include/core/SkColorPriv.h File Reference

#include "SkColor.h"
#include "SkMath.h"
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Defines

#define SkAlphaMul(value, alpha256)   (SkMulS16(value, alpha256) >> 8)
#define SK_R16_BITS   5
#define SK_G16_BITS   6
#define SK_B16_BITS   5
#define SK_R16_SHIFT   (SK_B16_BITS + SK_G16_BITS)
#define SK_G16_SHIFT   (SK_B16_BITS)
#define SK_B16_SHIFT   0
#define SK_R16_MASK   ((1 << SK_R16_BITS) - 1)
#define SK_G16_MASK   ((1 << SK_G16_BITS) - 1)
#define SK_B16_MASK   ((1 << SK_B16_BITS) - 1)
#define SkGetPackedR16(color)   (((unsigned)(color) >> SK_R16_SHIFT) & SK_R16_MASK)
#define SkGetPackedG16(color)   (((unsigned)(color) >> SK_G16_SHIFT) & SK_G16_MASK)
#define SkGetPackedB16(color)   (((unsigned)(color) >> SK_B16_SHIFT) & SK_B16_MASK)
#define SkR16Assert(r)   SkASSERT((unsigned)(r) <= SK_R16_MASK)
#define SkG16Assert(g)   SkASSERT((unsigned)(g) <= SK_G16_MASK)
#define SkB16Assert(b)   SkASSERT((unsigned)(b) <= SK_B16_MASK)
#define SK_R16_MASK_IN_PLACE   (SK_R16_MASK << SK_R16_SHIFT)
#define SK_G16_MASK_IN_PLACE   (SK_G16_MASK << SK_G16_SHIFT)
#define SK_B16_MASK_IN_PLACE   (SK_B16_MASK << SK_B16_SHIFT)
#define SkAlphaMulRGB16_ToU16(c, s)   (uint16_t)SkAlphaMulRGB16(c, s)
#define SkRGB16Add(a, b)   ((a) + (b))
#define SK_A32_BITS   8
#define SK_R32_BITS   8
#define SK_G32_BITS   8
#define SK_B32_BITS   8
#define SK_R32_SHIFT   0
#define SK_G32_SHIFT   8
#define SK_B32_SHIFT   16
#define SK_A32_SHIFT   24
#define SK_A32_MASK   ((1 << SK_A32_BITS) - 1)
#define SK_R32_MASK   ((1 << SK_R32_BITS) - 1)
#define SK_G32_MASK   ((1 << SK_G32_BITS) - 1)
#define SK_B32_MASK   ((1 << SK_B32_BITS) - 1)
#define SkGetPackedA32(packed)   ((uint32_t)((packed) << (24 - SK_A32_SHIFT)) >> 24)
#define SkGetPackedR32(packed)   ((uint32_t)((packed) << (24 - SK_R32_SHIFT)) >> 24)
#define SkGetPackedG32(packed)   ((uint32_t)((packed) << (24 - SK_G32_SHIFT)) >> 24)
#define SkGetPackedB32(packed)   ((uint32_t)((packed) << (24 - SK_B32_SHIFT)) >> 24)
#define SkA32Assert(a)   SkASSERT((unsigned)(a) <= SK_A32_MASK)
#define SkR32Assert(r)   SkASSERT((unsigned)(r) <= SK_R32_MASK)
#define SkG32Assert(g)   SkASSERT((unsigned)(g) <= SK_G32_MASK)
#define SkB32Assert(b)   SkASSERT((unsigned)(b) <= SK_B32_MASK)
#define SkPMColorAssert(c)
#define SkR32ToR16_MACRO(r)   ((unsigned)(r) >> (SK_R32_BITS - SK_R16_BITS))
#define SkG32ToG16_MACRO(g)   ((unsigned)(g) >> (SK_G32_BITS - SK_G16_BITS))
#define SkB32ToB16_MACRO(b)   ((unsigned)(b) >> (SK_B32_BITS - SK_B16_BITS))
#define SkR32ToR16(r)   SkR32ToR16_MACRO(r)
#define SkG32ToG16(g)   SkG32ToG16_MACRO(g)
#define SkB32ToB16(b)   SkB32ToB16_MACRO(b)
#define SkPacked32ToR16(c)   (((unsigned)(c) >> (SK_R32_SHIFT + SK_R32_BITS - SK_R16_BITS)) & SK_R16_MASK)
#define SkPacked32ToG16(c)   (((unsigned)(c) >> (SK_G32_SHIFT + SK_G32_BITS - SK_G16_BITS)) & SK_G16_MASK)
#define SkPacked32ToB16(c)   (((unsigned)(c) >> (SK_B32_SHIFT + SK_B32_BITS - SK_B16_BITS)) & SK_B16_MASK)
#define SkPixel32ToPixel16_ToU16(src)   SkToU16(SkPixel32ToPixel16(src))
#define SkShouldDitherXY(x, y)   (((x) ^ (y)) & 1)
#define SkPacked16ToR32(c)   SkR16ToR32(SkGetPackedR16(c))
#define SkPacked16ToG32(c)   SkG16ToG32(SkGetPackedG16(c))
#define SkPacked16ToB32(c)   SkB16ToB32(SkGetPackedB16(c))
#define SK_A4444_SHIFT   0
#define SK_R4444_SHIFT   12
#define SK_G4444_SHIFT   8
#define SK_B4444_SHIFT   4
#define SkA32To4444(a)   ((unsigned)(a) >> 4)
#define SkR32To4444(r)   ((unsigned)(r) >> 4)
#define SkG32To4444(g)   ((unsigned)(g) >> 4)
#define SkB32To4444(b)   ((unsigned)(b) >> 4)
#define SkA4444ToA32(a)   SkReplicateNibble(a)
#define SkR4444ToR32(r)   SkReplicateNibble(r)
#define SkG4444ToG32(g)   SkReplicateNibble(g)
#define SkB4444ToB32(b)   SkReplicateNibble(b)
#define SkGetPackedA4444(c)   (((unsigned)(c) >> SK_A4444_SHIFT) & 0xF)
#define SkGetPackedR4444(c)   (((unsigned)(c) >> SK_R4444_SHIFT) & 0xF)
#define SkGetPackedG4444(c)   (((unsigned)(c) >> SK_G4444_SHIFT) & 0xF)
#define SkGetPackedB4444(c)   (((unsigned)(c) >> SK_B4444_SHIFT) & 0xF)
#define SkPacked4444ToA32(c)   SkReplicateNibble(SkGetPackedA4444(c))
#define SkPacked4444ToR32(c)   SkReplicateNibble(SkGetPackedR4444(c))
#define SkPacked4444ToG32(c)   SkReplicateNibble(SkGetPackedG4444(c))
#define SkPacked4444ToB32(c)   SkReplicateNibble(SkGetPackedB4444(c))
#define SkPMColor16Assert(c)
#define SkAlphaMul4(value, scale)   ((value) * (scale) >> 4)

