怎么把从SDCard中加载的SkBitmap用SkCanvas绘制出来?我的C++代码如下://绘制一条直线
canv->drawLine(10,150,400,150,*paint);
//绘制图片
SkCanvas* canv = GraphicsJNI::getNativeCanvas(env, canvas);
SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint);
SkBitmap bitmap;
SkFILEStream* stream = new SkFILEStream("/mnt/sdcard/test/test.png");
bool ret = SkImageDecoder::DecodeStream(stream, &bitmap);
if(ret) canv->drawBitmap(bitmap, 10, 180, paint);
绘制直线是绘制成功了的,图片是加载成功了的,但是绘制没有成功,看了些资料,是不是将图片加载为SkBitmap后是不是还需要对得到的SkBitmap进行像素方面的处理啊?怎么进行?谁知到啊?谢谢【焦急等待着】。
canv->drawLine(10,150,400,150,*paint);
//绘制图片
SkCanvas* canv = GraphicsJNI::getNativeCanvas(env, canvas);
SkPaint* paint = GraphicsJNI::getNativePaint(env, jpaint);
SkBitmap bitmap;
SkFILEStream* stream = new SkFILEStream("/mnt/sdcard/test/test.png");
bool ret = SkImageDecoder::DecodeStream(stream, &bitmap);
if(ret) canv->drawBitmap(bitmap, 10, 180, paint);
绘制直线是绘制成功了的,图片是加载成功了的,但是绘制没有成功,看了些资料,是不是将图片加载为SkBitmap后是不是还需要对得到的SkBitmap进行像素方面的处理啊?怎么进行?谁知到啊?谢谢【焦急等待着】。
02-19 11:50:48.889: I/DEBUG(2610): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 42c8001c
03-02 13:23:59.929: I/DEBUG(17177): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
03-02 13:23:59.929: I/DEBUG(17177): Build fingerprint: 'samsung/libra_galaxys2/galaxys2:2.3.7/MIUI/2.2.24:userdebug/test-keys'
03-02 13:23:59.929: I/DEBUG(17177): pid: 31611, tid: 31611 >>> com.whtr.example.skiademo <<<
03-02 13:23:59.929: I/DEBUG(17177): signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 4120001c
03-02 13:23:59.929: I/DEBUG(17177): r0 001ae338 r1 bef7f3d0 r2 41200000 r3 43480000
03-02 13:23:59.929: I/DEBUG(17177): r4 ab16d218 r5 001ae338 r6 bef7f3d0 r7 00099028
03-02 13:23:59.929: I/DEBUG(17177): r8 bef7f418 r9 4428c534 10 0000abe0 fp aca9f374
03-02 13:23:59.929: I/DEBUG(17177): ip afa03108 sp bef7f3a4 lr 80601e9d pc ab16d21c cpsr 60000010
03-02 13:23:59.929: I/DEBUG(17177): d0 6d74696220676e70 d1 69666e6f435f3868
03-02 13:23:59.929: I/DEBUG(17177): d2 6563637573205d69 d3 2e2e2e2e2e2e7373
03-02 13:23:59.929: I/DEBUG(17177): d4 0000000000000000 d5 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d6 0000000000000000 d7 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d8 0000000000000000 d9 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d10 0000000000000000 d11 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d12 0000000000000000 d13 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d14 0000000000000000 d15 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d16 0000000000000000 d17 ff00ff00ff00ff00
03-02 13:23:59.929: I/DEBUG(17177): d18 4034000000000000 d19 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d20 3ff0000000000000 d21 c034000000000000
03-02 13:23:59.929: I/DEBUG(17177): d22 8000000000000000 d23 0000000000000000
03-02 13:23:59.929: I/DEBUG(17177): d24 0000000000000000 d25 3ff0000000000000
03-02 13:23:59.929: I/DEBUG(17177): d26 4034000000000000 d27 4061400000000000
03-02 13:23:59.929: I/DEBUG(17177): d28 0000000000000000 d29 3ff0000000000000
03-02 13:23:59.929: I/DEBUG(17177): d30 3ff0000000000000 d31 8000000000000000
03-02 13:23:59.929: I/DEBUG(17177): scr 20000010
03-02 13:23:59.994: I/AlarmManager(2714): wakelock acquire, uid:1000 at elapsed real time: 90785444
03-02 13:24:00.019: I/AlarmManager(2714): wakelock release, uid:1000 at elapsed real time: 90785471
03-02 13:24:00.069: I/DEBUG(17177): #00 pc 0006d21c /system/lib/libskia.so (_ZN8SkCanvas8drawRectERK6SkRectRK7SkPaint)
