1 #include <assert.h>
2 #include <cutils/ashmem.h>
3 #include <hwui/Canvas.h>
4 #include <log/log.h>
5 #include <nativehelper/JNIHelp.h>
6 #include <unistd.h>
7
8 #include "GraphicsJNI.h"
9 #include "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkColor.h"
12 #include "SkColorSpace.h"
13 #include "SkFontMetrics.h"
14 #include "SkImageInfo.h"
15 #include "SkPixelRef.h"
16 #include "SkPoint.h"
17 #include "SkRect.h"
18 #include "SkRegion.h"
19 #include "SkSamplingOptions.h"
20 #include "SkTypes.h"
21 #include "jni.h"
22
23 using namespace android;
24
25 /*static*/ JavaVM* GraphicsJNI::mJavaVM = nullptr;
26
setJavaVM(JavaVM * javaVM)27 void GraphicsJNI::setJavaVM(JavaVM* javaVM) {
28 mJavaVM = javaVM;
29 }
30
31 /** return a pointer to the JNIEnv for this thread */
getJNIEnv()32 JNIEnv* GraphicsJNI::getJNIEnv() {
33 assert(mJavaVM != nullptr);
34 JNIEnv* env;
35 if (mJavaVM->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
36 return nullptr;
37 }
38 return env;
39 }
40
41 /** create a JNIEnv* for this thread or assert if one already exists */
attachJNIEnv(const char * envName)42 JNIEnv* GraphicsJNI::attachJNIEnv(const char* envName) {
43 assert(getJNIEnv() == nullptr);
44 JNIEnv* env = nullptr;
45 JavaVMAttachArgs args = { JNI_VERSION_1_4, envName, NULL };
46 int result = mJavaVM->AttachCurrentThread(&env, (void*) &args);
47 if (result != JNI_OK) {
48 ALOGE("thread attach failed: %#x", result);
49 }
50 return env;
51 }
52
53 /** detach the current thread from the JavaVM */
detachJNIEnv()54 void GraphicsJNI::detachJNIEnv() {
55 assert(mJavaVM != nullptr);
56 mJavaVM->DetachCurrentThread();
57 }
58
doThrowNPE(JNIEnv * env)59 void doThrowNPE(JNIEnv* env) {
60 jniThrowNullPointerException(env, NULL);
61 }
62
doThrowAIOOBE(JNIEnv * env)63 void doThrowAIOOBE(JNIEnv* env) {
64 jniThrowException(env, "java/lang/ArrayIndexOutOfBoundsException", NULL);
65 }
66
doThrowRE(JNIEnv * env,const char * msg)67 void doThrowRE(JNIEnv* env, const char* msg) {
68 jniThrowRuntimeException(env, msg);
69 }
70
doThrowIAE(JNIEnv * env,const char * msg)71 void doThrowIAE(JNIEnv* env, const char* msg) {
72 jniThrowException(env, "java/lang/IllegalArgumentException", msg);
73 }
74
doThrowISE(JNIEnv * env,const char * msg)75 void doThrowISE(JNIEnv* env, const char* msg) {
76 jniThrowException(env, "java/lang/IllegalStateException", msg);
77 }
78
doThrowOOME(JNIEnv * env,const char * msg)79 void doThrowOOME(JNIEnv* env, const char* msg) {
80 jniThrowException(env, "java/lang/OutOfMemoryError", msg);
81 }
82
doThrowIOE(JNIEnv * env,const char * msg)83 void doThrowIOE(JNIEnv* env, const char* msg) {
84 jniThrowException(env, "java/io/IOException", msg);
85 }
86
hasException(JNIEnv * env)87 bool GraphicsJNI::hasException(JNIEnv *env) {
88 if (env->ExceptionCheck() != 0) {
89 ALOGE("*** Uncaught exception returned from Java call!\n");
90 env->ExceptionDescribe();
91 return true;
92 }
93 return false;
94 }
95
96 ///////////////////////////////////////////////////////////////////////////////
97
AutoJavaFloatArray(JNIEnv * env,jfloatArray array,int minLength,JNIAccess access)98 AutoJavaFloatArray::AutoJavaFloatArray(JNIEnv* env, jfloatArray array,
99 int minLength, JNIAccess access)
100 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
101 ALOG_ASSERT(env);
102 if (array) {
103 fLen = env->GetArrayLength(array);
104 if (fLen < minLength) {
105 LOG_ALWAYS_FATAL("bad length");
106 }
107 fPtr = env->GetFloatArrayElements(array, NULL);
108 }
109 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0;
110 }
111
~AutoJavaFloatArray()112 AutoJavaFloatArray::~AutoJavaFloatArray() {
113 if (fPtr) {
114 fEnv->ReleaseFloatArrayElements(fArray, fPtr, fReleaseMode);
115 }
116 }
117
AutoJavaIntArray(JNIEnv * env,jintArray array,int minLength)118 AutoJavaIntArray::AutoJavaIntArray(JNIEnv* env, jintArray array,
119 int minLength)
120 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
121 ALOG_ASSERT(env);
122 if (array) {
123 fLen = env->GetArrayLength(array);
124 if (fLen < minLength) {
125 LOG_ALWAYS_FATAL("bad length");
126 }
127 fPtr = env->GetIntArrayElements(array, NULL);
128 }
129 }
130
~AutoJavaIntArray()131 AutoJavaIntArray::~AutoJavaIntArray() {
132 if (fPtr) {
133 fEnv->ReleaseIntArrayElements(fArray, fPtr, 0);
134 }
135 }
136
AutoJavaShortArray(JNIEnv * env,jshortArray array,int minLength,JNIAccess access)137 AutoJavaShortArray::AutoJavaShortArray(JNIEnv* env, jshortArray array,
138 int minLength, JNIAccess access)
139 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
