The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | #include "SkBitmap.h"
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| 2 | #include "SkImageEncoder.h"
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| 3 | #include "SkColorPriv.h"
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| 4 | #include "GraphicsJNI.h"
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| 5 | #include "SkDither.h"
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| 6 | #include "SkUnPreMultiply.h"
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| 7 |
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Mathias Agopian | 0795272 | 2009-05-19 19:08:10 -0700 | [diff] [blame] | 8 | #include <binder/Parcel.h>
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 9 | #include "android_util_Binder.h"
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| 10 | #include "android_nio_utils.h"
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| 11 | #include "CreateJavaOutputStreamAdaptor.h"
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| 12 |
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| 13 | #include <jni.h>
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| 14 |
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| 15 | #if 0
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| 16 | #define TRACE_BITMAP(code) code
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| 17 | #else
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| 18 | #define TRACE_BITMAP(code)
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| 19 | #endif
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| 20 |
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| 21 | ///////////////////////////////////////////////////////////////////////////////
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| 22 | // Conversions to/from SkColor, for get/setPixels, and the create method, which
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| 23 | // is basically like setPixels
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| 24 |
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| 25 | typedef void (*FromColorProc)(void* dst, const SkColor src[], int width,
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| 26 | int x, int y);
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| 27 |
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| 28 | static void FromColor_D32(void* dst, const SkColor src[], int width,
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| 29 | int, int) {
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| 30 | SkPMColor* d = (SkPMColor*)dst;
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 31 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 32 | for (int i = 0; i < width; i++) {
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| 33 | *d++ = SkPreMultiplyColor(*src++);
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| 34 | }
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| 35 | }
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| 36 |
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| 37 | static void FromColor_D565(void* dst, const SkColor src[], int width,
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| 38 | int x, int y) {
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| 39 | uint16_t* d = (uint16_t*)dst;
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 40 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 41 | DITHER_565_SCAN(y);
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| 42 | for (int stop = x + width; x < stop; x++) {
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| 43 | SkColor c = *src++;
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| 44 | *d++ = SkDitherRGBTo565(SkColorGetR(c), SkColorGetG(c), SkColorGetB(c),
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| 45 | DITHER_VALUE(x));
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| 46 | }
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| 47 | }
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| 48 |
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| 49 | static void FromColor_D4444(void* dst, const SkColor src[], int width,
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| 50 | int x, int y) {
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| 51 | SkPMColor16* d = (SkPMColor16*)dst;
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 52 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 53 | DITHER_4444_SCAN(y);
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| 54 | for (int stop = x + width; x < stop; x++) {
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| 55 | SkPMColor c = SkPreMultiplyColor(*src++);
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| 56 | *d++ = SkDitherARGB32To4444(c, DITHER_VALUE(x));
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| 57 | // *d++ = SkPixel32ToPixel4444(c);
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| 58 | }
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| 59 | }
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| 60 |
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| 61 | // can return NULL
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| 62 | static FromColorProc ChooseFromColorProc(SkBitmap::Config config) {
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| 63 | switch (config) {
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| 64 | case SkBitmap::kARGB_8888_Config:
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| 65 | return FromColor_D32;
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| 66 | case SkBitmap::kARGB_4444_Config:
