android_view_GLES20Canvas.cpp revision 79df5323e7ed541b854cea5684a89e8be8c2dfc9
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 130static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz, 131 Caches::FlushMode mode) { 132 if (Caches::hasInstance()) { 133 Caches::getInstance().flush(mode); 134 } 135} 136 137// ---------------------------------------------------------------------------- 138// Constructors 139// ---------------------------------------------------------------------------- 140 141static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) { 142 RENDERER_LOGD("Create OpenGLRenderer"); 143 return new OpenGLRenderer; 144} 145 146static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz, 147 OpenGLRenderer* renderer) { 148 RENDERER_LOGD("Destroy OpenGLRenderer"); 149 delete renderer; 150} 151 152// ---------------------------------------------------------------------------- 153// Setup 154// ---------------------------------------------------------------------------- 155 156static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz, 157 OpenGLRenderer* renderer, jint width, jint height) { 158 renderer->setViewport(width, height); 159} 160 161static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz, 162 OpenGLRenderer* renderer, jboolean opaque) { 163 renderer->prepare(opaque); 164} 165 166static void android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz, 167 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 168 jboolean opaque) { 169 renderer->prepareDirty(left, top, right, bottom, opaque); 170} 171 172static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz, 173 OpenGLRenderer* renderer) { 174 renderer->finish(); 175} 176 177static bool android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz, 178 OpenGLRenderer* renderer, Functor *functor) { 179 android::uirenderer::Rect dirty; 180 return renderer->callDrawGLFunction(functor, dirty); 181} 182 183static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) { 184 return Caches::getInstance().maxTextureSize; 185} 186 187static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) { 188 return Caches::getInstance().maxTextureSize; 189} 190 191// ---------------------------------------------------------------------------- 192// State 193// ---------------------------------------------------------------------------- 194 195static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer, 196 jint flags) { 197 return renderer->save(flags); 198} 199 200static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz, 201 OpenGLRenderer* renderer) { 202 return renderer->getSaveCount(); 203} 204 205static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz, 206 OpenGLRenderer* renderer) { 207 renderer->restore(); 208} 209 210static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz, 211 OpenGLRenderer* renderer, jint saveCount) { 212 renderer->restoreToCount(saveCount); 213} 214 215// ---------------------------------------------------------------------------- 216// Layers 217// ---------------------------------------------------------------------------- 218 219static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz, 220 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 221 SkPaint* paint, jint saveFlags) { 222 return renderer->saveLayer(left, top, right, bottom, paint, saveFlags); 223} 224 225static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz, 226 OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) { 227 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 228 return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 229 paint, saveFlags); 230} 231 232static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz, 233 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 234 jint alpha, jint saveFlags) { 235 return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); 236} 237 238static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz, 239 OpenGLRenderer* renderer, jint alpha, jint saveFlags) { 240 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 241 return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 242 alpha, saveFlags); 243} 244 245// ---------------------------------------------------------------------------- 246// Clipping 247// ---------------------------------------------------------------------------- 248 249static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz, 250 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 