92 lines
2.4 KiB
Lua
92 lines
2.4 KiB
Lua
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local utils = require("lua.utils")
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local imageutils = {
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ctr = 0,
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images = {}
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}
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local function make_defaults()
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-- a single white RGBA pixel
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local white_pixel = ffi.new("uint32_t[1]", 0xFFFFFFFF) -- 0xAARRGGBB = white
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-- describe the image
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local img_desc = ffi.new("sg_image_desc")
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img_desc.width = 1
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img_desc.height = 1
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img_desc.pixel_format = sg.SG_PIXELFORMAT_RGBA8
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img_desc.data.subimage[0][0].ptr = white_pixel
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img_desc.data.subimage[0][0].size = ffi.sizeof(white_pixel)
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-- create the sokol image
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imageutils.default_white_image = sg.sg_make_image(img_desc)
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end
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local function loadimage(goname, imagefilepath, tid )
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if(imagefilepath == nil) then
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print("[Image Load Error] imagefilepath is nil.")
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return nil
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end
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imagefilepath = utils.cleanstring( imagefilepath )
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local img, info, data = renderer.load_image(imagefilepath, true)
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if(info == nil) then
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print("[Image Load Error] Cannot load image: "..imagefilepath)
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return nil
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end
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local res = {
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id = tid,
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img = img,
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info = info,
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data = data,
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}
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imageutils.images[tid] = res
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return res
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end
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local function loadimagebuffer(goname, buf, bufsize, tid )
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if(buf == nil) then
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print("[Image Load Error] imagebuffer is nil.")
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return nil
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end
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local img, info, data = renderer.load_image_buffer(goname, buf, bufsize, true)
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if(info == nil) then
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print("[Image Load Error] Cannot load image buffer: "..goname)
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return nil
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end
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local res = {
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id = tid,
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img = img,
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info = info,
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data = data,
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}
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imageutils.images[tid] = res
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return res
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end
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imageutils.make_defaults = make_defaults
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imageutils.loadimage = loadimage
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imageutils.loadimagebuffer = loadimagebuffer
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return imageutils
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