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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/GL/glx/glxutil.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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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
Diffstat (limited to 'nx-X11/programs/Xserver/GL/glx/glxutil.c')
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1 files changed, 507 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/GL/glx/glxutil.c b/nx-X11/programs/Xserver/GL/glx/glxutil.c
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@@ -0,0 +1,507 @@
+/* $XFree86: xc/programs/Xserver/GL/glx/glxutil.c,v 1.5 2001/03/21 16:29:37 dawes 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.
+**
+*/
+
+#define NEED_REPLIES
+#define FONT_PCF
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "glxserver.h"
+#include <GL/glxtokens.h>
+#include <unpack.h>
+#include <pixmapstr.h>
+#include <windowstr.h>
+#include "glxutil.h"
+#include "glxbuf.h"
+#include "GL/glx_ansic.h"
+#include "GL/internal/glcore.h"
+#include "GL/glxint.h"
+#include "glcontextmodes.h"
+
+/************************************************************************/
+
+void __glXNop(void) {}
+
+/************************************************************************/
+
+/* Memory Allocation for GLX */
+
+void *
+__glXMalloc(size_t size)
+{
+ void *addr;
+
+ if (size == 0) {
+ return NULL;
+ }
+ addr = (void *) xalloc(size);
+ if (addr == NULL) {
+ /* XXX: handle out of memory error */
+ return NULL;
+ }
+ return addr;
+}
+
+void *
+__glXCalloc(size_t numElements, size_t elementSize)
+{
+ void *addr;
+ size_t size;
+
+ if ((numElements == 0) || (elementSize == 0)) {
+ return NULL;
+ }
+ size = numElements * elementSize;
+ addr = (void *) xalloc(size);
+ if (addr == NULL) {
+ /* XXX: handle out of memory error */
+ return NULL;
+ }
+ __glXMemset(addr, 0, size);
+ return addr;
+}
+
+void *
+__glXRealloc(void *addr, size_t newSize)
+{
+ void *newAddr;
+
+ if (addr) {
+ if (newSize == 0) {
+ xfree(addr);
+ return NULL;
+ } else {
+ newAddr = xrealloc(addr, newSize);
+ }
+ } else {
+ if (newSize == 0) {
+ return NULL;
+ } else {
+ newAddr = xalloc(newSize);
+ }
+ }
+ if (newAddr == NULL) {
+ return NULL; /* XXX: out of memory */
+ }
+
+ return newAddr;
+}
+
+void
+__glXFree(void *addr)
+{
+ if (addr) {
+ xfree(addr);
+ }
+}
+
+/************************************************************************/
+/* Context stuff */
+
+
+/*
+** associate a context with a drawable
+*/
+void
+__glXAssociateContext(__GLXcontext *glxc)
+{
+ glxc->nextDrawPriv = glxc->drawPriv->drawGlxc;
+ glxc->drawPriv->drawGlxc = glxc;
+
+ __glXRefDrawablePrivate(glxc->drawPriv);
+
+
+ glxc->nextReadPriv = glxc->readPriv->readGlxc;
+ glxc->readPriv->readGlxc = glxc;
+
+ __glXRefDrawablePrivate(glxc->readPriv);
+}
+
