diff options
Diffstat (limited to 'source/blender/imbuf/intern/rectop.c')
| -rw-r--r-- | source/blender/imbuf/intern/rectop.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/source/blender/imbuf/intern/rectop.c b/source/blender/imbuf/intern/rectop.c index 44af7ffdb3f..db2ae3a5114 100644 --- a/source/blender/imbuf/intern/rectop.c +++ b/source/blender/imbuf/intern/rectop.c @@ -450,7 +450,7 @@ void IMB_rectblend(struct ImBuf *dbuf, struct ImBuf *sbuf, int destx, /* fill */ -void IMB_rectfill(struct ImBuf *drect, float col[4]) +void IMB_rectfill(struct ImBuf *drect, const float col[4]) { int num; @@ -482,7 +482,7 @@ void IMB_rectfill(struct ImBuf *drect, float col[4]) } -void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, float *col, int x1, int y1, int x2, int y2) +void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, const float col[4], int x1, int y1, int x2, int y2) { int i, j; float a; /* alpha */ @@ -509,6 +509,8 @@ void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, unsigned char *pixel; unsigned char chr=0, chg=0, chb=0; float fr=0, fg=0, fb=0; + + const int alphaint= FTOCHAR(a); if (a == 1.0f) { chr = FTOCHAR(col[0]); @@ -527,10 +529,13 @@ void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, pixel[0] = chr; pixel[1] = chg; pixel[2] = chb; + pixel[3] = 255; } else { + int alphatest; pixel[0] = (char)((fr + ((float)pixel[0]*aich))*255.0f); pixel[1] = (char)((fg + ((float)pixel[1]*aich))*255.0f); pixel[2] = (char)((fb + ((float)pixel[2]*aich))*255.0f); + pixel[3] = (char)((alphatest= ((int)pixel[3] + alphaint)) < 255 ? alphatest : 255); } } } @@ -546,10 +551,13 @@ void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, pixel[0] = col[0]; pixel[1] = col[1]; pixel[2] = col[2]; + pixel[3] = 1.0f; } else { + float alphatest; pixel[0] = (col[0]*a) + (pixel[0]*ai); pixel[1] = (col[1]*a) + (pixel[1]*ai); pixel[2] = (col[2]*a) + (pixel[2]*ai); + pixel[3] = (alphatest= (pixel[3] + a)) < 1.0f ? alphatest : 1.0f; } } } @@ -561,3 +569,18 @@ void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, i if (!ibuf) return; buf_rectfill_area((unsigned char *) ibuf->rect, ibuf->rect_float, ibuf->x, ibuf->y, col, x1, y1, x2, y2); } + + +void IMB_rectfill_alpha(ImBuf *ibuf, const float value) +{ + int i; + if (ibuf->rect_float) { + float *fbuf= ibuf->rect_float + 3; + for (i = ibuf->x * ibuf->y; i > 0; i--, fbuf+= 4) { *fbuf = value; } + } + else { + const unsigned char cvalue= value * 255; + unsigned char *cbuf= ((unsigned char *)ibuf->rect) + 3; + for (i = ibuf->x * ibuf->y; i > 0; i--, cbuf+= 4) { *cbuf = cvalue; } + } +} |