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Unified Diff: skia/sgl/SkBitmapShader.cpp

Issue 113827: Remove the remainder of the skia source code from the Chromium repo.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 7 months ago
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Index: skia/sgl/SkBitmapShader.cpp
===================================================================
--- skia/sgl/SkBitmapShader.cpp (revision 16859)
+++ skia/sgl/SkBitmapShader.cpp (working copy)
@@ -1,822 +0,0 @@
-/* Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-** http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#if 0
-
-#include "SkBitmapShader.h"
-#include "SkBitmapSampler.h"
-
-#ifdef SK_SUPPORT_MIPMAP
-static SkFixed find_mip_level(SkFixed dx, SkFixed dy)
-{
- dx = SkAbs32(dx);
- dy = SkAbs32(dy);
- if (dx < dy)
- dx = dy;
-
- if (dx < SK_Fixed1)
- return 0;
-
- int clz = SkCLZ(dx);
- SkASSERT(clz >= 1 && clz <= 15);
- return SkIntToFixed(15 - clz) + ((unsigned)(dx << (clz + 1)) >> 16);
-}
-#endif
-
-SkBitmapShader::SkBitmapShader(const SkBitmap& src, bool doFilter,
- TileMode tmx, TileMode tmy)
- :
-#ifdef SK_SUPPORT_MIPMAP
- fMipLevel(0), fMipSrcBitmap(src),
-#endif
- fOrigSrcBitmap(src)
-
-{
- fFilterBitmap = doFilter;
- fTileModeX = SkToU8(tmx);
- fTileModeY = SkToU8(tmy);
-}
-
-SkBitmapShader::SkBitmapShader(SkFlattenableReadBuffer& buffer) :
- INHERITED(buffer)
-{
- Bitmap src;
- buffer.readBitmap(&src);
-#ifdef SK_SUPPORT_MIPMAP
- fMipLevel = 0;
- fMipSrcBitmap = src;
-#endif
- fOrigSrcBitmap = src;
- fFilterBitmap = buffer.readU8();
- fTileModeX = buffer.readU8();
- fTileModeY = buffer.readU8();
-}
-
-void SkBitmapShader::flatten(SkFlattenableWriteBuffer& buffer)
-{
- this->INHERITED::flatten(buffer);
- buffer.writeBitmap(&fOrigSrcBitmap);
- buffer.write8(fFilterBitmap);
- buffer.write8(fTileModeX);
- buffer.write8(fTileModeY);
-}
-
-bool SkBitmapShader::setContext(const SkBitmap& device, const SkPaint& paint, const SkMatrix& matrix)
-{
- // do this first, so we have a correct inverse matrix
- if (!this->INHERITED::setContext(device, paint, matrix))
- return false;
-
- if (fOrigSrcBitmap.getConfig() == SkBitmap::kNo_Config ||
- fOrigSrcBitmap.width() == 0 ||
- fOrigSrcBitmap.height() == 0)
- return false;
-
- SkBitmap& bm = fOrigSrcBitmap;
-
-#ifdef SK_SUPPORT_MIPMAP
- if (fOrigSrcBitmap.countMipLevels())
- {
- const SkMatrix& inv = this->getTotalInverse();
-
- fMipLevel = SkMin32(find_mip_level( SkScalarToFixed(inv.getScaleX()),
- SkScalarToFixed(inv.getSkewY())),
- SkIntToFixed(fOrigSrcBitmap.countMipLevels() - 1));
-
-// SkDEBUGF(("BitmapShader miplevel=%x\n", fMipLevel));
-
- const SkBitmap::MipLevel* mm = fOrigSrcBitmap.getMipLevel(fMipLevel >> 16);
-
- fMipSrcBitmap.setConfig(fOrigSrcBitmap.getConfig(),
- mm->fWidth,
- mm->fHeight,
- mm->fRowBytes);
- fMipSrcBitmap.setPixels(mm->fPixels);
- bm = fMipSrcBitmap;
- }
- else
- {
- fMipLevel = 0;
- fMipSrcBitmap = fOrigSrcBitmap;
- }
-#endif
-
- fFlags = 0;
- if (paint.getAlpha() == 255 && bm.isOpaque())
- fFlags |= kOpaqueAlpha_Flag;
-
- return true;
-}
-
-///////////////////////////////////////////////////////////////////////////
-
-#include "SkColorPriv.h"
-#include "SkBitmapSampler.h"
-#include "SkPerspIter.h"
-
-class Sampler_BitmapShader : public SkBitmapShader {
-public:
- Sampler_BitmapShader(const SkBitmap& src, bool doFilter,
- TileMode tmx, TileMode tmy)
- : SkBitmapShader(src, doFilter, tmx, tmy)
- {
- // make sure to pass our copy of the src bitmap to the sampler, and not the
- // original parameter (which might go away).
