASurface
return ++mFloatingRefs;
}
}
nsrefcnt
gfxASurface::Release(void)
{
if (mSurfaceValid) {
NS_ASSERTION(mFloatingRefs == 0, "gfxASurface::Release with floating refs still hanging around!");
// Note that there is a destructor set on user data for mSurface,
// which will delete this gfxASurface wrapper when the surface's refcount goes
// out of scope.
nsrefcnt refcnt = (nsrefcnt) cairo_surface_get_reference_count(mSurface);
cairo_surface_destroy(mSurface);
// |this| may not be valid any more, don't use it!
return --refcnt;
} else {
if (--mFloatingRefs == 0) {
delete this;
return 0;
}
return mFloatingRefs;
}
}
void
gfxASurface::SurfaceDestroyFunc(void *data) {
gfxASurface *surf = (gfxASurface*) data;
// fprintf (stderr, "Deleting wrapper for %p (wrapper: %p)\n", surf->mSurface, data);
delete surf;
}
gfxASurface*
gfxASurface::GetSurfaceWrapper(cairo_surface_t *csurf)
{
return (gfxASurface*) cairo_surface_get_user_data(csurf, &gfxasurface_pointer_key);
}
void
gfxASurface::SetSurfaceWrapper(cairo_surface_t *csurf, gfxASurface *asurf)
{
cairo_surface_set_user_data(csurf, &gfxasurface_pointer_key, asurf, SurfaceDestroyFunc);
}
already_AddRefed<gfxASurface>
gfxASurface::Wrap (cairo_surface_t *csurf)
{
gfxASurface *result;
/* Do we already have a wrapper for this surface? */
result = GetSurfaceWrapper(csurf);
if (result) {
// fprintf(stderr, "Existing wrapper for %p -> %p\n", csurf, result);
NS_ADDREF(result);
return result;
}
/* No wrapper; figure out the surface type and create it */
cairo_surface_type_t stype = cairo_surface_get_type(csurf);
if (stype == CAIRO_SURFACE_TYPE_IMAGE) {
result = new gfxImageSurface(csurf);
}
#ifdef CAIRO_HAS_WIN32_SURFACE
else if (stype == CAIRO_SURFACE_TYPE_WIN32 ||
stype == CAIRO_SURFACE_TYPE_WIN32_PRINTING) {
result = new gfxWindowsSurface(csurf);
}
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
else if (stype == CAIRO_SURFACE_TYPE_D2D) {
result = new gfxD2DSurface(csurf);
}
#endif
#ifdef MOZ_X11
else if (stype == CAIRO_SURFACE_TYPE_XLIB) {
result = new gfxXlibSurface(csurf);
}
#endif
#ifdef CAIRO_HAS_QUARTZ_SURFACE
else if (stype == CAIRO_SURFACE_TYPE_QUARTZ) {
result = new gfxQuartzSurface(csurf);
}
else if (stype == CAIRO_SURFACE_TYPE_QUARTZ_IMAGE) {
result = new gfxQuartzImageSurface(csurf);
}
#endif
#ifdef MOZ_DFB
else if (stype == CAIRO_SURFACE_TYPE_DIRECTFB) {
result = new gfxDirectFBSurface(csurf);
}
#endif
#if defined(CAIRO_HAS_QT_SURFACE) && defined(MOZ_WIDGET_QT)
else if (stype == CAIRO_SURFACE_TYPE_QT) {
result = new gfxQPainterSurface(csurf);
}
#endif
else {
result = new gfxUnknownSurface(csurf);
}
// fprintf(stderr, "New wrapper for %p -> %p\n", csurf, result);
NS_ADDREF(result);
return result;
}
void
gfxASurface::Init(cairo_surface_t* surface, PRBool existingSurface)
{
if (cairo_surface_status(surface)) {
// the surface has an error on it
mSurfaceValid = PR_FALSE;
cairo_surface_destroy(surface);
return;
}
SetSurfaceWrapper(surface, this);
mSurface = surface;
mSurfaceValid = PR_TRUE;
if (existingSurface) {
mFloatingRefs = 0;
} else {
mFloatingRefs = 1;
if (cairo_surface_get_content(surface) != CAIRO_CONTENT_COLOR) {
cairo_surface_set_subpixel_antialiasing(surface, CAIRO_SUBPIXEL_ANTIALIASING_DISABLED);
}
}
}
gfxASurface::gfxSurfaceType
gfxASurface::GetType() const
{
if (!mSurfaceValid)
return (gfxSurfaceType)-1;
return (gfxSurfaceType)cairo_surface_get_type(mSurface);
}
gfxASurface::gfxContentType
gfxASurface::GetContentType() const
