Framebuffer Layer query

src/OpenGL/libGLESv2/Framebuffer.cpp

@@ -220,6 +220,12 @@ GLuint Framebuffer::getStencilbufferName()
 	return mStencilbufferPointer.name();
 }
 
+GLint Framebuffer::getColorbufferLayer(GLuint index)
+{
+	Renderbuffer *colorbuffer = mColorbufferPointer[index];
+	return (colorbuffer != nullptr) ? colorbuffer->getLayer() : 0;
+}
+
 bool Framebuffer::hasStencil()
 {
 	if(mStencilbufferType != GL_NONE)

src/OpenGL/libGLESv2/Framebuffer.h

@@ -59,6 +59,8 @@ public:
     GLuint getDepthbufferName();
     GLuint getStencilbufferName();
 
+	GLint getColorbufferLayer(GLuint index);
+
     bool hasStencil();
 
 	virtual GLenum completeness();

src/OpenGL/libGLESv2/Renderbuffer.cpp

@@ -332,6 +332,11 @@ GLsizei Renderbuffer::getHeight() const
 	return mInstance->getHeight();
 }
 
+GLint Renderbuffer::getLayer() const
+{
+	return mInstance->getLayer();
+}
+
 GLenum Renderbuffer::getFormat() const
 {
 	return mInstance->getFormat();

src/OpenGL/libGLESv2/Renderbuffer.h

@@ -47,6 +47,7 @@ public:
 
 	virtual GLsizei getWidth() const = 0;
 	virtual GLsizei getHeight() const = 0;
+	virtual GLint getLayer() const { return 0; }
 	virtual GLenum getFormat() const = 0;
 	virtual sw::Format getInternalFormat() const = 0;
 	virtual GLsizei getSamples() const = 0;
@@ -100,6 +101,7 @@ public:
 
 	virtual GLsizei getWidth() const;
 	virtual GLsizei getHeight() const;
+	virtual GLint getLayer() const { return mLayer; }
 	virtual GLenum getFormat() const;
 	virtual sw::Format getInternalFormat() const;
 	virtual GLsizei getSamples() const;
@@ -187,6 +189,7 @@ public:
 
 	GLsizei getWidth() const;
 	GLsizei getHeight() const;
+	GLint getLayer() const;
 	GLenum getFormat() const;
 	sw::Format getInternalFormat() const;
 	GLuint getRedSize() const;

src/OpenGL/libGLESv2/libGLESv2.cpp

@@ -2962,6 +2962,7 @@ void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenu
 
 		GLenum attachmentType;
 		GLuint attachmentHandle;
+		GLint attachmentLayer = 0;
 		Renderbuffer* renderbuffer = nullptr;
 		switch(attachment)
 		{
@@ -3001,6 +3002,7 @@ void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenu
 			}
 			attachmentType = framebuffer->getColorbufferType(attachment - GL_COLOR_ATTACHMENT0);
 			attachmentHandle = framebuffer->getColorbufferName(attachment - GL_COLOR_ATTACHMENT0);
+			attachmentLayer = framebuffer->getColorbufferLayer(attachment - GL_COLOR_ATTACHMENT0);
 			renderbuffer = framebuffer->getColorbuffer(attachment - GL_COLOR_ATTACHMENT0);
 			break;
 		case GL_DEPTH:
@@ -3096,6 +3098,13 @@ void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenu
 				return error(GL_INVALID_ENUM);
 			}
 			break;
+		case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
+			if(clientVersion >= 3)
+			{
+				*params = attachmentLayer;
+			}
+			else return error(GL_INVALID_ENUM);
+			break;
 		case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
 			if(clientVersion >= 3)
 			{