140 ALOG_ASSERT(env);
141 if (array) {
142 fLen = env->GetArrayLength(array);
143 if (fLen < minLength) {
144 LOG_ALWAYS_FATAL("bad length");
145 }
146 fPtr = env->GetShortArrayElements(array, NULL);
147 }
148 fReleaseMode = (access == kRO_JNIAccess) ? JNI_ABORT : 0;
149 }
150
~AutoJavaShortArray()151 AutoJavaShortArray::~AutoJavaShortArray() {
152 if (fPtr) {
153 fEnv->ReleaseShortArrayElements(fArray, fPtr, fReleaseMode);
154 }
155 }
156
AutoJavaByteArray(JNIEnv * env,jbyteArray array,int minLength)157 AutoJavaByteArray::AutoJavaByteArray(JNIEnv* env, jbyteArray array,
158 int minLength)
159 : fEnv(env), fArray(array), fPtr(NULL), fLen(0) {
160 ALOG_ASSERT(env);
161 if (array) {
162 fLen = env->GetArrayLength(array);
163 if (fLen < minLength) {
164 LOG_ALWAYS_FATAL("bad length");
165 }
166 fPtr = env->GetByteArrayElements(array, NULL);
167 }
168 }
169
~AutoJavaByteArray()170 AutoJavaByteArray::~AutoJavaByteArray() {
171 if (fPtr) {
172 fEnv->ReleaseByteArrayElements(fArray, fPtr, 0);
173 }
174 }
175
176 ///////////////////////////////////////////////////////////////////////////////
177
178 static jclass gRect_class;
179 static jfieldID gRect_leftFieldID;
180 static jfieldID gRect_topFieldID;
181 static jfieldID gRect_rightFieldID;
182 static jfieldID gRect_bottomFieldID;
183
184 static jclass gRectF_class;
185 static jfieldID gRectF_leftFieldID;
186 static jfieldID gRectF_topFieldID;
187 static jfieldID gRectF_rightFieldID;
188 static jfieldID gRectF_bottomFieldID;
189
190 static jclass gPoint_class;
191 static jfieldID gPoint_xFieldID;
192 static jfieldID gPoint_yFieldID;
193
194 static jclass gPointF_class;
195 static jfieldID gPointF_xFieldID;
196 static jfieldID gPointF_yFieldID;
197
198 static jclass gBitmapConfig_class;
199 static jfieldID gBitmapConfig_nativeInstanceID;
200 static jmethodID gBitmapConfig_nativeToConfigMethodID;
201
202 static jclass gBitmapRegionDecoder_class;
203 static jmethodID gBitmapRegionDecoder_constructorMethodID;
204
205 static jclass gCanvas_class;
206 static jfieldID gCanvas_nativeInstanceID;
207
208 static jclass gPicture_class;
209 static jfieldID gPicture_nativeInstanceID;
210
211 static jclass gRegion_class;
212 static jfieldID gRegion_nativeInstanceID;
213 static jmethodID gRegion_constructorMethodID;
214
215 static jclass gByte_class;
216
217 static jclass gColorSpace_class;
218 static jmethodID gColorSpace_getMethodID;
219 static jmethodID gColorSpace_matchMethodID;
220
221 static jclass gColorSpaceRGB_class;
222 static jmethodID gColorSpaceRGB_constructorMethodID;
223
224 static jclass gColorSpace_Named_class;
225 static jfieldID gColorSpace_Named_sRGBFieldID;
226 static jfieldID gColorSpace_Named_ExtendedSRGBFieldID;
227 static jfieldID gColorSpace_Named_LinearSRGBFieldID;
228 static jfieldID gColorSpace_Named_LinearExtendedSRGBFieldID;
229
230 static jclass gTransferParameters_class;
231 static jmethodID gTransferParameters_constructorMethodID;
232
233 static jclass gFontMetrics_class;
234 static jfieldID gFontMetrics_top;
235 static jfieldID gFontMetrics_ascent;
236 static jfieldID gFontMetrics_descent;
237 static jfieldID gFontMetrics_bottom;
238 static jfieldID gFontMetrics_leading;
239
240 static jclass gFontMetricsInt_class;
241 static jfieldID gFontMetricsInt_top;
242 static jfieldID gFontMetricsInt_ascent;
243 static jfieldID gFontMetricsInt_descent;
244 static jfieldID gFontMetricsInt_bottom;
245 static jfieldID gFontMetricsInt_leading;
246
247 static jclass gRunInfo_class;
248 static jfieldID gRunInfo_clusterCount;
249
250 ///////////////////////////////////////////////////////////////////////////////
251
get_jrect(JNIEnv * env,jobject obj,int * L,int * T,int * R,int * B)252 void GraphicsJNI::get_jrect(JNIEnv* env, jobject obj, int* L, int* T, int* R, int* B)
253 {
254 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
255
256 *L = env->GetIntField(obj, gRect_leftFieldID);
257 *T = env->GetIntField(obj, gRect_topFieldID);
258 *R = env->GetIntField(obj, gRect_rightFieldID);
259 *B = env->GetIntField(obj, gRect_bottomFieldID);
260 }
261
set_jrect(JNIEnv * env,jobject obj,int L,int T,int R,int B)262 void GraphicsJNI::set_jrect(JNIEnv* env, jobject obj, int L, int T, int R, int B)
263 {
264 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
265
266 env->SetIntField(obj, gRect_leftFieldID, L);
267 env->SetIntField(obj, gRect_topFieldID, T);
268 env->SetIntField(obj, gRect_rightFieldID, R);
269 env->SetIntField(obj, gRect_bottomFieldID, B);
270 }
271