251 SkCanvas::EdgeType edge) { 252 return renderer->quickReject(left, top, right, bottom); 253} 254 255static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz, 256 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 257 SkRegion::Op op) { 258 return renderer->clipRect(left, top, right, bottom, op); 259} 260 261static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz, 262 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 263 SkRegion::Op op) { 264 return renderer->clipRect(float(left), float(top), float(right), float(bottom), op); 265} 266 267static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz, 268 OpenGLRenderer* renderer, jobject rect) { 269 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 270 271 env->CallVoidMethod(rect, gRectClassInfo.set, 272 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 273 274 return !bounds.isEmpty(); 275} 276 277// ---------------------------------------------------------------------------- 278// Transforms 279// ---------------------------------------------------------------------------- 280 281static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz, 282 OpenGLRenderer* renderer, jfloat dx, jfloat dy) { 283 renderer->translate(dx, dy); 284} 285 286static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz, 287 OpenGLRenderer* renderer, jfloat degrees) { 288 renderer->rotate(degrees); 289} 290 291static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz, 292 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 293 renderer->scale(sx, sy); 294} 295 296static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz, 297 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 298 renderer->skew(sx, sy); 299} 300 301static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz, 302 OpenGLRenderer* renderer, SkMatrix* matrix) { 303 renderer->setMatrix(matrix); 304} 305 306static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz, 307 OpenGLRenderer* renderer, SkMatrix* matrix) { 308 renderer->getMatrix(matrix); 309} 310 311static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz, 312 OpenGLRenderer* renderer, SkMatrix* matrix) { 313 renderer->concatMatrix(matrix); 314} 315 316// ---------------------------------------------------------------------------- 317// Drawing 318// ---------------------------------------------------------------------------- 319 320static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz, 321 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left, 322 float top, SkPaint* paint) { 323 // This object allows the renderer to allocate a global JNI ref to the buffer object. 324 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 325 326 renderer->drawBitmap(bitmap, left, top, paint); 327} 328 329static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz, 330 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 331 float srcLeft, float srcTop, float srcRight, float srcBottom, 332 float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) { 333 // This object allows the renderer to allocate a global JNI ref to the buffer object. 334 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 335 336 renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, 337 dstLeft, dstTop, dstRight, dstBottom, paint); 338} 339 340static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz, 341 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix, 342 SkPaint* paint) { 343 // This object allows the renderer to allocate a global JNI ref to the buffer object. 344 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 345 346 renderer->drawBitmap(bitmap, matrix, paint); 347} 348 349static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz, 350 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 351 jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, 352 jintArray colors, jint colorOffset, SkPaint* paint) { 353 // This object allows the renderer to allocate a global JNI ref to the buffer object. 354 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 355 356 jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL; 357 jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL; 358 359 renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint); 360 361 if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0); 362 if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0); 363} 364 365static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz, 366 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks, 367 float left, float top, float right, float bottom, SkPaint* paint) { 368 // This object allows the renderer to allocate a global JNI ref to the buffer object. 