gfx_color.c

Go to the documentation of this file.

/* color statement */

#include "fb_gfx.h"


/*:::::*/
int fb_GfxColor(int fg, int bg, int flags)
{
        FB_GFXCTX *context = fb_hGetContext();
        int cur;
        if (__fb_gfx->depth <= 8) {
                cur = context->fg_color | (context->bg_color << 16);
        } else if (__fb_gfx->depth == 16) {
                unsigned c = context->fg_color;
                cur = (((c & 0x001F) << 3) | ((c >> 2) & 0x7) |
                       ((c & 0x07E0) << 5) | ((c >> 1) & 0x300) |
                       ((c & 0xF800) << 8) | ((c << 3) & 0x70000) | 0xff000000);
        } else {
                cur = context->fg_color;
        }
        
        switch (__fb_gfx->mode_num) {
        
                case 1:
                        if (!(flags & FB_COLOR_BG_DEFAULT))
                                fb_GfxPalette(-(4 - (bg & 0x3)), 0, 0, 0);
                        if (!(flags & FB_COLOR_FG_DEFAULT))
                                fb_GfxPalette(0, fg, -1, -1);
                        break;
                
                case 7:
                case 8:
                case 9:
                        if (!(flags & FB_COLOR_FG_DEFAULT))
                                context->fg_color = (fg & 0xF);
                        if (!(flags & FB_COLOR_BG_DEFAULT))
                                fb_GfxPalette(0, bg, -1, -1);
                        break;
                
                default:
                        if (!(flags & FB_COLOR_FG_DEFAULT)) {
                                if (__fb_gfx->depth > 8)
                                        context->fg_color = fb_hMakeColor(__fb_gfx->bpp, fg, (fg >> 16) & 0xFF, (fg >> 8) & 0xFF, fg & 0xFF);
                                else
                                        context->fg_color = (fg & BPP_MASK(context->target_bpp));
                        }
                        if (!(flags & FB_COLOR_BG_DEFAULT)) {
                                if (__fb_gfx->depth > 8)
                                        context->bg_color = fb_hMakeColor(__fb_gfx->bpp, bg, (bg >> 16) & 0xFF, (bg >> 8) & 0xFF, bg & 0xFF);
                                else
                                        context->bg_color = (bg & BPP_MASK(context->target_bpp));
                        }
                        break;
        }

        return cur;
}