jrect_to_irect(JNIEnv * env,jobject obj,SkIRect * ir)272 SkIRect* GraphicsJNI::jrect_to_irect(JNIEnv* env, jobject obj, SkIRect* ir)
273 {
274 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
275
276 ir->setLTRB(env->GetIntField(obj, gRect_leftFieldID),
277 env->GetIntField(obj, gRect_topFieldID),
278 env->GetIntField(obj, gRect_rightFieldID),
279 env->GetIntField(obj, gRect_bottomFieldID));
280 return ir;
281 }
282
irect_to_jrect(const SkIRect & ir,JNIEnv * env,jobject obj)283 void GraphicsJNI::irect_to_jrect(const SkIRect& ir, JNIEnv* env, jobject obj)
284 {
285 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
286
287 env->SetIntField(obj, gRect_leftFieldID, ir.fLeft);
288 env->SetIntField(obj, gRect_topFieldID, ir.fTop);
289 env->SetIntField(obj, gRect_rightFieldID, ir.fRight);
290 env->SetIntField(obj, gRect_bottomFieldID, ir.fBottom);
291 }
292
jrectf_to_rect(JNIEnv * env,jobject obj,SkRect * r)293 SkRect* GraphicsJNI::jrectf_to_rect(JNIEnv* env, jobject obj, SkRect* r)
294 {
295 ALOG_ASSERT(env->IsInstanceOf(obj, gRectF_class));
296
297 r->setLTRB(env->GetFloatField(obj, gRectF_leftFieldID),
298 env->GetFloatField(obj, gRectF_topFieldID),
299 env->GetFloatField(obj, gRectF_rightFieldID),
300 env->GetFloatField(obj, gRectF_bottomFieldID));
301 return r;
302 }
303
jrect_to_rect(JNIEnv * env,jobject obj,SkRect * r)304 SkRect* GraphicsJNI::jrect_to_rect(JNIEnv* env, jobject obj, SkRect* r)
305 {
306 ALOG_ASSERT(env->IsInstanceOf(obj, gRect_class));
307
308 r->setLTRB(SkIntToScalar(env->GetIntField(obj, gRect_leftFieldID)),
309 SkIntToScalar(env->GetIntField(obj, gRect_topFieldID)),
310 SkIntToScalar(env->GetIntField(obj, gRect_rightFieldID)),
311 SkIntToScalar(env->GetIntField(obj, gRect_bottomFieldID)));
312 return r;
313 }
314
rect_to_jrectf(const SkRect & r,JNIEnv * env,jobject obj)315 void GraphicsJNI::rect_to_jrectf(const SkRect& r, JNIEnv* env, jobject obj)
316 {
317 ALOG_ASSERT(env->IsInstanceOf(obj, gRectF_class));
318
319 env->SetFloatField(obj, gRectF_leftFieldID, SkScalarToFloat(r.fLeft));
320 env->SetFloatField(obj, gRectF_topFieldID, SkScalarToFloat(r.fTop));
321 env->SetFloatField(obj, gRectF_rightFieldID, SkScalarToFloat(r.fRight));
322 env->SetFloatField(obj, gRectF_bottomFieldID, SkScalarToFloat(r.fBottom));
323 }
324
jpoint_to_ipoint(JNIEnv * env,jobject obj,SkIPoint * point)325 SkIPoint* GraphicsJNI::jpoint_to_ipoint(JNIEnv* env, jobject obj, SkIPoint* point)
326 {
327 ALOG_ASSERT(env->IsInstanceOf(obj, gPoint_class));
328
329 point->set(env->GetIntField(obj, gPoint_xFieldID),
330 env->GetIntField(obj, gPoint_yFieldID));
331 return point;
332 }
333
ipoint_to_jpoint(const SkIPoint & ir,JNIEnv * env,jobject obj)334 void GraphicsJNI::ipoint_to_jpoint(const SkIPoint& ir, JNIEnv* env, jobject obj)
335 {
336 ALOG_ASSERT(env->IsInstanceOf(obj, gPoint_class));
337
338 env->SetIntField(obj, gPoint_xFieldID, ir.fX);
339 env->SetIntField(obj, gPoint_yFieldID, ir.fY);
340 }
341
jpointf_to_point(JNIEnv * env,jobject obj,SkPoint * point)342 SkPoint* GraphicsJNI::jpointf_to_point(JNIEnv* env, jobject obj, SkPoint* point)
343 {
344 ALOG_ASSERT(env->IsInstanceOf(obj, gPointF_class));
345
346 point->set(env->GetIntField(obj, gPointF_xFieldID),
347 env->GetIntField(obj, gPointF_yFieldID));
348 return point;
349 }
350
point_to_jpointf(const SkPoint & r,JNIEnv * env,jobject obj)351 void GraphicsJNI::point_to_jpointf(const SkPoint& r, JNIEnv* env, jobject obj)
352 {
353 ALOG_ASSERT(env->IsInstanceOf(obj, gPointF_class));
354
355 env->SetFloatField(obj, gPointF_xFieldID, SkScalarToFloat(r.fX));
356 env->SetFloatField(obj, gPointF_yFieldID, SkScalarToFloat(r.fY));
357 }
358
359 // See enum values in GraphicsJNI.h
colorTypeToLegacyBitmapConfig(SkColorType colorType)360 jint GraphicsJNI::colorTypeToLegacyBitmapConfig(SkColorType colorType) {
361 switch (colorType) {
362 case kRGBA_F16_SkColorType:
363 return kRGBA_16F_LegacyBitmapConfig;
364 case kN32_SkColorType:
365 return kARGB_8888_LegacyBitmapConfig;
366 case kARGB_4444_SkColorType:
367 return kARGB_4444_LegacyBitmapConfig;
368 case kRGB_565_SkColorType:
369 return kRGB_565_LegacyBitmapConfig;
370 case kAlpha_8_SkColorType:
371 return kA8_LegacyBitmapConfig;
372 case kRGBA_1010102_SkColorType:
373 return kRGBA_1010102_LegacyBitmapConfig;
374 case kUnknown_SkColorType:
375 default:
376 break;
377 }
378 return kNo_LegacyBitmapConfig;
379 }
380
legacyBitmapConfigToColorType(jint legacyConfig)381 SkColorType GraphicsJNI::legacyBitmapConfigToColorType(jint legacyConfig) {
382 const uint8_t gConfig2ColorType[] = {
