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      1 /*
      2  * Copyright (C) 2015 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 #include "TestUtils.h"
     18 
     19 #include "hwui/Paint.h"
     20 #include "DeferredLayerUpdater.h"
     21 
     22 #include <renderthread/EglManager.h>
     23 #include <renderthread/OpenGLPipeline.h>
     24 #include <pipeline/skia/SkiaOpenGLPipeline.h>
     25 #include <pipeline/skia/SkiaVulkanPipeline.h>
     26 #include <renderthread/VulkanManager.h>
     27 #include <utils/Unicode.h>
     28 #include <SkClipStack.h>
     29 
     30 #include <SkGlyphCache.h>
     31 
     32 namespace android {
     33 namespace uirenderer {
     34 
     35 SkColor TestUtils::interpolateColor(float fraction, SkColor start, SkColor end) {
     36     int startA = (start >> 24) & 0xff;
     37     int startR = (start >> 16) & 0xff;
     38     int startG = (start >> 8) & 0xff;
     39     int startB = start & 0xff;
     40 
     41     int endA = (end >> 24) & 0xff;
     42     int endR = (end >> 16) & 0xff;
     43     int endG = (end >> 8) & 0xff;
     44     int endB = end & 0xff;
     45 
     46     return (int)((startA + (int)(fraction * (endA - startA))) << 24)
     47             | (int)((startR + (int)(fraction * (endR - startR))) << 16)
     48             | (int)((startG + (int)(fraction * (endG - startG))) << 8)
     49             | (int)((startB + (int)(fraction * (endB - startB))));
     50 }
     51 
     52 sp<DeferredLayerUpdater> TestUtils::createTextureLayerUpdater(
     53         renderthread::RenderThread& renderThread) {
     54     android::uirenderer::renderthread::IRenderPipeline* pipeline;
     55     if (Properties::getRenderPipelineType() == RenderPipelineType::OpenGL) {
     56         pipeline = new renderthread::OpenGLPipeline(renderThread);
     57     } else if (Properties::getRenderPipelineType() == RenderPipelineType::SkiaGL) {
     58         pipeline = new skiapipeline::SkiaOpenGLPipeline(renderThread);
     59     } else {
     60         pipeline = new skiapipeline::SkiaVulkanPipeline(renderThread);
     61     }
     62     sp<DeferredLayerUpdater> layerUpdater = pipeline->createTextureLayer();
     63     layerUpdater->apply();
     64     delete pipeline;
     65     return layerUpdater;
     66 }
     67 
     68 sp<DeferredLayerUpdater> TestUtils::createTextureLayerUpdater(
     69         renderthread::RenderThread& renderThread, uint32_t width, uint32_t height,
     70         const SkMatrix& transform) {
     71     sp<DeferredLayerUpdater> layerUpdater = createTextureLayerUpdater(renderThread);
     72     layerUpdater->backingLayer()->getTransform().load(transform);
     73     layerUpdater->setSize(width, height);
     74     layerUpdater->setTransform(&transform);
     75 
     76     // updateLayer so it's ready to draw
     77     layerUpdater->updateLayer(true, Matrix4::identity().data);
     78     if (layerUpdater->backingLayer()->getApi() == Layer::Api::OpenGL) {
     79         static_cast<GlLayer*>(layerUpdater->backingLayer())->setRenderTarget(
     80                 GL_TEXTURE_EXTERNAL_OES);
     81     }
     82     return layerUpdater;
     83 }
     84 
     85 void TestUtils::layoutTextUnscaled(const SkPaint& paint, const char* text,
     86         std::vector<glyph_t>* outGlyphs, std::vector<float>* outPositions,
     87         float* outTotalAdvance, Rect* outBounds) {
     88     Rect bounds;
     89     float totalAdvance = 0;
     90     SkSurfaceProps surfaceProps(0, kUnknown_SkPixelGeometry);
     91     SkAutoGlyphCacheNoGamma autoCache(paint, &surfaceProps, &SkMatrix::I());
     92     while (*text != '\0') {
     93         size_t nextIndex = 0;
     94         int32_t unichar = utf32_from_utf8_at(text, 4, 0, &nextIndex);
     95         text += nextIndex;
     96 
     97         glyph_t glyph = autoCache.getCache()->unicharToGlyph(unichar);
     98         autoCache.getCache()->unicharToGlyph(unichar);
     99 
    100         // push glyph and its relative position
    101         outGlyphs->push_back(glyph);
    102         outPositions->push_back(totalAdvance);
    103         outPositions->push_back(0);
    104 
    105         // compute bounds
    106         SkGlyph skGlyph = autoCache.getCache()->getUnicharMetrics(unichar);
    107         Rect glyphBounds(skGlyph.fWidth, skGlyph.fHeight);
    108         glyphBounds.translate(totalAdvance + skGlyph.fLeft, skGlyph.fTop);
    109         bounds.unionWith(glyphBounds);
