CubeMap support

Backends/Android/kha/android/Graphics.hx

@@ -58,6 +58,10 @@ class Graphics implements kha.graphics4.Graphics {
 		}
 	}
 
+	public function beginFace(face: Int): Void {
+
+	}
+
 	public function beginEye(eye: Int): Void {
 
 	}
@@ -185,8 +189,12 @@ class Graphics implements kha.graphics4.Graphics {
 		this.indexBuffer = indexBuffer;
 	}
 
-	public function createCubeMap(size: Int, format: TextureFormat, usage: Usage, canRead: Bool = false): CubeMap {
-		return null;
+	public function setCubeMap(stage: kha.graphics4.TextureUnit, cubeMap: kha.graphics4.CubeMap): Void {
+
+	}
+
+	public function setCubeMapDepth(stage: kha.graphics4.TextureUnit, cubeMap: kha.graphics4.CubeMap): Void {
+
 	}
 
 	public function setTexture(stage: kha.graphics4.TextureUnit, texture: kha.Image): Void {

Backends/Android/kha/graphics4/CubeMap.hx

@@ -0,0 +1,34 @@
+package kha.graphics4;
+
+import haxe.io.Bytes;
+
+class CubeMap implements Canvas implements Resource {
+
+	public static function createRenderTarget(size: Int, format: TextureFormat = null, depthStencil: DepthStencilFormat = null): CubeMap {
+		return null;
+	}
+
+	public function set(stage: Int): Void {
+
+	}
+
+	public function setDepth(stage: Int): Void {
+
+	}
+
+	public function unload(): Void { }
+	public function lock(level: Int = 0): Bytes { return null; }
+	public function unlock(): Void { }
+
+	public var width(get, null): Int;
+	private function get_width(): Int { return 0; }
+	public var height(get, null): Int;
+	private function get_height(): Int { return 0; }
+
+	public var g1(get, null): kha.graphics1.Graphics;
+	private function get_g1(): kha.graphics1.Graphics { return null; }
+	public var g2(get, null): kha.graphics2.Graphics;
+	private function get_g2(): kha.graphics2.Graphics { return null; }
+	public var g4(get, null): kha.graphics4.Graphics;
+	private function get_g4(): kha.graphics4.Graphics { return null; }
+}

Backends/Empty/kha/graphics4/CubeMap.hx

@@ -0,0 +1,34 @@
+package kha.graphics4;
+
+import haxe.io.Bytes;
+
+class CubeMap implements Canvas implements Resource {
+
+	public static function createRenderTarget(size: Int, format: TextureFormat = null, depthStencil: DepthStencilFormat = null): CubeMap {
+		return null;
+	}
+
+	public function set(stage: Int): Void {
+
+	}
+
+	public function setDepth(stage: Int): Void {
+
+	}
+
+	public function unload(): Void { }
+	public function lock(level: Int = 0): Bytes { return null; }
+	public function unlock(): Void { }
+
+	public var width(get, null): Int;
+	private function get_width(): Int { return 0; }
+	public var height(get, null): Int;
+	private function get_height(): Int { return 0; }
+
+	public var g1(get, null): kha.graphics1.Graphics;
+	private function get_g1(): kha.graphics1.Graphics { return null; }
+	public var g2(get, null): kha.graphics2.Graphics;
+	private function get_g2(): kha.graphics2.Graphics { return null; }
+	public var g4(get, null): kha.graphics4.Graphics;
+	private function get_g4(): kha.graphics4.Graphics { return null; }
+}

Backends/Flash/kha/flash/graphics4/Graphics.hx

@@ -133,8 +133,12 @@ class Graphics implements kha.graphics4.Graphics {
 		context.setDepthTest(write, getCompareMode(mode));
 	}
 
-	public function createCubeMap(size: Int, format: TextureFormat, usage: Usage, canRead: Bool = false): CubeMap {
-		return null;
+	public function setCubeMap(stage: kha.graphics4.TextureUnit, cubeMap: kha.graphics4.CubeMap): Void {
+
+	}
+
+	public function setCubeMapDepth(stage: kha.graphics4.TextureUnit, cubeMap: kha.graphics4.CubeMap): Void {
+
 	}
 
 	private function getStencilAction(action: StencilAction): Context3DStencilAction {
@@ -419,6 +423,10 @@ class Graphics implements kha.graphics4.Graphics {
 		else context.setRenderToTexture(target.getFlashTexture(), enableDepthStencil(target.depthStencilFormat()));
 	}
 
