android_view_GLES20Canvas.cpp revision bdb801ca993bcccbf2a4c2401d1720c3fa523777
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "OpenGLRenderer" 18 19#include "jni.h" 20#include <nativehelper/JNIHelp.h> 21#include <android_runtime/AndroidRuntime.h> 22#include <utils/ResourceTypes.h> 23 24#include <SkBitmap.h> 25#include <SkCanvas.h> 26#include <SkMatrix.h> 27#include <SkPaint.h> 28#include <SkRegion.h> 29#include <SkScalerContext.h> 30#include <SkTemplates.h> 31#include <SkXfermode.h> 32 33#include <DisplayListRenderer.h> 34#include <OpenGLDebugRenderer.h> 35#include <OpenGLRenderer.h> 36#include <SkiaShader.h> 37#include <SkiaColorFilter.h> 38#include <Rect.h> 39 40#include "TextLayout.h" 41 42namespace android { 43 44using namespace uirenderer; 45 46/** 47 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported 48 * devices. This means all the logic must be compiled only when the 49 * preprocessor variable USE_OPENGL_RENDERER is defined. 50 */ 51#ifdef USE_OPENGL_RENDERER 52 53/////////////////////////////////////////////////////////////////////////////// 54// Defines 55/////////////////////////////////////////////////////////////////////////////// 56 57// Debug 58#define DEBUG_RENDERER 0 59#define PROFILE_RENDERER 0 60 61// Debug 62#if DEBUG_RENDERER 63 #define RENDERER_LOGD(...) LOGD(__VA_ARGS__) 64#else 65 #define RENDERER_LOGD(...) 66#endif 67 68// ---------------------------------------------------------------------------- 69// Java APIs 70// ---------------------------------------------------------------------------- 71 72static struct { 73 jclass clazz; 74 jmethodID set; 75} gRectClassInfo; 76 77// ---------------------------------------------------------------------------- 78// Constructors 79// ---------------------------------------------------------------------------- 80 81static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject canvas) { 82 RENDERER_LOGD("Create OpenGLRenderer"); 83#if PROFILE_RENDERER 84 return new OpenGLDebugRenderer; 85#else 86 return new OpenGLRenderer; 87#endif 88} 89 90static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject canvas, 91 OpenGLRenderer* renderer) { 92 RENDERER_LOGD("Destroy OpenGLRenderer"); 93 delete renderer; 94} 95 96// ---------------------------------------------------------------------------- 97// Setup 98// ---------------------------------------------------------------------------- 99 100static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject canvas, 101 OpenGLRenderer* renderer, jint width, jint height) { 102 renderer->setViewport(width, height); 103} 104 105static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject canvas, 106 OpenGLRenderer* renderer) { 107 renderer->prepare(); 108} 109 110static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject canvas, 111 OpenGLRenderer* renderer) { 112 renderer->finish(); 113} 114 115static void android_view_GLES20Canvas_acquireContext(JNIEnv* env, jobject canvas, 116 OpenGLRenderer* renderer) { 117 renderer->acquireContext(); 118} 119 120static void android_view_GLES20Canvas_releaseContext(JNIEnv* env, jobject canvas, 121 OpenGLRenderer* renderer) { 122 renderer->releaseContext(); 123} 124 125// ---------------------------------------------------------------------------- 126// State 127// ---------------------------------------------------------------------------- 128 129static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, 130 jint flags) { 131 return renderer->save(flags); 132} 133 134static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject canvas, 135 OpenGLRenderer* renderer) { 136 return renderer->getSaveCount(); 137} 138 139static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject canvas, 140 OpenGLRenderer* renderer) { 141 renderer->restore(); 142} 143 144static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject canvas, 145 OpenGLRenderer* renderer, jint saveCount) { 146 renderer->restoreToCount(saveCount); 147} 148 149// ---------------------------------------------------------------------------- 150// Layers 151// ---------------------------------------------------------------------------- 152 153static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject canvas, 154 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 155 SkPaint* paint, jint saveFlags) { 156 return renderer->saveLayer(left, top, right, bottom, paint, saveFlags); 157} 158 159static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject canvas, 160 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 161 jint alpha, jint saveFlags) { 162 return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); 163} 164 165// ---------------------------------------------------------------------------- 166// Clipping 167// ---------------------------------------------------------------------------- 168 169static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject canvas, 170 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 171 SkCanvas::EdgeType edge) { 172 return