383 kUnknown_SkColorType, kAlpha_8_SkColorType,
384 kUnknown_SkColorType, // Previously kIndex_8_SkColorType,
385 kRGB_565_SkColorType, kARGB_4444_SkColorType, kN32_SkColorType,
386 kRGBA_F16_SkColorType, kN32_SkColorType, kRGBA_1010102_SkColorType,
387 };
388
389 if (legacyConfig < 0 || legacyConfig > kLastEnum_LegacyBitmapConfig) {
390 legacyConfig = kNo_LegacyBitmapConfig;
391 }
392 return static_cast<SkColorType>(gConfig2ColorType[legacyConfig]);
393 }
394
getFormatFromConfig(JNIEnv * env,jobject jconfig)395 AndroidBitmapFormat GraphicsJNI::getFormatFromConfig(JNIEnv* env, jobject jconfig) {
396 ALOG_ASSERT(env);
397 if (NULL == jconfig) {
398 return ANDROID_BITMAP_FORMAT_NONE;
399 }
400 ALOG_ASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class));
401 jint javaConfigId = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
402
403 const AndroidBitmapFormat config2BitmapFormat[] = {
404 ANDROID_BITMAP_FORMAT_NONE, ANDROID_BITMAP_FORMAT_A_8,
405 ANDROID_BITMAP_FORMAT_NONE, // Previously Config.Index_8
406 ANDROID_BITMAP_FORMAT_RGB_565, ANDROID_BITMAP_FORMAT_RGBA_4444,
407 ANDROID_BITMAP_FORMAT_RGBA_8888, ANDROID_BITMAP_FORMAT_RGBA_F16,
408 ANDROID_BITMAP_FORMAT_NONE, // Congfig.HARDWARE
409 ANDROID_BITMAP_FORMAT_RGBA_1010102};
410 return config2BitmapFormat[javaConfigId];
411 }
412
getConfigFromFormat(JNIEnv * env,AndroidBitmapFormat format)413 jobject GraphicsJNI::getConfigFromFormat(JNIEnv* env, AndroidBitmapFormat format) {
414 ALOG_ASSERT(env);
415 jint configId = kNo_LegacyBitmapConfig;
416 switch (format) {
417 case ANDROID_BITMAP_FORMAT_A_8:
418 configId = kA8_LegacyBitmapConfig;
419 break;
420 case ANDROID_BITMAP_FORMAT_RGB_565:
421 configId = kRGB_565_LegacyBitmapConfig;
422 break;
423 case ANDROID_BITMAP_FORMAT_RGBA_4444:
424 configId = kARGB_4444_LegacyBitmapConfig;
425 break;
426 case ANDROID_BITMAP_FORMAT_RGBA_8888:
427 configId = kARGB_8888_LegacyBitmapConfig;
428 break;
429 case ANDROID_BITMAP_FORMAT_RGBA_F16:
430 configId = kRGBA_16F_LegacyBitmapConfig;
431 break;
432 case ANDROID_BITMAP_FORMAT_RGBA_1010102:
433 configId = kRGBA_1010102_LegacyBitmapConfig;
434 break;
435 default:
436 break;
437 }
438
439 return env->CallStaticObjectMethod(gBitmapConfig_class,
440 gBitmapConfig_nativeToConfigMethodID, configId);
441 }
442
getNativeBitmapColorType(JNIEnv * env,jobject jconfig)443 SkColorType GraphicsJNI::getNativeBitmapColorType(JNIEnv* env, jobject jconfig) {
444 ALOG_ASSERT(env);
445 if (NULL == jconfig) {
446 return kUnknown_SkColorType;
447 }
448 ALOG_ASSERT(env->IsInstanceOf(jconfig, gBitmapConfig_class));
449 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
450 return legacyBitmapConfigToColorType(c);
451 }
452
isHardwareConfig(JNIEnv * env,jobject jconfig)453 bool GraphicsJNI::isHardwareConfig(JNIEnv* env, jobject jconfig) {
454 ALOG_ASSERT(env);
455 if (NULL == jconfig) {
456 return false;
457 }
458 int c = env->GetIntField(jconfig, gBitmapConfig_nativeInstanceID);
459 return c == kHardware_LegacyBitmapConfig;
460 }
461
hardwareLegacyBitmapConfig()462 jint GraphicsJNI::hardwareLegacyBitmapConfig() {
463 return kHardware_LegacyBitmapConfig;
464 }
465
getNativeCanvas(JNIEnv * env,jobject canvas)466 android::Canvas* GraphicsJNI::getNativeCanvas(JNIEnv* env, jobject canvas) {
467 ALOG_ASSERT(env);
468 ALOG_ASSERT(canvas);
469 ALOG_ASSERT(env->IsInstanceOf(canvas, gCanvas_class));
470 jlong canvasHandle = env->GetLongField(canvas, gCanvas_nativeInstanceID);
471 if (!canvasHandle) {
472 return NULL;
473 }
474 return reinterpret_cast<android::Canvas*>(canvasHandle);
475 }
476
getNativeRegion(JNIEnv * env,jobject region)477 SkRegion* GraphicsJNI::getNativeRegion(JNIEnv* env, jobject region)
478 {
479 ALOG_ASSERT(env);
480 ALOG_ASSERT(region);
481 ALOG_ASSERT(env->IsInstanceOf(region, gRegion_class));
482 jlong regionHandle = env->GetLongField(region, gRegion_nativeInstanceID);
483 SkRegion* r = reinterpret_cast<SkRegion*>(regionHandle);
484 ALOG_ASSERT(r);
485 return r;
486 }
487
set_metrics(JNIEnv * env,jobject metrics,const SkFontMetrics & skmetrics)488 void GraphicsJNI::set_metrics(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) {
489 if (metrics == nullptr) return;
490 LOG_FATAL_IF(!env->IsInstanceOf(metrics, gFontMetrics_class));
491 env->SetFloatField(metrics, gFontMetrics_top, SkScalarToFloat(skmetrics.fTop));
492 env->SetFloatField(metrics, gFontMetrics_ascent, SkScalarToFloat(skmetrics.fAscent));
493 env->SetFloatField(metrics, gFontMetrics_descent, SkScalarToFloat(skmetrics.fDescent));