369 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 370 371 jbyte* storage = env->GetByteArrayElements(chunks, NULL); 372 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage); 373 Res_png_9patch::deserialize(patch); 374 375 renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0], 376 &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors, 377 left, top, right, bottom, paint); 378 379 env->ReleaseByteArrayElements(chunks, storage, 0); 380} 381 382static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz, 383 OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) { 384 renderer->drawColor(color, mode); 385} 386 387static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz, 388 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 389 SkPaint* paint) { 390 renderer->drawRect(left, top, right, bottom, paint); 391} 392 393static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz, 394 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 395 jfloat rx, jfloat ry, SkPaint* paint) { 396 renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint); 397} 398 399static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz, 400 OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) { 401 renderer->drawCircle(x, y, radius, paint); 402} 403 404static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz, 405 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 406 SkPaint* paint) { 407 renderer->drawOval(left, top, right, bottom, paint); 408} 409 410static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz, 411 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 412 jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) { 413 renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint); 414} 415 416static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz, 417 OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) { 418 SkRegion::Iterator it(*region); 419 while (!it.done()) { 420 const SkIRect& r = it.rect(); 421 renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 422 it.next(); 423 } 424} 425 426static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz, 427 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 428 jfloat* storage = env->GetFloatArrayElements(points, NULL); 429 renderer->drawPoints(storage + offset, count, paint); 430 env->ReleaseFloatArrayElements(points, storage, 0); 431} 432 433static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz, 434 OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) { 435 renderer->drawPath(path, paint); 436} 437 438static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz, 439 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 440 jfloat* storage = env->GetFloatArrayElements(points, NULL); 441 renderer->drawLines(storage + offset, count, paint); 442 env->ReleaseFloatArrayElements(points, storage, 0); 443} 444 445// ---------------------------------------------------------------------------- 446// Shaders and color filters 447// ---------------------------------------------------------------------------- 448 449static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz, 450 OpenGLRenderer* renderer, jint modifiers) { 451 if (modifiers & MODIFIER_SHADOW) renderer->resetShadow(); 452 if (modifiers & MODIFIER_SHADER) renderer->resetShader(); 453 if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter(); 454} 455 456static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz, 457 OpenGLRenderer* renderer, SkiaShader* shader) { 458 renderer->setupShader(shader); 459} 460 461static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz, 462 OpenGLRenderer* renderer, SkiaColorFilter* filter) { 463 renderer->setupColorFilter(filter); 464} 465 466static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz, 467 OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) { 468 renderer->setupShadow(radius, dx, dy, color); 469} 470 471// ---------------------------------------------------------------------------- 472// Text 473// ---------------------------------------------------------------------------- 474 475static void renderText(OpenGLRenderer* renderer, const jchar* text, int count, 476 jfloat x, jfloat y, int flags, SkPaint* paint) { 