Typedefs

typedef uint16_t SkPMColor16

Functions

int SkAlphaBlend (int src, int dst, int scale256)
SkPMColor SkPackARGB32 (U8CPU a, U8CPU r, U8CPU g, U8CPU b)
uint32_t SkAlphaMulQ (uint32_t c, unsigned scale)
SkPMColor SkPMSrcOver (SkPMColor src, SkPMColor dst)
SkPMColor SkBlendARGB32 (SkPMColor src, SkPMColor dst, U8CPU aa)
U16CPU SkPixel32ToPixel16 (SkPMColor c)
U16CPU SkPack888ToRGB16 (U8CPU r, U8CPU g, U8CPU b)
uint16_t SkDitherPack888ToRGB16 (U8CPU r, U8CPU g, U8CPU b)
uint16_t SkDitherPixel32ToPixel16 (SkPMColor c)
unsigned SkR16ToR32 (unsigned r)
unsigned SkG16ToG32 (unsigned g)
unsigned SkB16ToB32 (unsigned b)
SkPMColor SkPixel16ToPixel32 (U16CPU src)
U16CPU SkAlphaMulQ4 (U16CPU c, unsigned scale)
uint32_t SkExpand_4444 (U16CPU c)
void sk_dither_memset16 (uint16_t dst[], uint16_t value, uint16_t other, int n)

Variables

const uint32_t gMask_00FF00FF
const uint16_t gMask_0F0F

Define Documentation

#define SK_A32_BITS   8

Definition at line 164 of file SkColorPriv.h.

#define SK_A32_MASK   ((1 << SK_A32_BITS) - 1)

Definition at line 187 of file SkColorPriv.h.

#define SK_A32_SHIFT   24

Definition at line 183 of file SkColorPriv.h.

#define SK_A4444_SHIFT   0

Definition at line 416 of file SkColorPriv.h.

#define SK_B16_BITS   5

Definition at line 60 of file SkColorPriv.h.

#define SK_B16_MASK   ((1 << SK_B16_BITS) - 1)

Definition at line 68 of file SkColorPriv.h.

