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| author | Omar Rizwan <omar@omar.website> | 2023-09-11 21:41:43 +0000 |
|---|---|---|
| committer | Omar Rizwan <omar@omar.website> | 2023-09-11 21:41:43 +0000 |
| commit | b9e5187c1bbf267f0ec4fc899ce926cb2167247f (patch) | |
| tree | 58e487b6239ed9b6ffe06b1fa4adbcddb0c3b6bb /virtual-programs | |
| parent | WIP: Images starting to work! Need to fix RGBA and coords (diff) | |
| download | folk-b9e5187c1bbf267f0ec4fc899ce926cb2167247f.tar.gz folk-b9e5187c1bbf267f0ec4fc899ce926cb2167247f.zip | |
WIP: Images starting to work
Diffstat (limited to 'virtual-programs')
| -rw-r--r-- | virtual-programs/images.folk | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/virtual-programs/images.folk b/virtual-programs/images.folk index e9807b85..8af24aee 100644 --- a/virtual-programs/images.folk +++ b/virtual-programs/images.folk @@ -160,6 +160,27 @@ namespace eval ::image { // TODO: Free the JPEG. // ckfree(im.data); } + $cc proc rechannel {image_t im int components} image_t { + if (im.components == components) return im; + if (components != 4 || im.components != 3) exit(2); + + image_t ret = im; + ret.components = components; + ret.bytesPerRow = ret.width * ret.components; + ret.data = folkHeapAlloc(ret.bytesPerRow * ret.height); + + for(int i = 0; i < ret.width*ret.height; i++) { + int r = im.data[i*im.components+0], + g = im.data[i*im.components+1], + b = im.data[i*im.components+2]; + + ret.data[i*ret.components+0] = r; + ret.data[i*ret.components+1] = g; + ret.data[i*ret.components+2] = b; + ret.data[i*ret.components+3] = 255; + } + return ret; + } $cc compile variable imagesCache [dict create] |