android_view_GLES20Canvas.cpp revision 9ace8f5e79e76893fe4ca9e4d10f6c4056330485
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 <EGL/egl.h> 20 21#include "jni.h" 22#include "GraphicsJNI.h" 23#include <nativehelper/JNIHelp.h> 24#include <android_runtime/AndroidRuntime.h> 25#include <android_runtime/android_graphics_SurfaceTexture.h> 26#include <utils/ResourceTypes.h> 27 28#include <gui/SurfaceTexture.h> 29 30#include <SkBitmap.h> 31#include <SkCanvas.h> 32#include <SkMatrix.h> 33#include <SkPaint.h> 34#include <SkRegion.h> 35#include <SkScalerContext.h> 36#include <SkTemplates.h> 37#include <SkXfermode.h> 38 39#include <DisplayListRenderer.h> 40#include <LayerRenderer.h> 41#include <OpenGLRenderer.h> 42#include <SkiaShader.h> 43#include <SkiaColorFilter.h> 44#include <Rect.h> 45 46#include <TextLayout.h> 47 48namespace android { 49 50using namespace uirenderer; 51 52/** 53 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported 54 * devices. This means all the logic must be compiled only when the 55 * preprocessor variable USE_OPENGL_RENDERER is defined. 56 */ 57#ifdef USE_OPENGL_RENDERER 58 59/////////////////////////////////////////////////////////////////////////////// 60// Defines 61/////////////////////////////////////////////////////////////////////////////// 62 63// Debug 64#define DEBUG_RENDERER 0 65 66// Debug 67#if DEBUG_RENDERER 68 #define RENDERER_LOGD(...) LOGD(__VA_ARGS__) 69#else 70 #define RENDERER_LOGD(...) 71#endif 72 73#define MODIFIER_SHADOW 1 74#define MODIFIER_SHADER 2 75#define MODIFIER_COLOR_FILTER 4 76 77// ---------------------------------------------------------------------------- 78 79static struct { 80 jmethodID set; 81} gRectClassInfo; 82 83// ---------------------------------------------------------------------------- 84// Misc 85// ---------------------------------------------------------------------------- 86 87static jboolean android_view_GLES20Canvas_preserveBackBuffer(JNIEnv* env, jobject clazz) { 88 EGLDisplay display = eglGetCurrentDisplay(); 89 EGLSurface surface = eglGetCurrentSurface(EGL_DRAW); 90 91 eglGetError(); 92 eglSurfaceAttrib(display, surface, EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED); 93 94 EGLint error = eglGetError(); 95 if (error != EGL_SUCCESS) { 96 RENDERER_LOGD("Could not enable buffer preserved swap behavior (%x)", error); 97 } 98 99 return error == EGL_SUCCESS; 100} 101 102static jboolean android_view_GLES20Canvas_isBackBufferPreserved(JNIEnv* env, jobject clazz) { 103 EGLDisplay display = eglGetCurrentDisplay(); 104 EGLSurface surface = eglGetCurrentSurface(EGL_DRAW); 105 EGLint value; 106 107 eglGetError(); 108 eglQuerySurface(display, surface, EGL_SWAP_BEHAVIOR, &value); 109 110 EGLint error = eglGetError(); 111 if (error != EGL_SUCCESS) { 112 RENDERER_LOGD("Could not query buffer preserved swap behavior (%x)", error); 113 } 114 115 return error == EGL_SUCCESS && value == EGL_BUFFER_PRESERVED; 116} 117 118static void android_view_GLES20Canvas_disableVsync(JNIEnv* env, jobject clazz) { 119 EGLDisplay display = eglGetCurrentDisplay(); 120 121 eglGetError(); 122 eglSwapInterval(display, 0); 123 124 EGLint error = eglGetError(); 125 if (error != EGL_SUCCESS) { 126 RENDERER_LOGD("Could not disable v-sync (%x)", error); 127 } 128} 129 130// ---------------------------------------------------------------------------- 131// Constructors 132// ---------------------------------------------------------------------------- 133 134static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) { 135 RENDERER_LOGD("Create OpenGLRenderer"); 136 return new OpenGLRenderer; 137} 138 139static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz, 140 OpenGLRenderer* renderer) { 141 RENDERER_LOGD("Destroy OpenGLRenderer"); 142 delete renderer; 143} 144 145// ---------------------------------------------------------------------------- 146// Setup 147// ---------------------------------------------------------------------------- 148 149static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz, 150 OpenGLRenderer* renderer, jint width, jint height) { 151 renderer->setViewport(width, height); 152} 153 154static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz, 155 OpenGLRenderer* renderer, jboolean opaque) { 156 renderer->prepare(opaque); 157} 158 159static void android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz, 160 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 161 jboolean opaque) { 162 renderer->prepareDirty(left, top, right, bottom, opaque); 163} 164 165static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz, 166 OpenGLRenderer* renderer) { 167 renderer->finish(); 168} 169 170static bool