示例#1
0
static Sk4f lcd16_to_unit_4f(uint16_t rgb) {
#ifdef SK_PMCOLOR_IS_RGBA
    Sk4i rgbi = Sk4i(SkGetPackedR16(rgb), SkGetPackedG16(rgb), SkGetPackedB16(rgb), 0);
#else
    Sk4i rgbi = Sk4i(SkGetPackedB16(rgb), SkGetPackedG16(rgb), SkGetPackedR16(rgb), 0);
#endif
    return SkNx_cast<float>(rgbi) * Sk4f(1.0f/31, 1.0f/63, 1.0f/31, 0);
}
示例#2
0
static uint16_t lighten_modeproc16_255(SkPMColor src, uint16_t dst) {
    SkASSERT(require_255(src));
    unsigned r = SkMax32(SkPacked32ToR16(src), SkGetPackedR16(dst));
    unsigned g = SkMax32(SkPacked32ToG16(src), SkGetPackedG16(dst));
    unsigned b = SkMax32(SkPacked32ToB16(src), SkGetPackedB16(dst));
    return SkPackRGB16(r, g, b);
}
示例#3
0
static uint16_t srcatop_modeproc16(SkPMColor src, uint16_t dst) {
    unsigned isa = 255 - SkGetPackedA32(src);
    
    return SkPackRGB16(
           SkPacked32ToR16(src) + SkAlphaMulAlpha(SkGetPackedR16(dst), isa),
           SkPacked32ToG16(src) + SkAlphaMulAlpha(SkGetPackedG16(dst), isa),
           SkPacked32ToB16(src) + SkAlphaMulAlpha(SkGetPackedB16(dst), isa));
}
示例#4
0
static inline U16CPU SkBlend3216(SkPMColor src, U16CPU dst, unsigned scale) {
    SkASSERT(scale <= 32);
    scale <<= 3;

    return SkPackRGB16(SkAlphaBlend(SkPacked32ToR16(src), SkGetPackedR16(dst), scale),
        SkAlphaBlend(SkPacked32ToG16(src), SkGetPackedG16(dst), scale),
        SkAlphaBlend(SkPacked32ToB16(src), SkGetPackedB16(dst), scale));
}
示例#5
0
static inline void D16_S32A_Blend_Pixel_helper(uint16_t* dst, SkPMColor sc,
                                               unsigned src_scale) {
    uint16_t dc = *dst;
    unsigned sa = SkGetPackedA32(sc);
    unsigned dr, dg, db;

    if (255 == sa) {
        dr = SkAlphaBlend(SkPacked32ToR16(sc), SkGetPackedR16(dc), src_scale);
        dg = SkAlphaBlend(SkPacked32ToG16(sc), SkGetPackedG16(dc), src_scale);
        db = SkAlphaBlend(SkPacked32ToB16(sc), SkGetPackedB16(dc), src_scale);
    } else {
        unsigned dst_scale = 255 - SkAlphaMul(sa, src_scale);
        dr = (SkPacked32ToR16(sc) * src_scale + SkGetPackedR16(dc) * dst_scale) >> 8;
        dg = (SkPacked32ToG16(sc) * src_scale + SkGetPackedG16(dc) * dst_scale) >> 8;
        db = (SkPacked32ToB16(sc) * src_scale + SkGetPackedB16(dc) * dst_scale) >> 8;
    }
    *dst = SkPackRGB16(dr, dg, db);
}
示例#6
0
// returns 0..31
static unsigned color_dist16(uint16_t c, unsigned r, unsigned g, unsigned b) {
    SkASSERT(r <= SK_R16_MASK);
    SkASSERT(g <= SK_G16_MASK);
    SkASSERT(b <= SK_B16_MASK);

    unsigned dr = SkAbs32(SkGetPackedR16(c) - r);
    unsigned dg = SkAbs32(SkGetPackedG16(c) - g) >> (SK_G16_BITS - SK_R16_BITS);
    unsigned db = SkAbs32(SkGetPackedB16(c) - b);

    return SkMax32(dr, SkMax32(dg, db));
}
示例#7
0
static void rgb2yuv_16(uint8_t dst[], U16CPU c) {
    int r = SkGetPackedR16(c);
    int g = SkGetPackedG16(c);
    int b = SkGetPackedB16(c);

