/* * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #define LOG_TAG "OpenGLRenderer" #include "jni.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "TextLayout.h" namespace android { using namespace uirenderer; /** * Note: OpenGLRenderer JNI layer is generated and compiled only on supported * devices. This means all the logic must be compiled only when the * preprocessor variable USE_OPENGL_RENDERER is defined. */ #ifdef USE_OPENGL_RENDERER // ---------------------------------------------------------------------------- // Java APIs // ---------------------------------------------------------------------------- static struct { jclass clazz; jmethodID set; } gRectClassInfo; // ---------------------------------------------------------------------------- // Constructors // ---------------------------------------------------------------------------- static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject canvas) { return new OpenGLRenderer; } static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer) { delete renderer; } // ---------------------------------------------------------------------------- // Setup // ---------------------------------------------------------------------------- static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jint width, jint height) { renderer->setViewport(width, height); } static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer) { renderer->prepare(); } // ---------------------------------------------------------------------------- // State // ---------------------------------------------------------------------------- static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jint flags) { return renderer->save(flags); } static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer) { return renderer->getSaveCount(); } static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer) { renderer->restore(); } static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jint saveCount) { renderer->restoreToCount(saveCount); } // ---------------------------------------------------------------------------- // Layers // ---------------------------------------------------------------------------- static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, SkPaint* paint, jint saveFlags) { return renderer->saveLayer(left, top, right, bottom, paint, saveFlags); } static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, jint alpha, jint saveFlags) { return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags); } // ---------------------------------------------------------------------------- // Clipping // ---------------------------------------------------------------------------- static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, SkCanvas::EdgeType edge) { return renderer->quickReject(left, top, right, bottom); } static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, SkRegion::Op op) { return renderer->clipRect(left, top, right, bottom, op); } static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom, SkRegion::Op op) { return renderer->clipRect(float(left), float(top), float(right), float(bottom), op); } static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jobject rect) { const android::uirenderer::Rect& bounds(renderer->getClipBounds()); env->CallVoidMethod(rect, gRectClassInfo.set, int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom)); return !bounds.isEmpty(); } // ---------------------------------------------------------------------------- // Transforms // ---------------------------------------------------------------------------- static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat dx, jfloat dy) { renderer->translate(dx, dy); } static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat degrees) { renderer->rotate(degrees); } static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat sx, jfloat sy) { renderer->scale(sx, sy); } static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkMatrix* matrix) { renderer->setMatrix(matrix); } static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkMatrix* matrix) { renderer->getMatrix(matrix); } static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkMatrix* matrix) { renderer->concatMatrix(matrix); } // ---------------------------------------------------------------------------- // Drawing // ---------------------------------------------------------------------------- static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkBitmap* bitmap, float left, float