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| 67 | return FromColor_D4444;
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| 68 | case SkBitmap::kRGB_565_Config:
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| 69 | return FromColor_D565;
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| 70 | default:
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| 71 | break;
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| 72 | }
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| 73 | return NULL;
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| 74 | }
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| 75 |
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| 76 | bool GraphicsJNI::SetPixels(JNIEnv* env, jintArray srcColors,
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| 77 | int srcOffset, int srcStride,
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| 78 | int x, int y, int width, int height,
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| 79 | const SkBitmap& dstBitmap) {
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| 80 | SkAutoLockPixels alp(dstBitmap);
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| 81 | void* dst = dstBitmap.getPixels();
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| 82 | FromColorProc proc = ChooseFromColorProc(dstBitmap.config());
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 83 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 84 | if (NULL == dst || NULL == proc) {
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| 85 | return false;
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| 86 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 87 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 88 | const jint* array = env->GetIntArrayElements(srcColors, NULL);
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| 89 | const SkColor* src = (const SkColor*)array + srcOffset;
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 90 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 91 | // reset to to actual choice from caller
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| 92 | dst = dstBitmap.getAddr(x, y);
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| 93 | // now copy/convert each scanline
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| 94 | for (int y = 0; y < height; y++) {
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| 95 | proc(dst, src, width, x, y);
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| 96 | src += srcStride;
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| 97 | dst = (char*)dst + dstBitmap.rowBytes();
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| 98 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 99 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 100 | env->ReleaseIntArrayElements(srcColors, const_cast<jint*>(array),
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| 101 | JNI_ABORT);
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| 102 | return true;
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| 103 | }
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| 104 |
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| 105 | //////////////////// ToColor procs
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| 106 |
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| 107 | typedef void (*ToColorProc)(SkColor dst[], const void* src, int width,
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| 108 | SkColorTable*);
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| 109 |
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| 110 | static void ToColor_S32_Alpha(SkColor dst[], const void* src, int width,
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| 111 | SkColorTable*) {
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| 112 | SkASSERT(width > 0);
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| 113 | const SkPMColor* s = (const SkPMColor*)src;
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| 114 | do {
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| 115 | *dst++ = SkUnPreMultiply::PMColorToColor(*s++);
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| 116 | } while (--width != 0);
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| 117 | }
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| 118 |
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| 119 | static void ToColor_S32_Opaque(SkColor dst[], const void* src, int width,
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| 120 | SkColorTable*) {
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| 121 | SkASSERT(width > 0);
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| 122 | const SkPMColor* s = (const SkPMColor*)src;
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| 123 | do {
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| 124 | SkPMColor c = *s++;
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| 125 | *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
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| 126 | SkGetPackedB32(c));
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| 127 | } while (--width != 0);
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| 128 | }
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| 129 |
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| 130 | static void ToColor_S4444_Alpha(SkColor dst[], const void* src, int width,
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| 131 | SkColorTable*) {
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| 132 | SkASSERT(width > 0);
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| 133 | const SkPMColor16* s = (const SkPMColor16*)src;
