android_view_GLES20Canvas.cpp revision 4406345cd62d3687ce590c357854472f7f906e6c
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 <cutils/properties.h> 27#include <utils/ResourceTypes.h> 28 29#include <gui/SurfaceTexture.h> 30 31#include <SkBitmap.h> 32#include <SkCanvas.h> 33#include <SkMatrix.h> 34#include <SkPaint.h> 35#include <SkRegion.h> 36#include <SkScalerContext.h> 37#include <SkTemplates.h> 38#include <SkXfermode.h> 39 40#include <DisplayListRenderer.h> 41#include <LayerRenderer.h> 42#include <OpenGLRenderer.h> 43#include <SkiaShader.h> 44#include <SkiaColorFilter.h> 45#include <Rect.h> 46 47#include <TextLayout.h> 48 49namespace android { 50 51using namespace uirenderer; 52 53/** 54 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported 55 * devices. This means all the logic must be compiled only when the 56 * preprocessor variable USE_OPENGL_RENDERER is defined. 57 */ 58#ifdef USE_OPENGL_RENDERER 59 60/////////////////////////////////////////////////////////////////////////////// 61// Defines 62/////////////////////////////////////////////////////////////////////////////// 63 64// Debug 65#define DEBUG_RENDERER 0 66 67// Debug 68#if DEBUG_RENDERER 69 #define RENDERER_LOGD(...) LOGD(__VA_ARGS__) 70#else 71 #define RENDERER_LOGD(...) 72#endif 73 74#define MODIFIER_SHADOW 1 75#define MODIFIER_SHADER 2 76#define MODIFIER_COLOR_FILTER 4 77 78// ---------------------------------------------------------------------------- 79 80static struct { 81 jmethodID set; 82} gRectClassInfo; 83 84// ---------------------------------------------------------------------------- 85// Misc 86// ---------------------------------------------------------------------------- 87 88static jboolean android_view_GLES20Canvas_preserveBackBuffer(JNIEnv* env, jobject clazz) { 89 EGLDisplay display = eglGetCurrentDisplay(); 90 EGLSurface surface = eglGetCurrentSurface(EGL_DRAW); 91 92 eglGetError(); 93 eglSurfaceAttrib(display, surface, EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED); 94 95 EGLint error = eglGetError(); 96 if (error != EGL_SUCCESS) { 97 RENDERER_LOGD("Could not enable buffer preserved swap behavior (%x)", error); 98 } 99 100 return error == EGL_SUCCESS; 101} 102 103static jboolean android_view_GLES20Canvas_isBackBufferPreserved(JNIEnv* env, jobject clazz) { 104 EGLDisplay display = eglGetCurrentDisplay(); 105 EGLSurface surface = eglGetCurrentSurface(EGL_DRAW); 106 EGLint value; 107 108 eglGetError(); 109 eglQuerySurface(display, surface, EGL_SWAP_BEHAVIOR, &value); 110 111 EGLint error = eglGetError(); 112 if (error != EGL_SUCCESS) { 113 RENDERER_LOGD("Could not query buffer preserved swap behavior (%x)", error); 114 } 115 116 return error == EGL_SUCCESS && value == EGL_BUFFER_PRESERVED; 117} 118 119static void android_view_GLES20Canvas_disableVsync(JNIEnv* env, jobject clazz) { 120 EGLDisplay display = eglGetCurrentDisplay(); 121 122 eglGetError(); 123 eglSwapInterval(display, 0); 124 125 EGLint error = eglGetError(); 126 if (error != EGL_SUCCESS) { 127 RENDERER_LOGD("Could not disable v-sync (%x)", error); 128 } 129} 130 131static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz, 132 Caches::FlushMode mode) { 133 if (Caches::hasInstance()) { 134 Caches::getInstance().flush(mode); 135 } 136} 137 138static void android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) { 139 if (Caches::hasInstance()) { 140 Caches::getInstance().init(); 141 } 142} 143 144static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) { 145 if (Caches::hasInstance()) { 146 Caches::getInstance().terminate(); 147 } 148} 149 150// ---------------------------------------------------------------------------- 151// Constructors 152// ---------------------------------------------------------------------------- 153 154static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) { 155 RENDERER_LOGD("Create OpenGLRenderer"); 156 return new OpenGLRenderer; 157} 158 159static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz, 160 OpenGLRenderer* renderer) { 161 RENDERER_LOGD("Destroy OpenGLRenderer"); 162 delete renderer; 163} 164 165// ---------------------------------------------------------------------------- 166// Setup 167// ---------------------------------------------------------------------------- 168 169static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz, 