android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz, 171 OpenGLRenderer* renderer, Functor *functor) { 172 android::uirenderer::Rect dirty; 173 return renderer->callDrawGLFunction(functor, dirty); 174} 175 176static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) { 177 return Caches::getInstance().maxTextureSize; 178} 179 180static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) { 181 return Caches::getInstance().maxTextureSize; 182} 183 184// ---------------------------------------------------------------------------- 185// State 186// ---------------------------------------------------------------------------- 187 188static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer, 189 jint flags) { 190 return renderer->save(flags); 191} 192 193static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz, 194 OpenGLRenderer* renderer) { 195 return renderer->getSaveCount(); 196} 197 198static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz, 199 OpenGLRenderer* renderer) { 200 renderer->restore(); 201} 202 203static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz, 204 OpenGLRenderer* renderer, jint saveCount) { 205 renderer->restoreToCount(saveCount); 206} 207 208// ---------------------------------------------------------------------------- 209// Layers 210// ---------------------------------------------------------------------------- 211 212static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz, 213 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 214 SkPaint* paint, jint saveFlags) { 215 return renderer->saveLayer(left, top, right, bottom, paint, saveFlags); 216} 217 218static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz, 219 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 220 jint alpha, jint saveFlags) { 221 return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); 222} 223 224// ---------------------------------------------------------------------------- 225// Clipping 226// ---------------------------------------------------------------------------- 227 228static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz, 229 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 230 SkCanvas::EdgeType edge) { 231 return renderer->quickReject(left, top, right, bottom); 232} 233 234static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz, 235 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 236 SkRegion::Op op) { 237 return renderer->clipRect(left, top, right, bottom, op); 238} 239 240static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz, 241 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 242 SkRegion::Op op) { 243 return renderer->clipRect(float(left), float(top), float(right), float(bottom), op); 244} 245 246static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz, 247 OpenGLRenderer* renderer, jobject rect) { 248 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 249 250 env->CallVoidMethod(rect, gRectClassInfo.set, 251 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 252 253 return !bounds.isEmpty(); 254} 255 256// ---------------------------------------------------------------------------- 257// Transforms 258// ---------------------------------------------------------------------------- 259 260static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz, 261 OpenGLRenderer* renderer, jfloat dx, jfloat dy) { 262 renderer->translate(dx, dy); 263} 264 265static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz, 266 OpenGLRenderer* renderer, jfloat degrees) { 267 renderer->rotate(degrees); 268} 269 270static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz, 271 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 272 renderer->scale(sx, sy); 273} 274 275static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz, 276 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 277 renderer->skew(sx, sy); 278} 279 280static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz, 281 OpenGLRenderer* renderer, SkMatrix* matrix) { 282 renderer->setMatrix(matrix); 283} 284 285static const float* android_view_GLES20Canvas_getNativeMatrix(JNIEnv* env, 286 jobject clazz, OpenGLRenderer* renderer) { 287 return renderer->getMatrix(); 288} 289 290static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz, 291 OpenGLRenderer* renderer, SkMatrix* matrix) { 292 renderer->getMatrix(matrix); 293} 294 295static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz, 296 OpenGLRenderer* renderer, SkMatrix* matrix) { 297 renderer->concatMatrix(matrix); 298} 299 300// ---------------------------------------------------------------------------- 301// Drawing 302// ---------------------------------------------------------------------------- 303 304static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz, 305 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left, 306 float top, SkPaint* paint) { 307 // This object allows the renderer to allocate a global JNI ref to the buffer object. 