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| 134 | do {
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| 135 | *dst++ = SkUnPreMultiply::PMColorToColor(SkPixel4444ToPixel32(*s++));
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| 136 | } while (--width != 0);
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| 137 | }
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| 138 |
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| 139 | static void ToColor_S4444_Opaque(SkColor dst[], const void* src, int width,
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| 140 | SkColorTable*) {
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| 141 | SkASSERT(width > 0);
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| 142 | const SkPMColor* s = (const SkPMColor*)src;
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| 143 | do {
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| 144 | SkPMColor c = SkPixel4444ToPixel32(*s++);
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| 145 | *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
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| 146 | SkGetPackedB32(c));
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| 147 | } while (--width != 0);
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| 148 | }
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| 149 |
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| 150 | static void ToColor_S565(SkColor dst[], const void* src, int width,
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| 151 | SkColorTable*) {
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| 152 | SkASSERT(width > 0);
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| 153 | const uint16_t* s = (const uint16_t*)src;
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| 154 | do {
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| 155 | uint16_t c = *s++;
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| 156 | *dst++ = SkColorSetRGB(SkPacked16ToR32(c), SkPacked16ToG32(c),
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| 157 | SkPacked16ToB32(c));
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| 158 | } while (--width != 0);
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| 159 | }
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| 160 |
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| 161 | static void ToColor_SI8_Alpha(SkColor dst[], const void* src, int width,
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| 162 | SkColorTable* ctable) {
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| 163 | SkASSERT(width > 0);
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| 164 | const uint8_t* s = (const uint8_t*)src;
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| 165 | const SkPMColor* colors = ctable->lockColors();
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| 166 | do {
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| 167 | *dst++ = SkUnPreMultiply::PMColorToColor(colors[*s++]);
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| 168 | } while (--width != 0);
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| 169 | ctable->unlockColors(false);
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| 170 | }
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| 171 |
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| 172 | static void ToColor_SI8_Opaque(SkColor dst[], const void* src, int width,
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| 173 | SkColorTable* ctable) {
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| 174 | SkASSERT(width > 0);
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| 175 | const uint8_t* s = (const uint8_t*)src;
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| 176 | const SkPMColor* colors = ctable->lockColors();
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| 177 | do {
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| 178 | SkPMColor c = colors[*s++];
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| 179 | *dst++ = SkColorSetRGB(SkGetPackedR32(c), SkGetPackedG32(c),
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| 180 | SkGetPackedB32(c));
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| 181 | } while (--width != 0);
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| 182 | ctable->unlockColors(false);
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| 183 | }
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| 184 |
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| 185 | // can return NULL
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| 186 | static ToColorProc ChooseToColorProc(const SkBitmap& src) {
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| 187 | switch (src.config()) {
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| 188 | case SkBitmap::kARGB_8888_Config:
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| 189 | return src.isOpaque() ? ToColor_S32_Opaque : ToColor_S32_Alpha;
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| 190 | case SkBitmap::kARGB_4444_Config:
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| 191 | return src.isOpaque() ? ToColor_S4444_Opaque : ToColor_S4444_Alpha;
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| 192 | case SkBitmap::kRGB_565_Config:
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| 193 | return ToColor_S565;
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| 194 | case SkBitmap::kIndex8_Config:
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| 195 | if (src.getColorTable() == NULL) {
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| 196 | return NULL;