170 OpenGLRenderer* renderer, jint width, jint height) { 171 renderer->setViewport(width, height); 172} 173 174static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz, 175 OpenGLRenderer* renderer, jboolean opaque) { 176 renderer->prepare(opaque); 177} 178 179static void android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz, 180 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 181 jboolean opaque) { 182 renderer->prepareDirty(left, top, right, bottom, opaque); 183} 184 185static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz, 186 OpenGLRenderer* renderer) { 187 renderer->finish(); 188} 189 190static bool android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz, 191 OpenGLRenderer* renderer, Functor *functor) { 192 android::uirenderer::Rect dirty; 193 return renderer->callDrawGLFunction(functor, dirty); 194} 195 196static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) { 197 return Caches::getInstance().maxTextureSize; 198} 199 200static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) { 201 return Caches::getInstance().maxTextureSize; 202} 203 204// ---------------------------------------------------------------------------- 205// State 206// ---------------------------------------------------------------------------- 207 208static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer, 209 jint flags) { 210 return renderer->save(flags); 211} 212 213static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz, 214 OpenGLRenderer* renderer) { 215 return renderer->getSaveCount(); 216} 217 218static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz, 219 OpenGLRenderer* renderer) { 220 renderer->restore(); 221} 222 223static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz, 224 OpenGLRenderer* renderer, jint saveCount) { 225 renderer->restoreToCount(saveCount); 226} 227 228// ---------------------------------------------------------------------------- 229// Layers 230// ---------------------------------------------------------------------------- 231 232static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz, 233 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 234 SkPaint* paint, jint saveFlags) { 235 return renderer->saveLayer(left, top, right, bottom, paint, saveFlags); 236} 237 238static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz, 239 OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) { 240 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 241 return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, 242 paint, saveFlags); 243} 244 245static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz, 246 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 247 jint alpha, jint saveFlags) { 248 return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); 249} 250 251static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz, 252 OpenGLRenderer* renderer, jint alpha, jint saveFlags) { 253 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 254 return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom, 255 alpha, saveFlags); 256} 257 258// ---------------------------------------------------------------------------- 259// Clipping 260// ---------------------------------------------------------------------------- 261 262static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz, 263 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 264 SkCanvas::EdgeType edge) { 265 return renderer->quickReject(left, top, right, bottom); 266} 267 268static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz, 269 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 270 SkRegion::Op op) { 271 return renderer->clipRect(left, top, right, bottom, op); 272} 273 274static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz, 275 OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, 276 SkRegion::Op op) { 277 return renderer->clipRect(float(left), float(top), float(right), float(bottom), op); 278} 279 280static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz, 281 OpenGLRenderer* renderer, jobject rect) { 282 const android::uirenderer::Rect& bounds(renderer->getClipBounds()); 283 284 env->CallVoidMethod(rect, gRectClassInfo.set, 285 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 286 287 return !bounds.isEmpty(); 288} 289 290// ---------------------------------------------------------------------------- 