Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 296 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/GL/glx/glxbuf.c b/nx-X11/programs/Xserver/GL/glx/glxbuf.c
new file mode 100644
index 000000000..44be53614
--- /dev/null
+++ b/nx-X11/programs/Xserver/GL/glx/glxbuf.c
@@ -0,0 +1,296 @@
+/* $XFree86: xc/programs/Xserver/GL/glx/glxbuf.c,v 1.6 2001/03/25 05:32:01 tsi Exp $ */
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+** 
+** http://oss.sgi.com/projects/FreeB
+** 
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+** 
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+** 
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "glxserver.h"
+#include "glxutil.h"
+#include "glxbuf.h"
+#include "glxfb.h"
+#include "glxmem.h"
+#include "glxpix.h"
+
+void
+__glXFBInitDrawable(__GLXdrawablePrivate *glxPriv, __GLcontextModes *modes)
+{
+    __GLdrawablePrivate *glPriv;
+    GLint rgbBits;
+    GLint accumBits;
+
+    glPriv = &glxPriv->glPriv;
+    rgbBits = modes->rgbBits;
+    accumBits = modes->accumRedBits + modes->accumGreenBits +
+	modes->accumBlueBits + modes->accumAlphaBits;
+
+#if defined(__GL_ALIGNED_BUFFERS)
+    /* initialize pixel alignments (for more details see context.h) */
+    glPriv->xAlignment = 1;
+    glPriv->yAlignment = 1;
+#endif
+
+    glxPriv->swapBuffers = __glXFBMemSwapBuffers;
+
+    glPriv->yInverted = GL_TRUE;	/* Y is upside-down */
+
+    if (modes->doubleBufferMode) {
+	if (modes->colorIndexMode) {
+	    __glXInitFB(&glPriv->frontBuffer, glPriv, modes->indexBits);
+	    __glXInitMem(&glPriv->backBuffer, glPriv, modes->indexBits);
+	} else {
+	    __glXInitFB(&glPriv->frontBuffer, glPriv, rgbBits);
+	    __glXInitMem(&glPriv->backBuffer, glPriv, rgbBits);
+	}
+    } else {
+	if (modes->colorIndexMode) {
+	    __glXInitFB(&glPriv->frontBuffer, glPriv, modes->indexBits);
+	} else {
+	    __glXInitFB(&glPriv->frontBuffer, glPriv, rgbBits);
+	}
+    }
+
+#if defined(__GL_MAX_AUXBUFFERS) && (__GL_MAX_AUXBUFFERS > 0)
+    if (modes->maxAuxBuffers > 0) {
+	GLint i;
+
+	for (i=0; i < modes->maxAuxBuffers; i++) {
+	    if (modes->colorIndexMode) {
+		__glXInitMem(&glPriv->auxBuffer[i], glPriv, modes->indexBits);
+	    } else {
+		__glXInitMem(&glPriv->auxBuffer[i], glPriv, rgbBits);
+	    }
+	}
+    }
+#endif
+
+    if (modes->haveAccumBuffer) {
+	__glXInitMem(&glPriv->accumBuffer, glPriv, accumBits);
+    }
+    if (modes->haveDepthBuffer) {
+	__glXInitMem(&glPriv->depthBuffer, glPriv, modes->depthBits);
+    }
+    if (modes->haveStencilBuffer) {
+	__glXInitMem(&glPriv->stencilBuffer, glPriv, modes->stencilBits);
+    }
+}
+
+void
+__glXPixInitDrawable(__GLXdrawablePrivate *glxPriv, __GLcontextModes *modes)
+{
