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comparison src/video/xbios/SDL_xbios.c @ 1071:24470ffe8ee4

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SDL will center surface on screen for us
author Patrice Mandin <patmandin@gmail.com>
date Mon, 06 Jun 2005 16:36:18 +0000
parents fba6b67b4d60
children b0887c870403
comparison
equal deleted inserted replaced
1070:75e8378103a9 1071:24470ffe8ee4
725 SDL_Surface *surface; 725 SDL_Surface *surface;
726 726
727 surface = this->screen; 727 surface = this->screen;
728 728
729 if ((surface->format->BitsPerPixel) == 8) { 729 if ((surface->format->BitsPerPixel) == 8) {
730 void *destscr;
731 int destx;
732 int i; 730 int i;
733
734 /* Center on destination screen */
735 destscr = XBIOS_screens[XBIOS_fbnum];
736 destscr += XBIOS_pitch * ((XBIOS_height - surface->h) >> 1);
737 destx = (XBIOS_width - surface->w) >> 1;
738 destx &= ~15;
739 destscr += destx;
740 731
741 for (i=0;i<numrects;i++) { 732 for (i=0;i<numrects;i++) {
742 void *source,*destination; 733 void *source,*destination;
743 int x1,x2; 734 int x1,x2;
744 735
750 741
751 source = surface->pixels; 742 source = surface->pixels;
752 source += surface->pitch * rects[i].y; 743 source += surface->pitch * rects[i].y;
753 source += x1; 744 source += x1;
754 745
755 destination = destscr; 746 destination = XBIOS_screens[XBIOS_fbnum];
756 destination += XBIOS_pitch * rects[i].y; 747 destination += XBIOS_pitch * rects[i].y;
757 destination += x1; 748 destination += x1;
758 749
759 /* Convert chunky to planar screen */ 750 /* Convert chunky to planar screen */
760 SDL_Atari_C2pConvert( 751 SDL_Atari_C2pConvert(
761 source, 752 source, destination,
762 destination, 753 x2-x1, rects[i].h,
763 x2-x1,
764 rects[i].h,
765 XBIOS_doubleline, 754 XBIOS_doubleline,
766 surface->pitch, 755 surface->pitch, XBIOS_pitch
767 XBIOS_pitch
768 ); 756 );
769 } 757 }
770 } 758 }
771 759
772 #ifndef DEBUG_VIDEO_XBIOS 760 #ifndef DEBUG_VIDEO_XBIOS
783 } 771 }
784 772
785 static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface) 773 static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface)
786 { 774 {
787 if ((surface->format->BitsPerPixel) == 8) { 775 if ((surface->format->BitsPerPixel) == 8) {
788 void *destscr;
789 int destx;
790
791 /* Center on destination screen */
792 destscr = XBIOS_screens[XBIOS_fbnum];
793 destscr += XBIOS_pitch * ((XBIOS_height - surface->h) >> 1);
794 destx = (XBIOS_width - surface->w) >> 1;
795 destx &= ~15;
796 destscr += destx;
797
798 /* Convert chunky to planar screen */ 776 /* Convert chunky to planar screen */
799 SDL_Atari_C2pConvert( 777 SDL_Atari_C2pConvert(
800 surface->pixels, 778 surface->pixels, XBIOS_screens[XBIOS_fbnum],
801 destscr, 779 surface->w, surface->h,
802 surface->w,
803 surface->h,
804 XBIOS_doubleline, 780 XBIOS_doubleline,
805 surface->pitch, 781 surface->pitch, XBIOS_pitch
806 XBIOS_pitch
807 ); 782 );
808 } 783 }
809 784
810 #ifndef DEBUG_VIDEO_XBIOS 785 #ifndef DEBUG_VIDEO_XBIOS
811 Setscreen(-1,XBIOS_screens[XBIOS_fbnum],-1); 786 Setscreen(-1,XBIOS_screens[XBIOS_fbnum],-1);