- fSampler = NULL;
- }
-
- virtual ~Sampler_BitmapShader()
- {
- SkDELETE(fSampler);
- }
-
- virtual bool setContext(const SkBitmap& device, const SkPaint& paint, const SkMatrix& matrix)
- {
- if (this->INHERITED::setContext(device, paint, matrix))
- {
- SkDELETE(fSampler);
- fSampler = SkBitmapSampler::Create(this->getSrcBitmap(), this->getFilterBitmap(),
- this->getTileModeX(), this->getTileModeY());
- fSampler->setPaint(paint);
- return true;
- }
- return false;
- }
-
- enum {
- kMaxPointStorageCount = 32
- };
-
- virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count)
- {
- unsigned scale = SkAlpha255To256(this->getPaintAlpha());
- const SkMatrix& inv = this->getTotalInverse();
- SkMatrix::MapPtProc proc = this->getInverseMapPtProc();
- SkBitmapSampler* sampler = fSampler;
- MatrixClass mc = this->getInverseClass();
-
- SkPoint srcPt;
-
- if (mc != kPerspective_MatrixClass)
- {
- proc(inv, SkIntToScalar(x) + SK_ScalarHalf,
- SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
-
- SkFixed fx = SkScalarToFixed(srcPt.fX);
- SkFixed fy = SkScalarToFixed(srcPt.fY);
- SkFixed dx, dy;
-
- if (mc == kLinear_MatrixClass)
- {
- dx = SkScalarToFixed(inv.getScaleX());
- dy = SkScalarToFixed(inv.getSkewY());
- }
- else
- (void)inv.fixedStepInX(SkIntToScalar(y), &dx, &dy);
-
-#if defined(SK_SUPPORT_MIPMAP)
- { int level = this->getMipLevel() >> 16;
- fx >>= level;
- fy >>= level;
- dx >>= level;
- dy >>= level;
- }
-#endif
- if (scale == 256)
- {
- for (int i = 0; i < count; i++)
- {
- dstC[i] = sampler->sample(fx, fy);
- fx += dx;
- fy += dy;
- }
- }
- else
- {
- for (int i = 0; i < count; i++)
- {
- uint32_t c = sampler->sample(fx, fy);
- dstC[i] = SkAlphaMulQ(c, scale);
- fx += dx;
- fy += dy;
- }
- }
- }
- else
- {
- SkPerspIter iter(inv, SkIntToScalar(x) + SK_ScalarHalf,
- SkIntToScalar(y) + SK_ScalarHalf, count);
- if (scale == 256)
- {
- while ((count = iter.next()) != 0)
- {
- const SkFixed* src = iter.getXY();
- for (int i = 0; i < count; i++)
- {
- *dstC++ = sampler->sample(src[0], src[1]);
- src += 2;
- }
- }
- }
- else
- {
- while ((count = iter.next()) != 0)
- {
- const SkFixed* src = iter.getXY();
- for (int i = 0; i < count; i++)
- {
- uint32_t c = sampler->sample(src[0] - SK_FixedHalf, src[1] - SK_FixedHalf);
- *dstC++ = SkAlphaMulQ(c, scale);
- src += 2;
- }
- }
- }
- }
- }
-
-protected:
-
- const SkMatrix& getUnitInverse() const { return fUnitInverse; }
- SkMatrix::MapPtProc getUnitInverseProc() const { return fUnitInverseProc; }
-
- /* takes computed inverse (from setContext) and computes fUnitInverse,
- taking srcBitmap width/height into account, so that fUnitInverse
- walks 0...1, allowing the tile modes to all operate in a fast 16bit
- space (no need for mod). The resulting coords need to be scaled by
- width/height to get back into src space (coord * width >> 16).
