Fix the Facebook sidebar....

skia/sgl/SkBitmapProcState_matrix.h

 
+#define TRANSLATE_NOFILTER_NAME MAKENAME(_nofilter_translate)
 #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)
 #define PACK_FILTER_Y_NAME  MAKENAME(_pack_filter_y)
 
 #ifndef PREAMBLE
     #define PREAMBLE(state)
     #define PREAMBLE_PARAM_X
     #define PREAMBLE_PARAM_Y
     #define PREAMBLE_ARG_X
     #define PREAMBLE_ARG_Y
 #endif
 
+#ifndef PREAMBLE_TRANS
+    #define PREAMBLE_TRANS(state)
+#endif
+
+static void TRANSLATE_NOFILTER_NAME(const SkBitmapProcState& s,
+                                    uint32_t xy[], int count, int x, int y)
+{
+    SkASSERT((s.fInvType & ~SkMatrix::kTranslate_Mask) == 0);
+
+    PREAMBLE_TRANS(s);
+
+    x += SkScalarFloor(s.fInvMatrix->getTranslateX());
+    y += SkScalarFloor(s.fInvMatrix->getTranslateY());
+
+    *xy++ = (uint32_t)TILEY_TRANS(y, (s.fBitmap->height() - 1));
+    
+    unsigned maxX = s.fBitmap->width() - 1;
+    int i;
+    uint16_t* xx = (uint16_t*)xy;
+    for (i = (count >> 2); i > 0; --i)
+    {
+        *xx++ = (uint16_t)TILEX_TRANS(x, maxX); x++;
+        *xx++ = (uint16_t)TILEX_TRANS(x, maxX); x++;
+        *xx++ = (uint16_t)TILEX_TRANS(x, maxX); x++;
+        *xx++ = (uint16_t)TILEX_TRANS(x, maxX); x++;
+    }
+    for (i = (count & 3); i > 0; --i)
+    {
+        *xx++ = (uint16_t)TILEX_TRANS(x, maxX); x++;
+    }
+}
+
 static 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
 
     // invert x+half, y+half and convert to fixed
     SkFixed fx = s.fInvSy * y + s.fInvTyPlusHalf;
@@ skipping 204 matching lines @@
             *xy++ = PACK_FILTER_Y_NAME(srcXY[1] - (oneY >> 1), maxY,
                                        oneY PREAMBLE_ARG_Y);
             *xy++ = PACK_FILTER_X_NAME(srcXY[0] - (oneX >> 1), maxX,
                                        oneX PREAMBLE_ARG_X);
             srcXY += 2;
         } while (--count != 0);
     }
 }
 
 static SkBitmapProcState::MatrixProc MAKENAME(_Procs)[] = {
+    TRANSLATE_NOFILTER_NAME,
+    TRANSLATE_NOFILTER_NAME,    // No need to do filtering if the matrix is no
+                                // more complex than identity/translate.
     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
 #ifdef CHECK_FOR_DECAL
     #undef CHECK_FOR_DECAL
 #endif
 
+#undef TILEX_TRANS
+#undef TILEY_TRANS
+
+#undef TRANSLATE_NOFILTER_NAME
 #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
 #undef PREAMBLE_PARAM_X
 #undef PREAMBLE_PARAM_Y
 #undef PREAMBLE_ARG_X
 #undef PREAMBLE_ARG_Y
 
+#undef PREAMBLE_TRANS
+
 #undef TILEX_LOW_BITS
 #undef TILEY_LOW_BITS