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Diffstat (limited to '')
| -rw-r--r-- | gfx/thebes/gfxASurface.cpp | 503 |
1 files changed, 503 insertions, 0 deletions
diff --git a/gfx/thebes/gfxASurface.cpp b/gfx/thebes/gfxASurface.cpp new file mode 100644 index 0000000000..f77c836fb9 --- /dev/null +++ b/gfx/thebes/gfxASurface.cpp @@ -0,0 +1,503 @@ +/* -*- 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 "nsIMemoryReporter.h" +#include "mozilla/ArrayUtils.h" +#include "mozilla/Base64.h" +#include "mozilla/CheckedInt.h" +#include "mozilla/Attributes.h" +#include "mozilla/MemoryReporting.h" +#include "nsISupportsImpl.h" +#include "mozilla/gfx/2D.h" +#include "mozilla/gfx/Logging.h" +#include "mozilla/gfx/HelpersCairo.h" +#include "gfx2DGlue.h" + +#include "gfxASurface.h" +#include "gfxContext.h" +#include "gfxImageSurface.h" +#include "gfxPlatform.h" +#include "gfxRect.h" + +#include "cairo.h" +#include <algorithm> + +#ifdef CAIRO_HAS_WIN32_SURFACE +# include "gfxWindowsSurface.h" +#endif + +#ifdef MOZ_X11 +# include "gfxXlibSurface.h" +#endif + +#ifdef CAIRO_HAS_QUARTZ_SURFACE +# include "gfxQuartzSurface.h" +#endif + +#include <stdio.h> +#include <limits.h> + +#include "nsComponentManagerUtils.h" +#include "nsISupportsUtils.h" +#include "nsCOMPtr.h" +#include "nsServiceManagerUtils.h" +#include "nsString.h" + +using namespace mozilla; +using namespace mozilla::gfx; + +static cairo_user_data_key_t gfxasurface_pointer_key; + +gfxASurface::gfxASurface() + : mSurface(nullptr), + mFloatingRefs(0), + mBytesRecorded(0), + mSurfaceValid(false) { + MOZ_COUNT_CTOR(gfxASurface); +} + +gfxASurface::~gfxASurface() { + RecordMemoryFreed(); + + MOZ_COUNT_DTOR(gfxASurface); +} + +// 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); + } + // 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; + } + 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) { + if (!csurf) return nullptr; + return (gfxASurface*)cairo_surface_get_user_data(csurf, + &gfxasurface_pointer_key); +} + +void gfxASurface::SetSurfaceWrapper(cairo_surface_t* csurf, + gfxASurface* asurf) { + if (!csurf) return; + cairo_surface_set_user_data(csurf, &gfxasurface_pointer_key, asurf, + SurfaceDestroyFunc); +} + +already_AddRefed<gfxASurface> gfxASurface::Wrap(cairo_surface_t* csurf, + const IntSize& aSize) { + RefPtr<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); + return result.forget(); + } + + /* 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 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, aSize); + } +#endif + else { + result = new gfxUnknownSurface(csurf, aSize); + } + + // fprintf(stderr, "New wrapper for %p -> %p\n", csurf, result); + + return result.forget(); +} + +void gfxASurface::Init(cairo_surface_t* surface, bool existingSurface) { + SetSurfaceWrapper(surface, this); + MOZ_ASSERT(surface, "surface should be a valid pointer"); + + mSurface = surface; + mSurfaceValid = !cairo_surface_status(surface); + if (!mSurfaceValid) { + gfxWarning() << "ASurface Init failed with Cairo status " + << cairo_surface_status(surface) << " on " << hexa(surface); + } + + if (existingSurface || !mSurfaceValid) { + mFloatingRefs = 0; + } else { + mFloatingRefs = 1; + if (cairo_surface_get_content(surface) != CAIRO_CONTENT_COLOR) { + cairo_surface_set_subpixel_antialiasing( + surface, CAIRO_SUBPIXEL_ANTIALIASING_DISABLED); + } + } +} + +gfxSurfaceType gfxASurface::GetType() const { + if (!mSurfaceValid) return (gfxSurfaceType)-1; + + return (gfxSurfaceType)cairo_surface_get_type(mSurface); +} + +gfxContentType gfxASurface::GetContentType() const { + if (!mSurfaceValid) return (gfxContentType)-1; + + return (gfxContentType)cairo_surface_get_content(mSurface); +} + +void gfxASurface::SetDeviceOffset(const gfxPoint& offset) { + if (!mSurfaceValid) return; + cairo_surface_set_device_offset(mSurface, offset.x, offset.y); +} + +gfxPoint gfxASurface::GetDeviceOffset() const { + if (!mSurfaceValid) return gfxPoint(0.0, 0.0); + gfxPoint pt; + cairo_surface_get_device_offset(mSurface, &pt.x.value, &pt.y.value); + return pt; +} + +void gfxASurface::Flush() const { + if (!mSurfaceValid) return; + cairo_surface_flush(mSurface); + gfxPlatform::ClearSourceSurfaceForSurface(const_cast<gfxASurface*>(this)); +} + +void gfxASurface::MarkDirty() { + if (!mSurfaceValid) return; + cairo_surface_mark_dirty(mSurface); + gfxPlatform::ClearSourceSurfaceForSurface(this); +} + +void gfxASurface::MarkDirty(const gfxRect& r) { + if (!mSurfaceValid) return; + cairo_surface_mark_dirty_rectangle(mSurface, (int)r.X(), (int)r.Y(), + (int)r.Width(), (int)r.Height()); + gfxPlatform::ClearSourceSurfaceForSurface(this); +} + +void gfxASurface::SetData(const cairo_user_data_key_t* key, void* user_data, + thebes_destroy_func_t destroy) { + if (!mSurfaceValid) return; + cairo_surface_set_user_data(mSurface, key, user_data, destroy); +} + +void* gfxASurface::GetData(const cairo_user_data_key_t* key) { + if (!mSurfaceValid) return nullptr; + return cairo_surface_get_user_data(mSurface, key); +} + +void gfxASurface::Finish() { + // null surfaces are allowed here + cairo_surface_finish(mSurface); +} + +already_AddRefed<gfxImageSurface> gfxASurface::CopyToARGB32ImageSurface() { + if (!mSurface || !mSurfaceValid) { + return nullptr; + } + + const IntSize size = GetSize(); + RefPtr<gfxImageSurface> imgSurface = + new gfxImageSurface(size, SurfaceFormat::A8R8G8B8_UINT32); + + RefPtr<DrawTarget> dt = gfxPlatform::CreateDrawTargetForSurface( + imgSurface, IntSize(size.width, size.height)); + RefPtr<SourceSurface> source = + gfxPlatform::GetSourceSurfaceForSurface(dt, this); + + dt->CopySurface(source, IntRect(0, 0, size.width, size.height), IntPoint()); + + return imgSurface.forget(); +} + +int gfxASurface::CairoStatus() { + if (!mSurfaceValid) return -1; + + return cairo_surface_status(mSurface); +} + +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; } + +gfxContentType gfxASurface::ContentFromFormat(gfxImageFormat format) { + switch (format) { + case SurfaceFormat::A8R8G8B8_UINT32: + return gfxContentType::COLOR_ALPHA; + case SurfaceFormat::X8R8G8B8_UINT32: + case SurfaceFormat::R5G6B5_UINT16: + return gfxContentType::COLOR; + case SurfaceFormat::A8: + return gfxContentType::ALPHA; + + case SurfaceFormat::UNKNOWN: + default: + return gfxContentType::COLOR; + } +} + +int32_t gfxASurface::BytePerPixelFromFormat(gfxImageFormat format) { + switch (format) { + case SurfaceFormat::A8R8G8B8_UINT32: + case SurfaceFormat::X8R8G8B8_UINT32: + return 4; + case SurfaceFormat::R5G6B5_UINT16: + return 2; + case SurfaceFormat::A8: + return 1; + default: + NS_WARNING("Unknown byte per pixel value for Image format"); + } + return 0; +} + +/** Memory reporting **/ + +static const char* sDefaultSurfaceDescription = + "Memory used by gfx surface of the given type."; + +struct SurfaceMemoryReporterAttrs { + const char* path; + const char* description; +}; + +static const SurfaceMemoryReporterAttrs sSurfaceMemoryReporterAttrs[] = { + {"gfx-surface-image", nullptr}, + {"gfx-surface-pdf", nullptr}, + {"gfx-surface-ps", nullptr}, + {"gfx-surface-xlib", + "Memory used by xlib surfaces to store pixmaps. This memory lives in " + "the X server's process rather than in this application, so the bytes " + "accounted for here aren't counted in vsize, resident, explicit, or any " + "of " + "the other measurements on this page."}, + {"gfx-surface-xcb", nullptr}, + {"gfx-surface-glitz???", nullptr}, // should never be used + {"gfx-surface-quartz", nullptr}, + {"gfx-surface-win32", nullptr}, + {"gfx-surface-beos", nullptr}, + {"gfx-surface-directfb???", nullptr}, // should never be used + {"gfx-surface-svg", nullptr}, + {"gfx-surface-os2", nullptr}, + {"gfx-surface-win32printing", nullptr}, + {"gfx-surface-quartzimage", nullptr}, + {"gfx-surface-script", nullptr}, + {"gfx-surface-qpainter", nullptr}, + {"gfx-surface-recording", nullptr}, + {"gfx-surface-vg", nullptr}, + {"gfx-surface-gl", nullptr}, + {"gfx-surface-drm", nullptr}, + {"gfx-surface-tee", nullptr}, + {"gfx-surface-xml", nullptr}, + {"gfx-surface-skia", nullptr}, + {"gfx-surface-subsurface", nullptr}, +}; + +static_assert(MOZ_ARRAY_LENGTH(sSurfaceMemoryReporterAttrs) == + size_t(gfxSurfaceType::Max), + "sSurfaceMemoryReporterAttrs exceeds max