1 #undef LOG_TAG
2 #define LOG_TAG "GraphicsJNI"
3
4 #include <assert.h>
5 #include <unistd.h>
6
7 #include "jni.h"
8 #include <nativehelper/JNIHelp.h>
9 #include "GraphicsJNI.h"
10
11 #include "SkBitmap.h"
12 #include "SkCanvas.h"
13 #include "SkColorSpace.h"
14 #include "SkFontMetrics.h"
15 #include "SkImageInfo.h"
16 #include "SkPixelRef.h"
17 #include "SkPoint.h"
18 #include "SkRect.h"
19 #include "SkRegion.h"
20 #include "SkTypes.h"
21 #include <cutils/ashmem.h>
22 #include <hwui/Canvas.h>
23 #include <log/log.h>
24
25 using namespace android;
26
27 /*static*/ JavaVM* GraphicsJNI::mJavaVM = nullptr;
28
setJavaVM(JavaVM * javaVM)29 void GraphicsJNI::setJavaVM(JavaVM* javaVM) {
30 mJavaVM = javaVM;
31 }
32
33 /** return a pointer to the JNIEnv for this thread */
getJNIEnv()34 JNIEnv* GraphicsJNI::getJNIEnv() {
35 assert(mJavaVM != nullptr);
36 JNIEnv* env;
37 if (mJavaVM->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
38 return nullptr;
39 }
40 return env;
41 }
42
43 /** create a JNIEnv* for this thread or assert if one already exists */
attachJNIEnv(const char * envName)44 JNIEnv* GraphicsJNI::attachJNIEnv(const char* envName) {
45 assert(getJNIEnv() == nullptr);
46 JNIEnv* env = nullptr;
47 JavaVMAttachArgs args = { JNI_VERSION_1_4, envName, NULL };
48 int result = mJavaVM->AttachCurrentThread(&env, (void*) &args);
49 if (result != JNI_OK) {
50 ALOGE("thread attach failed: %#x", result);
51 }
52 return env;
53 }
54
55 /** detach the current thread from the JavaVM */
detachJNIEnv()56 void GraphicsJNI::detachJNIEnv() {
57 assert(mJavaVM != nullptr);
58 mJavaVM->DetachCurrentThread();
59 }
60
doThrowNPE(JNIEnv * env)61 void doThrowNPE(JNIEnv* env) {
62 jniThrowNullPointerException(env, NULL);
63 }
64
doThrowAIOOBE(JNIEnv * env)65 void doThrowAIOOBE(JNIEnv* env) {
66 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL);
67 }
68
doThrowRE(JNIEnv * env,const char * msg)69 void doThrowRE(JNIEnv* env, const char* msg) {
70 jniThrowRuntimeException(env, msg);
71 }
72
doThrowIAE(JNIEnv * env,const char * msg)73 void doThrowIAE(JNIEnv* env, const char* msg) {
74 jniThrowException(env, "java/lang/IllegalArgumentException", msg);
75 }
76
doThrowISE(JNIEnv * env,const char * msg)77 void doThrowISE(JNIEnv* env, const char* msg) {
78 jniThrowException(env, "java/lang/IllegalStateException", msg);
79 }
80
doThrowOOME(JNIEnv * env,const char * msg)81 void doThrowOOME(JNIEnv* env, const char* msg) {
82 jniThrowException(env, "java/lang/OutOfMemoryError", msg);
83 }
84
doThrowIOE(JNIEnv * env,const char * msg)85 void doThrowIOE(JNIEnv* env, const char* msg) {
86 jniThrowException(env, "java/io/IOException", msg);
87 }
88
hasException(JNIEnv * env)89 bool GraphicsJNI::hasException(JNIEnv *env) {
90 if (env->ExceptionCheck() != 0) {
91 ALOGE("*** Uncaught exception returned from Java call!\n");
92 env->ExceptionDescribe();
93 return true;
94 }
95 return false;
96 }
97
98 ///////////////////////////////////////////////////////////////////////////////
99
AutoJavaFloatArray(JNIEnv * env,jfloatArray array,int minLength,JNIAccess access)100 AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array,
101 int minLength, JNIAccess access)
102 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
103 ALOG_ASSERT(env);
104 if (array) {
105 fLen = env->GetArrayLength(array);
106 if (fLen < minLength) {
107 LOG_ALWAYS_FATAL("bad length");
108 }
109 fPtr = env->GetFloatArrayElements(array, NULL);
110 }
111 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0;
112 }
113
~AutoJavaFloatArray()114 AutoJavaFloatArray::~AutoJavaFloatArray() {
115 if (fPtr) {
116 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode);
117 }
118 }
119
AutoJavaIntArray(JNIEnv * env,jintArray array,int minLength)120 AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array,
121 int minLength)
122 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
123 ALOG_ASSERT(env);
124 if (array) {
125 fLen = env->GetArrayLength(array);
126 if (fLen < minLength) {
127 LOG_ALWAYS_FATAL("bad length");
128 }
129 fPtr = env->GetIntArrayElements(array, NULL);
130 }
131 }
132
