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libcaca-canvas.3caca

NAME

libcaca-canvas - The libcaca canvas format (version 1) All types are big endian.

 struct
 {
 magic:
    uint8_t caca_header[2];    // 'ontrol size (canvas_data - canvas_header)
    uint32_t data_size;        // Data size (EOF - canvas_data)
 
    uint16_t version;          // Canvas format version
                               //  bit 0: set to 1 if canvas is compatible
                               //         with version 1 of the format
                               //  bits 1-15: unused yet, must be 0
 
    uint32_t frames;           // Frame count
 
    uint16_t flags;            // Feature flags
                               //  bits 0-15: unused yet, must be 0
 
 frame_info:
    struct
    {
       uint32_t width;         // Frame width
       uint32_t height;        // Frame height
       uint32_t duration;      // Frame duration in milliseconds, 0 to
                               // not specify a duration
       uint32_t attr;          // Graphics context attribute
       int32_t cursor_x;       // Cursor X coordinate
       int32_t cursor_y;       // Cursor Y coordinate
       int32_t handle_x;       // Handle X coordinate
       int32_t handle_y;       // Handle Y coordinate
    }
    frame_list[frames];
 
 control_extension_1:
 control_extension_2:
    ...
 control_extension_N:
    ...                        // reserved for future use
 
 canvas_data:
    uint8_t data[data_size];   // canvas data
 
 data_extension_1:
 data_extension_2:
    ...
 data_extension_N:
    ...                        // reserved for future use
 };