03-02 13:24:00.069: I/DEBUG(17177): #01 lr 80601e9d /data/data/com.whtr.example.skiademo/lib/libSkiaDemo.so
03-02 13:24:00.069: I/DEBUG(17177): code around pc:
03-02 13:24:00.069: I/DEBUG(17177): ab16d1fc e28d2038 eb003e26 e1a01000 eaffff6b
03-02 13:24:00.069: I/DEBUG(17177): ab16d20c e1a00005 eb004ce9 eaffff64 e92d4ff0
03-02 13:24:00.069: I/DEBUG(17177): ab16d21c e592c01c e5925024 e592a028 e1a04002
03-02 13:24:00.069: I/DEBUG(17177): ab16d22c e1a07000 e5922010 e18a000c e24dd04c
03-02 13:24:00.069: I/DEBUG(17177): ab16d23c e1853000 e1a05001 e1922003 1a00000a
03-02 13:24:00.069: I/DEBUG(17177): code around lr:
03-02 13:24:00.069: I/DEBUG(17177): 80601e7c 682bee2c 92002200 0200f240 46314628
03-02 13:24:00.069: I/DEBUG(17177): 80601e8c f2406cdc f2c40300 f2c43348 47a01220
03-02 13:24:00.069: I/DEBUG(17177): 80601e9c 4a234922 44792004 f7ff447a 4630ee16
03-02 13:24:00.069: I/DEBUG(17177): 80601eac ee18f7ff f7ff4630 b157edf2 4638683b
03-02 13:24:00.069: I/DEBUG(17177): 80601ebc 4798685b 4a1be005 46212006 f7ff447a
03-02 13:24:00.069: I/DEBUG(17177): stack:
03-02 13:24:00.069: I/DEBUG(17177): bef7f364 4428c534
03-02 13:24:00.069: I/DEBUG(17177): bef7f368 00099028
03-02 13:24:00.069: I/DEBUG(17177): bef7f36c afd13ba1 /system/lib/libc.so
03-02 13:24:00.069: I/DEBUG(17177): bef7f370 00099040
03-02 13:24:00.069: I/DEBUG(17177): bef7f374 00000001
03-02 13:24:00.069: I/DEBUG(17177): bef7f378 00000006
03-02 13:24:00.069: I/DEBUG(17177): bef7f37c bef7f3d0
03-02 13:24:00.069: I/DEBUG(17177): bef7f380 bef7f3fc
03-02 13:24:00.069: I/DEBUG(17177): bef7f384 afd149e1 /system/lib/libc.so
03-02 13:24:00.069: I/DEBUG(17177): bef7f388 00099040
03-02 13:24:00.069: I/DEBUG(17177): bef7f38c afc009c7 /system/lib/libstdc++.so
03-02 13:24:00.069: I/DEBUG(17177): bef7f390 00099040
03-02 13:24:00.069: I/DEBUG(17177): bef7f394 ab145024 /system/lib/libskia.so
03-02 13:24:00.069: I/DEBUG(17177): bef7f398 df002777
03-02 13:24:00.069: I/DEBUG(17177): bef7f39c e3a070ad
03-02 13:24:00.069: I/DEBUG(17177): bef7f3a0 00000001
03-02 13:24:00.069: I/DEBUG(17177): #00 bef7f3a4 ab16d218 /system/lib/libskia.so
03-02 13:24:00.074: I/DEBUG(17177): bef7f3a8 001ae338
03-02 13:24:00.074: I/DEBUG(17177): bef7f3ac bef7f3d0
03-02 13:24:00.074: I/DEBUG(17177): bef7f3b0 00099028
03-02 13:24:00.074: I/DEBUG(17177): bef7f3b4 bef7f418
03-02 13:24:00.074: I/DEBUG(17177): bef7f3b8 4428c534
03-02 13:24:00.074: I/DEBUG(17177): bef7f3bc 0000abe0
03-02 13:24:00.074: I/DEBUG(17177): bef7f3c0 aca9f374
03-02 13:24:00.074: I/DEBUG(17177): bef7f3c4 80601e9d /data/data/com.whtr.example.skiademo/lib/libSkiaDemo.so
03-02 13:24:00.074: I/DEBUG(17177): bef7f3c8 00000000
03-02 13:24:00.074: I/DEBUG(17177): bef7f3cc 00098f70
03-02 13:24:00.074: I/DEBUG(17177): bef7f3d0 00000000
03-02 13:24:00.074: I/DEBUG(17177): bef7f3d4 00099080
03-02 13:24:00.074: I/DEBUG(17177): bef7f3d8 00000000
03-02 13:24:00.074: I/DEBUG(17177): bef7f3dc 00000001
03-02 13:24:00.074: I/DEBUG(17177): bef7f3e0 001d4980
03-02 13:24:00.074: I/DEBUG(17177): bef7f3e4 00000000
03-02 13:24:00.074: I/DEBUG(17177): bef7f3e8 000000d4
03-02 13:24:00.719: I/BootReceiver(2714): Copying /data/tombstones/tombstone_06 to DropBox (SYSTEM_TOMBSTONE)
03-02 13:24:00.724: I/WindowManager(2714): WIN DEATH: Window{40f96180 com.whtr.example.skiademo/com.whtr.example.skiademo.SkiaDemoActivity paused=false}
03-02 13:24:00.729: I/ActivityManager(2714): Process com.whtr.example.skiademo (pid 31611) has died.