494 env->SetFloatField(metrics, gFontMetrics_bottom, SkScalarToFloat(skmetrics.fBottom));
495 env->SetFloatField(metrics, gFontMetrics_leading, SkScalarToFloat(skmetrics.fLeading));
496 }
497
set_metrics_int(JNIEnv * env,jobject metrics,const SkFontMetrics & skmetrics)498 int GraphicsJNI::set_metrics_int(JNIEnv* env, jobject metrics, const SkFontMetrics& skmetrics) {
499 int ascent = SkScalarRoundToInt(skmetrics.fAscent);
500 int descent = SkScalarRoundToInt(skmetrics.fDescent);
501 int leading = SkScalarRoundToInt(skmetrics.fLeading);
502
503 if (metrics) {
504 LOG_FATAL_IF(!env->IsInstanceOf(metrics, gFontMetricsInt_class));
505 env->SetIntField(metrics, gFontMetricsInt_top, SkScalarFloorToInt(skmetrics.fTop));
506 env->SetIntField(metrics, gFontMetricsInt_ascent, ascent);
507 env->SetIntField(metrics, gFontMetricsInt_descent, descent);
508 env->SetIntField(metrics, gFontMetricsInt_bottom, SkScalarCeilToInt(skmetrics.fBottom));
509 env->SetIntField(metrics, gFontMetricsInt_leading, leading);
510 }
511 return descent - ascent + leading;
512 }
513
set_cluster_count_to_run_info(JNIEnv * env,jobject runInfo,jint clusterCount)514 void GraphicsJNI::set_cluster_count_to_run_info(JNIEnv* env, jobject runInfo, jint clusterCount) {
515 env->SetIntField(runInfo, gRunInfo_clusterCount, clusterCount);
516 }
517
518 ///////////////////////////////////////////////////////////////////////////////////////////
519
createBitmapRegionDecoder(JNIEnv * env,BitmapRegionDecoderWrapper * bitmap)520 jobject GraphicsJNI::createBitmapRegionDecoder(JNIEnv* env, BitmapRegionDecoderWrapper* bitmap) {
521 ALOG_ASSERT(bitmap != NULL);
522
523 jobject obj = env->NewObject(gBitmapRegionDecoder_class,
524 gBitmapRegionDecoder_constructorMethodID,
525 reinterpret_cast<jlong>(bitmap));
526 hasException(env); // For the side effect of logging.
527 return obj;
528 }
529
createRegion(JNIEnv * env,SkRegion * region)530 jobject GraphicsJNI::createRegion(JNIEnv* env, SkRegion* region)
531 {
532 ALOG_ASSERT(region != NULL);
533 jobject obj = env->NewObject(gRegion_class, gRegion_constructorMethodID,
534 reinterpret_cast<jlong>(region), 0);
535 hasException(env); // For the side effect of logging.
536 return obj;
537 }
538
539 ///////////////////////////////////////////////////////////////////////////////
540
getColorSpace(JNIEnv * env,SkColorSpace * decodeColorSpace,SkColorType decodeColorType)541 jobject GraphicsJNI::getColorSpace(JNIEnv* env, SkColorSpace* decodeColorSpace,
542 SkColorType decodeColorType) {
543 if (!decodeColorSpace || decodeColorType == kAlpha_8_SkColorType) {
544 return nullptr;
545 }
546
547 // Special checks for the common sRGB cases and their extended variants.
548 jobject namedCS = nullptr;
549 sk_sp<SkColorSpace> srgbLinear = SkColorSpace::MakeSRGBLinear();
550 if (decodeColorType == kRGBA_F16_SkColorType) {
551 // An F16 Bitmap will always report that it is EXTENDED if
552 // it matches a ColorSpace that has an EXTENDED variant.
553 if (decodeColorSpace->isSRGB()) {
554 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
555 gColorSpace_Named_ExtendedSRGBFieldID);
556 } else if (decodeColorSpace == srgbLinear.get()) {
557 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
558 gColorSpace_Named_LinearExtendedSRGBFieldID);
559 }
560 } else if (decodeColorSpace->isSRGB()) {
561 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
562 gColorSpace_Named_sRGBFieldID);
563 } else if (decodeColorSpace == srgbLinear.get()) {
564 namedCS = env->GetStaticObjectField(gColorSpace_Named_class,
565 gColorSpace_Named_LinearSRGBFieldID);
566 }
567
568 if (namedCS) {
569 return env->CallStaticObjectMethod(gColorSpace_class, gColorSpace_getMethodID, namedCS);
570 }
571
572 // Try to match against known RGB color spaces using the CIE XYZ D50
573 // conversion matrix and numerical transfer function parameters
574 skcms_Matrix3x3 xyzMatrix;
575 LOG_ALWAYS_FATAL_IF(!decodeColorSpace->toXYZD50(&xyzMatrix));
576
577 skcms_TransferFunction transferParams;
578 decodeColorSpace->transferFn(&transferParams);
579 auto res = skcms_TransferFunction_getType(&transferParams);
580 LOG_ALWAYS_FATAL_IF(res == skcms_TFType_HLGinvish || res == skcms_TFType_Invalid);
581
582 jobject params;
583 params = env->NewObject(gTransferParameters_class, gTransferParameters_constructorMethodID,
584 transferParams.a, transferParams.b, transferParams.c, transferParams.d,
585 transferParams.e, transferParams.f, transferParams.g);
586
587 // Some transfer functions that are considered valid by Skia are not
588 // accepted by android.graphics.