291// Transforms 292// ---------------------------------------------------------------------------- 293 294static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz, 295 OpenGLRenderer* renderer, jfloat dx, jfloat dy) { 296 renderer->translate(dx, dy); 297} 298 299static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz, 300 OpenGLRenderer* renderer, jfloat degrees) { 301 renderer->rotate(degrees); 302} 303 304static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz, 305 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 306 renderer->scale(sx, sy); 307} 308 309static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz, 310 OpenGLRenderer* renderer, jfloat sx, jfloat sy) { 311 renderer->skew(sx, sy); 312} 313 314static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz, 315 OpenGLRenderer* renderer, SkMatrix* matrix) { 316 renderer->setMatrix(matrix); 317} 318 319static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz, 320 OpenGLRenderer* renderer, SkMatrix* matrix) { 321 renderer->getMatrix(matrix); 322} 323 324static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz, 325 OpenGLRenderer* renderer, SkMatrix* matrix) { 326 renderer->concatMatrix(matrix); 327} 328 329// ---------------------------------------------------------------------------- 330// Drawing 331// ---------------------------------------------------------------------------- 332 333static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz, 334 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left, 335 float top, SkPaint* paint) { 336 // This object allows the renderer to allocate a global JNI ref to the buffer object. 337 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 338 339 renderer->drawBitmap(bitmap, left, top, paint); 340} 341 342static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz, 343 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 344 float srcLeft, float srcTop, float srcRight, float srcBottom, 345 float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) { 346 // This object allows the renderer to allocate a global JNI ref to the buffer object. 347 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 348 349 renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, 350 dstLeft, dstTop, dstRight, dstBottom, paint); 351} 352 353static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz, 354 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix, 355 SkPaint* paint) { 356 // This object allows the renderer to allocate a global JNI ref to the buffer object. 357 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 358 359 renderer->drawBitmap(bitmap, matrix, paint); 360} 361 362static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz, 363 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, 364 jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, 365 jintArray colors, jint colorOffset, SkPaint* paint) { 366 // This object allows the renderer to allocate a global JNI ref to the buffer object. 367 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 368 369 jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL; 370 jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL; 371 372 renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint); 373 374 if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0); 375 if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0); 376} 377 378static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz, 379 OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks, 380 float left, float top, float right, float bottom, SkPaint* paint) { 381 // This object allows the renderer to allocate a global JNI ref to the buffer object. 