+	public function beginFace(face: Int): Void {
+
+	}
+
 	public function beginEye(eye: Int): Void {
 
 	}

Backends/Flash/kha/graphics4/CubeMap.hx

@@ -0,0 +1,34 @@
+package kha.graphics4;
+
+import haxe.io.Bytes;
+
+class CubeMap implements Canvas implements Resource {
+
+	public static function createRenderTarget(size: Int, format: TextureFormat = null, depthStencil: DepthStencilFormat = null): CubeMap {
+		return null;
+	}
+
+	public function set(stage: Int): Void {
+
+	}
+
+	public function setDepth(stage: Int): Void {
+
+	}
+
+	public function unload(): Void { }
+	public function lock(level: Int = 0): Bytes { return null; }
+	public function unlock(): Void { }
+
+	public var width(get, null): Int;
+	private function get_width(): Int { return 0; }
+	public var height(get, null): Int;
+	private function get_height(): Int { return 0; }
+
+	public var g1(get, null): kha.graphics1.Graphics;
+	private function get_g1(): kha.graphics1.Graphics { return null; }
+	public var g2(get, null): kha.graphics2.Graphics;
+	private function get_g2(): kha.graphics2.Graphics { return null; }
+	public var g4(get, null): kha.graphics4.Graphics;
+	private function get_g4(): kha.graphics4.Graphics { return null; }
+}

