| #include "SkBitmap.h" |
| #include "SkPixelRef.h" |
| #include "SkImageEncoder.h" |
| #include "SkColorPriv.h" |
| #include "GraphicsJNI.h" |
| #include "SkDither.h" |
| #include "SkUnPreMultiply.h" |
| #include "SkStream.h" |
| |
| #include <binder/Parcel.h> |
| #include "android_os_Parcel.h" |
| #include "android_util_Binder.h" |
| #include "android_nio_utils.h" |
| #include "CreateJavaOutputStreamAdaptor.h" |
| |
| #include <jni.h> |
| |
| #include <Caches.h> |
| |
| #if 0 |
| #define TRACE_BITMAP(code) code |
| #else |
| #define TRACE_BITMAP(code) |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Conversions to/from SkColor, for get/setPixels, and the create method, which |
| // is basically like setPixels |
| |
| typedef void (*FromColorProc)(void* dst, const SkColor src[], int width, |
| int x, int y); |
| |
| static void FromColor_D32(void* dst, const SkColor src[], int width, |
| int, int) { |
| SkPMColor* d = (SkPMColor*)dst; |
| |
| for (int i = 0; i < width; i++) { |
| *d++ = SkPreMultiplyColor(*src++); |
| } |
| } |
| |
| static void FromColor_D32_Raw(void* dst, const SkColor src[], int width, |
| int, int) { |
| // SkColor's ordering may be different from SkPMColor |
| if (SK_COLOR_MATCHES_PMCOLOR_BYTE_ORDER) { |
| memcpy(dst, src, width * sizeof(SkColor)); |
| return; |
| } |
| |
| // order isn't same, repack each pixel manually |
| SkPMColor* d = (SkPMColor*)dst; |
| for (int i = 0; i < width; i++) { |
| SkColor c = *src++; |
| *d++ = SkPackARGB32NoCheck(SkColorGetA(c), SkColorGetR(c), |
| SkColorGetG(c), SkColorGetB(c)); |
| } |
| } |
| |
| static void FromColor_D565(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| uint16_t* d = (uint16_t*)dst; |
| |
| DITHER_565_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkColor c = *src++; |
| *d++ = SkDitherRGBTo565(SkColorGetR(c), SkColorGetG(c), SkColorGetB(c), |
| DITHER_VALUE(x)); |
| } |
| } |
| |
| static void FromColor_D4444(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| SkPMColor16* d = (SkPMColor16*)dst; |
| |
| DITHER_4444_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkPMColor pmc = SkPreMultiplyColor(*src++); |
| *d++ = SkDitherARGB32To4444(pmc, DITHER_VALUE(x)); |
| // *d++ = SkPixel32ToPixel4444(pmc); |
| } |
| } |
| |
| static void FromColor_D4444_Raw(void* dst, const SkColor src[], int width, |
| int x, int y) { |
| SkPMColor16* d = (SkPMColor16*)dst; |
| |
| DITHER_4444_SCAN(y); |
| for (int stop = x + width; x < stop; x++) { |
| SkColor c = *src++; |
| |
| // SkPMColor is used because the ordering is ARGB32, even though the target actually premultiplied |
| SkPMColor pmc = SkPackARGB32NoCheck(SkColorGetA(c), SkColorGetR(c), |
| SkColorGetG(c), SkColorGetB(c)); |
| *d++ = SkDitherARGB32To4444(pmc, DITHER_VALUE(x)); |
| // *d++ = SkPixel32ToPixel4444(pmc); |
| } |
| } |
| |
| // can return NULL |
| static FromColorProc ChooseFromColorProc(SkBitmap::Config config, bool isPremultiplied) { |
| switch (config) { |
| case SkBitmap::kARGB_8888_Config: |
| return isPremultiplied ? FromColor_D32 : FromColor_D32_Raw; |
| case SkBitmap::kARGB_4444_Config: |
| return isPremultiplied ? FromColor_D4444 : FromColor_D4444_Raw; |
| case SkBitmap::kRGB_565_Config: |
| return FromColor_D565; |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| bool GraphicsJNI::SetPixels(JNIEnv* env, jintArray srcColors, int srcOffset, int srcStride, |
