diff options
Diffstat (limited to 'source/blender/blenkernel/intern/seqmodifier.c')
| -rw-r--r-- | source/blender/blenkernel/intern/seqmodifier.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/seqmodifier.c b/source/blender/blenkernel/intern/seqmodifier.c index 1787bd11298..b374fb14657 100644 --- a/source/blender/blenkernel/intern/seqmodifier.c +++ b/source/blender/blenkernel/intern/seqmodifier.c @@ -487,6 +487,71 @@ static SequenceModifierTypeInfo seqModifier_BrightContrast = { brightcontrast_apply /* apply */ }; +/* **** Mask Modifier **** */ + +static void maskmodifier_apply_threaded(int width, int height, unsigned char *rect, float *rect_float, + unsigned char *mask_rect, float *mask_rect_float, void *UNUSED(data_v)) +{ + int x, y; + + if (rect && !mask_rect) + return; + + if (rect_float && !mask_rect_float) + return; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + int pixel_index = (y * width + x) * 4; + + if (rect) { + unsigned char *pixel = rect + pixel_index; + unsigned char *mask_pixel = mask_rect + pixel_index; + unsigned char mask = min_iii(mask_pixel[0], mask_pixel[1], mask_pixel[2]); + + /* byte buffer is straight, so only affect on alpha itself, + * this is the only way to alpha-over byte strip after + * applying mask modifier. + */ + pixel[3] = (float)(pixel[3] * mask) / 255.0f; + } + else if (rect_float) { + int c; + float *pixel = rect_float + pixel_index; + float *mask_pixel = mask_rect_float + pixel_index; + float mask = min_fff(mask_pixel[0], mask_pixel[1], mask_pixel[2]); + + /* float buffers are premultiplied, so need to premul color + * as well to make it easy to alpha-over masted strip. + */ + for (c = 0; c < 4; c++) + pixel[c] = pixel[c] * mask; + } + } + } +} + +static void maskmodifier_apply(struct SequenceModifierData *smd, ImBuf *ibuf, ImBuf *mask) +{ + BrightContrastModifierData *bcmd = (BrightContrastModifierData *) smd; + BrightContrastThreadData data; + + data.bright = bcmd->bright; + data.contrast = bcmd->contrast; + + modifier_apply_threaded(ibuf, mask, maskmodifier_apply_threaded, &data); +} + +static SequenceModifierTypeInfo seqModifier_Mask = { + CTX_N_(BLF_I18NCONTEXT_ID_SEQUENCE, "Mask"), /* name */ + "SequencerMaskModifierData", /* struct_name */ + sizeof(SequencerMaskModifierData), /* struct_size */ + NULL, /* init_data */ + NULL, /* free_data */ + NULL, /* copy_data */ + maskmodifier_apply /* apply */ +}; + /*********************** Modifier functions *************************/ static void sequence_modifier_type_info_init(void) @@ -497,6 +562,7 @@ static void sequence_modifier_type_info_init(void) INIT_TYPE(Curves); INIT_TYPE(HueCorrect); INIT_TYPE(BrightContrast); + INIT_TYPE(Mask); #undef INIT_TYPE } |