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Testing out render texture pixel manipulation and fixed full screen resize bug

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This commit is contained in:
Bobby Lucero 2024-04-19 14:31:11 -04:00
parent 905cb90588
commit b8fcb14d0c
2 changed files with 113 additions and 16 deletions
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61
main.cpp
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@ -4,11 +4,15 @@
using namespace std; using namespace std;
const int virtualScreenWidth = 240; const int virtualScreenWidth = 360;
const int virtualScreenHeight = 136; const int virtualScreenHeight = 203;
const int initialScale = 3;
int screenWidth = virtualScreenWidth * 4; int startupScreenWidth = virtualScreenWidth * initialScale;
int screenHeight = virtualScreenHeight * 4; int startupScreenHeight = virtualScreenHeight * initialScale;
int screenWidth = startupScreenWidth;
int screenHeight = startupScreenHeight;
void calculateBounds(Rectangle& bounds, Vector2& origin) { void calculateBounds(Rectangle& bounds, Vector2& origin) {
@ -29,12 +33,15 @@ void calculateBounds(Rectangle& bounds, Vector2& origin) {
} }
int main() { int main() {
const float virtualRatio = (float)screenWidth/(float)virtualScreenWidth;
SetTraceLogLevel(LOG_ERROR);
bool flip = false;
SetConfigFlags(FLAG_WINDOW_RESIZABLE); SetConfigFlags(FLAG_WINDOW_RESIZABLE);
InitWindow(screenWidth, screenHeight, "test"); InitWindow(startupScreenWidth, startupScreenHeight, "test");
SetTargetFPS(60); SetTargetFPS(-1);
RenderTexture2D virtualScreen = LoadRenderTexture(virtualScreenWidth, virtualScreenHeight); RenderTexture2D virtualScreen = LoadRenderTexture(virtualScreenWidth, virtualScreenHeight);
Rectangle sourceRec = { 0.0f, 0.0f, (float)virtualScreen.texture.width, -(float)virtualScreen.texture.height }; Rectangle sourceRec = { 0.0f, 0.0f, (float)virtualScreen.texture.width, -(float)virtualScreen.texture.height };
@ -44,7 +51,6 @@ int main() {
pkpy::VM* vm = new pkpy::VM(); pkpy::VM* vm = new pkpy::VM();
Texture2D logo = LoadTexture("resources/img.png"); Texture2D logo = LoadTexture("resources/img.png");
try { try {
@ -65,18 +71,27 @@ int main() {
} }
if (IsKeyPressed(KEY_F)) { if (IsKeyPressed(KEY_F)) {
if(IsWindowFullscreen()){
ToggleFullscreen();
SetWindowSize(startupScreenWidth, startupScreenHeight);
screenWidth = startupScreenWidth;
screenHeight = startupScreenHeight;
}else{
int monitor = GetCurrentMonitor(); int monitor = GetCurrentMonitor();
SetWindowSize(GetMonitorWidth(monitor), GetMonitorHeight(monitor)); SetWindowSize(GetMonitorWidth(monitor), GetMonitorHeight(monitor));
screenWidth = GetScreenWidth(); screenWidth = GetMonitorWidth(monitor);
screenHeight = GetScreenHeight(); screenHeight = GetMonitorHeight(monitor);
calculateBounds(virtualScreenBounds, origin);
ToggleFullscreen(); ToggleFullscreen();
} }
calculateBounds(virtualScreenBounds, origin);
}else if(IsKeyPressed(KEY_I)){
flip = !flip;
}
BeginTextureMode(virtualScreen); BeginTextureMode(virtualScreen);
ClearBackground(GRAY); ClearBackground(BLUE);
DrawText("Hello World", 5, 5, 5, RAYWHITE); DrawText(("Hello World " + to_string(GetFPS()) + " FPS").c_str(), 5, 5, 5, RAYWHITE);
DrawTexture(logo, 5, 20, WHITE); DrawTexture(logo, 80 + cos(GetTime()) * (virtualScreenHeight / 4), (virtualScreenHeight / 2) + sin(GetTime()) * (virtualScreenHeight / 4) - 29, WHITE);
DrawLineBezier((Vector2){80, 20}, (Vector2){virtualScreenWidth - 5, virtualScreenHeight - 5}, 1, GREEN); DrawLineBezier((Vector2){80, 20}, (Vector2){virtualScreenWidth - 5, virtualScreenHeight - 5}, 1, GREEN);
DrawCircle(virtualScreenWidth / 2, virtualScreenHeight / 2, 15, GREEN); DrawCircle(virtualScreenWidth / 2, virtualScreenHeight / 2, 15, GREEN);
DrawCircle(virtualScreenWidth / 2, virtualScreenHeight / 2, 13, YELLOW); DrawCircle(virtualScreenWidth / 2, virtualScreenHeight / 2, 13, YELLOW);
@ -87,6 +102,24 @@ int main() {
EndTextureMode(); EndTextureMode();
if(flip){
// Get texture data
Image img = LoadImageFromTexture(virtualScreen.texture);
Color* pixels = LoadImageColors(img);
// Modify pixel data
for (int y = 0; y < img.height; y++) {
for (int x = 0; x < img.width; x++) {
// Example: Invert colors
Color pixel = pixels[y * img.width + x];
pixels[y * img.width + x] = { (unsigned char)(255 - pixel.g), (unsigned char)(255 - pixel.r), (unsigned char)(255 - pixel.b), pixel.a };
}
}
// Update texture with modified data
UpdateTexture(virtualScreen.texture, pixels);
}
BeginDrawing(); BeginDrawing();
ClearBackground(BLACK); ClearBackground(BLACK);
DrawTexturePro(virtualScreen.texture, sourceRec, virtualScreenBounds, origin, 0.0f, WHITE); DrawTexturePro(virtualScreen.texture, sourceRec, virtualScreenBounds, origin, 0.0f, WHITE);

64
resources/palette.hex Normal file
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@ -0,0 +1,64 @@
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ffffff
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