diff options
| author | Karl Schultz <[email protected]> | 2002-04-23 18:23:32 +0000 |
|---|---|---|
| committer | Karl Schultz <[email protected]> | 2002-04-23 18:23:32 +0000 |
| commit | e694a8765a2406838354e39d5c40dab5fbb744e9 (patch) | |
| tree | 72bd71093ffb3255b9a2581056a324bbebca18aa /include | |
| parent | 62c36a2ff39d775c1f1bc377b9ddbc69e2340799 (diff) | |
Fix up alpha buffer handling for Windows.
- add two new Pixel Format Descriptors that do not have alpha bits to
mirror the two that do.
- add logic to wglChoosePixelFormat to match PFD's with respect to alpha.
- Create/clear software alpha buffer as required.
Now a wgl or GLUT program can control the creation of a software alpha
buffer via the PFD or GLUT parms, respectively.
Diffstat (limited to 'include')
| -rw-r--r-- | include/GL/wmesa.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/include/GL/wmesa.h b/include/GL/wmesa.h index 94b61974c37..67ca17f7a4a 100644 --- a/include/GL/wmesa.h +++ b/include/GL/wmesa.h @@ -1,4 +1,4 @@ -/* $Id: wmesa.h,v 1.1 1999/08/19 00:55:40 jtg Exp $ */ +/* $Id: wmesa.h,v 1.2 2002/04/23 18:23:32 kschultz Exp $ */ /* * Mesa 3-D graphics library @@ -24,8 +24,17 @@ /* * $Log: wmesa.h,v $ - * Revision 1.1 1999/08/19 00:55:40 jtg - * Initial revision + * Revision 1.2 2002/04/23 18:23:32 kschultz + * Fix up alpha buffer handling for Windows. + * - add two new Pixel Format Descriptors that do not have alpha bits to + * mirror the two that do. + * - add logic to wglChoosePixelFormat to match PFD's with respect to alpha. + * - Create/clear software alpha buffer as required. + * Now a wgl or GLUT program can control the creation of a software alpha + * buffer via the PFD or GLUT parms, respectively. + * + * Revision 1.1.1.1 1999/08/19 00:55:40 jtg + * Imported sources * * Revision 3.2 1999/01/03 02:54:45 brianp * updated per Ted Jump @@ -101,13 +110,17 @@ typedef struct wmesa_context *WMesaContext; * GL_FALSE = color index mode * db_flag - GL_TRUE = double-buffered, * GL_FALSE = single buffered + * alpha_flag - GL_TRUE = create software alpha buffer, + * GL_FALSE = no software alpha buffer * * Note: Indexed mode requires double buffering under Windows. * * Return: a WMesa_context or NULL if error. */ extern WMesaContext WMesaCreateContext(HWND hWnd,HPALETTE* pPal, - GLboolean rgb_flag,GLboolean db_flag); + GLboolean rgb_flag, + GLboolean db_flag, + GLboolean alpha_flag); /* |