~AutoJavaIntArray()133 AutoJavaIntArray::~AutoJavaIntArray() {
134 if (fPtr) {
135 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0);
136 }
137 }
138
AutoJavaShortArray(JNIEnv * env,jshortArray array,int minLength,JNIAccess access)139 AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array,
140 int minLength, JNIAccess access)
141 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
142 ALOG_ASSERT(env);
143 if (array) {
144 fLen = env->GetArrayLength(array);
145 if (fLen < minLength) {
146 LOG_ALWAYS_FATAL("bad length");
147 }
148 fPtr = env->GetShortArrayElements(array, NULL);
149 }
150 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0;
151 }
152
~AutoJavaShortArray()153 AutoJavaShortArray::~AutoJavaShortArray() {
154 if (fPtr) {
155 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode);
156 }
157 }
158
AutoJavaByteArray(JNIEnv * env,jbyteArray array,int minLength)159 AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array,
160 int minLength)
161 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
162 ALOG_ASSERT(env);
163 if (array) {
164 fLen = env->GetArrayLength(array);
165 if (fLen < minLength) {
166 LOG_ALWAYS_FATAL("bad length");
167 }
168 fPtr = env->GetByteArrayElements(array, NULL);
169 }
170 }
171
~AutoJavaByteArray()172 AutoJavaByteArray::~AutoJavaByteArray() {
173 if (fPtr) {
174 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0);
175 }
176 }
177
178 ///////////////////////////////////////////////////////////////////////////////
179
180 static jclass gRect_class;
181 static jfieldID gRect_leftFieldID;
182 static jfieldID gRect_topFieldID;
183 static jfieldID gRect_rightFieldID;
184 static jfieldID gRect_bottomFieldID;
185
186 static jclass gRectF_class;
187 static jfieldID gRectF_leftFieldID;
188 static jfieldID gRectF_topFieldID;
189 static jfieldID gRectF_rightFieldID;
190 static jfieldID gRectF_bottomFieldID;
191
192 static jclass gPoint_class;
193 static jfieldID gPoint_xFieldID;
194 static jfieldID gPoint_yFieldID;
195
196 static jclass gPointF_class;
197 static jfieldID gPointF_xFieldID;
198 static jfieldID gPointF_yFieldID;
199
200 static jclass gBitmapConfig_class;
201 static jfieldID gBitmapConfig_nativeInstanceID;
202 static jmethodID gBitmapConfig_nativeToConfigMethodID;
203
204 static jclass gBitmapRegionDecoder_class;
205 static jmethodID gBitmapRegionDecoder_constructorMethodID;
206
207 static jclass gCanvas_class;
208 static jfieldID gCanvas_nativeInstanceID;
209
210 static jclass gPicture_class;
211 static jfieldID gPicture_nativeInstanceID;
212
213 static jclass gRegion_class;
214 static jfieldID gRegion_nativeInstanceID;
215 static jmethodID gRegion_constructorMethodID;
216
217 static jclass gByte_class;
218 static jobject gVMRuntime;
219 static jclass gVMRuntime_class;
220 static jmethodID gVMRuntime_newNonMovableArray;
221 static jmethodID gVMRuntime_addressOf;
222
223 static jclass gColorSpace_class;
224 static jmethodID gColorSpace_getMethodID;
225 static jmethodID gColorSpace_matchMethodID;
226
227 static jclass gColorSpaceRGB_class;
228 static jmethodID gColorSpaceRGB_constructorMethodID;
229
230 static jclass gColorSpace_Named_class;
231 static jfieldID gColorSpace_Named_sRGBFieldID;
232 static jfieldID gColorSpace_Named_ExtendedSRGBFieldID;
233 static jfieldID gColorSpace_Named_LinearSRGBFieldID;
234 static jfieldID gColorSpace_Named_LinearExtendedSRGBFieldID;
235
236 static jclass gTransferParameters_class;
237 static jmethodID gTransferParameters_constructorMethodID;
238
239 static jclass gFontMetrics_class;
240 static jfieldID gFontMetrics_top;
241 static jfieldID gFontMetrics_ascent;
242 static jfieldID gFontMetrics_descent;
243 static jfieldID gFontMetrics_bottom;
244 static jfieldID gFontMetrics_leading;
245
246 static jclass gFontMetricsInt_class;
247 static jfieldID gFontMetricsInt_top;
248 static jfieldID gFontMetricsInt_ascent;
249 static jfieldID gFontMetricsInt_descent;
250 static jfieldID gFontMetricsInt_bottom;
251 static jfieldID gFontMetricsInt_leading;
252
253 ///////////////////////////////////////////////////////////////////////////////
254