    110 
    111         // advance next character
    112         SkScalar skWidth;
    113         paint.getTextWidths(&glyph, sizeof(glyph), &skWidth, NULL);
    114         totalAdvance += skWidth;
    115     }
    116     *outBounds = bounds;
    117     *outTotalAdvance = totalAdvance;
    118 }
    119 
    120 
    121 void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text,
    122         const SkPaint& paint, float x, float y) {
    123     auto utf16 = asciiToUtf16(text);
    124     canvas->drawText(utf16.get(), 0, strlen(text), strlen(text), x, y, 0, paint, nullptr);
    125 }
    126 
    127 void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text,
    128         const SkPaint& paint, const SkPath& path) {
    129     auto utf16 = asciiToUtf16(text);
    130     canvas->drawTextOnPath(utf16.get(), strlen(text), 0, path, 0, 0, paint, nullptr);
    131 }
    132 
    133 void TestUtils::TestTask::run() {
    134     // RenderState only valid once RenderThread is running, so queried here
    135     renderthread::RenderThread& renderThread = renderthread::RenderThread::getInstance();
    136     if (Properties::getRenderPipelineType() == RenderPipelineType::SkiaVulkan) {
    137         renderThread.vulkanManager().initialize();
    138     } else {
    139         renderThread.eglManager().initialize();
    140     }
    141 
    142     rtCallback(renderThread);
    143 
    144     if (Properties::getRenderPipelineType() == RenderPipelineType::SkiaVulkan) {
    145         renderThread.vulkanManager().destroy();
    146     } else {
    147         renderThread.renderState().flush(Caches::FlushMode::Full);
    148         renderThread.eglManager().destroy();
    149     }
    150 }
    151 
    152 std::unique_ptr<uint16_t[]> TestUtils::asciiToUtf16(const char* str) {
    153     const int length = strlen(str);
    154     std::unique_ptr<uint16_t[]> utf16(new uint16_t[length]);
    155     for (int i = 0; i < length; i++) {
    156         utf16.get()[i] = str[i];
    157     }
    158     return utf16;
    159 }
    160 
    161 SkColor TestUtils::getColor(const sk_sp<SkSurface>& surface, int x, int y) {
    162     SkPixmap pixmap;
    163     if (!surface->peekPixels(&pixmap)) {
    164         return 0;
    165     }
    166     switch (pixmap.colorType()) {
    167         case kGray_8_SkColorType: {
    168             const uint8_t* addr = pixmap.addr8(x, y);
    169             return SkColorSetRGB(*addr, *addr, *addr);
    170         }
    171         case kAlpha_8_SkColorType: {
    172             const uint8_t* addr = pixmap.addr8(x, y);
    173             return SkColorSetA(0, addr[0]);
    174         }
    175         case kRGB_565_SkColorType: {
    176             const uint16_t* addr = pixmap.addr16(x, y);
    177             return SkPixel16ToColor(addr[0]);
    178         }
    179         case kARGB_4444_SkColorType: {
    180             const uint16_t* addr = pixmap.addr16(x, y);
    181             SkPMColor c = SkPixel4444ToPixel32(addr[0]);
    182             return SkUnPreMultiply::PMColorToColor(c);
    183         }
    184         case kBGRA_8888_SkColorType: {
    185             const uint32_t* addr = pixmap.addr32(x, y);
    186             SkPMColor c = SkSwizzle_BGRA_to_PMColor(addr[0]);
    187             return SkUnPreMultiply::PMColorToColor(c);
    188         }
    189         case kRGBA_8888_SkColorType: {
    190             const uint32_t* addr = pixmap.addr32(x, y);
    191             SkPMColor c = SkSwizzle_RGBA_to_PMColor(addr[0]);
    192             return SkUnPreMultiply::PMColorToColor(c);
    193         }
    194         default:
    195             return 0;
    196     }
    197     return 0;
    198 }
    199 
    200 SkRect TestUtils::getClipBounds(const SkCanvas* canvas) {
    201     return SkRect::Make(canvas->getDeviceClipBounds());
    202 }
    203 
    204 SkRect TestUtils::getLocalClipBounds(const SkCanvas* canvas) {
    205     SkMatrix invertedTotalMatrix;
    206     if (!canvas->getTotalMatrix().invert(&invertedTotalMatrix)) {
    207         return SkRect::MakeEmpty();
    208     }
    209     SkRect outlineInDeviceCoord = TestUtils::getClipBounds(canvas);
    210     SkRect outlineInLocalCoord;
    211     invertedTotalMatrix.mapRect(&outlineInLocalCoord, outlineInDeviceCoord);
    212     return outlineInLocalCoord;
    213 }
    214 
    215 } /* namespace uirenderer */
    216 } /* namespace android */
    217