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Diffstat (limited to 'pixman/pixman/pixman-combine64.h')
-rw-r--r--pixman/pixman/pixman-combine64.h257
1 files changed, 127 insertions, 130 deletions
diff --git a/pixman/pixman/pixman-combine64.h b/pixman/pixman/pixman-combine64.h
index e5ecef3a1..bb222a4d7 100644
--- a/pixman/pixman/pixman-combine64.h
+++ b/pixman/pixman/pixman-combine64.h
@@ -47,19 +47,56 @@
*/
/*
+ * x_rb = (x_rb * a) / 255
+ */
+#define UN16_rb_MUL_UN16(x, a, t) \
+ do \
+ { \
+ t = ((x) & RB_MASK) * (a); \
+ t += RB_ONE_HALF; \
+ x = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
+ x &= RB_MASK; \
+ } while (0)
+
+/*
+ * x_rb = min (x_rb + y_rb, 255)
+ */
+#define UN16_rb_ADD_UN16_rb(x, y, t) \
+ do \
+ { \
+ t = ((x) + (y)); \
+ t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
+ x = (t & RB_MASK); \
+ } while (0)
+
+/*
+ * x_rb = (x_rb * a_rb) / 255
+ */
+#define UN16_rb_MUL_UN16_rb(x, a, t) \
+ do \
+ { \
+ t = (x & MASK) * (a & MASK); \
+ t |= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \
+ t += RB_ONE_HALF; \
+ t = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
+ x = t & RB_MASK; \
+ } while (0)
+
+/*
* x_c = (x_c * a) / 255
*/
#define UN16x4_MUL_UN16(x, a) \
do \
{ \
- uint64_t t = ((x & RB_MASK) * a) + RB_ONE_HALF; \
- t = (t + ((t >> COMPONENT_SIZE) & RB_MASK)) >> COMPONENT_SIZE; \
- t &= RB_MASK; \
- \
- x = (((x >> COMPONENT_SIZE) & RB_MASK) * a) + RB_ONE_HALF; \
- x = (x + ((x >> COMPONENT_SIZE) & RB_MASK)); \
- x &= RB_MASK << COMPONENT_SIZE; \
- x += t; \
+ uint64_t r1, r2, t; \
+ \
+ r1 = (x); \
+ UN16_rb_MUL_UN16 (r1, a, t); \
+ \
+ r2 = (x) >> G_SHIFT; \
+ UN16_rb_MUL_UN16 (r2, a, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -68,33 +105,19 @@
#define UN16x4_MUL_UN16_ADD_UN16x4(x, a, y) \
do \
{ \
- /* multiply and divide: trunc((i + 128)*257/65536) */ \
- uint64_t t = ((x & RB_MASK) * a) + RB_ONE_HALF; \
- t = (t + ((t >> COMPONENT_SIZE) & RB_MASK)) >> COMPONENT_SIZE; \
- t &= RB_MASK; \
- \
- /* add */ \
- t += y & RB_MASK; \
- \
- /* saturate */ \
- t |= RB_MASK_PLUS_ONE - ((t >> COMPONENT_SIZE) & RB_MASK); \
- t &= RB_MASK; \
- \
- /* multiply and divide */ \
- x = (((x >> COMPONENT_SIZE) & RB_MASK) * a) + RB_ONE_HALF; \
- x = (x + ((x >> COMPONENT_SIZE) & RB_MASK)) >> COMPONENT_SIZE; \
- x &= RB_MASK; \
- \
- /* add */ \
- x += (y >> COMPONENT_SIZE) & RB_MASK; \
- \
- /* saturate */ \
- x |= RB_MASK_PLUS_ONE - ((x >> COMPONENT_SIZE) & RB_MASK); \
- x &= RB_MASK; \
- \
- /* recombine */ \
- x <<= COMPONENT_SIZE; \
- x += t; \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = (x); \