get_jrect(JNIEnv * env,jobject obj,int * L,int * T,int * R,int * B)255 void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B)
256 {
257 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
258
259 *L = env->GetIntField(obj, gRect_leftFieldID);
260 *T = env->GetIntField(obj, gRect_topFieldID);
261 *R = env->GetIntField(obj, gRect_rightFieldID);
262 *B = env->GetIntField(obj, gRect_bottomFieldID);
263 }
264
set_jrect(JNIEnv * env,jobject obj,int L,int T,int R,int B)265 void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B)
266 {
267 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
268
269 env->SetIntField(obj, gRect_leftFieldID, L);
270 env->SetIntField(obj, gRect_topFieldID, T);
271 env->SetIntField(obj, gRect_rightFieldID, R);
272 env->SetIntField(obj, gRect_bottomFieldID, B);
273 }
274
jrect_to_irect(JNIEnv * env,jobject obj,SkIRect * ir)275 SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir)
276 {
277 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
278
279 ir->setLTRB(env->GetIntField(obj, gRect_leftFieldID),
280 env->GetIntField(obj, gRect_topFieldID),
281 env->GetIntField(obj, gRect_rightFieldID),
282 env->GetIntField(obj, gRect_bottomFieldID));
283 return ir;
284 }
285
irect_to_jrect(const SkIRect & ir,JNIEnv * env,jobject obj)286 void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj)
287 {
288 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
289
290 env->SetIntField(obj, gRect_leftFieldID, ir.fLeft);
291 env->SetIntField(obj, gRect_topFieldID, ir.fTop);
292 env->SetIntField(obj, gRect_rightFieldID, ir.fRight);
293 env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom);
294 }
295
jrectf_to_rect(JNIEnv * env,jobject obj,SkRect * r)296 SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r)
297 {
298 ALOG_ASSERT(env->IsInstanceOf(obj, gRectF_class));
299
300 r->setLTRB(env->GetFloatField(obj, gRectF_leftFieldID),
301 env->GetFloatField(obj, gRectF_topFieldID),
302 env->GetFloatField(obj, gRectF_rightFieldID),
303 env->GetFloatField(obj, gRectF_bottomFieldID));
304 return r;
305 }
306
jrect_to_rect(JNIEnv * env,jobject obj,SkRect * r)307 SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r)
308 {
309 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
310
311 r->setLTRB(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)),
312 SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)),
313 SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)),
314 SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID)));
315 return r;
316 }
317
rect_to_jrectf(const SkRect & r,JNIEnv * env,jobject obj)318 void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj)
319 {
320 ALOG_ASSERT(env->IsInstanceOf(obj, gRectF_class));
321
322 env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft));
323 env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop));
324 env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight));
325 env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom));
326 }
327
jpoint_to_ipoint(JNIEnv * env,jobject obj,SkIPoint * point)328 SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point)
329 {
330 ALOG_ASSERT(env->IsInstanceOf(obj, gPoint_class));
331
332 point->set(env->GetIntField(obj, gPoint_xFieldID),
333 env->GetIntField(obj, gPoint_yFieldID));
334 return point;
335 }
336
ipoint_to_jpoint(const SkIPoint & ir,JNIEnv * env,jobject obj)337 void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj)
338 {
339 ALOG_ASSERT(env->IsInstanceOf(obj, gPoint_class));
340
341 env->SetIntField(obj, gPoint_xFieldID, ir.fX);
342 env->SetIntField(obj, gPoint_yFieldID, ir.fY);
343 }
344
jpointf_to_point(JNIEnv * env,jobject obj,SkPoint * point)345 SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point)
346 {
347 ALOG_ASSERT(env->IsInstanceOf(obj, gPointF_class));
348
349 point->set(env->GetIntField(obj, gPointF_xFieldID),
350 env->GetIntField(obj, gPointF_yFieldID));
351 return point;
352 }
353
point_to_jpointf(const SkPoint & r,JNIEnv * env,jobject obj)354 void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj)
355 {
356 ALOG_ASSERT(env->IsInstanceOf(obj, gPointF_class));
357