{
if (!mSurfaceValid)
return (gfxContentType)-1;
return (gfxContentType)cairo_surface_get_content(mSurface);
}
void
gfxASurface::SetDeviceOffset(const gfxPoint& offset)
{
cairo_surface_set_device_offset(mSurface,
offset.x, offset.y);
}
gfxPoint
gfxASurface::GetDeviceOffset() const
{
gfxPoint pt;
cairo_surface_get_device_offset(mSurface, &pt.x, &pt.y);
return pt;
}
void
gfxASurface::Flush() const
{
cairo_surface_flush(mSurface);
}
void
gfxASurface::MarkDirty()
{
cairo_surface_mark_dirty(mSurface);
}
void
gfxASurface::MarkDirty(const gfxRect& r)
{
cairo_surface_mark_dirty_rectangle(mSurface,
(int) r.pos.x, (int) r.pos.y,
(int) r.size.width, (int) r.size.height);
}
void
gfxASurface::SetData(const cairo_user_data_key_t *key,
void *user_data,
thebes_destroy_func_t destroy)
{
cairo_surface_set_user_data(mSurface, key, user_data, destroy);
}
void *
gfxASurface::GetData(const cairo_user_data_key_t *key)
{
return cairo_surface_get_user_data(mSurface, key);
}
void
gfxASurface::Finish()
{
cairo_surface_finish(mSurface);
}
already_AddRefed<gfxASurface>
gfxASurface::CreateSimilarSurface(gfxContentType aContent,
const gfxIntSize& aSize)
{
if (!mSurface || !mSurfaceValid) {
return nsnull;
}
cairo_surface_t *surface =
cairo_surface_create_similar(mSurface, cairo_content_t(aContent),
aSize.width, aSize.height);
if (cairo_surface_status(surface)) {
cairo_surface_destroy(surface);
return nsnull;
}
nsRefPtr<gfxASurface> result = Wrap(surface);
cairo_surface_destroy(surface);
return result.forget();
}
int
gfxASurface::CairoStatus()
{
if (!mSurfaceValid)
return -1;
return cairo_surface_status(mSurface);
}
/* static */
PRBool
gfxASurface::CheckSurfaceSize(const gfxIntSize& sz, PRInt32 limit)
{
if (sz.width < 0 || sz.height < 0) {
NS_WARNING("Surface width or height < 0!");
return PR_FALSE;
}
#if defined(XP_MACOSX)
// CoreGraphics is limited to images < 32K in *height*, so clamp all surfaces on the Mac to that height
if (sz.height > SHRT_MAX) {
NS_WARNING("Surface size too large (would overflow)!");
return PR_FALSE;
}
#endif
// check to make sure we don't overflow a 32-bit
PRInt32 tmp = sz.width * sz.height;
if (tmp && tmp / sz.height != sz.width) {
NS_WARNING("Surface size too large (would overflow)!");
return PR_FALSE;
}
// always assume 4-byte stride
tmp = tmp * 4;
if (tmp && tmp / 4 != sz.width * sz.height) {
NS_WARNING("Surface size too large (would overflow)!");
return PR_FALSE;
}
// reject images with sides bigger than limit
if (limit &&
(sz.width > limit || sz.height > limit))
return PR_FALSE;
return PR_TRUE;
}
nsresult
gfxASurface::BeginPrinting(const nsAString& aTitle, const nsAString& aPrintToFileName)
{
return NS_OK;
}
nsresult
gfxASurface::EndPrinting()
{
return NS_OK;
}
nsresult
gfxASurface::AbortPrinting()
{
return NS_OK;
}
nsresult
gfxASurface::BeginPage()
{
return NS_OK;
}
nsresult
gfxASurface::EndPage()
{
return NS_OK;
}
gfxASurface::gfxContentType
gfxASurface::ContentFromFormat(gfxImageFormat format)
{
switch (format) {
case ImageFormatARGB32:
return CONTENT_COLOR_ALPHA;
case ImageFormatRGB24:
case ImageFormatRGB16_565:
return CONTENT_COLOR;
case ImageFormatA8:
case ImageFormatA1:
return CONTENT_ALPHA;
case ImageFormatUnknown:
default:
return CONTENT_COLOR;
}
}
gfxASurface::gfxImageFormat
gfxASurface::FormatFromContent(gfxASurface::gfxContentType type)
{
switch (type) {
case CONTENT_COLOR_ALPHA:
return ImageFormatARGB32;
case CONTENT_ALPHA:
return ImageFormatA8;
case CONTENT_COLOR:
