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42 lines
876 B
V
42 lines
876 B
V
module main
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import gg
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import sokol.gfx
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[console]
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fn main() {
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mut context := gg.new_context(
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frame_fn: frame
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width: 500
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height: 500
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)
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context.run()
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}
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fn frame(mut ctx gg.Context) {
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ctx.begin()
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id := ctx.new_streaming_image(ctx.width, ctx.height, 4, pixel_format: .rgba8)
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mut img := ctx.get_cached_image_by_idx(id)
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mut bytes := []u8{len: img.width * img.height * 4, cap: img.width * img.height * 4}
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for y in 0 .. img.height {
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for x in 0 .. img.width {
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unsafe {
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bytes[(x + img.width * y) * 4] = 100
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bytes[(x + img.width * y) * 4 + 1] = 100
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bytes[(x + img.width * y) * 4 + 2] = 100
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bytes[(x + img.width * y) * 4 + 3] = 255
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}
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}
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}
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unsafe {
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img.update_pixel_data(&bytes[0])
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}
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ctx.draw_image(0, 0, ctx.width, ctx.height, img)
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ctx.remove_cached_image_by_idx(id)
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ctx.end()
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gfx.destroy_image(img.simg)
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unsafe {
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free(&bytes[0])
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}
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}
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