Initial commit (SDL1.2)

Orwa Diraneyya · Orwa Diraneyya · commit 4e8efe31de03 · 2022-10-28T00:20:48.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+index.wasm
+index.mjs
diff --git a/.vscode/settings.json b/.vscode/settings.json
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+{
+    "liveServer.settings.port": 5502
+}
diff --git a/Makefile b/Makefile
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+wasm:
+	emcc -g index.c -s MODULARIZE -o index.mjs
diff --git a/index.c b/index.c
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+#include <SDL.h>
+#include <emscripten.h>
+#include <stdlib.h>
+
+SDL_Surface *screen;
+
+void drawRandomPixels() {
+    if (SDL_MUSTLOCK(screen)) SDL_LockSurface(screen);
+
+    Uint8 * pixels = screen->pixels;
+    
+    for (int i=0; i < 32 * 32 * 4; i++) {
+        char randomByte = rand() % 255;
+        pixels[i] = randomByte;
+    }
+
+    if (SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
+
+    SDL_Flip(screen);
+}
+
+int main(int argc, char* argv[]) {
+    
+    SDL_Init(SDL_INIT_VIDEO);
+
+    EM_ASM(
+        SDL.defaults.copyOnLock = false;
+        SDL.defaults.discardOnLock = true;
+        SDL.defaults.opaqueFrontBuffer = false;
+    );
+
+    screen = SDL_SetVideoMode(32, 32, 32, SDL_SWSURFACE);
+    
+    emscripten_set_main_loop(drawRandomPixels, 0, 1);
+}
diff --git a/index.html b/index.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Document</title>
+  <style>
+    #canvas {
+      image-rendering: pixelated;
+      width: 100%;
+      aspect-ratio: 1 / 1;
+    }
+  </style>
+</head>
+<body>
+  <h1>SDL2 WASM Game Loader</h1>
+  <canvas id="canvas"></canvas>
+  <script type="module">
+    import initModule from './index.mjs';
+
+    var Module = await initModule({
+      canvas: document.getElementById('canvas')
+    });
+  </script>
+</body>
+</html>

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+{`
	`2`	`+ "liveServer.settings.port": 5502`
	`3`	`+}`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+wasm:`
	`2`	`+ emcc -g index.c -s MODULARIZE -o index.mjs`