308 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 309 310 renderer->drawBitmap(bitmap, left, top, paint); 311} 312 313static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz, 314 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 315 float srcLeft, float srcTop, float srcRight, float srcBottom, 316 float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) { 317 // This object allows the renderer to allocate a global JNI ref to the buffer object. 318 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 319 320 renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, 321 dstLeft, dstTop, dstRight, dstBottom, paint); 322} 323 324static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz, 325 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix, 326 SkPaint* paint) { 327 // This object allows the renderer to allocate a global JNI ref to the buffer object. 328 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 329 330 renderer->drawBitmap(bitmap, matrix, paint); 331} 332 333static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz, 334 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 335 jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, 336 jintArray colors, jint colorOffset, SkPaint* paint) { 337 // This object allows the renderer to allocate a global JNI ref to the buffer object. 338 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 339 340 jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL; 341 jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL; 342 343 renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint); 344 345 if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0); 346 if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0); 347} 348 349static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz, 350 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks, 351 float left, float top, float right, float bottom, SkPaint* paint) { 352 // This object allows the renderer to allocate a global JNI ref to the buffer object. 353 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 354 355 jbyte* storage = env->GetByteArrayElements(chunks, NULL); 356 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage); 357 Res_png_9patch::deserialize(patch); 358 359 renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0], 360 &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors, 361 left, top, right, bottom, paint); 362 363 env->ReleaseByteArrayElements(chunks, storage, 0); 364} 365 366static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz, 367 OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) { 368 renderer->drawColor(color, mode); 369} 370 371static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz, 372 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 373 SkPaint* paint) { 374 renderer->drawRect(left, top, right, bottom, paint); 375} 376 377static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz, 378 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 379 jfloat rx, jfloat ry, SkPaint* paint) { 380 renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint); 381} 382 383static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz, 384 OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) { 385 renderer->drawCircle(x, y, radius, paint); 386} 387 388static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz, 389 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 390 SkPaint* paint) { 391 renderer->drawOval(left, top, right, bottom, paint); 392} 393 394static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz, 395 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 396 jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) { 397 renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint); 398} 399 400static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz, 401 OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) { 402 SkRegion::Iterator it(*region); 403 while (!it.done()) { 404 const SkIRect& r = it.rect(); 405 renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 406 it.next(); 407 } 408} 409 410static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz, 411 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 412 jfloat* storage = env->GetFloatArrayElements(points, NULL); 413 renderer->drawPoints(storage + offset, count, paint); 414 env->ReleaseFloatArrayElements(points, storage, 0); 415} 416 