capacity"); +static_assert(uint32_t(CAIRO_SURFACE_TYPE_SKIA) == + uint32_t(gfxSurfaceType::Skia), + "CAIRO_SURFACE_TYPE_SKIA not equal to gfxSurfaceType::Skia"); + +/* Surface size memory reporting */ + +class SurfaceMemoryReporter final : public nsIMemoryReporter { + ~SurfaceMemoryReporter() = default; + + // We can touch this array on several different threads, and we don't + // want to introduce memory barriers when recording the memory used. To + // assure dynamic race checkers like TSan that this is OK, we use + // relaxed memory ordering here. + static Atomic<size_t, Relaxed> + sSurfaceMemoryUsed[size_t(gfxSurfaceType::Max)]; + + public: + static void AdjustUsedMemory(gfxSurfaceType aType, int32_t aBytes) { + // A read-modify-write operation like += would require a memory barrier + // here, which would defeat the purpose of using relaxed memory + // ordering. So separate out the read and write operations. + sSurfaceMemoryUsed[size_t(aType)] = + sSurfaceMemoryUsed[size_t(aType)] + aBytes; + }; + + // This memory reporter is sometimes allocated on the compositor thread, + // but always released on the main thread, so its refcounting needs to be + // threadsafe. + NS_DECL_THREADSAFE_ISUPPORTS + + NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, + nsISupports* aData, bool aAnonymize) override { + const size_t len = ArrayLength(sSurfaceMemoryReporterAttrs); + for (size_t i = 0; i < len; i++) { + int64_t amount = sSurfaceMemoryUsed[i]; + + if (amount != 0) { + const char* path = sSurfaceMemoryReporterAttrs[i].path; + const char* desc = sSurfaceMemoryReporterAttrs[i].description; + if (!desc) { + desc = sDefaultSurfaceDescription; + } + + aHandleReport->Callback(""_ns, nsCString(path), KIND_OTHER, UNITS_BYTES, + amount, nsCString(desc), aData); + } + } + + return NS_OK; + } +}; + +Atomic<size_t, Relaxed> + SurfaceMemoryReporter::sSurfaceMemoryUsed[size_t(gfxSurfaceType::Max)]; + +NS_IMPL_ISUPPORTS(SurfaceMemoryReporter, nsIMemoryReporter) + +void gfxASurface::RecordMemoryUsedForSurfaceType(gfxSurfaceType aType, + int32_t aBytes) { + if (int(aType) < 0 || aType >= gfxSurfaceType::Max) { + NS_WARNING("Invalid type to RecordMemoryUsedForSurfaceType!"); + return; + } + + static bool registered = false; + if (!registered) { + RegisterStrongMemoryReporter(new SurfaceMemoryReporter()); + registered = true; + } + + SurfaceMemoryReporter::AdjustUsedMemory(aType, aBytes); +} + +void gfxASurface::RecordMemoryUsed(int32_t aBytes) { + RecordMemoryUsedForSurfaceType(GetType(), aBytes); + mBytesRecorded += aBytes; +} + +void gfxASurface::RecordMemoryFreed() { + if (mBytesRecorded) { + RecordMemoryUsedForSurfaceType(GetType(), -mBytesRecorded); + mBytesRecorded = 0; + } +} + +size_t gfxASurface::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const { + // We don't measure mSurface because cairo doesn't allow it. + return 0; +} + +size_t gfxASurface::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const { + return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf); +} + +/* static */ +uint8_t gfxASurface::BytesPerPixel(gfxImageFormat aImageFormat) { + switch (aImageFormat) { + case SurfaceFormat::A8R8G8B8_UINT32: + return 4; + case SurfaceFormat::X8R8G8B8_UINT32: + return 4; + case SurfaceFormat::R5G6B5_UINT16: + return 2; + case SurfaceFormat::A8: + return 1; + case SurfaceFormat::UNKNOWN: + default: + MOZ_ASSERT_UNREACHABLE("Not really sure what you want me to say here"); + return 0; + } +} + +void gfxASurface::SetOpaqueRect(const gfxRect& aRect) { + if (aRect.IsEmpty()) { + mOpaqueRect = nullptr; + } else if (!!mOpaqueRect) { + *mOpaqueRect = aRect; + } else { + mOpaqueRect = MakeUnique<gfxRect>(aRect); + } +} + +/* static */ const gfxRect& gfxASurface::GetEmptyOpaqueRect() { + static const gfxRect empty(0, 0, 0, 0); + return empty; +} + +const IntSize gfxASurface::GetSize() const { return IntSize(-1, -1); } + +SurfaceFormat gfxASurface::GetSurfaceFormat() const { + if (!mSurfaceValid) { + return SurfaceFormat::UNKNOWN; + } + return GfxFormatForCairoSurface(mSurface); +} + +already_AddRefed<gfxImageSurface> gfxASurface::GetAsImageSurface() { + return nullptr; +} |