top, SkPaint* paint) { renderer->drawBitmap(bitmap, left, top, paint); } static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkBitmap* bitmap, float srcLeft, float srcTop, float srcRight, float srcBottom, float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) { renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom, dstLeft, dstTop, dstRight, dstBottom, paint); } static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) { renderer->drawBitmap(bitmap, matrix, paint); } static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray chunks, float left, float top, float right, float bottom, SkPaint* paint) { jbyte* storage = env->GetByteArrayElements(chunks, NULL); Res_png_9patch* patch = reinterpret_cast(storage); Res_png_9patch::deserialize(patch); renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint); env->ReleaseByteArrayElements(chunks, storage, 0); } static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) { renderer->drawColor(color, mode); } static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom, SkPaint* paint) { renderer->drawRect(left, top, right, bottom, paint); } static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) { SkRegion::Iterator it(*region); while (!it.done()) { const SkIRect& r = it.rect(); renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint); it.next(); } } static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) { renderer->drawPath(path, paint); } // ---------------------------------------------------------------------------- // Shaders and color filters // ---------------------------------------------------------------------------- static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer) { renderer->resetShader(); renderer->resetColorFilter(); renderer->resetShadow(); } static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkiaShader* shader) { renderer->setupShader(shader); } static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, SkiaColorFilter* filter) { renderer->setupColorFilter(filter); } static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) { renderer->setupShadow(radius, dx, dy, color); } // ---------------------------------------------------------------------------- // Text // ---------------------------------------------------------------------------- static void renderText(OpenGLRenderer* renderer, const jchar* text, int count, jfloat x, jfloat y, int flags, SkPaint* paint) { const jchar *workText; jchar* buffer = NULL; int32_t workBytes; if (TextLayout::prepareText(paint, text, count, flags, &workText, &workBytes, &buffer)) { renderer->drawText((const char*) workText, workBytes, count, x, y, paint); free(buffer); } } static void renderTextRun(OpenGLRenderer* renderer, const jchar* text, jint start, jint count, jint contextCount, jfloat x, jfloat y, int flags, SkPaint* paint) { uint8_t rtl = flags & 0x1; if (rtl) { SkAutoSTMalloc<80, jchar> buffer(contextCount); jchar* shaped = buffer.get(); if (TextLayout::prepareRtlTextRun(text, start, count, contextCount, shaped)) { renderer->drawText((const char*) shaped, count << 1, count, x, y, paint); } else { LOGW("drawTextRun error"); } } else { renderer->drawText((const char*) (text + start), count << 1, count, x, y, paint); } } static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jcharArray text, int index, int count, jfloat x, jfloat y, int flags, SkPaint* paint) { jchar* textArray = env->GetCharArrayElements(text, NULL); renderText(renderer, textArray + index, count, x, y, flags, paint); env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); } static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jstring text, int start, int end, jfloat x, jfloat y, int flags, SkPaint* paint) { const jchar* textArray = env->GetStringChars(text, NULL); renderText(renderer, textArray + start, end - start, x, y, flags, paint); env->ReleaseStringChars(text, textArray); } static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jcharArray text, int index, int count, int contextIndex, int contextCount, jfloat x, jfloat y, int dirFlags, SkPaint* paint) { jchar* textArray = env->GetCharArrayElements(text, NULL); renderTextRun(renderer, textArray + contextIndex, index - contextIndex, count, contextCount, x, y, dirFlags, paint); env->ReleaseCharArrayElements(text, textArray, JNI_ABORT); } static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject canvas, OpenGLRenderer* renderer, jstring text, int start, int end, int contextStart, int contextEnd, jfloat x, jfloat y, int dirFlags, SkPaint* paint) { const jchar* textArray = env->GetStringChars(text, NULL); jint count = end - start; jint contextCount = contextEnd - contextStart; renderTextRun(renderer, textArray + contextStart, start - contextStart, count, contextCount, x, y, dirFlags, paint); env->ReleaseStringChars(text, textArray); } #endif // USE_OPENGL_RENDERER // ---------------------------------------------------------------------------- // Common // ---------------------------------------------------------------------------- static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) { #ifdef USE_OPENGL_RENDERER return JNI_TRUE; #else return JNI_FALSE; #endif } // ---------------------------------------------------------------------------- // JNI Glue // ---------------------------------------------------------------------------- const char* const kClassPathName = "android/view/GLES20Canvas"; static JNINativeMethod gMethods[] = { { "nIsAvailable", "()Z", (void*) android_view_GLES20Canvas_isAvailable }, #ifdef USE_OPENGL_RENDERER { "nCreateRenderer", "()I", (void*) android_view_GLES20Canvas_createRenderer }, { "nDestroyRenderer", "(I)V", (void*) android_view_GLES20Canvas_destroyRenderer }, { "nSetViewport", "(III)V", (void*) android_view_GLES20Canvas_setViewport }, { "nPrepare", "(I)V", (void*) android_view_GLES20Canvas_prepare }, { "nSave", "(II)I", (void*) android_view_GLES20Canvas_save }, { "nRestore", "(I)V", (void*) android_view_GLES20Canvas_restore }, { "nRestoreToCount", "(II)V", (void*) android_view_GLES20Canvas_restoreToCount }, { "nGetSaveCount", "(I)I", (void*) android_view_GLES20Canvas_getSaveCount }, { "nSaveLayer", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayer }, { "nSaveLayerAlpha", "(IFFFFII)I", (void*) android_view_GLES20Canvas_saveLayerAlpha }, { "nQuickReject", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_quickReject }, { "nClipRect", "(IFFFFI)Z", (void*) android_view_GLES20Canvas_clipRectF }, { "nClipRect", "(IIIIII)Z", (void*) android_view_GLES20Canvas_clipRect }, { "nTranslate", "(IFF)V", (void*) android_view_GLES20Canvas_translate }, { "nRotate", "(IF)V", (void*) android_view_GLES20Canvas_rotate }, { "nScale", "(IFF)V", (void*) android_view_GLES20Canvas_scale }, { "nSetMatrix", "(II)V", (void*) android_view_GLES20Canvas_setMatrix }, { "nGetMatrix", "(II)V", (void*) android_view_GLES20Canvas_getMatrix }, { "nConcatMatrix", "(II)V", (void*) android_view_GLES20Canvas_concatMatrix }, { "nDrawBitmap", "(IIFFI)V", (void*) android_view_GLES20Canvas_drawBitmap }, { "nDrawBitmap", "(IIFFFFFFFFI)V", (void*) android_view_GLES20Canvas_drawBitmapRect }, { "nDrawBitmap", "(IIII)V", (void*) android_view_GLES20Canvas_drawBitmapMatrix }, { "nDrawPatch", "(II[BFFFFI)V", (void*) android_view_GLES20Canvas_drawPatch }, { "nDrawColor", "(III)V", (void*) android_view_GLES20Canvas_drawColor }, { "nDrawRect", "(IFFFFI)V", (void*) android_view_GLES20Canvas_drawRect }, { "nDrawRects", "(III)V", (void*) android_view_GLES20Canvas_drawRects }, { "nDrawPath", "(III)V", (void*) android_view_GLES20Canvas_drawPath }, { "nResetModifiers", "(I)V", (void*) android_view_GLES20Canvas_resetModifiers }, { "nSetupShader", "(II)V", (void*) android_view_GLES20Canvas_setupShader }, { "nSetupColorFilter", "(II)V", (void*) android_view_GLES20Canvas_setupColorFilter }, { "nSetupShadow", "(IFFFI)V", (void*) android_view_GLES20Canvas_setupShadow }, { "nDrawText", "(I[CIIFFII)V", (void*) android_view_GLES20Canvas_drawTextArray }, { "nDrawText", "(ILjava/lang/String;IIFFII)V", (void*) android_view_GLES20Canvas_drawText }, { "nDrawTextRun", "(I[CIIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRunArray }, { "nDrawTextRun", "(ILjava/lang/String;IIIIFFII)V", (void*) android_view_GLES20Canvas_drawTextRun }, { "nGetClipBounds", "(ILandroid/graphics/Rect;)Z", (void*) android_view_GLES20Canvas_getClipBounds }, #endif }; #ifdef USE_OPENGL_RENDERER #define FIND_CLASS(var, className) \ var = env->FindClass(className); \ LOG_FATAL_IF(! var, "Unable to find class " className); \ var = jclass(env->NewGlobalRef(var)); #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \ var = env->GetMethodID(clazz, methodName, methodDescriptor); \ LOG_FATAL_IF(! var, "Unable to find method " methodName); #else #define FIND_CLASS(var, className) #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) #endif int register_android_view_GLES20Canvas(JNIEnv* env) { FIND_CLASS(gRectClassInfo.clazz, "android/graphics/Rect"); GET_METHOD_ID(gRectClassInfo.set, gRectClassInfo.clazz, "set", "(IIII)V"); return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods)); } };