graphics_utils.cpp revision df44c7670d1fa36fffb614ce04bf16ba25ef65d0
1991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon/* 2991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * Copyright (C) 2012 The Android Open Source Project 3991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * 4991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * Licensed under the Apache License, Version 2.0 (the "License"); 5991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * you may not use this file except in compliance with the License. 6991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * You may obtain a copy of the License at 7991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * 8991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * http://www.apache.org/licenses/LICENSE-2.0 9991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * 10991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * Unless required by applicable law or agreed to in writing, software 11991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * distributed under the License is distributed on an "AS IS" BASIS, 12991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * See the License for the specific language governing permissions and 14991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon * limitations under the License. 15991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon */ 16991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 17991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon// Provides a webviewchromium glue layer adapter from the internal Android 18991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon// graphics types into the types the chromium stack expects, and back. 19991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 20991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#define LOG_TAG "webviewchromium_plat_support" 21991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 22c5cde8c18df853e11d1ec528508fd0fe2e742d5cKaan Baloglu#include "android_webview/public/browser/draw_gl.h" 23991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#include "android_webview/public/browser/draw_sw.h" 24991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 25991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#include <cstdlib> 26991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#include <jni.h> 27991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#include <utils/Log.h> 28c5cde8c18df853e11d1ec528508fd0fe2e742d5cKaan Baloglu#include "graphic_buffer_impl.h" 29991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#include "GraphicsJNI.h" 30a4f187ef3723a330f2145cea5a4f83e486199137Jonathan Dixon#include "SkCanvasStateUtils.h" 31f15e28c8d30c2ccea58871c9d22f8b47e53d6ea4Leandro Gracia Gil#include "SkGraphics.h" 32f15e28c8d30c2ccea58871c9d22f8b47e53d6ea4Leandro Gracia Gil#include "SkPicture.h" 33991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 34991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon#define NELEM(x) ((int) (sizeof(x) / sizeof((x)[0]))) 35991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 36991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonnamespace android { 37991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonnamespace { 38991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 395c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixonclass PixelInfo : public AwPixelInfo { 405c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon public: 41a4f187ef3723a330f2145cea5a4f83e486199137Jonathan Dixon PixelInfo(SkCanvas* canvas); 425c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon ~PixelInfo(); 43991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon}; 44991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 455c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon 46a4f187ef3723a330f2145cea5a4f83e486199137Jonathan DixonPixelInfo::PixelInfo(SkCanvas* canvas) { 47364e97a049927e74db4888d19c2f4cee17e91a27Jonathan Dixon memset(this, 0, sizeof(AwPixelInfo)); 48364e97a049927e74db4888d19c2f4cee17e91a27Jonathan Dixon version = kAwPixelInfoVersion; 49a4f187ef3723a330f2145cea5a4f83e486199137Jonathan Dixon state = SkCanvasStateUtils::CaptureCanvasState(canvas); 50364e97a049927e74db4888d19c2f4cee17e91a27Jonathan Dixon} 515c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon 52a4f187ef3723a330f2145cea5a4f83e486199137Jonathan DixonPixelInfo::~PixelInfo() { 53a4f187ef3723a330f2145cea5a4f83e486199137Jonathan Dixon if (state) 54a4f187ef3723a330f2145cea5a4f83e486199137Jonathan Dixon SkCanvasStateUtils::ReleaseCanvasState(state); 555c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon} 565c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon 575c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan DixonAwPixelInfo* GetPixels(JNIEnv* env, jobject java_canvas) { 585c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, java_canvas); 595c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon if (!canvas) 605c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon return NULL; 615c324e7af9e99afec4caf6cd48aecf2d1a596b28Jonathan Dixon 6286abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon // Workarounds for http://crbug.com/271096: SW draw only supports 6386abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon // translate & scale transforms, and a simple rectangular clip. 6486abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon // (This also avoids significant wasted time in calling 6586abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon // SkCanvasStateUtils::CaptureCanvasState when the clip is complex). 