382 JavaHeapBitmapRef bitmapRef(env, bitmap, buffer); 383 384 jbyte* storage = env->GetByteArrayElements(chunks, NULL); 385 Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage); 386 Res_png_9patch::deserialize(patch); 387 388 renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0], 389 &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors, 390 left, top, right, bottom, paint); 391 392 env->ReleaseByteArrayElements(chunks, storage, 0); 393} 394 395static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz, 396 OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) { 397 renderer->drawColor(color, mode); 398} 399 400static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz, 401 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 402 SkPaint* paint) { 403 renderer->drawRect(left, top, right, bottom, paint); 404} 405 406static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz, 407 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 408 jfloat rx, jfloat ry, SkPaint* paint) { 409 renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint); 410} 411 412static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz, 413 OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) { 414 renderer->drawCircle(x, y, radius, paint); 415} 416 417static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz, 418 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 419 SkPaint* paint) { 420 renderer->drawOval(left, top, right, bottom, paint); 421} 422 423static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz, 424 OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, 425 jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) { 426 renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint); 427} 428 429static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz, 430 OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) { 431 SkRegion::Iterator it(*region); 432 while (!it.done()) { 433 const SkIRect& r = it.rect(); 434 renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); 435 it.next(); 436 } 437} 438 439static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz, 440 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 441 jfloat* storage = env->GetFloatArrayElements(points, NULL); 442 renderer->drawPoints(storage + offset, count, paint); 443 env->ReleaseFloatArrayElements(points, storage, 0); 444} 445 446static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz, 447 OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) { 448 renderer->drawPath(path, paint); 449} 450 451static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz, 452 OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) { 453 jfloat* storage = env->GetFloatArrayElements(points, NULL); 454 renderer->drawLines(storage + offset, count, paint); 455 env->ReleaseFloatArrayElements(points, storage, 0); 456} 457 458// ---------------------------------------------------------------------------- 459// Shaders and color filters 460// ---------------------------------------------------------------------------- 461 462static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz, 463 OpenGLRenderer* renderer, jint modifiers) { 464 if (modifiers & MODIFIER_SHADOW) renderer->resetShadow(); 465 if (modifiers & MODIFIER_SHADER) renderer->resetShader(); 466 if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter(); 467} 468 469static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz, 470 OpenGLRenderer* renderer, SkiaShader* shader) { 471 renderer->setupShader(shader); 472} 473 474static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz, 475 OpenGLRenderer* renderer, SkiaColorFilter* filter) { 476 renderer->setupColorFilter(filter); 477} 478 479static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz, 480 OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) { 481 renderer->setupShadow(radius, dx, dy, color); 482} 483 484// ---------------------------------------------------------------------------- 485// Text 486// ---------------------------------------------------------------------------- 487 488static void renderText(OpenGLRenderer* renderer, const jchar* text, int count, 489 jfloat x, jfloat y, int flags, SkPaint* paint) { 490#if RTL_USE_HARFBUZZ 491 sp<TextLayoutCacheValue> value; 492#if USE_TEXT_LAYOUT_CACHE 493 value = TextLayoutCache::getInstance().getValue(paint, text, 0, count, count, flags); 494 if (value == NULL) { 495 LOGE("Cannot get TextLayoutCache value"); 496 return ; 497 } 498#else 499 value = new TextLayoutCacheValue(); 500 value->computeValues(paint, text, 0, count, count, flags); 501#endif 502 const jchar* glyphs = value->getGlyphs(); 503 size_t glyphsCount = value->getGlyphsCount(); 504 int bytesCount = glyphsCount * sizeof(jchar); 505 renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint); 506#else 507 const jchar *workText; 508 jchar* buffer = NULL; 509 int32_t workBytes; 510 if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) { 511 renderer->drawText((const