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| 197 | }
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| 198 | return src.isOpaque() ? ToColor_SI8_Opaque : ToColor_SI8_Alpha;
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| 199 | default:
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| 200 | break;
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| 201 | }
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| 202 | return NULL;
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| 203 | }
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| 204 |
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| 205 | ///////////////////////////////////////////////////////////////////////////////
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| 206 | ///////////////////////////////////////////////////////////////////////////////
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| 207 |
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| 208 | static jobject Bitmap_creator(JNIEnv* env, jobject, jintArray jColors,
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| 209 | int offset, int stride, int width, int height,
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| 210 | SkBitmap::Config config, jboolean isMutable) {
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| 211 | if (width <= 0 || height <= 0) {
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| 212 | doThrowIAE(env, "width and height must be > 0");
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| 213 | return NULL;
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| 214 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 215 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 216 | if (NULL != jColors) {
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| 217 | size_t n = env->GetArrayLength(jColors);
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| 218 | if (n < SkAbs32(stride) * (size_t)height) {
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| 219 | doThrowAIOOBE(env);
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| 220 | return NULL;
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| 221 | }
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| 222 | }
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| 223 |
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| 224 | SkBitmap bitmap;
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 225 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 226 | bitmap.setConfig(config, width, height);
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Mike Reed | 1b22b97 | 2009-07-17 11:21:47 -0400 | [diff] [blame] | 227 | if (!GraphicsJNI::setJavaPixelRef(env, &bitmap, NULL, true)) {
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 228 | return NULL;
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| 229 | }
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| 230 |
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| 231 | if (jColors != NULL) {
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| 232 | GraphicsJNI::SetPixels(env, jColors, offset, stride,
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| 233 | 0, 0, width, height, bitmap);
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| 234 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 235 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 236 | return GraphicsJNI::createBitmap(env, new SkBitmap(bitmap), isMutable,
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| 237 | NULL);
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| 238 | }
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| 239 |
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| 240 | static jobject Bitmap_copy(JNIEnv* env, jobject, const SkBitmap* src,
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| 241 | SkBitmap::Config dstConfig, jboolean isMutable) {
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| 242 | SkBitmap result;
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Mike Reed | 1b22b97 | 2009-07-17 11:21:47 -0400 | [diff] [blame] | 243 | JavaPixelAllocator allocator(env, true);
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 244 |
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| 245 | if (!src->copyTo(&result, dstConfig, &allocator)) {
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| 246 | return NULL;
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| 247 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 248 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 249 | return GraphicsJNI::createBitmap(env, new SkBitmap(result), isMutable,
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| 250 | NULL);
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| 251 | }
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| 252 |
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| 253 | static void Bitmap_destructor(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 254 | delete bitmap;
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| 255 | }
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| 256 |
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| 257 | static void Bitmap_recycle(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 258 | bitmap->setPixels(NULL, NULL);
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| 259 | }
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| 260 |
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| 261 | // These must match the int values in Bitmap.java
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| 262 | enum JavaEncodeFormat {
