15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright 2011 Google Inc. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (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) */ 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "SkCanvas.h" 9c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "SkGradientShader.h" 101e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "SkRectShaderImageFilter.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "SkShader.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "Test.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)DEF_TEST(ShaderImageFilter, reporter) { 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int w = 10, h = 10; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkRect r = SkRect::MakeWH(SkIntToScalar(w), SkIntToScalar(h)); // Make small 10x10 gradient 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SkBitmap filterResult, shaderResult; 1990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 2090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) filterResult.allocN32Pixels(w, h); 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkCanvas canvasFilter(filterResult); 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) canvasFilter.clear(0x00000000); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shaderResult.allocN32Pixels(w, h); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkCanvas canvasShader(shaderResult); 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) canvasShader.clear(0x00000000); 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 28c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SkPoint center = SkPoint::Make(SkIntToScalar(5), SkIntToScalar(5)); 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; 30c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; 3190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SkScalar radius = SkIntToScalar(5); 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Test using the image filter 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) { 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SkShader* s = SkGradientShader::CreateRadial( 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode); 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SkPaint paint; 3890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SkImageFilter::CropRect cr(r); 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) paint.setImageFilter(SkRectShaderImageFilter::Create(s, &cr))->unref(); 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) canvasFilter.drawRect(r, paint); 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) s->unref(); 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Test using the shader directly 4590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkShader* s = SkGradientShader::CreateRadial( 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) center, radius, colors, pos, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SkPaint paint; 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) paint.setShader(s)->unref(); 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) canvasShader.drawRect(r, paint); 5190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Assert that both paths yielded the same result 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (int y = 0; y < r.height(); ++y) { 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const SkPMColor* filterPtr = filterResult.getAddr32(0, y); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const SkPMColor* shaderPtr = shaderResult.getAddr32(0, y); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (int x = 0; x < r.width(); ++x, ++filterPtr, ++shaderPtr) { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) REPORTER_ASSERT(reporter, *filterPtr == *shaderPtr); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 607dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 61c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 62c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)