1 files changed, 136 insertions, 0 deletions
diff --git a/src/render/mgl.h b/src/render/mgl.h
new file mode 100644
index 000000000..335ee48f1
--- /dev/null
+++ b/src/render/mgl.h
@@ -0,0 +1,136 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2012-2013  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/>.
+ */
+
+#ifndef MGL_H
+#define MGL_H
+
+#include "main.h"
+#ifdef USE_OPENGL
+
+#ifdef ANDROID
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#define APIENTRY GL_APIENTRY
+#else
+#ifndef USE_SDL2
+#define GL_GLEXT_PROTOTYPES 1
+#endif
+#include <SDL_opengl.h>
+#include <GL/glext.h>
+#endif
+
+#define GL_NUM_EXTENSIONS                 0x821D
+#define GL_DEPTH_ATTACHMENT               0x8D00
+#define GL_COLOR_ATTACHMENT0              0x8CE0
+#define GL_FRAMEBUFFER                    0x8D40
+#define GL_RENDERBUFFER                   0x8D41
+
+#ifndef GL_COMPRESSED_RGBA_ARB
+#define GL_COMPRESSED_RGBA_ARB            0x84EE
+#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT  0x83F3
+#define GL_COMPRESSED_RGBA_FXT1_3DFX      0x86B1
+#endif
+#ifndef GL_MAX_ELEMENTS_VERTICES
+#define GL_MAX_ELEMENTS_VERTICES          0x80E8
+#define GL_MAX_ELEMENTS_INDICES           0x80E9
+#endif
+
+#ifndef GL_DEBUG_OUTPUT
+#define GL_DEBUG_OUTPUT_SYNCHRONOUS       0x8242
+#define GL_DEBUG_OUTPUT                   0x92E0
+#define GL_DEBUG_SOURCE_API               0x8246
+#define GL_DEBUG_SOURCE_WINDOW_SYSTEM     0x8247
+#define GL_DEBUG_SOURCE_SHADER_COMPILER   0x8248
+#define GL_DEBUG_SOURCE_THIRD_PARTY       0x8249
+#define GL_DEBUG_SOURCE_APPLICATION       0x824A
+#define GL_DEBUG_SOURCE_OTHER             0x824B
+#define GL_DEBUG_TYPE_ERROR               0x824C
+#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR 0x824D
+#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR  0x824E
+#define GL_DEBUG_TYPE_PORTABILITY         0x824F
+#define GL_DEBUG_TYPE_PERFORMANCE         0x8250
+#define GL_DEBUG_TYPE_OTHER               0x8251
+#define GL_DEBUG_TYPE_MARKER              0x8268
+#define GL_DEBUG_SEVERITY_NOTIFICATION    0x826B
+#define GL_DEBUG_SEVERITY_HIGH            0x9146
+#define GL_DEBUG_SEVERITY_MEDIUM          0x9147
+#define GL_DEBUG_SEVERITY_LOW             0x9148
+#endif
+
+#define defNameE(name) extern name##_t m##name
+
+typedef void (APIENTRY *glGenRenderbuffers_t)(GLsizei, GLuint *);
+typedef void (APIENTRY *glBindRenderbuffer_t)(GLenum target,
+    GLuint renderbuffer);
+typedef void (APIENTRY *glRenderbufferStorage_t)(GLenum target,
+    GLenum internalformat, GLsizei width, GLsizei height);
+typedef void (APIENTRY *glGenFramebuffers_t)(GLsizei n, GLuint *framebuffers);
+typedef void (APIENTRY *glBindFramebuffer_t)(GLenum target,
+    GLuint framebuffer);
+typedef void (APIENTRY *glFramebufferTexture2D_t)(GLenum target,
+    GLenum attachment, GLenum textarget, GLuint texture, GLint level);
+typedef void (APIENTRY *glFramebufferRenderbuffer_t)(GLenum target,
+    GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+typedef void (APIENTRY *glDeleteFramebuffers_t) (GLsizei, const GLuint *);
+typedef void (APIENTRY *glDeleteRenderbuffers_t) (GLsizei, const GLuint *);
+typedef const GLubyte *(APIENTRY *glGetStringi_t) (GLenum, GLuint);
+typedef void (APIENTRY *glGenSamplers_t) (GLsizei count, GLuint *samplers);
+typedef void (APIENTRY *glDeleteSamplers_t)
+    (GLsizei count, const GLuint * samplers);
+typedef void (APIENTRY *glBindSampler_t) (GLuint unit, GLuint sampler);
+typedef void (APIENTRY *glSamplerParameteri_t)
+    (GLuint sampler, GLenum pname, GLint param);
+typedef void (APIENTRY *glDebugMessageControl_t) (GLenum source, GLenum type,
+    GLenum severity, GLsizei count, const GLuint* ids, GLboolean enabled);
+
+// callback
+typedef void (APIENTRY *GLDEBUGPROC_t) (GLenum source, GLenum type, GLuint id,
+    GLenum severity, GLsizei length, const GLchar *message, GLvoid *userParam);
+
+typedef void (APIENTRY *glDebugMessageCallback_t) (GLDEBUGPROC_t callback,
+    const void *userParam);
+
+defNameE(glGenRenderbuffers);
+defNameE(glBindRenderbuffer);
+defNameE(glRenderbufferStorage);
+defNameE(glGenFramebuffers);
+defNameE(glBindFramebuffer);
+defNameE(glFramebufferTexture2D);
+defNameE(glFramebufferRenderbuffer);
+defNameE(glDeleteFramebuffers);
+defNameE(glDeleteRenderbuffers);
+defNameE(glGetStringi);
+defNameE(glGenSamplers);
+defNameE(glDeleteSamplers);
+defNameE(glBindSampler);
+defNameE(glSamplerParameteri);
+defNameE(glDebugMessageControl);
+defNameE(glDebugMessageCallback);
+
+#ifdef WIN32
+typedef const char* (APIENTRY * wglGetExtensionsString_t) (HDC hdc);
+
+defNameE(wglGetExtensionsString);
+#else
+#define CALLBACK
+#endif
+
+#endif
+#endif  // MGL_H