#define SK_B16_MASK_IN_PLACE   (SK_B16_MASK << SK_B16_SHIFT)

Definition at line 88 of file SkColorPriv.h.

#define SK_B16_SHIFT   0

Definition at line 64 of file SkColorPriv.h.

#define SK_B32_BITS   8

Definition at line 167 of file SkColorPriv.h.

#define SK_B32_MASK   ((1 << SK_B32_BITS) - 1)

Definition at line 190 of file SkColorPriv.h.

#define SK_B32_SHIFT   16

Definition at line 182 of file SkColorPriv.h.

#define SK_B4444_SHIFT   4

Definition at line 419 of file SkColorPriv.h.

#define SK_G16_BITS   6

Definition at line 59 of file SkColorPriv.h.

#define SK_G16_MASK   ((1 << SK_G16_BITS) - 1)

Definition at line 67 of file SkColorPriv.h.

#define SK_G16_MASK_IN_PLACE   (SK_G16_MASK << SK_G16_SHIFT)

Definition at line 87 of file SkColorPriv.h.

#define SK_G16_SHIFT   (SK_B16_BITS)

Definition at line 63 of file SkColorPriv.h.

#define SK_G32_BITS   8

Definition at line 166 of file SkColorPriv.h.

#define SK_G32_MASK   ((1 << SK_G32_BITS) - 1)

Definition at line 189 of file SkColorPriv.h.

#define SK_G32_SHIFT   8

Definition at line 181 of file SkColorPriv.h.

#define SK_G4444_SHIFT   8

Definition at line 418 of file SkColorPriv.h.

#define SK_R16_BITS   5

Definition at line 58 of file SkColorPriv.h.

#define SK_R16_MASK   ((1 << SK_R16_BITS) - 1)

Definition at line 66 of file SkColorPriv.h.

#define SK_R16_MASK_IN_PLACE   (SK_R16_MASK << SK_R16_SHIFT)

Definition at line 86 of file SkColorPriv.h.

#define SK_R16_SHIFT   (SK_B16_BITS + SK_G16_BITS)

Definition at line 62 of file SkColorPriv.h.

#define SK_R32_BITS   8

Definition at line 165 of file SkColorPriv.h.

#define SK_R32_MASK   ((1 << SK_R32_BITS) - 1)

Definition at line 188 of file SkColorPriv.h.

#define SK_R32_SHIFT   0

Definition at line 180 of file SkColorPriv.h.

#define SK_R4444_SHIFT   12

Definition at line 417 of file SkColorPriv.h.

#define SkA32Assert (  )     SkASSERT((unsigned)(a) <= SK_A32_MASK)

Definition at line 197 of file SkColorPriv.h.

#define SkA32To4444 (  )     ((unsigned)(a) >> 4)

Definition at line 421 of file SkColorPriv.h.

#define SkA4444ToA32 (  )     SkReplicateNibble(a)

Definition at line 432 of file SkColorPriv.h.

#define SkAlphaMul ( value,
alpha256   )     (SkMulS16(value, alpha256) >> 8)

Multiplify value by 0..256, and shift the result down 8 (i.e. return (value * alpha256) >> 8)

Definition at line 48 of file SkColorPriv.h.

#define SkAlphaMul4 ( value,
scale   )     ((value) * (scale) >> 4)

Definition at line 477 of file SkColorPriv.h.

#define SkAlphaMulRGB16_ToU16 ( c,
 )     (uint16_t)SkAlphaMulRGB16(c, s)

Definition at line 119 of file SkColorPriv.h.

#define SkB16Assert (  )     SkASSERT((unsigned)(b) <= SK_B16_MASK)

Definition at line 76 of file SkColorPriv.h.

#define SkB32Assert (  )     SkASSERT((unsigned)(b) <= SK_B32_MASK)

Definition at line 200 of file SkColorPriv.h.

#define SkB32To4444 (  )     ((unsigned)(b) >> 4)

Definition at line 424 of file SkColorPriv.h.

#define SkB32ToB16 (  )     SkB32ToB16_MACRO(b)

Definition at line 278 of file SkColorPriv.h.

#define SkB32ToB16_MACRO (  )     ((unsigned)(b) >> (SK_B32_BITS - SK_B16_BITS))

Definition at line 257 of file SkColorPriv.h.

#define SkB4444ToB32 (  )     SkReplicateNibble(b)

Definition at line 435 of file SkColorPriv.h.

