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     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/gpu/effects/GrSimpleTextureEffect.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,80 @@
     1.4 +/*
     1.5 + * Copyright 2012 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "GrSimpleTextureEffect.h"
    1.12 +#include "gl/GrGLEffect.h"
    1.13 +#include "gl/GrGLSL.h"
    1.14 +#include "gl/GrGLTexture.h"
    1.15 +#include "GrTBackendEffectFactory.h"
    1.16 +#include "GrTexture.h"
    1.17 +
    1.18 +class GrGLSimpleTextureEffect : public GrGLEffect {
    1.19 +public:
    1.20 +    GrGLSimpleTextureEffect(const GrBackendEffectFactory& factory, const GrDrawEffect&)
    1.21 +        : INHERITED (factory) {
    1.22 +    }
    1.23 +
    1.24 +    virtual void emitCode(GrGLShaderBuilder* builder,
    1.25 +                          const GrDrawEffect& drawEffect,
    1.26 +                          EffectKey key,
    1.27 +                          const char* outputColor,
    1.28 +                          const char* inputColor,
    1.29 +                          const TransformedCoordsArray& coords,
    1.30 +                          const TextureSamplerArray& samplers) SK_OVERRIDE {
    1.31 +        builder->fsCodeAppendf("\t%s = ", outputColor);
    1.32 +        builder->fsAppendTextureLookupAndModulate(inputColor,
    1.33 +                                                  samplers[0],
    1.34 +                                                  coords[0].c_str(),
    1.35 +                                                  coords[0].type());
    1.36 +        builder->fsCodeAppend(";\n");
    1.37 +    }
    1.38 +
    1.39 +private:
    1.40 +    typedef GrGLEffect INHERITED;
    1.41 +};
    1.42 +
    1.43 +///////////////////////////////////////////////////////////////////////////////
    1.44 +
    1.45 +void GrSimpleTextureEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
    1.46 +    this->updateConstantColorComponentsForModulation(color, validFlags);
    1.47 +}
    1.48 +
    1.49 +const GrBackendEffectFactory& GrSimpleTextureEffect::getFactory() const {
    1.50 +    return GrTBackendEffectFactory<GrSimpleTextureEffect>::getInstance();
    1.51 +}
    1.52 +
    1.53 +///////////////////////////////////////////////////////////////////////////////
    1.54 +
    1.55 +GR_DEFINE_EFFECT_TEST(GrSimpleTextureEffect);
    1.56 +
    1.57 +GrEffectRef* GrSimpleTextureEffect::TestCreate(SkRandom* random,
    1.58 +                                               GrContext*,
    1.59 +                                               const GrDrawTargetCaps&,
    1.60 +                                               GrTexture* textures[]) {
    1.61 +    int texIdx = random->nextBool() ? GrEffectUnitTest::kSkiaPMTextureIdx :
    1.62 +                                      GrEffectUnitTest::kAlphaTextureIdx;
    1.63 +    static const SkShader::TileMode kTileModes[] = {
    1.64 +        SkShader::kClamp_TileMode,
    1.65 +        SkShader::kRepeat_TileMode,
    1.66 +        SkShader::kMirror_TileMode,
    1.67 +    };
    1.68 +    SkShader::TileMode tileModes[] = {
    1.69 +        kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))],
    1.70 +        kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))],
    1.71 +    };
    1.72 +    GrTextureParams params(tileModes, random->nextBool() ? GrTextureParams::kBilerp_FilterMode :
    1.73 +                                                           GrTextureParams::kNone_FilterMode);
    1.74 +
    1.75 +    static const GrCoordSet kCoordSets[] = {
    1.76 +        kLocal_GrCoordSet,
    1.77 +        kPosition_GrCoordSet
    1.78 +    };
    1.79 +    GrCoordSet coordSet = kCoordSets[random->nextULessThan(GR_ARRAY_COUNT(kCoordSets))];
    1.80 +
    1.81 +    const SkMatrix& matrix = GrEffectUnitTest::TestMatrix(random);
    1.82 +    return GrSimpleTextureEffect::Create(textures[texIdx], matrix, coordSet);
    1.83 +}