epic commit. removed tga support, removed BGR support. fixed one config for editor, server and client, optimized tilemap rendering (this needs some cleanup), added tools to fix alpha outline quirk and glitches in the tilemap reindering

1 files changed, 83 insertions, 0 deletions

diff --git a/src/tools/tileset_borderfix.c b/src/tools/tileset_borderfix.c
new file mode 100644
index 00000000..ba7a40f0
--- /dev/null
+++ b/src/tools/tileset_borderfix.c
@@ -0,0 +1,83 @@
+
+#include "../engine/client/pnglite/pnglite.c"
+
+typedef struct pixel_t
+{
+	unsigned char r, g, b, a;
+} pixel;
+
+static pixel sample(int x, int y, int w, int h, pixel *data, int pitch, float u, float v)
+{
+	x = x + (int)(w*u);
+	y = y + (int)(h*v);
+	return data[y*pitch+x];
+}
+
+static void tilemap_borderfix(int w, int h, pixel *src, pixel *dst)
+{
+	int tilew = w/16;
+	int tileh = h/16;
+	int tx, ty;
+	int x, y;
+	int k;
+	float u, v;
+	
+	memset(dst, 0, sizeof(pixel)*w*h);
+				
+	for(ty = 0; ty < 16; ty++)
+		for(tx = 0; tx < 16; tx++)
+		{
+			for(y = 0; y < tileh-2; y++)
+				for(x = 0; x < tilew-2; x++)
+				{
+					u = 0.5f/tilew + x/(float)(tilew-2);
+					v = 0.5f/tileh + y/(float)(tileh-2);
+					k = (ty*tileh+1+y)*w + tx*tilew+x+1;
+					dst[k] = sample(tx*tilew, ty*tileh, tilew, tileh, src, w, u, v);
+					
+					if(x == 0) dst[k-1] = dst[k];
+					if(x == tilew-2-1) dst[k+1] = dst[k];
+					if(y == 0) dst[k-w] = dst[k];
+					if(y == tileh-2-1) dst[k+w] = dst[k];
+					
+					if(x == 0 && y == 0) dst[k-w-1] = dst[k];
+					if(x == tilew-2-1 && y == 0) dst[k-w+1] = dst[k];
+					if(x == 0 && y == tileh-2-1) dst[k+w-1] = dst[k];
+					if(x == tilew-2-1 && y == tileh-2-1) dst[k+w+1] = dst[k];
+				}
+		}
+}
+
+
+int main(int argc, char **argv)
+{
+	png_t png;
+	pixel *buffer[2] = {0,0};
+	int w, h;
+	
+	png_init(0,0);
+	png_open_file(&png, argv[1]);
+	
+	if(png.color_type != PNG_TRUECOLOR_ALPHA)
+	{
+		printf("not an RGBA image\n");
+		return -1;
+	}
+	
+	w = png.width;
+	h = png.height;
+	
+	buffer[0] = (pixel*)malloc(w*h*sizeof(pixel));
+	buffer[1] = (pixel*)malloc(w*h*sizeof(pixel));
+	png_get_data(&png, (unsigned char *)buffer[0]);
+	png_close_file(&png);
+	
+	tilemap_borderfix(w, h, buffer[0], buffer[1]);
+	
+	// save here
+	png_open_file_write(&png, "output.png");
+	png_set_data(&png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)buffer[1]);
+	png_close_file(&png);
+		
+	return 0;
+}