bf6e0cd9d1
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20621 a1c6a512-1295-4272-9138-f99709370657
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
#include "zxvid_com.h"
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#ifdef USE_GREY
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#define N0 0x00
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#define N1 0xC0
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#define B0 0x00
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#define B1 0xFF
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static unsigned char graybuffer[LCD_HEIGHT*LCD_WIDTH] IBSS_ATTR; /* off screen buffer */
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static const unsigned char graylevels[16] = {
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N0, (6*N0+1*N1)/7, (5*N0+2*N1)/7, (4*N0+3*N1)/7,
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(3*N0+4*N1)/7, (2*N0+5*N1)/7, (1*N0+6*N1)/7, N1,
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B0, (6*B0+1*B1)/7, (5*B0+2*B1)/7, (4*B0+3*B1)/7,
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(3*B0+4*B1)/7, (2*B0+5*B1)/7, (1*B0+6*B1)/7, B1
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};
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void init_spect_scr(void)
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{
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int i;
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unsigned mask = settings.invert_colors ? 0xFF : 0;
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for(i = 0; i < 16; i++)
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sp_colors[i] = graylevels[i] ^ mask;
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sp_image = (char *) &image_array;
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spscr_init_mask_color();
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spscr_init_line_pointers(HEIGHT);
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}
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void update_screen(void)
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{
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char str[80];
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int y=0;
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int x=0;
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unsigned char* image;
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int srcx, srcy=0; /* x / y coordinates in source image */
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image = sp_image + ( (Y_OFF)*(WIDTH) ) + X_OFF;
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unsigned char* buf_ptr;
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buf_ptr = graybuffer;
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for(y = 0; y < LCD_HEIGHT; y++)
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{
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srcx = 0; /* reset our x counter before each row... */
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for(x = 0; x < LCD_WIDTH; x++)
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{
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*buf_ptr=image[(srcx>>16)];
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srcx += X_STEP; /* move through source image */
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buf_ptr++;
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}
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srcy += Y_STEP; /* move through the source image... */
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image += (srcy>>16)*WIDTH; /* and possibly to the next row. */
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srcy &= 0xffff; /* set up the y-coordinate between 0 and 1 */
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}
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#ifdef USE_BUFFERED_GREY
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grey_gray_bitmap(graybuffer, 0, 0, LCD_WIDTH, LCD_HEIGHT);
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#endif
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if ( settings.showfps ) {
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int percent=0;
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int TPF = HZ/50;/* ticks per frame */
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if ((*rb->current_tick-start_time) > TPF )
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percent = 100*video_frames/((*rb->current_tick-start_time)/TPF);
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rb->snprintf(str,sizeof(str),"%d %%",percent);
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#if defined USE_BUFFERED_GREY
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grey_putsxy(0,0,str);
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#else
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LOGF(str);
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#endif
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}
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#if defined USE_BUFFERED_GREY
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grey_update();
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#else
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grey_ub_gray_bitmap(graybuffer, 0, 0, LCD_WIDTH, LCD_HEIGHT);
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#endif
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}
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#endif /* USE_GREY */
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