66e841604a0e87664b009fe713167db941a41604b4Leon Scroggins if (!canvas->isClipRect() || 6786abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon (canvas->getTotalMatrix().getType() & 6886abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon ~(SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask))) { 6986abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon return NULL; 7086abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon } 7186abeb66b6f8237f85ccce79495f15ace437a96aJonathan Dixon 728ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch PixelInfo* pixels = new PixelInfo(canvas); 738ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch if (!pixels->state) { 748ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch delete pixels; 758ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch pixels = NULL; 768ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch } 778ec5fb8559251164082b3f050c090ceb740a14e8Ben Murdoch return pixels; 78991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} 79991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 80991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonvoid ReleasePixels(AwPixelInfo* pixels) { 81991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon delete static_cast<PixelInfo*>(pixels); 82991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} 83991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 842ddcc98cb29e567ea545b3eba2fedc576d1f5365Ross McIlroyjlong GetDrawSWFunctionTable(JNIEnv* env, jclass) { 854cb347aeb733d199418472de549c24a31d3e7477Bo Liu static AwDrawSWFunctionTable function_table; 86df44c7670d1fa36fffb614ce04bf16ba25ef65d0Bo Liu function_table.version = kAwDrawSWFunctionTableVersion; 874cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.access_pixels = &GetPixels; 884cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.release_pixels = &ReleasePixels; 892ddcc98cb29e567ea545b3eba2fedc576d1f5365Ross McIlroy return reinterpret_cast<intptr_t>(&function_table); 90991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} 91991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 922ddcc98cb29e567ea545b3eba2fedc576d1f5365Ross McIlroyjlong GetDrawGLFunctionTable(JNIEnv* env, jclass) { 934cb347aeb733d199418472de549c24a31d3e7477Bo Liu static AwDrawGLFunctionTable function_table; 94df44c7670d1fa36fffb614ce04bf16ba25ef65d0Bo Liu function_table.version = kAwDrawGLFunctionTableVersion; 954cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.create_graphic_buffer = &GraphicBufferImpl::Create; 964cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.release_graphic_buffer = &GraphicBufferImpl::Release; 974cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.map = &GraphicBufferImpl::MapStatic; 984cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.unmap = &GraphicBufferImpl::UnmapStatic; 994cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.get_native_buffer = &GraphicBufferImpl::GetNativeBufferStatic; 1004cb347aeb733d199418472de549c24a31d3e7477Bo Liu function_table.get_stride = &GraphicBufferImpl::GetStrideStatic; 1012ddcc98cb29e567ea545b3eba2fedc576d1f5365Ross McIlroy return reinterpret_cast<intptr_t>(&function_table); 102c5cde8c18df853e11d1ec528508fd0fe2e742d5cKaan Baloglu} 103c5cde8c18df853e11d1ec528508fd0fe2e742d5cKaan Baloglu 104991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonconst char kClassName[] = "com/android/webview/chromium/GraphicsUtils"; 105991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonconst JNINativeMethod kJniMethods[] = { 10658702ab5d6fe80a179dff41ec1741cf3cd7bf3dfRoss McIlroy { "nativeGetDrawSWFunctionTable", "()J", 107991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon reinterpret_cast<void*>(GetDrawSWFunctionTable) }, 10858702ab5d6fe80a179dff41ec1741cf3cd7bf3dfRoss McIlroy { "nativeGetDrawGLFunctionTable", "()J", 109c5cde8c18df853e11d1ec528508fd0fe2e742d5cKaan Baloglu reinterpret_cast<void*>(GetDrawGLFunctionTable) }, 110991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon}; 111991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 112991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} // namespace 113991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 114991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixonvoid RegisterGraphicsUtils(JNIEnv* env) { 115991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon jclass clazz = env->FindClass(kClassName); 116991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon LOG_ALWAYS_FATAL_IF(!clazz, "Unable to find class '%s'", kClassName); 117991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 118991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon int res = env->RegisterNatives(clazz, kJniMethods, NELEM(kJniMethods)); 119991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon LOG_ALWAYS_FATAL_IF(res < 0, "register native methods failed: res=%d", res); 120991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} 121991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon 122991b0c63bb8c0b0d8577a255b026117e9f37ceceJonathan Dixon} // namespace android 123