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use run-time dynamic linking for opengl32.dll to prevent random bugs where the game fails to start

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This commit is contained in:
FunkyFr3sh 2018-10-24 04:21:22 +02:00
parent 2754da2a30
commit 35ac845688
11 changed files with 6434 additions and 11155 deletions
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58
inc/opengl.h
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@ -1,8 +1,58 @@
#pragma once
#include <GL/gl.h>
#include <GL/glu.h>
#include "glext.h"
#include "glcorearb.h"
typedef HGLRC (APIENTRYP PFNWGLCREATECONTEXT)(HDC);
typedef BOOL (APIENTRYP PFNWGLDELETECONTEXT)(HGLRC);
typedef PROC (APIENTRYP PFNWGLGETPROCADDRESS)(LPCSTR);
typedef BOOL (APIENTRYP PFNWGLMAKECURRENT)(HDC, HGLRC);
extern PFNWGLCREATECONTEXT xwglCreateContext;
extern PFNWGLDELETECONTEXT xwglDeleteContext;
extern PFNWGLGETPROCADDRESS xwglGetProcAddress;
extern PFNWGLMAKECURRENT xwglMakeCurrent;
typedef void (APIENTRYP PFNGLVIEWPORT)(GLint x, GLint y, GLsizei width, GLsizei height);
typedef void (APIENTRYP PFNGLBINDTEXTURE)(GLenum target, GLuint texture);
typedef void (APIENTRYP PFNGLGENTEXTURES)(GLsizei n, GLuint *textures);
typedef void (APIENTRYP PFNGLTEXPARAMETERI)(GLenum target, GLenum pname, GLint param);
typedef void (APIENTRYP PFNGLDELETETEXTURES)(GLsizei n, const GLuint *textures);
typedef void (APIENTRYP PFNGLTEXIMAGE2D)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
typedef void (APIENTRYP PFNGLDRAWELEMENTS)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
typedef void (APIENTRYP PFNGLTEXSUBIMAGE2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
typedef GLenum (APIENTRYP PFNGLGETERROR)(void);
typedef const GLubyte * (APIENTRYP PFNGLGETSTRING)(GLenum name);
typedef void (APIENTRYP PFNGLGETTEXIMAGE)(GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels);
typedef void (APIENTRYP PFNGLPIXELSTOREI)(GLenum pname, GLint param);
extern PFNGLVIEWPORT glViewport;
extern PFNGLBINDTEXTURE glBindTexture;
extern PFNGLGENTEXTURES glGenTextures;
extern PFNGLTEXPARAMETERI glTexParameteri;
extern PFNGLDELETETEXTURES glDeleteTextures;
extern PFNGLTEXIMAGE2D glTexImage2D;
extern PFNGLDRAWELEMENTS glDrawElements;
extern PFNGLTEXSUBIMAGE2D glTexSubImage2D;
extern PFNGLGETERROR glGetError;
extern PFNGLGETSTRING glGetString;
extern PFNGLGETTEXIMAGE glGetTexImage;
extern PFNGLPIXELSTOREI glPixelStorei;
//compat profile only --->
#define GL_LUMINANCE 0x1909
#define GL_LUMINANCE8 0x8040
typedef void (APIENTRYP PFNGLBEGIN)(GLenum mode);
typedef void (APIENTRYP PFNGLEND)(void);
typedef void (APIENTRYP PFNGLTEXCOORD2F)(GLfloat s, GLfloat t);
typedef void (APIENTRYP PFNGLVERTEX2F)(GLfloat x, GLfloat y);
extern PFNGLBEGIN glBegin;
extern PFNGLEND glEnd;
extern PFNGLTEXCOORD2F glTexCoord2f;
extern PFNGLVERTEX2F glVertex2f;
// <--- compat profile only
BOOL OpenGL_LoadDll();
void OpenGL_Init();
BOOL OpenGL_ExtExists(char *ext, HDC hdc);
GLuint OpenGL_BuildProgram(const GLchar *vertSource, const GLchar *fragSource);
@ -75,6 +125,8 @@ extern PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB;
extern PFNGLTEXBUFFERPROC glTexBuffer;
extern HMODULE OpenGL_hModule;
extern BOOL OpenGL_GotVersion2;
extern BOOL OpenGL_GotVersion3;