grab from latest android
git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkBitmapProcState_sample.h b/src/core/SkBitmapProcState_sample.h
new file mode 100644
index 0000000..122ccf8
--- /dev/null
+++ b/src/core/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