Backends/HTML5/kha/graphics4/CubeMap.hx

@@ -0,0 +1,147 @@
+package kha.graphics4;
+
+import js.html.webgl.GL;
+import haxe.io.Bytes;
+import kha.js.graphics4.Graphics;
+
+class CubeMap implements Canvas implements Resource {
+
+	private var myWidth: Int;
+	private var myHeight: Int;
+	private var format: TextureFormat;
+	private var renderTarget: Bool;
+	private var depthStencilFormat: DepthStencilFormat;
+	private var graphics4: kha.graphics4.Graphics;
+
+	public var frameBuffer: Dynamic = null;
+	public var texture: Dynamic = null;
+	public var depthTexture: Dynamic = null;
+	public var isDepthAttachment: Bool = false;
+
+	private function new(size: Int, format: TextureFormat, renderTarget: Bool, depthStencilFormat: DepthStencilFormat) {
+		myWidth = size;
+		myHeight = size;
+		this.format = format;
+		this.renderTarget = renderTarget;
+		this.depthStencilFormat = depthStencilFormat;
+		if (renderTarget) createTexture();
+	}
+
+	public static function createRenderTarget(size: Int, format: TextureFormat = null, depthStencil: DepthStencilFormat = null): CubeMap {
+		if (format == null) format = TextureFormat.RGBA32;
+		if (depthStencil == null) depthStencil = NoDepthAndStencil;
+		return new CubeMap(size, format, true, depthStencil);
+	}
+
+	private function createTexture() {
+		if (SystemImpl.gl == null) return;
+
+		texture = SystemImpl.gl.createTexture();
+		SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, texture);
+
+		SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
+		SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
+		SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
+		SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
+
+		if (renderTarget) {
+
+			frameBuffer = SystemImpl.gl.createFramebuffer();
+			SystemImpl.gl.bindFramebuffer(GL.FRAMEBUFFER, frameBuffer);
+
+			switch (format) {
+			case DEPTH16:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.DEPTH_COMPONENT, myWidth, myHeight, 0, GL.DEPTH_COMPONENT, GL.UNSIGNED_SHORT, null);
+			case RGBA128:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.FLOAT, null);
+			case RGBA64:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, SystemImpl.halfFloat.HALF_FLOAT_OES, null);
+			case RGBA32:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
+			case A32:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.ALPHA, myWidth, myHeight, 0, GL.ALPHA, GL.FLOAT, null);
+			case A16:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.ALPHA, myWidth, myHeight, 0, GL.ALPHA, SystemImpl.halfFloat.HALF_FLOAT_OES, null);
+			default:
+				for (i in 0...6) SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
+			}
+
+			if (format == DEPTH16) {
+				isDepthAttachment = true;
+				// OSX/Linux WebGL implementations throw incomplete framebuffer error, create color attachment
+				if (untyped __js__('navigator.appVersion.indexOf("Win")') == -1) {
+					var colortex = SystemImpl.gl.createTexture();
+					SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, colortex);
+					for (i in 0...6) {
+						SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL.RGBA, myWidth, myHeight, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
+						SystemImpl.gl.framebufferTexture2D(GL.FRAMEBUFFER, GL.COLOR_ATTACHMENT0, GL.TEXTURE_CUBE_MAP_POSITIVE_X + i, colortex, 0);
+					}
+					SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, texture);
+				}
+			}
+
+			initDepthStencilBuffer(depthStencilFormat);
+			SystemImpl.gl.bindFramebuffer(GL.FRAMEBUFFER, null);
+		}
+
+		SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, null);
+	}
+
+	private function initDepthStencilBuffer(depthStencilFormat: DepthStencilFormat) {
+		switch (depthStencilFormat) {
+		case NoDepthAndStencil: {}
+		case DepthOnly: {
+			depthTexture = SystemImpl.gl.createTexture();
+			SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, depthTexture);
+			SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP, 0, GL.DEPTH_COMPONENT, myWidth, myHeight, 0, GL.DEPTH_COMPONENT, GL.UNSIGNED_INT, null);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MAG_FILTER, GL.NEAREST);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MIN_FILTER, GL.NEAREST);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
+			SystemImpl.gl.bindFramebuffer(GL.FRAMEBUFFER, frameBuffer);
+			SystemImpl.gl.framebufferTexture2D(GL.FRAMEBUFFER, GL.DEPTH_ATTACHMENT, GL.TEXTURE_CUBE_MAP, depthTexture, 0);
+		}
+		case DepthAutoStencilAuto, Depth24Stencil8, Depth32Stencil8:
+			depthTexture = SystemImpl.gl.createTexture();
+			SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, depthTexture);
+			SystemImpl.gl.texImage2D(GL.TEXTURE_CUBE_MAP, 0, GL.DEPTH_STENCIL, myWidth, myHeight, 0, GL.DEPTH_STENCIL, SystemImpl.depthTexture.UNSIGNED_INT_24_8_WEBGL, null);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MAG_FILTER, GL.NEAREST);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_MIN_FILTER, GL.NEAREST);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
+			SystemImpl.gl.texParameteri(GL.TEXTURE_CUBE_MAP, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
+			SystemImpl.gl.bindFramebuffer(GL.FRAMEBUFFER, frameBuffer);
+			SystemImpl.gl.framebufferTexture2D(GL.FRAMEBUFFER, GL.DEPTH_STENCIL_ATTACHMENT, GL.TEXTURE_CUBE_MAP, depthTexture, 0);
+		}
+	}
+
+	public function set(stage: Int): Void {
+		SystemImpl.gl.activeTexture(GL.TEXTURE0 + stage);
+		SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, texture);
+	}
+
+	public function setDepth(stage: Int): Void {
+		SystemImpl.gl.activeTexture(GL.TEXTURE0 + stage);
+		SystemImpl.gl.bindTexture(GL.TEXTURE_CUBE_MAP, depthTexture);
+	}
+
+	public function unload(): Void { }
+	public function lock(level: Int = 0): Bytes { return null; }
+	public function unlock(): Void { }
+
+	public var width(get, null): Int;
+	private function get_width(): Int { return myWidth; }
+	public var height(get, null): Int;
+	private function get_height(): Int { return myHeight; }
+
+	public var g1(get, null): kha.graphics1.Graphics;
+	private function get_g1(): kha.graphics1.Graphics { return null; }
+	public var g2(get, null): kha.graphics2.Graphics;
+	private function get_g2(): kha.graphics2.Graphics { return null; }
+	public var g4(get, null): kha.graphics4.Graphics;
+	private function get_g4(): kha.graphics4.Graphics {
+		if (graphics4 == null) {
+			graphics4 = new Graphics(this);
+		}
+		return graphics4;
+	}
+}