RelativePath=".\..\src\blitter\8bpp_simple.cpp">

				RelativePath=".\..\src\blitter\8bpp_simple.hpp">

				RelativePath=".\..\src\blitter\8bpp_simple.cpp"

				RelativePath=".\..\src\blitter\8bpp_simple.hpp"

blitter/8bpp_simple.cpp

blitter/8bpp_simple.hpp

#include "../stdafx.h"

#include "../zoom.hpp"

#include "../gfx.h"

#include "8bpp_simple.hpp"

static FBlitter_8bppSimple iFBlitter_8bppSimple;

void Blitter_8bppSimple::Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)

{

	const byte *src, *src_line;

	Pixel8 *dst, *dst_line;

	/* Find where to start reading in the source sprite */

	src_line = (const byte *)bp->sprite + (bp->skip_top * bp->sprite_width + bp->skip_left) * ScaleByZoom(1, zoom);

	dst_line = (Pixel8 *)bp->dst + bp->top * bp->pitch + bp->left;

	for (int y = 0; y < bp->height; y++) {

		dst = dst_line;

		dst_line += bp->pitch;

		src = src_line;

		src_line += bp->sprite_width * ScaleByZoom(1, zoom);

		for (int x = 0; x < bp->width; x++) {

			uint color = 0;

			switch (mode) {

				case BM_COLOUR_REMAP:

					color = bp->remap[*src];

					break;

				case BM_TRANSPARENT:

					if (*src != 0) color = bp->remap[*dst];

					break;

				default:

					color = *src;

					break;

			}

			if (color != 0) *dst = color;

			dst++;

			src += ScaleByZoom(1, zoom);

		}

	}

}

Sprite *Blitter_8bppSimple::Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator)

{

	Sprite *dest_sprite;

	dest_sprite = (Sprite *)allocator(sizeof(*dest_sprite) + sprite->height * sprite->width);;

	dest_sprite->height = sprite->height;

	dest_sprite->width  = sprite->width;

	dest_sprite->x_offs = sprite->x_offs;

	dest_sprite->y_offs = sprite->y_offs;

	/* Copy over only the 'remap' channel, as that is what we care about in 8bpp */

	for (int i = 0; i < sprite->height * sprite->width; i++) {

		dest_sprite->data[i] = sprite->data[i].m;

	}

	return dest_sprite;

}

/* $Id$ */

/** @file 8bpp.hpp */

#ifndef BLITTER_8BPP_SIMPLE_HPP

#define BLITTER_8BPP_SIMPLE_HPP

#include "blitter.hpp"

typedef Pixel Pixel8;

class Blitter_8bppSimple : public Blitter {

public:

	uint8 GetScreenDepth() { return 8; }

	void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);

	Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator);

};

class FBlitter_8bppSimple: public BlitterFactory<FBlitter_8bppSimple> {

public:

	/* virtual */ const char *GetName() { return "8bpp-simple"; }

	/* virtual */ const char *GetDescription() { return "8bpp Simple Blitter (relative slow, but never wrong)"; }

	/* virtual */ Blitter *CreateInstance() { return new Blitter_8bppSimple(); }

};

#endif /* BLITTER_8BPP_SIMPLE_HPP */