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add special proc for repeat 16->16 filter bitmap shader

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git-svn-id: http://skia.googlecode.com/svn/trunk@273 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@android.com 2009-07-17 21:24:56 +00:00
parent 2a679d27f8
commit aa9152abbc
2 changed files with 22 additions and 2 deletions
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23
src/core/SkBitmapProcState.cpp
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@ -302,6 +302,20 @@ SkASSERT(state.fAlphaScale < 256)
#define FILTER_TO_DST(c) SkCompact_rgb_16((c) >> 5)
#include "SkBitmapProcState_shaderproc.h"
#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 MAKENAME(suffix) Repeat_S16_D16 ## suffix
#define SRCTYPE uint16_t
#define DSTTYPE uint16_t
#define CHECKSTATE(state) SkASSERT(state.fBitmap->config() == SkBitmap::kRGB_565_Config)
#define SRC_TO_FILTER(src) src
#define FILTER_TO_DST(c) SkCompact_rgb_16((c) >> 5)
#include "SkBitmapProcState_shaderproc.h"
///////////////////////////////////////////////////////////////////////////////
static bool valid_for_filtering(unsigned dimension) {
@ -485,8 +499,13 @@ bool SkBitmapProcState::chooseProcs(const SkMatrix& inv, const SkPaint& paint) {
fSampleProc16 = gSample16[index];
// our special-case shaderprocs
if (clamp_clamp && (7 == index)) {
fShaderProc16 = Clamp_S16_D16_filter_DX_shaderproc;
if (S16_D16_filter_DX == fSampleProc16) {
if (clamp_clamp) {
fShaderProc16 = Clamp_S16_D16_filter_DX_shaderproc;
} else if (SkShader::kRepeat_TileMode == fTileModeX &&
SkShader::kRepeat_TileMode == fTileModeY) {
fShaderProc16 = Repeat_S16_D16_filter_DX_shaderproc;
}
}
return true;
}

1
src/core/SkBitmapProcState_shaderproc.h
View File

@ -70,6 +70,7 @@ static void SCALE_FILTER_NAME(const SkBitmapProcState& s, int x, int y,
#undef TILEY_PROCF
#undef TILEX_LOW_BITS
#undef TILEY_LOW_BITS
#undef DSTTYPE
#ifdef CHECK_FOR_DECAL
#undef CHECK_FOR_DECAL
#endif