+ r2 = (y) & RB_MASK; \
+ UN16_rb_MUL_UN16 (r1, a, t); \
+ UN16_rb_ADD_UN16_rb (r1, r2, t); \
+ \
+ r2 = (x) >> G_SHIFT; \
+ r3 = ((y) >> G_SHIFT) & RB_MASK; \
+ UN16_rb_MUL_UN16 (r2, a, t); \
+ UN16_rb_ADD_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -103,32 +126,21 @@
#define UN16x4_MUL_UN16_ADD_UN16x4_MUL_UN16(x, a, y, b) \
do \
{ \
- uint64_t t; \
- uint64_t r = (x >> A_SHIFT) * a + (y >> A_SHIFT) * b + ONE_HALF; \
- r += (r >> G_SHIFT); \
- r >>= G_SHIFT; \
- \
- t = (x & G_MASK) * a + (y & G_MASK) * b; \
- t += (t >> G_SHIFT) + (ONE_HALF << G_SHIFT); \
- t >>= R_SHIFT; \
- \
- t |= r << R_SHIFT; \
- t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
- t &= RB_MASK; \
- t <<= G_SHIFT; \
- \
- r = ((x >> R_SHIFT) & MASK) * a + \
- ((y >> R_SHIFT) & MASK) * b + ONE_HALF; \
- r += (r >> G_SHIFT); \
- r >>= G_SHIFT; \
- \
- x = (x & MASK) * a + (y & MASK) * b + ONE_HALF; \
- x += (x >> G_SHIFT); \
- x >>= G_SHIFT; \
- x |= r << R_SHIFT; \
- x |= RB_MASK_PLUS_ONE - ((x >> G_SHIFT) & RB_MASK); \
- x &= RB_MASK; \
- x |= t; \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = x; \
+ r2 = y; \
+ UN16_rb_MUL_UN16 (r1, a, t); \
+ UN16_rb_MUL_UN16 (r2, b, t); \
+ UN16_rb_ADD_UN16_rb (r1, r2, t); \
+ \
+ r2 = (x >> G_SHIFT); \
+ r3 = (y >> G_SHIFT); \
+ UN16_rb_MUL_UN16 (r2, a, t); \
+ UN16_rb_MUL_UN16 (r3, b, t); \
+ UN16_rb_ADD_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -137,19 +149,17 @@
#define UN16x4_MUL_UN16x4(x, a) \
do \
{ \
- uint64_t t; \
- uint64_t r = (x & MASK) * (a & MASK); \
- r |= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \
- r += RB_ONE_HALF; \
- r = (r + ((r >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
- r &= RB_MASK; \
- \
- x >>= G_SHIFT; \
- t = (x & MASK) * ((a >> G_SHIFT) & MASK); \
- t |= (x & R_MASK) * (a >> A_SHIFT); \
- t += RB_ONE_HALF; \
- t = t + ((t >> G_SHIFT) & RB_MASK); \
- x = r | (t & AG_MASK); \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = x; \
+ r2 = a; \
+ UN16_rb_MUL_UN16_rb (r1, r2, t); \
+ \
+ r2 = x >> G_SHIFT; \
+ r3 = a >> G_SHIFT; \
+ UN16_rb_MUL_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -158,26 +168,21 @@
#define UN16x4_MUL_UN16x4_ADD_UN16x4(x, a, y) \
do \
{ \
- uint64_t t; \
- uint64_t r = (x & MASK) * (a & MASK); \
- r |= (x & R_MASK) * ((a >> R_SHIFT) & MASK); \
- r += RB_ONE_HALF; \
- r = (r + ((r >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
- r &= RB_MASK; \
- r += y & RB_MASK; \
- r |= RB_MASK_PLUS_ONE - ((r >> G_SHIFT) & RB_MASK); \
- r &= RB_MASK; \
- \
- x >>= G_SHIFT; \
- t = (x & MASK) * ((a >> G_SHIFT) & MASK); \
