diff options
author | Dalai Felinto <dfelinto@gmail.com> | 2014-04-26 04:34:00 +0400 |
---|---|---|
committer | Dalai Felinto <dfelinto@gmail.com> | 2014-05-03 03:56:16 +0400 |
commit | 3312b20ac8c8a5e45d87c5c1f59ce0907350d398 (patch) | |
tree | dad21102570f80f4545e084febc2d736b80ea23e /source | |
parent | 56d8affe422a0e20037ee94c7d0d12747bbbb81d (diff) |
IMB buffer functions to take a mask as input
The mask make sure the conversion only happens in a few areas of the
buffer.
New Functions:
* IMB_buffer_byte_from_float_mask
* IMB_buffer_float_from_float_mask
The functions are an adaptation of their maskless counterparts without accepting different profiles for the input and output buffers.
Review: Sergey Sharybin
Diffstat (limited to 'source')
-rw-r--r-- | source/blender/imbuf/IMB_imbuf.h | 5 | ||||
-rw-r--r-- | source/blender/imbuf/intern/divers.c | 122 |
2 files changed, 127 insertions, 0 deletions
diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h index 6e21db0e039..090e7a66d41 100644 --- a/source/blender/imbuf/IMB_imbuf.h +++ b/source/blender/imbuf/IMB_imbuf.h @@ -389,12 +389,17 @@ void IMB_saturation(struct ImBuf *ibuf, float sat); void IMB_buffer_byte_from_float(unsigned char *rect_to, const float *rect_from, int channels_from, float dither, int profile_to, int profile_from, bool predivide, int width, int height, int stride_to, int stride_from); +void IMB_buffer_byte_from_float_mask(unsigned char *rect_to, const float *rect_from, + int channels_from, float dither, bool predivide, + int width, int height, int stride_to, int stride_from, char *mask); void IMB_buffer_float_from_byte(float *rect_to, const unsigned char *rect_from, int profile_to, int profile_from, bool predivide, int width, int height, int stride_to, int stride_from); void IMB_buffer_float_from_float(float *rect_to, const float *rect_from, int channels_from, int profile_to, int profile_from, bool predivide, int width, int height, int stride_to, int stride_from); +void IMB_buffer_float_from_float_mask(float *rect_to, const float *rect_from, + int channels_from, int width, int height, int stride_to, int stride_from, char *mask); void IMB_buffer_byte_from_byte(unsigned char *rect_to, const unsigned char *rect_from, int profile_to, int profile_from, bool predivide, int width, int height, int stride_to, int stride_from); diff --git a/source/blender/imbuf/intern/divers.c b/source/blender/imbuf/intern/divers.c index 8f14205ac6b..9975c58bdd2 100644 --- a/source/blender/imbuf/intern/divers.c +++ b/source/blender/imbuf/intern/divers.c @@ -326,6 +326,84 @@ void IMB_buffer_byte_from_float(uchar *rect_to, const float *rect_from, clear_dither_context(di); } + +/* float to byte pixels, output 4-channel RGBA */ +void IMB_buffer_byte_from_float_mask(uchar *rect_to, const float *rect_from, + int channels_from, float dither, bool predivide, + int width, int height, int stride_to, int stride_from, char *mask) +{ + int x, y; + DitherContext *di = NULL; + float inv_width = 1.0f / width, + inv_height = 1.0f / height; + + if (dither) + di = create_dither_context(dither); + + for (y = 0; y < height; y++) { + float t = y * inv_height; + + if (channels_from == 1) { + /* single channel input */ + const float *from = rect_from + stride_from * y; + uchar *to = rect_to + stride_to * y * 4; + + for (x = 0; x < width; x++, from++, to += 4) + if (*mask++ == FILTER_MASK_USED) + to[0] = to[1] = to[2] = to[3] = FTOCHAR(from[0]); + } + else if (channels_from == 3) { + /* RGB input */ + const float *from = rect_from + stride_from * y * 3; + uchar *to = rect_to + stride_to * y * 4; + + for (x = 0; x < width; x++, from += 3, to += 4) { + if (*mask++ == FILTER_MASK_USED) { + rgb_float_to_uchar(to, from); + to[3] = 255; + } + } + } + else if (channels_from == 4) { + /* RGBA input */ + const float *from = rect_from + stride_from * y * 4; + uchar *to = rect_to + stride_to * y * 4; + + float straight[4]; + + if (dither && predivide) { + for (x = 0; x < width; x++, from += 4, to += 4) { + if (*mask++ == FILTER_MASK_USED) { + premul_to_straight_v4_v4(straight, from); + float_to_byte_dither_v4(to, straight, di, (float) x * inv_width, t); + } + } + } + else if (dither) { + for (x = 0; x < width; x++, from += 4, to += 4) + if (*mask++ == FILTER_MASK_USED) + float_to_byte_dither_v4(to, from, di, (float) x * inv_width, t); + } + else if (predivide) { + for (x = 0; x < width; x++, from += 4, to += 4) { + if (*mask++ == FILTER_MASK_USED) { + premul_to_straight_v4_v4(straight, from); + rgba_float_to_uchar(to, straight); + } + } + } + else { + for (x = 0; x < width; x++, from += 4, to += 4) + if (*mask++ == FILTER_MASK_USED) + rgba_float_to_uchar(to, from); + } + } + } + + if (dither) + clear_dither_context(di); +} + /* byte to float pixels, input and output 4-channel RGBA */ void IMB_buffer_float_from_byte(float *rect_to, const uchar *rect_from, int profile_to, int profile_from, bool predivide, @@ -465,6 +543,50 @@ void IMB_buffer_float_from_float(float *rect_to, const float *rect_from, } } +/* float to float pixels, output 4-channel RGBA */ +void IMB_buffer_float_from_float_mask(float *rect_to, const float *rect_from, int channels_from, + int width, int height, int stride_to, int stride_from, char *mask) +{ + int x, y; + + if (channels_from == 1) { + /* single channel input */ + for (y = 0; y < height; y++) { + const float *from = rect_from + stride_from * y; + float *to = rect_to + stride_to * y * 4; + + for (x = 0; x < width; x++, from++, to += 4) + if (*mask++ == FILTER_MASK_USED) + to[0] = to[1] = to[2] = to[3] = from[0]; + } + } + else if (channels_from == 3) { + /* RGB input */ + for (y = 0; y < height; y++) { + const float *from = rect_from + stride_from * y * 3; + float *to = rect_to + stride_to * y * 4; + + for (x = 0; x < width; x++, from += 3, to += 4) { + if (*mask++ == FILTER_MASK_USED) { + copy_v3_v3(to, from); + to[3] = 1.0f; + } + } + } + } + else if (channels_from == 4) { + /* RGBA input */ + for (y = 0; y < height; y++) { + const float *from = rect_from + stride_from * y * 4; + float *to = rect_to + stride_to * y * 4; + + for (x = 0; x < width; x++, from += 4, to += 4) + if (*mask++ == FILTER_MASK_USED) + copy_v4_v4(to, from); + } + } +} + /* byte to byte pixels, input and output 4-channel RGBA */ void IMB_buffer_byte_from_byte(uchar *rect_to, const uchar *rect_from, int profile_to, int profile_from, bool predivide, |