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Started to code the front end base layer modules.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5550 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
2012-02-25 15:08:38 +00:00
parent 7cda476c08
commit 364eb07a59
7 changed files with 552 additions and 2 deletions
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src/sp65/bitmap.h Normal file
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/*****************************************************************************/
/* */
/* bitmap.h */
/* */
/* Bitmap definition for the sp65 sprite and bitmap utility */
/* */
/* */
/* */
/* (C) 2012, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef BITMAP_H
#define BITMAP_H
/* common */
#include "strbuf.h"
/* sp65 */
#include "palette.h"
#include "pixel.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Safety limit for the size of the bitmap in pixels */
#define BM_MAX_SIZE 4194304UL
/* Bitmap type */
typedef enum BitmapType BitmapType;
enum BitmapType {
bmUnknown,
bmMonochrome,
bmIndexed,
bmRGB,
bmRGBA
};
/* Bitmap structure */
typedef struct Bitmap Bitmap;
struct Bitmap {
/* Type of the bitmap */
BitmapType Type;
/* Name of the bitmap. This is used for error messages and should be
* something that allows the user to identify which bitmap the message
* refers to. For bitmaps loaded from a file, using the file name is
* a good idea.
*/
StrBuf Name;
/* Size of the bitmap */
unsigned Width;
unsigned Height;
/* Palette for monochrome and indexed bitmap types, otherwise NULL */
Palette* Pal;
/* Pixel data, dynamically allocated */
Pixel Data[1];
};
/*****************************************************************************/
/* Code */
/*****************************************************************************/
Bitmap* NewBitmap (unsigned Width, unsigned Height);
/* Create a new bitmap. The type is set to unknown and the palette to NULL */
void FreeBitmap (Bitmap* B);
/* Free a dynamically allocated bitmap */
Color GetPixelColor (const Bitmap* B, unsigned X, unsigned Y);
/* Get the color for a given pixel. For indexed bitmaps, the palette entry
* is returned.
*/
Pixel GetPixel (const Bitmap* B, unsigned X, unsigned Y);
/* Return a pixel from the bitmap. The returned value may either be a color
* or a palette index, depending on the type of the bitmap.
*/
/* End of bitmap.h */
#endif