Add skia to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 207 insertions, 0 deletions

diff --git a/skia/sgl/SkBitmapProcState_sample.h b/skia/sgl/SkBitmapProcState_sample.h
new file mode 100644
index 0000000..122ccf8
--- /dev/null
+++ b/skia/sgl/SkBitmapProcState_sample.h
@@ -0,0 +1,207 @@
+
+#if DSTSIZE==32
+    #define DSTTYPE SkPMColor
+#elif DSTSIZE==16
+    #define DSTTYPE uint16_t
+#else
+    #error "need DSTSIZE to be 32 or 16"
+#endif
+
+static void MAKENAME(_nofilter_DXDY)(const SkBitmapProcState& s,
+                                     const uint32_t* SK_RESTRICT xy,
+                                     int count, DSTTYPE* SK_RESTRICT colors) {
+    SkASSERT(count > 0 && colors != NULL);
+    SkASSERT(s.fDoFilter == false);
+    SkDEBUGCODE(CHECKSTATE(s);)
+
+#ifdef PREAMBLE
+    PREAMBLE(s);
+#endif
+    const char* SK_RESTRICT srcAddr = (const char*)s.fBitmap->getPixels();
+    int i, rb = s.fBitmap->rowBytes();
+
+    uint32_t XY;
+    SRCTYPE src;
+    
+    for (i = (count >> 1); i > 0; --i) {
+        XY = *xy++;
+        SkASSERT((XY >> 16) < (unsigned)s.fBitmap->height() &&
+                 (XY & 0xFFFF) < (unsigned)s.fBitmap->width());
+        src = ((const SRCTYPE*)(srcAddr + (XY >> 16) * rb))[XY & 0xFFFF];
+        *colors++ = RETURNDST(src);
+        
+        XY = *xy++;
+        SkASSERT((XY >> 16) < (unsigned)s.fBitmap->height() &&
+                 (XY & 0xFFFF) < (unsigned)s.fBitmap->width());
+        src = ((const SRCTYPE*)(srcAddr + (XY >> 16) * rb))[XY & 0xFFFF];
+        *colors++ = RETURNDST(src);
+    }
+    if (count & 1) {
+        XY = *xy++;
+        SkASSERT((XY >> 16) < (unsigned)s.fBitmap->height() &&
+                 (XY & 0xFFFF) < (unsigned)s.fBitmap->width());
+        src = ((const SRCTYPE*)(srcAddr + (XY >> 16) * rb))[XY & 0xFFFF];
+        *colors++ = RETURNDST(src);
+    }
+
+#ifdef POSTAMBLE
+    POSTAMBLE(s);
+#endif
+}
+
+static void MAKENAME(_nofilter_DX)(const SkBitmapProcState& s,
+                                   const uint32_t* SK_RESTRICT xy,
+                                   int count, DSTTYPE* SK_RESTRICT colors) {
+    SkASSERT(count > 0 && colors != NULL);
+    SkASSERT(s.fInvType <= (SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask));
+    SkASSERT(s.fDoFilter == false);
+    SkDEBUGCODE(CHECKSTATE(s);)
+
+#ifdef PREAMBLE
+    PREAMBLE(s);
+#endif
+    const SRCTYPE* SK_RESTRICT srcAddr = (const SRCTYPE*)s.fBitmap->getPixels();
+    int i;
+
+    // bump srcAddr to the proper row, since we're told Y never changes
+    SkASSERT((unsigned)xy[0] < (unsigned)s.fBitmap->height());
+    srcAddr = (const SRCTYPE*)((const char*)srcAddr +
+                                                xy[0] * s.fBitmap->rowBytes());
+    // buffer is y32, x16, x16, x16, x16, x16
+    const uint16_t* SK_RESTRICT xx = (const uint16_t*)(xy + 1);
+    
+    SRCTYPE src;
+    
+    for (i = (count >> 2); i > 0; --i) {
+        SkASSERT(*xx < (unsigned)s.fBitmap->width());
+        src = srcAddr[*xx++]; *colors++ = RETURNDST(src);
+        
+        SkASSERT(*xx < (unsigned)s.fBitmap->width());
+        src = srcAddr[*xx++]; *colors++ = RETURNDST(src);
+        
+        SkASSERT(*xx < (unsigned)s.fBitmap->width());
+        src = srcAddr[*xx++]; *colors++ = RETURNDST(src);
+        
+        SkASSERT(*xx < (unsigned)s.fBitmap->width());
+        src = srcAddr[*xx++]; *colors++ = RETURNDST(src);
+    }
+    for (i = (count & 3); i > 0; --i) {
