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Diffstat (limited to 'src/mesa/drivers/x11/fakeglx.c')
-rw-r--r--src/mesa/drivers/x11/fakeglx.c107
1 files changed, 100 insertions, 7 deletions
diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index 02be789f0f..538793f9b4 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -1,4 +1,4 @@
-/* $Id: fakeglx.c,v 1.16 1999/11/22 22:17:06 brianp Exp $ */
+/* $Id: fakeglx.c,v 1.17 1999/11/25 17:37:49 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -1056,18 +1056,24 @@ GLXContext Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
}
-static GLXDrawable MakeCurrent_PrevDrawable = 0;
static GLXContext MakeCurrent_PrevContext = 0;
-static XMesaBuffer MakeCurrent_PrevBuffer = 0;
+static GLXDrawable MakeCurrent_PrevDrawable = 0;
+static GLXDrawable MakeCurrent_PrevReadable = 0;
+static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0;
+static XMesaBuffer MakeCurrent_PrevReadBuffer = 0;
Bool Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
{
+#if 1
+ return Fake_glXMakeContextCurrent( dpy, drawable, drawable, ctx );
+#endif
+#if 0
if (ctx && drawable) {
XMesaBuffer buffer;
XMesaContext xmctx = (XMesaContext) ctx;
if (drawable==MakeCurrent_PrevDrawable && ctx==MakeCurrent_PrevContext) {
- buffer = MakeCurrent_PrevBuffer;
+ buffer = MakeCurrent_PrevDrawBuffer;
}
else {
buffer = XMesaFindBuffer( dpy, drawable );
@@ -1082,7 +1088,7 @@ Bool Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
}
MakeCurrent_PrevContext = ctx;
MakeCurrent_PrevDrawable = drawable;
- MakeCurrent_PrevBuffer = buffer;
+ MakeCurrent_PrevDrawBuffer = buffer;
/* Now make current! */
return (Bool) XMesaMakeCurrent( (XMesaContext) ctx, buffer );
@@ -1092,13 +1098,98 @@ Bool Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
XMesaMakeCurrent( NULL, NULL );
MakeCurrent_PrevContext = 0;
MakeCurrent_PrevDrawable = 0;
- MakeCurrent_PrevBuffer = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
return True;
}
else {
/* ctx XOR drawable is NULL, this is an error */
return False;
}
+#endif
+}
+
+
+
+/* GLX 1.3 and later */
+Bool Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
+ GLXDrawable read, GLXContext ctx )
+{
+ if (ctx && draw && read) {
+ XMesaBuffer drawBuffer, readBuffer;
+ XMesaContext xmctx = (XMesaContext) ctx;
+
+ /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
+ if (ctx == MakeCurrent_PrevContext
+ && draw == MakeCurrent_PrevDrawable) {
+ drawBuffer = MakeCurrent_PrevDrawBuffer;
+ }
+ else {
+ drawBuffer = XMesaFindBuffer( dpy, draw );
+ }
+ if (!drawBuffer) {
+ /* drawable must be a new window! */
+ drawBuffer = XMesaCreateWindowBuffer2( xmctx->xm_visual, draw, ctx );
+ if (!drawBuffer) {
+ /* Out of memory, or context/drawable depth mismatch */
+ return False;
+ }
+ }
+
+ /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
+ if (ctx == MakeCurrent_PrevContext
+ && read == MakeCurrent_PrevReadable) {
+ readBuffer = MakeCurrent_PrevReadBuffer;
+ }
+ else {
+ readBuffer = XMesaFindBuffer( dpy, read );
+ }
+ if (!readBuffer) {
+ /* drawable must be a new window! */
+ readBuffer = XMesaCreateWindowBuffer2( xmctx->xm_visual, read, ctx );
+ if (!readBuffer) {
+ /* Out of memory, or context/drawable depth mismatch */
+ return False;
+ }
+ }
+
+ MakeCurrent_PrevContext = ctx;
+ MakeCurrent_PrevDrawable = draw;
+ MakeCurrent_PrevReadable = read;
+ MakeCurrent_PrevDrawBuffer = drawBuffer;
+ MakeCurrent_PrevReadBuffer = readBuffer;
+
+ /* Now make current! */
+ return (Bool) XMesaMakeCurrent2((XMesaContext) ctx, drawBuffer, readBuffer);
+ }
+ else if (!ctx && !draw && !read) {
+ /* release current context w/out assigning new one. */
+ XMesaMakeCurrent( NULL, NULL );
+ MakeCurrent_PrevContext = 0;
+ MakeCurrent_PrevDrawable = 0;
+ MakeCurrent_PrevReadable = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
+ MakeCurrent_PrevReadBuffer = 0;
+ return True;
+ }
+ else {
+ /* The args must either all be non-zero or all zero.
+ * This is an error.
+ */
+ return False;
+ }
+}
+
+
+/* GLX 1.3 and later */
+GLXDrawable Fake_glXGetCurrentReadDrawable( void )
+{
+ XMesaBuffer b = XMesaGetCurrentReadBuffer();
+ if (b) {
+ return b->frontbuffer;
+ }
+ else {
+ return 0;
+ }
}
@@ -1198,7 +1289,9 @@ void Fake_glXDestroyContext( Display *dpy, GLXContext ctx )
(void) dpy;
MakeCurrent_PrevContext = 0;
MakeCurrent_PrevDrawable = 0;
- MakeCurrent_PrevBuffer = 0;
+ MakeCurrent_PrevReadable = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
+ MakeCurrent_PrevReadBuffer = 0;
XMesaDestroyContext( (XMesaContext) ctx );
XMesaGarbageCollect();
}