| int x, int y, int width, int height, |
| const SkBitmap& dstBitmap, bool isPremultiplied) { |
| SkAutoLockPixels alp(dstBitmap); |
| void* dst = dstBitmap.getPixels(); |
| FromColorProc proc = ChooseFromColorProc(dstBitmap.config(), isPremultiplied); |
| |
| if (NULL == dst || NULL == proc) { |
| return false; |
| } |
| |
| const jint* array = env->GetIntArrayElements(srcColors, NULL); |
| const SkColor* src = (const SkColor*)array + srcOffset; |
| |
| // reset to to actual choice from caller |
| dst = dstBitmap.getAddr(x, y); |
| // now copy/convert each scanline |
| for (int y = 0; y < height; y++) { |
| proc(dst, src, width, x, y); |
| src += srcStride; |
| dst = (char*)dst + dstBitmap.rowBytes(); |
| } |
| |
| dstBitmap.notifyPixelsChanged(); |
| |
| env->ReleaseIntArrayElements(srcColors, const_cast<jint*>(array), |
| JNI_ABORT); |
| return true; |
| } |
| |
| //////////////////// ToColor procs |
| |
| typedef void (*ToColorProc)(SkColor dst[], const void* src, int width, |
| SkColorTable*); |
| |
| static void ToColor_S32_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(*s++); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S32_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| SkPMColor c = *s++; |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S32_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor* s = (const SkPMColor*)src; |
| do { |
| SkPMColor c = *s++; |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(SkPixel4444ToPixel32(*s++)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| SkPMColor c = SkPixel4444ToPixel32(*s++); |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S4444_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const SkPMColor16* s = (const SkPMColor16*)src; |
| do { |
| SkPMColor c = SkPixel4444ToPixel32(*s++); |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_S565(SkColor dst[], const void* src, int width, |
| SkColorTable*) { |
| SkASSERT(width > 0); |
| const uint16_t* s = (const uint16_t*)src; |
| do { |
| uint16_t c = *s++; |
| *dst++ = SkColorSetRGB(SkPacked16ToR32(c), SkPacked16ToG32(c), |
| SkPacked16ToB32(c)); |
| } while (--width != 0); |
| } |
| |
| static void ToColor_SI8_Alpha(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->lockColors(); |
| do { |
| *dst++ = SkUnPreMultiply::PMColorToColor(colors[*s++]); |
| } while (--width != 0); |
| ctable->unlockColors(); |
| } |
| |
| static void ToColor_SI8_Raw(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->lockColors(); |
| do { |
| SkPMColor c = colors[*s++]; |
| *dst++ = SkColorSetARGB(SkGetPackedA32(c), SkGetPackedR32(c), |
| SkGetPackedG32(c), SkGetPackedB32(c)); |
| } while (--width != 0); |
| ctable->unlockColors(); |
| } |
| |
| static void ToColor_SI8_Opaque(SkColor dst[], const void* src, int width, |
| SkColorTable* ctable) { |
| SkASSERT(width > 0); |
| const uint8_t* s = (const uint8_t*)src; |
| const SkPMColor* colors = ctable->lockColors(); |
| do { |
| SkPMColor c = colors[*s++]; |
| *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c), |
| SkGetPackedB32(c)); |
| } while (--width != 0); |
| ctable->unlockColors(); |
| } |
| |
| // can return NULL |
| static ToColorProc ChooseToColorProc(const SkBitmap& src, bool isPremultiplied) { |
| switch (src.config()) { |
| case SkBitmap::kARGB_8888_Config: |
| if (src.isOpaque()) return ToColor_S32_Opaque; |