    int  y = ( 2*CYR*r + CYG*g + 2*CYB*b ) >> (CSHIFT - 2);
    int  u = ( 2*CUR*r + CUG*g + 2*CUB*b ) >> (CSHIFT - 2);
    int  v = ( 2*CVR*r + CVG*g + 2*CVB*b ) >> (CSHIFT - 2);

    dst[0] = SkToU8(y);
    dst[1] = SkToU8(u + 128);
    dst[2] = SkToU8(v + 128);
}
示例#8
0
static inline bool S32A_D565_Blend_1(SkPMColor sc, uint16_t dc, U8CPU alpha) {
    unsigned dst_scale = 255 - SkMulDiv255Round(SkGetPackedA32(sc), alpha);
    unsigned dr = (SkMulS16(SkGetPackedR32(sc), alpha) >> 3) + SkMulS16(SkGetPackedR16(dc), dst_scale);
    unsigned dg = (SkMulS16(SkGetPackedG32(sc), alpha) >> 2) + SkMulS16(SkGetPackedG16(dc), dst_scale);

    unsigned rr = SkDiv255Round(dr);
    unsigned rg = SkDiv255Round(dg);

    if (rr <= 31 && rg <= 63) {
        return true;
    }
    return false;
}
示例#9
0
static inline bool S32A_D565_Blend_2(SkPMColor sc, uint16_t dc, U8CPU alpha) {
    unsigned dst_scale = 255*255 - SkGetPackedA32(sc) * alpha;
    alpha *= 255;
    unsigned dr = (SkGetPackedR32(sc) >> 3) * alpha + SkGetPackedR16(dc) * dst_scale;
    unsigned dg = (SkGetPackedG32(sc) >> 2) * alpha + SkGetPackedG16(dc) * dst_scale;

    unsigned rr = SkDiv65025Round(dr);
    unsigned rg = SkDiv65025Round(dg);

    if (rr <= 31 && rg <= 63) {
        return true;
    }
    return false;
}
示例#10
0
static SkStream* extract_rgb565_image(const SkBitmap& bitmap,
                                      const SkIRect& srcRect) {
    SkStream* stream = SkNEW_ARGS(SkMemoryStream,
                                  (get_uncompressed_size(bitmap,
                                                     srcRect)));
    uint8_t* dst = (uint8_t*)stream->getMemoryBase();
    for (int y = srcRect.fTop; y < srcRect.fBottom; y++) {
        uint16_t* src = bitmap.getAddr16(0, y);
        for (int x = srcRect.fLeft; x < srcRect.fRight; x++) {
            dst[0] = SkGetPackedR16(src[x]);
            dst[1] = SkGetPackedG16(src[x]);
            dst[2] = SkGetPackedB16(src[x]);
            dst += 3;
        }
    }
    return stream;
}
示例#11
0
static inline bool S32A_D565_Blend_02(SkPMColor sc, uint16_t dc, U8CPU alpha) {
    unsigned dst_scale = 255 - SkMulDiv255Round(SkGetPackedA32(sc), alpha);
    unsigned dr = SkMulS16(SkGetPackedR32(sc), alpha) + SkMulS16(GetPackedR16As32(dc), dst_scale);
    unsigned dg = SkMulS16(SkGetPackedG32(sc), alpha) + SkMulS16(GetPackedG16As32(dc), dst_scale);
    unsigned db = SkMulS16(SkGetPackedB32(sc), alpha) + SkMulS16(GetPackedB16As32(dc), dst_scale);
    int rc = SkPack888ToRGB16(SkDiv255Round(dr),
                              SkDiv255Round(dg),
                              SkDiv255Round(db));

    unsigned rr = SkGetPackedR16(rc);
    unsigned rg = SkGetPackedG16(rc);

    if (rr <= 31 && rg <= 63) {
        return true;
    }
    return false;
}
示例#12
0
static void unpack_565(uint16_t pixel, unsigned* r, unsigned* g, unsigned* b) {
    *r = SkGetPackedR16(pixel);
    *g = SkGetPackedG16(pixel);
    *b = SkGetPackedB16(pixel);
}