589 if (hasException(env)) {
590 // Callers (e.g. Bitmap#getColorSpace) are not expected to throw an
591 // Exception, so clear it and return null, which is a documented
592 // possibility.
593 env->ExceptionClear();
594 return nullptr;
595 }
596
597 jfloatArray xyzArray = env->NewFloatArray(9);
598 jfloat xyz[9] = {
599 xyzMatrix.vals[0][0],
600 xyzMatrix.vals[1][0],
601 xyzMatrix.vals[2][0],
602 xyzMatrix.vals[0][1],
603 xyzMatrix.vals[1][1],
604 xyzMatrix.vals[2][1],
605 xyzMatrix.vals[0][2],
606 xyzMatrix.vals[1][2],
607 xyzMatrix.vals[2][2]
608 };
609 env->SetFloatArrayRegion(xyzArray, 0, 9, xyz);
610
611 jobject colorSpace = env->CallStaticObjectMethod(gColorSpace_class,
612 gColorSpace_matchMethodID, xyzArray, params);
613
614 if (colorSpace == nullptr) {
615 // We couldn't find an exact match, let's create a new color space
616 // instance with the 3x3 conversion matrix and transfer function
617 colorSpace = env->NewObject(gColorSpaceRGB_class,
618 gColorSpaceRGB_constructorMethodID,
619 env->NewStringUTF("Unknown"), xyzArray, params);
620 }
621
622 env->DeleteLocalRef(xyzArray);
623 return colorSpace;
624 }
625
626 ///////////////////////////////////////////////////////////////////////////////
allocPixelRef(SkBitmap * bitmap)627 bool HeapAllocator::allocPixelRef(SkBitmap* bitmap) {
628 mStorage = android::Bitmap::allocateHeapBitmap(bitmap);
629 return !!mStorage;
630 }
631
632 ////////////////////////////////////////////////////////////////////////////////
633
RecyclingClippingPixelAllocator(android::Bitmap * recycledBitmap,bool mustMatchColorType,std::optional<SkRect> desiredSubset)634 RecyclingClippingPixelAllocator::RecyclingClippingPixelAllocator(
635 android::Bitmap* recycledBitmap, bool mustMatchColorType,
636 std::optional<SkRect> desiredSubset)
637 : mRecycledBitmap(recycledBitmap)
638 , mRecycledBytes(recycledBitmap ? recycledBitmap->getAllocationByteCount() : 0)
639 , mSkiaBitmap(nullptr)
640 , mNeedsCopy(false)
641 , mMustMatchColorType(mustMatchColorType)
642 , mDesiredSubset(getSourceBoundsForUpsample(desiredSubset)) {}
643
~RecyclingClippingPixelAllocator()644 RecyclingClippingPixelAllocator::~RecyclingClippingPixelAllocator() {}
645
allocPixelRef(SkBitmap * bitmap)646 bool RecyclingClippingPixelAllocator::allocPixelRef(SkBitmap* bitmap) {
647 // Ensure that the caller did not pass in a NULL bitmap to the constructor or this
648 // function.
649 LOG_ALWAYS_FATAL_IF(!mRecycledBitmap);
650 LOG_ALWAYS_FATAL_IF(!bitmap);
651 mSkiaBitmap = bitmap;
652
653 if (mMustMatchColorType) {
654 // This behaves differently than the RecyclingPixelAllocator. For backwards
655 // compatibility, the original color type of the recycled bitmap must be maintained.
656 if (mRecycledBitmap->info().colorType() != bitmap->colorType()) {
657 ALOGW("recycled color type %d != bitmap color type %d",
658 mRecycledBitmap->info().colorType(), bitmap->colorType());
659 return false;
660 }
661 } else {
662 mRecycledBitmap->reconfigure(mRecycledBitmap->info().makeColorType(bitmap->colorType()));
663 }
664
665 // The Skia bitmap specifies the width and height needed by the decoder.
666 // mRecycledBitmap specifies the width and height of the bitmap that we
667 // want to reuse. Neither can be changed. We will try to find a way
668 // to reuse the memory.
669 const int maxWidth = std::max(bitmap->width(), mRecycledBitmap->info().width());
670 const int maxHeight = std::max(bitmap->height(), mRecycledBitmap->info().height());
671 const SkImageInfo maxInfo = bitmap->info().makeWH(maxWidth, maxHeight);
672 const size_t rowBytes = maxInfo.minRowBytes();
673 const size_t bytesNeeded = maxInfo.computeByteSize(rowBytes);
674
675 if (!mDesiredSubset && bytesNeeded <= mRecycledBytes) {
676 // Here we take advantage of reconfigure() to reset the rowBytes
677 // of mRecycledBitmap. It is very important that we pass in
678 // mRecycledBitmap->info() for the SkImageInfo. According to the
679 // specification for BitmapRegionDecoder, we are not allowed to change
680 // the SkImageInfo.
681 // We can (must) preserve the color space since it doesn't affect the
682 // storage needs
683 mRecycledBitmap->reconfigure(
684 mRecycledBitmap->info().makeColorSpace(bitmap->refColorSpace()),
685 rowBytes);
686
687 // Give the bitmap the same pixelRef as mRecycledBitmap.
688 // skbug.com/4538: We also need to make sure that the rowBytes on the pixel ref
689 // match the rowBytes on the bitmap.
