| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| #include "TestUtils.h" |
| |
| #include "hwui/Paint.h" |
| #include "DeferredLayerUpdater.h" |
| #include "LayerRenderer.h" |
| |
| namespace android { |
| namespace uirenderer { |
| |
| SkColor TestUtils::interpolateColor(float fraction, SkColor start, SkColor end) { |
| int startA = (start >> 24) & 0xff; |
| int startR = (start >> 16) & 0xff; |
| int startG = (start >> 8) & 0xff; |
| int startB = start & 0xff; |
| |
| int endA = (end >> 24) & 0xff; |
| int endR = (end >> 16) & 0xff; |
| int endG = (end >> 8) & 0xff; |
| int endB = end & 0xff; |
| |
| return (int)((startA + (int)(fraction * (endA - startA))) << 24) |
| | (int)((startR + (int)(fraction * (endR - startR))) << 16) |
| | (int)((startG + (int)(fraction * (endG - startG))) << 8) |
| | (int)((startB + (int)(fraction * (endB - startB)))); |
| } |
| |
| sp<DeferredLayerUpdater> TestUtils::createTextureLayerUpdater( |
| renderthread::RenderThread& renderThread, uint32_t width, uint32_t height, |
| std::function<void(Matrix4*)> transformSetupCallback) { |
| bool isOpaque = true; |
| bool forceFilter = true; |
| GLenum renderTarget = GL_TEXTURE_EXTERNAL_OES; |
| |
| Layer* layer = LayerRenderer::createTextureLayer(renderThread.renderState()); |
| LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, forceFilter, |
| renderTarget, Matrix4::identity().data); |
| transformSetupCallback(&(layer->getTransform())); |
| |
| sp<DeferredLayerUpdater> layerUpdater = new DeferredLayerUpdater(layer); |
| return layerUpdater; |
| } |
| |
| void TestUtils::layoutTextUnscaled(const SkPaint& paint, const char* text, |
| std::vector<glyph_t>* outGlyphs, std::vector<float>* outPositions, |
| float* outTotalAdvance, Rect* outBounds) { |
| Rect bounds; |
| float totalAdvance = 0; |
| SkSurfaceProps surfaceProps(0, kUnknown_SkPixelGeometry); |
| SkAutoGlyphCacheNoGamma autoCache(paint, &surfaceProps, &SkMatrix::I()); |
| while (*text != '\0') { |
| SkUnichar unichar = SkUTF8_NextUnichar(&text); |
| glyph_t glyph = autoCache.getCache()->unicharToGlyph(unichar); |
| autoCache.getCache()->unicharToGlyph(unichar); |
| |
| // push glyph and its relative position |
| outGlyphs->push_back(glyph); |
| outPositions->push_back(totalAdvance); |
| outPositions->push_back(0); |
| |
| // compute bounds |
| SkGlyph skGlyph = autoCache.getCache()->getUnicharMetrics(unichar); |
| Rect glyphBounds(skGlyph.fWidth, skGlyph.fHeight); |
| glyphBounds.translate(totalAdvance + skGlyph.fLeft, skGlyph.fTop); |
| bounds.unionWith(glyphBounds); |
| |
| // advance next character |
| SkScalar skWidth; |
| paint.getTextWidths(&glyph, sizeof(glyph), &skWidth, NULL); |
| totalAdvance += skWidth; |
| } |
| *outBounds = bounds; |
| *outTotalAdvance = totalAdvance; |
| } |
| |
| |
| void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text, |
| const SkPaint& paint, float x, float y) { |
| auto utf16 = asciiToUtf16(text); |
| canvas->drawText(utf16.get(), 0, strlen(text), strlen(text), x, y, 0, paint, nullptr); |
| } |
| |
| void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text, |
| const SkPaint& paint, const SkPath& path) { |
| auto utf16 = asciiToUtf16(text); |
| canvas->drawTextOnPath(utf16.get(), strlen(text), 0, path, 0, 0, paint, nullptr); |
| } |
| |
| void TestUtils::TestTask::run() { |
| // RenderState only valid once RenderThread is running, so queried here |
| RenderState& renderState = renderthread::RenderThread::getInstance().renderState(); |
| |
| renderState.onGLContextCreated(); |
| rtCallback(renderthread::RenderThread::getInstance()); |
| renderState.flush(Caches::FlushMode::Full); |
| renderState.onGLContextDestroyed(); |
| } |
| |
| std::unique_ptr<uint16_t[]> TestUtils::asciiToUtf16(const char* str) { |
| const int length = strlen(str); |
| std::unique_ptr<uint16_t[]> utf16(new uint16_t[length]); |
| for (int i = 0; i < length; i++) { |
| utf16.get()[i] = str[i]; |
| } |
| return utf16; |
| } |
| |
| } /* namespace uirenderer */ |
| } /* namespace android */ |