358 env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX));
359 env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY));
360 }
361
362 // See enum values in GraphicsJNI.h
colorTypeToLegacyBitmapConfig(SkColorType colorType)363 jint GraphicsJNI::colorTypeToLegacyBitmapConfig(SkColorType colorType) {
364 switch (colorType) {
365 case kRGBA_F16_SkColorType:
366 return kRGBA_16F_LegacyBitmapConfig;
367 case kN32_SkColorType:
368 return kARGB_8888_LegacyBitmapConfig;
369 case kARGB_4444_SkColorType:
370 return kARGB_4444_LegacyBitmapConfig;
371 case kRGB_565_SkColorType:
372 return kRGB_565_LegacyBitmapConfig;
373 case kAlpha_8_SkColorType:
374 return kA8_LegacyBitmapConfig;
375 case kRGBA_1010102_SkColorType:
376 return kRGBA_1010102_LegacyBitmapConfig;
377 case kUnknown_SkColorType:
378 default:
379 break;
380 }
381 return kNo_LegacyBitmapConfig;
382 }
383
legacyBitmapConfigToColorType(jint legacyConfig)384 SkColorType GraphicsJNI::legacyBitmapConfigToColorType(jint legacyConfig) {
385 const uint8_t gConfig2ColorType[] = {
386 kUnknown_SkColorType, kAlpha_8_SkColorType,
387 kUnknown_SkColorType, // Previously kIndex_8_SkColorType,
388 kRGB_565_SkColorType, kARGB_4444_SkColorType, kN32_SkColorType,
389 kRGBA_F16_SkColorType, kN32_SkColorType, kRGBA_1010102_SkColorType,
390 };
391
392 if (legacyConfig < 0 || legacyConfig > kLastEnum_LegacyBitmapConfig) {
393 legacyConfig = kNo_LegacyBitmapConfig;
394 }
395 return static_cast<SkColorType>(gConfig2ColorType[legacyConfig]);
396 }
397
getFormatFromConfig(JNIEnv * env,jobject jconfig)398 AndroidBitmapFormat GraphicsJNI::getFormatFromConfig(JNIEnv* env, jobject jconfig) {
399 ALOG_ASSERT(env);
400 if (NULL == jconfig) {
401 return ANDROID_BITMAP_FORMAT_NONE;
402 }
403 ALOG_ASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class));
404 jint javaConfigId = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
405
406 const AndroidBitmapFormat config2BitmapFormat[] = {
407 ANDROID_BITMAP_FORMAT_NONE, ANDROID_BITMAP_FORMAT_A_8,
408 ANDROID_BITMAP_FORMAT_NONE, // Previously Config.Index_8
409 ANDROID_BITMAP_FORMAT_RGB_565, ANDROID_BITMAP_FORMAT_RGBA_4444,
410 ANDROID_BITMAP_FORMAT_RGBA_8888, ANDROID_BITMAP_FORMAT_RGBA_F16,
411 ANDROID_BITMAP_FORMAT_NONE, // Congfig.HARDWARE
412 ANDROID_BITMAP_FORMAT_RGBA_1010102};
413 return config2BitmapFormat[javaConfigId];
414 }
415
getConfigFromFormat(JNIEnv * env,AndroidBitmapFormat format)416 jobject GraphicsJNI::getConfigFromFormat(JNIEnv* env, AndroidBitmapFormat format) {
417 ALOG_ASSERT(env);
418 jint configId = kNo_LegacyBitmapConfig;
419 switch (format) {
420 case ANDROID_BITMAP_FORMAT_A_8:
421 configId = kA8_LegacyBitmapConfig;
422 break;
423 case ANDROID_BITMAP_FORMAT_RGB_565:
424 configId = kRGB_565_LegacyBitmapConfig;
425 break;
426 case ANDROID_BITMAP_FORMAT_RGBA_4444:
427 configId = kARGB_4444_LegacyBitmapConfig;
428 break;
429 case ANDROID_BITMAP_FORMAT_RGBA_8888:
430 configId = kARGB_8888_LegacyBitmapConfig;
431 break;
432 case ANDROID_BITMAP_FORMAT_RGBA_F16:
433 configId = kRGBA_16F_LegacyBitmapConfig;
434 break;
435 case ANDROID_BITMAP_FORMAT_RGBA_1010102:
436 configId = kRGBA_1010102_LegacyBitmapConfig;
437 break;
438 default:
439 break;
440 }
441
442 return env->CallStaticObjectMethod(gBitmapConfig_class,
443 gBitmapConfig_nativeToConfigMethodID, configId);
444 }
445
getNativeBitmapColorType(JNIEnv * env,jobject jconfig)446 SkColorType GraphicsJNI::getNativeBitmapColorType(JNIEnv* env, jobject jconfig) {
447 ALOG_ASSERT(env);
448 if (NULL == jconfig) {
449 return kUnknown_SkColorType;
450 }
451 ALOG_ASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class));
452 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
453 return legacyBitmapConfigToColorType(c);
454 }
455
isHardwareConfig(JNIEnv * env,jobject jconfig)456 bool GraphicsJNI::isHardwareConfig(JNIEnv* env, jobject jconfig) {
457 ALOG_ASSERT(env);
458 if (NULL == jconfig) {
459 return false;
460 }
461 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
462 return c == kHardware_LegacyBitmapConfig;
463 }
464
hardwareLegacyBitmapConfig()465 jint GraphicsJNI::hardwareLegacyBitmapConfig() {
