コード例 #1
0
ファイル: SkGr.cpp プロジェクト: huqingyu/skia
bool SkPaint2GrPaint(GrContext* context, GrRenderTarget* rt, const SkPaint& skPaint,
                     const SkMatrix& viewM, bool constantColor, GrPaint* grPaint) {
    SkShader* shader = skPaint.getShader();
    if (NULL == shader) {
        return SkPaint2GrPaintNoShader(context, rt, skPaint, SkColor2GrColor(skPaint.getColor()),
                                       constantColor, grPaint);
    }

    GrColor paintColor = SkColor2GrColor(skPaint.getColor());

    // Start a new block here in order to preserve our context state after calling
    // asFragmentProcessor(). Since these calls get passed back to the client, we don't really
    // want them messing around with the context.
    {
        // Allow the shader to modify paintColor and also create an effect to be installed as
        // the first color effect on the GrPaint.
        GrFragmentProcessor* fp = NULL;
        if (!shader->asFragmentProcessor(context, skPaint, viewM, NULL, &paintColor,
                                         grPaint->getProcessorDataManager(), &fp)) {
            return false;
        }
        if (fp) {
            grPaint->addColorProcessor(fp)->unref();
            constantColor = false;
        }
    }

    // The grcolor is automatically set when calling asFragmentProcessor.
    // If the shader can be seen as an effect it returns true and adds its effect to the grpaint.
    return SkPaint2GrPaintNoShader(context, rt, skPaint, paintColor, constantColor, grPaint);
}
コード例 #2
0
ファイル: SkShader.cpp プロジェクト: Adenilson/skia
bool SkColorShader::asNewEffect(GrContext* context, const SkPaint& paint,
                                const SkMatrix* localMatrix, GrColor* grColor,
                                GrEffectRef** grEffect) const {
    *grEffect = NULL;
    SkColor skColor = fColor;
    U8CPU newA = SkMulDiv255Round(SkColorGetA(fColor), paint.getAlpha());
    *grColor = SkColor2GrColor(SkColorSetA(skColor, newA));
    return true;
}
コード例 #3
0
bool SkBitmapProcShader::asFragmentProcessor(GrContext* context, const SkPaint& paint,
                                             const SkMatrix& viewM,
                                             const SkMatrix* localMatrix, GrColor* paintColor,
                                             GrProcessorDataManager* procDataManager,
                                             GrFragmentProcessor** fp) const {
    SkMatrix matrix;
    matrix.setIDiv(fRawBitmap.width(), fRawBitmap.height());

    SkMatrix lmInverse;
    if (!this->getLocalMatrix().invert(&lmInverse)) {
        return false;
    }
    if (localMatrix) {
        SkMatrix inv;
        if (!localMatrix->invert(&inv)) {
            return false;
        }
        lmInverse.postConcat(inv);
    }
    matrix.preConcat(lmInverse);

    SkShader::TileMode tm[] = {
        (TileMode)fTileModeX,
        (TileMode)fTileModeY,
    };

    // Must set wrap and filter on the sampler before requesting a texture. In two places below
    // we check the matrix scale factors to determine how to interpret the filter quality setting.
    // This completely ignores the complexity of the drawVertices case where explicit local coords
    // are provided by the caller.
    bool doBicubic;
    GrTextureParams::FilterMode textureFilterMode =
            GrSkFilterQualityToGrFilterMode(paint.getFilterQuality(), viewM, this->getLocalMatrix(),
                                            &doBicubic);
    GrTextureParams params(tm, textureFilterMode);
    SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, fRawBitmap, &params));

    if (!texture) {
        SkErrorInternals::SetError( kInternalError_SkError,
                                    "Couldn't convert bitmap to texture.");
        return false;
    }

