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/* gl.cc
* This file is part of the Osirion project
*/
// SDL headers
#include <SDL/SDL.h>
#include "osiriongl.h"
namespace gl
{
typedef void (APIENTRY *glBegin_func)(GLenum);
typedef void (APIENTRY *glEnd_func)();
typedef void (APIENTRY *glViewport_func)(GLint, GLint, GLsizei, GLsizei);
typedef void (APIENTRY *glDepthMask_func)(GLenum);
typedef void (APIENTRY *glFrontFace_func)(GLenum);
typedef void (APIENTRY *glCullFace_func)(GLenum);
typedef void (APIENTRY *glShadeModel_func)(GLenum);
typedef void (APIENTRY *glEnable_func)(GLenum);
typedef void (APIENTRY *glClear_func)(GLbitfield);
typedef void (APIENTRY *glClearColor_func)(GLclampf, GLclampf, GLclampf,GLclampf);
typedef void (APIENTRY *glRotatef_func)(GLfloat, GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *glTranslatef_func)(GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *glScalef_func)(GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *glVertex3f_func)(GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *glPushMatrix_func)();
typedef void (APIENTRY *glPopMatrix_func)();
typedef void (APIENTRY *glColor4f_func)(GLfloat, GLfloat, GLfloat, GLfloat);
typedef void (APIENTRY *glMatrixMode_func)(GLenum);
typedef void (APIENTRY *glLoadIdentity_func)();
typedef void (APIENTRY *glFrustum_func)(GLdouble, GLdouble, GLdouble, GLdouble, GLdouble, GLdouble);
glBegin_func osglBegin = 0;
glEnd_func osglEnd = 0;
glViewport_func osglViewport = 0;
glDepthMask_func osglDepthMask = 0;
glFrontFace_func osglFrontFace = 0;
glCullFace_func osglCullFace = 0;
glShadeModel_func osglShadeModel = 0;
glEnable_func osglEnable = 0;
glClear_func osglClear = 0;
glClearColor_func osglClearColor = 0;
glRotatef_func osglRotatef = 0;
glTranslatef_func osglTranslatef = 0;
glScalef_func osglScalef = 0;
glVertex3f_func osglVertex3f = 0;
glPushMatrix_func osglPushMatrix = 0;
glPopMatrix_func osglPopMatrix = 0;
glColor4f_func osglColor4f = 0;
glMatrixMode_func osglMatrixMode = 0;
glLoadIdentity_func osglLoadIdentity = 0;
glFrustum_func osglFrustum = 0;
// ------------- INITIALIZE FUNCTION POINTERS --------------//
void init()
{
osglBegin = (glBegin_func) SDL_GL_GetProcAddress("glBegin");
osglEnd = (glEnd_func) SDL_GL_GetProcAddress("glEnd");
osglViewport = (glViewport_func) SDL_GL_GetProcAddress("glViewport");
osglDepthMask = (glDepthMask_func) SDL_GL_GetProcAddress("glDepthMask");
osglFrontFace = (glFrontFace_func) SDL_GL_GetProcAddress("glFrontFace");
osglCullFace = (glCullFace_func) SDL_GL_GetProcAddress("glCullFace");
osglShadeModel = (glShadeModel_func) SDL_GL_GetProcAddress("glShadeModel");
osglEnable = (glEnable_func) SDL_GL_GetProcAddress("glEnable");
osglClear = (glClear_func) SDL_GL_GetProcAddress("glClear");
osglClearColor = (glClearColor_func) SDL_GL_GetProcAddress("glClearColor");
osglRotatef = (glRotatef_func) SDL_GL_GetProcAddress("glRotatef");
osglTranslatef = (glTranslatef_func) SDL_GL_GetProcAddress("glTranslatef");
osglScalef = (glScalef_func) SDL_GL_GetProcAddress("glScalef");
osglVertex3f = (glVertex3f_func) SDL_GL_GetProcAddress("glVertex3f");
osglPushMatrix = (glPushMatrix_func) SDL_GL_GetProcAddress("glPushMatrix");
osglPopMatrix = (glPopMatrix_func) SDL_GL_GetProcAddress("glPopMatrix");
osglColor4f = (glColor4f_func) SDL_GL_GetProcAddress("glColor4f");
osglMatrixMode = (glMatrixMode_func) SDL_GL_GetProcAddress("glMatrixMode");
osglLoadIdentity = (glLoadIdentity_func) SDL_GL_GetProcAddress("glLoadIdentity");
osglFrustum = (glFrustum_func) SDL_GL_GetProcAddress("glFrustum");
}
void shutdown()
{
osglBegin = 0;
osglEnd = 0;
osglViewport = 0;
osglDepthMask = 0;
osglFrontFace = 0;
osglCullFace = 0;
osglShadeModel = 0;
osglEnable = 0;
osglClear = 0;
osglClearColor = 0;
osglRotatef = 0;
osglTranslatef = 0;
osglScalef = 0;
osglVertex3f = 0;
osglPushMatrix = 0;
osglPopMatrix = 0;
osglColor4f = 0;
osglMatrixMode = 0;
osglLoadIdentity = 0;
}
void begin(Primitive primitive) {
osglBegin(primitive);
}
void end() {
osglEnd();
}
void viewport(GLint x, GLint y, GLsizei width, GLsizei height)
{
osglViewport(x, y, width, height);
}
void depthmask(GLenum mode)
{
osglDepthMask(mode);
}
void frontface(GLenum mode)
{
osglFrontFace(mode);
}
void cullface(GLenum mode)
{
osglCullFace(mode);
}
void shademodel(GLenum mode)
{
osglShadeModel(mode);
}
void enable(GLenum cap)
{
osglEnable(cap);
}
void clear (GLbitfield mask) {
osglClear(mask);
}
void clearcolor(Color const & color) {
osglClearColor(color.red(), color.green(), color.blue(), color.alpha());
}
void clearcolor(const float r, const float g, const float b, const float a) {
osglClearColor(r,g,b, a);
}
void rotate(const float angle, const Vector3f& vector) {
osglRotatef(angle, vector[0], vector[1], vector[2]);
}
void rotate(const float angle, const float x, const float y, const float z) {
osglRotatef(angle, x, y, z);
}
void translate(const Vector3f& vector) {
osglTranslatef(vector[0], vector[1], vector[2]);
}
void translate(const float x, const float y, const float z) {
osglTranslatef(x, y, z);
}
void scale(const Vector3f& vector) {
osglScalef(vector[0], vector[1], vector[2]);
}
void scale(const float x, const float y, const float z) {
osglScalef(x, y, z);
}
void vertex(const Vector3f& vector) {
osglVertex3f(vector[0], vector[1], vector[2]);
}
void vertex(const float x, const float y, const float z) {
osglVertex3f(x, y, z);
}
void push() {
osglPushMatrix();
}
void pop() {
osglPopMatrix();
}
void color(const float r, const float g, const float b, const float a) {
osglColor4f(r,g,b,a);
}
void color(Color const & color) {
osglColor4f(color.red(), color.green(), color.blue(), color.alpha());
}
void matrixmode(GLenum mode) {
osglMatrixMode(mode);
}
void loadidentity() {
osglLoadIdentity();
}
void frustum(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble znear, GLdouble zfar)
{
osglFrustum(left, right, bottom, top, znear, zfar);
}
} // namespace gl
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