2 files changed, 75 insertions, 0 deletions
diff --git a/gl.cpp b/gl.cpp
new file mode 100644
index 0000000..c0bdcbb
--- /dev/null
+++ b/gl.cpp
@@ -0,0 +1,42 @@
+#include "gl.h"
+
+#ifdef WIN32
+
+/* program/shader */
+GLuint (APIENTRY *glCreateProgram)(void);
+void (APIENTRY *glLinkProgram)(GLuint);
+void (APIENTRY *glGetProgramiv)(GLuint, GLenum, GLint*);
+void (APIENTRY *glGetProgramInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
+void (APIENTRY *glUseProgram)(GLuint);
+void (APIENTRY *glDeleteProgram)(GLuint);
+
+GLuint (APIENTRY *glCreateShader)(GLenum);
+void (APIENTRY *glShaderSource)(GLuint, GLsizei, const GLchar**, const GLint*);
+void (APIENTRY *glCompileShader)(GLuint);
+void (APIENTRY *glGetShaderiv)(GLuint, GLenum, GLint*);
+void (APIENTRY *glGetShaderInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
+
+void (APIENTRY *glAttachShader)(GLuint, GLuint);
+void (APIENTRY *glDetachShader)(GLuint, GLuint);
+void (APIENTRY *glDeleteShader)(GLuint);
+
+void win32_gl_init() {
+	glCreateProgram = (GLuint(APIENTRY*)(void))wglGetProcAddress("glCreateProgram");
+	glLinkProgram = (void(APIENTRY*)(GLuint))wglGetProcAddress("glLinkProgram");
+	glGetProgramiv = (void(APIENTRY*)(GLuint, GLenum, GLint*))wglGetProcAddress("glGetProgramiv");
+	glGetProgramInfoLog = (void(APIENTRY*)(GLuint, GLsizei, GLsizei*, GLchar*))wglGetProcAddress("glGetProgramInfoLog");
+	glUseProgram = (void(APIENTRY*)(GLuint))wglGetProcAddress("glUseProgram");
+	glDeleteProgram = (void(APIENTRY*)(GLuint))wglGetProcAddress("glDeleteProgram");
+
+	glCreateShader = (GLuint(APIENTRY*)(GLenum))wglGetProcAddress("glCreateShader");
+	glShaderSource = (void(APIENTRY*)(GLuint, GLsizei, const GLchar**, const GLint*))wglGetProcAddress("glShaderSource");
+	glCompileShader = (void(APIENTRY*)(GLuint))wglGetProcAddress("glCompileShader");
+	glGetShaderiv = (void(APIENTRY*)(GLuint, GLenum, GLint*))wglGetProcAddress("glGetShaderiv");
+	glGetShaderInfoLog = (void(APIENTRY*)(GLuint, GLsizei, GLsizei*, GLchar*))wglGetProcAddress("glGetShaderInfoLog");
+
+	glAttachShader = (void(APIENTRY*)(GLuint, GLuint))wglGetProcAddress("glAttachShader");
+	glDetachShader = (void(APIENTRY*)(GLuint, GLuint))wglGetProcAddress("glDetachShader");
+	glDeleteShader = (void(APIENTRY*)(GLuint))wglGetProcAddress("glDeleteShader");
+}
+
+#endif
diff --git a/gl.h b/gl.h
index 87d321b..a06d6cb 100644
--- a/gl.h
+++ b/gl.h
@@ -3,4 +3,37 @@
 
 #include <SFML/Window/OpenGL.hpp>
 
+#ifdef WIN32
+#define GL_POINT_SPRITE                   0x8861
+#define GL_COORD_REPLACE                  0x8862
+#define GL_CLAMP_TO_EDGE                  0x812F
+
+#define GL_FRAGMENT_SHADER                0x8B30
+#define GL_VERTEX_SHADER                  0x8B31
+#define GL_COMPILE_STATUS                 0x8B81
+#define GL_LINK_STATUS                    0x8B82
+
+#define GLchar char
+
+/* program/shader */
+extern GLuint (APIENTRY *glCreateProgram)(void);
+extern void (APIENTRY *glLinkProgram)(GLuint);
+extern void (APIENTRY *glGetProgramiv)(GLuint, GLenum, GLint*);
+extern void (APIENTRY *glGetProgramInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
+extern void (APIENTRY *glUseProgram)(GLuint);
+extern void (APIENTRY *glDeleteProgram)(GLuint);
+
+extern GLuint (APIENTRY *glCreateShader)(GLenum);
+extern void (APIENTRY *glShaderSource)(GLuint, GLsizei, const GLchar**, const GLint*);
+extern void (APIENTRY *glCompileShader)(GLuint);
+extern void (APIENTRY *glGetShaderiv)(GLuint, GLenum, GLint*);
+extern void (APIENTRY *glGetShaderInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
+
+extern void (APIENTRY *glAttachShader)(GLuint, GLuint);
+extern void (APIENTRY *glDetachShader)(GLuint, GLuint);
+extern void (APIENTRY *glDeleteShader)(GLuint);
+
+void win32_gl_init();
+#endif
+
 #endif