renderer->quickReject(left, top, right, bottom); 173} 174 175static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject canvas, 176 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 177 SkRegion::Op op) { 178 return renderer->clipRect(left, top, right, bottom, op); 179} 180 181static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject canvas, 182 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 183 SkRegion::Op op) { 184 return renderer->clipRect(float(left), float(top), float(right), float(bottom), op); 185} 186 187static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject canvas, 188 OpenGLRenderer* renderer, jobject rect) { 189 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 190 191 env->CallVoidMethod(rect, gRectClassInfo.set, 192 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 193 194 return !bounds.isEmpty(); 195} 196 197// ---------------------------------------------------------------------------- 198// Transforms 199// ---------------------------------------------------------------------------- 200 201static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject canvas, 202 OpenGLRenderer* renderer, jfloat dx, jfloat dy) { 203 renderer->translate(dx, dy); 204} 205 206static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject canvas, 207 OpenGLRenderer* renderer, jfloat degrees) { 208 renderer->rotate(degrees); 209} 210 211static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject canvas, 212 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 213 renderer->scale(sx, sy); 214} 215 216static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject canvas, 217 OpenGLRenderer* renderer, SkMatrix* matrix) { 218 renderer->setMatrix(matrix); 219} 220 221static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject canvas, 222 OpenGLRenderer* renderer, SkMatrix* matrix) { 223 renderer->getMatrix(matrix); 224} 225 226static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject canvas, 227 OpenGLRenderer* renderer, SkMatrix* matrix) { 228 renderer->concatMatrix(matrix); 229} 230 231// ---------------------------------------------------------------------------- 232// Drawing 233// ---------------------------------------------------------------------------- 234 235static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject canvas, 236 OpenGLRenderer* renderer, SkBitmap* bitmap, float left, float top, SkPaint* paint) { 237 renderer->drawBitmap(bitmap, left, top, paint); 238} 239 240static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject canvas, 241 OpenGLRenderer* renderer, SkBitmap* bitmap, 242 float srcLeft, float srcTop, float srcRight, float srcBottom, 243 float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) { 244 renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, 245 dstLeft, dstTop, dstRight, dstBottom, paint); 246} 247 248static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject canvas, 249 OpenGLRenderer* renderer, SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { 250 renderer->drawBitmap(bitmap, matrix, paint); 251} 252 253static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject canvas, 254 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray chunks, 255 float left, float top, float right, float bottom, SkPaint* paint) { 256 jbyte* storage = env->GetByteArrayElements(chunks, NULL); 257 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage); 258 Res_png_9patch::deserialize(patch); 259 260 renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0], 261 patch->numXDivs, patch->numYDivs, left, top, right, bottom, paint); 262 263 env->ReleaseByteArrayElements(chunks, storage, 0); 264} 265 266static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject canvas, 267 OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) { 268 renderer->drawColor(color, mode); 269} 270 271static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject canvas, 272 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 273 SkPaint* paint) { 274 renderer->drawRect(left, top, right, bottom, paint); 275} 276 277static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject canvas, 278 OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) { 279 SkRegion::Iterator it(*region); 280 while (!it.done()) { 281 const SkIRect& r = it.rect(); 282 renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 283 it.next(); 284 } 285} 286 287static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject canvas, 288 OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) { 289 renderer->drawPath(path, paint); 290} 291 292static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject canvas, 293 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 294 jfloat* storage = env->GetFloatArrayElements(points, NULL); 295 296 renderer->drawLines(storage + offset, count, paint); 297 298 env->ReleaseFloatArrayElements(points, storage, 0); 299} 300 301// ---------------------------------------------------------------------------- 302// Shaders and color filters 