417static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz, 418 OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) { 419 renderer->drawPath(path, paint); 420} 421 422static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz, 423 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 424 jfloat* storage = env->GetFloatArrayElements(points, NULL); 425 renderer->drawLines(storage + offset, count, paint); 426 env->ReleaseFloatArrayElements(points, storage, 0); 427} 428 429// ---------------------------------------------------------------------------- 430// Shaders and color filters 431// ---------------------------------------------------------------------------- 432 433static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz, 434 OpenGLRenderer* renderer, jint modifiers) { 435 if (modifiers & MODIFIER_SHADOW) renderer->resetShadow(); 436 if (modifiers & MODIFIER_SHADER) renderer->resetShader(); 437 if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter(); 438} 439 440static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz, 441 OpenGLRenderer* renderer, SkiaShader* shader) { 442 renderer->setupShader(shader); 443} 444 445static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz, 446 OpenGLRenderer* renderer, SkiaColorFilter* filter) { 447 renderer->setupColorFilter(filter); 448} 449 450static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz, 451 OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) { 452 renderer->setupShadow(radius, dx, dy, color); 453} 454 455// ---------------------------------------------------------------------------- 456// Text 457// ---------------------------------------------------------------------------- 458 459static void renderText(OpenGLRenderer* renderer, const jchar* text, int count, 460 jfloat x, jfloat y, int flags, SkPaint* paint) { 461#if RTL_USE_HARFBUZZ 462 sp<TextLayoutCacheValue> value; 463#if USE_TEXT_LAYOUT_CACHE 464 value = gTextLayoutCache.getValue(paint, text, 0, count, count, flags); 465 if (value == NULL) { 466 LOGE("Cannot get TextLayoutCache value"); 467 return ; 468 } 469#else 470 value = new TextLayoutCacheValue(); 471 value->computeValues(paint, text, 0, count, count, flags); 472#endif 473#if DEBUG_GLYPHS 474 logGlyphs(value); 475#endif 476 const jchar* glyphArray = value->getGlyphs(); 477 int glyphCount = value->getGlyphsCount(); 478 int bytesCount = glyphCount * sizeof(jchar); 479 renderer->drawText((const char*) glyphArray, bytesCount, glyphCount, x, y, paint); 480#else 481 const jchar *workText; 482 jchar* buffer = NULL; 483 int32_t workBytes; 484 if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) { 485 renderer->drawText((const char*) workText, workBytes, count, x, y, paint); 486 free(buffer); 487 } 488#endif 489} 490 491static void renderTextRun(OpenGLRenderer* renderer, const jchar* text, 492 jint start, jint count, jint contextCount, jfloat x, jfloat y, 493 int flags, SkPaint* paint) { 494#if RTL_USE_HARFBUZZ 495 sp<TextLayoutCacheValue> value; 496#if USE_TEXT_LAYOUT_CACHE 497 value = gTextLayoutCache.getValue(paint, text, start, count, contextCount, flags); 498 if (value == NULL) { 499 LOGE("Cannot get TextLayoutCache value"); 500 return ; 501 } 502#else 503 value = new TextLayoutCacheValue(); 504 value->computeValues(paint, text, start, count, contextCount, flags); 505#endif 506#if DEBUG_GLYPHS 507 logGlyphs(value); 508#endif 509 const jchar* glyphArray = value->getGlyphs(); 510 int glyphCount = value->getGlyphsCount(); 511 int bytesCount = glyphCount * sizeof(jchar); 512 renderer->drawText((const char*) glyphArray, bytesCount, glyphCount, x, y, paint); 513#else 514 uint8_t rtl = flags & 0x1; 515 if (rtl) { 516 SkAutoSTMalloc<80, jchar> buffer(contextCount); 517 jchar* shaped = buffer.get(); 518 if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) { 519 renderer->drawText((const char*) shaped, count << 1, count, x, y, paint); 520 } else { 521 LOGW("drawTextRun error"); 522 } 523 } else { 524 renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint); 525 } 526#endif 527} 528 529static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz, 530 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 531 jfloat x, jfloat y, jint flags, SkPaint* paint) { 532 jchar* textArray = env->GetCharArrayElements(text, NULL); 533 renderText(renderer, textArray + index, count, x, y, flags, paint); 534 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 535} 536 537static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz, 538 OpenGLRenderer* renderer, jstring text, jint start, jint end, 539 jfloat x, jfloat y, jint flags, SkPaint* paint) { 540 const jchar* textArray = env->GetStringChars(text, NULL); 