diff options
author | Campbell Barton <ideasman42@gmail.com> | 2012-08-16 18:47:14 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2012-08-16 18:47:14 +0400 |
commit | 81dd80f1d3da6db3227abafe431ac0e92c4e7197 (patch) | |
tree | 6130beb4db65bb8bf7bc5872ce565d4de9e45e16 /source/blender/editors/space_image | |
parent | 6fb4bbdbd963eb0f9626d6bd784b22c65bd5cd44 (diff) |
support fro HDR color picking (values over 1.0) when color picking in the image editor or node space.
Diffstat (limited to 'source/blender/editors/space_image')
-rw-r--r-- | source/blender/editors/space_image/image_ops.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/source/blender/editors/space_image/image_ops.c b/source/blender/editors/space_image/image_ops.c index b2a9584b243..30480bd095f 100644 --- a/source/blender/editors/space_image/image_ops.c +++ b/source/blender/editors/space_image/image_ops.c @@ -1948,6 +1948,54 @@ static void image_sample_draw(const bContext *UNUSED(C), ARegion *ar, void *arg_ } } +/* returns color in SRGB */ +/* matching ED_space_node_color_sample() */ +int ED_space_image_color_sample(SpaceImage *sima, ARegion *ar, int mval[2], float r_col[3]) +{ + void *lock; + ImBuf *ibuf = ED_space_image_acquire_buffer(sima, &lock); + float fx, fy; + int ret = FALSE; + + if (ibuf == NULL) { + ED_space_image_release_buffer(sima, lock); + return FALSE; + } + + UI_view2d_region_to_view(&ar->v2d, mval[0], mval[1], &fx, &fy); + + if (fx >= 0.0f && fy >= 0.0f && fx < 1.0f && fy < 1.0f) { + float *fp; + unsigned char *cp; + int x = (int)(fx * ibuf->x), y = (int)(fy * ibuf->y); + + CLAMP(x, 0, ibuf->x - 1); + CLAMP(y, 0, ibuf->y - 1); + + if (ibuf->rect_float) { + fp = (ibuf->rect_float + (ibuf->channels) * (y * ibuf->x + x)); + + if (ibuf->profile == IB_PROFILE_LINEAR_RGB) { + linearrgb_to_srgb_v3_v3(r_col, fp); + } + else { + copy_v3_v3(r_col, fp); + } + ret = TRUE; + } + else if (ibuf->rect) { + cp = (unsigned char *)(ibuf->rect + y * ibuf->x + x); + r_col[0] = cp[0] / 255.0f; + r_col[1] = cp[1] / 255.0f; + r_col[2] = cp[2] / 255.0f; + ret = TRUE; + } + } + + ED_space_image_release_buffer(sima, lock); + return ret; +} + static void image_sample_apply(bContext *C, wmOperator *op, wmEvent *event) { SpaceImage *sima = CTX_wm_space_image(C); |