1 files changed, 140 insertions, 0 deletions
diff --git a/kue/texture.cpp b/kue/texture.cpp
new file mode 100644
index 00000000..cf753766
--- /dev/null
+++ b/kue/texture.cpp
@@ -0,0 +1,140 @@
+#include "texture.h"
+#include "config.h"
+
+#include <stdio.h>
+
+#include <GL/gl.h>
+#include <tqimage.h>
+#include <tqgl.h>
+#include <tdeglobal.h>
+#include <tdeconfig.h>
+#include <tqstring.h>
+#include <kstandarddirs.h>
+
+KueTexture::KueTexture(const TQString &filename)
+{
+	_filename = filename;
+	_texture_id = 0;
+
+	if (filename.isNull())
+	{
+		// filename == TQString::null is an alias for the null texture
+		_loaded = true;
+	}
+	else
+	{
+		_loaded = false;
+	}
+}
+
+KueTexture::KueTexture(unsigned int texture_id)
+{
+	_filename = TQString::null;
+	_texture_id = texture_id;
+	_loaded = true;
+}
+
+KueTexture::KueTexture(const KueTexture &t)
+{
+	// Is the texture file backed?
+	if (t._filename.isNull())
+	{
+		// This is easy, copy over the texture id
+		_texture_id = t._texture_id;
+		_loaded = true;
+	}
+	else
+	{
+		// Yes, copy over the filename
+		_filename = t._filename;
+		_loaded = false;
+	}
+}
+
+KueTexture KueTexture::null() {
+	return KueTexture(0);
+}
+
+KueTexture::~KueTexture()
+{
+	// We only "own" the texture ID if we were created from a filename
+	// Also check that we've allocated a valid texture ID. That means
+	// that the texture is loaded, and it's non-NULL.
+	// We don't use isNull(), because that forces a file load
+	if (_loaded && _texture_id && (!_filename.isNull()))
+	{
+		// Free a texture ID and its associated texture
+		glDeleteTextures(1, &_texture_id);
+	}
+}
+
+bool KueTexture::isNull()
+{
+	load();
+
+	return (_texture_id == 0);
+}
+
+void KueTexture::load()
+{
+	if (_loaded)
+	{
+		// The texture is already loaded, nothing to do here
+		return;
+	}
+
+	//  Get the full pathname for the texture
+	TQImage raw_image, gl_image;
+	TQString fullname;
+
+	// Find the real filename
+	fullname = TDEGlobal::dirs()->findResource("appdata", "textures/" + _filename + ".png");
+
+	// Try to load the file
+	if (raw_image.load(fullname)) 
+	{
+		gl_image = TQGLWidget::convertToGLFormat(raw_image);   
+
+		// Ask OpenGL for a new texture ID
+		glGenTextures(1, &_texture_id);
+
+		// Make it the current texture (blank right now)
+		glBindTexture(GL_TEXTURE_2D, _texture_id);
+
+		// Should we filter textures?
+		TDEGlobal::config()->setGroup("Graphics");
+		if (TDEGlobal::config()->readBoolEntry("Filter Textures", false))
+		{
+			// Yes, enable smooth scaling
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+		}
+		else
+		{
+			// No, enable fast scaling
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+		}
+
+		// Load the image data in to the texture
+		glTexImage2D(GL_TEXTURE_2D, 0, 3, gl_image.width(), gl_image.height(), 0,
+		             GL_RGBA, GL_UNSIGNED_BYTE, gl_image.bits());
+	}
+	else
+	{
+		// Unable to load image, use null texture
+		_texture_id = 0;
+	}
+
+	_loaded = true;
+}
+
+bool KueTexture::makeCurrent()
+{
+	load();
+
+	// Sets the current 2D texture, where 0 means no texture
+	glBindTexture(GL_TEXTURE_2D, _texture_id);
+
+	return true;
+}