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#include "SkBitmapProcState.h"
#include "SkPerspIter.h"
#include "SkShader.h"
void decal_nofilter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count);
void decal_filter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count);
#ifdef SK_CPU_BENDIAN
#define PACK_TWO_SHORTS(pri, sec) ((pri) << 16 | (sec))
#else
#define PACK_TWO_SHORTS(pri, sec) ((pri) | ((sec) << 16))
#endif
#ifdef SK_DEBUG
static uint32_t pack_two_shorts(U16CPU pri, U16CPU sec)
{
SkASSERT((uint16_t)pri == pri);
SkASSERT((uint16_t)sec == sec);
return PACK_TWO_SHORTS(pri, sec);
}
#else
#define pack_two_shorts(pri, sec) PACK_TWO_SHORTS(pri, sec)
#endif
#define MAKENAME(suffix) ClampX_ClampY ## suffix
#define TILEX_PROCF(fx, max) SkClampMax((fx) >> 16, max)
#define TILEY_PROCF(fy, max) SkClampMax((fy) >> 16, max)
#define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF)
#define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF)
#define CHECK_FOR_DECAL
#include "SkBitmapProcState_matrix.h"
#define MAKENAME(suffix) RepeatX_RepeatY ## suffix
#define TILEX_PROCF(fx, max) (((fx) & 0xFFFF) * ((max) + 1) >> 16)
#define TILEY_PROCF(fy, max) (((fy) & 0xFFFF) * ((max) + 1) >> 16)
#define TILEX_LOW_BITS(fx, max) ((((fx) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
#define TILEY_LOW_BITS(fy, max) ((((fy) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
#include "SkBitmapProcState_matrix.h"
#define MAKENAME(suffix) GeneralXY ## suffix
#define PREAMBLE(state) SkBitmapProcState::FixedTileProc tileProcX = (state).fTileProcX; \
SkBitmapProcState::FixedTileProc tileProcY = (state).fTileProcY
#define PREAMBLE_PARAM_X , SkBitmapProcState::FixedTileProc tileProcX
#define PREAMBLE_PARAM_Y , SkBitmapProcState::FixedTileProc tileProcY
#define PREAMBLE_ARG_X , tileProcX
#define PREAMBLE_ARG_Y , tileProcY
#define TILEX_PROCF(fx, max) (tileProcX(fx) * ((max) + 1) >> 16)
#define TILEY_PROCF(fy, max) (tileProcY(fy) * ((max) + 1) >> 16)
#define TILEX_LOW_BITS(fx, max) ((tileProcX(fx) * ((max) + 1) >> 12) & 0xF)
#define TILEY_LOW_BITS(fy, max) ((tileProcY(fy) * ((max) + 1) >> 12) & 0xF)
#include "SkBitmapProcState_matrix.h"
static inline U16CPU fixed_clamp(SkFixed x)
{
#ifdef SK_CPU_HAS_CONDITIONAL_INSTR
if (x >> 16)
x = 0xFFFF;
if (x < 0)
x = 0;
#else
if (x >> 16)
{
if (x < 0)
x = 0;
else
x = 0xFFFF;
}
#endif
return x;
}
static inline U16CPU fixed_repeat(SkFixed x)
{
return x & 0xFFFF;
}
static inline U16CPU fixed_mirror(SkFixed x)
{
SkFixed s = x << 15 >> 31;
// s is FFFFFFFF if we're on an odd interval, or 0 if an even interval
return (x ^ s) & 0xFFFF;
}
static SkBitmapProcState::FixedTileProc choose_tile_proc(unsigned m)
{
if (SkShader::kClamp_TileMode == m)
return fixed_clamp;
if (SkShader::kRepeat_TileMode == m)
return fixed_repeat;
SkASSERT(SkShader::kMirror_TileMode == m);
return fixed_mirror;
}
SkBitmapProcState::MatrixProc SkBitmapProcState::chooseMatrixProc()
{
int index = 0;
if (fDoFilter)
index = 1;
if (fInvType & SkMatrix::kPerspective_Mask)
index |= 4;
else if (fInvType & SkMatrix::kAffine_Mask)
index |= 2;
if (SkShader::kClamp_TileMode == fTileModeX &&
SkShader::kClamp_TileMode == fTileModeY)
{
// clamp gets special version of filterOne
fFilterOneX = SK_Fixed1;
fFilterOneY = SK_Fixed1;
return ClampX_ClampY_Procs[index];
}
// all remaining procs use this form for filterOne
fFilterOneX = SK_Fixed1 / fBitmap->width();
fFilterOneY = SK_Fixed1 / fBitmap->height();
if (SkShader::kRepeat_TileMode == fTileModeX &&
SkShader::kRepeat_TileMode == fTileModeY)
{
return RepeatX_RepeatY_Procs[index];
}
// only general needs these procs
fTileProcX = choose_tile_proc(fTileModeX);
fTileProcY = choose_tile_proc(fTileModeY);
return GeneralXY_Procs[index];
}
//////////////////////////////////////////////////////////////////////////////
void decal_nofilter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count)
{
int i;
for (i = (count >> 2); i > 0; --i)
{
*dst++ = pack_two_shorts(fx >> 16, (fx + dx) >> 16);
fx += dx+dx;
*dst++ = pack_two_shorts(fx >> 16, (fx + dx) >> 16);
fx += dx+dx;
}
uint16_t* xx = (uint16_t*)dst;
for (i = (count & 3); i > 0; --i)
{
*xx++ = SkToU16(fx >> 16); fx += dx;
}
}
void decal_filter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count)
{
if (count & 1)
{
SkASSERT((fx >> (16 + 14)) == 0);
*dst++ = (fx >> 12 << 14) | ((fx >> 16) + 1);
fx += dx;
}
while ((count -= 2) >= 0)
{
SkASSERT((fx >> (16 + 14)) == 0);
*dst++ = (fx >> 12 << 14) | ((fx >> 16) + 1);
fx += dx;
*dst++ = (fx >> 12 << 14) | ((fx >> 16) + 1);
fx += dx;
}
}
///////////////////////////////////
void repeat_nofilter_identity(uint32_t dst[], int x, int width, int count)
{
if (x >= width)
x %= width;
int i;
uint16_t* xx = (uint16_t*)dst;
// do the first partial run
int n = width - x;
if (n > count)
n = count;
count -= n;
n += x;
for (i = x; i < n; i++)
*xx++ = SkToU16(i);
// do all the full-width runs
while ((count -= width) >= 0)
for (i = 0; i < width; i++)
*xx++ = SkToU16(i);
// final cleanup run
count += width;
for (i = 0; i < count; i++)
*xx++ = SkToU16(i);
}
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