541 renderText(renderer, textArray + start, end - start, x, y, flags, paint); 542 env->ReleaseStringChars(text, textArray); 543} 544 545static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz, 546 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 547 jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags, 548 SkPaint* paint) { 549 jchar* textArray = env->GetCharArrayElements(text, NULL); 550 renderTextRun(renderer, textArray + contextIndex, index - contextIndex, 551 count, contextCount, x, y, dirFlags, paint); 552 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 553 } 554 555static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz, 556 OpenGLRenderer* renderer, jstring text, jint start, jint end, 557 jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags, 558 SkPaint* paint) { 559 const jchar* textArray = env->GetStringChars(text, NULL); 560 jint count = end - start; 561 jint contextCount = contextEnd - contextStart; 562 renderTextRun(renderer, textArray + contextStart, start - contextStart, 563 count, contextCount, x, y, dirFlags, paint); 564 env->ReleaseStringChars(text, textArray); 565} 566 567// ---------------------------------------------------------------------------- 568// Display lists 569// ---------------------------------------------------------------------------- 570 571static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env, 572 jobject clazz, DisplayListRenderer* renderer) { 573 return renderer->getDisplayList(); 574} 575 576static OpenGLRenderer* android_view_GLES20Canvas_getDisplayListRenderer(JNIEnv* env, 577 jobject clazz, DisplayListRenderer* renderer) { 578 if (renderer == NULL) { 579 renderer = new DisplayListRenderer; 580 } else { 581 renderer->reset(); 582 } 583 return renderer; 584} 585 586static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env, 587 jobject clazz, DisplayList* displayList) { 588 delete displayList; 589} 590 591static bool android_view_GLES20Canvas_drawDisplayList(JNIEnv* env, 592 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList, 593 jint width, jint height, jobject dirty) { 594 android::uirenderer::Rect bounds; 595 bool redraw = renderer->drawDisplayList(displayList, width, height, bounds); 596 if (redraw && dirty != NULL) { 597 env->CallVoidMethod(dirty, gRectClassInfo.set, 598 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 599 } 600 return redraw; 601} 602 603static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env, 604 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) { 605 renderer->outputDisplayList(displayList); 606} 607 608// ---------------------------------------------------------------------------- 609// Layers 610// ---------------------------------------------------------------------------- 611 612static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz, 613 OpenGLRenderer* renderer) { 614 renderer->interrupt(); 615} 616 617static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz, 618 OpenGLRenderer* renderer) { 619 renderer->resume(); 620} 621 622static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env, 623 jobject clazz, Layer* layer) { 624 if (layer) { 625 return new LayerRenderer(layer); 626 } 627 return NULL; 628} 629 630static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz, 631 jboolean isOpaque, jintArray layerInfo) { 632 Layer* layer = LayerRenderer::createTextureLayer(isOpaque); 633 634 if (layer) { 635 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 636 storage[0] = layer->getTexture(); 637 env->ReleaseIntArrayElements(layerInfo, storage, 0); 638 } 639 640 return layer; 641} 642 643static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz, 644 jint width, jint height, jboolean isOpaque, jintArray layerInfo) { 645 Layer* layer = LayerRenderer::createLayer(width, height, isOpaque); 646 647 if (layer) { 648 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 649 storage[0] = layer->getWidth(); 650 storage[1] = layer->getHeight(); 651 env->ReleaseIntArrayElements(layerInfo, storage, 0); 652 } 653 654 return layer; 655} 656 657static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz, 658 Layer* layer, jint width, jint height, jintArray layerInfo) { 659 LayerRenderer::resizeLayer(layer, width, height); 660 661 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 662 storage[0] = layer->getWidth(); 663 storage[1] = layer->getHeight(); 664 env->ReleaseIntArrayElements(layerInfo, storage, 0); 665} 666 667static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz, 668 Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) { 669 float transform[16]; 670 sp<SurfaceTexture> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface)); 