- t |= (x & R_MASK) * (a >> A_SHIFT); \
- t += RB_ONE_HALF; \
- t = (t + ((t >> G_SHIFT) & RB_MASK)) >> G_SHIFT; \
- t &= RB_MASK; \
- t += (y >> G_SHIFT) & RB_MASK; \
- t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
- t &= RB_MASK; \
- x = r | (t << G_SHIFT); \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = x; \
+ r2 = a; \
+ UN16_rb_MUL_UN16_rb (r1, r2, t); \
+ r2 = y & RB_MASK; \
+ UN16_rb_ADD_UN16_rb (r1, r2, t); \
+ \
+ r2 = (x >> G_SHIFT); \
+ r3 = (a >> G_SHIFT); \
+ UN16_rb_MUL_UN16_rb (r2, r3, t); \
+ r3 = (y >> G_SHIFT) & RB_MASK; \
+ UN16_rb_ADD_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -186,33 +191,23 @@
#define UN16x4_MUL_UN16x4_ADD_UN16x4_MUL_UN16(x, a, y, b) \
do \
{ \
- uint64_t t; \
- uint64_t r = (x >> A_SHIFT) * (a >> A_SHIFT) + \
- (y >> A_SHIFT) * b; \
- r += (r >> G_SHIFT) + ONE_HALF; \
- r >>= G_SHIFT; \
- \
- t = (x & G_MASK) * ((a >> G_SHIFT) & MASK) + (y & G_MASK) * b; \
- t += (t >> G_SHIFT) + (ONE_HALF << G_SHIFT); \
- t >>= R_SHIFT; \
- \
- t |= r << R_SHIFT; \
- t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
- t &= RB_MASK; \
- t <<= G_SHIFT; \
- \
- r = ((x >> R_SHIFT) & MASK) * ((a >> R_SHIFT) & MASK) + \
- ((y >> R_SHIFT) & MASK) * b + ONE_HALF; \
- r += (r >> G_SHIFT); \
- r >>= G_SHIFT; \
- \
- x = (x & MASK) * (a & MASK) + (y & MASK) * b + ONE_HALF; \
- x += (x >> G_SHIFT); \
- x >>= G_SHIFT; \
- x |= r << R_SHIFT; \
- x |= RB_MASK_PLUS_ONE - ((x >> G_SHIFT) & RB_MASK); \
- x &= RB_MASK; \
- x |= t; \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = x; \
+ r2 = a; \
+ UN16_rb_MUL_UN16_rb (r1, r2, t); \
+ r2 = y; \
+ UN16_rb_MUL_UN16 (r2, b, t); \
+ UN16_rb_ADD_UN16_rb (r1, r2, t); \
+ \
+ r2 = x >> G_SHIFT; \
+ r3 = a >> G_SHIFT; \
+ UN16_rb_MUL_UN16_rb (r2, r3, t); \
+ r3 = y >> G_SHIFT; \
+ UN16_rb_MUL_UN16 (r3, b, t); \
+ UN16_rb_ADD_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
/*
@@ -221,13 +216,15 @@
#define UN16x4_ADD_UN16x4(x, y) \
do \
{ \
- uint64_t t; \
- uint64_t r = (x & RB_MASK) + (y & RB_MASK); \
- r |= RB_MASK_PLUS_ONE - ((r >> G_SHIFT) & RB_MASK); \
- r &= RB_MASK; \
- \
- t = ((x >> G_SHIFT) & RB_MASK) + ((y >> G_SHIFT) & RB_MASK); \
- t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
- r |= (t & RB_MASK) << G_SHIFT; \
- x = r; \
+ uint64_t r1, r2, r3, t; \
+ \
+ r1 = x & RB_MASK; \
+ r2 = y & RB_MASK; \
+ UN16_rb_ADD_UN16_rb (r1, r2, t); \
+ \
+ r2 = (x >> G_SHIFT) & RB_MASK; \
+ r3 = (y >> G_SHIFT) & RB_MASK; \
+ UN16_rb_ADD_UN16_rb (r2, r3, t); \
+ \
+ x = r1 | (r2 << G_SHIFT); \
} while (0)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 21:53:12 +0000