+/*
+** Deassociate a context from a drawable
+*/
+void
+__glXDeassociateContext(__GLXcontext *glxc)
+{
+ __GLXcontext *curr, *prev;
+
+ prev = NULL;
+ for ( curr = glxc->drawPriv->drawGlxc
+ ; curr != NULL
+ ; prev = curr, curr = curr->nextDrawPriv ) {
+ if (curr == glxc) {
+ /* found context. Deassociate. */
+ if (prev == NULL) {
+ glxc->drawPriv->drawGlxc = curr->nextDrawPriv;
+ } else {
+ prev->nextDrawPriv = curr->nextDrawPriv;
+ }
+ curr->nextDrawPriv = NULL;
+ __glXUnrefDrawablePrivate(glxc->drawPriv);
+ break;
+ }
+ }
+
+
+ prev = NULL;
+ for ( curr = glxc->readPriv->readGlxc
+ ; curr != NULL
+ ; prev = curr, curr = curr->nextReadPriv ) {
+ if (curr == glxc) {
+ /* found context. Deassociate. */
+ if (prev == NULL) {
+ glxc->readPriv->readGlxc = curr->nextReadPriv;
+ } else {
+ prev->nextReadPriv = curr->nextReadPriv;
+ }
+ curr->nextReadPriv = NULL;
+ __glXUnrefDrawablePrivate(glxc->readPriv);
+ break;
+ }
+ }
+}
+
+/************************************************************************/
+
+void
+__glXGetDrawableSize(__GLdrawablePrivate *glPriv,
+ GLint *x, GLint *y, GLuint *width, GLuint *height)
+{
+ __GLXdrawablePrivate *glxPriv = (__GLXdrawablePrivate *)glPriv->other;
+
+ if (glxPriv) {
+ *x = glxPriv->xorigin;
+ *y = glxPriv->yorigin;
+ *width = glxPriv->width;
+ *height = glxPriv->height;
+ } else {
+ *x = *y = *width = *height = 0;
+ }
+}
+
+GLboolean
+__glXResizeDrawable(__GLdrawablePrivate *glPriv)
+{
+ /* nothing to be done here */
+ return GL_TRUE;
+}
+
+
+/*****************************************************************************/
+/* accessing the drawable private */
+
+static void
+LockDP(__GLdrawablePrivate *glPriv, __GLcontext *gc)
+{
+ __GLinterface *glci = (__GLinterface *) gc;
+ __GLXcontext *glxc = (__GLXcontext *) glci->imports.other;
+
+ /* quick exit test */
+ if ((glxc->pendingState &
+ (__GLX_PENDING_RESIZE |
+ __GLX_PENDING_DESTROY |
+ __GLX_PENDING_SWAP)) == 0x0)
+ return;
+
+ /* some pending state. Deal with it */
+ if (glxc->pendingState & __GLX_PENDING_RESIZE) {
+ glxc->pendingState &= ~__GLX_PENDING_RESIZE;
+
+ (*glci->exports.notifyResize)(gc);
+ assert((glxc->pendingState & __GLX_PENDING_RESIZE) == 0x0);
+ }
+ if (glxc->pendingState & __GLX_PENDING_DESTROY) {
+ glxc->pendingState &= ~__GLX_PENDING_DESTROY;
+
+ assert(glxc->drawPriv->xorigin == 0);
+ assert(glxc->drawPriv->yorigin == 0);
+ assert(glxc->drawPriv->width == 0);
+ assert(glxc->drawPriv->height == 0);
+ assert(glxc->readPriv->xorigin == 0);
+ assert(glxc->readPriv->yorigin == 0);
+ assert(glxc->readPriv->width == 0);
+ assert(glxc->readPriv->height == 0);
+ (*glci->exports.notifyDestroy)(gc);
+ __glXDeassociateContext(glxc);
+ assert((glxc->pendingState & __GLX_PENDING_DESTROY) == 0x0);
+ }
+ if (glxc->pendingState & __GLX_PENDING_SWAP) {
+
+ glxc->pendingState &= ~__GLX_PENDING_SWAP;