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| 263 | kJPEG_JavaEncodeFormat = 0,
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| 264 | kPNG_JavaEncodeFormat = 1
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| 265 | };
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| 266 |
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| 267 | static bool Bitmap_compress(JNIEnv* env, jobject clazz, SkBitmap* bitmap,
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| 268 | int format, int quality,
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| 269 | jobject jstream, jbyteArray jstorage) {
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| 270 | SkImageEncoder::Type fm;
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| 271 |
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| 272 | switch (format) {
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| 273 | case kJPEG_JavaEncodeFormat:
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| 274 | fm = SkImageEncoder::kJPEG_Type;
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| 275 | break;
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| 276 | case kPNG_JavaEncodeFormat:
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| 277 | fm = SkImageEncoder::kPNG_Type;
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| 278 | break;
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| 279 | default:
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| 280 | return false;
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| 281 | }
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| 282 |
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| 283 | bool success = false;
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| 284 | SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
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| 285 | if (NULL != strm) {
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| 286 | SkImageEncoder* encoder = SkImageEncoder::Create(fm);
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| 287 | if (NULL != encoder) {
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| 288 | success = encoder->encodeStream(strm, *bitmap, quality);
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| 289 | delete encoder;
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| 290 | }
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| 291 | delete strm;
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| 292 | }
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| 293 | return success;
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| 294 | }
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| 295 |
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| 296 | static void Bitmap_erase(JNIEnv* env, jobject, SkBitmap* bitmap, jint color) {
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| 297 | bitmap->eraseColor(color);
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| 298 | }
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| 299 |
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| 300 | static int Bitmap_width(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 301 | return bitmap->width();
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| 302 | }
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| 303 |
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| 304 | static int Bitmap_height(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 305 | return bitmap->height();
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| 306 | }
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| 307 |
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| 308 | static int Bitmap_rowBytes(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 309 | return bitmap->rowBytes();
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| 310 | }
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| 311 |
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| 312 | static int Bitmap_config(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 313 | return bitmap->config();
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| 314 | }
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| 315 |
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| 316 | static jboolean Bitmap_hasAlpha(JNIEnv* env, jobject, SkBitmap* bitmap) {
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| 317 | return !bitmap->isOpaque();
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| 318 | }
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| 319 |
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Mike Reed | a78b0a2 | 2009-10-07 11:38:05 -0700 | [diff] [blame] | 320 | static void Bitmap_setHasAlpha(JNIEnv* env, jobject, SkBitmap* bitmap,
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| 321 | jboolean hasAlpha) {
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| 322 | bitmap->setIsOpaque(!hasAlpha);
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| 323 | }
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| 324 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 325 | ///////////////////////////////////////////////////////////////////////////////
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| 326 |
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| 327 | static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) {
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| 328 | if (parcel == NULL) {
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| 329 | SkDebugf("-------- unparcel parcel is NULL\n");
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| 330 | return NULL;
