-/* $Id: wgl.c,v 1.11 2006/01/25 06:02:55 kschultz Exp $ */
/*
* This library is free software; you can redistribute it and/or
/* We're essentially building part of GDI here, so define this so that
* we get the right export linkage. */
+#ifdef __MINGW32__
+
+#include <stdarg.h>
+#include <windef.h>
+#include <wincon.h>
+#include <winbase.h>
+
+# if defined(BUILD_GL32)
+# define WINGDIAPI __declspec(dllexport)
+# else
+# define __W32API_USE_DLLIMPORT__
+# endif
+
+#include <wingdi.h>
+#include "GL/mesa_wgl.h"
+#include <stdlib.h>
+
+#else
+
#define _GDI32_
#include <windows.h>
-#include "glapi.h"
-#include "GL/wmesa.h" /* protos for wmesa* functions */
+#endif
-typedef struct wmesa_context *PWMC;
+#include "glapi.h"
+#include "GL/wmesa.h" /* protos for wmesa* functions */
/*
* Pixel Format Descriptors
typedef struct {
WMesaContext ctx;
- HDC hdc;
} MesaWglCtx;
#define MESAWGL_CTX_MAX_COUNT 20
static int ctx_current = -1;
static unsigned curPFD = 0;
+static HDC CurrentHDC = 0;
+
+
WINGDIAPI HGLRC GLAPIENTRY wglCreateContext(HDC hdc)
{
int i = 0;
if (!ctx_count) {
for(i=0;i<MESAWGL_CTX_MAX_COUNT;i++) {
wgl_ctx[i].ctx = NULL;
- wgl_ctx[i].hdc = NULL;
}
}
for( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) {
GL_TRUE : GL_FALSE) );
if (wgl_ctx[i].ctx == NULL)
break;
- wgl_ctx[i].hdc = hdc;
ctx_count++;
return ((HGLRC)wgl_ctx[i].ctx);
}
{
int i;
for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) {
- if ( wgl_ctx[i].ctx == (PWMC) hglrc ){
- WMesaMakeCurrent((PWMC) hglrc);
- WMesaDestroyContext();
+ if ( wgl_ctx[i].ctx == (WMesaContext) hglrc ){
+ WMesaMakeCurrent((WMesaContext) hglrc, NULL);
+ WMesaDestroyContext(wgl_ctx[i].ctx);
wgl_ctx[i].ctx = NULL;
- wgl_ctx[i].hdc = NULL;
ctx_count--;
return(TRUE);
}
WINGDIAPI HDC GLAPIENTRY wglGetCurrentDC(VOID)
{
- if (ctx_current < 0)
- return 0;
- else
- return wgl_ctx[ctx_current].hdc;
+ return CurrentHDC;
}
-WINGDIAPI BOOL GLAPIENTRY wglMakeCurrent(HDC hdc,HGLRC hglrc)
+WINGDIAPI BOOL GLAPIENTRY wglMakeCurrent(HDC hdc, HGLRC hglrc)
{
int i;
+ CurrentHDC = hdc;
+
if (!hdc || !hglrc) {
- WMesaMakeCurrent(NULL);
+ WMesaMakeCurrent(NULL, NULL);
ctx_current = -1;
return TRUE;
}
for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) {
- if ( wgl_ctx[i].ctx == (PWMC) hglrc ) {
- wgl_ctx[i].hdc = hdc;
- WMesaMakeCurrent( (WMesaContext) hglrc );
+ if ( wgl_ctx[i].ctx == (WMesaContext) hglrc ) {
+ WMesaMakeCurrent( (WMesaContext) hglrc, hdc );
ctx_current = i;
return TRUE;
}
}
WINGDIAPI BOOL GLAPIENTRY wglSetPixelFormat(HDC hdc,int iPixelFormat,
- PIXELFORMATDESCRIPTOR *ppfd)
+ const PIXELFORMATDESCRIPTOR *ppfd)
{
(void) hdc;
WINGDIAPI BOOL GLAPIENTRY wglSwapBuffers(HDC hdc)
{
- (void) hdc;
- if (ctx_current < 0)
- return FALSE;
-
- if(wgl_ctx[ctx_current].ctx == NULL) {
- SetLastError(0);
- return(FALSE);
- }
- WMesaSwapBuffers();
- return(TRUE);
+ WMesaSwapBuffers(hdc);
+ return TRUE;
}
static FIXED FixedFromDouble(double d)
bitDevice = CreateCompatibleDC(fontDevice);
- // Swap fore and back colors so the bitmap has the right polarity
+ /* Swap fore and back colors so the bitmap has the right polarity */
tempColor = GetBkColor(bitDevice);
SetBkColor(bitDevice, GetTextColor(bitDevice));
SetTextColor(bitDevice, tempColor);
- // Place chars based on base line
+ /* Place chars based on base line */
VERIFY(SetTextAlign(bitDevice, TA_BASELINE) != GDI_ERROR ? 1 : 0);
for(i = 0; i < (int)numChars; i++) {
curChar = (char)(i + firstChar);
- // Find how high/wide this character is
+ /* Find how high/wide this character is */
VERIFY(GetTextExtentPoint32(bitDevice, &curChar, 1, &size));
- // Create the output bitmap
+ /* Create the output bitmap */
charWidth = size.cx;
charHeight = size.cy;
- // Round up to the next multiple of 32 bits
+ /* Round up to the next multiple of 32 bits */
bmapWidth = ((charWidth + 31) / 32) * 32;
bmapHeight = charHeight;
bitObject = CreateCompatibleBitmap(bitDevice,
bmapWidth,
bmapHeight);
- //VERIFY(bitObject);
+ /* VERIFY(bitObject); */
- // Assign the output bitmap to the device
+ /* Assign the output bitmap to the device */
origBmap = SelectObject(bitDevice, bitObject);
(void) VERIFY(origBmap);
VERIFY( PatBlt( bitDevice, 0, 0, bmapWidth, bmapHeight,BLACKNESS ) );
- // Use our source font on the device
+ /* Use our source font on the device */
VERIFY(SelectObject(bitDevice, GetCurrentObject(fontDevice,OBJ_FONT)));
- // Draw the character
+ /* Draw the character */
VERIFY(TextOut(bitDevice, 0, metric.tmAscent, &curChar, 1));
- // Unselect our bmap object
+ /* Unselect our bmap object */
VERIFY(SelectObject(bitDevice, origBmap));
- // Convert the display dependant representation to a 1 bit deep DIB
+ /* Convert the display dependant representation to a 1 bit deep DIB */
numBytes = (bmapWidth * bmapHeight) / 8;
bmap = malloc(numBytes);
dibInfo->bmiHeader.biWidth = bmapWidth;
res = GetDIBits(bitDevice, bitObject, 0, bmapHeight, bmap,
dibInfo,
DIB_RGB_COLORS);
- //VERIFY(res);
+ /* VERIFY(res); */
- // Create the GL object
+ /* Create the GL object */
glNewList(i + listBase, GL_COMPILE);
glBitmap(bmapWidth, bmapHeight, 0.0, (GLfloat)metric.tmDescent,
(GLfloat)charWidth, 0.0,
bmap);
glEndList();
- // CheckGL();
+ /* CheckGL(); */
- // Destroy the bmap object
+ /* Destroy the bmap object */
DeleteObject(bitObject);
- // Deallocate the bitmap data
+ /* Deallocate the bitmap data */
free(bmap);
}
- // Destroy the DC
+ /* Destroy the DC */
VERIFY(DeleteDC(bitDevice));
free(dibInfo);
projects / mesa.git / blobdiff