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#ifndef _H_os_gl
#define _H_os_gl
#include"os_predef.h"
#include"os_proprietary.h"
// hardcode either true, or (x)
#define ALWAYS_IMMEDIATE_OR(x) true
#if 1
#define _PYMOL_NO_AA_SHADERS
#endif
#ifndef PURE_OPENGL_ES_2
#define _PYMOL_ARB_SHADERS
#endif
#if !defined(GL_GLEXT_PROTOTYPES) && !defined(_WIN32)
#define GL_GLEXT_PROTOTYPES
#endif
#ifndef GLEW_NO_GLU
#define GLEW_NO_GLU
#endif
#ifndef PURE_OPENGL_ES_2
#include <GL/glew.h>
#endif
#ifdef PURE_OPENGL_ES_2
#include "os_gl_es.h"
#elif defined(_PYMOL_OSX)
#import <OpenGL/gl.h>
#import <OpenGL/glext.h>
#else
#include <GL/gl.h>
#endif
#include "os_gl_glut.h"
void PyMOLReadPixels(GLint x,
GLint y,
GLsizei width,
GLsizei height, GLenum format, GLenum type, GLvoid * pixels);
void PyMOLDrawPixels(GLsizei width,
GLsizei height, GLenum format, GLenum type, const GLvoid * pixels);
int PyMOLCheckOpenGLErr(const char *pos);
#if defined(_PYMOL_IOS) && !defined(_WEBGL)
#define GL_C_INT_TYPE ushort
#define GL_C_INT_ENUM GL_UNSIGNED_SHORT
#define SceneGLClearColor(red,green,blue,alpha) if (!SceneGetBackgroundColorAlreadySet(G)) glClearColor(red,green,blue,alpha);
#else
#define GL_C_INT_TYPE uint
#define GL_C_INT_ENUM GL_UNSIGNED_INT
#define SceneGLClearColor(red,green,blue,alpha) glClearColor(red,green,blue,alpha);
#endif
#ifndef GL_FRAGMENT_PROGRAM_ARB
#define GL_FRAGMENT_PROGRAM_ARB 0x8804
#endif
#ifndef GLAPIENTRY
#define GLAPIENTRY
#endif
#define hasFrameBufferBinding() false
#ifndef PURE_OPENGL_ES_2
#define GL_DEBUG_PUSH(title) \
GLEW_KHR_debug ? glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, title) : (void)0
#define GL_DEBUG_POP() \
GLEW_KHR_debug ? glPopDebugGroup() : (void)0
#ifdef __cplusplus
class glDebugBlock {
public:
explicit glDebugBlock(char const* title) {
GL_DEBUG_PUSH(title);
}
~glDebugBlock() {
GL_DEBUG_POP();
}
};
#define GL_DEBUG_FUN() \
glDebugBlock glDebugBlockVariable(__FUNCTION__)
#endif /* __cplusplus */
#else
#define GL_DEBUG_FUN()
#endif
#endif
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