Files
OpenArena/mygl.cpp

99 lines
4.1 KiB
C++
Executable File

/***************************************************************************
* Copyright (C) 2001-2023 by Tom Hicks *
* headhunter3@gmail.com *
* *
* 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; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
// clang-format off
#include "mygl.h"
#include "Logger.h"
#include "bmp.h"
#include "strmanip.h"
#include "texture.h"
#include "tga.h"
// clang-format on
namespace OpenArena {
namespace {
using std::shared_ptr;
using std::string;
} // End namespace
void FreeGLTexture(GLuint& texture) {
glDeleteTextures(1, &texture);
}
bool LoadGLTexture(string fn, GLuint& texture, GLuint mag, GLuint min) {
string method_name = "OpenArena::LoadGLTexture(string, GLuint&, GLuint, GLuint) ";
if (Right(tolower(fn), 4) == ".bmp") {
Logger::LogDebug(method_name + "Loading a bitmap.");
shared_ptr<BitmapImage> bmp = BitmapImage::FromFile(fn);
Logger::LogDebug((string) "bitmap is " + (bmp ? "not null" : "null"));
TextureImage* texImage = bmp->ToTextureImage();
if (texImage) {
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, texImage->sizeX, texImage->sizeY, 0, texImage->type, GL_UNSIGNED_BYTE,
texImage->data);
if (texImage) // Just in case somehow the file was empty or unloadable
{
if (texImage->data) free(texImage->data);
free(texImage);
}
return true;
} else {
return false;
}
} else if (Right(tolower(fn), 4) == ".tga") {
Logger::LogDebug(method_name + "Loading a tga file.");
shared_ptr<TargaImage> tga = TargaImage::FromFile(fn);
Logger::LogDebug(method_name + "tga is " + (tga ? "not null" : "null"));
TextureImage* texImage = tga->FromFile(fn)->ToTextureImage();
Logger::LogDebug(method_name + "texImage is " + (texImage ? "not null" : "null"));
if ((texImage)) {
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexImage2D(GL_TEXTURE_2D, 0, 3, texImage->sizeX, texImage->sizeY, 0, texImage->type, GL_UNSIGNED_BYTE,
texImage->data);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
if (texImage) // Just in case somehow the file was empty or unloadable
{
if (texImage->data) free(texImage->data);
free(texImage);
}
Logger::LogDebug(method_name + "returning true");
return true;
} else {
Logger::LogDebug(method_name + "returning false from 1");
return false;
}
} else {
Logger::LogDebug(method_name + "returning false from 2");
return false;
}
}
OpenArena::Window* g_Screen = new OpenArena::Window();
} // End namespace OpenArena