| return isPremultiplied ? ToColor_S32_Alpha : ToColor_S32_Raw; |
| case SkBitmap::kARGB_4444_Config: |
| if (src.isOpaque()) return ToColor_S4444_Opaque; |
| return isPremultiplied ? ToColor_S4444_Alpha : ToColor_S4444_Raw; |
| case SkBitmap::kRGB_565_Config: |
| return ToColor_S565; |
| case SkBitmap::kIndex8_Config: |
| if (src.getColorTable() == NULL) { |
| return NULL; |
| } |
| if (src.isOpaque()) return ToColor_SI8_Opaque; |
| return isPremultiplied ? ToColor_SI8_Raw : ToColor_SI8_Alpha; |
| default: |
| break; |
| } |
| return NULL; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static int getPremulBitmapCreateFlags(bool isMutable) { |
| int flags = GraphicsJNI::kBitmapCreateFlag_Premultiplied; |
| if (isMutable) flags |= GraphicsJNI::kBitmapCreateFlag_Mutable; |
| return flags; |
| } |
| |
| static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors, |
| jint offset, jint stride, jint width, jint height, |
| jint configHandle, jboolean isMutable) { |
| SkBitmap::Config config = static_cast<SkBitmap::Config>(configHandle); |
| if (NULL != jColors) { |
| size_t n = env->GetArrayLength(jColors); |
| if (n < SkAbs32(stride) * (size_t)height) { |
| doThrowAIOOBE(env); |
| return NULL; |
| } |
| } |
| |
| // ARGB_4444 is a deprecated format, convert automatically to 8888 |
| if (config == SkBitmap::kARGB_4444_Config) { |
| config = SkBitmap::kARGB_8888_Config; |
| } |
| |
| SkBitmap bitmap; |
| bitmap.setConfig(config, width, height); |
| |
| jbyteArray buff = GraphicsJNI::allocateJavaPixelRef(env, &bitmap, NULL); |
| if (NULL == buff) { |
| return NULL; |
| } |
| |
| if (jColors != NULL) { |
| GraphicsJNI::SetPixels(env, jColors, offset, stride, |
| 0, 0, width, height, bitmap, true); |
| } |
| |
| return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), buff, |
| getPremulBitmapCreateFlags(isMutable), NULL, NULL); |
| } |
| |
| static jobject Bitmap_copy(JNIEnv* env, jobject, jlong srcHandle, |
| jint dstConfigHandle, jboolean isMutable) { |
| const SkBitmap* src = reinterpret_cast<SkBitmap*>(srcHandle); |
| SkBitmap::Config dstConfig = static_cast<SkBitmap::Config>(dstConfigHandle); |
| SkBitmap result; |
| JavaPixelAllocator allocator(env); |
| |
| if (!src->copyTo(&result, SkBitmapConfigToColorType(dstConfig), &allocator)) { |
| return NULL; |
| } |
| return GraphicsJNI::createBitmap(env, new SkBitmap(result), allocator.getStorageObj(), |
| getPremulBitmapCreateFlags(isMutable), NULL, NULL); |
| } |
| |
| static void Bitmap_destructor(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| #ifdef USE_OPENGL_RENDERER |
| if (android::uirenderer::Caches::hasInstance()) { |
| android::uirenderer::Caches::getInstance().resourceCache.destructor(bitmap); |
| return; |
| } |
| #endif // USE_OPENGL_RENDERER |
| delete bitmap; |
| } |
| |
| static jboolean Bitmap_recycle(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| #ifdef USE_OPENGL_RENDERER |
| if (android::uirenderer::Caches::hasInstance()) { |
| bool result; |
| result = android::uirenderer::Caches::getInstance().resourceCache.recycle(bitmap); |
| return result ? JNI_TRUE : JNI_FALSE; |
| } |
| #endif // USE_OPENGL_RENDERER |
| bitmap->setPixels(NULL, NULL); |
| return JNI_TRUE; |
| } |
| |
| static void Bitmap_reconfigure(JNIEnv* env, jobject clazz, jlong bitmapHandle, |
| jint width, jint height, jint configHandle, jint allocSize, |