+
+ (*glci->exports.notifySwapBuffers)(gc);
+ assert((glxc->pendingState & __GLX_PENDING_SWAP) == 0x0);
+ }
+}
+
+static void
+UnlockDP(__GLdrawablePrivate *glPriv)
+{
+}
+
+/*****************************************************************************/
+/* Drawable private stuff */
+
+void
+__glXRefDrawablePrivate(__GLXdrawablePrivate *glxPriv)
+{
+ glxPriv->refCount++;
+}
+
+void
+__glXUnrefDrawablePrivate(__GLXdrawablePrivate *glxPriv)
+{
+ glxPriv->refCount--;
+ if (glxPriv->refCount == 0) {
+ __glXDestroyDrawablePrivate(glxPriv);
+ }
+}
+
+__GLXdrawablePrivate *
+__glXCreateDrawablePrivate(DrawablePtr pDraw, XID drawId,
+ __GLcontextModes *modes)
+{
+ __GLXdrawablePrivate *glxPriv;
+ __GLdrawablePrivate *glPriv;
+ __GLXscreenInfo *pGlxScreen;
+
+ glxPriv = (__GLXdrawablePrivate *) __glXMalloc(sizeof(*glxPriv));
+ __glXMemset(glxPriv, 0, sizeof(__GLXdrawablePrivate));
+
+ glxPriv->type = pDraw->type;
+ glxPriv->pDraw = pDraw;
+ glxPriv->drawId = drawId;
+
+ /* if not a pixmap, lookup will fail, so pGlxPixmap will be NULL */
+ glxPriv->pGlxPixmap = (__GLXpixmap *)
+ LookupIDByType(drawId, __glXPixmapRes);
+ /* since we are creating the drawablePrivate, drawId should be new */
+ if (!AddResource(drawId, __glXDrawableRes, glxPriv)) {
+ /* oops! */
+ __glXFree(glxPriv);
+ return NULL;
+ }
+
+ /* fill up glPriv */
+ glPriv = &glxPriv->glPriv;
+ glPriv->modes = (__GLcontextModes *) __glXMalloc(sizeof(__GLcontextModes));
+ *glPriv->modes = *modes;
+ glPriv->malloc = __glXMalloc;
+ glPriv->calloc = __glXCalloc;
+ glPriv->realloc = __glXRealloc;
+ glPriv->free = __glXFree;
+ glPriv->addSwapRect = NULL;
+ glPriv->setClipRect = (void (*)(__GLdrawablePrivate *, GLint, GLint, GLsizei, GLsizei)) __glXNop;
+ glPriv->lockDP = LockDP;
+ glPriv->unlockDP = UnlockDP;
+ glPriv->getDrawableSize = __glXGetDrawableSize;
+ glPriv->resize = __glXResizeDrawable;
+ glPriv->other = glxPriv;
+
+ /* allocate a one-rect ownership region */
+ glPriv->ownershipRegion.rects =
+ (__GLregionRect *)__glXCalloc(1, sizeof(__GLregionRect));
+ glPriv->ownershipRegion.numRects = 1;
+
+ glxPriv->freeBuffers = __glXFreeBuffers;
+ glxPriv->updatePalette = (void (*)(__GLXdrawablePrivate *)) __glXNop;
+
+ pGlxScreen = &__glXActiveScreens[pDraw->pScreen->myNum];
+
+ if (glxPriv->type == DRAWABLE_WINDOW) {
+ VisualID vid = wVisual((WindowPtr)pDraw);
+
+ glxPriv->modes = _gl_context_modes_find_visual( pGlxScreen->modes, vid );
+ __glXFBInitDrawable(glxPriv, modes);
+ } else {
+ glxPriv->modes = glxPriv->pGlxPixmap->modes;
+ __glXPixInitDrawable(glxPriv, modes);
+ }
+
+ /* initialize the core's private buffer information */
+ (*pGlxScreen->createBuffer)(glxPriv);
+
+ return glxPriv;
+}
+
+GLboolean
+__glXDestroyDrawablePrivate(__GLXdrawablePrivate *glxPriv)
+{
+ __GLdrawablePrivate *glPriv = &glxPriv->glPriv;
+
