AuroraMiddleware/skia2
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GM: showmiplevels handles bitmap memory in a nicer way.

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This is helpful for those canvas implementations that want to copy a
bitmap.

Review URL: https://codereview.chromium.org/935943007
This commit is contained in:
halcanary 2015-02-24 09:25:09 -08:00 committed by Commit bot
parent 233c6ce41f
commit a1cb378a82
1 changed files with 8 additions and 1 deletions
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9
gm/downsamplebitmap.cpp
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@ -192,6 +192,11 @@ class DownsampleBitmapImageGM: public DownsampleBitmapGM {
};
#include "SkMipMap.h"
static void release_mipmap(void*, void* context) {
((SkMipMap*)context)->unref();
}
class ShowMipLevels : public skiagm::GM {
public:
SkBitmap fBM;
@ -224,7 +229,9 @@ protected:
while (mm->extractLevel(scale, &level)) {
SkImageInfo info = SkImageInfo::MakeN32Premul(level.fWidth, level.fHeight);
SkBitmap bm;
bm.installPixels(info, level.fPixels, level.fRowBytes);
bm.installPixels(info, level.fPixels, level.fRowBytes, NULL,
&release_mipmap, (void*)(SkRef(mm.get())));
bm.setImmutable();
canvas->drawBitmap(bm, x, y, NULL);
y += bm.height() + 4;
scale /= 2;