    *paintColor = (kAlpha_8_SkColorType == fRawBitmap.colorType()) ?
                                                SkColor2GrColor(paint.getColor()) :
                                                SkColor2GrColorJustAlpha(paint.getColor());

    if (doBicubic) {
        *fp = GrBicubicEffect::Create(procDataManager, texture, matrix, tm);
    } else {
        *fp = GrSimpleTextureEffect::Create(procDataManager, texture, matrix, params);
    }

    return true;
}
コード例 #4
0
ファイル: SkColorFilters.cpp プロジェクト: Ashu17/blackberry
bool SkModeColorFilter::asFragmentProcessors(GrContext*,
                                             SkTDArray<GrFragmentProcessor*>* array) const {
    if (SkXfermode::kDst_Mode != fMode) {
        GrFragmentProcessor* frag = ModeColorFilterEffect::Create(SkColor2GrColor(fColor), fMode);
        if (frag) {
            if (array) {
                *array->append() = frag;
            }
            return true;
        }
    }
    return false;
}
コード例 #5
0
ファイル: SkGr.cpp プロジェクト: tiftof/skia
bool SkPaint2GrPaint(GrContext* context, GrRenderTarget* rt, const SkPaint& skPaint,
                     const SkMatrix& viewM, bool constantColor, GrPaint* grPaint) {
    SkShader* shader = skPaint.getShader();
    if (nullptr == shader) {
        return SkPaint2GrPaintNoShader(context, rt, skPaint, SkColor2GrColor(skPaint.getColor()),
                                       constantColor, grPaint);
    }

    GrColor paintColor = SkColor2GrColor(skPaint.getColor());

    const GrFragmentProcessor* fp = shader->asFragmentProcessor(context, viewM, NULL,
        skPaint.getFilterQuality(), grPaint->getProcessorDataManager());
    if (!fp) {
        return false;
    }
    grPaint->addColorFragmentProcessor(fp)->unref();
    constantColor = false;

    // The grcolor is automatically set when calling asFragmentProcessor.
    // If the shader can be seen as an effect it returns true and adds its effect to the grpaint.
    return SkPaint2GrPaintNoShader(context, rt, skPaint, paintColor, constantColor, grPaint);
}
コード例 #6
0
bool SkModeColorFilter::asFragmentProcessors(GrContext*, GrProcessorDataManager*,
                                             SkTDArray<GrFragmentProcessor*>* array) const {
    if (SkXfermode::kDst_Mode != fMode) {
        GrFragmentProcessor* frag = ModeColorFilterEffect::Create(SkColor2GrColor(fColor), fMode);
        if (frag) {
            if (array) {
                *array->append() = frag;
            } else {
                frag->unref();
                SkDEBUGCODE(frag = nullptr;)
            }
            return true;
        }
    }
コード例 #7
0
static void test_getConstantColorComponents(skiatest::Reporter* reporter, GrContext* grContext) {
    struct GetConstantComponentTestCase {
        // "Shape drawn with"
        uint32_t inputComponents; // "rgb of", "red of", "alpha of", ...
        GrColor inputColor;       // "[color]"

        SkColor filterColor;      // "with filter color [color]"
        SkXfermode::Mode filterMode; // "in mode [mode]"

        // "produces"
        uint32_t outputComponents; // "rgb of", "red of", "alpha of", ...
        GrColor outputColor;       // "[color]"
    };

    // Shorthands.
    enum {
        kR = kR_GrColorComponentFlag,
        kG = kG_GrColorComponentFlag,
        kB = kB_GrColorComponentFlag,
        kA = kA_GrColorComponentFlag,
        kRGB = kRGB_GrColorComponentFlags,
        kRGBA = kRGBA_GrColorComponentFlags
    };

    // Note: below, SkColors are non-premultiplied, where as GrColors are premultiplied.

    const SkColor c1 = SkColorSetARGB(200, 200, 200, 200);
    const SkColor c2 = SkColorSetARGB(60, 60, 60, 60);
    const GrColor gr_c1 = SkColor2GrColor(c1);
    const GrColor gr_c2 = SkColor2GrColor(c2);

    const GrColor gr_black = GrColorPackA4(0);
    const GrColor gr_white = GrColorPackA4(255);
    const GrColor gr_whiteTrans = GrColorPackA4(128);

    GetConstantComponentTestCase filterTests[] = {
        // A color filtered with Clear produces black.
        { kRGBA, gr_white, SK_ColorBLACK, SkXfermode::kClear_Mode, kRGBA, gr_black },
        { kRGBA, gr_c1,    SK_ColorWHITE, SkXfermode::kClear_Mode, kRGBA, gr_black },
        { kR,    gr_white, c1,            SkXfermode::kClear_Mode, kRGBA, gr_black },