#define SkG16Assert (  )     SkASSERT((unsigned)(g) <= SK_G16_MASK)

Definition at line 75 of file SkColorPriv.h.

#define SkG32Assert (  )     SkASSERT((unsigned)(g) <= SK_G32_MASK)

Definition at line 199 of file SkColorPriv.h.

#define SkG32To4444 (  )     ((unsigned)(g) >> 4)

Definition at line 423 of file SkColorPriv.h.

#define SkG32ToG16 (  )     SkG32ToG16_MACRO(g)

Definition at line 277 of file SkColorPriv.h.

#define SkG32ToG16_MACRO (  )     ((unsigned)(g) >> (SK_G32_BITS - SK_G16_BITS))

Definition at line 256 of file SkColorPriv.h.

#define SkG4444ToG32 (  )     SkReplicateNibble(g)

Definition at line 434 of file SkColorPriv.h.

#define SkGetPackedA32 ( packed   )     ((uint32_t)((packed) << (24 - SK_A32_SHIFT)) >> 24)

Definition at line 192 of file SkColorPriv.h.

#define SkGetPackedA4444 (  )     (((unsigned)(c) >> SK_A4444_SHIFT) & 0xF)

Definition at line 437 of file SkColorPriv.h.

#define SkGetPackedB16 ( color   )     (((unsigned)(color) >> SK_B16_SHIFT) & SK_B16_MASK)

Definition at line 72 of file SkColorPriv.h.

#define SkGetPackedB32 ( packed   )     ((uint32_t)((packed) << (24 - SK_B32_SHIFT)) >> 24)

Definition at line 195 of file SkColorPriv.h.

#define SkGetPackedB4444 (  )     (((unsigned)(c) >> SK_B4444_SHIFT) & 0xF)

Definition at line 440 of file SkColorPriv.h.

#define SkGetPackedG16 ( color   )     (((unsigned)(color) >> SK_G16_SHIFT) & SK_G16_MASK)

Definition at line 71 of file SkColorPriv.h.

#define SkGetPackedG32 ( packed   )     ((uint32_t)((packed) << (24 - SK_G32_SHIFT)) >> 24)

Definition at line 194 of file SkColorPriv.h.

#define SkGetPackedG4444 (  )     (((unsigned)(c) >> SK_G4444_SHIFT) & 0xF)

Definition at line 439 of file SkColorPriv.h.

#define SkGetPackedR16 ( color   )     (((unsigned)(color) >> SK_R16_SHIFT) & SK_R16_MASK)

Definition at line 70 of file SkColorPriv.h.

#define SkGetPackedR32 ( packed   )     ((uint32_t)((packed) << (24 - SK_R32_SHIFT)) >> 24)

Definition at line 193 of file SkColorPriv.h.

#define SkGetPackedR4444 (  )     (((unsigned)(c) >> SK_R4444_SHIFT) & 0xF)

Definition at line 438 of file SkColorPriv.h.

#define SkPacked16ToB32 (  )     SkB16ToB32(SkGetPackedB16(c))

Definition at line 379 of file SkColorPriv.h.

#define SkPacked16ToG32 (  )     SkG16ToG32(SkGetPackedG16(c))

Definition at line 378 of file SkColorPriv.h.

#define SkPacked16ToR32 (  )     SkR16ToR32(SkGetPackedR16(c))

Definition at line 377 of file SkColorPriv.h.

#define SkPacked32ToB16 (  )     (((unsigned)(c) >> (SK_B32_SHIFT + SK_B32_BITS - SK_B16_BITS)) & SK_B16_MASK)

Definition at line 283 of file SkColorPriv.h.

#define SkPacked32ToG16 (  )     (((unsigned)(c) >> (SK_G32_SHIFT + SK_G32_BITS - SK_G16_BITS)) & SK_G16_MASK)

Definition at line 282 of file SkColorPriv.h.

#define SkPacked32ToR16 (  )     (((unsigned)(c) >> (SK_R32_SHIFT + SK_R32_BITS - SK_R16_BITS)) & SK_R16_MASK)

Definition at line 281 of file SkColorPriv.h.

#define SkPacked4444ToA32 (  )     SkReplicateNibble(SkGetPackedA4444(c))

Definition at line 442 of file SkColorPriv.h.

#define SkPacked4444ToB32 (  )     SkReplicateNibble(SkGetPackedB4444(c))

Definition at line 445 of file SkColorPriv.h.

#define SkPacked4444ToG32 (  )     SkReplicateNibble(SkGetPackedG4444(c))

Definition at line 444 of file SkColorPriv.h.

