ab9fd1840b
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27926 a1c6a512-1295-4272-9138-f99709370657
114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
#include "zxvid_com.h"
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#ifndef USE_GREY
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/* screen routines for greyscale targets not using greyscale lib */
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#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
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#define FB_WIDTH ((LCD_WIDTH+3)/4)
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fb_data pixmask[4] ICONST_ATTR = {
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0xC0, 0x30, 0x0C, 0x03
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};
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#elif LCD_PIXELFORMAT == VERTICAL_PACKING
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fb_data pixmask[4] ICONST_ATTR = {
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0x03, 0x0C, 0x30, 0xC0
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};
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#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
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fb_data pixmask[8] ICONST_ATTR = {
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0x0101, 0x0202, 0x0404, 0x0808, 0x1010, 0x2020, 0x4040, 0x8080
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};
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fb_data pixval[4] ICONST_ATTR = {
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0x0000, 0x0001, 0x0100, 0x0101
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};
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#endif
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static const unsigned char graylevels[16] = {
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0, 1, 1, 1, 2, 2, 3, 3,
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0, 1, 1, 1, 2, 2, 3, 3
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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 ? 0 : 3;
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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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fb_data *frameb;
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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 mask;
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#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
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for(y = 0; y < LCD_HEIGHT; y++)
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{
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frameb = rb->lcd_framebuffer + (y) * FB_WIDTH;
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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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mask = ~pixmask[x & 3];
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frameb[x >> 2] = (frameb[x >> 2] & mask) | ((image[(srcx>>16)]&0x3) << ((3-(x & 3 )) * 2 ));
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srcx += X_STEP; /* move through source image */
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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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#elif LCD_PIXELFORMAT == VERTICAL_PACKING
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int shift;
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for(y = 0; y < LCD_HEIGHT; y++)
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{
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frameb = rb->lcd_framebuffer + (y/4) * LCD_WIDTH;
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srcx = 0; /* reset our x counter before each row... */
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shift = ((y & 3 ) * 2 );
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mask = ~pixmask[y & 3];
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for(x = 0; x < LCD_WIDTH; x++)
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{
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frameb[x] = (frameb[x] & mask) | ((image[(srcx>>16)]&0x3) << shift );
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srcx += X_STEP; /* move through source image */
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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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#elif LCD_PIXELFORMAT == VERTICAL_INTERLEAVED
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int shift;
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for(y = 0; y < LCD_HEIGHT; y++)
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{
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frameb = rb->lcd_framebuffer + (y/8) * LCD_WIDTH;
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srcx = 0; /* reset our x counter before each row... */
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shift = (y & 7);
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mask = ~pixmask[y & 7];
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for(x = 0; x < LCD_WIDTH; x++)
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{
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frameb[x] = (frameb[x] & mask) | (pixval[image[(srcx>>16)]&0x3] << shift );
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srcx += X_STEP; /* move through source image */
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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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#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->lcd_putsxyf(0,0,"%d %%",percent);
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}
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rb -> lcd_update();
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}
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#endif /* !USE_GREY */
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