        // A color filtered with a color in mode Src, produces the filter color.
        { kRGBA, gr_c2, c1, SkXfermode::kSrc_Mode, kRGBA, gr_c1 },
        { kA,    gr_c1, c1, SkXfermode::kSrc_Mode, kRGBA, gr_c1 },

        // A color filtered with SrcOver produces a color.
        { kRGBA, gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kRGBA, GrColorPackRGBA(164, 164, 164, 192)},
        // An unknown color with known alpha filtered with SrcOver produces an unknown color with known alpha.
        { kA   , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kA   , GrColorPackRGBA(0, 0, 0, 192)},
        // A color with unknown alpha filtered with SrcOver produces a color with unknown alpha.
        { kRGB , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kRGB, GrColorPackRGBA(164, 164, 164, 0)},

        // A color filtered with DstOver produces a color.
        { kRGBA, gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, kRGBA, GrColorPackRGBA(178, 178, 178, 192)},
        // An unknown color with known alpha filtered with DstOver produces an unknown color with known alpha.
        { kA   , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, kA   , GrColorPackRGBA(0, 0, 0, 192)},
        // A color with unknown alpha filtered with DstOver produces an unknown color.
        { kRGB , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, 0    , gr_black},

        // An unknown color with known alpha and red component filtered with Multiply produces an unknown color with known red and alpha.
        { kR|kA , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kModulate_Mode, kR|kA, GrColorPackRGBA(50, 0, 0, 64) }
    };

    GrPaint paint;
    for (size_t i = 0; i < SK_ARRAY_COUNT(filterTests); ++i) {
        const GetConstantComponentTestCase& test = filterTests[i];
        SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(test.filterColor, test.filterMode));
        SkTDArray<const GrFragmentProcessor*> array;
        bool hasFrag = cf->asFragmentProcessors(grContext, paint.getProcessorDataManager(), &array);
        REPORTER_ASSERT(reporter, hasFrag);
        REPORTER_ASSERT(reporter, 1 == array.count());
        GrInvariantOutput inout(test.inputColor,
                                static_cast<GrColorComponentFlags>(test.inputComponents),
                                false);
        array[0]->computeInvariantOutput(&inout);

        REPORTER_ASSERT(reporter, filterColor(inout.color(), inout.validFlags()) == test.outputColor);
        REPORTER_ASSERT(reporter, test.outputComponents == inout.validFlags());
        array[0]->unref();
    }
}
コード例 #8
0
ファイル: SkGr.cpp プロジェクト: huqingyu/skia
bool SkPaint2GrPaintNoShader(GrContext* context, GrRenderTarget* rt, const SkPaint& skPaint,
                             GrColor paintColor, bool constantColor, GrPaint* grPaint) {

    grPaint->setDither(skPaint.isDither());
    grPaint->setAntiAlias(skPaint.isAntiAlias());

    SkXfermode* mode = skPaint.getXfermode();
    GrXPFactory* xpFactory = NULL;
    if (!SkXfermode::AsXPFactory(mode, &xpFactory)) {
        // Fall back to src-over
        // return false here?
        xpFactory = GrPorterDuffXPFactory::Create(SkXfermode::kSrcOver_Mode);
    }
    SkASSERT(xpFactory);
    grPaint->setXPFactory(xpFactory)->unref();

    //set the color of the paint to the one of the parameter
    grPaint->setColor(paintColor);

    SkColorFilter* colorFilter = skPaint.getColorFilter();
    if (colorFilter) {
        // if the source color is a constant then apply the filter here once rather than per pixel
        // in a shader.
        if (constantColor) {
            SkColor filtered = colorFilter->filterColor(skPaint.getColor());
            grPaint->setColor(SkColor2GrColor(filtered));
        } else {
            SkTDArray<GrFragmentProcessor*> array;
            // return false if failed?
            if (colorFilter->asFragmentProcessors(context, grPaint->getProcessorDataManager(),
                                                  &array)) {
                for (int i = 0; i < array.count(); ++i) {
                    grPaint->addColorProcessor(array[i]);
                    array[i]->unref();
                }
            }
        }
    }

