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-rw-r--r--src/menu/texture.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/src/menu/texture.cpp b/src/menu/texture.cpp
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+++ b/src/menu/texture.cpp
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+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#include "texture.hpp"
+
+namespace usdx
+{
+ log4cpp::Category& Texture::log =
+ log4cpp::Category::getInstance("usdx.base.texture");
+
+ Texture::Texture(boost::filesystem::wpath filename) :
+ filename(filename), texture(0), size(0, 0), rotation(0)
+ {
+ Image image(filename);
+
+ size.set_width(image.get_surface()->w);
+ size.set_height(image.get_surface()->h);
+
+ // // Check that the image dimensions are a power of 2
+ // if ((image.get_surface()->w & (image.get_surface()->w - 1)) != 0 ) {
+ // LOG4CXX_ERROR(log, "" << filename << " has a width of " << image.get_surface()->w << " that is not a power of 2");
+ // throw TextureSizeException(size);
+ // }
+
+ // if ((image.get_surface()->h & (image.get_surface()->h - 1)) != 0 ) {
+ // LOG4CXX_ERROR(log, "" << filename << " has a height of " << image.get_surface()->h << " that is not a power of 2");
+ // throw TextureSizeException(size);
+ // }
+
+
+ switch (image.get_surface()->format->BytesPerPixel) {
+ case 4:
+ if (image.get_surface()->format->Rmask == 0x000000ff) {
+ texture_format = GL_RGBA;
+ }
+ else {
+ texture_format = GL_BGRA;
+ }
+
+ break;
+
+ case 3:
+ if (image.get_surface()->format->Rmask == 0x000000ff) {
+ texture_format = GL_RGB;
+ }
+ else {
+ texture_format = GL_BGR;
+ }
+
+ break;
+
+ default:
+ log << log4cpp::Priority::ERROR << "'" << filename <<
+ "' is not in true color! Could not handle that!";
+ throw TextureColorDepthException(image.get_surface()->format->BytesPerPixel);
+ }
+
+ // Have OpenGL generate a texture object handle for us
+ glGenTextures(1, &texture);
+
+ // Bind the texture object
+ glBindTexture(GL_TEXTURE_2D, texture);
+
+ // Set the texture's stretching properties
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ // Edit the texture object's image data using the information SDL_Surface gives us
+ glTexImage2D(GL_TEXTURE_2D,
+ 0,
+ image.get_surface()->format->BytesPerPixel,
+ image.get_surface()->w,
+ image.get_surface()->h,
+ 0,
+ texture_format,
+ GL_UNSIGNED_BYTE,
+ image.get_surface()->pixels);
+ }
+
+ Texture::~Texture()
+ {
+ if (glIsTexture(texture)) {
+ glDeleteTextures(1, &texture);
+ }
+ }
+
+ GLuint Texture::get_texture(void) const
+ {
+ return texture;
+ }
+};