466 return kHardware_LegacyBitmapConfig;
467 }
468
getNativeCanvas(JNIEnv * env,jobject canvas)469 android::Canvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) {
470 ALOG_ASSERT(env);
471 ALOG_ASSERT(canvas);
472 ALOG_ASSERT(env->IsInstanceOf(canvas, gCanvas_class));
473 jlong canvasHandle = env->GetLongField(canvas, gCanvas_nativeInstanceID);
474 if (!canvasHandle) {
475 return NULL;
476 }
477 return reinterpret_cast<android::Canvas*>(canvasHandle);
478 }
479
getNativeRegion(JNIEnv * env,jobject region)480 SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region)
481 {
482 ALOG_ASSERT(env);
483 ALOG_ASSERT(region);
484 ALOG_ASSERT(env->IsInstanceOf(region, gRegion_class));
485 jlong regionHandle = env->GetLongField(region, gRegion_nativeInstanceID);
486 SkRegion* r = reinterpret_cast<SkRegion*>(regionHandle);
487 ALOG_ASSERT(r);
488 return r;
489 }
490
set_metrics(JNIEnv * env,jobject metrics,const SkFontMetrics & skmetrics)491 void GraphicsJNI::set_metrics(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) {
492 if (metrics == nullptr) return;
493 LOG_FATAL_IF(!env->IsInstanceOf(metrics, gFontMetrics_class));
494 env->SetFloatField(metrics, gFontMetrics_top, SkScalarToFloat(skmetrics.fTop));
495 env->SetFloatField(metrics, gFontMetrics_ascent, SkScalarToFloat(skmetrics.fAscent));
496 env->SetFloatField(metrics, gFontMetrics_descent, SkScalarToFloat(skmetrics.fDescent));
497 env->SetFloatField(metrics, gFontMetrics_bottom, SkScalarToFloat(skmetrics.fBottom));
498 env->SetFloatField(metrics, gFontMetrics_leading, SkScalarToFloat(skmetrics.fLeading));
499 }
500
set_metrics_int(JNIEnv * env,jobject metrics,const SkFontMetrics & skmetrics)501 int GraphicsJNI::set_metrics_int(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) {
502 int ascent = SkScalarRoundToInt(skmetrics.fAscent);
503 int descent = SkScalarRoundToInt(skmetrics.fDescent);
504 int leading = SkScalarRoundToInt(skmetrics.fLeading);
505
506 if (metrics) {
507 LOG_FATAL_IF(!env->IsInstanceOf(metrics, gFontMetricsInt_class));
508 env->SetIntField(metrics, gFontMetricsInt_top, SkScalarFloorToInt(skmetrics.fTop));
509 env->SetIntField(metrics, gFontMetricsInt_ascent, ascent);
510 env->SetIntField(metrics, gFontMetricsInt_descent, descent);
511 env->SetIntField(metrics, gFontMetricsInt_bottom, SkScalarCeilToInt(skmetrics.fBottom));
512 env->SetIntField(metrics, gFontMetricsInt_leading, leading);
513 }
514 return descent - ascent + leading;
515 }
516
517 ///////////////////////////////////////////////////////////////////////////////////////////
518
createBitmapRegionDecoder(JNIEnv * env,BitmapRegionDecoderWrapper * bitmap)519 jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, BitmapRegionDecoderWrapper* bitmap) {
520 ALOG_ASSERT(bitmap != NULL);
521
522 jobject obj = env->NewObject(gBitmapRegionDecoder_class,
523 gBitmapRegionDecoder_constructorMethodID,
524 reinterpret_cast<jlong>(bitmap));
525 hasException(env); // For the side effect of logging.
526 return obj;
527 }
528
createRegion(JNIEnv * env,SkRegion * region)529 jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region)
530 {
531 ALOG_ASSERT(region != NULL);
532 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID,
533 reinterpret_cast<jlong>(region), 0);
534 hasException(env); // For the side effect of logging.
535 return obj;
536 }
537
538 ///////////////////////////////////////////////////////////////////////////////
539
getColorSpace(JNIEnv * env,SkColorSpace * decodeColorSpace,SkColorType decodeColorType)540 jobject GraphicsJNI::getColorSpace(JNIEnv* env, SkColorSpace* decodeColorSpace,
541 SkColorType decodeColorType) {
542 if (!decodeColorSpace || decodeColorType == kAlpha_8_SkColorType) {
543 return nullptr;
544 }
545
546 // Special checks for the common sRGB cases and their extended variants.
547 jobject namedCS = nullptr;
548 sk_sp<SkColorSpace> srgbLinear = SkColorSpace::MakeSRGBLinear();
549 if (decodeColorType == kRGBA_F16_SkColorType) {
550 // An F16 Bitmap will always report that it is EXTENDED if
551 // it matches a ColorSpace that has an EXTENDED variant.