char*) workText, workBytes, count, x, y, paint); 512 free(buffer); 513 } 514#endif 515} 516 517static void renderTextRun(OpenGLRenderer* renderer, const jchar* text, 518 jint start, jint count, jint contextCount, jfloat x, jfloat y, 519 int flags, SkPaint* paint) { 520#if RTL_USE_HARFBUZZ 521 sp<TextLayoutCacheValue> value; 522#if USE_TEXT_LAYOUT_CACHE 523 value = TextLayoutCache::getInstance().getValue(paint, text, start, count, contextCount, flags); 524 if (value == NULL) { 525 LOGE("Cannot get TextLayoutCache value"); 526 return ; 527 } 528#else 529 value = new TextLayoutCacheValue(); 530 value->computeValues(paint, text, start, count, contextCount, flags); 531#endif 532 const jchar* glyphs = value->getGlyphs(); 533 size_t glyphsCount = value->getGlyphsCount(); 534 int bytesCount = glyphsCount * sizeof(jchar); 535 renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint); 536#else 537 uint8_t rtl = flags & 0x1; 538 if (rtl) { 539 SkAutoSTMalloc<80, jchar> buffer(contextCount); 540 jchar* shaped = buffer.get(); 541 if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) { 542 renderer->drawText((const char*) shaped, count << 1, count, x, y, paint); 543 } else { 544 LOGW("drawTextRun error"); 545 } 546 } else { 547 renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint); 548 } 549#endif 550} 551 552static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz, 553 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 554 jfloat x, jfloat y, jint flags, SkPaint* paint) { 555 jchar* textArray = env->GetCharArrayElements(text, NULL); 556 renderText(renderer, textArray + index, count, x, y, flags, paint); 557 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 558} 559 560static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz, 561 OpenGLRenderer* renderer, jstring text, jint start, jint end, 562 jfloat x, jfloat y, jint flags, SkPaint* paint) { 563 const jchar* textArray = env->GetStringChars(text, NULL); 564 renderText(renderer, textArray + start, end - start, x, y, flags, paint); 565 env->ReleaseStringChars(text, textArray); 566} 567 568static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz, 569 OpenGLRenderer* renderer, jcharArray text, jint index, jint count, 570 jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags, 571 SkPaint* paint) { 572 jchar* textArray = env->GetCharArrayElements(text, NULL); 573 renderTextRun(renderer, textArray + contextIndex, index - contextIndex, 574 count, contextCount, x, y, dirFlags, paint); 575 env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); 576 } 577 578static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz, 579 OpenGLRenderer* renderer, jstring text, jint start, jint end, 580 jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags, 581 SkPaint* paint) { 582 const jchar* textArray = env->GetStringChars(text, NULL); 583 jint count = end - start; 584 jint contextCount = contextEnd - contextStart; 585 renderTextRun(renderer, textArray + contextStart, start - contextStart, 586 count, contextCount, x, y, dirFlags, paint); 587 env->ReleaseStringChars(text, textArray); 588} 589 590// ---------------------------------------------------------------------------- 591// Display lists 592// ---------------------------------------------------------------------------- 593 594static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env, 595 jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) { 596 return renderer->getDisplayList(displayList); 597} 598 599static jint android_view_GLES20Canvas_getDisplayListSize(JNIEnv* env, 600 jobject clazz, DisplayList* displayList) { 601 return displayList->getSize(); 602} 603 604static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, 605 jobject clazz) { 606 return new DisplayListRenderer; 607} 608 609static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env, 610 jobject clazz, DisplayListRenderer* renderer) { 611 renderer->reset(); 612} 613 614static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env, 615 jobject clazz, DisplayList* displayList) { 616 delete displayList; 617} 618 619static bool android_view_GLES20Canvas_drawDisplayList(JNIEnv* env, 620 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList, 621 jint width, jint height, jobject dirty) { 622 android::uirenderer::Rect bounds; 623 bool redraw = renderer->drawDisplayList(displayList, width, height, bounds); 624 if (redraw && dirty != NULL) { 625 env->CallVoidMethod(dirty, gRectClassInfo.set, 626 int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); 627 } 628 return redraw; 629} 630 631static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env, 632 jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) { 633 renderer->outputDisplayList(displayList); 634} 635 636// ---------------------------------------------------------------------------- 637// Layers 638// ---------------------------------------------------------------------------- 639 640static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz, 641 OpenGLRenderer* renderer) { 642 renderer->interrupt(); 643} 644 645static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz, 646 OpenGLRenderer* renderer) { 647 renderer->resume(); 648} 649 650static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env, 651 jobject clazz, Layer* layer) { 652 if (layer) { 653 return new LayerRenderer(layer); 654 } 655 return NULL; 656} 657 658static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz, 659 jboolean isOpaque, jintArray layerInfo) { 660 Layer* layer = LayerRenderer::createTextureLayer(isOpaque); 661 662 if (layer) { 663 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 664 storage[0] = layer->getTexture(); 665 env->ReleaseIntArrayElements(layerInfo, storage, 0); 666 } 667 668 return layer; 669} 670 671static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz, 672 jint width, jint height, jboolean isOpaque, jintArray layerInfo) { 673 Layer* layer = LayerRenderer::createLayer(width, height, isOpaque); 674 675 if (layer) { 676 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 677 storage[0] = layer->getWidth(); 678 storage[1] = layer->getHeight(); 679 env->ReleaseIntArrayElements(layerInfo, storage, 0); 680 } 681 682 return layer; 683} 684 685static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz, 686 Layer* layer, jint width, jint height, jintArray layerInfo) { 687 LayerRenderer::resizeLayer(layer, width, height); 688 689 jint* storage = env->GetIntArrayElements(layerInfo, NULL); 690 storage[0] = layer->getWidth(); 691 storage[1] = layer->getHeight(); 692 env->ReleaseIntArrayElements(layerInfo, storage, 0); 693} 694 695static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz, 696 Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) { 697 float transform[16]; 698 sp<SurfaceTexture> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface)); 699 700 surfaceTexture->updateTexImage(); 701 surfaceTexture->getTransformMatrix(transform); 702 GLenum renderTarget = surfaceTexture->getCurrentTextureTarget(); 703 704 LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform); 705} 706 707static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz, 708 Layer* layer, SkMatrix* matrix) { 709 710 layer->getTransform().load(*matrix); 711} 712 713static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) { 714 LayerRenderer::destroyLayer(layer); 715} 716 717static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env, 718 jobject clazz, Layer* layer) { 719 LayerRenderer::destroyLayerDeferred(layer); 720} 721 722static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz, 723 OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) { 724 renderer->drawLayer(layer, x, y, paint); 725} 726 727static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz, 728 Layer* layer, SkBitmap* bitmap) { 729 return LayerRenderer::copyLayer(layer, bitmap); 730} 731 732#endif // USE_OPENGL_RENDERER 733 734// ---------------------------------------------------------------------------- 735// Common 736// ---------------------------------------------------------------------------- 737 738static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) { 739#ifdef USE_OPENGL_RENDERER 740 char prop[PROPERTY_VALUE_MAX]; 741 if (property_get("ro.kernel.qemu", prop, NULL) == 0) { 742 // not in the emulator 743 return JNI_TRUE; 744 } 745 // In the emulator this property will be set to 1 when hardware GLES is 746 // enabled, 0 otherwise. On old emulator versions it will be undefined. 