| jboolean requestPremul) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkBitmap::Config config = static_cast<SkBitmap::Config>(configHandle); |
| SkColorType colorType = SkBitmapConfigToColorType(config); |
| |
| // ARGB_4444 is a deprecated format, convert automatically to 8888 |
| if (colorType == kARGB_4444_SkColorType) { |
| colorType = kN32_SkColorType; |
| } |
| |
| if (width * height * SkColorTypeBytesPerPixel(colorType) > allocSize) { |
| // done in native as there's no way to get BytesPerPixel in Java |
| doThrowIAE(env, "Bitmap not large enough to support new configuration"); |
| return; |
| } |
| SkPixelRef* ref = bitmap->pixelRef(); |
| ref->ref(); |
| SkAlphaType alphaType; |
| if (bitmap->colorType() != kRGB_565_SkColorType |
| && bitmap->alphaType() == kOpaque_SkAlphaType) { |
| // If the original bitmap was set to opaque, keep that setting, unless it |
| // was 565, which is required to be opaque. |
| alphaType = kOpaque_SkAlphaType; |
| } else { |
| // Otherwise respect the premultiplied request. |
| alphaType = requestPremul ? kPremul_SkAlphaType : kUnpremul_SkAlphaType; |
| } |
| bitmap->setInfo(SkImageInfo::Make(width, height, colorType, alphaType)); |
| // FIXME: Skia thinks of an SkPixelRef as having a constant SkImageInfo (except for |
| // its alphatype), so it would make more sense from Skia's perspective to create a |
| // new SkPixelRef. That said, libhwui uses the pointer to the SkPixelRef as a key |
| // for its cache, so it won't realize this is the same Java Bitmap. |
| SkImageInfo& info = const_cast<SkImageInfo&>(ref->info()); |
| // Use the updated from the SkBitmap, which may have corrected an invalid alphatype. |
| // (e.g. 565 non-opaque) |
| info = bitmap->info(); |
| bitmap->setPixelRef(ref); |
| |
| // notifyPixelsChanged will increment the generation ID even though the actual pixel data |
| // hasn't been touched. This signals the renderer that the bitmap (including width, height, |
| // colortype and alphatype) has changed. |
| ref->notifyPixelsChanged(); |
| ref->unref(); |
| } |
| |
| // These must match the int values in Bitmap.java |
| enum JavaEncodeFormat { |
| kJPEG_JavaEncodeFormat = 0, |
| kPNG_JavaEncodeFormat = 1, |
| kWEBP_JavaEncodeFormat = 2 |
| }; |
| |
| static jboolean Bitmap_compress(JNIEnv* env, jobject clazz, jlong bitmapHandle, |
| jint format, jint quality, |
| jobject jstream, jbyteArray jstorage) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkImageEncoder::Type fm; |
| |
| switch (format) { |
| case kJPEG_JavaEncodeFormat: |
| fm = SkImageEncoder::kJPEG_Type; |
| break; |
| case kPNG_JavaEncodeFormat: |
| fm = SkImageEncoder::kPNG_Type; |
| break; |
| case kWEBP_JavaEncodeFormat: |
| fm = SkImageEncoder::kWEBP_Type; |
| break; |
| default: |
| return JNI_FALSE; |
| } |
| |
| bool success = false; |
| if (NULL != bitmap) { |
| SkAutoLockPixels alp(*bitmap); |
| |
| if (NULL == bitmap->getPixels()) { |
| return JNI_FALSE; |
| } |
| |
| SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage); |
| if (NULL == strm) { |
| return JNI_FALSE; |
| } |
| |
| SkImageEncoder* encoder = SkImageEncoder::Create(fm); |
| if (NULL != encoder) { |
| success = encoder->encodeStream(strm, *bitmap, quality); |
| delete encoder; |
| } |
| delete strm; |
| } |
