17839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger/* 27839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger * Copyright 2013 Google Inc. 37839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger * 47839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger * Use of this source code is governed by a BSD-style license that can be 57839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger * found in the LICENSE file. 67839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger */ 77839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 87839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "gm.h" 97839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "SkCanvas.h" 107839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 117839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerstatic void make_bm(SkBitmap* bm) { 127839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger bm->setConfig(SkBitmap::kARGB_8888_Config, 60, 60); 137839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger bm->allocPixels(); 147839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger bm->eraseColor(0); 157839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 167839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkCanvas canvas(*bm); 177839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkPaint paint; 187839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 197839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkPath path; 207839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger path.moveTo(6, 6); 217839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger path.lineTo(6, 54); 227839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger path.lineTo(30, 54); 237839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas.drawPath(path, paint); 247839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 257839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger paint.setStyle(SkPaint::kStroke_Style); 267839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas.drawRect(SkRect::MakeLTRB(0.5f, 0.5f, 59.5f, 59.5f), paint); 277839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger} 287839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 297839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// This creates a close, but imperfect concatenation of 307839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// scaling the image up by its dst-rect 317839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// scaling the image down by the matrix' scale 327839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// The bug was that for cases like this, we were incorrectly trying to take a 337839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// fast-path in the bitmapshader, but ended up drawing the last col of pixels 347839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// twice. The fix resulted in (a) not taking the fast-path, but (b) drawing 357839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// the image correctly. 367839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger// 377839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerstatic void test_bitmaprect(SkCanvas* canvas) { 387839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkBitmap bm; 397839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger make_bm(&bm); 407839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 417839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->drawBitmap(bm, 150, 45, NULL); 427839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 437839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkScalar scale = 0.472560018f; 447839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->save(); 457839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->scale(scale, scale); 467839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->drawBitmapRectToRect(bm, NULL, SkRect::MakeXYWH(100, 100, 128, 128), NULL); 477839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->restore(); 487839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 497839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->scale(-1, 1); 507839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger canvas->drawBitmap(bm, -310, 45, NULL); 517839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger} 527839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 537839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerclass BitmapRectTestGM : public skiagm::GM { 547839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerpublic: 557839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger BitmapRectTestGM() { 567839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 577839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger } 587839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 597839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerprotected: 607839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger virtual SkString onShortName() { 617839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger return SkString("bitmaprecttest"); 627839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger } 637839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 647839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger virtual SkISize onISize() { 657839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger return SkISize::Make(320, 240); 667839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger } 677839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 687839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 697839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger test_bitmaprect(canvas); 707839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger } 717839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 727839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenbergerprivate: 737839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger typedef skiagm::GM INHERITED; 747839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger}; 757839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 767839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger////////////////////////////////////////////////////////////////////////////// 777839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 787839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek SollenbergerDEF_GM( return new BitmapRectTestGM; ) 79