690 bitmap->setInfo(bitmap->info(), rowBytes);
691 bitmap->setPixelRef(sk_ref_sp(mRecycledBitmap), 0, 0);
692
693 // Make sure that the recycled bitmap has the correct alpha type.
694 mRecycledBitmap->setAlphaType(bitmap->alphaType());
695
696 bitmap->notifyPixelsChanged();
697 mNeedsCopy = false;
698
699 // TODO: If the dimensions of the SkBitmap are smaller than those of
700 // mRecycledBitmap, should we zero the memory in mRecycledBitmap?
701 return true;
702 }
703
704 // In the event that mRecycledBitmap is not large enough, allocate new memory
705 // on the heap.
706 SkBitmap::HeapAllocator heapAllocator;
707
708 // We will need to copy from heap memory to mRecycledBitmap's memory after the
709 // decode is complete.
710 mNeedsCopy = true;
711
712 return heapAllocator.allocPixelRef(bitmap);
713 }
714
copyIfNecessary()715 void RecyclingClippingPixelAllocator::copyIfNecessary() {
716 if (mNeedsCopy) {
717 mRecycledBitmap->ref();
718 android::Bitmap* recycledPixels = mRecycledBitmap;
719 if (mDesiredSubset) {
720 recycledPixels->setAlphaType(mSkiaBitmap->alphaType());
721 recycledPixels->setColorSpace(mSkiaBitmap->refColorSpace());
722
723 auto canvas = SkCanvas(recycledPixels->getSkBitmap());
724 SkRect destination = SkRect::Make(recycledPixels->info().bounds());
725 destination.intersect(SkRect::Make(mSkiaBitmap->info().bounds()));
726 canvas.drawImageRect(mSkiaBitmap->asImage(), *mDesiredSubset, destination,
727 SkSamplingOptions(SkFilterMode::kLinear), nullptr,
728 SkCanvas::kFast_SrcRectConstraint);
729 } else {
730 void* dst = recycledPixels->pixels();
731 const size_t dstRowBytes = mRecycledBitmap->rowBytes();
732 const size_t bytesToCopy = std::min(mRecycledBitmap->info().minRowBytes(),
733 mSkiaBitmap->info().minRowBytes());
734 const int rowsToCopy =
735 std::min(mRecycledBitmap->info().height(), mSkiaBitmap->info().height());
736 for (int y = 0; y < rowsToCopy; y++) {
737 memcpy(dst, mSkiaBitmap->getAddr(0, y), bytesToCopy);
738 // Cast to bytes in order to apply the dstRowBytes offset correctly.
739 dst = reinterpret_cast<void*>(reinterpret_cast<uint8_t*>(dst) + dstRowBytes);
740 }
741 recycledPixels->setAlphaType(mSkiaBitmap->alphaType());
742 recycledPixels->setColorSpace(mSkiaBitmap->refColorSpace());
743 }
744 recycledPixels->notifyPixelsChanged();
745 recycledPixels->unref();
746 }
747 mRecycledBitmap = nullptr;
748 mSkiaBitmap = nullptr;
749 }
750
getSourceBoundsForUpsample(std::optional<SkRect> subset)751 std::optional<SkRect> RecyclingClippingPixelAllocator::getSourceBoundsForUpsample(
752 std::optional<SkRect> subset) {
753 if (!uirenderer::Properties::resampleGainmapRegions() || !subset || subset->isEmpty()) {
754 return std::nullopt;
755 }
756
757 if (subset->left() == floor(subset->left()) && subset->top() == floor(subset->top()) &&
758 subset->right() == floor(subset->right()) && subset->bottom() == floor(subset->bottom())) {
759 return std::nullopt;
760 }
761
762 return subset;
763 }
764
765 ////////////////////////////////////////////////////////////////////////////////
766
AshmemPixelAllocator(JNIEnv * env)767 AshmemPixelAllocator::AshmemPixelAllocator(JNIEnv *env) {
768 LOG_ALWAYS_FATAL_IF(env->GetJavaVM(&mJavaVM) != JNI_OK,
769 "env->GetJavaVM failed");
770 }
771
allocPixelRef(SkBitmap * bitmap)772 bool AshmemPixelAllocator::allocPixelRef(SkBitmap* bitmap) {
773 mStorage = android::Bitmap::allocateAshmemBitmap(bitmap);
774 return !!mStorage;
775 }
776
777 ////////////////////////////////////////////////////////////////////////////////
778
register_android_graphics_Graphics(JNIEnv * env)779 int register_android_graphics_Graphics(JNIEnv* env)
780 {
781 jmethodID m;
782 jclass c;
783
784 gRect_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Rect"));
785 gRect_leftFieldID = GetFieldIDOrDie(env, gRect_class, "left", "I");
786 gRect_topFieldID = GetFieldIDOrDie(env, gRect_class, "top", "I");
787 gRect_rightFieldID = GetFieldIDOrDie(env, gRect_class, "right", "I");
788 gRect_bottomFieldID = GetFieldIDOrDie(env, gRect_class, "bottom", "I");
789
790 gRectF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/RectF"));
791 gRectF_leftFieldID = GetFieldIDOrDie(env, gRectF_class, "left", "F");
792 gRectF_topFieldID = GetFieldIDOrDie(env, gRectF_class, "top", "F");
793 gRectF_rightFieldID = GetFieldIDOrDie(env, gRectF_class, "right", "F");
794 gRectF_bottomFieldID = GetFieldIDOrDie(env, gRectF_class, "bottom", "F");
795
796 gPoint_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Point"));
797 gPoint_xFieldID = GetFieldIDOrDie(env, gPoint_class, "x", "I");
798 gPoint_yFieldID = GetFieldIDOrDie(env, gPoint_class, "y", "I");
799
800 gPointF_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/PointF"));
