[Pixman] [PATCH 3/3] Move bilinear interpolation to pixman-inlines.h
Søren Sandmann
sandmann at cs.au.dk
Mon Aug 15 10:25:18 PDT 2011
From: Søren Sandmann Pedersen <ssp at redhat.com>
---
pixman/pixman-bits-image.c | 91 --------------------------------------------
pixman/pixman-inlines.h | 91 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 91 insertions(+), 91 deletions(-)
diff --git a/pixman/pixman-bits-image.c b/pixman/pixman-bits-image.c
index caa581f..f540c76 100644
--- a/pixman/pixman-bits-image.c
+++ b/pixman/pixman-bits-image.c
@@ -113,97 +113,6 @@ bits_image_fetch_pixel_nearest (bits_image_t *image,
}
}
-#if SIZEOF_LONG > 4
-
-static force_inline uint32_t
-bilinear_interpolation (uint32_t tl, uint32_t tr,
- uint32_t bl, uint32_t br,
- int distx, int disty)
-{
- uint64_t distxy, distxiy, distixy, distixiy;
- uint64_t tl64, tr64, bl64, br64;
- uint64_t f, r;
-
- distxy = distx * disty;
- distxiy = distx * (256 - disty);
- distixy = (256 - distx) * disty;
- distixiy = (256 - distx) * (256 - disty);
-
- /* Alpha and Blue */
- tl64 = tl & 0xff0000ff;
- tr64 = tr & 0xff0000ff;
- bl64 = bl & 0xff0000ff;
- br64 = br & 0xff0000ff;
-
- f = tl64 * distixiy + tr64 * distxiy + bl64 * distixy + br64 * distxy;
- r = f & 0x0000ff0000ff0000ull;
-
- /* Red and Green */
- tl64 = tl;
- tl64 = ((tl64 << 16) & 0x000000ff00000000ull) | (tl64 & 0x0000ff00ull);
-
- tr64 = tr;
- tr64 = ((tr64 << 16) & 0x000000ff00000000ull) | (tr64 & 0x0000ff00ull);
-
- bl64 = bl;
- bl64 = ((bl64 << 16) & 0x000000ff00000000ull) | (bl64 & 0x0000ff00ull);
-
- br64 = br;
- br64 = ((br64 << 16) & 0x000000ff00000000ull) | (br64 & 0x0000ff00ull);
-
- f = tl64 * distixiy + tr64 * distxiy + bl64 * distixy + br64 * distxy;
- r |= ((f >> 16) & 0x000000ff00000000ull) | (f & 0xff000000ull);
-
- return (uint32_t)(r >> 16);
-}
-
-#else
-
-static force_inline uint32_t
-bilinear_interpolation (uint32_t tl, uint32_t tr,
- uint32_t bl, uint32_t br,
- int distx, int disty)
-{
- int distxy, distxiy, distixy, distixiy;
- uint32_t f, r;
-
- distxy = distx * disty;
- distxiy = (distx << 8) - distxy; /* distx * (256 - disty) */
- distixy = (disty << 8) - distxy; /* disty * (256 - distx) */
- distixiy =
- 256 * 256 - (disty << 8) -
- (distx << 8) + distxy; /* (256 - distx) * (256 - disty) */
-
- /* Blue */
- r = (tl & 0x000000ff) * distixiy + (tr & 0x000000ff) * distxiy
- + (bl & 0x000000ff) * distixy + (br & 0x000000ff) * distxy;
-
- /* Green */
- f = (tl & 0x0000ff00) * distixiy + (tr & 0x0000ff00) * distxiy
- + (bl & 0x0000ff00) * distixy + (br & 0x0000ff00) * distxy;
- r |= f & 0xff000000;
-
- tl >>= 16;
- tr >>= 16;
- bl >>= 16;
- br >>= 16;
- r >>= 16;
-
- /* Red */
- f = (tl & 0x000000ff) * distixiy + (tr & 0x000000ff) * distxiy
- + (bl & 0x000000ff) * distixy + (br & 0x000000ff) * distxy;
- r |= f & 0x00ff0000;
-
- /* Alpha */
- f = (tl & 0x0000ff00) * distixiy + (tr & 0x0000ff00) * distxiy
- + (bl & 0x0000ff00) * distixy + (br & 0x0000ff00) * distxy;