| return success ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_erase(JNIEnv* env, jobject, jlong bitmapHandle, jint color) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| bitmap->eraseColor(color); |
| } |
| |
| static jint Bitmap_rowBytes(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| return static_cast<jint>(bitmap->rowBytes()); |
| } |
| |
| static jint Bitmap_config(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| return static_cast<jint>(bitmap->config()); |
| } |
| |
| static jint Bitmap_getGenerationId(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| return static_cast<jint>(bitmap->getGenerationID()); |
| } |
| |
| static jboolean Bitmap_hasAlpha(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| return !bitmap->isOpaque() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_setAlphaAndPremultiplied(JNIEnv* env, jobject, jlong bitmapHandle, |
| jboolean hasAlpha, jboolean isPremul) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| if (!hasAlpha) { |
| bitmap->setAlphaType(kOpaque_SkAlphaType); |
| } else if (isPremul) { |
| bitmap->setAlphaType(kPremul_SkAlphaType); |
| } else { |
| bitmap->setAlphaType(kUnpremul_SkAlphaType); |
| } |
| } |
| |
| static jboolean Bitmap_hasMipMap(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| return bitmap->hasHardwareMipMap() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void Bitmap_setHasMipMap(JNIEnv* env, jobject, jlong bitmapHandle, |
| jboolean hasMipMap) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| bitmap->setHasHardwareMipMap(hasMipMap); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) { |
| if (parcel == NULL) { |
| SkDebugf("-------- unparcel parcel is NULL\n"); |
| return NULL; |
| } |
| |
| android::Parcel* p = android::parcelForJavaObject(env, parcel); |
| |
| const bool isMutable = p->readInt32() != 0; |
| const SkBitmap::Config config = (SkBitmap::Config)p->readInt32(); |
| const int width = p->readInt32(); |
| const int height = p->readInt32(); |
| const int rowBytes = p->readInt32(); |
| const int density = p->readInt32(); |
| |
| if (SkBitmap::kARGB_8888_Config != config && |
| SkBitmap::kRGB_565_Config != config && |
| SkBitmap::kARGB_4444_Config != config && |
| SkBitmap::kIndex8_Config != config && |
| SkBitmap::kA8_Config != config) { |
| SkDebugf("Bitmap_createFromParcel unknown config: %d\n", config); |
| return NULL; |
| } |
| |
| SkBitmap* bitmap = new SkBitmap; |
| |
| bitmap->setConfig(config, width, height, rowBytes); |
| |
| SkColorTable* ctable = NULL; |
| if (config == SkBitmap::kIndex8_Config) { |
| int count = p->readInt32(); |
| if (count > 0) { |
| size_t size = count * sizeof(SkPMColor); |
| const SkPMColor* src = (const SkPMColor*)p->readInplace(size); |
| ctable = new SkColorTable(src, count); |
| } |
| } |
| |
| jbyteArray buffer = GraphicsJNI::allocateJavaPixelRef(env, bitmap, ctable); |
| if (NULL == buffer) { |
| SkSafeUnref(ctable); |
| delete bitmap; |
| return NULL; |
| } |
| |
| SkSafeUnref(ctable); |
| |
| size_t size = bitmap->getSize(); |
| |
| android::Parcel::ReadableBlob blob; |
| android::status_t status = p->readBlob(size, &blob); |
| if (status) { |
| doThrowRE(env, "Could not read bitmap from parcel blob."); |
| delete bitmap; |
| return NULL; |
| } |
| |
| bitmap->lockPixels(); |
| memcpy(bitmap->getPixels(), blob.data(), size); |
| bitmap->unlockPixels(); |
| |
| blob.release(); |
| |