#ifndef SK_IGNORE_GPU_DITHER
    // If the dither flag is set, then we need to see if the underlying context
    // supports it. If not, then install a dither effect.
    if (skPaint.isDither() && grPaint->numColorStages() > 0) {
        // What are we rendering into?
        SkASSERT(rt);

        // Suspect the dithering flag has no effect on these configs, otherwise
        // fall back on setting the appropriate state.
        if (GrPixelConfigIs8888(rt->config()) ||
            GrPixelConfigIs8888(rt->config())) {
            // The dither flag is set and the target is likely
            // not going to be dithered by the GPU.
            SkAutoTUnref<GrFragmentProcessor> fp(GrDitherEffect::Create());
            if (fp.get()) {
                grPaint->addColorProcessor(fp);
                grPaint->setDither(false);
            }
        }
    }
#endif
    return true;
}
コード例 #9
0
bool SkBitmapProcShader::asNewEffect(GrContext* context, const SkPaint& paint,
                                     const SkMatrix* localMatrix, GrColor* grColor,
                                     GrEffectRef** grEffect) const {
    SkMatrix matrix;
    matrix.setIDiv(fRawBitmap.width(), fRawBitmap.height());

    SkMatrix lmInverse;
    if (!this->getLocalMatrix().invert(&lmInverse)) {
        return false;
    }
    if (localMatrix) {
        SkMatrix inv;
        if (!localMatrix->invert(&inv)) {
            return false;
        }
        lmInverse.postConcat(inv);
    }
    matrix.preConcat(lmInverse);

    SkShader::TileMode tm[] = {
        (TileMode)fTileModeX,
        (TileMode)fTileModeY,
    };

    // Must set wrap and filter on the sampler before requesting a texture. In two places below
    // we check the matrix scale factors to determine how to interpret the filter quality setting.
    // This completely ignores the complexity of the drawVertices case where explicit local coords
    // are provided by the caller.
    bool useBicubic = false;
    GrTextureParams::FilterMode textureFilterMode;
    switch(paint.getFilterLevel()) {
        case SkPaint::kNone_FilterLevel:
            textureFilterMode = GrTextureParams::kNone_FilterMode;
            break;
        case SkPaint::kLow_FilterLevel:
            textureFilterMode = GrTextureParams::kBilerp_FilterMode;
            break;
        case SkPaint::kMedium_FilterLevel: {
            SkMatrix matrix;
            matrix.setConcat(context->getMatrix(), this->getLocalMatrix());
            if (matrix.getMinScale() < SK_Scalar1) {
                textureFilterMode = GrTextureParams::kMipMap_FilterMode;
            } else {
                // Don't trigger MIP level generation unnecessarily.
                textureFilterMode = GrTextureParams::kBilerp_FilterMode;
            }
            break;
        }
        case SkPaint::kHigh_FilterLevel: {
            SkMatrix matrix;
            matrix.setConcat(context->getMatrix(), this->getLocalMatrix());
            useBicubic = GrBicubicEffect::ShouldUseBicubic(matrix, &textureFilterMode);
            break;
        }
        default:
            SkErrorInternals::SetError( kInvalidPaint_SkError,
                                        "Sorry, I don't understand the filtering "
                                        "mode you asked for.  Falling back to "
                                        "MIPMaps.");
            textureFilterMode = GrTextureParams::kMipMap_FilterMode;
            break;

    }
    GrTextureParams params(tm, textureFilterMode);
    GrTexture* texture = GrLockAndRefCachedBitmapTexture(context, fRawBitmap, &params);

    if (NULL == texture) {
        SkErrorInternals::SetError( kInternalError_SkError,
                                    "Couldn't convert bitmap to texture.");
        return false;
    }
    
    *grColor = (kAlpha_8_SkColorType == fRawBitmap.colorType()) ? SkColor2GrColor(paint.getColor())
                                        : SkColor2GrColorJustAlpha(paint.getColor());

    if (useBicubic) {
        *grEffect = GrBicubicEffect::Create(texture, matrix, tm);
    } else {
        *grEffect = GrSimpleTextureEffect::Create(texture, matrix, params);
    }
    GrUnlockAndUnrefCachedBitmapTexture(texture);

    return true;
}
コード例 #10
0
ファイル: GpuColorFilterTest.cpp プロジェクト: Adenilson/skia
static void test_getConstantColorComponents(skiatest::Reporter* reporter, GrContext* grContext) {
    struct GetConstantComponentTestCase {
        // "Shape drawn with"
        uint32_t inputComponents; // "rgb of", "red of", "alpha of", ...
        GrColor inputColor;       // "[color]"

