CRT

gfx/video_crt_switch.c

@@ -0,0 +1,218 @@
+#include <stddef.h>
+#include <string.h>
+#include <windows.h>
+#include <stdlib.h>
+
+#include <gfx/video_driver.h>
+
+#include "video_crt_switch.h"
+
+int first_run;
+float fly_aspect;
+
+void switch_res_core(int width, int height, float hz){
+	// ben_core_hz float passed from with in void video_driver_monitor_adjust_system_rates(void) 
+		ben_core_width = width;		
+		ben_core_height = height;
+		ben_core_hz = hz;
+		check_first_run();
+		
+		if (ben_tmp_height != ben_core_height || ben_core_width != ben_tmp_width){ // detect resolution change and switch
+			screen_setup_aspect(width,height);
+		}
+		
+		if (video_driver_get_aspect_ratio() != fly_aspect){	//check aspect is correct else change
+				video_driver_set_aspect_ratio_value((float)fly_aspect);
+				ben_poke_video();
+		}
+				
+
+}
+
+void check_first_run(){		// ruin of first boot to get current display resolution  
+	if (first_run != 1){
+		orig_height = GetSystemMetrics(SM_CYSCREEN);
+		orig_width = GetSystemMetrics(SM_CXSCREEN);
+	}
+	first_run = 1;
+}
+
+void screen_setup_aspect(int width, int height){ // create correct aspect to fit video if resolution does not exist
+	switch_crt_hz();
+	/* get original resolution of core */	
+	if (width >= 1900){
+		if (height == 4){						//detect menu only
+			height = 480;
+			aspect_ratio_switch(width,height);
+		}
+		if (height < 191 && height != 144){				// for low res games to be dran at res but on a 200 eight
+			aspect_ratio_switch(width,height);
+			height = 200;
+		}	
+		if (height > 191){
+			aspect_ratio_switch(width,height);
+		}
+		if (height == 144 && set_ben_core_hz == 50){				/// for GBA doubling
+			height = 288;
+			aspect_ratio_switch(width,height);
+		}
+		if (height > 200 && height < 224){				/// for mame
+			aspect_ratio_switch(width,height);
+			ben_core_height = 224;
+		}
+		if (height > 224 && height < 240){				/// for mame
+			aspect_ratio_switch(width,height);
+			ben_core_height = 240;
+		}
+	
+		if (height > 240 && height < 255 ){								/// for mame
+			aspect_ratio_switch(width,height);
+			ben_core_height = 254;
+		}
+		if (height == 528 && set_ben_core_hz == 60){								/// for mame
+			aspect_ratio_switch(width,height);
+			ben_core_height = 480;
+		}
+	
+		if (height >= 240 && height < 255 && set_ben_core_hz == 55){
+			aspect_ratio_switch(width,height);
+			ben_core_height = 254;
+		}
+		
+	}
+	switch_res_crt(width, height);
+}
+
+void switch_res_crt(int width, int height){
+		
+	if ( height > 100){
+
+			switch_res(width, height,0);
+			ben_poke_video();
+			ben_tmp_height = ben_core_height;
+			ben_tmp_width = ben_core_width;
+	
+	}
+	
+}
+
+void aspect_ratio_switch(int width,int height){  // send aspect float to videeo_driver
+		fly_aspect = (float)width/height;
+		video_driver_set_aspect_ratio_value((float)fly_aspect);
+}
+
+void switch_crt_hz(){  // set hz float an int for windows switching
+	
+	if (ben_core_hz != ben_tmp_core_hz){
+		if (ben_core_hz < 53 ){
+			set_ben_core_hz = 50;	
+			
+		}
+		if (ben_core_hz >= 53  &&  ben_core_hz < 57){	
+			set_ben_core_hz = 55;	
+		}	
+		if (ben_core_hz >= 57 ){	
+			set_ben_core_hz = 60;	
+		}	
+		video_monitor_set_refresh_rate(ben_core_hz);
+		ben_tmp_core_hz = ben_core_hz;
+	}
+	
+}
+
+void switch_res(int width, int height, int f_restore){  // windows function to swith resolutions
+	
+	DEVMODE curDevmode;
+	DEVMODE devmode;
+	DWORD flags = 0;
+	int     iModeNum;
+	int depth = 0;
+	int freq;
+	if (f_restore == 0){
+		freq = set_ben_core_hz;
+	} else {
+		freq = 0;
+	}
+	
+	EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &curDevmode);
+	
+	if (width == curDevmode.dmPelsWidth){
+		width  = 0;							// used to stop superresolution bug
+	}
+
+	if (width == 0) {
+		width = curDevmode.dmPelsWidth;
+	}
+	if (height == 0) {
+		height = curDevmode.dmPelsHeight;
+	}
+	if (depth == 0) {
+		depth = curDevmode.dmBitsPerPel;
+	}
+	if (freq == 0) {
+		freq = curDevmode.dmDisplayFrequency;
+	}
+
+	for (iModeNum = 0; ; iModeNum++) {
+		if (EnumDisplaySettings(NULL, iModeNum, &devmode)) {
+			// See if this setting has the right width.
+			if (devmode.dmPelsWidth != width) {
+				continue;
+			}
+
+			if (devmode.dmPelsHeight != height) {
+				continue;
+			}
+
+			// See if this setting has the right depth.
+			if (devmode.dmBitsPerPel != depth) {
+				continue;
+			}
+
+			// See if this setting has the right frequency.
+			if (devmode.dmDisplayFrequency != freq) {
+				continue;
+			}
+
+			// This new setting satisfies all the criteria. Try it.
+			devmode.dmFields |= DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
+			LONG res = ChangeDisplaySettings(&devmode, CDS_TEST);
+
+			switch (res) {
+			case DISP_CHANGE_SUCCESSFUL:
+				res = ChangeDisplaySettings(&devmode, flags);
+				switch (res) {
+				case DISP_CHANGE_SUCCESSFUL:
+					return;
+
+				case DISP_CHANGE_NOTUPDATED:
+				//	printf("Settings changed, but not permanently.\n");
+					return;
+
+				default:
+				//	printf("Something odd happened.\n");
+					break;
+				}
+				break;
+
+			case DISP_CHANGE_RESTART:
+				//printf("The computer needs to be restarted to switch to these settings\n");
+				break;
+
+			default:
+				//printf("Something odd happened.\n");
+				break;
+			}
+		}
+		else {
+			break;
+		}
+	}
+
+//	printf("Couldn't change settings.\n");
+
+}
+
+void video_restore(){
+	switch_res(orig_width, orig_height,1);
+}

gfx/video_crt_switch.h

@@ -0,0 +1,19 @@
+static int ben_core_width;
+static int ben_core_height;
+static int ben_tmp_width;
+static int ben_tmp_height;
+static int orig_width;			
+static int orig_height;
+static float ben_core_hz;
+static int set_ben_core_hz;
+static float ben_tmp_core_hz;
+
+
+void switch_res_core(int width, int height, float hz);
+void check_first_run();
+void screen_setup_aspect(int width, int height);
+void switch_res_crt(int width, int height);
+void aspect_ratio_switch(int width,int height);
+void switch_crt_hz();
+void switch_res(int width, int height, int f_restore);
+void video_restore();