15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright 2011 Google Inc. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 4c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) * Use of this source code is governed by a BSD-style license that can be 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * found in the LICENSE file. 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "gm.h" 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "SkBitmap.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "SkCanvas.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "SkDevice.h" 12868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "SkString.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "SkSurface.h" 147dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace skiagm { 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void create_bitmap(SkBitmap* bitmap) { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int W = 100; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int H = 100; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitmap->allocN32Pixels(W, H); 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkCanvas canvas(*bitmap); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas.drawColor(SK_ColorRED); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) paint.setColor(SK_ColorBLUE); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas.drawCircle(SkIntToScalar(W)/2, SkIntToScalar(H)/2, SkIntToScalar(W)/2, paint); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ExtractBitmapGM : public GM { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExtractBitmapGM() {} 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)protected: 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // overrides from SkEventSink 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SkString onShortName() SK_OVERRIDE { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SkString("extractbitmap"); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SkISize onISize() SK_OVERRIDE { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SkISize::Make(600, 600); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkBitmap bitmap; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) create_bitmap(&bitmap); 46a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int x = bitmap.width() / 2; 47a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) int y = bitmap.height() / 2; 48a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->drawBitmap(bitmap, 0, 0); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Do some subset drawing. This will test that an SkGPipe properly 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // handles the case where bitmaps share a pixelref 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw the bottom right fourth of the bitmap over the top left 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkBitmap subset; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitmap.extractSubset(&subset, SkIRect::MakeXYWH(x, y, x, y)); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->drawBitmap(subset, 0, 0); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw the top left corner over the bottom right 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitmap.extractSubset(&subset, SkIRect::MakeWH(x, y)); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->drawBitmap(subset, SkIntToScalar(x), SkIntToScalar(y)); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Draw a subset which has the same height and pixelref offset but a 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // different width 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitmap.extractSubset(&subset, SkIRect::MakeWH(x, bitmap.height())); 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SkAutoCanvasRestore autoRestore(canvas, true); 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) canvas->translate(0, SkIntToScalar(bitmap.height() + 20)); 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) canvas->drawBitmap(subset, 0, 0); 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Now draw a subet which has the same width and pixelref offset but 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // a different height 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitmap.extractSubset(&subset, SkIRect::MakeWH(bitmap.height(), y)); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvas->translate(0, SkIntToScalar(bitmap.height() + 20)); 73ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch canvas->drawBitmap(subset, 0, 0); 74ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch } 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)private: 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef GM INHERITED; 79ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch}; 80ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)////////////////////////////////////////////////////////////////////////////// 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GM* MyFactory(void*) { return new ExtractBitmapGM; } 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GMRegistry reg(MyFactory); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)