303// ---------------------------------------------------------------------------- 304 305static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject canvas, 306 OpenGLRenderer* renderer) { 307 renderer->resetShader(); 308 renderer->resetColorFilter(); 309 renderer->resetShadow(); 310} 311 312static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject canvas, 313 OpenGLRenderer* renderer, SkiaShader* shader) { 314 renderer->setupShader(shader); 315} 316 317static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject canvas, 318 OpenGLRenderer* renderer, SkiaColorFilter* filter) { 319 renderer->setupColorFilter(filter); 320} 321 322static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject canvas, 323 OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) { 324 renderer->setupShadow(radius, dx, dy, color); 325} 326 327// ---------------------------------------------------------------------------- 328// Text 329// ---------------------------------------------------------------------------- 330 331static void renderText(OpenGLRenderer* renderer, const jchar* text, int count, 332 jfloat x, jfloat y, int flags, SkPaint* paint) { 333 const jchar *workText; 334 jchar* buffer = NULL; 335 int32_t workBytes; 336 if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) { 337 renderer->drawText((const char*) workText, workBytes, count, x, y, paint); 338 free(buffer); 339 } 340} 341 342static void renderTextRun(OpenGLRenderer* renderer, const jchar* text, 343 jint start, jint count, jint contextCount, jfloat x, jfloat y, 344 int flags, SkPaint* paint) { 345 uint8_t rtl = flags & 0x1; 346 if (rtl) { 347 SkAutoSTMalloc<80, jchar> buffer(contextCount); 348 jchar* shaped = buffer.get(); 349 if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) { 350 renderer->drawText((const char*) shaped, count << 1, count, x, y, paint); 351 } else { 352 LOGW("drawTextRun error"); 353 } 354 } else { 355 renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint); 356 } 357} 358 359static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject canvas, 360 OpenGLRenderer* renderer, jcharArray text, int index, int count, 361 jfloat x, jfloat y, int flags, SkPaint* paint) { 362 jchar* textArray = env->GetCharArrayElements(text, NULL); 363 renderText(renderer, textArray + index, count, x, y, flags, paint); 364 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 365} 366 367static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject canvas, 368 OpenGLRenderer* renderer, jstring text, int start, int end, 369 jfloat x, jfloat y, int flags, SkPaint* paint) { 370 const jchar* textArray = env->GetStringChars(text, NULL); 371 renderText(renderer, textArray + start, end - start, x, y, flags, paint); 372 env->ReleaseStringChars(text, textArray); 373} 374 375static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject canvas, 376 OpenGLRenderer* renderer, jcharArray text, int index, int count, 377 int contextIndex, int contextCount, jfloat x, jfloat y, int dirFlags, 378 SkPaint* paint) { 379 jchar* textArray = env->GetCharArrayElements(text, NULL); 380 renderTextRun(renderer, textArray + contextIndex, index - contextIndex, 381 count, contextCount, x, y, dirFlags, paint); 382 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 383 } 384 385static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject canvas, 386 OpenGLRenderer* renderer, jstring text, int start, int end, 387 int contextStart, int contextEnd, jfloat x, jfloat y, int dirFlags, 388 SkPaint* paint) { 389 const jchar* textArray = env->GetStringChars(text, NULL); 390 jint count = end - start; 391 jint contextCount = contextEnd - contextStart; 392 renderTextRun(renderer, textArray + contextStart, start - contextStart, 393 count, contextCount, x, y, dirFlags, paint); 394 env->ReleaseStringChars(text, textArray); 395} 396 397// ---------------------------------------------------------------------------- 398// Display lists 399// ---------------------------------------------------------------------------- 400 401static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer( 402 JNIEnv* env, jobject canvas) { 403 return new DisplayListRenderer; 404} 405 406static DisplayList* android_view_GLES20Canvas_createDisplayList(JNIEnv* env, 407 jobject canvas, DisplayListRenderer* renderer) { 408 return renderer->getDisplayList(); 409} 410 411static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env, 412 jobject canvas, DisplayList* displayList) { 413 delete displayList; 414} 415 416static void android_view_GLES20Canvas_drawDisplayList(JNIEnv* env, 417 jobject canvas, OpenGLRenderer* renderer, DisplayList* displayList) { 418 displayList->replay(*renderer); 419} 420 421#endif // USE_OPENGL_RENDERER 422 423// ---------------------------------------------------------------------------- 424// Common 425// ---------------------------------------------------------------------------- 426 427static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) { 428#ifdef USE_OPENGL_RENDERER 429 return JNI_TRUE; 430#else 