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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /pixman/pixman/combine.h.inc
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'pixman/pixman/combine.h.inc')
-rw-r--r--pixman/pixman/combine.h.inc227
1 files changed, 227 insertions, 0 deletions
diff --git a/pixman/pixman/combine.h.inc b/pixman/pixman/combine.h.inc
new file mode 100644
index 000000000..8c70cb78d
--- /dev/null
+++ b/pixman/pixman/combine.h.inc
@@ -0,0 +1,227 @@
+
+#define COMPONENT_SIZE
+#define MASK
+#define ONE_HALF
+
+#define G_SHIFT
+#define B_SHIFT
+#define A_SHIFT
+#define G_MASK
+#define B_MASK
+#define A_MASK
+
+#define RB_MASK
+#define AG_MASK
+#define RB_ONE_HALF
+#define RB_MASK_PLUS_ONE
+
+#define Alpha(x) ((x) >> A_SHIFT)
+
+/*
+ * Helper macros.
+ */
+
+#define IntMult(a,b,t) ( (t) = (a) * (b) + ONE_HALF, ( ( ( (t)>>G_SHIFT ) + (t) )>>G_SHIFT ) )
+#define IntDiv(a,b) (((comp2_t) (a) * MASK) / (b))
+
+#define GetComp(v,i) ((comp2_t) (comp1_t) ((v) >> i))
+
+#define Add(x,y,i,t) ((t) = GetComp(x,i) + GetComp(y,i), \
+ (comp4_t) ((comp1_t) ((t) | (0 - ((t) >> G_SHIFT)))) << (i))
+
+#define FbGen(x,y,i,ax,ay,t,u,v) ((t) = (IntMult(GetComp(y,i),ay,(u)) + \
+ IntMult(GetComp(x,i),ax,(v))), \
+ (comp4_t) ((comp1_t) ((t) | \
+ (0 - ((t) >> G_SHIFT)))) << (i))
+
+/*
+ The methods below use some tricks to be able to do two color
+ components at the same time.
+*/
+
+/*
+ x_c = (x_c * a) / 255
+*/
+#define FbByteMul(x, a) do { \
+ comp4_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; \
+ } while (0)
+
+/*
+ x_c = (x_c * a) / 255 + y
+*/
+#define FbByteMulAdd(x, a, y) do { \
+ /* multiply and divide: trunc((i + 128)*257/65536) */ \
+ comp4_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; \
+ } while (0)
+
+/*
+ x_c = (x_c * a + y_c * b) / 255
+*/
+#define FbByteAddMul(x, a, y, b) do { \
+ comp4_t t; \
+ comp4_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 >>= B_SHIFT; \
+ \
+ t |= r << B_SHIFT; \
+ t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
+ t &= RB_MASK; \
+ t <<= G_SHIFT; \
+ \
+ r = ((x >> B_SHIFT) & MASK) * a + \
+ ((y >> B_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 << B_SHIFT; \
+ x |= RB_MASK_PLUS_ONE - ((x >> G_SHIFT) & RB_MASK); \
+ x &= RB_MASK; \
+ x |= t; \
+ } while (0)
+
+/*
+ x_c = (x_c * a + y_c *b) / 256
+*/
+#define FbByteAddMul_256(x, a, y, b) do { \
+ comp4_t t = (x & RB_MASK) * a + (y & RB_MASK) * b; \
+ t >>= G_SHIFT; \
+ t &= RB_MASK; \
+ \
+ x = ((x >> G_SHIFT) & RB_MASK) * a + \
+ ((y >> G_SHIFT) & RB_MASK) * b; \
+ x &= AG_MASK; \
+ x += t; \
+ } while (0)
+
+/*
+ x_c = (x_c * a_c) / 255
+*/
+#define FbByteMulC(x, a) do { \
+ comp4_t t; \
+ comp4_t r = (x & MASK) * (a & MASK); \
+ r |= (x & B_MASK) * ((a >> B_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 & B_MASK) * (a >> A_SHIFT); \
+ t += RB_ONE_HALF; \
+ t = t + ((t >> G_SHIFT) & RB_MASK); \
+ x = r | (t & AG_MASK); \
+ } while (0)
+
+/*
+ x_c = (x_c * a) / 255 + y
+*/
+#define FbByteMulAddC(x, a, y) do { \
+ comp4_t t; \
+ comp4_t r = (x & MASK) * (a & MASK); \
+ r |= (x & B_MASK) * ((a >> B_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 & B_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); \
+ } while (0)
+
+/*
+ x_c = (x_c * a_c + y_c * b) / 255
+*/
+#define FbByteAddMulC(x, a, y, b) do { \
+ comp4_t t; \
+ comp4_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 >>= B_SHIFT; \
+ \
+ t |= r << B_SHIFT; \
+ t |= RB_MASK_PLUS_ONE - ((t >> G_SHIFT) & RB_MASK); \
+ t &= RB_MASK; \
+ t <<= G_SHIFT; \
+ \
+ r = ((x >> B_SHIFT) & MASK) * ((a >> B_SHIFT) & MASK) + \
+ ((y >> B_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 << B_SHIFT; \
+ x |= RB_MASK_PLUS_ONE - ((x >> G_SHIFT) & RB_MASK); \
+ x &= RB_MASK; \
+ x |= t; \
+ } while (0)
+
+/*
+ x_c = min(x_c + y_c, 255)
+*/
+#define FbByteAdd(x, y) do { \
+ comp4_t t; \
+ comp4_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; \
+ } while (0)
+
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