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| 331 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 332 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 333 | android::Parcel* p = android::parcelForJavaObject(env, parcel);
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 334 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 335 | const bool isMutable = p->readInt32() != 0;
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| 336 | const SkBitmap::Config config = (SkBitmap::Config)p->readInt32();
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| 337 | const int width = p->readInt32();
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| 338 | const int height = p->readInt32();
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| 339 | const int rowBytes = p->readInt32();
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Dianne Hackborn | de0dfb7 | 2009-09-23 14:09:34 -0700 | [diff] [blame] | 340 | const int density = p->readInt32();
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 341 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 342 | if (SkBitmap::kARGB_8888_Config != config &&
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| 343 | SkBitmap::kRGB_565_Config != config &&
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| 344 | SkBitmap::kARGB_4444_Config != config &&
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| 345 | SkBitmap::kIndex8_Config != config &&
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| 346 | SkBitmap::kA8_Config != config) {
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| 347 | SkDebugf("Bitmap_createFromParcel unknown config: %d\n", config);
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| 348 | return NULL;
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| 349 | }
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| 350 |
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| 351 | SkBitmap* bitmap = new SkBitmap;
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| 352 |
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| 353 | bitmap->setConfig(config, width, height, rowBytes);
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| 354 |
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| 355 | SkColorTable* ctable = NULL;
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| 356 | if (config == SkBitmap::kIndex8_Config) {
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| 357 | int count = p->readInt32();
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| 358 | if (count > 0) {
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| 359 | size_t size = count * sizeof(SkPMColor);
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| 360 | const SkPMColor* src = (const SkPMColor*)p->readInplace(size);
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| 361 | ctable = new SkColorTable(src, count);
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| 362 | }
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| 363 | }
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 364 |
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Mike Reed | 1b22b97 | 2009-07-17 11:21:47 -0400 | [diff] [blame] | 365 | if (!GraphicsJNI::setJavaPixelRef(env, bitmap, ctable, true)) {
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 366 | ctable->safeUnref();
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| 367 | delete bitmap;
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| 368 | return NULL;
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| 369 | }
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| 370 |
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| 371 | ctable->safeUnref();
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| 372 |
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| 373 | size_t size = bitmap->getSize();
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| 374 | bitmap->lockPixels();
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| 375 | memcpy(bitmap->getPixels(), p->readInplace(size), size);
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| 376 | bitmap->unlockPixels();
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 377 |
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Dianne Hackborn | de0dfb7 | 2009-09-23 14:09:34 -0700 | [diff] [blame] | 378 | return GraphicsJNI::createBitmap(env, bitmap, isMutable, NULL, density);
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 379 | }
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| 380 |
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| 381 | static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject,
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| 382 | const SkBitmap* bitmap,
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Dianne Hackborn | de0dfb7 | 2009-09-23 14:09:34 -0700 | [diff] [blame] | 383 | jboolean isMutable, jint density,
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| 384 | jobject parcel) {
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 385 | if (parcel == NULL) {
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| 386 | SkDebugf("------- writeToParcel null parcel\n");
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| 387 | return false;
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| 388 | }
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| 389 |
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| 390 | android::Parcel* p = android::parcelForJavaObject(env, parcel);
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Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 391 |
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 392 | p->writeInt32(isMutable);
