wgl.h File Reference

Go to the source code of this file.

Macros
#define	QWGL_ARB_extensions_string   (1 << 0)
#define	QWGL_ARB_multisample   (1 << 1)
#define	QWGL_ARB_pixel_format   (1 << 2)
#define	QWGL_EXT_swap_control   (1 << 3)
#define	QWGL_EXT_swap_control_tear   (1 << 4)

Functions
qboolean	WGL_Init (const char *dllname)
void	WGL_Shutdown (void)
void	WGL_InitExtensions (unsigned mask)
void	WGL_ShutdownExtensions (unsigned mask)
unsigned	WGL_ParseExtensionString (const char *s)
	void (APIENTRY *qwglDrawBuffer)(GLenum mode)
const GLubyte *APIENTRY *	qwglGetString (GLenum name)
	int (WINAPI *qwglChoosePixelFormat)(HDC
	BOOL (WINAPI *qwglSetPixelFormat)(HDC
	HGLRC (WINAPI *qwglCreateContext)(HDC)
	PROC (WINAPI *qwglGetProcAddress)(LPCSTR)
const char *WINAPI *	qwglGetExtensionsStringARB (HDC hdc)

Variables
CONST PIXELFORMATDESCRIPTOR	int
CONST PIXELFORMATDESCRIPTOR	UINT
CONST PIXELFORMATDESCRIPTOR	LPPIXELFORMATDESCRIPTOR
	HGLRC

Macro Definition Documentation

QWGL_ARB_extensions_string

#define QWGL_ARB_extensions_string   (1 << 0)

Definition at line 23 of file wgl.h.

QWGL_ARB_multisample

#define QWGL_ARB_multisample   (1 << 1)

Definition at line 24 of file wgl.h.

QWGL_ARB_pixel_format

#define QWGL_ARB_pixel_format   (1 << 2)

Definition at line 25 of file wgl.h.

QWGL_EXT_swap_control

#define QWGL_EXT_swap_control   (1 << 3)

Definition at line 26 of file wgl.h.

QWGL_EXT_swap_control_tear

#define QWGL_EXT_swap_control_tear   (1 << 4)

Definition at line 27 of file wgl.h.

Function Documentation

BOOL()

BOOL

(

WINAPI *

qwglSetPixelFormat

)

HGLRC()

HGLRC

(

WINAPI *

qwglCreateContext

)

int()

int

(

WINAPI *

qwglChoosePixelFormat

)

PROC()

PROC

(

WINAPI *

qwglGetProcAddress

)

qwglGetExtensionsStringARB()

const char* WINAPI* qwglGetExtensionsStringARB

(

HDC

hdc

)

qwglGetString()

const GLubyte* APIENTRY* qwglGetString

(

GLenum

name

)

void()

void

(

APIENTRY *

qwglDrawBuffer

)

WGL_Init()

qboolean WGL_Init

(

const char *

dllname

)

Definition at line 66 of file wgl.c.

{
    if ((glw.hinstOpenGL = LoadLibrary(dllname)) == NULL) {
        return qfalse;
    }
 
    qwglDrawBuffer              = GPA("glDrawBuffer");
    qwglGetString               = GPA("glGetString");
 
    qwglChoosePixelFormat       = GPA("wglChoosePixelFormat");
    qwglDescribePixelFormat     = GPA("wglDescribePixelFormat");
    qwglSetPixelFormat          = GPA("wglSetPixelFormat");
    qwglSwapBuffers             = GPA("wglSwapBuffers");
 
    qwglCreateContext           = GPA("wglCreateContext");
    qwglDeleteContext           = GPA("wglDeleteContext");
    qwglGetProcAddress          = GPA("wglGetProcAddress");
    qwglMakeCurrent             = GPA("wglMakeCurrent");
 
    return qtrue;
}

Referenced by LoadGL().

WGL_InitExtensions()

void WGL_InitExtensions

(

unsigned

mask

)

Definition at line 105 of file wgl.c.

{
    if (mask & QWGL_ARB_extensions_string) {
        qwglGetExtensionsStringARB  = GPA("wglGetExtensionsStringARB");
    }
    if (mask & QWGL_ARB_pixel_format) {
        qwglChoosePixelFormatARB    = GPA("wglChoosePixelFormatARB");
    }
    if (mask & QWGL_EXT_swap_control) {
        qwglSwapIntervalEXT         = GPA("wglSwapIntervalEXT");
    }
}

Referenced by GetFakeWindowExtensions(), and VID_Init().

WGL_ParseExtensionString()

unsigned WGL_ParseExtensionString

(

const char *

s

)

Definition at line 120 of file wgl.c.

{
    // must match defines in win_wgl.h!
    static const char *const extnames[] = {
        "WGL_ARB_extensions_string",
        "WGL_ARB_multisample",
        "WGL_ARB_pixel_format",
        "WGL_EXT_swap_control",
        "WGL_EXT_swap_control_tear",
        NULL
    };
 
    return Com_ParseExtensionString(s, extnames);
}

Referenced by GetFakeWindowExtensions(), and VID_Init().

WGL_Shutdown()

void WGL_Shutdown

(

void

)

Definition at line 41 of file wgl.c.

{
    if (glw.hinstOpenGL) {
        FreeLibrary(glw.hinstOpenGL);
        glw.hinstOpenGL = NULL;
    }
 
    qwglDrawBuffer              = NULL;
    qwglGetString               = NULL;
 
    qwglChoosePixelFormat       = NULL;
    qwglDescribePixelFormat     = NULL;
    qwglSetPixelFormat          = NULL;
    qwglSwapBuffers             = NULL;
 
    qwglCreateContext           = NULL;
    qwglDeleteContext           = NULL;
    qwglGetProcAddress          = NULL;
    qwglMakeCurrent             = NULL;
 
    WGL_ShutdownExtensions(~0);
}

Referenced by LoadGL(), and VID_Shutdown().

WGL_ShutdownExtensions()

void WGL_ShutdownExtensions

(

unsigned

mask

)

Definition at line 90 of file wgl.c.

{
    if (mask & QWGL_ARB_extensions_string) {
        qwglGetExtensionsStringARB  = NULL;
    }
    if (mask & QWGL_ARB_pixel_format) {
        qwglChoosePixelFormatARB    = NULL;
    }
    if (mask & QWGL_EXT_swap_control) {
        qwglSwapIntervalEXT         = NULL;
    }
}

Referenced by WGL_Shutdown().

Variable Documentation

HGLRC

HGLRC

Definition at line 46 of file wgl.h.

int

int

Definition at line 39 of file wgl.h.

LPPIXELFORMATDESCRIPTOR

CONST PIXELFORMATDESCRIPTOR LPPIXELFORMATDESCRIPTOR

Definition at line 39 of file wgl.h.

UINT

const int const FLOAT UINT

Definition at line 39 of file wgl.h.