552 if (decodeColorSpace->isSRGB()) {
553 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
554 gColorSpace_Named_ExtendedSRGBFieldID);
555 } else if (decodeColorSpace == srgbLinear.get()) {
556 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
557 gColorSpace_Named_LinearExtendedSRGBFieldID);
558 }
559 } else if (decodeColorSpace->isSRGB()) {
560 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
561 gColorSpace_Named_sRGBFieldID);
562 } else if (decodeColorSpace == srgbLinear.get()) {
563 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
564 gColorSpace_Named_LinearSRGBFieldID);
565 }
566
567 if (namedCS) {
568 return env->CallStaticObjectMethod(gColorSpace_class, gColorSpace_getMethodID, namedCS);
569 }
570
571 // Try to match against known RGB color spaces using the CIE XYZ D50
572 // conversion matrix and numerical transfer function parameters
573 skcms_Matrix3x3 xyzMatrix;
574 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->toXYZD50(&xyzMatrix));
575
576 skcms_TransferFunction transferParams;
577 decodeColorSpace->transferFn(&transferParams);
578 auto res = skcms_TransferFunction_getType(&transferParams);
579 LOG_ALWAYS_FATAL_IF(res == skcms_TFType_HLGinvish || res == skcms_TFType_Invalid);
580
581 jobject params;
582 params = env->NewObject(gTransferParameters_class, gTransferParameters_constructorMethodID,
583 transferParams.a, transferParams.b, transferParams.c, transferParams.d,
584 transferParams.e, transferParams.f, transferParams.g);
585
586 jfloatArray xyzArray = env->NewFloatArray(9);
587 jfloat xyz[9] = {
588 xyzMatrix.vals[0][0],
589 xyzMatrix.vals[1][0],
590 xyzMatrix.vals[2][0],
591 xyzMatrix.vals[0][1],
592 xyzMatrix.vals[1][1],
593 xyzMatrix.vals[2][1],
594 xyzMatrix.vals[0][2],
595 xyzMatrix.vals[1][2],
596 xyzMatrix.vals[2][2]
597 };
598 env->SetFloatArrayRegion(xyzArray, 0, 9, xyz);
599
600 jobject colorSpace = env->CallStaticObjectMethod(gColorSpace_class,
601 gColorSpace_matchMethodID, xyzArray, params);
602
603 if (colorSpace == nullptr) {
604 // We couldn't find an exact match, let's create a new color space
605 // instance with the 3x3 conversion matrix and transfer function
606 colorSpace = env->NewObject(gColorSpaceRGB_class,
607 gColorSpaceRGB_constructorMethodID,
608 env->NewStringUTF("Unknown"), xyzArray, params);
609 }
610
611 env->DeleteLocalRef(xyzArray);
612 return colorSpace;
613 }
614
615 ///////////////////////////////////////////////////////////////////////////////
allocPixelRef(SkBitmap * bitmap)616 bool HeapAllocator::allocPixelRef(SkBitmap* bitmap) {
617 mStorage = android::Bitmap::allocateHeapBitmap(bitmap);
618 return !!mStorage;
619 }
620
621 ////////////////////////////////////////////////////////////////////////////////
622
RecyclingClippingPixelAllocator(android::Bitmap * recycledBitmap,bool mustMatchColorType)623 RecyclingClippingPixelAllocator::RecyclingClippingPixelAllocator(android::Bitmap* recycledBitmap,
624 bool mustMatchColorType)
625 : mRecycledBitmap(recycledBitmap)
626 , mRecycledBytes(recycledBitmap ? recycledBitmap->getAllocationByteCount() : 0)
627 , mSkiaBitmap(nullptr)
628 , mNeedsCopy(false)
629 , mMustMatchColorType(mustMatchColorType) {}
630
~RecyclingClippingPixelAllocator()631 RecyclingClippingPixelAllocator::~RecyclingClippingPixelAllocator() {}
632
allocPixelRef(SkBitmap * bitmap)633 bool RecyclingClippingPixelAllocator::allocPixelRef(SkBitmap* bitmap) {
634 // Ensure that the caller did not pass in a NULL bitmap to the constructor or this
635 // function.
636 LOG_ALWAYS_FATAL_IF(!mRecycledBitmap);
637 LOG_ALWAYS_FATAL_IF(!bitmap);
638 mSkiaBitmap = bitmap;
639
640 if (mMustMatchColorType) {
641 // This behaves differently than the RecyclingPixelAllocator. For backwards
642 // compatibility, the original color type of the recycled bitmap must be maintained.
643 if (mRecycledBitmap->info().colorType() != bitmap->colorType()) {
644 ALOGW("recycled color type %d != bitmap color type %d",
645 mRecycledBitmap->info().colorType(), bitmap->colorType());
646 return false;
647 }
648 } else {
649 mRecycledBitmap->reconfigure(mRecycledBitmap->info().makeColorType(bitmap->colorType()));
650 }
651
652 // The Skia bitmap specifies the width and height needed by the decoder.
653 // mRecycledBitmap specifies the width and height of the bitmap that we
654 // want to reuse. Neither can be changed. We will try to find a way
655 // to reuse the memory.
656 const int maxWidth = std::max(bitmap->width(), mRecycledBitmap->info().width());
657 const int maxHeight = std::max(bitmap->height(), mRecycledBitmap->info().height());
658 const SkImageInfo maxInfo = bitmap->info().makeWH(maxWidth, maxHeight);
659 const size_t rowBytes = maxInfo.minRowBytes();
660 const size_t bytesNeeded = maxInfo.computeByteSize(rowBytes);
661 if (bytesNeeded <= mRecycledBytes) {
662 // Here we take advantage of reconfigure() to reset the rowBytes
663 // of mRecycledBitmap. It is very important that we pass in
664 // mRecycledBitmap->info() for the SkImageInfo. According to the
665 // specification for BitmapRegionDecoder, we are not allowed to change
666 // the SkImageInfo.