671 672 surfaceTexture->updateTexImage(); 673 surfaceTexture->getTransformMatrix(transform); 674 GLenum renderTarget = surfaceTexture->getCurrentTextureTarget(); 675 676 LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform); 677} 678 679static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) { 680 LayerRenderer::destroyLayer(layer); 681} 682 683static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env, 684 jobject clazz, Layer* layer) { 685 LayerRenderer::destroyLayerDeferred(layer); 686} 687 688static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz, 689 OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) { 690 renderer->drawLayer(layer, x, y, paint); 691} 692 693static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz, 694 Layer* layer, SkBitmap* bitmap) { 695 return LayerRenderer::copyLayer(layer, bitmap); 696} 697 698#endif // USE_OPENGL_RENDERER 699 700// ---------------------------------------------------------------------------- 701// Common 702// ---------------------------------------------------------------------------- 703 704static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) { 705#ifdef USE_OPENGL_RENDERER 706 return JNI_TRUE; 707#else 708 return JNI_FALSE; 709#endif 710} 711 712// ---------------------------------------------------------------------------- 713// Logging 714// ---------------------------------------------------------------------------- 715 716static void 717android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) 718{ 719#ifdef USE_OPENGL_RENDERER 720 int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor); 721 android::uirenderer::DisplayList::outputLogBuffer(fd); 722#endif // USE_OPENGL_RENDERER 723} 724 725// ---------------------------------------------------------------------------- 726// JNI Glue 727// ---------------------------------------------------------------------------- 728 729const char* const kClassPathName = "android/view/GLES20Canvas"; 730 731static JNINativeMethod gMethods[] = { 732 { "nIsAvailable", "()Z", (void*) android_view_GLES20Canvas_isAvailable }, 733 734#ifdef USE_OPENGL_RENDERER 735 { "nIsBackBufferPreserved", "()Z", (void*) android_view_GLES20Canvas_isBackBufferPreserved }, 736 { "nPreserveBackBuffer", "()Z", (void*) android_view_GLES20Canvas_preserveBackBuffer }, 737 { "nDisableVsync", "()V", (void*) android_view_GLES20Canvas_disableVsync }, 738 739 { "nCreateRenderer", "()I", (void*) android_view_GLES20Canvas_createRenderer }, 740 { "nDestroyRenderer", "(I)V", (void*) android_view_GLES20Canvas_destroyRenderer }, 741 { "nSetViewport", "(III)V", (void*) android_view_GLES20Canvas_setViewport }, 742 { "nPrepare", "(IZ)V", (void*) android_view_GLES20Canvas_prepare }, 743 { "nPrepareDirty", "(IIIIIZ)V", (void*) android_view_GLES20Canvas_prepareDirty }, 744 { "nFinish", "(I)V", (void*) android_view_GLES20Canvas_finish }, 745 746 { "nCallDrawGLFunction", "(II)Z", 747 (void*) android_view_GLES20Canvas_callDrawGLFunction }, 748 749 { "nSave", "(II)I", (void*) android_view_GLES20Canvas_save }, 750 { "nRestore", "(I)V", (void*) android_view_GLES20Canvas_restore }, 751 { "nRestoreToCount", "(II)V", (void*) android_view_GLES20Canvas_restoreToCount }, 752 { "nGetSaveCount", "(I)I", (void*) android_view_GLES20Canvas_getSaveCount }, 753 754 { "nSaveLayer", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayer }, 755 { "nSaveLayerAlpha", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayerAlpha }, 756 757 { "nQuickReject", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_quickReject }, 758 { "nClipRect", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_clipRectF }, 759 { "nClipRect", "(IIIIII)Z", (void*) android_view_GLES20Canvas_clipRect }, 760 761 { "nTranslate", "(IFF)V", (void*) android_view_GLES20Canvas_translate }, 762 { "nRotate", "(IF)V", (void*) android_view_GLES20Canvas_rotate }, 763 { "nScale", "(IFF)V", (void*) android_view_GLES20Canvas_scale }, 764 { "nSkew", "(IFF)V", (void*) android_view_GLES20Canvas_skew }, 765 766 { "nSetMatrix", "(II)V", (void*) android_view_GLES20Canvas_setMatrix }, 767 { "nGetMatrix", "(I)I", (void*) android_view_GLES20Canvas_getNativeMatrix }, 768 { "nGetMatrix", "(II)V", (void*) android_view_GLES20Canvas_getMatrix }, 769 { "nConcatMatrix", "(II)V", (void*) android_view_GLES20Canvas_concatMatrix }, 770 771 { "nDrawBitmap", "(II[BFFI)V", (void*) android_view_GLES20Canvas_drawBitmap }, 772 { "nDrawBitmap", "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect }, 773 { "nDrawBitmap", "(II[BII)V", (void*) android_view_GLES20Canvas_drawBitmapMatrix }, 774 775 { "nDrawBitmapMesh", "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh }, 776 