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

skia/images/SkCreateRLEPixelRef.cpp

-#include "SkChunkAlloc.h"
-#include "SkPackBits.h"
-#include "SkBitmap.h"
-#include "SkPixelRef.h"
-
-class RLEPixelRef : public SkPixelRef {
-public:
-    RLEPixelRef(SkBitmap::RLEPixels* rlep, SkColorTable* ctable);
-    virtual ~RLEPixelRef();
-    
-protected:
-    // overrides from SkPixelRef
-    virtual void* onLockPixels(SkColorTable**);
-    virtual void onUnlockPixels();
-    
-private:
-    SkBitmap::RLEPixels* fRLEPixels;
-    SkColorTable*        fCTable;
-};
-
-RLEPixelRef::RLEPixelRef(SkBitmap::RLEPixels* rlep, SkColorTable* ctable)
-        : SkPixelRef(NULL) {
-    fRLEPixels = rlep;  // we now own this ptr
-    fCTable = ctable;
-    ctable->safeRef();
-}
-
-RLEPixelRef::~RLEPixelRef() {
-    SkDELETE(fRLEPixels);
-    fCTable->safeUnref();
-}
-
-void* RLEPixelRef::onLockPixels(SkColorTable** ct) {
-    *ct = fCTable;
-    return fRLEPixels;
-}
-
-void RLEPixelRef::onUnlockPixels() {
-    // nothing to do
-}
-
-/////////////////////////////////////////////////////////////////////////////
-
-class ChunkRLEPixels : public SkBitmap::RLEPixels {
-public:
-    ChunkRLEPixels(int width, int height, size_t chunkSize)
-        : SkBitmap::RLEPixels(width, height), fStorage(chunkSize) {
-    }
-    
-    SkChunkAlloc fStorage;
-};
-
-SkPixelRef* SkCreateRLEPixelRef(const SkBitmap& src);
-SkPixelRef* SkCreateRLEPixelRef(const SkBitmap& src) {
-    
-    if (SkBitmap::kIndex8_Config != src.config() &&
-            SkBitmap::kA8_Config != src.config()) {
-        return NULL;
-    }
-    
-    size_t maxPacked = SkPackBits::ComputeMaxSize8(src.width());
-
-    // estimate the rle size based on the original size
-    size_t size = src.getSize() >> 3;
-    if (size < maxPacked) {
-        size = maxPacked;
-    }
-
-    ChunkRLEPixels* rlePixels = SkNEW_ARGS(ChunkRLEPixels,
-                                           (src.width(), src.height(), size));
-
-    uint8_t* dstRow = NULL;
-    size_t free = 0;
-    size_t totalPacked = 0;
-
-    for (int y = 0; y < src.height(); y++) {
-        const uint8_t* srcRow = src.getAddr8(0, y);
-        
-        if (free < maxPacked) {
-            dstRow = (uint8_t*)rlePixels->fStorage.allocThrow(size);
-            free = size;
-        }
-        size_t packedSize = SkPackBits::Pack8(srcRow, src.width(), dstRow);
-        SkASSERT(packedSize <= free);
-        rlePixels->setPackedAtY(y, dstRow);
-        
-        dstRow += packedSize;
-        free -= packedSize;
-        
-        totalPacked += packedSize;
-    }
-    
-//#ifdef SK_DEBUG
-#if 0
-    // test
-    uint8_t* buffer = new uint8_t[src.width()];
-    for (int y = 0; y < src.height(); y++) {
-        const uint8_t* srcRow = src.getAddr8(0, y);
-        SkPackBits::Unpack8(buffer, 0, src.width(), rlePixels->packedAtY(y));
-        int n = memcmp(buffer, srcRow, src.width());
-        if (n) {
-            SkDebugf("----- memcmp returned %d on line %d\n", n, y);
-        }
-        SkASSERT(n == 0);
-    }
-    delete[] buffer;
-
-    size_t totalAlloc = src.height() * sizeof(uint8_t*) + totalPacked;
-    
-    SkDebugf("--- RLE: orig [%d %d] %d, rle %d %d savings %g\n",
-             src.width(), src.height(), src.getSize(),
-             src.height() * sizeof(uint8_t*), totalPacked,
-             (float)totalAlloc / src.getSize());
-
-#endif
-
-    // transfer ownership of rlePixels to our pixelref
-    return SkNEW_ARGS(RLEPixelRef, (rlePixels, src.getColorTable()));
-}
-