667 // We can (must) preserve the color space since it doesn't affect the
668 // storage needs
669 mRecycledBitmap->reconfigure(
670 mRecycledBitmap->info().makeColorSpace(bitmap->refColorSpace()),
671 rowBytes);
672
673 // Give the bitmap the same pixelRef as mRecycledBitmap.
674 // skbug.com/4538: We also need to make sure that the rowBytes on the pixel ref
675 // match the rowBytes on the bitmap.
676 bitmap->setInfo(bitmap->info(), rowBytes);
677 bitmap->setPixelRef(sk_ref_sp(mRecycledBitmap), 0, 0);
678
679 // Make sure that the recycled bitmap has the correct alpha type.
680 mRecycledBitmap->setAlphaType(bitmap->alphaType());
681
682 bitmap->notifyPixelsChanged();
683 mNeedsCopy = false;
684
685 // TODO: If the dimensions of the SkBitmap are smaller than those of
686 // mRecycledBitmap, should we zero the memory in mRecycledBitmap?
687 return true;
688 }
689
690 // In the event that mRecycledBitmap is not large enough, allocate new memory
691 // on the heap.
692 SkBitmap::HeapAllocator heapAllocator;
693
694 // We will need to copy from heap memory to mRecycledBitmap's memory after the
695 // decode is complete.
696 mNeedsCopy = true;
697
698 return heapAllocator.allocPixelRef(bitmap);
699 }
700
copyIfNecessary()701 void RecyclingClippingPixelAllocator::copyIfNecessary() {
702 if (mNeedsCopy) {
703 mRecycledBitmap->ref();
704 android::Bitmap* recycledPixels = mRecycledBitmap;
705 void* dst = recycledPixels->pixels();
706 const size_t dstRowBytes = mRecycledBitmap->rowBytes();
707 const size_t bytesToCopy = std::min(mRecycledBitmap->info().minRowBytes(),
708 mSkiaBitmap->info().minRowBytes());
709 const int rowsToCopy = std::min(mRecycledBitmap->info().height(),
710 mSkiaBitmap->info().height());
711 for (int y = 0; y < rowsToCopy; y++) {
712 memcpy(dst, mSkiaBitmap->getAddr(0, y), bytesToCopy);
713 // Cast to bytes in order to apply the dstRowBytes offset correctly.
714 dst = reinterpret_cast<void*>(
715 reinterpret_cast<uint8_t*>(dst) + dstRowBytes);
716 }
717 recycledPixels->setAlphaType(mSkiaBitmap->alphaType());
718 recycledPixels->setColorSpace(mSkiaBitmap->refColorSpace());
719 recycledPixels->notifyPixelsChanged();
720 recycledPixels->unref();
721 }
722 mRecycledBitmap = nullptr;
723 mSkiaBitmap = nullptr;
724 }
725
726 ////////////////////////////////////////////////////////////////////////////////
727
AshmemPixelAllocator(JNIEnv * env)728 AshmemPixelAllocator::AshmemPixelAllocator(JNIEnv *env) {
729 LOG_ALWAYS_FATAL_IF(env->GetJavaVM(&mJavaVM) != JNI_OK,
730 "env->GetJavaVM failed");
731 }
732
allocPixelRef(SkBitmap * bitmap)733 bool AshmemPixelAllocator::allocPixelRef(SkBitmap* bitmap) {
734 mStorage = android::Bitmap::allocateAshmemBitmap(bitmap);
735 return !!mStorage;
736 }
737
738 ////////////////////////////////////////////////////////////////////////////////
739
register_android_graphics_Graphics(JNIEnv * env)740 int register_android_graphics_Graphics(JNIEnv* env)
741 {
742 jmethodID m;
743 jclass c;
744
745 gRect_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Rect"));
746 gRect_leftFieldID = GetFieldIDOrDie(env, gRect_class, "left", "I");
747 gRect_topFieldID = GetFieldIDOrDie(env, gRect_class, "top", "I");
748 gRect_rightFieldID = GetFieldIDOrDie(env, gRect_class, "right", "I");
749 gRect_bottomFieldID = GetFieldIDOrDie(env, gRect_class, "bottom", "I");
750
751 gRectF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/RectF"));
752 gRectF_leftFieldID = GetFieldIDOrDie(env, gRectF_class, "left", "F");
753 gRectF_topFieldID = GetFieldIDOrDie(env, gRectF_class, "top", "F");
754 gRectF_rightFieldID = GetFieldIDOrDie(env, gRectF_class, "right", "F");
755 gRectF_bottomFieldID = GetFieldIDOrDie(env, gRectF_class, "bottom", "F");
756
757 gPoint_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Point"));
758 gPoint_xFieldID = GetFieldIDOrDie(env, gPoint_class, "x", "I");
759 gPoint_yFieldID = GetFieldIDOrDie(env, gPoint_class, "y", "I");
760
761 gPointF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/PointF"));
762 gPointF_xFieldID = GetFieldIDOrDie(env, gPointF_class, "x", "F");
763 gPointF_yFieldID = GetFieldIDOrDie(env, gPointF_class, "y", "F");
764
765 gBitmapRegionDecoder_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/BitmapRegionDecoder"));
766 gBitmapRegionDecoder_constructorMethodID = GetMethodIDOrDie(env, gBitmapRegionDecoder_class, "<init>", "(J)V");
767
768 gBitmapConfig_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Bitmap$Config"));