- */
- void computeUnitInverse()
- {
- const SkBitmap& src = getSrcBitmap();
- fUnitInverse = this->getTotalInverse();
- fUnitInverse.postIDiv(src.width(), src.height());
- fUnitInverseProc = fUnitInverse.getMapPtProc();
- }
-
-private:
- SkBitmapSampler* fSampler;
- SkMatrix fUnitInverse;
- SkMatrix::MapPtProc fUnitInverseProc;
-
- typedef SkBitmapShader INHERITED;
-};
-
-///////////////////////////////////////////////////////////////////////////
-
-class HasSpan16_Sampler_BitmapShader : public Sampler_BitmapShader {
-public:
- HasSpan16_Sampler_BitmapShader(const SkBitmap& src, bool doFilter,
- TileMode tmx, TileMode tmy)
- : Sampler_BitmapShader(src, doFilter, tmx, tmy)
- {
- }
-
- virtual uint32_t getFlags()
- {
- uint32_t flags = this->INHERITED::getFlags();
-
- switch (this->getSrcBitmap().getConfig()) {
- case SkBitmap::kRGB_565_Config:
- flags |= kHasSpan16_Flag;
- break;
- case SkBitmap::kIndex8_Config:
- case SkBitmap::kARGB_8888_Config:
- if (this->getSrcBitmap().isOpaque())
- flags |= kHasSpan16_Flag;
- break;
- default:
- break;
- }
- return flags;
- }
-
- const SkBitmap& revealSrcBitmap() const { return this->getSrcBitmap(); }
- uint8_t revealPaintAlpha() const { return this->getPaintAlpha(); }
- const SkMatrix& revealTotalInverse() const { return this->getTotalInverse(); }
-
-private:
- typedef Sampler_BitmapShader INHERITED;
-};
-
-///////////////////////////////////////////////////////////////////////////
-
-static void Index8_RepeatTile_Sprite16(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, uint16_t dstC[], int count)
-{
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkColorTable* ctable = srcBitmap.getColorTable();
- const uint16_t* colors = ctable->lock16BitCache();
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
- const uint8_t* row = srcBitmap.getAddr8(0, y);
- const uint8_t* src = row + x;
-
- // do the first partial run
- int n = width - x;
- if (n > count) n = count;
- count -= n;
- SkASSERT(n > 0);
- do {
- *dstC++ = colors[*src++];
- } while (--n > 0);
-
- // do 1 complete run
- if (count >= width)
- {
- uint16_t* baseDstC = dstC; // remember the first complete run start
- n = width;
- count -= width;
- src = row;
- do {
- *dstC++ = colors[*src++];
- } while (--n > 0);
-
- // do the rest of the complete runs
- while (count >= width)
- {
- count -= width;
- memcpy(dstC, baseDstC, width << 1);
- dstC += width;
- }
- // do final partial run
- if (count > 0)
- memcpy(dstC, baseDstC, count << 1);
- }
- else // do final partial
- {
- if (count > 0)
- {
- src = row;
- do {
- *dstC++ = colors[*src++];
- } while (--count > 0);
- }
- }
-
- ctable->unlock16BitCache();
-}
-
-static void Index8_RepeatTile_Sprite32(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, SkPMColor dstC[], int count)
-{
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkColorTable* ctable = srcBitmap.getColorTable();
- const SkPMColor* colors = ctable->lockColors();
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
-
- const uint8_t* row = srcBitmap.getAddr8(0, y);
- const uint8_t* src = row + x;
-
- // do the first partial run
- int n = width - x;
- if (n > count) n = count;
- count -= n;
- SkASSERT(n > 0);
- do {
- *dstC++ = colors[*src++];
- } while (--n > 0);
-
- // do 1 complete run
- if (count >= width)
- {
- SkPMColor* baseDstC = dstC; // remember the first complete run start
- n = width;
- count -= width;
- src = row;
- do {
- *dstC++ = colors[*src++];
- } while (--n > 0);
-
- // do the rest of the complete runs
- while (count >= width)
- {
- count -= width;
- memcpy(dstC, baseDstC, width << 2);
- dstC += width;
- }
- // do final partial run
- if (count > 0)
- memcpy(dstC, baseDstC, count << 2);
- }
- else // do final partial
- {
- if (count > 0)
- {
- src = row;
