Revert of use templates instead of macros to build blitters (https://codereview.chromium.org/120633004/)

Reason for revert:
Broke build.

Original issue's description:
> use templates instead of macros to build blitters
>
> BUG=
>
> Committed: http://code.google.com/p/skia/source/detail?r=14178

R=mtklein@google.com, reed@google.com
TBR=mtklein@google.com, reed@google.com
NOTREECHECKS=true
NOTRY=true
BUG=

Author: bungeman@google.com

Review URL: https://codereview.chromium.org/236593006

git-svn-id: http://skia.googlecode.com/svn/trunk@14180 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 138 insertions, 0 deletions

diff --git a/src/core/SkBitmapProcState_matrix.h b/src/core/SkBitmapProcState_matrix.h
index b71c3c3b75..d796d0b04c 100644
--- a/src/core/SkBitmapProcState_matrix.h
+++ b/src/core/SkBitmapProcState_matrix.h
@@ -9,8 +9,11 @@
 #include "SkMath.h"
 #include "SkMathPriv.h"
 
+#define SCALE_NOFILTER_NAME     MAKENAME(_nofilter_scale)
 #define SCALE_FILTER_NAME       MAKENAME(_filter_scale)
+#define AFFINE_NOFILTER_NAME    MAKENAME(_nofilter_affine)
 #define AFFINE_FILTER_NAME      MAKENAME(_filter_affine)
+#define PERSP_NOFILTER_NAME     MAKENAME(_nofilter_persp)
 #define PERSP_FILTER_NAME       MAKENAME(_filter_persp)
 
 #define PACK_FILTER_X_NAME  MAKENAME(_pack_filter_x)
@@ -25,6 +28,13 @@
 #endif
 
 // declare functions externally to suppress warnings.
+void SCALE_NOFILTER_NAME(const SkBitmapProcState& s,
+                                uint32_t xy[], int count, int x, int y);
+void AFFINE_NOFILTER_NAME(const SkBitmapProcState& s,
+                                 uint32_t xy[], int count, int x, int y);
+void PERSP_NOFILTER_NAME(const SkBitmapProcState& s,
+                                uint32_t* SK_RESTRICT xy,
+                                int count, int x, int y);
 void SCALE_FILTER_NAME(const SkBitmapProcState& s,
                               uint32_t xy[], int count, int x, int y);
 void AFFINE_FILTER_NAME(const SkBitmapProcState& s,
@@ -33,6 +43,122 @@ void PERSP_FILTER_NAME(const SkBitmapProcState& s,
                               uint32_t* SK_RESTRICT xy, int count,
                               int x, int y);
 