+    __GLdrawablePrivate *glPriv;
+    GLint rgbBits;
+    GLint accumBits;
+
+    assert(glxPriv->pGlxPixmap);
+
+    glPriv = &glxPriv->glPriv;
+    rgbBits = modes->rgbBits;
+    accumBits = modes->accumRedBits + modes->accumGreenBits +
+	modes->accumBlueBits + modes->accumAlphaBits;
+
+#if defined(__GL_ALIGNED_BUFFERS)
+    /* initialize pixel alignments (for more details see context.h) */
+    glPriv->xAlignment = 1;
+    glPriv->yAlignment = 1;
+#endif
+
+    glxPriv->swapBuffers = (GLboolean (*)(__GLXdrawablePrivate *))__glXNop;
+
+    glPriv->yInverted = GL_FALSE;
+
+    if (modes->doubleBufferMode) {
+	if (modes->colorIndexMode) {
+	    __glXInitPix(&glPriv->frontBuffer, glPriv, rgbBits,
+			 glxPriv->drawId, glxPriv->pGlxPixmap);
+	    __glXInitMem(&glPriv->backBuffer, glPriv, modes->indexBits);
+	} else {
+	    __glXInitPix(&glPriv->frontBuffer, glPriv, rgbBits,
+			 glxPriv->drawId, glxPriv->pGlxPixmap);
+	    __glXInitMem(&glPriv->backBuffer, glPriv, rgbBits);
+	}
+    } else {
+	if (modes->colorIndexMode) {
+	    __glXInitPix(&glPriv->frontBuffer, glPriv, rgbBits, 
+			 glxPriv->drawId, glxPriv->pGlxPixmap);
+	} else {
+	    __glXInitPix(&glPriv->frontBuffer, glPriv, rgbBits,
+			 glxPriv->drawId, glxPriv->pGlxPixmap);
+	}
+    }
+
+#if defined(__GL_MAX_AUXBUFFERS) && (__GL_MAX_AUXBUFFERS > 0)
+    if (modes->maxAuxBuffers > 0) {
+	GLint i;
+
+	for (i=0; i < modes->maxAuxBuffers; i++) {
+	    if (modes->colorIndexMode) {
+		__glXInitMem(&glPriv->auxBuffer[i], glPriv, modes->indexBits);
+	    } else {
+		__glXInitMem(&glPriv->auxBuffer[i], glPriv, rgbBits);
+	    }
+	}
+    }
+#endif
+
+    if (modes->haveAccumBuffer) {
+	__glXInitMem(&glPriv->accumBuffer, glPriv, accumBits);
+    }
+    if (modes->haveDepthBuffer) {
+	__glXInitMem(&glPriv->depthBuffer, glPriv, modes->depthBits);
+    }
+    if (modes->haveStencilBuffer) {
+	__glXInitMem(&glPriv->stencilBuffer, glPriv, modes->stencilBits);
+    }
+}
+
+
+#define __GLX_SET_ACCEL_BUFFER_MASK(bm) \
+    if (status == GL_FALSE) return GL_FALSE; \
+    if (status == GL_TRUE) accelBufferMask |= bm; \
+    /* for __GL_BUFFER_FALLBACK don't do anything */
+
+GLboolean
+__glXResizeBuffers(__GLdrawablePrivate *glPriv,
+		   GLint x, GLint y, GLuint width, GLuint height)
+{
+    __GLcontextModes *modes;
+    __GLdrawableRegion *glRegion;
+    GLboolean status;
+    GLuint accelBufferMask;
+
+    modes = glPriv->modes;
+    accelBufferMask = 0;
+
+    status = (*glPriv->frontBuffer.resize)(&glPriv->frontBuffer,
+					   x, y, width, height, glPriv,
+					   __GL_FRONT_BUFFER_MASK);
+    __GLX_SET_ACCEL_BUFFER_MASK(__GL_FRONT_BUFFER_MASK);
+
+    if (modes->doubleBufferMode) {
