Remove the remainder of the skia source code from the Chromium repo....

skia/sgl/SkBitmapProcState_matrixProcs.cpp

-#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
-#define TILEX_TRANS(x, max)     SkClampMax(x, max)
-#define TILEY_TRANS(y, max)     SkClampMax(y, max)
-#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)
-#define SK_MOD(a, b)            (((a)%(b)) < 0 ? ((a)%(b) + (b)) : (a)%(b))
-#define TILEX_TRANS(x, max)     (SK_MOD((x), ((max) + 1)))
-#define TILEY_TRANS(y, max)     (SK_MOD((y), ((max) + 1)))
-#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) >> 16)
-#define TILEY_PROCF(fy, max)    (tileProcY(fy, max) >> 16)
-#define TILEX_LOW_BITS(fx, max) ((tileProcX(fx, max) >> 14) & 0x3)
-#define TILEY_LOW_BITS(fy, max) ((tileProcY(fy, max) >> 14) & 0x3)
-#define PREAMBLE_TRANS(state)   SkBitmapProcState::IntTileProc tileProcX = (state).iTileProcX; \
-                                SkBitmapProcState::IntTileProc tileProcY = (state).iTileProcY
-#define TILEX_TRANS(x, max)     tileProcX(x, max)
-#define TILEY_TRANS(y, max)     tileProcY(y, max)
-#include "SkBitmapProcState_matrix.h"
-
-
-
-static inline SkFixed fixed_clamp(SkFixed x, int max)
-{
-#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 * (max + 1);
-}
-
-static inline SkFixed fixed_repeat(SkFixed x, int max)
-{
-    return (x & 0xFFFF) * (max + 1);
-}
-
-static inline SkFixed fixed_mirror(SkFixed x, int max)
-{
-    SkFixed s = x << 15 >> 31;
-    // s is FFFFFFFF if we're on an odd interval, or 0 if an even interval
-    x = ((x ^ s) & 0xFFFF) * (max + 1);
-    return s ? (x ^ 0xFFFF) : x;
-}
-
-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;
-}
-
-static inline int int_clamp(int x, int max)
-{
-    SkASSERT(max >= 0);
-
-    return SkClampMax(x, max);
-}
-
-static inline int int_repeat(int x, int max)
-{
-    SkASSERT(max >= 0);
-
-    return x % (max + 1);
-}
-
-static inline int int_mirror(int x, int max)
-{
-    SkASSERT(max >= 0);
-
-    int dx = x % (max + 1);
-    if (dx < 0)
-        dx = -dx - 1;
-
-    return (x / (max + 1) % 2) ? max - dx : dx;
-}
-
-static SkBitmapProcState::IntTileProc choose_int_tile_proc(unsigned m)
-{
-    if (SkShader::kClamp_TileMode == m)
-        return int_clamp;
-    if (SkShader::kRepeat_TileMode == m)
-        return int_repeat;
-    SkASSERT(SkShader::kMirror_TileMode == m);
-    return int_mirror;
-}
-
-SkBitmapProcState::MatrixProc SkBitmapProcState::chooseMatrixProc()
-{
-    int index = 0;
-    if (fDoFilter)
-        index = 1;
-    if (fInvType & SkMatrix::kPerspective_Mask)
-        index |= 6;
-    else if (fInvType & SkMatrix::kAffine_Mask)
-        index |= 4;
-    else if (fInvType & SkMatrix::kScale_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);
-    iTileProcX = choose_int_tile_proc(fTileModeX);
-    iTileProcY = choose_int_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);
-}
-