| return GraphicsJNI::createBitmap(env, bitmap, buffer, getPremulBitmapCreateFlags(isMutable), |
| NULL, NULL, density); |
| } |
| |
| static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject, |
| jlong bitmapHandle, |
| jboolean isMutable, jint density, |
| jobject parcel) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| if (parcel == NULL) { |
| SkDebugf("------- writeToParcel null parcel\n"); |
| return JNI_FALSE; |
| } |
| |
| android::Parcel* p = android::parcelForJavaObject(env, parcel); |
| |
| p->writeInt32(isMutable); |
| p->writeInt32(bitmap->config()); |
| p->writeInt32(bitmap->width()); |
| p->writeInt32(bitmap->height()); |
| p->writeInt32(bitmap->rowBytes()); |
| p->writeInt32(density); |
| |
| if (bitmap->config() == SkBitmap::kIndex8_Config) { |
| SkColorTable* ctable = bitmap->getColorTable(); |
| if (ctable != NULL) { |
| int count = ctable->count(); |
| p->writeInt32(count); |
| memcpy(p->writeInplace(count * sizeof(SkPMColor)), |
| ctable->lockColors(), count * sizeof(SkPMColor)); |
| ctable->unlockColors(); |
| } else { |
| p->writeInt32(0); // indicate no ctable |
| } |
| } |
| |
| size_t size = bitmap->getSize(); |
| |
| android::Parcel::WritableBlob blob; |
| android::status_t status = p->writeBlob(size, &blob); |
| if (status) { |
| doThrowRE(env, "Could not write bitmap to parcel blob."); |
| return JNI_FALSE; |
| } |
| |
| bitmap->lockPixels(); |
| const void* pSrc = bitmap->getPixels(); |
| if (pSrc == NULL) { |
| memset(blob.data(), 0, size); |
| } else { |
| memcpy(blob.data(), pSrc, size); |
| } |
| bitmap->unlockPixels(); |
| |
| blob.release(); |
| return JNI_TRUE; |
| } |
| |
| static jobject Bitmap_extractAlpha(JNIEnv* env, jobject clazz, |
| jlong srcHandle, jlong paintHandle, |
| jintArray offsetXY) { |
| const SkBitmap* src = reinterpret_cast<SkBitmap*>(srcHandle); |
| const SkPaint* paint = reinterpret_cast<SkPaint*>(paintHandle); |
| SkIPoint offset; |
| SkBitmap* dst = new SkBitmap; |
| JavaPixelAllocator allocator(env); |
| |
| src->extractAlpha(dst, paint, &allocator, &offset); |
| // If Skia can't allocate pixels for destination bitmap, it resets |
| // it, that is set its pixels buffer to NULL, and zero width and height. |
| if (dst->getPixels() == NULL && src->getPixels() != NULL) { |
| delete dst; |
| doThrowOOME(env, "failed to allocate pixels for alpha"); |
| return NULL; |
| } |
| if (offsetXY != 0 && env->GetArrayLength(offsetXY) >= 2) { |
| int* array = env->GetIntArrayElements(offsetXY, NULL); |
| array[0] = offset.fX; |
| array[1] = offset.fY; |
| env->ReleaseIntArrayElements(offsetXY, array, 0); |
| } |
| |
| return GraphicsJNI::createBitmap(env, dst, allocator.getStorageObj(), |
| getPremulBitmapCreateFlags(true), NULL, NULL); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jint Bitmap_getPixel(JNIEnv* env, jobject, jlong bitmapHandle, |
| jint x, jint y, jboolean isPremultiplied) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkAutoLockPixels alp(*bitmap); |
| |
| ToColorProc proc = ChooseToColorProc(*bitmap, isPremultiplied); |
| if (NULL == proc) { |
| return 0; |
| } |
| const void* src = bitmap->getAddr(x, y); |
| if (NULL == src) { |
| return 0; |
| } |
| |
| SkColor dst[1]; |
| proc(dst, src, 1, bitmap->getColorTable()); |
| return static_cast<jint>(dst[0]); |
| } |
| |
| static void Bitmap_getPixels(JNIEnv* env, jobject, jlong bitmapHandle, |