477#if RTL_USE_HARFBUZZ 478 sp<TextLayoutCacheValue> value; 479#if USE_TEXT_LAYOUT_CACHE 480 value = TextLayoutCache::getInstance().getValue(paint, text, count, flags); 481 if (value == NULL) { 482 LOGE("Cannot get TextLayoutCache value"); 483 return ; 484 } 485#else 486 value = new TextLayoutCacheValue(); 487 value->computeValues(paint, text, count, flags); 488#endif 489 size_t startIndex = 0; 490 size_t glyphsCount = 0; 491 value->getGlyphsIndexAndCount(0, count, &startIndex, &glyphsCount); 492 const jchar* glyphs = value->getGlyphs(startIndex, glyphsCount); 493 int bytesCount = glyphsCount * sizeof(jchar); 494 renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint); 495#else 496 const jchar *workText; 497 jchar* buffer = NULL; 498 int32_t workBytes; 499 if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) { 500 renderer->drawText((const char*) workText, workBytes, count, x, y, paint); 501 free(buffer); 502 } 503#endif 504} 505 506static void renderTextRun(OpenGLRenderer* renderer, const jchar* text, 507 jint start, jint count, jint contextCount, jfloat x, jfloat y, 508 int flags, SkPaint* paint) { 509#if RTL_USE_HARFBUZZ 510 sp<TextLayoutCacheValue> value; 511#if USE_TEXT_LAYOUT_CACHE 512 value = TextLayoutCache::getInstance().getValue(paint, text, contextCount, flags); 513 if (value == NULL) { 514 LOGE("Cannot get TextLayoutCache value"); 515 return ; 516 } 517#else 518 value = new TextLayoutCacheValue(); 519 value->computeValues(paint, text, contextCount, flags); 520#endif 521 size_t startIndex = 0; 522 size_t glyphsCount = 0; 523 value->getGlyphsIndexAndCount(start, count, &startIndex, &glyphsCount); 524 const jchar* glyphs = value->getGlyphs(startIndex, glyphsCount); 525 int bytesCount = glyphsCount * sizeof(jchar); 526 renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint); 527#else 528 uint8_t rtl = flags & 0x1; 529 if (rtl) { 530 SkAutoSTMalloc<80, jchar> buffer(contextCount); 531 jchar* shaped = buffer.get(); 532 if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) { 533 renderer->drawText((const char*) shaped, count << 1, count, x, y, paint); 534 } else { 535 LOGW("drawTextRun error"); 536 } 537 } else { 538 renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint); 539 } 540#endif 541} 542 543static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz, 544 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 545 jfloat x, jfloat y, jint flags, SkPaint* paint) { 546 jchar* textArray = env->GetCharArrayElements(text, NULL); 547 renderText(renderer, textArray + index, count, x, y, flags, paint); 548 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 549} 550 551static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz, 552 OpenGLRenderer* renderer, jstring text, jint start, jint end, 553 jfloat x, jfloat y, jint flags, SkPaint* paint) { 554 const jchar* textArray = env->GetStringChars(text, NULL); 555 renderText(renderer, textArray + start, end - start, x, y, flags, paint); 556 env->ReleaseStringChars(text, textArray); 557} 558 559static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz, 560 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 561 jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags, 562 SkPaint* paint) { 563 jchar* textArray = env->GetCharArrayElements(text, NULL); 564 renderTextRun(renderer, textArray + contextIndex, index - contextIndex, 565 count, contextCount, x, y, dirFlags, paint); 566 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 567 } 568 569static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz, 570 OpenGLRenderer* renderer, jstring text, jint start, jint end, 571 jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags, 572 SkPaint* paint) { 573 const jchar* textArray = env->GetStringChars(text, NULL); 574 jint count = end - start; 575 jint contextCount = contextEnd - contextStart; 576 renderTextRun(renderer, textArray + contextStart, start - contextStart, 577 count, contextCount, x, y, dirFlags, paint); 578 env->ReleaseStringChars(text, textArray); 579} 580 581// ---------------------------------------------------------------------------- 582// Display lists 583// ---------------------------------------------------------------------------- 584 585static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env, 586 jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) { 587 return renderer->getDisplayList(displayList); 588} 589 590static jint