Finishing more work on textures/fonts

src/main/java/speiger/src/coreengine/NewInputTest.java

@@ -14,6 +14,7 @@ import speiger.src.coreengine.rendering.input.devices.FileDrop;
 import speiger.src.coreengine.rendering.input.devices.Joystick;
 import speiger.src.coreengine.rendering.input.devices.Keyboard;
 import speiger.src.coreengine.rendering.input.devices.Mouse;
+import speiger.src.coreengine.rendering.input.events.KeyEvent;
 import speiger.src.coreengine.rendering.input.window.Window;
 import speiger.src.coreengine.rendering.input.window.WindowManager;
 import speiger.src.coreengine.rendering.models.buffers.BufferAttribute;
@@ -23,10 +24,12 @@ import speiger.src.coreengine.rendering.shader.SimpleShader;
 import speiger.src.coreengine.rendering.shader.uniform.base.TextureUniform;
 import speiger.src.coreengine.rendering.tesselation.buffer.VertexBuilder;
 import speiger.src.coreengine.rendering.tesselation.format.VertexTypes;
+import speiger.src.coreengine.rendering.textures.custom.Drawable;
 import speiger.src.coreengine.rendering.textures.custom.DynamicTexture;
 import speiger.src.coreengine.rendering.utils.GLStateTracker;
 import speiger.src.coreengine.rendering.utils.values.GLDataType;
 import speiger.src.coreengine.rendering.utils.values.GLMode;
+import speiger.src.coreengine.rendering.utils.values.textures.GLTextureFormat;
 import speiger.src.coreengine.utils.eventbus.EventBus;
 import speiger.src.coreengine.utils.helpers.IOUtils;
 
@@ -67,6 +70,17 @@ public class NewInputTest {
 		texture.process(true);
 		window.visible(true);
 		
+		bus.register(KeyEvent.Key.class, T -> {
+			if(T.key() == GLFW.GLFW_KEY_T) {
+				T.cancel();
+				texture.bind();
+				Drawable drawable = new Drawable(GLTextureFormat.RGBA, 8, 8);
+				drawable.fill(0, 0, 8, 8, 255, 255, 0, 255);
+				drawable.upload(6, 6, 2, 2, 4, 4);
+				drawable.close();
+			}
+		});
+		
 		VertexBuilder builder = new VertexBuilder(255);
 		builder.start(GLMode.TRIANGLES, VertexTypes.TESTING);
 		builder.pos(-0.5F, -0.5F, 0).tex(0F, 1F).rgba(-1).endVertex();

src/main/java/speiger/src/coreengine/rendering/textures/base/TextureMetadata.java

@@ -99,6 +99,7 @@ public class TextureMetadata {
 			for(int i = 0,m=list.size();i<m;i++) {
 				if(BitUtil.intKey(list.getLong(i)) == id) {
 					list.removeLong(i--);
+					m--;
 				}
 			}
 			return this;

src/main/java/speiger/src/coreengine/rendering/textures/custom/Drawable.java

@@ -1,11 +1,17 @@
 package speiger.src.coreengine.rendering.textures.custom;
 
-import org.lwjgl.opengl.GL46;
 import org.lwjgl.stb.STBImage;
+import org.lwjgl.stb.STBTTFontinfo;
+import org.lwjgl.stb.STBTruetype;
 import org.lwjgl.system.MemoryUtil;
 
 import speiger.src.coreengine.math.misc.ColorSpaces;
+import speiger.src.coreengine.rendering.utils.GLFunctions;
+import speiger.src.coreengine.rendering.utils.GLStateTracker;
+import speiger.src.coreengine.rendering.utils.values.GLDataType;
+import speiger.src.coreengine.rendering.utils.values.IGLValue;
 import speiger.src.coreengine.rendering.utils.values.IGLValue.ITextureComponentFormat;
+import speiger.src.coreengine.rendering.utils.values.textures.GLTextureType;
 
 public class Drawable implements IDrawable, AutoCloseable {
 	ITextureComponentFormat format;
@@ -20,6 +26,7 @@ public class Drawable implements IDrawable, AutoCloseable {
 	}
 	
 	public Drawable(ITextureComponentFormat format, int width, int height, long pixels, boolean isSTB) {
+		this.format = format;
 		this.width = width;
 		this.height = height;
 		this.pixels = pixels;
@@ -55,12 +62,34 @@ public class Drawable implements IDrawable, AutoCloseable {
 	
 	protected void ensureValid(int x, int y) {
 		if(x < 0 || y < 0) throw new ArrayIndexOutOfBoundsException("Index out of bounds: X=["+x+"], Y=["+y+"]");
-		if(x >= width || y >= height) throw new ArrayIndexOutOfBoundsException("Index out of bounds: X=["+x+"], Y=["+y+"], width=["+width+"], height=["+height+"]");
+		if(x > width || y > height) throw new ArrayIndexOutOfBoundsException("Index out of bounds: X=["+x+"], Y=["+y+"], width=["+width+"], height=["+height+"]");
 		if(pixels == 0L) throw new IllegalStateException("Pixel Data doesn't exist");
 	}
 	
