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Updated video.c for SDL

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0xmac 2025-01-07 14:35:28 +01:00
parent 1884b56533
commit 98b435f570
1 changed files with 21 additions and 34 deletions
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55
src/video.c
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@ -1,12 +1,9 @@
#include <stdlib.h>
#include <stdint.h>
#include <SFML/System.h>
#include <SFML/Graphics.h>
#include <SFML/Window.h>
extern float displayScale;
/* Public Variables */
extern sfVertexArray *renderArray;
int8_t videoModified;
/* Hardware-like Registers */
@ -19,24 +16,19 @@ uint8_t videoA;
static uint8_t videoRow;
static uint8_t videoValue;
static uint8_t videoColorValue;
static sfColor videoDisplayColor;
static sfColor videoForeColor;
static sfColor videoBackColor;
const static sfColor videoUpperPalette = (sfColor){ 64, 64, 64 };
static sfColor *videoColorIndex[] = {
&sfBlack, &sfRed, &sfGreen, &sfYellow, &sfBlue, &sfMagenta, &sfCyan, &sfWhite//&(sfColor){ 96, 96, 96 } ,
/*&(sfColor){ 0, 0, 0 },
&(sfColor){ 0xFF, 0, 0 },
&(sfColor){ 0, 0xFF, 0 },
&(sfColor){ 0xFF, 0xFF, 0 },
&(sfColor){ 0, 0, 0xFF },
&(sfColor){ 0xFF, 0, 0xFF },
&(sfColor){ 0, 0xFF, 0xFF },
&(sfColor){ 0xFF, 0xFF, 0xFF },*/
static uint32_t videoColorIndex[] = {
0x000000FF,
0xFF0000FF,
0x00FF00FF,
0xFFFF00FF,
0x0000FFFF,
0xFF00FFFF,
0x00FFFFFF,
0xFFFFFFFF
};
static uint8_t videoMemory[0x8000];
static uint32_t renderMemory[(SDL_X_SIZE * SDL_Y_SIZE)];
void writeVideo(){
@ -49,9 +41,6 @@ uint8_t readVideo(){
}
void initVideo(){
renderArray = sfVertexArray_create();
sfVertexArray_setPrimitiveType(renderArray, sfQuads);
videoModified = 1;
videoMode = 0x01;
@ -60,7 +49,7 @@ void initVideo(){
void updateVideo(){
if (videoModified){
sfVertexArray_clear(renderArray);
//sfVertexArray_clear(renderArray);
for (uint8_t y = 0; y < 255; y++){
videoRow = (int8_t)(y & 0x7);
@ -91,18 +80,16 @@ void updateVideo(){
// Snipping out the upper 8 colors
videoColorValue &= 0x77;
videoForeColor = *videoColorIndex[(videoColorValue & 0x0F)];
videoBackColor = *videoColorIndex[((videoColorValue & 0xF0) >> 4)];
for (uint8_t i = 0; i < 8; i++){
if (videoValue & (128 >> i)) videoDisplayColor = videoBackColor;
else videoDisplayColor = videoForeColor;
sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i, y }, videoDisplayColor});
sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i + 1, y }, videoDisplayColor});
sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i + 1, y + 1 }, videoDisplayColor});
sfVertexArray_append(renderArray, (sfVertex){ (sfVector2f){ (x * 8) + i, y + 1 }, videoDisplayColor});
if (displayScale == 1){
renderMemory[(y * SDL_X_SIZE) + ((x * 8) + i)] = (videoValue & (128 >> i)) ? videoColorIndex[((videoColorValue & 0xF0) >> 4)] : videoColorIndex[(videoColorValue & 0x0F)];
} else {
for (uint8_t _x = 0; _x < displayScale; _x++){
for (uint8_t _y = 0; _y < displayScale; _y++){
renderMemory[(((y * (int)displayScale) + _y) * SDL_X_SIZE) + ((((x * (int)displayScale) * 8) + (i * (int)displayScale)) + _x)] = (videoValue & (128 >> i)) ? videoColorIndex[((videoColorValue & 0xF0) >> 4)] : videoColorIndex[(videoColorValue & 0x0F)];
}
}
}
}
}
}