android_view_GLES20Canvas_getDisplayListSize(JNIEnv* env, 591 jobject clazz, DisplayList* displayList) { 592 return displayList->getSize(); 593} 594 595static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, 596 jobject clazz) { 597 return new DisplayListRenderer; 598} 599 600static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env, 601 jobject clazz, DisplayListRenderer* renderer) { 602 renderer->reset(); 603} 604 605static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env, 606 jobject clazz, DisplayList* displayList) { 607 delete displayList; 608} 609 610static bool android_view_GLES20Canvas_drawDisplayList(JNIEnv* env, 611 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList, 612 jint width, jint height, jobject dirty) { 613 android::uirenderer::Rect bounds; 614 bool redraw = renderer->drawDisplayList(displayList, width, height, bounds); 615 if (redraw && dirty != NULL) { 616 env->CallVoidMethod(dirty, gRectClassInfo.set, 617 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 618 } 619 return redraw; 620} 621 622static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env, 623 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) { 624 renderer->outputDisplayList(displayList); 625} 626 627// ---------------------------------------------------------------------------- 628// Layers 629// ---------------------------------------------------------------------------- 630 631static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz, 632 OpenGLRenderer* renderer) { 633 renderer->interrupt(); 634} 635 636static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz, 637 OpenGLRenderer* renderer) { 638 renderer->resume(); 639} 640 641static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env, 642 jobject clazz, Layer* layer) { 643 if (layer) { 644 return new LayerRenderer(layer); 645 } 646 return NULL; 647} 648 649static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz, 650 jboolean isOpaque, jintArray layerInfo) { 651 Layer* layer = LayerRenderer::createTextureLayer(isOpaque); 652 653 if (layer) { 654 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 655 storage[0] = layer->getTexture(); 656 env->ReleaseIntArrayElements(layerInfo, storage, 0); 657 } 658 659 return layer; 660} 661 662static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz, 663 jint width, jint height, jboolean isOpaque, jintArray layerInfo) { 664 Layer* layer = LayerRenderer::createLayer(width, height, isOpaque); 665 666 if (layer) { 667 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 668 storage[0] = layer->getWidth(); 669 storage[1] = layer->getHeight(); 670 env->ReleaseIntArrayElements(layerInfo, storage, 0); 671 } 672 673 return layer; 674} 675 676static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz, 677 Layer* layer, jint width, jint height, jintArray layerInfo) { 678 LayerRenderer::resizeLayer(layer, width, height); 679 680 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 681 storage[0] = layer->getWidth(); 682 storage[1] = layer->getHeight(); 683 env->ReleaseIntArrayElements(layerInfo, storage, 0); 684} 685 686static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz, 687 Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) { 688 float transform[16]; 689 sp<SurfaceTexture> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface)); 690 691 surfaceTexture->updateTexImage(); 692 surfaceTexture->getTransformMatrix(transform); 693 GLenum renderTarget = surfaceTexture->getCurrentTextureTarget(); 694 695 LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform); 696} 697 698static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz, 699 Layer* layer, SkMatrix* matrix) { 700 701 layer->getTransform().load(*matrix); 702} 703 704static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) { 705 LayerRenderer::destroyLayer(layer); 706} 707 708static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env, 709 jobject clazz, Layer* layer) { 710 LayerRenderer::destroyLayerDeferred(layer); 711} 712 713static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz, 714 OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) { 715 renderer->drawLayer(layer, x, y, paint); 716} 717 718static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz, 719 Layer* layer, SkBitmap* bitmap) { 720 return LayerRenderer::copyLayer(layer, bitmap); 721} 722 723#endif // USE_OPENGL_RENDERER 724 725// ---------------------------------------------------------------------------- 