Add ShaderManager and Shader class.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/render/shaders/shadersmanager.cpp b/src/render/shaders/shadersmanager.cpp
new file mode 100644
index 000000000..85c5bf64e
--- /dev/null
+++ b/src/render/shaders/shadersmanager.cpp
@@ -0,0 +1,62 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  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
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "render/shaders/shadersmanager.h"
+
+#ifdef USE_OPENGL
+
+#include "logger.h"
+#include "settings.h"
+
+#include "render/mgl.h"
+
+#include "render/shaders/shader.h"
+
+#include "utils/files.h"
+
+#include "debug.h"
+
+ShadersManager shaders;
+
+Shader *ShadersManager::createShader(const unsigned int type,
+                                     const std::string &fileName)
+{
+    const std::string str = Files::loadTextFileString(fileName);
+    const char *ptrStr = str.c_str();
+    GLuint shaderId = mglCreateShader(type);
+    mglShaderSource(shaderId, 1, &ptrStr, nullptr);
+    mglCompileShader(shaderId);
+
+    GLint isCompiled = 0;
+    mglGetShaderiv(shaderId, GL_COMPILE_STATUS, &isCompiled);
+    if (isCompiled == GL_TRUE)
+        return new Shader(shaderId);
+    GLint len = 0;
+    mglGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &len);
+    char *buf = new char[len + 1];
+    mglGetShaderInfoLog(shaderId, len, &len, buf);
+    buf[len] = 0;
+    logger->log("Shader '%s' compilation error: %s", fileName.c_str(), buf);
+    delete [] buf;
+    mglDeleteShader(shaderId);
+    return nullptr;
+}
+
+#endif