431 return JNI_FALSE; 432#endif 433} 434 435// ---------------------------------------------------------------------------- 436// JNI Glue 437// ---------------------------------------------------------------------------- 438 439const char* const kClassPathName = "android/view/GLES20Canvas"; 440 441static JNINativeMethod gMethods[] = { 442 { "nIsAvailable", "()Z", (void*) android_view_GLES20Canvas_isAvailable }, 443 444#ifdef USE_OPENGL_RENDERER 445 { "nCreateRenderer", "()I", (void*) android_view_GLES20Canvas_createRenderer }, 446 { "nDestroyRenderer", "(I)V", (void*) android_view_GLES20Canvas_destroyRenderer }, 447 { "nSetViewport", "(III)V", (void*) android_view_GLES20Canvas_setViewport }, 448 { "nPrepare", "(I)V", (void*) android_view_GLES20Canvas_prepare }, 449 { "nFinish", "(I)V", (void*) android_view_GLES20Canvas_finish }, 450 { "nAcquireContext", "(I)V", (void*) android_view_GLES20Canvas_acquireContext }, 451 { "nReleaseContext", "(I)V", (void*) android_view_GLES20Canvas_releaseContext }, 452 453 { "nSave", "(II)I", (void*) android_view_GLES20Canvas_save }, 454 { "nRestore", "(I)V", (void*) android_view_GLES20Canvas_restore }, 455 { "nRestoreToCount", "(II)V", (void*) android_view_GLES20Canvas_restoreToCount }, 456 { "nGetSaveCount", "(I)I", (void*) android_view_GLES20Canvas_getSaveCount }, 457 458 { "nSaveLayer", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayer }, 459 { "nSaveLayerAlpha", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayerAlpha }, 460 461 { "nQuickReject", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_quickReject }, 462 { "nClipRect", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_clipRectF }, 463 { "nClipRect", "(IIIIII)Z", (void*) android_view_GLES20Canvas_clipRect }, 464 465 { "nTranslate", "(IFF)V", (void*) android_view_GLES20Canvas_translate }, 466 { "nRotate", "(IF)V", (void*) android_view_GLES20Canvas_rotate }, 467 { "nScale", "(IFF)V", (void*) android_view_GLES20Canvas_scale }, 468 469 { "nSetMatrix", "(II)V", (void*) android_view_GLES20Canvas_setMatrix }, 470 { "nGetMatrix", "(II)V", (void*) android_view_GLES20Canvas_getMatrix }, 471 { "nConcatMatrix", "(II)V", (void*) android_view_GLES20Canvas_concatMatrix }, 472 473 { "nDrawBitmap", "(IIFFI)V", (void*) android_view_GLES20Canvas_drawBitmap }, 474 { "nDrawBitmap", "(IIFFFFFFFFI)V", (void*) android_view_GLES20Canvas_drawBitmapRect }, 475 { "nDrawBitmap", "(IIII)V", (void*) android_view_GLES20Canvas_drawBitmapMatrix }, 476 { "nDrawPatch", "(II[BFFFFI)V", (void*) android_view_GLES20Canvas_drawPatch }, 477 { "nDrawColor", "(III)V", (void*) android_view_GLES20Canvas_drawColor }, 478 { "nDrawRect", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawRect }, 479 { "nDrawRects", "(III)V", (void*) android_view_GLES20Canvas_drawRects }, 480 { "nDrawPath", "(III)V", (void*) android_view_GLES20Canvas_drawPath }, 481 { "nDrawLines", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawLines }, 482 483 { "nResetModifiers", "(I)V", (void*) android_view_GLES20Canvas_resetModifiers }, 484 { "nSetupShader", "(II)V", (void*) android_view_GLES20Canvas_setupShader }, 485 { "nSetupColorFilter", "(II)V", (void*) android_view_GLES20Canvas_setupColorFilter }, 486 { "nSetupShadow", "(IFFFI)V", (void*) android_view_GLES20Canvas_setupShadow }, 487 488 { "nDrawText", "(I[CIIFFII)V", (void*) android_view_GLES20Canvas_drawTextArray }, 489 { "nDrawText", "(ILjava/lang/String;IIFFII)V", 490 (void*) android_view_GLES20Canvas_drawText }, 491 492 { "nDrawTextRun", "(I[CIIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRunArray }, 493 { "nDrawTextRun", "(ILjava/lang/String;IIIIFFII)V", 494 (void*) android_view_GLES20Canvas_drawTextRun }, 495 496 { "nGetClipBounds", "(ILandroid/graphics/Rect;)Z", 497 (void*) android_view_GLES20Canvas_getClipBounds }, 498 499 { "nCreateDisplayListRenderer", "()I", (void*) android_view_GLES20Canvas_createDisplayListRenderer }, 500 { "nCreateDisplayList", "(I)I", (void*) android_view_GLES20Canvas_createDisplayList }, 501 { "nDestroyDisplayList", "(I)V", (void*) android_view_GLES20Canvas_destroyDisplayList }, 502 { "nDrawDisplayList", "(II)V", (void*) android_view_GLES20Canvas_drawDisplayList }, 503 504#endif 505}; 506 507#ifdef USE_OPENGL_RENDERER 508 #define FIND_CLASS(var, className) \ 509 var = env->FindClass(className); \ 510 LOG_FATAL_IF(! var, "Unable to find class " className); \ 511 var = jclass(env->NewGlobalRef(var)); 512 513 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ 514 var = env->GetMethodID(clazz, methodName, methodDescriptor); \ 515 LOG_FATAL_IF(! var, "Unable to find method " methodName); 516#else 517 #define FIND_CLASS(var, className) 518 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) 519#endif 520 521int register_android_view_GLES20Canvas(JNIEnv* env) { 522 FIND_CLASS(gRectClassInfo.clazz, "android/graphics/Rect"); 523 GET_METHOD_ID(gRectClassInfo.set, gRectClassInfo.clazz, "set", "(IIII)V"); 524 525 return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); 526} 527 528}; 529