- do {
- *dstC++ = colors[*src++];
- } while (--count > 0);
- }
- }
-
- ctable->unlockColors(false);
-}
-
-static void RGB16_RepeatTile_Sprite16(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, uint16_t dstC[], int count)
-{
- SkASSERT(count > 0);
-
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkASSERT(width > 0 && height > 0);
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
-
- const uint16_t* row = srcBitmap.getAddr16(0, y);
- const uint16_t* src = row + x;
-
- int n = SkMin32(width - x, count);
-
- for (;;)
- {
- SkASSERT(n > 0 && count >= n);
- memcpy(dstC, src, n << 1);
- count -= n;
- if (count == 0)
- break;
- dstC += n;
- src = row;
- n = SkMin32(width, count);
- }
-}
-
-static void RGB16_RepeatTile_Sprite32(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, SkPMColor dstC[], int count)
-{
- SkASSERT(count > 0);
-
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkASSERT(width > 0 && height > 0);
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
-
- const uint16_t* row = srcBitmap.getAddr16(0, y);
- const uint16_t* src = row + x;
-
- int n = SkMin32(width - x, count);
-
- // do the first partial run
- count -= n;
- SkASSERT(n > 0);
- do {
- *dstC++ = SkPixel16ToPixel32(*src++);
- } while (--n > 0);
-
- // do 1 complete run
- if (count >= width)
- {
- SkPMColor* baseDstC = dstC; // remember the first complete run start
- n = width;
- count -= width;
- src = row;
- do {
- *dstC++ = SkPixel16ToPixel32(*src++);
- } while (--n > 0);
-
- // do the rest of the complete runs
- while (count >= width)
- {
- count -= width;
- memcpy(dstC, baseDstC, width << 2);
- dstC += width;
- }
- // do final partial run
- if (count > 0)
- memcpy(dstC, baseDstC, count << 2);
- }
- else // do final partial
- {
- if (count > 0)
- {
- src = row;
- do {
- *dstC++ = SkPixel16ToPixel32(*src++);;
- } while (--count > 0);
- }
- }
-}
-
-static void ARGB32_RepeatTile_Sprite16(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, uint16_t dstC[], int count)
-{
- SkASSERT(count > 0);
-
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkASSERT(width > 0 && height > 0);
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
-
- const SkPMColor* row = srcBitmap.getAddr32(0, y);
- const SkPMColor* src = row + x;
-
- int n = SkMin32(width - x, count);
-
- // do the first partial run
- count -= n;
- SkASSERT(n > 0);
- do {
- *dstC++ = SkPixel32ToPixel16(*src++);
- } while (--n > 0);
-
- // do 1 complete run
- if (count >= width)
- {
- uint16_t* baseDstC = dstC; // remember the first complete run start
- n = width;
- count -= width;
- src = row;
- do {
- *dstC++ = SkPixel32ToPixel16(*src++);
- } while (--n > 0);
-
- // do the rest of the complete runs
- while (count >= width)
- {
- count -= width;
- memcpy(dstC, baseDstC, width << 1);
- dstC += width;
- }
- // do final partial run
- if (count > 0)
- memcpy(dstC, baseDstC, count << 1);
- }
- else // do final partial
- {
- if (count > 0)
- {
- src = row;
- do {
- *dstC++ = SkPixel32ToPixel16(*src++);;
- } while (--count > 0);
- }
- }
-}
-
-static void ARGB32_RepeatTile_Sprite32(HasSpan16_Sampler_BitmapShader* shader,
- int x, int y, SkPMColor dstC[], int count)
-{
- SkASSERT(count > 0);
-
- const SkMatrix& inv = shader->revealTotalInverse();
- const SkBitmap& srcBitmap = shader->revealSrcBitmap();
- int width = srcBitmap.width();
- int height = srcBitmap.height();
-
- SkASSERT(width > 0 && height > 0);
-
- x += SkScalarRound(inv[SkMatrix::kMTransX]);
- y += SkScalarRound(inv[SkMatrix::kMTransY]);
-
- x = do_repeat_mod(x, width - 1);
- y = do_repeat_mod(y, height - 1);
-
- const SkPMColor* row = srcBitmap.getAddr32(0, y);
- const SkPMColor* src = row + x;
-
- int n = SkMin32(width - x, count);
-
- for (;;)
- {
- SkASSERT(n > 0 && count >= n);
