81 lines
1.2 KiB
C
81 lines
1.2 KiB
C
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//
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// Loads in 32-bit RGBA uncompressed TGAs.
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//
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#ifndef _TGA_
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#define _TGA_
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//
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// The format of a TGA pixel.
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//
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typedef struct
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{
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UBYTE blue;
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UBYTE green;
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UBYTE red;
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UBYTE alpha;
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} TGA_Pixel;
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//
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// Info describing the tga.
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//
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#define TGA_FLAG_CONTAINS_ALPHA (1 << 0)
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#define TGA_FLAG_ONE_BIT_ALPHA (1 << 1) // Alpha is only 255 or 0
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#define TGA_FLAG_GRAYSCALE (1 << 2) // For all pixels r == g == b.
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typedef struct
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{
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SLONG valid;
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SLONG width;
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SLONG height;
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ULONG flag;
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} TGA_Info;
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//
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// If the width and height of the tga exceed the maximums, then the tga is not loaded.
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//
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TGA_Info TGA_load(
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const CBYTE *file,
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SLONG max_width,
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SLONG max_height,
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TGA_Pixel *data);
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//
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// Saves out a tga.
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//
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void TGA_save(
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const CBYTE *file,
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SLONG width,
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SLONG height,
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TGA_Pixel *data,
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SLONG contains_alpha); // FALSE => Save without the alpha data.
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//
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// Returns the colour of the given pixel.
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//
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#define TGA_COLOUR_DONTKNOW 0
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#define TGA_COLOUR_BLACK 1
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#define TGA_COLOUR_GREEN 2
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#define TGA_COLOUR_BROWN 3
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#define TGA_COLOUR_WHITE 4
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#define TGA_COLOUR_RED 5
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#define TGA_COLOUR_GREY 6
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SLONG TGA_colour(TGA_Pixel tp);
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#endif
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