180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru/* 280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * Copyright 2012 The Android Open Source Project 380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * 480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * Use of this source code is governed by a BSD-style license that can be 580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * found in the LICENSE file. 680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru */ 780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkBitmap.h" 980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkMagnifierImageFilter.h" 1080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkColorPriv.h" 1180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkFlattenableBuffers.h" 1280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 1380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru//////////////////////////////////////////////////////////////////////////////// 1480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#if SK_SUPPORT_GPU 1580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "effects/GrSingleTextureEffect.h" 16363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger#include "gl/GrGLEffect.h" 17363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger#include "gl/GrGLEffectMatrix.h" 1880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "gl/GrGLSL.h" 1980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "gl/GrGLTexture.h" 20363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger#include "GrTBackendEffectFactory.h" 2180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 2280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruclass GrGLMagnifierEffect; 2380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 2480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruclass GrMagnifierEffect : public GrSingleTextureEffect { 2580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 2680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Querupublic: 27d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger static GrEffectRef* Create(GrTexture* texture, 28d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xOffset, 29d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yOffset, 30d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xZoom, 31d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yZoom, 32d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xInset, 33d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yInset) { 34d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger AutoEffectUnref effect(SkNEW_ARGS(GrMagnifierEffect, (texture, 35d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger xOffset, 36d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger yOffset, 37d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger xZoom, 38d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger yZoom, 39d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger xInset, 40d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger yInset))); 41d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger return CreateEffectRef(effect); 42d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger } 4380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 4480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru virtual ~GrMagnifierEffect() {}; 4580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 4680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru static const char* Name() { return "Magnifier"; } 4780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 48363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; 49d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE; 5080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 5180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float x_offset() const { return fXOffset; } 5280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float y_offset() const { return fYOffset; } 5380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float x_zoom() const { return fXZoom; } 5480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float y_zoom() const { return fYZoom; } 5580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float x_inset() const { return fXInset; } 5680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float y_inset() const { return fYInset; } 5780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 58363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger typedef GrGLMagnifierEffect GLEffect; 5980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 6080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruprivate: 61d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger GrMagnifierEffect(GrTexture* texture, 62d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xOffset, 63d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yOffset, 64d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xZoom, 65d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yZoom, 66d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float xInset, 67d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger float yInset) 68d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger : GrSingleTextureEffect(texture, MakeDivByTextureWHMatrix(texture)) 69d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fXOffset(xOffset) 70d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fYOffset(yOffset) 71d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fXZoom(xZoom) 72d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fYZoom(yZoom) 73d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fXInset(xInset) 74d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger , fYInset(yInset) {} 75d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger 76d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; 77d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger 78363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger GR_DECLARE_EFFECT_TEST; 7980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 8080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fXOffset; 8180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fYOffset; 8280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fXZoom; 8380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fYZoom; 8480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fXInset; 8580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float fYInset; 8680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 8780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru typedef GrSingleTextureEffect INHERITED; 8880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru}; 8980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 9080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru// For brevity 9180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Querutypedef GrGLUniformManager::UniformHandle UniformHandle; 9280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 93363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenbergerclass GrGLMagnifierEffect : public GrGLEffect { 9480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Querupublic: 95e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger GrGLMagnifierEffect(const GrBackendEffectFactory&, const GrDrawEffect&); 9680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 97363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger virtual void emitCode(GrGLShaderBuilder*, 98e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrDrawEffect&, 99363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger EffectKey, 100363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const