| jintArray pixelArray, jint offset, jint stride, |
| jint x, jint y, jint width, jint height, jboolean isPremultiplied) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkAutoLockPixels alp(*bitmap); |
| |
| ToColorProc proc = ChooseToColorProc(*bitmap, isPremultiplied); |
| if (NULL == proc) { |
| return; |
| } |
| const void* src = bitmap->getAddr(x, y); |
| if (NULL == src) { |
| return; |
| } |
| |
| SkColorTable* ctable = bitmap->getColorTable(); |
| jint* dst = env->GetIntArrayElements(pixelArray, NULL); |
| SkColor* d = (SkColor*)dst + offset; |
| while (--height >= 0) { |
| proc(d, src, width, ctable); |
| d += stride; |
| src = (void*)((const char*)src + bitmap->rowBytes()); |
| } |
| env->ReleaseIntArrayElements(pixelArray, dst, 0); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void Bitmap_setPixel(JNIEnv* env, jobject, jlong bitmapHandle, |
| jint x, jint y, jint colorHandle, jboolean isPremultiplied) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkColor color = static_cast<SkColor>(colorHandle); |
| SkAutoLockPixels alp(*bitmap); |
| if (NULL == bitmap->getPixels()) { |
| return; |
| } |
| |
| FromColorProc proc = ChooseFromColorProc(bitmap->config(), isPremultiplied); |
| if (NULL == proc) { |
| return; |
| } |
| |
| proc(bitmap->getAddr(x, y), &color, 1, x, y); |
| bitmap->notifyPixelsChanged(); |
| } |
| |
| static void Bitmap_setPixels(JNIEnv* env, jobject, jlong bitmapHandle, |
| jintArray pixelArray, jint offset, jint stride, |
| jint x, jint y, jint width, jint height, jboolean isPremultiplied) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| GraphicsJNI::SetPixels(env, pixelArray, offset, stride, |
| x, y, width, height, *bitmap, isPremultiplied); |
| } |
| |
| static void Bitmap_copyPixelsToBuffer(JNIEnv* env, jobject, |
| jlong bitmapHandle, jobject jbuffer) { |
| const SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkAutoLockPixels alp(*bitmap); |
| const void* src = bitmap->getPixels(); |
| |
| if (NULL != src) { |
| android::AutoBufferPointer abp(env, jbuffer, JNI_TRUE); |
| |
| // the java side has already checked that buffer is large enough |
| memcpy(abp.pointer(), src, bitmap->getSize()); |
| } |
| } |
| |
| static void Bitmap_copyPixelsFromBuffer(JNIEnv* env, jobject, |
| jlong bitmapHandle, jobject jbuffer) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| SkAutoLockPixels alp(*bitmap); |
| void* dst = bitmap->getPixels(); |
| |
| if (NULL != dst) { |
| android::AutoBufferPointer abp(env, jbuffer, JNI_FALSE); |
| // the java side has already checked that buffer is large enough |
| memcpy(dst, abp.pointer(), bitmap->getSize()); |
| bitmap->notifyPixelsChanged(); |
| } |
| } |
| |
| static jboolean Bitmap_sameAs(JNIEnv* env, jobject, jlong bm0Handle, |
| jlong bm1Handle) { |
| const SkBitmap* bm0 = reinterpret_cast<SkBitmap*>(bm0Handle); |
| const SkBitmap* bm1 = reinterpret_cast<SkBitmap*>(bm1Handle); |
| if (bm0->width() != bm1->width() || |
| bm0->height() != bm1->height() || |
| bm0->config() != bm1->config()) { |
| return JNI_FALSE; |
| } |
| |
| SkAutoLockPixels alp0(*bm0); |
| SkAutoLockPixels alp1(*bm1); |
| |
| // if we can't load the pixels, return false |
| if (NULL == bm0->getPixels() || NULL == bm1->getPixels()) { |
| return JNI_FALSE; |
| } |
| |
| if (bm0->config() == SkBitmap::kIndex8_Config) { |
| SkColorTable* ct0 = bm0->getColorTable(); |
