accelerants/radeon/ProposeDisplayMode.c

19 // standard mode list
89 /* 16:10 panel mode; 2.304M pixels */
134 	Validate a target display mode is both
135 		a) a valid display mode for this device and
138 	If the mode is not (or cannot) be made valid for this device, return B_ERROR.
139 	If a valid mode can be constructed, but it does not fall within the limits,
141 	If the mode is both valid AND falls within the limits, return B_OK.
165 	// don't use floating point, we are in kernel mode
398 		SHOW_ERROR( 4, "not enough memory for this mode (could show only %d of %d lines)",
435 // if given mode is possible on this card, add it to standard mode list
436 //	mode - mode to add (colourspace is ignored but replaced
438 //	ignore_timing - don't care if timing has to be modified to make mode valid
440 static void checkAndAddMode( accelerator_info *ai, const display_mode *mode, bool ignore_timing )
449 		// for fp modes: don't add mode if its resolution is already in official mode list
451 			if( ai->mode_list[i].timing.h_display == mode->timing.h_display &&
452 				ai->mode_list[i].timing.v_display == mode->timing.v_display &&
453 				ai->mode_list[i].virtual_width == mode->virtual_width &&
454 				ai->mode_list[i].virtual_height == mode->virtual_height )
460 	low = high = *mode;
487 		*dst = *mode;
498 			*dst = *mode;
514 // add display mode including span mode variations to offical list
515 static void checkAndAddMultiMode( accelerator_info *ai, const display_mode *mode,
520 	SHOW_FLOW( 4, "%ld, %ld", mode->virtual_width, mode->virtual_height );
522 	// plain mode
523 	checkAndAddMode( ai, mode, ignore_timing );
525 	// double width mode
526 	wide_mode = *mode;
531 	// double height mode
532 	wide_mode = *mode;
538 // add display mode of flat panel to official list
546     	display_mode mode;
548 		mode.virtual_width = mode.timing.h_display = fp_info->panel_xres;
549 		mode.virtual_height = mode.timing.v_display = fp_info->panel_yres;
551 		mode.timing.h_total = mode.timing.h_display + fp_info->h_blank;
552 		mode.timing.h_sync_start = mode.timing.h_display + fp_info->h_over_plus;
553 		mode.timing.h_sync_end = mode.timing.h_sync_start + fp_info->h_sync_width;
554 		mode.timing.v_total = mode.timing.v_display + fp_info->v_blank;
555 		mode.timing.v_sync_start = mode.timing.v_display + fp_info->v_over_plus;
556 		mode.timing.v_sync_end = mode.timing.v_sync_start + fp_info->v_sync_width;
558 		mode.timing.pixel_clock = fp_info->dot_clock;
562 		// if it's wrong, we just want this resolution in the mode list)
563 		if( mode.timing.pixel_clock == 0 ) {
565 			mode.timing.pixel_clock =
566 				((uint32)mode.timing.h_total * mode.timing.v_total * 60) / 1000;
569 		mode.flags = MODE_FLAGS;
570 		mode.h_display_start = 0;
571 		mode.v_display_start = 0;
574 			mode.timing.h_display, mode.timing.h_sync_start,
575 			mode.timing.h_sync_end, mode.timing.h_total, mode.virtual_width );
577 			mode.timing.v_display, mode.timing.v_sync_start,
578 			mode.timing.v_sync_end, mode.timing.v_total, mode.virtual_height );
579 		SHOW_FLOW( 2, "clk: %ld", mode.timing.pixel_clock );
583 		// the mode can (and usually has to) be modified to be
585 		checkAndAddMultiMode( ai, &mode, true );
602 	si->mode_list_area = create_area("Radeon accelerant mode info",
615 	// plus fp mode
642 	// check how many heads are needed by target mode
646 	// before checking multi-monitor mode, we must define a monitor signal routing
654 	// transform to multi-screen mode first
667 	// we must assure that each ProposeMode call doesn't tweak the mode in
676 		// if both ports are used, make sure both can handle mode