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raw_surface(3) Arcan Lua API raw_surface(3) NAME raw_surface - Create a new surface using a table as input. SYNOPSIS vid raw_surface( width, height, bytes_per_pixel, input_table, out_file ) DESCRIPTION This function creates a new 'raw' surface using user-supplied values for pixel data. The internal representation is set to a compile- time system default (typically RGBA 888). If the optional out_file argument is set, a PNG image will also be stored in the APPL_TEMP namespace. Using an out_file is primarily intended as a debugging/developer feature and the actual encode/store operation is synchronous. NOTES 1 There might be a loss of precision imposed by the texture format na- tive to the system that is running. 2 width and height should be within the compile-time constraints of MAX_SURFACEW and MAX_SURFACEH , exceeding those dimensions is a terminal state transition. 3 Only acceptable bytes_per_pixel values are 1, 3 and 4. All others are terminal state transitions. 4 All input_table values will be treated as 8-bit unsigned integers. 5 input_table is expected to have exactly width height bytes_per_pixel values, starting at index 1. Any deviation is a ter- minal state transition. EXAMPLE function raw_surface0() local rtbl = {}; local ofs = 1; for row=1,64 do for col=1,64 do rtbl[ofs+0] = math.random(255); rtbl[ofs+1] = math.random(255); rtbl[ofs+2] = math.random(255); ofs = ofs + 3; end end local vid = raw_surface(64, 64, 3, rtbl); show_image(vid); end image August 2026 raw_surface(3)
NAME | SYNOPSIS | DESCRIPTION | NOTES | EXAMPLE
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