726// Common 727// ---------------------------------------------------------------------------- 728 729static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) { 730#ifdef USE_OPENGL_RENDERER 731 return JNI_TRUE; 732#else 733 return JNI_FALSE; 734#endif 735} 736 737// ---------------------------------------------------------------------------- 738// Logging 739// ---------------------------------------------------------------------------- 740 741static void 742android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) { 743#ifdef USE_OPENGL_RENDERER 744 int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor); 745 android::uirenderer::DisplayList::outputLogBuffer(fd); 746#endif // USE_OPENGL_RENDERER 747} 748 749// ---------------------------------------------------------------------------- 750// JNI Glue 751// ---------------------------------------------------------------------------- 752 753const char* const kClassPathName = "android/view/GLES20Canvas"; 754 755static JNINativeMethod gMethods[] = { 756 { "nIsAvailable", "()Z", (void*) android_view_GLES20Canvas_isAvailable }, 757 758#ifdef USE_OPENGL_RENDERER 759 { "nIsBackBufferPreserved", "()Z", (void*) android_view_GLES20Canvas_isBackBufferPreserved }, 760 { "nPreserveBackBuffer", "()Z", (void*) android_view_GLES20Canvas_preserveBackBuffer }, 761 { "nDisableVsync", "()V", (void*) android_view_GLES20Canvas_disableVsync }, 762 { "nFlushCaches", "(I)V", (void*) android_view_GLES20Canvas_flushCaches }, 763 764 { "nCreateRenderer", "()I", (void*) android_view_GLES20Canvas_createRenderer }, 765 { "nDestroyRenderer", "(I)V", (void*) android_view_GLES20Canvas_destroyRenderer }, 766 { "nSetViewport", "(III)V", (void*) android_view_GLES20Canvas_setViewport }, 767 { "nPrepare", "(IZ)V", (void*) android_view_GLES20Canvas_prepare }, 768 { "nPrepareDirty", "(IIIIIZ)V", (void*) android_view_GLES20Canvas_prepareDirty }, 769 { "nFinish", "(I)V", (void*) android_view_GLES20Canvas_finish }, 770 771 { "nCallDrawGLFunction", "(II)Z", 772 (void*) android_view_GLES20Canvas_callDrawGLFunction }, 773 774 { "nSave", "(II)I", (void*) android_view_GLES20Canvas_save }, 775 { "nRestore", "(I)V", (void*) android_view_GLES20Canvas_restore }, 776 { "nRestoreToCount", "(II)V", (void*) android_view_GLES20Canvas_restoreToCount }, 777 { "nGetSaveCount", "(I)I", (void*) android_view_GLES20Canvas_getSaveCount }, 778 779 { "nSaveLayer", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayer }, 780 { "nSaveLayer", "(III)I", (void*) android_view_GLES20Canvas_saveLayerClip }, 781 { "nSaveLayerAlpha", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayerAlpha }, 782 { "nSaveLayerAlpha", "(III)I", (void*) android_view_GLES20Canvas_saveLayerAlphaClip }, 783 784 { "nQuickReject", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_quickReject }, 785 { "nClipRect", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_clipRectF }, 786 { "nClipRect", "(IIIIII)Z", (void*) android_view_GLES20Canvas_clipRect }, 787 788 { "nTranslate", "(IFF)V", (void*) android_view_GLES20Canvas_translate }, 789 { "nRotate", "(IF)V", (void*) android_view_GLES20Canvas_rotate }, 790 { "nScale", "(IFF)V", (void*) android_view_GLES20Canvas_scale }, 791 { "nSkew", "(IFF)V", (void*) android_view_GLES20Canvas_skew }, 792 793 { "nSetMatrix", "(II)V", (void*) android_view_GLES20Canvas_setMatrix }, 794 { "nGetMatrix", "(II)V", (void*) android_view_GLES20Canvas_getMatrix }, 795 { "nConcatMatrix", "(II)V", (void*) android_view_GLES20Canvas_concatMatrix }, 796 797 { "nDrawBitmap", "(II[BFFI)V", (void*) android_view_GLES20Canvas_drawBitmap }, 798 { "nDrawBitmap", "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect }, 799 { "nDrawBitmap", "(II[BII)V", (void*) android_view_GLES20Canvas_drawBitmapMatrix }, 800 801 { "nDrawBitmapMesh", "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh }, 802 803 { "nDrawPatch", "(II[B[BFFFFI)V", (void*) android_view_GLES20Canvas_drawPatch }, 804 805 { "nDrawColor", "(III)V", (void*) android_view_GLES20Canvas_drawColor }, 806 { "nDrawRect", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawRect }, 807 { "nDrawRects", "(III)V", (void*) android_view_GLES20Canvas_drawRects }, 808 { "nDrawRoundRect", "(IFFFFFFI)V", (void*) android_view_GLES20Canvas_drawRoundRect }, 809 { "nDrawCircle", "(IFFFI)V", (void*) android_view_GLES20Canvas_drawCircle }, 810 { "nDrawOval", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawOval }, 811 { "nDrawArc", "(IFFFFFFZI)V", (void*) android_view_GLES20Canvas_drawArc }, 812 { "nDrawPoints", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawPoints }, 813 814 { "nDrawPath", "(III)V", (void*) android_view_GLES20Canvas_drawPath }, 815 { "nDrawLines", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawLines }, 816 817 { "nResetModifiers", "(II)V", (void*) android_view_GLES20Canvas_resetModifiers }, 818 { "nSetupShader", "(II)V", (void*) android_view_GLES20Canvas_setupShader }, 819 { "nSetupColorFilter", "(II)V", (void*) android_view_GLES20Canvas_setupColorFilter }, 820 { "nSetupShadow", "(IFFFI)V", (void*) android_view_GLES20Canvas_setupShadow }, 821 822 { "nDrawText", "(I[CIIFFII)V", (void*) android_view_GLES20Canvas_drawTextArray }, 823 { "nDrawText", "(ILjava/lang/String;IIFFII)V", 824 (void*) android_view_GLES20Canvas_drawText }, 825 826 { "nDrawTextRun", "(I[CIIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRunArray }, 827 { "nDrawTextRun", "(ILjava/lang/String;IIIIFFII)V", 828 (void*) android_view_GLES20Canvas_drawTextRun }, 829 830 { "nGetClipBounds", "(ILandroid/graphics/Rect;)Z", 831 (void*) android_view_GLES20Canvas_getClipBounds }, 832 833 { "nGetDisplayList", "(II)I", (void*) android_view_GLES20Canvas_getDisplayList }, 834 { "nDestroyDisplayList", "(I)V", (void*) android_view_GLES20Canvas_destroyDisplayList }, 835 { "nGetDisplayListSize", "(I)I", (void*) android_view_GLES20Canvas_getDisplayListSize }, 836 { "nCreateDisplayListRenderer", "()I", (void*) android_view_GLES20Canvas_createDisplayListRenderer }, 837 { "nResetDisplayListRenderer", "(I)V", (void*) android_view_GLES20Canvas_resetDisplayListRenderer }, 838 { "nDrawDisplayList", "(IIIILandroid/graphics/Rect;)Z", 839 (void*) android_view_GLES20Canvas_drawDisplayList }, 840 { "nOutputDisplayList", "(II)V", (void*) android_view_GLES20Canvas_outputDisplayList }, 841 { "nInterrupt", "(I)V", (void*) android_view_GLES20Canvas_interrupt }, 842 { "nResume", "(I)V", (void*) android_view_GLES20Canvas_resume }, 843 844 { "nCreateLayerRenderer", "(I)I", (void*) android_view_GLES20Canvas_createLayerRenderer }, 845 { "nCreateLayer", "(IIZ[I)I", (void*) android_view_GLES20Canvas_createLayer }, 846 { "nResizeLayer", "(III[I)V" , (void*) android_view_GLES20Canvas_resizeLayer }, 847 { "nCreateTextureLayer", "(Z[I)I", (void*) android_view_GLES20Canvas_createTextureLayer }, 848 { "nUpdateTextureLayer", "(IIIZLandroid/graphics/SurfaceTexture;)V", 849 (void*) android_view_GLES20Canvas_updateTextureLayer }, 850 { "nSetTextureLayerTransform", "(II)V", (void*) android_view_GLES20Canvas_setTextureLayerTransform }, 851 { "nDestroyLayer", "(I)V", (void*) android_view_GLES20Canvas_destroyLayer }, 852 { "nDestroyLayerDeferred", "(I)V", (void*) android_view_GLES20Canvas_destroyLayerDeferred }, 853 { "nDrawLayer", "(IIFFI)V", (void*) android_view_GLES20Canvas_drawLayer }, 854 { "nCopyLayer", "(II)Z", (void*) android_view_GLES20Canvas_copyLayer }, 855 856 { "nGetMaximumTextureWidth", "()I", (void*) android_view_GLES20Canvas_getMaxTextureWidth }, 857 { "nGetMaximumTextureHeight", "()I", (void*) android_view_GLES20Canvas_getMaxTextureHeight }, 858 859#endif 860}; 861 862static JNINativeMethod gActivityThreadMethods[] = { 863 { "dumpGraphicsInfo", "(Ljava/io/FileDescriptor;)V", 864 (void*) android_app_ActivityThread_dumpGraphics } 865}; 866 867 868#ifdef USE_OPENGL_RENDERER 869 #define FIND_CLASS(var, className) \ 870 var = env->FindClass(className); \ 871 LOG_FATAL_IF(! var, "Unable to find class " className); 872 873 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ 874 var = env->GetMethodID(clazz, methodName, methodDescriptor); \ 875 LOG_FATAL_IF(! var, "Unable to find method " methodName); 876#else 877 #define FIND_CLASS(var, className) 878 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) 879#endif 880 881int register_android_view_GLES20Canvas(JNIEnv* env) { 882 jclass clazz; 883 FIND_CLASS(clazz, "android/graphics/Rect"); 884 GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V"); 885 886 return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); 887} 888 889const char* const kActivityThreadPathName = "android/app/ActivityThread"; 890 891int register_android_app_ActivityThread(JNIEnv* env) { 892 return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName, 893 gActivityThreadMethods, NELEM(gActivityThreadMethods)); 894} 895 896}; 897