747 property_get("ro.kernel.qemu.gles", prop, "0"); 748 return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE; 749#else 750 return JNI_FALSE; 751#endif 752} 753 754// ---------------------------------------------------------------------------- 755// Logging 756// ---------------------------------------------------------------------------- 757 758static void 759android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) { 760#ifdef USE_OPENGL_RENDERER 761 int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor); 762 android::uirenderer::DisplayList::outputLogBuffer(fd); 763#endif // USE_OPENGL_RENDERER 764} 765 766// ---------------------------------------------------------------------------- 767// JNI Glue 768// ---------------------------------------------------------------------------- 769 770const char* const kClassPathName = "android/view/GLES20Canvas"; 771 772static JNINativeMethod gMethods[] = { 773 { "nIsAvailable", "()Z", (void*) android_view_GLES20Canvas_isAvailable }, 774 775#ifdef USE_OPENGL_RENDERER 776 { "nIsBackBufferPreserved", "()Z", (void*) android_view_GLES20Canvas_isBackBufferPreserved }, 777 { "nPreserveBackBuffer", "()Z", (void*) android_view_GLES20Canvas_preserveBackBuffer }, 778 { "nDisableVsync", "()V", (void*) android_view_GLES20Canvas_disableVsync }, 779 { "nFlushCaches", "(I)V", (void*) android_view_GLES20Canvas_flushCaches }, 780 { "nInitCaches", "()V", (void*) android_view_GLES20Canvas_initCaches }, 781 { "nTerminateCaches", "()V", (void*) android_view_GLES20Canvas_terminateCaches }, 782 783 { "nCreateRenderer", "()I", (void*) android_view_GLES20Canvas_createRenderer }, 784 { "nDestroyRenderer", "(I)V", (void*) android_view_GLES20Canvas_destroyRenderer }, 785 { "nSetViewport", "(III)V", (void*) android_view_GLES20Canvas_setViewport }, 786 { "nPrepare", "(IZ)V", (void*) android_view_GLES20Canvas_prepare }, 787 { "nPrepareDirty", "(IIIIIZ)V", (void*) android_view_GLES20Canvas_prepareDirty }, 788 { "nFinish", "(I)V", (void*) android_view_GLES20Canvas_finish }, 789 790 { "nCallDrawGLFunction", "(II)Z", 791 (void*) android_view_GLES20Canvas_callDrawGLFunction }, 792 793 { "nSave", "(II)I", (void*) android_view_GLES20Canvas_save }, 794 { "nRestore", "(I)V", (void*) android_view_GLES20Canvas_restore }, 795 { "nRestoreToCount", "(II)V", (void*) android_view_GLES20Canvas_restoreToCount }, 796 { "nGetSaveCount", "(I)I", (void*) android_view_GLES20Canvas_getSaveCount }, 797 798 { "nSaveLayer", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayer }, 799 { "nSaveLayer", "(III)I", (void*) android_view_GLES20Canvas_saveLayerClip }, 800 { "nSaveLayerAlpha", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayerAlpha }, 801 { "nSaveLayerAlpha", "(III)I", (void*) android_view_GLES20Canvas_saveLayerAlphaClip }, 802 803 { "nQuickReject", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_quickReject }, 804 { "nClipRect", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_clipRectF }, 805 { "nClipRect", "(IIIIII)Z", (void*) android_view_GLES20Canvas_clipRect }, 806 807 { "nTranslate", "(IFF)V", (void*) android_view_GLES20Canvas_translate }, 808 { "nRotate", "(IF)V", (void*) android_view_GLES20Canvas_rotate }, 809 { "nScale", "(IFF)V", (void*) android_view_GLES20Canvas_scale }, 810 { "nSkew", "(IFF)V", (void*) android_view_GLES20Canvas_skew }, 811 812 { "nSetMatrix", "(II)V", (void*) android_view_GLES20Canvas_setMatrix }, 813 { "nGetMatrix", "(II)V", (void*) android_view_GLES20Canvas_getMatrix }, 814 { "nConcatMatrix", "(II)V", (void*) android_view_GLES20Canvas_concatMatrix }, 815 816 { "nDrawBitmap", "(II[BFFI)V", (void*) android_view_GLES20Canvas_drawBitmap }, 817 { "nDrawBitmap", "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect }, 818 { "nDrawBitmap", "(II[BII)V", (void*) android_view_GLES20Canvas_drawBitmapMatrix }, 819 820 { "nDrawBitmapMesh", "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh }, 821 822 { "nDrawPatch", "(II[B[BFFFFI)V", (void*) android_view_GLES20Canvas_drawPatch }, 823 824 { "nDrawColor", "(III)V", (void*) android_view_GLES20Canvas_drawColor }, 825 { "nDrawRect", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawRect }, 826 { "nDrawRects", "(III)V", (void*) android_view_GLES20Canvas_drawRects }, 827 { "nDrawRoundRect", "(IFFFFFFI)V", (void*) android_view_GLES20Canvas_drawRoundRect }, 828 { "nDrawCircle", "(IFFFI)V", (void*) android_view_GLES20Canvas_drawCircle }, 829 { "nDrawOval", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawOval }, 830 { "nDrawArc", "(IFFFFFFZI)V", (void*) android_view_GLES20Canvas_drawArc }, 831 { "nDrawPoints", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawPoints }, 832 833 { "nDrawPath", "(III)V", (void*) android_view_GLES20Canvas_drawPath }, 834 { "nDrawLines", "(I[FIII)V", (void*) android_view_GLES20Canvas_drawLines }, 835 836 { "nResetModifiers", "(II)V", (void*) android_view_GLES20Canvas_resetModifiers }, 837 { "nSetupShader", "(II)V", (void*) android_view_GLES20Canvas_setupShader }, 838 { "nSetupColorFilter", "(II)V", (void*) android_view_GLES20Canvas_setupColorFilter }, 839 { "nSetupShadow", "(IFFFI)V", (void*) android_view_GLES20Canvas_setupShadow }, 840 841 { "nDrawText", "(I[CIIFFII)V", (void*) android_view_GLES20Canvas_drawTextArray }, 842 { "nDrawText", "(ILjava/lang/String;IIFFII)V", 843 (void*) android_view_GLES20Canvas_drawText }, 844 845 { "nDrawTextRun", "(I[CIIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRunArray }, 846 { "nDrawTextRun", "(ILjava/lang/String;IIIIFFII)V", 847 (void*) android_view_GLES20Canvas_drawTextRun }, 848 849 { "nGetClipBounds", "(ILandroid/graphics/Rect;)Z", 850 (void*) android_view_GLES20Canvas_getClipBounds }, 851 852 { "nGetDisplayList", "(II)I", (void*) android_view_GLES20Canvas_getDisplayList }, 853 { "nDestroyDisplayList", "(I)V", (void*) android_view_GLES20Canvas_destroyDisplayList }, 854 { "nGetDisplayListSize", "(I)I", (void*) android_view_GLES20Canvas_getDisplayListSize }, 855 { "nCreateDisplayListRenderer", "()I", (void*) android_view_GLES20Canvas_createDisplayListRenderer }, 856 { "nResetDisplayListRenderer", "(I)V", (void*) android_view_GLES20Canvas_resetDisplayListRenderer }, 857 { "nDrawDisplayList", "(IIIILandroid/graphics/Rect;)Z", 858 (void*) android_view_GLES20Canvas_drawDisplayList }, 859 { "nOutputDisplayList", "(II)V", (void*) android_view_GLES20Canvas_outputDisplayList }, 860 { "nInterrupt", "(I)V", (void*) android_view_GLES20Canvas_interrupt }, 861 { "nResume", "(I)V", (void*) android_view_GLES20Canvas_resume }, 862 863 { "nCreateLayerRenderer", "(I)I", (void*) android_view_GLES20Canvas_createLayerRenderer }, 864 { "nCreateLayer", "(IIZ[I)I", (void*) android_view_GLES20Canvas_createLayer }, 865 { "nResizeLayer", "(III[I)V" , (void*) android_view_GLES20Canvas_resizeLayer }, 866 { "nCreateTextureLayer", "(Z[I)I", (void*) android_view_GLES20Canvas_createTextureLayer }, 867 { "nUpdateTextureLayer", "(IIIZLandroid/graphics/SurfaceTexture;)V", 868 (void*) android_view_GLES20Canvas_updateTextureLayer }, 869 { "nSetTextureLayerTransform", "(II)V", (void*) android_view_GLES20Canvas_setTextureLayerTransform }, 870 { "nDestroyLayer", "(I)V", (void*) android_view_GLES20Canvas_destroyLayer }, 871 { "nDestroyLayerDeferred", "(I)V", (void*) android_view_GLES20Canvas_destroyLayerDeferred }, 872 { "nDrawLayer", "(IIFFI)V", (void*) android_view_GLES20Canvas_drawLayer }, 873 { "nCopyLayer", "(II)Z", (void*) android_view_GLES20Canvas_copyLayer }, 874 875 { "nGetMaximumTextureWidth", "()I", (void*) android_view_GLES20Canvas_getMaxTextureWidth }, 876 { "nGetMaximumTextureHeight", "()I", (void*) android_view_GLES20Canvas_getMaxTextureHeight }, 877 878#endif 879}; 880 881static JNINativeMethod gActivityThreadMethods[] = { 882 { "dumpGraphicsInfo", "(Ljava/io/FileDescriptor;)V", 883 (void*) android_app_ActivityThread_dumpGraphics } 884}; 885 886 887#ifdef USE_OPENGL_RENDERER 888 #define FIND_CLASS(var, className) \ 889 var = env->FindClass(className); \ 890 LOG_FATAL_IF(! var, "Unable to find class " className); 891 892 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ 893 var = env->GetMethodID(clazz, methodName, methodDescriptor); \ 894 LOG_FATAL_IF(! var, "Unable to find method " methodName); 895#else 896 #define FIND_CLASS(var, className) 897 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) 898#endif 899 900int register_android_view_GLES20Canvas(JNIEnv* env) { 901 jclass clazz; 902 FIND_CLASS(clazz, "android/graphics/Rect"); 903 GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V"); 904 905 return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); 906} 907 908const char* const kActivityThreadPathName = "android/app/ActivityThread"; 909 910int register_android_app_ActivityThread(JNIEnv* env) { 911 return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName, 912 gActivityThreadMethods, NELEM(gActivityThreadMethods)); 913} 914 915}; 916