accelerants/radeon/ProposeDisplayMode.c

134 	Validate a target display mode is both
145 	general_pll_info *pll, display_mode *target,
158 	SHOW_FLOW( 4, "X %d, virtX %d", target->timing.h_display,  target->virtual_width);
161 	if (target->timing.h_total * target->timing.v_total == 0)
167 		(((uint64)target->timing.pixel_clock * 1000) << FIX_SHIFT) /
168 		((uint64)target->timing.h_total * target->timing.v_total);
170 	want_same_width = target->timing.h_display == target->virtual_width;
171 	want_same_height = target->timing.v_display == target->virtual_height;
173 	if( !Radeon_GetFormat( target->space, &format, &bpp ))
180 		if( target->timing.h_display > flatpanel->panel_xres )
181 			target->timing.h_display = flatpanel->panel_xres;
183 		if(	target->timing.v_display > flatpanel->panel_yres )
184 			target->timing.v_display = flatpanel->panel_yres;
193 		if( ( target->timing.h_display != flatpanel->panel_xres ) ||
194 			( target->timing.v_display != flatpanel->panel_yres ) )
201 		if( target->timing.h_display > 1024 )
202 			target->timing.h_display = 1024;
204 		if(	target->timing.v_display > 768 )
205 			target->timing.v_display = 768;
213 		h_display = target->timing.h_display;
215 		h_sync_start = target->timing.h_sync_start;
216 		h_sync_wid = target->timing.h_sync_end - target->timing.h_sync_start;
217 		h_total = target->timing.h_total;
262 		target->timing.h_display = h_display;
263 		target->timing.h_sync_start = h_sync_start;
264 		target->timing.h_sync_end = h_sync_start + h_sync_wid;
265 		target->timing.h_total = h_total;
269 	if( target->timing.h_display < low->timing.h_display ||
270 		target->timing.h_display > high->timing.h_display ||
271 		target->timing.h_sync_start < low->timing.h_sync_start ||
272 		target->timing.h_sync_start > high->timing.h_sync_start ||
273 		target->timing.h_sync_end < low->timing.h_sync_end ||
274 		target->timing.h_sync_end > high->timing.h_sync_end ||
275 		target->timing.h_total < low->timing.h_total ||
276 		target->timing.h_total > high->timing.h_total)
286 		v_display = target->timing.v_display;
287 		v_sync_start = target->timing.v_sync_start;
288 		v_sync_wid = target->timing.v_sync_end - target->timing.v_sync_start;
289 		v_total = target->timing.v_total;
323 		target->timing.v_display = v_display;
324 		target->timing.v_sync_start = v_sync_start;
325 		target->timing.v_sync_end = v_sync_start + v_sync_wid;
326 		target->timing.v_total = v_total;
330 	if(	target->timing.v_display < low->timing.v_display ||
331 		target->timing.v_display > high->timing.v_display ||
332 		target->timing.v_sync_start < low->timing.v_sync_start ||
333 		target->timing.v_sync_start > high->timing.v_sync_start ||
334 		target->timing.v_sync_end < low->timing.v_sync_end ||
335 		target->timing.v_sync_end > high->timing.v_sync_end ||
336 		target->timing.v_total < low->timing.v_total ||
337 		target->timing.v_total > high->timing.v_total )
344 	target->timing.pixel_clock =
345 		((uint64)target_refresh / 1000 * target->timing.h_total * target->timing.v_total + FIX_SCALE / 2)
349 	if( target->timing.pixel_clock / 10 > pll->max_pll_freq ||
350 		target->timing.pixel_clock / 10 * 12 < pll->min_pll_freq )
352 		SHOW_ERROR( 4, "pixel_clock (%ld) out of range (%d, %d)", target->timing.pixel_clock,
359 	if ((target->timing.h_display > target->virtual_width) || want_same_width)
360 		target->virtual_width = target->timing.h_display;
361 	if ((target->timing.v_display > target->virtual_height) || want_same_height)
362 		target->virtual_height = target->timing.v_display;
368 	if (target->virtual_width > 1024*8)
369 		target->virtual_width = 1024*8;
371 	if (target->virtual_width < low->virtual_width ||
372 		target->virtual_width > high->virtual_width )
380 	eff_virtual_width = Radeon_RoundVWidth( target->virtual_height, bpp );
393 	if ((row_bytes * target->virtual_height) > si->memory[mt_local].size - 1024 )
394 		target->virtual_height = (si->memory[mt_local].size - 1024) / row_bytes;
397 	if (target->virtual_height < target->timing.v_display) {
399 			target->virtual_height, target->timing.v_display );
403 	if (target->virtual_height < low->virtual_height ||
404 		target->virtual_height > high->virtual_height )
627 PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low,
638 	result = Radeon_CheckMultiMonTunnel( vc, target, low, high, &isTunneled );
642 	// check how many heads are needed by target mode
643 	tmp_target = *target;
655 	Radeon_DetectMultiMode( vc, target );
656 	Radeon_VerifyMultiMode( vc, si, target );
660 		target->timing.h_display, target->timing.h_sync_start,
661 		target->timing.h_sync_end, target->timing.h_total, target->virtual_width );
663 		target->timing.v_display, target->timing.v_sync_start,
664 		target->timing.v_sync_end, target->timing.v_total, target->virtual_height );
665 	SHOW_FLOW( 2, "clk: %ld", target->timing.pixel_clock );
670 		&si->pll, target, low, high );
675 	if( Radeon_NeedsSecondPort( target )) {
678 			&si->pll, target, low, high );
688 		target->timing.h_display, target->timing.h_sync_start,
689 		target->timing.h_sync_end, target->timing.h_total, target->virtual_width );
691 		target->timing.v_display, target->timing.v_sync_start,
692 		target->timing.v_sync_end, target->timing.v_total, target->virtual_height );
693 	SHOW_INFO( 2, "clk: %ld", target->timing.pixel_clock );
695 	Radeon_HideMultiMode( vc, target );