+void SCALE_NOFILTER_NAME(const SkBitmapProcState& s,
+                                uint32_t xy[], int count, int x, int y) {
+    SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
+                             SkMatrix::kScale_Mask)) == 0);
+
+    PREAMBLE(s);
+    // we store y, x, x, x, x, x
+
+    const unsigned maxX = s.fBitmap->width() - 1;
+    SkFractionalInt fx;
+    {
+        SkPoint pt;
+        s.fInvProc(s.fInvMatrix, SkIntToScalar(x) + SK_ScalarHalf,
+                                  SkIntToScalar(y) + SK_ScalarHalf, &pt);
+        fx = SkScalarToFractionalInt(pt.fY);
+        const unsigned maxY = s.fBitmap->height() - 1;
+        *xy++ = TILEY_PROCF(SkFractionalIntToFixed(fx), maxY);
+        fx = SkScalarToFractionalInt(pt.fX);
+    }
+
+    if (0 == maxX) {
+        // all of the following X values must be 0
+        memset(xy, 0, count * sizeof(uint16_t));
+        return;
+    }
+
+    const SkFractionalInt dx = s.fInvSxFractionalInt;
+
+#ifdef CHECK_FOR_DECAL
+    if (can_truncate_to_fixed_for_decal(fx, dx, count, maxX)) {
+        decal_nofilter_scale(xy, SkFractionalIntToFixed(fx),
+                             SkFractionalIntToFixed(dx), count);
+    } else
+#endif
+    {
+        int i;
+        for (i = (count >> 2); i > 0; --i) {
+            unsigned a, b;
+            a = TILEX_PROCF(SkFractionalIntToFixed(fx), maxX); fx += dx;
+            b = TILEX_PROCF(SkFractionalIntToFixed(fx), maxX); fx += dx;
+#ifdef SK_CPU_BENDIAN
+            *xy++ = (a << 16) | b;
+#else
+            *xy++ = (b << 16) | a;
+#endif
+            a = TILEX_PROCF(SkFractionalIntToFixed(fx), maxX); fx += dx;
+            b = TILEX_PROCF(SkFractionalIntToFixed(fx), maxX); fx += dx;
+#ifdef SK_CPU_BENDIAN
+            *xy++ = (a << 16) | b;
+#else
+            *xy++ = (b << 16) | a;
+#endif
+        }
+        uint16_t* xx = (uint16_t*)xy;
+        for (i = (count & 3); i > 0; --i) {
+            *xx++ = TILEX_PROCF(SkFractionalIntToFixed(fx), maxX); fx += dx;
+        }
+    }
+}
+
+// note: we could special-case on a matrix which is skewed in X but not Y.
+// this would require a more general setup thatn SCALE does, but could use
+// SCALE's inner loop that only looks at dx
+
+void AFFINE_NOFILTER_NAME(const SkBitmapProcState& s,
+                                 uint32_t xy[], int count, int x, int y) {
+    SkASSERT(s.fInvType & SkMatrix::kAffine_Mask);
+    SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
+                             SkMatrix::kScale_Mask |
+                             SkMatrix::kAffine_Mask)) == 0);
+
+    PREAMBLE(s);
+    SkPoint srcPt;
+    s.fInvProc(s.fInvMatrix,
+               SkIntToScalar(x) + SK_ScalarHalf,
+               SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
+
+    SkFractionalInt fx = SkScalarToFractionalInt(srcPt.fX);
+    SkFractionalInt fy = SkScalarToFractionalInt(srcPt.fY);
+    SkFractionalInt dx = s.fInvSxFractionalInt;
+    SkFractionalInt dy = s.fInvKyFractionalInt;
+    int maxX = s.fBitmap->width() - 1;
+    int maxY = s.fBitmap->height() - 1;
+
+    for (int i = count; i > 0; --i) {
+        *xy++ = (TILEY_PROCF(SkFractionalIntToFixed(fy), maxY) << 16) |
+                 TILEX_PROCF(SkFractionalIntToFixed(fx), maxX);
+        fx += dx; fy += dy;
+    }
+}
+
+void PERSP_NOFILTER_NAME(const SkBitmapProcState& s,
+                                uint32_t* SK_RESTRICT xy,
+                                int count, int x, int y) {
+    SkASSERT(s.fInvType & SkMatrix::kPerspective_Mask);
+
+    PREAMBLE(s);
+    int maxX = s.fBitmap->width() - 1;
+    int maxY = s.fBitmap->height() - 1;
+
+    SkPerspIter   iter(s.fInvMatrix,
+                       SkIntToScalar(x) + SK_ScalarHalf,
+                       SkIntToScalar(y) + SK_ScalarHalf, count);
+
+    while ((count = iter.next()) != 0) {
+        const SkFixed* SK_RESTRICT srcXY = iter.getXY();
+        while (--count >= 0) {
+            *xy++ = (TILEY_PROCF(srcXY[1], maxY) << 16) |
+                     TILEX_PROCF(srcXY[0], maxX);
+            srcXY += 2;
+        }
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
 static inline uint32_t PACK_FILTER_Y_NAME(SkFixed f, unsigned max,
                                           SkFixed one PREAMBLE_PARAM_Y) {
     unsigned i = TILEY_PROCF(f, max);
@@ -144,6 +270,15 @@ void PERSP_FILTER_NAME(const SkBitmapProcState& s,
     }
 }
 
+static SkBitmapProcState::MatrixProc MAKENAME(_Procs)[] = {
+    SCALE_NOFILTER_NAME,
+    SCALE_FILTER_NAME,
+    AFFINE_NOFILTER_NAME,
+    AFFINE_FILTER_NAME,
+    PERSP_NOFILTER_NAME,
+    PERSP_FILTER_NAME
+};
+
 #undef MAKENAME
 #undef TILEX_PROCF
 #undef TILEY_PROCF
@@ -151,8 +286,11 @@ void PERSP_FILTER_NAME(const SkBitmapProcState& s,
     #undef CHECK_FOR_DECAL
 #endif
 
+#undef SCALE_NOFILTER_NAME
 #undef SCALE_FILTER_NAME
+#undef AFFINE_NOFILTER_NAME
 #undef AFFINE_FILTER_NAME
+#undef PERSP_NOFILTER_NAME
 #undef PERSP_FILTER_NAME
 
 #undef PREAMBLE