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Bug 812957 - Add memory reporter for Freetype. r=karlt,jlebar

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This commit is contained in:
Nicholas Nethercote 2012-11-19 22:00:19 -05:00
parent 68027d9249
commit 671d8d20c1
1 changed files with 64 additions and 2 deletions
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66
gfx/thebes/gfxAndroidPlatform.cpp
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@ -19,6 +19,8 @@
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_MODULE_H
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::gfx;
@ -27,9 +29,69 @@ static FT_Library gPlatformFTLibrary = NULL;
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "GeckoFonts" , ## args)
static int64_t sFreetypeMemoryUsed;
static FT_MemoryRec_ sFreetypeMemoryRecord;
static int64_t
GetFreetypeSize()
{
return sFreetypeMemoryUsed;
}
NS_MEMORY_REPORTER_IMPLEMENT(Freetype,
"explicit/freetype",
KIND_HEAP,
UNITS_BYTES,
GetFreetypeSize,
"Memory used by Freetype."
)
NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN(FreetypeMallocSizeOfForCounterInc, "freetype")
NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN_UN(FreetypeMallocSizeOfForCounterDec)
static void
*CountingAlloc(FT_Memory memory, long size)
{
void *p = malloc(size);
sFreetypeMemoryUsed += FreetypeMallocSizeOfForCounterInc(p);
return p;
}
static void
CountingFree(FT_Memory memory, void* p)
{
sFreetypeMemoryUsed -= FreetypeMallocSizeOfForCounterDec(p);
free(p);
}
static void
*CountingRealloc(FT_Memory memory, long cur_size, long new_size, void* p)
{
sFreetypeMemoryUsed -= FreetypeMallocSizeOfForCounterDec(p);
void *pnew = realloc(p, new_size);
if (pnew) {
sFreetypeMemoryUsed += FreetypeMallocSizeOfForCounterInc(pnew);
} else {
// realloc failed; undo the decrement from above
sFreetypeMemoryUsed += FreetypeMallocSizeOfForCounterInc(p);
}
return pnew;
}
gfxAndroidPlatform::gfxAndroidPlatform()
{
FT_Init_FreeType(&gPlatformFTLibrary);
// A custom allocator. It counts allocations, enabling memory reporting.
sFreetypeMemoryRecord.user = nullptr;
sFreetypeMemoryRecord.alloc = CountingAlloc;
sFreetypeMemoryRecord.free = CountingFree;
sFreetypeMemoryRecord.realloc = CountingRealloc;
// These two calls are equivalent to FT_Init_FreeType(), but allow us to
// provide a custom memory allocator.
FT_New_Library(&sFreetypeMemoryRecord, &gPlatformFTLibrary);
FT_Add_Default_Modules(gPlatformFTLibrary);
NS_RegisterMemoryReporter(new NS_MEMORY_REPORTER_NAME(Freetype));
nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1");
nsCOMPtr<nsIScreen> screen;
@ -46,7 +108,7 @@ gfxAndroidPlatform::~gfxAndroidPlatform()
{
cairo_debug_reset_static_data();
FT_Done_FreeType(gPlatformFTLibrary);
FT_Done_Library(gPlatformFTLibrary);
gPlatformFTLibrary = NULL;
}