char* outputColor, 101363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const char* inputColor, 102363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const TextureSamplerArray&) SK_OVERRIDE; 10380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 104e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE; 10580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 106e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); 10780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 10880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruprivate: 109363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger UniformHandle fOffsetVar; 110363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger UniformHandle fZoomVar; 111363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger UniformHandle fInsetVar; 11280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 113363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger GrGLEffectMatrix fEffectMatrix; 114363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger 115363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger typedef GrGLEffect INHERITED; 11680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru}; 11780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 118e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek SollenbergerGrGLMagnifierEffect::GrGLMagnifierEffect(const GrBackendEffectFactory& factory, 119e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrDrawEffect& drawEffect) 120363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger : INHERITED(factory) 12180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru , fOffsetVar(GrGLUniformManager::kInvalidUniformHandle) 12280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru , fZoomVar(GrGLUniformManager::kInvalidUniformHandle) 123e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger , fInsetVar(GrGLUniformManager::kInvalidUniformHandle) 124e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger , fEffectMatrix(drawEffect.castEffect<GrMagnifierEffect>().coordsType()) { 12580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 12680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 127363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenbergervoid GrGLMagnifierEffect::emitCode(GrGLShaderBuilder* builder, 128e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrDrawEffect&, 129363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger EffectKey key, 130363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const char* outputColor, 131363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const char* inputColor, 132363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const TextureSamplerArray& samplers) { 133363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger const char* coords; 134e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger fEffectMatrix.emitCodeMakeFSCoords2D(builder, key, &coords); 135363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger fOffsetVar = builder->addUniform( 13680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kFragment_ShaderType | 13780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kVertex_ShaderType, 13880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru kVec2f_GrSLType, "uOffset"); 139363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger fZoomVar = builder->addUniform( 14080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kFragment_ShaderType | 14180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kVertex_ShaderType, 14280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru kVec2f_GrSLType, "uZoom"); 143363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger fInsetVar = builder->addUniform( 14480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kFragment_ShaderType | 14580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru GrGLShaderBuilder::kVertex_ShaderType, 14680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru kVec2f_GrSLType, "uInset"); 14780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 148096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppendf("\t\tvec2 coord = %s;\n", coords); 149096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppendf("\t\tvec2 zoom_coord = %s + %s / %s;\n", 150096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->getUniformCStr(fOffsetVar), 151096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger coords, 152096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->getUniformCStr(fZoomVar)); 153096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 154096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\tvec2 delta = min(coord, vec2(1.0, 1.0) - coord);\n"); 155096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 156096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppendf("\t\tdelta = delta / %s;\n", builder->getUniformCStr(fInsetVar)); 157096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 158096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\tfloat weight = 0.0;\n"); 159096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\tif (delta.s < 2.0 && delta.t < 2.0) {\n"); 160096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tdelta = vec2(2.0, 2.0) - delta;\n"); 161096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tfloat dist = length(delta);\n"); 162096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tdist = max(2.0 - dist, 0.0);\n"); 163096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tweight = min(dist * dist, 1.0);\n"); 164096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t} else {\n"); 165096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tvec2 delta_squared = delta * delta;\n"); 166096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t\tweight = min(min(delta_squared.s, delta_squared.y), 1.0);\n"); 167096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\t}\n"); 168096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 169096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\tvec2 mix_coord = mix(coord, zoom_coord, weight);\n"); 170096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend("\t\tvec4 output_color = "); 171096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->appendTextureLookup(GrGLShaderBuilder::kFragment_ShaderType, samplers[0], "mix_coord"); 172096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend(";\n"); 173096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 174096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppendf("\t\t%s = output_color;", outputColor); 175096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger SkString modulate; 176096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); 177096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger builder->fsCodeAppend(modulate.c_str()); 17880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 17980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 18080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruvoid GrGLMagnifierEffect::setData(const GrGLUniformManager& uman, 181e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrDrawEffect& drawEffect) { 182e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrMagnifierEffect& zoom = drawEffect.castEffect<GrMagnifierEffect>(); 18380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uman.set2f(fOffsetVar, zoom.x_offset(), zoom.y_offset()); 18480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uman.set2f(fZoomVar, zoom.x_zoom(), zoom.y_zoom()); 18580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uman.set2f(fInsetVar, zoom.x_inset(), zoom.y_inset()); 186e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger fEffectMatrix.setData(uman, zoom.getMatrix(), drawEffect, zoom.texture(0)); 18780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 18880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 189e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek SollenbergerGrGLEffect::EffectKey GrGLMagnifierEffect::GenKey(const GrDrawEffect& drawEffect, 190e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrGLCaps&) { 191e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger const GrMagnifierEffect& zoom = drawEffect.castEffect<GrMagnifierEffect>(); 192363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger return GrGLEffectMatrix::GenKey(zoom.getMatrix(), 193e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger drawEffect, 194e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger zoom.coordsType(), 195363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger zoom.texture(0)); 19680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 19780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 19880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru///////////////////////////////////////////////////////////////////// 19980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 200363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek SollenbergerGR_DEFINE_EFFECT_TEST(GrMagnifierEffect); 20180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 202096defe64d408e54474fe19f418c95bf1a554fc7Derek SollenbergerGrEffectRef* GrMagnifierEffect::TestCreate(SkMWCRandom* random, 203d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger GrContext* context, 2047839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger const GrDrawTargetCaps&, 205d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger GrTexture** textures) { 20680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru const int kMaxWidth = 200; 20780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru const int kMaxHeight = 200; 20880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru const int kMaxInset = 20; 20980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uint32_t width = random->nextULessThan(kMaxWidth); 21080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uint32_t height = random->nextULessThan(kMaxHeight); 21180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uint32_t x = random->nextULessThan(kMaxWidth - width); 21280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru uint32_t y = random->nextULessThan(kMaxHeight - height); 21380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar inset = SkIntToScalar(random->nextULessThan(kMaxInset)); 21480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 2157839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger SkAutoTUnref<SkMagnifierImageFilter> filter( 21680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru new SkMagnifierImageFilter( 21780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), 21880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkIntToScalar(width), SkIntToScalar(height)), 21980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru inset)); 220d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger GrEffectRef* effect; 221e27eefc4844477cee5d32f51ab45ff62020cdb36Derek Sollenberger filter->asNewEffect(&effect, textures[0], SkIPoint::Make(0, 0)); 222363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger GrAssert(NULL != effect); 223363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger return effect; 22480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 22580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 22680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru/////////////////////////////////////////////////////////////////////////////// 22780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 228363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenbergerconst GrBackendEffectFactory& GrMagnifierEffect::getFactory() const { 229363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger return GrTBackendEffectFactory<GrMagnifierEffect>::getInstance(); 23080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 23180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 232d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenbergerbool GrMagnifierEffect::onIsEqual(const GrEffect& sBase) const { 233d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger const GrMagnifierEffect& s = CastEffect<GrMagnifierEffect>(sBase); 234d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger return (this->texture(0) == s.texture(0) && 235d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger this->fXOffset == s.fXOffset && 23680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->fYOffset == s.fYOffset && 23780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->fXZoom == s.fXZoom && 23880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->fYZoom == s.fYZoom && 23980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->fXInset == s.fXInset && 24080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->fYInset == s.fYInset); 24180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 24280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 243d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenbergervoid GrMagnifierEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const { 244d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger this->updateConstantColorComponentsForModulation(color, validFlags); 245d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger} 246d686ac77c2c485c4a3302eda9c1de597a6f8c568Derek Sollenberger 24780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#endif 24880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 24980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru//////////////////////////////////////////////////////////////////////////////// 25080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste QueruSkMagnifierImageFilter::SkMagnifierImageFilter(SkFlattenableReadBuffer& buffer) 25180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru : INHERITED(buffer) { 25280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float x = buffer.readScalar(); 25380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float y = buffer.readScalar(); 25480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float width = buffer.readScalar(); 25580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru float height = buffer.readScalar(); 25680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru fSrcRect = SkRect::MakeXYWH(x, y, width, height); 25780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru fInset = buffer.readScalar(); 25880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 25980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 26080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru// FIXME: implement single-input semantics 26180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste QueruSkMagnifierImageFilter::SkMagnifierImageFilter(SkRect srcRect, SkScalar inset) 26280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru : INHERITED(0), fSrcRect(srcRect), fInset(inset) { 26380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkASSERT(srcRect.x() >= 0 && srcRect.y() >= 0 && inset >= 0); 26480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 26580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 26680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#if SK_SUPPORT_GPU 267e27eefc4844477cee5d32f51ab45ff62020cdb36Derek Sollenbergerbool SkMagnifierImageFilter::asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkIPoint&) const { 268363e546ed626b6dbbc42f5db87b3594bc0b5944bDerek Sollenberger