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| 393 | p->writeInt32(bitmap->config());
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| 394 | p->writeInt32(bitmap->width());
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| 395 | p->writeInt32(bitmap->height());
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| 396 | p->writeInt32(bitmap->rowBytes());
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Dianne Hackborn | de0dfb7 | 2009-09-23 14:09:34 -0700 | [diff] [blame] | 397 | p->writeInt32(density);
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The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 398 |
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| 399 | if (bitmap->getConfig() == SkBitmap::kIndex8_Config) {
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| 400 | SkColorTable* ctable = bitmap->getColorTable();
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| 401 | if (ctable != NULL) {
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| 402 | int count = ctable->count();
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| 403 | p->writeInt32(count);
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| 404 | memcpy(p->writeInplace(count * sizeof(SkPMColor)),
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| 405 | ctable->lockColors(), count * sizeof(SkPMColor));
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| 406 | ctable->unlockColors(false);
|
| 407 | } else {
|
| 408 | p->writeInt32(0); // indicate no ctable
|
| 409 | }
|
| 410 | }
|
| 411 |
|
| 412 | size_t size = bitmap->getSize();
|
| 413 | bitmap->lockPixels();
|
| 414 | memcpy(p->writeInplace(size), bitmap->getPixels(), size);
|
| 415 | bitmap->unlockPixels();
|
| 416 | return true;
|
| 417 | }
|
| 418 |
|
| 419 | static jobject Bitmap_extractAlpha(JNIEnv* env, jobject clazz,
|
| 420 | const SkBitmap* src, const SkPaint* paint,
|
| 421 | jintArray offsetXY) {
|
| 422 | SkIPoint offset;
|
| 423 | SkBitmap* dst = new SkBitmap;
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 424 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 425 | src->extractAlpha(dst, paint, &offset);
|
| 426 | if (offsetXY != 0 && env->GetArrayLength(offsetXY) >= 2) {
|
| 427 | int* array = env->GetIntArrayElements(offsetXY, NULL);
|
| 428 | array[0] = offset.fX;
|
| 429 | array[1] = offset.fY;
|
| 430 | env->ReleaseIntArrayElements(offsetXY, array, 0);
|
| 431 | }
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 432 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 433 | return GraphicsJNI::createBitmap(env, dst, true, NULL);
|
| 434 | }
|
| 435 |
|
| 436 | ///////////////////////////////////////////////////////////////////////////////
|
| 437 |
|
| 438 | static int Bitmap_getPixel(JNIEnv* env, jobject, const SkBitmap* bitmap,
|
| 439 | int x, int y) {
|
| 440 | SkAutoLockPixels alp(*bitmap);
|
| 441 |
|
| 442 | ToColorProc proc = ChooseToColorProc(*bitmap);
|
| 443 | if (NULL == proc) {
|
| 444 | return 0;
|
| 445 | }
|
| 446 | const void* src = bitmap->getAddr(x, y);
|
| 447 | if (NULL == src) {
|
| 448 | return 0;
|
| 449 | }
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 450 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 451 | SkColor dst[1];
|
| 452 | proc(dst, src, 1, bitmap->getColorTable());
|
| 453 | return dst[0];
|
| 454 | }
|
| 455 |
|
| 456 | static void Bitmap_getPixels(JNIEnv* env, jobject, const SkBitmap* bitmap,
|
| 457 | jintArray pixelArray, int offset, int stride,
|
| 458 | int x, int y, int width, int height) {
|
| 459 | SkAutoLockPixels alp(*bitmap);
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 460 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 461 | ToColorProc proc = ChooseToColorProc(*bitmap);
|
| 462 | if (NULL == proc) {
|
| 463 | return;
|
| 464 | }
|
| 465 | const void* src = bitmap->getAddr(x, y);
|
| 466 | if (NULL == src) {
|
| 467 | return;
|
| 468 | }
|
| 469 |
|
| 470 | SkColorTable* ctable = bitmap->getColorTable();
|
| 471 | jint* dst = env->GetIntArrayElements(pixelArray, NULL);
|
| 472 | SkColor* d = (SkColor*)dst + offset;
|
| 473 | while (--height >= 0) {
|
| 474 | proc(d, src, width, ctable);
|
| 475 | d += stride;
|
| 476 | src = (void*)((const char*)src + bitmap->rowBytes());
|
| 477 | }
|
| 478 | env->ReleaseIntArrayElements(pixelArray, dst, 0);
|
| 479 | }
|
| 480 |
|
| 481 | ///////////////////////////////////////////////////////////////////////////////
|
| 482 |
|
| 483 | static void Bitmap_setPixel(JNIEnv* env, jobject, const SkBitmap* bitmap,
|
| 484 | int x, int y, SkColor color) {
|
| 485 | SkAutoLockPixels alp(*bitmap);
|
| 486 | if (NULL == bitmap->getPixels()) {
|
| 487 | return;
|
| 488 | }
|
| 489 |
|
| 490 | FromColorProc proc = ChooseFromColorProc(bitmap->config());
|
| 491 | if (NULL == proc) {
|
| 492 | return;
|
| 493 | }
|
| 494 |
|
| 495 | proc(bitmap->getAddr(x, y), &color, 1, x, y);
|
| 496 | }
|
| 497 |
|
| 498 | static void Bitmap_setPixels(JNIEnv* env, jobject, const SkBitmap* bitmap,
|
| 499 | jintArray pixelArray, int offset, int stride,
|
| 500 | int x, int y, int width, int height) {
|
| 501 | GraphicsJNI::SetPixels(env, pixelArray, offset, stride,
|
| 502 | x, y, width, height, *bitmap);
|
| 503 | }
|
| 504 |
|
| 505 | static void Bitmap_copyPixelsToBuffer(JNIEnv* env, jobject,
|
| 506 | const SkBitmap* bitmap, jobject jbuffer) {
|
| 507 | SkAutoLockPixels alp(*bitmap);
|
| 508 | const void* src = bitmap->getPixels();
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 509 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 510 | if (NULL != src) {
|
| 511 | android::AutoBufferPointer abp(env, jbuffer, JNI_TRUE);
|
| 512 |
|