801 gPointF_xFieldID = GetFieldIDOrDie(env, gPointF_class, "x", "F");
802 gPointF_yFieldID = GetFieldIDOrDie(env, gPointF_class, "y", "F");
803
804 gBitmapRegionDecoder_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/BitmapRegionDecoder"));
805 gBitmapRegionDecoder_constructorMethodID = GetMethodIDOrDie(env, gBitmapRegionDecoder_class, "<init>", "(J)V");
806
807 gBitmapConfig_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Bitmap$Config"));
808 gBitmapConfig_nativeInstanceID = GetFieldIDOrDie(env, gBitmapConfig_class, "nativeInt", "I");
809 gBitmapConfig_nativeToConfigMethodID = GetStaticMethodIDOrDie(env, gBitmapConfig_class,
810 "nativeToConfig",
811 "(I)Landroid/graphics/Bitmap$Config;");
812
813 gCanvas_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Canvas"));
814 gCanvas_nativeInstanceID = GetFieldIDOrDie(env, gCanvas_class, "mNativeCanvasWrapper", "J");
815
816 gPicture_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Picture"));
817 gPicture_nativeInstanceID = GetFieldIDOrDie(env, gPicture_class, "mNativePicture", "J");
818
819 gRegion_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/Region"));
820 gRegion_nativeInstanceID = GetFieldIDOrDie(env, gRegion_class, "mNativeRegion", "J");
821 gRegion_constructorMethodID = GetMethodIDOrDie(env, gRegion_class, "<init>", "(JI)V");
822
823 c = env->FindClass("java/lang/Byte");
824 gByte_class = (jclass) env->NewGlobalRef(
825 env->GetStaticObjectField(c, env->GetStaticFieldID(c, "TYPE", "Ljava/lang/Class;")));
826
827 gColorSpace_class = MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/graphics/ColorSpace"));
828 gColorSpace_getMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class,
829 "get", "(Landroid/graphics/ColorSpace$Named;)Landroid/graphics/ColorSpace;");
830 gColorSpace_matchMethodID = GetStaticMethodIDOrDie(env, gColorSpace_class, "match",
831 "([FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)Landroid/graphics/ColorSpace;");
832
833 gColorSpaceRGB_class = MakeGlobalRefOrDie(env,
834 FindClassOrDie(env, "android/graphics/ColorSpace$Rgb"));
835 gColorSpaceRGB_constructorMethodID = GetMethodIDOrDie(env, gColorSpaceRGB_class,
836 "<init>", "(Ljava/lang/String;[FLandroid/graphics/ColorSpace$Rgb$TransferParameters;)V");
837
838 gColorSpace_Named_class = MakeGlobalRefOrDie(env,
839 FindClassOrDie(env, "android/graphics/ColorSpace$Named"));
840 gColorSpace_Named_sRGBFieldID = GetStaticFieldIDOrDie(env,
841 gColorSpace_Named_class, "SRGB", "Landroid/graphics/ColorSpace$Named;");
842 gColorSpace_Named_ExtendedSRGBFieldID = GetStaticFieldIDOrDie(env,
843 gColorSpace_Named_class, "EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;");
844 gColorSpace_Named_LinearSRGBFieldID = GetStaticFieldIDOrDie(env,
845 gColorSpace_Named_class, "LINEAR_SRGB", "Landroid/graphics/ColorSpace$Named;");
846 gColorSpace_Named_LinearExtendedSRGBFieldID = GetStaticFieldIDOrDie(env,
847 gColorSpace_Named_class, "LINEAR_EXTENDED_SRGB", "Landroid/graphics/ColorSpace$Named;");
848
849 gTransferParameters_class = MakeGlobalRefOrDie(env, FindClassOrDie(env,
850 "android/graphics/ColorSpace$Rgb$TransferParameters"));
851 gTransferParameters_constructorMethodID =
852 GetMethodIDOrDie(env, gTransferParameters_class, "<init>", "(DDDDDDD)V");
853
854 gFontMetrics_class = FindClassOrDie(env, "android/graphics/Paint$FontMetrics");
855 gFontMetrics_class = MakeGlobalRefOrDie(env, gFontMetrics_class);
856
857 gFontMetrics_top = GetFieldIDOrDie(env, gFontMetrics_class, "top", "F");
858 gFontMetrics_ascent = GetFieldIDOrDie(env, gFontMetrics_class, "ascent", "F");
859 gFontMetrics_descent = GetFieldIDOrDie(env, gFontMetrics_class, "descent", "F");
860 gFontMetrics_bottom = GetFieldIDOrDie(env, gFontMetrics_class, "bottom", "F");
861 gFontMetrics_leading = GetFieldIDOrDie(env, gFontMetrics_class, "leading", "F");
862
863 gFontMetricsInt_class = FindClassOrDie(env, "android/graphics/Paint$FontMetricsInt");
864 gFontMetricsInt_class = MakeGlobalRefOrDie(env, gFontMetricsInt_class);
865
866 gFontMetricsInt_top = GetFieldIDOrDie(env, gFontMetricsInt_class, "top", "I");
867 gFontMetricsInt_ascent = GetFieldIDOrDie(env, gFontMetricsInt_class, "ascent", "I");
868 gFontMetricsInt_descent = GetFieldIDOrDie(env, gFontMetricsInt_class, "descent", "I");
869 gFontMetricsInt_bottom = GetFieldIDOrDie(env, gFontMetricsInt_class, "bottom", "I");
870 gFontMetricsInt_leading = GetFieldIDOrDie(env, gFontMetricsInt_class, "leading", "I");
871
872 gRunInfo_class = FindClassOrDie(env, "android/graphics/Paint$RunInfo");
873 gRunInfo_class = MakeGlobalRefOrDie(env, gRunInfo_class);
874
875 gRunInfo_clusterCount = GetFieldIDOrDie(env, gRunInfo_class, "mClusterCount", "I");
876
877 return 0;
878 }
879