+        SkASSERT(*xx < (unsigned)s.fBitmap->width());
+        src = srcAddr[*xx++]; *colors++ = RETURNDST(src);
+    }
+    
+#ifdef POSTAMBLE
+    POSTAMBLE(s);
+#endif
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+static void MAKENAME(_filter_DX)(const SkBitmapProcState& s,
+                                 const uint32_t* SK_RESTRICT xy,
+                                  int count, DSTTYPE* SK_RESTRICT colors) {
+    SkASSERT(count > 0 && colors != NULL);
+    SkASSERT(s.fDoFilter);
+    SkDEBUGCODE(CHECKSTATE(s);)
+
+#ifdef PREAMBLE
+    PREAMBLE(s);
+#endif
+    const char* SK_RESTRICT srcAddr = (const char*)s.fBitmap->getPixels();
+    unsigned rb = s.fBitmap->rowBytes();
+    unsigned subY;
+    const SRCTYPE* SK_RESTRICT row0;
+    const SRCTYPE* SK_RESTRICT row1;
+
+    // setup row ptrs and update proc_table
+    {
+        uint32_t XY = *xy++;
+        unsigned y0 = XY >> 14;
+        row0 = (const SRCTYPE*)(srcAddr + (y0 >> 4) * rb);
+        row1 = (const SRCTYPE*)(srcAddr + (XY & 0x3FFF) * rb);
+        subY = y0 & 0xF;
+    }
+    
+    do {
+        uint32_t XX = *xy++;    // x0:14 | 4 | x1:14
+        unsigned x0 = XX >> 14;
+        unsigned x1 = XX & 0x3FFF;
+        unsigned subX = x0 & 0xF;        
+        x0 >>= 4;
+
+        uint32_t c = FILTER_PROC(subX, subY,
+                                 SRC_TO_FILTER(row0[x0]),
+                                 SRC_TO_FILTER(row0[x1]),
+                                 SRC_TO_FILTER(row1[x0]),
+                                 SRC_TO_FILTER(row1[x1]));
+        *colors++ = FILTER_TO_DST(c);
+
+    } while (--count != 0);
+    
+#ifdef POSTAMBLE
+    POSTAMBLE(s);
+#endif
+}
+static void MAKENAME(_filter_DXDY)(const SkBitmapProcState& s,
+                                   const uint32_t* SK_RESTRICT xy,
+                                   int count, DSTTYPE* SK_RESTRICT colors) {
+    SkASSERT(count > 0 && colors != NULL);
+    SkASSERT(s.fDoFilter);
+    SkDEBUGCODE(CHECKSTATE(s);)
+        
+#ifdef PREAMBLE
+        PREAMBLE(s);
+#endif
+    const char* SK_RESTRICT srcAddr = (const char*)s.fBitmap->getPixels();
+    int rb = s.fBitmap->rowBytes();
+    
+    do {
+        uint32_t data = *xy++;
+        unsigned y0 = data >> 14;
+        unsigned y1 = data & 0x3FFF;
+        unsigned subY = y0 & 0xF;
+        y0 >>= 4;
+        
+        data = *xy++;
+        unsigned x0 = data >> 14;
+        unsigned x1 = data & 0x3FFF;
+        unsigned subX = x0 & 0xF;
+        x0 >>= 4;
+        
+        const SRCTYPE* SK_RESTRICT row0 = (const SRCTYPE*)(srcAddr + y0 * rb);
+        const SRCTYPE* SK_RESTRICT row1 = (const SRCTYPE*)(srcAddr + y1 * rb);
+        
+        uint32_t c = FILTER_PROC(subX, subY,
+                                 SRC_TO_FILTER(row0[x0]),
+                                 SRC_TO_FILTER(row0[x1]),
+                                 SRC_TO_FILTER(row1[x0]),
+                                 SRC_TO_FILTER(row1[x1]));
+        *colors++ = FILTER_TO_DST(c);
+    } while (--count != 0);
+    
+#ifdef POSTAMBLE
+    POSTAMBLE(s);
+#endif
+}
+
+#undef MAKENAME
+#undef DSTSIZE
+#undef DSTTYPE
+#undef SRCTYPE
+#undef CHECKSTATE
+#undef RETURNDST
+#undef SRC_TO_FILTER
+#undef FILTER_TO_DST
+
+#ifdef PREAMBLE
+    #undef PREAMBLE
+#endif
+#ifdef POSTAMBLE
+    #undef POSTAMBLE
+#endif
+
+#undef FILTER_PROC_TYPE
+#undef GET_FILTER_TABLE
+#undef GET_FILTER_ROW
+#undef GET_FILTER_ROW_PROC
+#undef GET_FILTER_PROC