- memcpy(dstC, src, n << 2);
- count -= n;
- if (count == 0)
- break;
- dstC += n;
- src = row;
- n = SkMin32(width, count);
- }
-}
-
-///////////////////////////////////////////////////////////////////////////
-
-#define NOFILTER_BITMAP_SHADER_CLASS Index8_NoFilter_RepeatTile_BitmapShader
-#define NOFILTER_BITMAP_SHADER_TILEMODE SkShader::kRepeat_TileMode
-#define NOFILTER_BITMAP_SHADER_TILEPROC(x, max) (fixed_repeat(x) * (max + 1) >> 16)
-#define NOFILTER_BITMAP_SHADER_TYPE uint8_t
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X(p, x) colors32[p[x]]
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY(p, x, y, rb) colors32[p[x + y * rb]]
-#define NOFILTER_BITMAP_SHADER_PREAMBLE(bitmap, rb) const SkPMColor* colors32 = bitmap.getColorTable()->lockColors()
-#define NOFILTER_BITMAP_SHADER_POSTAMBLE(bitmap) bitmap.getColorTable()->unlockColors(false)
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X16(p, x) colors16[p[x]]
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY16(p, x, y, rb) colors16[p[x + y * rb]]
-#define NOFILTER_BITMAP_SHADER_PREAMBLE16(bitmap, rb) const uint16_t* colors16 = bitmap.getColorTable()->lock16BitCache()
-#define NOFILTER_BITMAP_SHADER_POSTAMBLE16(bitmap) bitmap.getColorTable()->unlock16BitCache()
-#define NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC16 Index8_RepeatTile_Sprite16
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC32 Index8_RepeatTile_Sprite32
-#include "SkBitmapShaderTemplate.h"
-
-#define NOFILTER_BITMAP_SHADER_CLASS U16_NoFilter_RepeatTile_BitmapShader
-#define NOFILTER_BITMAP_SHADER_TILEMODE SkShader::kRepeat_TileMode
-#define NOFILTER_BITMAP_SHADER_TILEPROC(x, max) (fixed_repeat(x) * (max + 1) >> 16)
-#define NOFILTER_BITMAP_SHADER_TYPE uint16_t
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X(p, x) SkPixel16ToPixel32(p[x])
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY(p, x, y, rb) SkPixel16ToPixel32(*(const uint16_t*)((const char*)p + y * rb + (x << 1)))
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X16(p, x) p[x]
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY16(p, x, y, rb) *(const uint16_t*)((const char*)p + y * rb + (x << 1))
-#define NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC16 RGB16_RepeatTile_Sprite16
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC32 RGB16_RepeatTile_Sprite32
-#include "SkBitmapShaderTemplate.h"
-
-#define NOFILTER_BITMAP_SHADER_CLASS U32_NoFilter_RepeatTile_BitmapShader
-#define NOFILTER_BITMAP_SHADER_TILEMODE SkShader::kRepeat_TileMode
-#define NOFILTER_BITMAP_SHADER_TILEPROC(x, max) (fixed_repeat(x) * (max + 1) >> 16)
-#define NOFILTER_BITMAP_SHADER_TYPE uint32_t
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X(p, x) p[x]
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY(p, x, y, rb) *(const uint32_t*)((const char*)p + y * rb + (x << 2))
-#define NOFILTER_BITMAP_SHADER_SAMPLE_X16(p, x) SkPixel32ToPixel16_ToU16(p[x])
-#define NOFILTER_BITMAP_SHADER_SAMPLE_XY16(p, x, y, rb) SkPixel32ToPixel16_ToU16(*(const uint32_t*)((const char*)p + y * rb + (x << 2)))
-#define NOFILTER_BITMAP_SHADER_USE_UNITINVERSE
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC16 ARGB32_RepeatTile_Sprite16
-#define NOFILTER_BITMAP_SHADER_SPRITEPROC32 ARGB32_RepeatTile_Sprite32
-#include "SkBitmapShaderTemplate.h"
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////
-
-static inline SkPMColor expanded_rgb16_to_8888(uint32_t c, U8CPU alpha)
-{
-// GGGG Gggg gggR RRRR rrrr r|BB BBBb bbbb
- SkASSERT(alpha <= 255);
-
-#if 1
- int scale = SkAlpha255To256(alpha);
- int r = (c & 0xF800) * scale >> 16;
- int g = ((c >> 21) & 0x3F) * scale >> 6;
- int b = (c & 0x1F) * scale >> 5;
- return SkPackARGB32(alpha, r, g, b);
-#else
- int scale = SkAlpha255To256(alpha) >> 3;