| SkColorTable* ct1 = bm1->getColorTable(); |
| if (NULL == ct0 || NULL == ct1) { |
| return JNI_FALSE; |
| } |
| if (ct0->count() != ct1->count()) { |
| return JNI_FALSE; |
| } |
| |
| SkAutoLockColors alc0(ct0); |
| SkAutoLockColors alc1(ct1); |
| const size_t size = ct0->count() * sizeof(SkPMColor); |
| if (memcmp(alc0.colors(), alc1.colors(), size) != 0) { |
| return JNI_FALSE; |
| } |
| } |
| |
| // now compare each scanline. We can't do the entire buffer at once, |
| // since we don't care about the pixel values that might extend beyond |
| // the width (since the scanline might be larger than the logical width) |
| const int h = bm0->height(); |
| const size_t size = bm0->width() * bm0->bytesPerPixel(); |
| for (int y = 0; y < h; y++) { |
| if (memcmp(bm0->getAddr(0, y), bm1->getAddr(0, y), size) != 0) { |
| return JNI_FALSE; |
| } |
| } |
| return JNI_TRUE; |
| } |
| |
| static void Bitmap_prepareToDraw(JNIEnv* env, jobject, jlong bitmapHandle) { |
| SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle); |
| bitmap->lockPixels(); |
| bitmap->unlockPixels(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include <android_runtime/AndroidRuntime.h> |
| |
| static JNINativeMethod gBitmapMethods[] = { |
| { "nativeCreate", "([IIIIIIZ)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_creator }, |
| { "nativeCopy", "(JIZ)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_copy }, |
| { "nativeDestructor", "(J)V", (void*)Bitmap_destructor }, |
| { "nativeRecycle", "(J)Z", (void*)Bitmap_recycle }, |
| { "nativeReconfigure", "(JIIIIZ)V", (void*)Bitmap_reconfigure }, |
| { "nativeCompress", "(JIILjava/io/OutputStream;[B)Z", |
| (void*)Bitmap_compress }, |
| { "nativeErase", "(JI)V", (void*)Bitmap_erase }, |
| { "nativeRowBytes", "(J)I", (void*)Bitmap_rowBytes }, |
| { "nativeConfig", "(J)I", (void*)Bitmap_config }, |
| { "nativeHasAlpha", "(J)Z", (void*)Bitmap_hasAlpha }, |
| { "nativeSetAlphaAndPremultiplied", "(JZZ)V", (void*)Bitmap_setAlphaAndPremultiplied}, |
| { "nativeHasMipMap", "(J)Z", (void*)Bitmap_hasMipMap }, |
| { "nativeSetHasMipMap", "(JZ)V", (void*)Bitmap_setHasMipMap }, |
| { "nativeCreateFromParcel", |
| "(Landroid/os/Parcel;)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_createFromParcel }, |
| { "nativeWriteToParcel", "(JZILandroid/os/Parcel;)Z", |
| (void*)Bitmap_writeToParcel }, |
| { "nativeExtractAlpha", "(JJ[I)Landroid/graphics/Bitmap;", |
| (void*)Bitmap_extractAlpha }, |
| { "nativeGenerationId", "(J)I", (void*)Bitmap_getGenerationId }, |
| { "nativeGetPixel", "(JIIZ)I", (void*)Bitmap_getPixel }, |
| { "nativeGetPixels", "(J[IIIIIIIZ)V", (void*)Bitmap_getPixels }, |
| { "nativeSetPixel", "(JIIIZ)V", (void*)Bitmap_setPixel }, |
| { "nativeSetPixels", "(J[IIIIIIIZ)V", (void*)Bitmap_setPixels }, |
| { "nativeCopyPixelsToBuffer", "(JLjava/nio/Buffer;)V", |
| (void*)Bitmap_copyPixelsToBuffer }, |
| { "nativeCopyPixelsFromBuffer", "(JLjava/nio/Buffer;)V", |
| (void*)Bitmap_copyPixelsFromBuffer }, |
| { "nativeSameAs", "(JJ)Z", (void*)Bitmap_sameAs }, |
| { "nativePrepareToDraw", "(J)V", (void*)Bitmap_prepareToDraw }, |
| }; |
| |
| #define kClassPathName "android/graphics/Bitmap" |
| |
| int register_android_graphics_Bitmap(JNIEnv* env) |
| { |
| return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, |
| gBitmapMethods, SK_ARRAY_COUNT(gBitmapMethods)); |
| } |