- r |= f & 0xff000000;
-
- return r;
-}
-
-#endif
-
static force_inline uint32_t
bits_image_fetch_pixel_bilinear (bits_image_t *image,
pixman_fixed_t x,
diff --git a/pixman/pixman-inlines.h b/pixman/pixman-inlines.h
index 2b55c2e..f1e0cbd 100644
--- a/pixman/pixman-inlines.h
+++ b/pixman/pixman-inlines.h
@@ -81,6 +81,97 @@ repeat (pixman_repeat_t repeat, int *c, int size)
return TRUE;
}
+#if SIZEOF_LONG > 4
+
+static force_inline uint32_t
+bilinear_interpolation (uint32_t tl, uint32_t tr,
+ uint32_t bl, uint32_t br,
+ int distx, int disty)
+{
+ uint64_t distxy, distxiy, distixy, distixiy;
+ uint64_t tl64, tr64, bl64, br64;
+ uint64_t f, r;
+
+ distxy = distx * disty;
+ distxiy = distx * (256 - disty);
+ distixy = (256 - distx) * disty;
+ distixiy = (256 - distx) * (256 - disty);
+
+ /* Alpha and Blue */
+ tl64 = tl & 0xff0000ff;
+ tr64 = tr & 0xff0000ff;
+ bl64 = bl & 0xff0000ff;
+ br64 = br & 0xff0000ff;
+
+ f = tl64 * distixiy + tr64 * distxiy + bl64 * distixy + br64 * distxy;
+ r = f & 0x0000ff0000ff0000ull;
+
+ /* Red and Green */
+ tl64 = tl;
+ tl64 = ((tl64 << 16) & 0x000000ff00000000ull) | (tl64 & 0x0000ff00ull);
+
+ tr64 = tr;
+ tr64 = ((tr64 << 16) & 0x000000ff00000000ull) | (tr64 & 0x0000ff00ull);
+
+ bl64 = bl;
+ bl64 = ((bl64 << 16) & 0x000000ff00000000ull) | (bl64 & 0x0000ff00ull);
+
+ br64 = br;
+ br64 = ((br64 << 16) & 0x000000ff00000000ull) | (br64 & 0x0000ff00ull);
+
+ f = tl64 * distixiy + tr64 * distxiy + bl64 * distixy + br64 * distxy;
+ r |= ((f >> 16) & 0x000000ff00000000ull) | (f & 0xff000000ull);
+
+ return (uint32_t)(r >> 16);
+}
+
+#else
+
+static force_inline uint32_t
+bilinear_interpolation (uint32_t tl, uint32_t tr,
+ uint32_t bl, uint32_t br,
+ int distx, int disty)
+{
+ int distxy, distxiy, distixy, distixiy;
+ uint32_t f, r;
+
+ distxy = distx * disty;
+ distxiy = (distx << 8) - distxy; /* distx * (256 - disty) */
+ distixy = (disty << 8) - distxy; /* disty * (256 - distx) */
+ distixiy =
+ 256 * 256 - (disty << 8) -
+ (distx << 8) + distxy; /* (256 - distx) * (256 - disty) */
+
+ /* Blue */
+ r = (tl & 0x000000ff) * distixiy + (tr & 0x000000ff) * distxiy
+ + (bl & 0x000000ff) * distixy + (br & 0x000000ff) * distxy;
+
+ /* Green */
+ f = (tl & 0x0000ff00) * distixiy + (tr & 0x0000ff00) * distxiy
+ + (bl & 0x0000ff00) * distixy + (br & 0x0000ff00) * distxy;
+ r |= f & 0xff000000;
+
+ tl >>= 16;
+ tr >>= 16;
+ bl >>= 16;
+ br >>= 16;
+ r >>= 16;
+
+ /* Red */
+ f = (tl & 0x000000ff) * distixiy + (tr & 0x000000ff) * distxiy
+ + (bl & 0x000000ff) * distixy + (br & 0x000000ff) * distxy;
+ r |= f & 0x00ff0000;
+
+ /* Alpha */
+ f = (tl & 0x0000ff00) * distixiy + (tr & 0x0000ff00) * distxiy
+ + (bl & 0x0000ff00) * distixy + (br & 0x0000ff00) * distxy;
+ r |= f & 0xff000000;
+
+ return r;
+}
+
+#endif
+
/*
* For each scanline fetched from source image with PAD repeat:
* - calculate how many pixels need to be padded on the left side
--
1.7.4
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