Changeset 3460 in vbox for trunk/src/VBox/Additions/WINNT

Timestamp:

Jul 5, 2007 12:56:04 PM (18 years ago)

Author:

vboxsync

Message:

Extension checks

Location:

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL

Files:

• VBoxOGL.cpp (modified) (1 diff)
• VBoxOGL.h (modified) (1 diff)
• drv.cpp (modified) (1 diff)
• glext.cpp (modified) (2 diffs)

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/VBoxOGL.cpp

@@ -470 +470 @@
     return parms.retval.u.value64;
 }
+
+/**
+ * Check if an OpenGL extension is available on the host
+ *
+ * @returns available or not
+ * @param   pszExtFunctionName  
+ */
+bool VBoxIsExtensionAvailable(const char *pszExtFunctionName)
+{
+    PVBOX_OGL_THREAD_CTX pCtx = VBoxOGLGetThreadCtx();
+    VBoxOGLglCheckExt parms;
+
+    AssertReturn(pCtx->pCurrentCmd > pCtx->pCmdBuffer, 0);
+
+    VBOX_INIT_CALL(&parms.hdr, GLCHECKEXT, pCtx);
+
+    parms.pszExtFnName.type                   = VMMDevHGCMParmType_LinAddr_In;
+    parms.pszExtFnName.u.Pointer.size         = strlen(pszExtFunctionName)+1;
+    parms.pszExtFnName.u.Pointer.u.linearAddr = (vmmDevHypPtr)pszExtFunctionName;
+
+    int rc = vboxHGCMCall(vboxOGLCtx.hGuestDrv, &parms, sizeof (parms));
+
+    if (    VBOX_FAILURE(rc)
+        ||  VBOX_FAILURE(parms.hdr.result))
+    {
+        DbgPrintf(("GLCHECKEXT failed with %x %x\n", rc, parms.hdr.result));
+        return false;
+    }
+
+    return true;
+}

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/VBoxOGL.h

@@ -198 +198 @@
 
 /**
+ * Check if an OpenGL extension is available on the host
+ *
+ * @returns available or not
+ * @param   pszExtFunctionName  
+ */
+bool VBoxIsExtensionAvailable(const char *pszExtFunctionName);
+
+/**
  * Query the specified cached parameter
  * 

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/drv.cpp

@@ -64 +64 @@
 
 
-
-PROC APIENTRY DrvGetProcAddress(LPCSTR lpszProc)
-{
-    PROC pfnProc = GetProcAddress(hDllVBoxOGL, lpszProc);
-    if (pfnProc == NULL)
-        DbgPrintf(("DrvGetProcAddress %s FAILED\n", lpszProc));
-    else
-        DbgPrintf(("DrvGetProcAddress %s\n", lpszProc));
-
-    return pfnProc;
-}
 
 BOOL APIENTRY DrvValidateVersion(DWORD version)

trunk/src/VBox/Additions/WINNT/Graphics/OpenGL/glext.cpp

@@ -25 +25 @@
 
 #include "VBoxOGL.h"
+#define WGL_WGLEXT_PROTOTYPES
 #include <VBox/HostServices/wglext.h>
+
+typedef struct
+{
+    const char *pszExtName;
+    const char *pszExtFunctionName;
+    RTUINTPTR   pfnFunction;
+    bool        fAvailable;
+} OPENGL_EXT, *POPENGL_EXT;
+
+static OPENGL_EXT OpenGLExtensions[] = 
+{
+    {   "WGL_EXT_swap_control",             "wglSwapIntervalEXT",               (RTUINTPTR)wglSwapIntervalEXT,                      false },
+    {   "WGL_EXT_swap_control",             "wglGetSwapIntervalEXT",            (RTUINTPTR)wglGetSwapIntervalEXT,                   false },
+};
+
+
+int vboxInitOpenGLExtensions()
+{
+    const GLubyte *pszExtensions = glGetString(GL_EXTENSIONS);
+
+    for (int i=0;i<RT_ELEMENTS(OpenGLExtensions);i++)
+    {
+        if (strstr((char *)pszExtensions, OpenGLExtensions[i].pszExtFunctionName))
+            OpenGLExtensions[i].fAvailable = VBoxIsExtensionAvailable(OpenGLExtensions[i].pszExtFunctionName);
+    }
+    return VINF_SUCCESS;
+}
+
+
+PROC APIENTRY DrvGetProcAddress(LPCSTR lpszProc)
+{
+    PROC pfnProc;
+
+    for (int i=0;i<RT_ELEMENTS(OpenGLExtensions);i++)
+    {
+        if (    OpenGLExtensions[i].fAvailable
+            && !strcmp(OpenGLExtensions[i].pszExtFunctionName, lpszProc))
+        {
+            pfnProc = (PROC)OpenGLExtensions[i].pfnFunction;
+        }
+    }
+    if (pfnProc == NULL)
+        DbgPrintf(("DrvGetProcAddress %s FAILED\n", lpszProc));
+    else
+        DbgPrintf(("DrvGetProcAddress %s\n", lpszProc));
+
+    return pfnProc;
+}
+
+BOOL WINAPI wglSwapIntervalEXT(int interval)
+{
+    VBOX_OGL_GEN_SYNC_OP1_RET(BOOL, wglSwapIntervalEXT, interval);
+    return retval;
+}
+
+int WINAPI wglGetSwapIntervalEXT(void)
+{
+    VBOX_OGL_GEN_SYNC_OP_RET(int, wglGetSwapIntervalEXT);
+    return retval;
+}
+
+
+
+
 
 #if 0
@@ -104 +169 @@
  GL_WIN_swap_hint 
  WGL_EXT_extensions_string 
- WGL_EXT_swap_control 
 #endif
 
-
-BOOL WINAPI wglSwapIntervalEXT(int interval)
-{
-    VBOX_OGL_GEN_SYNC_OP1_RET(BOOL, wglSwapIntervalEXT, interval);
-    return retval;
-}
-
-int WINAPI wglGetSwapIntervalEXT(void)
-{
-    VBOX_OGL_GEN_SYNC_OP_RET(int, wglGetSwapIntervalEXT);
-    return retval;
-}
-