769 gBitmapConfig_nativeInstanceID = GetFieldIDOrDie(env, gBitmapConfig_class, "nativeInt", "I");
770 gBitmapConfig_nativeToConfigMethodID = GetStaticMethodIDOrDie(env, gBitmapConfig_class,
771 "nativeToConfig",
772 "(I)Landroid/graphics/Bitmap$Config;");
773
774 gCanvas_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Canvas"));
775 gCanvas_nativeInstanceID = GetFieldIDOrDie(env, gCanvas_class, "mNativeCanvasWrapper", "J");
776
777 gPicture_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Picture"));
778 gPicture_nativeInstanceID = GetFieldIDOrDie(env, gPicture_class, "mNativePicture", "J");
779
780 gRegion_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Region"));
781 gRegion_nativeInstanceID = GetFieldIDOrDie(env, gRegion_class, "mNativeRegion", "J");
782 gRegion_constructorMethodID = GetMethodIDOrDie(env, gRegion_class, "<init>", "(JI)V");
783
784 c = env->FindClass("java/lang/Byte");
785 gByte_class = (jclass) env->NewGlobalRef(
786 env->GetStaticObjectField(c, env->GetStaticFieldID(c, "TYPE", "Ljava/lang/Class;")));
787
788 gVMRuntime_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "dalvik/system/VMRuntime"));
789 m = env->GetStaticMethodID(gVMRuntime_class, "getRuntime", "()Ldalvik/system/VMRuntime;");
790 gVMRuntime = env->NewGlobalRef(env->CallStaticObjectMethod(gVMRuntime_class, m));
791 gVMRuntime_newNonMovableArray = GetMethodIDOrDie(env, gVMRuntime_class, "newNonMovableArray",
792 "(Ljava/lang/Class;I)Ljava/lang/Object;");
793 gVMRuntime_addressOf = GetMethodIDOrDie(env, gVMRuntime_class, "addressOf", "(Ljava/lang/Object;)J");
794
795 gColorSpace_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/ColorSpace"));
796 gColorSpace_getMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class,
797 "get", "(Landroid/graphics/ColorSpace$Named;)Landroid/graphics/ColorSpace;");
798 gColorSpace_matchMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "match",
799 "([FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)Landroid/graphics/ColorSpace;");
800
801 gColorSpaceRGB_class = MakeGlobalRefOrDie(env,
802 FindClassOrDie(env, "android/graphics/ColorSpace$Rgb"));
803 gColorSpaceRGB_constructorMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class,
804 "<init>", "(Ljava/lang/String;[FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)V");
805
806 gColorSpace_Named_class = MakeGlobalRefOrDie(env,
807 FindClassOrDie(env, "android/graphics/ColorSpace$Named"));
808 gColorSpace_Named_sRGBFieldID = GetStaticFieldIDOrDie(env,
809 gColorSpace_Named_class, "SRGB", "Landroid/graphics/ColorSpace$Named;");
810 gColorSpace_Named_ExtendedSRGBFieldID = GetStaticFieldIDOrDie(env,
811 gColorSpace_Named_class, "EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;");
812 gColorSpace_Named_LinearSRGBFieldID = GetStaticFieldIDOrDie(env,
813 gColorSpace_Named_class, "LINEAR_SRGB", "Landroid/graphics/ColorSpace$Named;");
814 gColorSpace_Named_LinearExtendedSRGBFieldID = GetStaticFieldIDOrDie(env,
815 gColorSpace_Named_class, "LINEAR_EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;");
816
817 gTransferParameters_class = MakeGlobalRefOrDie(env, FindClassOrDie(env,
818 "android/graphics/ColorSpace$Rgb$TransferParameters"));
819 gTransferParameters_constructorMethodID =
820 GetMethodIDOrDie(env, gTransferParameters_class, "<init>", "(DDDDDDD)V");
821
822 gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics");
823 gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class);
824
825 gFontMetrics_top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F");
826 gFontMetrics_ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F");
827 gFontMetrics_descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F");
828 gFontMetrics_bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F");
829 gFontMetrics_leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F");
830
831 gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt");
832 gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class);
833
834 gFontMetricsInt_top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I");
835 gFontMetricsInt_ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I");
836 gFontMetricsInt_descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I");
837 gFontMetricsInt_bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I");
838 gFontMetricsInt_leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I");
839
840 return 0;
841 }
842