devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Initial commit of zxbox - a ZX Spectrum emulator ported by Anton Romanov. It theoretically runs on all targets, but I have not included it in the Archos builds because it is just too slow to be usable.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10950 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2006-09-15 11:11:16 +00:00
parent 1350d57751
commit 05a7f14f8d
88 changed files with 19624 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

99
apps/plugins/zxbox/zxvid_16bpp.c Normal file
View file

@ -0,0 +1,99 @@
#include "zxvid_com.h"
#if LCD_DEPTH > 4
/* screen routines for color targets */
/*
use for slightly different colors
#define N0 0x04
#define N1 0x34
#define B0 0x08
#define B1 0x3F
*/
#define N0 0x00
#define N1 0xAA
#define B0 0x55
#define B1 0xFF
struct rgb norm_colors[COLORNUM]={
{0,0,0},{N0,N0,N1},{N1,N0,N0},{N1,N0,N1},
{N0,N1,N0},{N0,N1,N1},{N1,N1,N0},{N1,N1,N1},
{0x15,0x15,0x15},{B0,B0,B1},{B1,B0,B0},{B1,B0,B1},
{B0,B1,B0},{B0,B1,B1},{B1,B1,B0},{B1,B1,B1}
};
/* since emulator uses array of bytes for screen representation
* short 16b colors won't fit there */
short _16bpp_colors[16] IBSS_ATTR;
void init_spect_scr(void)
{
int i;
for(i = 0; i < 16; i++)
sp_colors[i] = i;
for(i = 0; i < 16; i++)
_16bpp_colors[i] = LCD_RGBPACK(norm_colors[i].r,norm_colors[i].g,norm_colors[i].b);
if ( settings.invert_colors ){
for ( i = 0 ; i < 16 ; i++ )
_16bpp_colors[i] = 0xFFFFFF - _16bpp_colors[i];
}
sp_image = (char *) &image_array;
spscr_init_mask_color();
spscr_init_line_pointers(HEIGHT);
}
void update_screen(void)
{
char str[80];
fb_data *frameb;
int y=0;
#if LCD_HEIGHT >= ZX_HEIGHT && LCD_WIDTH >= ZX_WIDTH
byte *scrptr;
scrptr = (byte *) SPNM(image);
frameb = rb->lcd_framebuffer;
for ( y = 0 ; y < HEIGHT*WIDTH; y++ ){
frameb[y] = _16bpp_colors[(unsigned)sp_image[y]];
}
#else
int x=0;
int srcx, srcy=0; /* x / y coordinates in source image */
unsigned char* image;
image = sp_image + ( (Y_OFF)*(WIDTH) ) + X_OFF;
frameb = rb->lcd_framebuffer;
for(y = 0; y < LCD_HEIGHT; y++)
{
srcx = 0; /* reset our x counter before each row... */
for(x = 0; x < LCD_WIDTH; x++)
{
*frameb = _16bpp_colors[image[srcx>>16]];
srcx += X_STEP; /* move through source image */
frameb++;
}
srcy += Y_STEP; /* move through the source image... */
image += (srcy>>16)*WIDTH; /* and possibly to the next row. */
srcy &= 0xffff; /* set up the y-coordinate between 0 and 1 */
}
#endif
if ( settings.showfps ) {
int percent=0;
int TPF = HZ/50;/* ticks per frame */
if ((*rb->current_tick-start_time) > TPF )
percent = 100*video_frames/((*rb->current_tick-start_time)/TPF);
rb->snprintf(str,sizeof(str),"%d %%",percent);
rb->lcd_putsxy(0,0,str);
}
rb -> lcd_update();
}
#endif /* HAVE_LCD_COLOR */