-	public void upload(int texture, int level, int x, int y, int texX, int texY, int width, int height) {
+	public void drawFont(STBTTFontinfo info, int glyth, int sourceX, int sourceY, int targetX, int targetY, int width, int height, float scaleX, float scaleY) {
+		ensureValid(targetX, targetY);
+		ensureValid(targetX + width, targetY + height);
+		if(components != 1) throw new IllegalStateException("Format has to be 1 component");
+		STBTruetype.nstbtt_MakeGlyphBitmapSubpixel(info.address(), pixels + offset(targetX, targetY), width, height, width(), scaleX, scaleY, sourceX, sourceY, glyth);
+	}
 	
+	public void upload(int targetX, int targetY, int sourceX, int sourceY, int width, int height) {
+		upload(GLTextureType.TEXTURE_2D, 0, targetX, targetY, sourceX, sourceY, width, height);
+	}
+	
+	public void upload(IGLValue textureType, int level, int targetX, int targetY, int sourceX, int sourceY, int width, int height) {
+		ensureValid(sourceX, sourceY);
+		ensureValid(sourceX + width, sourceY + height);
+		GLStateTracker tracker = GLStateTracker.instance();
+		tracker.unpack_row_length.set(width());
+		tracker.unpack_alignment.set(format.components());
+		tracker.unpack_skip_pixel.set(sourceX);
+		tracker.unpack_skip_rows.set(sourceY);
+		GLFunctions.upload2DSubImage(textureType, level, targetX, targetY, width, height, format, GLDataType.UNSIGNED_BYTE, pixels);
+		tracker.unpack_row_length.setDefault();
+		tracker.unpack_skip_pixel.setDefault();
+		tracker.unpack_skip_rows.setDefault();
+		tracker.unpack_alignment.setDefault();
 	}
 	
 	@Override
@@ -103,8 +132,10 @@ public class Drawable implements IDrawable, AutoCloseable {
 		if(components != 4) throw new IllegalStateException("Format has to be 4 components");
 		ensureValid(x, y);
 		ensureValid(x+width, y+height);
+		for(int xOff = 0;xOff<width;xOff++) {
 			for(int yOff = 0;yOff<height;yOff++) {
-			MemoryUtil.memSet(offset(x, y+yOff), data, width * 4L);
+				MemoryUtil.memPutInt(this.pixels + offset(x+xOff, y+yOff), data);
+			}
 		}
 	}
 	
@@ -119,27 +150,27 @@ public class Drawable implements IDrawable, AutoCloseable {
 	public int getR(int index) {
 		if(!format.hasRed()) throw new IllegalArgumentException("Format doesn't support Red/Luminance");
 		ensureValid(index);
-		return MemoryUtil.memGetByte(index * 4L);
+		return MemoryUtil.memGetByte(index * components + format.redOffset());
 	}
 	
 	@Override
 	public int getG(int index) {
 		if(!format.hasGreen()) throw new IllegalArgumentException("Format doesn't support Green");
 		ensureValid(index);
-		return MemoryUtil.memGetByte(index * 4L + 1L);
+		return MemoryUtil.memGetByte(index * components + format.greenOffset());
 	}
 	
 	@Override
 	public int getB(int index) {
 		if(!format.hasBlue()) throw new IllegalArgumentException("Format doesn't support Blue");
 		ensureValid(index);
-		return MemoryUtil.memGetByte(index * 4L + 2L);
+		return MemoryUtil.memGetByte(index * components + format.blueOffset());
 	}
 	
 	@Override
 	public int getA(int index) {
 		if(!format.hasAlpha()) throw new IllegalArgumentException("Format doesn't support Alpha");
 		ensureValid(index);
-		return MemoryUtil.memGetByte(index * 4L + 3L);
+		return MemoryUtil.memGetByte(index * components + format.alphaOffset());
 	}
 }

src/main/java/speiger/src/coreengine/utils/eventbus/EventBus.java

@@ -99,6 +99,7 @@ public class EventBus
 	}
 	
 	protected Listeners getListeners(Class<? extends Event> event) {
+		//TODO this is abusing undefined behavior!
 		return listeners.computeIfAbsent(event, T -> {
 			if(T == Event.class) return new Listeners();
 			else return new Listeners(getListeners(castClass(event.getSuperclass())));