777 { "nDrawPatch", "(II[B[BFFFFI)V", (void*) android_view_GLES20Canvas_drawPatch }, 778 779 { "nDrawColor", "(III)V", (void*) android_view_GLES20Canvas_drawColor }, 780 { "nDrawRect", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawRect }, 781 { "nDrawRects", "(III)V", (void*) android_view_GLES20Canvas_drawRects }, 782 { "nDrawRoundRect", "(IFFFFFFI)V", (void*) android_view_GLES20Canvas_drawRoundRect }, 783 { "nDrawCircle", "(IFFFI)V", (void*) android_view_GLES20Canvas_drawCircle }, 784 { "nDrawOval", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawOval }, 785 { "nDrawArc", "(IFFFFFFZI)V", (void*) android_view_GLES20Canvas_drawArc }, 786 { "nDrawPoints", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawPoints }, 787 788 { "nDrawPath", "(III)V", (void*) android_view_GLES20Canvas_drawPath }, 789 { "nDrawLines", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawLines }, 790 791 { "nResetModifiers", "(II)V", (void*) android_view_GLES20Canvas_resetModifiers }, 792 { "nSetupShader", "(II)V", (void*) android_view_GLES20Canvas_setupShader }, 793 { "nSetupColorFilter", "(II)V", (void*) android_view_GLES20Canvas_setupColorFilter }, 794 { "nSetupShadow", "(IFFFI)V", (void*) android_view_GLES20Canvas_setupShadow }, 795 796 { "nDrawText", "(I[CIIFFII)V", (void*) android_view_GLES20Canvas_drawTextArray }, 797 { "nDrawText", "(ILjava/lang/String;IIFFII)V", 798 (void*) android_view_GLES20Canvas_drawText }, 799 800 { "nDrawTextRun", "(I[CIIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRunArray }, 801 { "nDrawTextRun", "(ILjava/lang/String;IIIIFFII)V", 802 (void*) android_view_GLES20Canvas_drawTextRun }, 803 804 { "nGetClipBounds", "(ILandroid/graphics/Rect;)Z", 805 (void*) android_view_GLES20Canvas_getClipBounds }, 806 807 { "nGetDisplayList", "(I)I", (void*) android_view_GLES20Canvas_getDisplayList }, 808 { "nDestroyDisplayList", "(I)V", (void*) android_view_GLES20Canvas_destroyDisplayList }, 809 { "nGetDisplayListRenderer", "(I)I", (void*) android_view_GLES20Canvas_getDisplayListRenderer }, 810 { "nDrawDisplayList", "(IIIILandroid/graphics/Rect;)Z", 811 (void*) android_view_GLES20Canvas_drawDisplayList }, 812 { "nOutputDisplayList", "(II)V", (void*) android_view_GLES20Canvas_outputDisplayList }, 813 { "nInterrupt", "(I)V", (void*) android_view_GLES20Canvas_interrupt }, 814 { "nResume", "(I)V", (void*) android_view_GLES20Canvas_resume }, 815 816 { "nCreateLayerRenderer", "(I)I", (void*) android_view_GLES20Canvas_createLayerRenderer }, 817 { "nCreateLayer", "(IIZ[I)I", (void*) android_view_GLES20Canvas_createLayer }, 818 { "nResizeLayer", "(III[I)V" , (void*) android_view_GLES20Canvas_resizeLayer }, 819 { "nCreateTextureLayer", "(Z[I)I", (void*) android_view_GLES20Canvas_createTextureLayer }, 820 { "nUpdateTextureLayer", "(IIIZLandroid/graphics/SurfaceTexture;)V", 821 (void*) android_view_GLES20Canvas_updateTextureLayer }, 822 { "nDestroyLayer", "(I)V", (void*) android_view_GLES20Canvas_destroyLayer }, 823 { "nDestroyLayerDeferred", "(I)V", (void*) android_view_GLES20Canvas_destroyLayerDeferred }, 824 { "nDrawLayer", "(IIFFI)V", (void*) android_view_GLES20Canvas_drawLayer }, 825 { "nCopyLayer", "(II)Z", (void*) android_view_GLES20Canvas_copyLayer }, 826 827 { "nGetMaximumTextureWidth", "()I", (void*) android_view_GLES20Canvas_getMaxTextureWidth }, 828 { "nGetMaximumTextureHeight", "()I", (void*) android_view_GLES20Canvas_getMaxTextureHeight }, 829 830#endif 831}; 832 833static JNINativeMethod gActivityThreadMethods[] = { 834 { "dumpGraphicsInfo", "(Ljava/io/FileDescriptor;)V", 835 (void*) android_app_ActivityThread_dumpGraphics } 836}; 837 838 839#ifdef USE_OPENGL_RENDERER 840 #define FIND_CLASS(var, className) \ 841 var = env->FindClass(className); \ 842 LOG_FATAL_IF(! var, "Unable to find class " className); 843 844 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ 845 var = env->GetMethodID(clazz, methodName, methodDescriptor); \ 846 LOG_FATAL_IF(! var, "Unable to find method " methodName); 847#else 848 #define FIND_CLASS(var, className) 849 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) 850#endif 851 852int register_android_view_GLES20Canvas(JNIEnv* env) { 853 jclass clazz; 854 FIND_CLASS(clazz, "android/graphics/Rect"); 855 GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V"); 856 857 return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); 858} 859 860const char* const kActivityThreadPathName = "android/app/ActivityThread"; 861 862int register_android_app_ActivityThread(JNIEnv* env) 863{ 864 return AndroidRuntime::registerNativeMethods( 865 env, kActivityThreadPathName, 866 gActivityThreadMethods, NELEM(gActivityThreadMethods)); 867} 868 869}; 870