default:
return ImageFormatRGB24;
}
}
void
gfxASurface::SetSubpixelAntialiasingEnabled(PRBool aEnabled)
{
if (!mSurfaceValid)
return;
cairo_surface_set_subpixel_antialiasing(mSurface,
aEnabled ? CAIRO_SUBPIXEL_ANTIALIASING_ENABLED : CAIRO_SUBPIXEL_ANTIALIASING_DISABLED);
}
PRBool
gfxASurface::GetSubpixelAntialiasingEnabled()
{
if (!mSurfaceValid)
return PR_FALSE;
return cairo_surface_get_subpixel_antialiasing(mSurface) == CAIRO_SUBPIXEL_ANTIALIASING_ENABLED;
}
PRInt32
gfxASurface::BytePerPixelFromFormat(gfxImageFormat format)
{
switch (format) {
case ImageFormatARGB32:
case ImageFormatRGB24:
return 4;
case ImageFormatRGB16_565:
return 2;
case ImageFormatA8:
return 1;
default:
NS_WARNING("Unknown byte per pixel value for Image format");
}
return 0;
}
/** Memory reporting **/
static const char *sSurfaceNamesForSurfaceType[] = {
"gfx/surface/image",
"gfx/surface/pdf",
"gfx/surface/ps",
"gfx/surface/xlib",
"gfx/surface/xcb",
"gfx/surface/glitz",
"gfx/surface/quartz",
"gfx/surface/win32",
"gfx/surface/beos",
"gfx/surface/directfb",
"gfx/surface/svg",
"gfx/surface/os2",
"gfx/surface/win32printing",
"gfx/surface/quartzimage",
"gfx/surface/script",
"gfx/surface/qpainter",
"gfx/surface/recording",
"gfx/surface/vg",
"gfx/surface/gl",
"gfx/surface/drm",
"gfx/surface/tee",
"gfx/surface/xml",
"gfx/surface/skia",
"gfx/surface/d2d"
};
PR_STATIC_ASSERT(NS_ARRAY_LENGTH(sSurfaceNamesForSurfaceType) == gfxASurface::SurfaceTypeMax);
#ifdef CAIRO_HAS_D2D_SURFACE
PR_STATIC_ASSERT(PRUint32(CAIRO_SURFACE_TYPE_D2D) == PRUint32(gfxASurface::SurfaceTypeD2D));
#endif
PR_STATIC_ASSERT(PRUint32(CAIRO_SURFACE_TYPE_SKIA) == PRUint32(gfxASurface::SurfaceTypeSkia));
static const char *
SurfaceMemoryReporterPathForType(gfxASurface::gfxSurfaceType aType)
{
if (aType < 0 ||
aType >= gfxASurface::SurfaceTypeMax)
return "gfx/surface/unknown";
return sSurfaceNamesForSurfaceType[aType];
}
/* Surface size memory reporting */
static nsIMemoryReporter *gSurfaceMemoryReporters[gfxASurface::SurfaceTypeMax] = { 0 };
static PRInt64 gSurfaceMemoryUsed[gfxASurface::SurfaceTypeMax] = { 0 };
class SurfaceMemoryReporter :
public nsIMemoryReporter
{
public:
SurfaceMemoryReporter(gfxASurface::gfxSurfaceType aType)
: mType(aType)
{ }
NS_DECL_ISUPPORTS
NS_IMETHOD GetPath(char **memoryPath) {
*memoryPath = strdup(SurfaceMemoryReporterPathForType(mType));
return NS_OK;
}
NS_IMETHOD GetDescription(char **desc) {
*desc = strdup("Memory used by gfx surface of given type.");
return NS_OK;
}
NS_IMETHOD GetMemoryUsed(PRInt64 *memoryUsed) {
*memoryUsed = gSurfaceMemoryUsed[mType];
return NS_OK;
}
gfxASurface::gfxSurfaceType mType;
};
NS_IMPL_ISUPPORTS1(SurfaceMemoryReporter, nsIMemoryReporter)
void
gfxASurface::RecordMemoryUsedForSurfaceType(gfxASurface::gfxSurfaceType aType,
PRInt32 aBytes)
{
if (aType < 0 || aType >= SurfaceTypeMax) {
NS_WARNING("Invalid type to RecordMemoryUsedForSurfaceType!");
return;
}
if (gSurfaceMemoryReporters[aType] == 0) {
gSurfaceMemoryReporters[aType] = new SurfaceMemoryReporter(aType);
NS_RegisterMemoryReporter(gSurfaceMemoryReporters[aType]);
}
gSurfaceMemoryUsed[aType] += aBytes;
}
void
gfxASurface::RecordMemoryUsed(PRInt32 aBytes)
{
RecordMemoryUsedForSurfaceType(GetType(), aBytes);
mBytesRecorded += aBytes;
}
void
gfxASurface::RecordMemoryFreed()
{
if (mBytesRecorded) {
RecordMemoryUsedForSurfaceType(GetType(), -mBytesRecorded);
mBytesRecorded = 0;
}
}
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