+	status = (*glPriv->backBuffer.resize)(&glPriv->backBuffer,
+					      x, y, width, height, glPriv,
+					      __GL_BACK_BUFFER_MASK);
+	__GLX_SET_ACCEL_BUFFER_MASK(__GL_BACK_BUFFER_MASK);
+    }
+
+#if defined(__GL_MAX_AUXBUFFERS) && (__GL_MAX_AUXBUFFERS > 0)
+    if (modes->maxAuxBuffers > 0) {
+	GLint i;
+
+	for (i=0; i < modes->maxAuxBuffers; i++) {
+	    status = (*glPriv->auxBuffers[i].resize)(&glPriv->auxBuffer[i],
+						     x, y, width, height, 
+						     glPriv,
+						     __GL_AUX_BUFFER_MASK(i));
+	    __GLX_SET_ACCEL_BUFFER_MASK(__GL_AUX_BUFFER_MASK(i));
+	}
+    }
+#endif
+
+    if (modes->haveAccumBuffer) {
+	status = (*glPriv->accumBuffer.resize)(&glPriv->accumBuffer,
+					       x, y, width, height, glPriv,
+					       __GL_ACCUM_BUFFER_MASK);
+	__GLX_SET_ACCEL_BUFFER_MASK(__GL_ACCUM_BUFFER_MASK);
+    }
+
+    if (modes->haveDepthBuffer) {
+	status = (*glPriv->depthBuffer.resize)(&glPriv->depthBuffer,
+					       x, y, width, height, glPriv,
+					       __GL_DEPTH_BUFFER_MASK);
+	__GLX_SET_ACCEL_BUFFER_MASK(__GL_DEPTH_BUFFER_MASK);
+    }
+
+    if (modes->haveStencilBuffer) {
+	status = (*glPriv->stencilBuffer.resize)(&glPriv->stencilBuffer,
+						 x, y, width, height, glPriv,
+						 __GL_STENCIL_BUFFER_MASK);
+	__GLX_SET_ACCEL_BUFFER_MASK(__GL_STENCIL_BUFFER_MASK);
+    }
+
+    glPriv->accelBufferMask = accelBufferMask;
+
+    /* finally, update the ownership region */
+    glRegion = &glPriv->ownershipRegion;
+    glRegion->numRects = 1;
+    glRegion->rects[0].x0 = 0;
+    glRegion->rects[0].y0 = 0;
+    glRegion->rects[0].x1 = width;
+    glRegion->rects[0].y1 = height;
+
+    return GL_TRUE;
+}
+
+void
+__glXFreeBuffers(__GLXdrawablePrivate *glxPriv)
+{
+    __GLdrawablePrivate *glPriv = &glxPriv->glPriv;
+#if defined(__GL_MAX_AUXBUFFERS) && (__GL_MAX_AUXBUFFERS > 0)
+    __GLcontextModes *modes = glPriv->modes;
+#endif
+
+    if (glPriv->frontBuffer.free) {
+	(*glPriv->frontBuffer.free)(&glPriv->frontBuffer, glPriv);
+    }
+    if (glPriv->backBuffer.free) {
+	(*glPriv->backBuffer.free)(&glPriv->backBuffer, glPriv);
+    }
+
+#if defined(__GL_MAX_AUXBUFFERS) && (__GL_MAX_AUXBUFFERS > 0)
+    if (modes->maxAuxBuffers > 0) {
+	GLint i;
+
+	for (i=0; i < modes->maxAuxBuffers; i++) {
+	    if (glPriv->auxBuffer[i].free) {
+		(*glPriv->auxBuffer[i].free)(&glPriv->auxBuffer[i], glPriv);
+	    }
+	}
+    }
+#endif
+
+    if (glPriv->accumBuffer.free) {
+	(*glPriv->accumBuffer.free)(&glPriv->accumBuffer, glPriv);
+    }
+
+    if (glPriv->depthBuffer.free) {
+	(*glPriv->depthBuffer.free)(&glPriv->depthBuffer, glPriv);
+    }
+
+    if (glPriv->stencilBuffer.free) {
+	(*glPriv->stencilBuffer.free)(&glPriv->stencilBuffer, glPriv);
+    }
+}