if (effect) { 2697839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger *effect = GrMagnifierEffect::Create(texture, 2707839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger fSrcRect.x() / texture->width(), 2717839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger fSrcRect.y() / texture->height(), 2727839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger texture->width() / fSrcRect.width(), 2737839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger texture->height() / fSrcRect.height(), 2747839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger fInset / texture->width(), 2757839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger fInset / texture->height()); 27680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 27780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru return true; 27880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 2797839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#endif 28080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 28180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruvoid SkMagnifierImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { 28280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru this->INHERITED::flatten(buffer); 28380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru buffer.writeScalar(fSrcRect.x()); 28480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru buffer.writeScalar(fSrcRect.y()); 28580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru buffer.writeScalar(fSrcRect.width()); 28680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru buffer.writeScalar(fSrcRect.height()); 28780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru buffer.writeScalar(fInset); 28880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 28980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 29080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Querubool SkMagnifierImageFilter::onFilterImage(Proxy*, const SkBitmap& src, 29180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru const SkMatrix&, SkBitmap* dst, 29280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkIPoint* offset) { 29380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkASSERT(src.config() == SkBitmap::kARGB_8888_Config); 29480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkASSERT(fSrcRect.width() < src.width()); 29580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkASSERT(fSrcRect.height() < src.height()); 29680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 29780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru if (src.config() != SkBitmap::kARGB_8888_Config) { 29880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru return false; 29980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 30080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 30180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkAutoLockPixels alp(src); 30280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkASSERT(src.getPixels()); 30380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru if (!src.getPixels() || src.width() <= 0 || src.height() <= 0) { 30480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru return false; 30580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 30680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 30780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar inv_inset = fInset > 0 ? SkScalarInvert(fInset) : SK_Scalar1; 30880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 30980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar inv_x_zoom = fSrcRect.width() / src.width(); 31080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar inv_y_zoom = fSrcRect.height() / src.height(); 31180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 31280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru dst->setConfig(src.config(), src.width(), src.height()); 31380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru dst->allocPixels(); 31480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkColor* sptr = src.getAddr32(0, 0); 31580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkColor* dptr = dst->getAddr32(0, 0); 31680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru int width = src.width(), height = src.height(); 31780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru for (int y = 0; y < height; ++y) { 31880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru for (int x = 0; x < width; ++x) { 31980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar x_dist = SkMin32(x, width - x - 1) * inv_inset; 32080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar y_dist = SkMin32(y, height - y - 1) * inv_inset; 32180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar weight = 0; 32280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 32380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru static const SkScalar kScalar2 = SkScalar(2); 32480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 32580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru // To create a smooth curve at the corners, we need to work on 32680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru // a square twice the size of the inset. 32780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru if (x_dist < kScalar2 && y_dist < kScalar2) { 32880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru x_dist = kScalar2 - x_dist; 32980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru y_dist = kScalar2 - y_dist; 33080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 33180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar dist = SkScalarSqrt(SkScalarSquare(x_dist) + 33280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalarSquare(y_dist)); 33380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru dist = SkMaxScalar(kScalar2 - dist, 0); 33480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru weight = SkMinScalar(SkScalarSquare(dist), SK_Scalar1); 33580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } else { 33680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar sqDist = SkMinScalar(SkScalarSquare(x_dist), 33780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalarSquare(y_dist)); 33880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru weight = SkMinScalar(sqDist, SK_Scalar1); 33980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 34080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 34180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar x_interp = SkScalarMul(weight, (fSrcRect.x() + x * inv_x_zoom)) + 34280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru (SK_Scalar1 - weight) * x; 34380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar y_interp = SkScalarMul(weight, (fSrcRect.y() + y * inv_y_zoom)) + 34480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru (SK_Scalar1 - weight) * y; 34580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 34680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru int x_val = SkMin32(SkScalarFloorToInt(x_interp), width - 1); 34780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru int y_val = SkMin32(SkScalarFloorToInt(y_interp), height - 1); 34880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 34980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru *dptr = sptr[y_val * width + x_val]; 35080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru dptr++; 35180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 35280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 35380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru return true; 35480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 355