        SkColor filterColor;      // "with filter color [color]"
        SkXfermode::Mode filterMode; // "in mode [mode]"

        // "produces"
        uint32_t outputComponents; // "rgb of", "red of", "alpha of", ...
        GrColor outputColor;       // "[color]"
    };

    // Shorthands.
    enum {
        kR = kR_GrColorComponentFlag,
        kG = kG_GrColorComponentFlag,
        kB = kB_GrColorComponentFlag,
        kA = kA_GrColorComponentFlag,
        kRGB = kRGB_GrColorComponentFlags,
        kRGBA = kRGBA_GrColorComponentFlags
    };

    // Note: below, SkColors are non-premultiplied, where as GrColors are premultiplied.

    const SkColor c1 = SkColorSetARGB(200, 200, 200, 200);
    const SkColor c2 = SkColorSetARGB(60, 60, 60, 60);
    const GrColor gr_c1 = SkColor2GrColor(c1);
    const GrColor gr_c2 = SkColor2GrColor(c2);

    const GrColor gr_black = GrColorPackRGBA(0, 0, 0, 0);
    const GrColor gr_white = GrColorPackRGBA(255, 255, 255, 255);
    const GrColor gr_whiteTrans = GrColorPackRGBA(128, 128, 128, 128);

    GetConstantComponentTestCase filterTests[] = {
        // A color filtered with Clear produces black.
        { kRGBA, gr_white, SK_ColorBLACK, SkXfermode::kClear_Mode, kRGBA, gr_black },
        { kRGBA, gr_c1,    SK_ColorWHITE, SkXfermode::kClear_Mode, kRGBA, gr_black },
        { kR,    gr_white, c1,            SkXfermode::kClear_Mode, kRGBA, gr_black },

        // A color filtered with a color in mode Src, produces the filter color.
        { kRGBA, gr_c2, c1, SkXfermode::kSrc_Mode, kRGBA, gr_c1 },
        { kA,    gr_c1, c1, SkXfermode::kSrc_Mode, kRGBA, gr_c1 },

        // A color filtered with SrcOver produces a color.
        { kRGBA, gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kRGBA, GrColorPackRGBA(164, 164, 164, 192)},
        // An unknown color with known alpha filtered with SrcOver produces an unknown color with known alpha.
        { kA   , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kA   , GrColorPackRGBA(0, 0, 0, 192)},
        // A color with unknown alpha filtered with SrcOver produces a color with unknown alpha.
        { kRGB , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kSrcOver_Mode, kRGB, GrColorPackRGBA(164, 164, 164, 0)},

        // A color filtered with DstOver produces a color.
        { kRGBA, gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, kRGBA, GrColorPackRGBA(178, 178, 178, 192)},
        // An unknown color with known alpha filtered with DstOver produces an unknown color with known alpha.
        { kA   , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, kA   , GrColorPackRGBA(0, 0, 0, 192)},
        // A color with unknown alpha filtered with DstOver produces an unknown color.
        { kRGB , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kDstOver_Mode, 0    , gr_black},

        // An unknown color with known alpha and red component filtered with Multiply produces an unknown color with known red and alpha.
        { kR|kA , gr_whiteTrans, SkColorSetARGB(128, 200, 200, 200), SkXfermode::kModulate_Mode, kR|kA, GrColorPackRGBA(50, 0, 0, 64) }
    };

    for (size_t i = 0; i < SK_ARRAY_COUNT(filterTests); ++i) {
        const GetConstantComponentTestCase& test = filterTests[i];
        SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(test.filterColor, test.filterMode));
        SkAutoTUnref<GrEffectRef> grEffect(cf->asNewEffect(grContext));
        GrColor color = test.inputColor;
        uint32_t components = test.inputComponents;
        grEffect->get()->getConstantColorComponents(&color, &components);

        REPORTER_ASSERT(reporter, filterColor(color, components) == test.outputColor);
        REPORTER_ASSERT(reporter, test.outputComponents == components);
    }
}