TestUtils.cpp revision 79abbf22d4f672208327546661e694d837f564a9
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#include "LayerRenderer.h" 22 23namespace android { 24namespace uirenderer { 25 26SkColor TestUtils::interpolateColor(float fraction, SkColor start, SkColor end) { 27 int startA = (start >> 24) & 0xff; 28 int startR = (start >> 16) & 0xff; 29 int startG = (start >> 8) & 0xff; 30 int startB = start & 0xff; 31 32 int endA = (end >> 24) & 0xff; 33 int endR = (end >> 16) & 0xff; 34 int endG = (end >> 8) & 0xff; 35 int endB = end & 0xff; 36 37 return (int)((startA + (int)(fraction * (endA - startA))) << 24) 38 | (int)((startR + (int)(fraction * (endR - startR))) << 16) 39 | (int)((startG + (int)(fraction * (endG - startG))) << 8) 40 | (int)((startB + (int)(fraction * (endB - startB)))); 41} 42 43sp<DeferredLayerUpdater> TestUtils::createTextureLayerUpdater( 44 renderthread::RenderThread& renderThread, uint32_t width, uint32_t height, 45 std::function<void(Matrix4*)> transformSetupCallback) { 46 bool isOpaque = true; 47 bool forceFilter = true; 48 GLenum renderTarget = GL_TEXTURE_EXTERNAL_OES; 49 50 Layer* layer = LayerRenderer::createTextureLayer(renderThread.renderState()); 51 LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, forceFilter, 52 renderTarget, Matrix4::identity().data); 53 transformSetupCallback(&(layer->getTransform())); 54 55 sp<DeferredLayerUpdater> layerUpdater = new DeferredLayerUpdater(layer); 56 return layerUpdater; 57} 58 59void TestUtils::layoutTextUnscaled(const SkPaint& paint, const char* text, 60 std::vector<glyph_t>* outGlyphs, std::vector<float>* outPositions, 61 float* outTotalAdvance, Rect* outBounds) { 62 Rect bounds; 63 float totalAdvance = 0; 64 SkSurfaceProps surfaceProps(0, kUnknown_SkPixelGeometry); 65 SkAutoGlyphCacheNoGamma autoCache(paint, &surfaceProps, &SkMatrix::I()); 66 while (*text != '\0') { 67 SkUnichar unichar = SkUTF8_NextUnichar(&text); 68 glyph_t glyph = autoCache.getCache()->unicharToGlyph(unichar); 69 autoCache.getCache()->unicharToGlyph(unichar); 70 71 // push glyph and its relative position 72 outGlyphs->push_back(glyph); 73 outPositions->push_back(totalAdvance); 74 outPositions->push_back(0); 75 76 // compute bounds 77 SkGlyph skGlyph = autoCache.getCache()->getUnicharMetrics(unichar); 78 Rect glyphBounds(skGlyph.fWidth, skGlyph.fHeight); 79 glyphBounds.translate(totalAdvance + skGlyph.fLeft, skGlyph.fTop); 80 bounds.unionWith(glyphBounds); 81 82 // advance next character 83 SkScalar skWidth; 84 paint.getTextWidths(&glyph, sizeof(glyph), &skWidth, NULL); 85 totalAdvance += skWidth; 86 } 87 *outBounds = bounds; 88 *outTotalAdvance = totalAdvance; 89} 90 91 92void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text, 93 const SkPaint& paint, float x, float y) { 94 auto utf16 = asciiToUtf16(text); 95 canvas->drawText(utf16.get(), 0, strlen(text), strlen(text), x, y, 0, paint, nullptr); 96} 97 98void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text, 99 const SkPaint& paint, const SkPath& path) { 100 auto utf16 = asciiToUtf16(text); 101 canvas->drawTextOnPath(utf16.get(), strlen(text), 0, path, 0, 0, paint, nullptr); 102} 103 104void TestUtils::TestTask::run() { 105 // RenderState only valid once RenderThread is running, so queried here 106 RenderState& renderState = renderthread::RenderThread::getInstance().renderState(); 107 108 renderState.onGLContextCreated(); 109 rtCallback(renderthread::RenderThread::getInstance()); 110 renderState.flush(Caches::FlushMode::Full); 111 renderState.onGLContextDestroyed(); 112} 113 114std::unique_ptr<uint16_t[]> TestUtils::asciiToUtf16(const char* str) { 115 const int length = strlen(str); 116 std::unique_ptr<uint16_t[]> utf16(new uint16_t[length]); 117 for (int i = 0; i < length; i++) { 118 utf16.get()[i] = str[i]; 119 } 120 return utf16; 121} 122 123} /* namespace uirenderer */ 124} /* namespace android */ 125