diff options
Diffstat (limited to 'pixman/pixman/pixman-private.h')
| -rw-r--r-- | pixman/pixman/pixman-private.h | 62 |
1 files changed, 53 insertions, 9 deletions
diff --git a/pixman/pixman/pixman-private.h b/pixman/pixman/pixman-private.h index a25897d77..6e716c6e6 100644 --- a/pixman/pixman/pixman-private.h +++ b/pixman/pixman/pixman-private.h @@ -609,14 +609,15 @@ _pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask); #define FAST_PATH_IS_OPAQUE (1 << 13) #define FAST_PATH_NO_NORMAL_REPEAT (1 << 14) #define FAST_PATH_NO_NONE_REPEAT (1 << 15) -#define FAST_PATH_SAMPLES_COVER_CLIP (1 << 16) -#define FAST_PATH_X_UNIT_POSITIVE (1 << 17) -#define FAST_PATH_AFFINE_TRANSFORM (1 << 18) -#define FAST_PATH_Y_UNIT_ZERO (1 << 19) -#define FAST_PATH_BILINEAR_FILTER (1 << 20) -#define FAST_PATH_ROTATE_90_TRANSFORM (1 << 21) -#define FAST_PATH_ROTATE_180_TRANSFORM (1 << 22) -#define FAST_PATH_ROTATE_270_TRANSFORM (1 << 23) +#define FAST_PATH_X_UNIT_POSITIVE (1 << 16) +#define FAST_PATH_AFFINE_TRANSFORM (1 << 17) +#define FAST_PATH_Y_UNIT_ZERO (1 << 18) +#define FAST_PATH_BILINEAR_FILTER (1 << 19) +#define FAST_PATH_ROTATE_90_TRANSFORM (1 << 20) +#define FAST_PATH_ROTATE_180_TRANSFORM (1 << 21) +#define FAST_PATH_ROTATE_270_TRANSFORM (1 << 22) +#define FAST_PATH_SAMPLES_COVER_CLIP_NEAREST (1 << 23) +#define FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR (1 << 24) #define FAST_PATH_PAD_REPEAT \ (FAST_PATH_NO_NONE_REPEAT | \ @@ -652,7 +653,7 @@ _pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask); #define SOURCE_FLAGS(format) \ (FAST_PATH_STANDARD_FLAGS | \ ((PIXMAN_ ## format == PIXMAN_solid) ? \ - 0 : (FAST_PATH_SAMPLES_COVER_CLIP | FAST_PATH_ID_TRANSFORM))) + 0 : (FAST_PATH_SAMPLES_COVER_CLIP_NEAREST | FAST_PATH_NEAREST_FILTER | FAST_PATH_ID_TRANSFORM))) #define MASK_FLAGS(format, extra) \ ((PIXMAN_ ## format == PIXMAN_null) ? 0 : (SOURCE_FLAGS (format) | extra)) @@ -783,6 +784,49 @@ pixman_region16_copy_from_region32 (pixman_region16_t *dst, # define SCREEN_SHIFT_RIGHT(x,n) ((x) << (n)) #endif +static force_inline uint32_t +unorm_to_unorm (uint32_t val, int from_bits, int to_bits) +{ + uint32_t result; + + if (from_bits == 0) + return 0; + + /* Delete any extra bits */ + val &= ((1 << from_bits) - 1); + + if (from_bits >= to_bits) + return val >> (from_bits - to_bits); + + /* Start out with the high bit of val in the high bit of result. */ + result = val << (to_bits - from_bits); + + /* Copy the bits in result, doubling the number of bits each time, until + * we fill all to_bits. Unrolled manually because from_bits and to_bits + * are usually known statically, so the compiler can turn all of this + * into a few shifts. + */ +#define REPLICATE() \ + do \ + { \ + if (from_bits < to_bits) \ + { \ + result |= result >> from_bits; \ + \ + from_bits *= 2; \ + } \ + } \ + while (0) + + REPLICATE(); + REPLICATE(); + REPLICATE(); + REPLICATE(); + REPLICATE(); + + return result; +} + /* * Various debugging code */ |