# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1453494814 -7200
# Node ID 57050ca14de609bb667bfbb13c1776b2fe515bc9
# Parent  e831d38e6faa2e47b5ab87eb4207aa664d69428a
forgot to add texture.h/cc

diff -r e831d38e6faa -r 57050ca14de6 src/texture.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/texture.cc	Fri Jan 22 22:33:34 2016 +0200
@@ -0,0 +1,77 @@
+#include <GL/gl.h>
+#include <X11/Xlib.h>
+#include "texture.h"
+#include "logger.h"
+
+Texture::Texture()
+{
+	glGenTextures(1, &tex);
+	glBindTexture(GL_TEXTURE_2D, tex);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+	width = height = 0;
+}
+
+Texture::~Texture()
+{
+	if(tex) {
+		glDeleteTextures(1, &tex);
+	}
+}
+
+void Texture::set_image(int x, int y, unsigned char *pix)
+{
+	glBindTexture(GL_TEXTURE_2D, tex);
+
+	if(x == width && y == height) {
+		if(pix) {
+			glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, x, y, GL_BGRA, GL_UNSIGNED_BYTE, pix);
+		}
+
+	} else {
+		width = x;
+		height = y;
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, x, y, 0, GL_BGRA, GL_UNSIGNED_BYTE,
+				pix ? pix : 0);
+	}
+}
+
+void Texture::set_image(Display *dpy, Pixmap pixmap)
+{
+	Window root_ret;
+	int x, y;
+	unsigned int w, h, border, depth;
+	XGetGeometry(dpy, pixmap, &root_ret, &x, &y, &w, &h, &border, &depth);
+
+	XImage *ximg = XGetImage(dpy, pixmap, 0, 0, w, h, 0xffffffff, ZPixmap);
+	if(!ximg) {
+		log_error("XGetImage failed to create an image from the window pixmap\n");
+		return;
+	}
+
+	glBindTexture(GL_TEXTURE_2D, tex);
+
+	if((int)w == width && (int)h == height) {
+		glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_BGRA, GL_UNSIGNED_BYTE, ximg->data);
+	} else {
+		width = w;
+		height = h;
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, ximg->data);
+	}
+}
+
+int Texture::get_width() const
+{
+	return width;
+}
+
+int Texture::get_height() const
+{
+	return height;
+}
+
+unsigned int Texture::get_id() const
+{
+	return tex;
+}
diff -r e831d38e6faa -r 57050ca14de6 src/texture.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/texture.h	Fri Jan 22 22:33:34 2016 +0200
@@ -0,0 +1,24 @@
+#ifndef TEXTURE_H_
+#define TEXTURE_H_
+
+#include <X11/Xlib.h>
+
+class Texture {
+private:
+	unsigned int tex;
+	int width, height;
+
+public:
+	Texture();
+	~Texture();
+
+	void set_image(int x, int y, unsigned char *pix = 0);
+	void set_image(Display *dpy, Pixmap pixmap);
+
+	int get_width() const;
+	int get_height() const;
+
+	unsigned int get_id() const;
+};
+
+#endif	// TEXTURE_H_