- c &= 0x07E0F81F;
- c = c * scale;
- int r = (c >> 13) & 0xFF;
- int g = (c >> 24) & 0xFF;
- int b = (c >> 2) & 0xFF;
- return SkPackARGB32(alpha, r, g, b);
-#endif
-}
-
-#define BILERP_BITMAP16_SHADER_CLASS U16_Bilerp_BitmapShader
-#define BILERP_BITMAP16_SHADER_TYPE uint16_t
-#define BILERP_BITMAP16_SHADER_PREAMBLE(bm)
-#define BILERP_BITMAP16_SHADER_PIXEL(c) (c)
-#define BILERP_BITMAP16_SHADER_POSTAMBLE(bm)
-#include "SkBitmapShader16BilerpTemplate.h"
-
-#define BILERP_BITMAP16_SHADER_CLASS Index8_Bilerp_BitmapShader
-#define BILERP_BITMAP16_SHADER_TYPE uint8_t
-#define BILERP_BITMAP16_SHADER_PREAMBLE(bm) SkColorTable* ctable = (bm).getColorTable(); const uint16_t* colors16 = ctable->lock16BitCache()
-#define BILERP_BITMAP16_SHADER_PIXEL(c) colors16[c]
-#define BILERP_BITMAP16_SHADER_POSTAMBLE(bm) ctable->unlock16BitCache()
-#include "SkBitmapShader16BilerpTemplate.h"
-
-#include "ARGB32_Clamp_Bilinear_BitmapShader.h"
-
-///////////////////////////////////////////////////////////////////////////
-///////////////////////////////////////////////////////////////////////////
-
-#include "SkBitmapProcShader.h"
-
-///////////////////////////////////////////////////////////////////////////
-///////////////////////////////////////////////////////////////////////////
-
-#include "SkTemplatesPriv.h"
-
-SkShader* SkShader::CreateBitmapShader(const SkBitmap& src,
- bool doFilter,
- TileMode tmx, TileMode tmy,
- void* storage, size_t storageSize)
-{
-#if 1
-
- SkShader* shader;
- SK_PLACEMENT_NEW_ARGS(shader, SkBitmapProcShader, storage,
- storageSize, (src, doFilter, tmx, tmy));
- return shader;
-#else
-
- if (!doFilter)
- {
- if (kClamp_TileMode == tmx && kClamp_TileMode == tmy)
- {
- SK_PLACEMENT_NEW_ARGS(shader, SkBitmapProcShader, storage,
- storageSize, (src, doFilter, tmx, tmy));
- }
- else if (kRepeat_TileMode == tmx && kRepeat_TileMode == tmy)
- {
- #if 1
- SK_PLACEMENT_NEW_ARGS(shader, SkBitmapProcShader, storage,
- storageSize, (src, doFilter, tmx, tmy));
- #else
- switch (src.getConfig()) {
- case SkBitmap::kIndex8_Config:
- SK_PLACEMENT_NEW_ARGS(shader, Index8_NoFilter_RepeatTile_BitmapShader, storage, storageSize, (src));
- break;
- case SkBitmap::kRGB_565_Config:
- SK_PLACEMENT_NEW_ARGS(shader, U16_NoFilter_RepeatTile_BitmapShader, storage, storageSize, (src));
- break;
- case SkBitmap::kARGB_8888_Config:
- SK_PLACEMENT_NEW_ARGS(shader, U32_NoFilter_RepeatTile_BitmapShader, storage, storageSize, (src));
- break;
- default:
- break;
- }
- #endif
- }
- }
- else if (kClamp_TileMode == tmx && kClamp_TileMode == tmy)
- {
-#if 1
- if (SkBitmapProcShader::CanDo(src, tmx, tmy))
- {
- SK_PLACEMENT_NEW_ARGS(shader, SkBitmapProcShader, storage,
- storageSize, (src, doFilter, tmx, tmy));
- }
-#else
- switch (src.getConfig()) {
- case SkBitmap::kIndex8_Config:
- if (src.isOpaque())
- SK_PLACEMENT_NEW_ARGS(shader, Index8_Bilerp_BitmapShader, storage, storageSize, (src));
- break;
- case SkBitmap::kRGB_565_Config:
- SK_PLACEMENT_NEW_ARGS(shader, U16_Bilerp_BitmapShader, storage, storageSize, (src));
- break;
- case SkBitmap::kARGB_8888_Config:
- SK_PLACEMENT_NEW_ARGS(shader, ARGB32_Clamp_Bilinear_BitmapShader, storage, storageSize, (src));
- break;
- default:
- break;
- }
-#endif
- }
-
- // if shader is null, then none of the special cases could handle the request
- // so fall through to our slow-general case
- if (shader == NULL)
- SK_PLACEMENT_NEW_ARGS(shader, Sampler_BitmapShader, storage, storageSize,
- (src, doFilter, tmx, tmy));
- return shader;
-#endif
-}
-
-SkShader* SkShader::CreateBitmapShader(const SkBitmap& src, bool doFilter,
- TileMode tmx, TileMode tmy)
-{
- return SkShader::CreateBitmapShader(src, doFilter, tmx, tmy, NULL, 0);
-}
-
-#endif
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