Translated C# version to C

src/video.c

@@ -0,0 +1,117 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include <SFML/System.h>
+#include <SFML/Graphics.h>
+#include <SFML/Window.h>
+
+/* Public Variables */
+extern sfVertexArray *renderArray;
+int8_t videoModified;
+int8_t videoMode;
+
+/* Private Variables */
+static uint8_t video_row;
+static uint8_t video_value;
+static uint8_t video_colorValue;
+static sfColor video_displayColor;
+static sfColor video_foreColor;
+static sfColor video_backColor;
+
+const sfColor video_upperPalette = (sfColor){ 64, 64, 64 };
+
+static 	sfColor *video_colorIndex[16] = {
+	&sfBlack,					// 0x0
+	&sfRed,						// 0x1
+	&sfGreen,					// 0x2
+	&sfYellow,					// 0x3
+	&sfBlue,					// 0x4
+	&sfMagenta,					// 0x5
+	&sfCyan,					// 0x6
+	&(sfColor){ 96, 96, 96 },	// 0x7
+	
+	&(sfColor){ 162, 162, 162 },// 0x8
+	&sfRed,						// 0x9
+	&sfGreen,					// 0xA
+	&sfYellow,					// 0xB
+	&sfBlue,					// 0xC
+	&sfMagenta,					// 0xD
+	&sfCyan,					// 0xE
+	&sfWhite,					// 0xF
+};
+
+static uint8_t video_memory[0x8000];	// Empty Memory with 32k space
+
+void initVideo(){
+	renderArray = sfVertexArray_create();
+	sfVertexArray_setPrimitiveType(renderArray, sfQuads);
+	
+	videoModified = 1;
+	videoMode = 0;
+	
+	for (int i = 0x8; i < 0xF; i++){
+		//*video_colorIndex[i] = sfColor_add(*video_colorIndex[i], video_upperPalette);
+	}
+	
+	for (int i = 0; i < 0x8000; i++){
+		video_memory[i] = rand();
+	}
+}
+
+void updateVideo(){
+	sfVertexArray_clear(renderArray);
+	sfVertexArray_setPrimitiveType(renderArray, sfQuads);
+
+	videoModified = 0;
+	
+	for (int y = 0; y < 256; y++){
+		video_row = (int8_t)(y & 0x7);
+		
+		for (int x = 0; x < 48; x++){
+			
+			if (videoMode == 1){
+				/*  
+				 *           Text Address Format
+				 *           0bRRR1111AAAAAAAA
+				 * 
+				 *           R = row pins
+				 *           A = address
+				 */
+				
+				// Get text index value
+				video_value = video_memory[(((y & 0xF8) >> 3) << 7) | x];
+				
+				// Index the value in font location
+				video_value = video_memory[(video_row | 0b1111000) + (video_value * 128)];
+				video_colorValue = video_memory[(((y & 0xF8) >> 3) << 7) + (x | 0x40)];
+			}
+			else {
+				video_value = video_memory[(y * 128) + x];
+				video_colorValue = video_memory[(y * 128) + (x | 0x40)];
+			}
+			
+			// Snipping out the upper 8 colors
+			//video_colorValue &= 0x77;
+			
+			video_foreColor = *video_colorIndex[(video_colorValue & 0x0F)];
+			video_backColor = *video_colorIndex[((video_colorValue & 0xF0) >> 4)];
+			
+			
+			for (int i = 0; i < 8; i++){
+				if (video_value & (128 >> i)){
+					video_displayColor = video_foreColor;
+				} else {
+					video_displayColor = video_backColor;
+				}
+				
+				sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i, y }, video_displayColor});
+				sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i + 1, y }, video_displayColor});
+				sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i + 1, y + 1 }, video_displayColor});
+				sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i, y + 1 }, video_displayColor});
+			}
+		}
+	}
+}
+
+
+