#define SkPacked4444ToR32 (  )     SkReplicateNibble(SkGetPackedR4444(c))

Definition at line 443 of file SkColorPriv.h.

#define SkPixel32ToPixel16_ToU16 ( src   )     SkToU16(SkPixel32ToPixel16(src))

Definition at line 300 of file SkColorPriv.h.

#define SkPMColor16Assert (  ) 

Definition at line 461 of file SkColorPriv.h.

#define SkPMColorAssert (  ) 

Definition at line 215 of file SkColorPriv.h.

#define SkR16Assert (  )     SkASSERT((unsigned)(r) <= SK_R16_MASK)

Definition at line 74 of file SkColorPriv.h.

#define SkR32Assert (  )     SkASSERT((unsigned)(r) <= SK_R32_MASK)

Definition at line 198 of file SkColorPriv.h.

#define SkR32To4444 (  )     ((unsigned)(r) >> 4)

Definition at line 422 of file SkColorPriv.h.

#define SkR32ToR16 (  )     SkR32ToR16_MACRO(r)

Definition at line 276 of file SkColorPriv.h.

#define SkR32ToR16_MACRO (  )     ((unsigned)(r) >> (SK_R32_BITS - SK_R16_BITS))

Definition at line 255 of file SkColorPriv.h.

#define SkR4444ToR32 (  )     SkReplicateNibble(r)

Definition at line 433 of file SkColorPriv.h.

#define SkRGB16Add ( a,
 )     ((a) + (b))

Definition at line 159 of file SkColorPriv.h.

#define SkShouldDitherXY ( x,
 )     (((x) ^ (y)) & 1)

Definition at line 305 of file SkColorPriv.h.


Typedef Documentation

typedef uint16_t SkPMColor16

Definition at line 413 of file SkColorPriv.h.


Function Documentation

void sk_dither_memset16 ( uint16_t  dst[],
uint16_t  value,
uint16_t  other,
int  n 
)
int SkAlphaBlend ( int  src,
int  dst,
int  scale256 
) [inline]

Definition at line 53 of file SkColorPriv.h.

uint32_t SkAlphaMulQ ( uint32_t  c,
unsigned  scale 
) [inline]

Definition at line 230 of file SkColorPriv.h.

U16CPU SkAlphaMulQ4 ( U16CPU  c,
unsigned  scale 
) [inline]

Definition at line 512 of file SkColorPriv.h.

unsigned SkB16ToB32 ( unsigned  b  )  [inline]

Definition at line 372 of file SkColorPriv.h.

SkPMColor SkBlendARGB32 ( SkPMColor  src,
SkPMColor  dst,
U8CPU  aa 
) [inline]

Definition at line 243 of file SkColorPriv.h.

uint16_t SkDitherPack888ToRGB16 ( U8CPU  r,
U8CPU  g,
U8CPU  b 
) [inline]

Definition at line 307 of file SkColorPriv.h.

uint16_t SkDitherPixel32ToPixel16 ( SkPMColor  c  )  [inline]

Definition at line 316 of file SkColorPriv.h.

uint32_t SkExpand_4444 ( U16CPU  c  )  [inline]

Expand the SkPMColor16 color into a 32bit value that can be scaled all at once by a value up to 16. Used in conjunction with SkCompact_4444.

Definition at line 532 of file SkColorPriv.h.

unsigned SkG16ToG32 ( unsigned  g  )  [inline]

Definition at line 368 of file SkColorPriv.h.

U16CPU SkPack888ToRGB16 ( U8CPU  r,
U8CPU  g,
U8CPU  b 
) [inline]

Definition at line 293 of file SkColorPriv.h.

SkPMColor SkPackARGB32 ( U8CPU  a,
U8CPU  r,
U8CPU  g,
U8CPU  b 
) [inline]

Definition at line 218 of file SkColorPriv.h.

SkPMColor SkPixel16ToPixel32 ( U16CPU  src  )  [inline]

Definition at line 381 of file SkColorPriv.h.

U16CPU SkPixel32ToPixel16 ( SkPMColor  c  )  [inline]

Definition at line 285 of file SkColorPriv.h.

SkPMColor SkPMSrcOver ( SkPMColor  src,
SkPMColor  dst 
) [inline]

Definition at line 239 of file SkColorPriv.h.

unsigned SkR16ToR32 ( unsigned  r  )  [inline]

Definition at line 364 of file SkColorPriv.h.


Variable Documentation

const uint32_t gMask_00FF00FF
const uint16_t gMask_0F0F

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