| 513 | // the java side has already checked that buffer is large enough
|
| 514 | memcpy(abp.pointer(), src, bitmap->getSize());
|
| 515 | }
|
| 516 | }
|
| 517 |
|
| 518 | static void Bitmap_copyPixelsFromBuffer(JNIEnv* env, jobject,
|
| 519 | const SkBitmap* bitmap, jobject jbuffer) {
|
| 520 | SkAutoLockPixels alp(*bitmap);
|
| 521 | void* dst = bitmap->getPixels();
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 522 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 523 | if (NULL != dst) {
|
| 524 | android::AutoBufferPointer abp(env, jbuffer, JNI_FALSE);
|
| 525 | // the java side has already checked that buffer is large enough
|
| 526 | memcpy(dst, abp.pointer(), bitmap->getSize());
|
| 527 | }
|
| 528 | }
|
| 529 |
|
Mike Reed | 76d1e01 | 2010-03-05 17:42:30 -0500 | [diff] [blame] | 530 | static bool Bitmap_sameAs(JNIEnv* env, jobject, const SkBitmap* bm0,
|
| 531 | const SkBitmap* bm1) {
|
| 532 | if (bm0->width() != bm1->width() ||
|
| 533 | bm0->height() != bm1->height() ||
|
| 534 | bm0->config() != bm1->config()) {
|
| 535 | return false;
|
| 536 | }
|
| 537 |
|
| 538 | SkAutoLockPixels alp0(*bm0);
|
| 539 | SkAutoLockPixels alp1(*bm1);
|
| 540 |
|
| 541 | // if we can't load the pixels, return false
|
| 542 | if (NULL == bm0->getPixels() || NULL == bm1->getPixels()) {
|
| 543 | return false;
|
| 544 | }
|
| 545 |
|
| 546 | if (bm0->config() == SkBitmap::kIndex8_Config) {
|
| 547 | SkColorTable* ct0 = bm0->getColorTable();
|
| 548 | SkColorTable* ct1 = bm1->getColorTable();
|
| 549 | if (NULL == ct0 || NULL == ct1) {
|
| 550 | return false;
|
| 551 | }
|
| 552 | if (ct0->count() != ct1->count()) {
|
| 553 | return false;
|
| 554 | }
|
| 555 |
|
| 556 | SkAutoLockColors alc0(ct0);
|
| 557 | SkAutoLockColors alc1(ct1);
|
| 558 | const size_t size = ct0->count() * sizeof(SkPMColor);
|
| 559 | if (memcmp(alc0.colors(), alc1.colors(), size) != 0) {
|
| 560 | return false;
|
| 561 | }
|
| 562 | }
|
| 563 |
|
| 564 | // now compare each scanline. We can't do the entire buffer at once,
|
| 565 | // since we don't care about the pixel values that might extend beyond
|
| 566 | // the width (since the scanline might be larger than the logical width)
|
| 567 | const int h = bm0->height();
|
| 568 | const size_t size = bm0->width() * bm0->bytesPerPixel();
|
| 569 | for (int y = 0; y < h; y++) {
|
| 570 | if (memcmp(bm0->getAddr(0, y), bm1->getAddr(0, y), size) != 0) {
|
| 571 | return false;
|
| 572 | }
|
| 573 | }
|
| 574 | return true;
|
| 575 | }
|
| 576 |
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 577 | static void Bitmap_prepareToDraw(JNIEnv* env, jobject, SkBitmap* bitmap) {
|
| 578 | bitmap->lockPixels();
|
| 579 | bitmap->unlockPixels();
|
| 580 | }
|
| 581 |
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 582 | ///////////////////////////////////////////////////////////////////////////////
|
| 583 |
|
| 584 | #include <android_runtime/AndroidRuntime.h>
|
| 585 |
|
| 586 | static JNINativeMethod gBitmapMethods[] = {
|
| 587 | { "nativeCreate", "([IIIIIIZ)Landroid/graphics/Bitmap;",
|
| 588 | (void*)Bitmap_creator },
|
| 589 | { "nativeCopy", "(IIZ)Landroid/graphics/Bitmap;",
|
| 590 | (void*)Bitmap_copy },
|
| 591 | { "nativeDestructor", "(I)V", (void*)Bitmap_destructor },
|
| 592 | { "nativeRecycle", "(I)V", (void*)Bitmap_recycle },
|
| 593 | { "nativeCompress", "(IIILjava/io/OutputStream;[B)Z",
|
| 594 | (void*)Bitmap_compress },
|
| 595 | { "nativeErase", "(II)V", (void*)Bitmap_erase },
|
| 596 | { "nativeWidth", "(I)I", (void*)Bitmap_width },
|
| 597 | { "nativeHeight", "(I)I", (void*)Bitmap_height },
|
| 598 | { "nativeRowBytes", "(I)I", (void*)Bitmap_rowBytes },
|
| 599 | { "nativeConfig", "(I)I", (void*)Bitmap_config },
|
| 600 | { "nativeHasAlpha", "(I)Z", (void*)Bitmap_hasAlpha },
|
Mike Reed | a78b0a2 | 2009-10-07 11:38:05 -0700 | [diff] [blame] | 601 | { "nativeSetHasAlpha", "(IZ)V", (void*)Bitmap_setHasAlpha },
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 602 | { "nativeCreateFromParcel",
|
| 603 | "(Landroid/os/Parcel;)Landroid/graphics/Bitmap;",
|
| 604 | (void*)Bitmap_createFromParcel },
|
Dianne Hackborn | de0dfb7 | 2009-09-23 14:09:34 -0700 | [diff] [blame] | 605 | { "nativeWriteToParcel", "(IZILandroid/os/Parcel;)Z",
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 606 | (void*)Bitmap_writeToParcel },
|
| 607 | { "nativeExtractAlpha", "(II[I)Landroid/graphics/Bitmap;",
|
| 608 | (void*)Bitmap_extractAlpha },
|
| 609 | { "nativeGetPixel", "(III)I", (void*)Bitmap_getPixel },
|
| 610 | { "nativeGetPixels", "(I[IIIIIII)V", (void*)Bitmap_getPixels },
|
| 611 | { "nativeSetPixel", "(IIII)V", (void*)Bitmap_setPixel },
|
| 612 | { "nativeSetPixels", "(I[IIIIIII)V", (void*)Bitmap_setPixels },
|
| 613 | { "nativeCopyPixelsToBuffer", "(ILjava/nio/Buffer;)V",
|
| 614 | (void*)Bitmap_copyPixelsToBuffer },
|
| 615 | { "nativeCopyPixelsFromBuffer", "(ILjava/nio/Buffer;)V",
|
Wei-Ta Chen | 8cdcb12 | 2009-06-18 19:14:38 +0800 | [diff] [blame] | 616 | (void*)Bitmap_copyPixelsFromBuffer },
|
Mike Reed | 76d1e01 | 2010-03-05 17:42:30 -0500 | [diff] [blame] | 617 | { "nativeSameAs", "(II)Z", (void*)Bitmap_sameAs },
|
| 618 | { "nativePrepareToDraw", "(I)V", (void*)Bitmap_prepareToDraw },
|
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 619 | };
|
| 620 |
|
| 621 | #define kClassPathName "android/graphics/Bitmap"
|
| 622 |
|
| 623 | int register_android_graphics_Bitmap(JNIEnv* env);
|
| 624 | int register_android_graphics_Bitmap(JNIEnv* env)
|
| 625 | {
|
| 626 | return android::AndroidRuntime::registerNativeMethods(env, kClassPathName,
|
| 627 | gBitmapMethods, SK_ARRAY_COUNT(gBitmapMethods));
|
| 628 | }
|
| 629 |
|