diff options
Diffstat (limited to 'pixman/pixman/combine.h.inc')
| -rw-r--r-- | pixman/pixman/combine.h.inc | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/pixman/pixman/combine.h.inc b/pixman/pixman/combine.h.inc deleted file mode 100644 index 8c70cb78d..000000000 --- a/pixman/pixman/combine.h.inc +++ /dev/null @@ -1,227 +0,0 @@ - -#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) - |