INLINE void blitscreen_dirty0_color16_horzscale(struct osd_bitmap *bitmap)
{
unsigned short *buffer_scr = SCREEN16 + gfx_xoffset + (320*gfx_yoffset);
unsigned short *buffer_mem = ((unsigned short*)(bitmap->line[skiplines])) + skipcolumns;
int buffer_mem_offset = ((bitmap->line[1] - bitmap->line[0])>>1)-gfx_width;
int step,i;
int x,y=gfx_display_lines;
if (gfx_width>320)
{
/* Strech */
step=320/(gfx_width-320);
do {
x=320;
i=step;
do {
*buffer_scr++=*buffer_mem++;
x--;
i--;
if (!i) {
if (x) {
*buffer_scr++=mix_color16(*buffer_mem++,*buffer_mem++);
x--;
i=step-1;
}
else {
buffer_mem++;
i=step;
}
}
} while (x);
buffer_mem+=buffer_mem_offset;
y--;
} while (y);
}
else
{
/* Scale */
step=320/(320-gfx_width);
do {
x=320;
i=1;
do {
i--;
if (i) {
*buffer_scr++=*buffer_mem++;
}
else {
*buffer_scr++=mix_color16(buffer_mem[0],buffer_mem[-1]);
i=step;
}
x--;
} while (x);
buffer_mem+=buffer_mem_offset;
y--;
} while (y);
}
FLIP_VIDEO;
}
INLINE void blitscreen_dirty0_color16_horzscale(struct osd_bitmap *bitmap)
{
unsigned short *buffer_scr = SCREEN16 + gfx_xoffset + (DINGOO_SCREEN_WIDTH*gfx_yoffset);
unsigned short *buffer_mem = ((unsigned short*)(bitmap->line[skiplines])) + skipcolumns;
int buffer_mem_offset = ((bitmap->line[1] - bitmap->line[0])>>1)-gfx_width;
int step,i;
int x,y=gfx_display_lines;
if (gfx_width>DINGOO_SCREEN_WIDTH)
{
/* Scale Up */
step=DINGOO_SCREEN_WIDTH/(gfx_width-DINGOO_SCREEN_WIDTH);
do {
x=DINGOO_SCREEN_WIDTH; i=step;
do {
*buffer_scr++=*buffer_mem++;
x--; i--;
if (!i) { if (x) { *buffer_scr++=mix_color16(*buffer_mem++,*buffer_mem++); x--; i=step-1; } else { buffer_mem++; i=step; } }
} while (x);
buffer_mem+=buffer_mem_offset;
y--;
} while (y);
}
else
{
/* Scale Down */
step=DINGOO_SCREEN_WIDTH/(DINGOO_SCREEN_WIDTH-gfx_width);
do {
x=DINGOO_SCREEN_WIDTH; i=1;
do {
i--;
if (i) { *buffer_scr++=*buffer_mem++; }
else { *buffer_scr++=mix_color16(buffer_mem[0],buffer_mem[-1]); i=step; }
x--;
} while (x);
buffer_mem+=buffer_mem_offset;
y--;
} while (y);
}
FLUSH_CACHE
}
INLINE void blitscreen_dirty0_palettized16_fitscale_merge0(struct osd_bitmap *bitmap)
{
unsigned int lines=gfx_display_lines;
unsigned int columns=gfx_display_columns;
unsigned int src_width=(bitmap->line[1] - bitmap->line[0])>>1;
unsigned int dst_width=gfx_width;
unsigned short *src=((unsigned short*)(bitmap->line[skiplines])) + skipcolumns;
unsigned short *dst=SCREEN16 + gfx_xoffset + (gfx_yoffset * gfx_width);
unsigned int _iAddY =iAddY;
unsigned int _iModuloY = iModuloY;
unsigned int _iAddX = iAddX;
unsigned int _iModuloX = iModuloX;
int accumulatorY = 0;
for (unsigned int h = 0; h < lines; h++)
{
accumulatorY += _iAddY;
if (accumulatorY >= _iModuloY || h == lines - 1)
{
register unsigned int pixel = 0;
register unsigned short *dstX=dst;
register unsigned short *srcX=src;
register int accumulatorX = 0;
accumulatorY -= _iModuloY;
for (register int w = columns - 1; w >= 0; w--)
{
register unsigned int srcPixel = palette_16bit_lookup[*srcX++];
if (accumulatorX >= _iAddX)
{
srcPixel = mix_color16(pixel, srcPixel);
}
pixel = srcPixel;
accumulatorX += _iAddX;
if (accumulatorX >= _iModuloX || w == 0)
{
*dstX++ = pixel;
accumulatorX -= _iModuloX;
}
}
dst += dst_width;
}
src += src_width;
}
}
INLINE void blitscreen_dirty0_color16_halfscale(struct osd_bitmap *bitmap)
{
int x,y;
unsigned int lines=gfx_display_lines>>1;
int width=bitmap->line[1] - bitmap->line[0];
int columns=(gfx_display_columns>>1);
unsigned short *lb = ((unsigned short*)(bitmap->line[skiplines])) + skipcolumns;
unsigned short *address = SCREEN16 + (gfx_xoffset/2) + ((gfx_yoffset/2) * gfx_width);
for (y = 0; y < lines; y++)
{
for (x = 0; x < columns; x++)
{
address[x] = mix_color16(lb[(x<<1)], lb[(x<<1)+1]);
}
lb+=width;
address+=gfx_width;
}
FLUSH_CACHE
}
INLINE void blitscreen_dirty0_color16_fitscale_merge1(struct osd_bitmap *bitmap)
{
unsigned int lines=gfx_display_lines;
unsigned int columns=gfx_display_columns;
unsigned int src_width=(bitmap->line[1] - bitmap->line[0])>>1;
unsigned int dst_width=gfx_width;
unsigned short *src=((unsigned short*)(bitmap->line[skiplines])) + skipcolumns;
unsigned short *dst=SCREEN16 + gfx_xoffset + (gfx_yoffset * gfx_width);
unsigned int _iAddY =iAddY;
unsigned int _iModuloY = iModuloY;
unsigned int _iAddX = iAddX;
unsigned int _iModuloX = iModuloX;
unsigned int merge = 0;
int accumulatorY = 0;
for (unsigned int h = 0; h < lines; h++)
{
register unsigned int pixel = 0;
register unsigned short *dstX=dst;
register unsigned short *srcX=src;
register int accumulatorX = 0;
for (register int w = columns - 1; w >= 0; w--)
{
register unsigned int srcPixel = *srcX++;
if (accumulatorX >= _iAddX)
{
srcPixel = mix_color16(pixel, srcPixel);
}
pixel = srcPixel;
accumulatorX += _iAddX;
if (accumulatorX >= _iModuloX || w == 0)
{
if (merge)
{
pixel = mix_color16(*dstX, pixel);
}
*dstX = pixel;
dstX++;
accumulatorX -= _iModuloX;
}
}
accumulatorY += _iAddY;
if (accumulatorY >= _iModuloY || h == lines - 1)
{
dst += dst_width;
merge = 0;
accumulatorY -= _iModuloY;
}
else
{
merge = 1;
}
src += src_width; // Next src line
}
}