+ /* remove the drawable from the drawable list */
+ FreeResourceByType(glxPriv->drawId, __glXDrawableRes, FALSE);
+
+ /* Have the core free any memory it may have attached to the drawable */
+ if (glPriv->freePrivate) {
+ (*glPriv->freePrivate)(glPriv);
+ }
+
+ /* Free any framebuffer memory attached to the drawable */
+ if (glxPriv->freeBuffers) {
+ (*glxPriv->freeBuffers)(glxPriv);
+ }
+
+ /* Free the drawable Private */
+ __glXFree(glxPriv->glPriv.modes);
+ __glXFree(glxPriv->glPriv.ownershipRegion.rects);
+ __glXFree(glxPriv);
+
+ return GL_TRUE;
+}
+
+__GLXdrawablePrivate *
+__glXFindDrawablePrivate(XID drawId)
+{
+ __GLXdrawablePrivate *glxPriv;
+
+ glxPriv = (__GLXdrawablePrivate *)LookupIDByType(drawId, __glXDrawableRes);
+
+ return glxPriv;
+}
+
+__GLXdrawablePrivate *
+__glXGetDrawablePrivate(DrawablePtr pDraw, XID drawId,
+ __GLcontextModes *modes)
+{
+ __GLXdrawablePrivate *glxPriv;
+
+ glxPriv = __glXFindDrawablePrivate(drawId);
+
+ if (glxPriv == NULL) {
+ glxPriv = __glXCreateDrawablePrivate(pDraw, drawId, modes);
+ if (glxPriv) {
+ __glXRefDrawablePrivate(glxPriv);
+ }
+ }
+
+ return glxPriv;
+}
+
+void
+__glXCacheDrawableSize(__GLXdrawablePrivate *glxPriv)
+{
+ if (glxPriv) {
+ if (glxPriv->pDraw) {
+ glxPriv->xorigin = glxPriv->pDraw->x;
+ glxPriv->yorigin = glxPriv->pDraw->y;
+ glxPriv->width = glxPriv->pDraw->width;
+ glxPriv->height = glxPriv->pDraw->height;
+ }
+ }
+}
+
+/*
+** resize/move the drawable. Called during the actual resize callback
+** to update the drawable side of the buffers
+*/
+GLboolean
+__glXResizeDrawableBuffers(__GLXdrawablePrivate *glxPriv)
+{
+ __GLdrawablePrivate *glPriv = &glxPriv->glPriv;
+ GLint x, y;
+ GLuint w, h;
+#if defined(__GL_ALIGNED_BUFFERS)
+ GLint xAlignment, yAlignment;
+ GLint xOffset, yOffset;
+ GLint xStart, xEnd;
+ GLint yStart, yEnd;
+ GLuint xAlignedMask, yAlignedMask;
+#endif
+ GLboolean status = GL_TRUE;
+
+ __glXCacheDrawableSize(glxPriv);
+
+ w = glxPriv->width;
+ h = glxPriv->height;
+ x = glxPriv->xorigin;
+ y = glxPriv->yorigin;
+
+#if defined(__GL_ALIGNED_BUFFERS)
+ xAlignment = glPriv->xAlignment;
+ yAlignment = glPriv->yAlignment;
+
+ xOffset = x & (xAlignment-1);
+ yOffset = y & (yAlignment-1);
+
+ xAlignedMask = ~(xAlignment-1);
+ yAlignedMask = ~(yAlignment-1);
+
+ xStart = x; xEnd = x+w;
+ yStart = y; yEnd = y+h;
+
+ xStart &= xAlignedMask;
+ if (xEnd & ~xAlignedMask) {
+ xEnd = (xEnd&xAlignedMask) + xAlignment;
+ }
+ yStart &= yAlignedMask;
+ if (yEnd & ~yAlignedMask) {
+ yEnd = (yEnd&yAlignedMask) + yAlignment;
+ }
+
+ x = xStart; y = yStart;
+ w = xEnd-xStart; h = yEnd-yStart;
+#endif
+
+ if ((x != glPriv->xOrigin) ||
+ (y != glPriv->yOrigin) ||
+#if defined(__GL_ALIGNED_BUFFERS)
+ (xOffset != glPriv->xOffset) ||
+ (yOffset != glPriv->yOffset) ||
+#endif
+ (w != glPriv->width) ||
+ (h != glPriv->height) ||
+ (!w && !h)) {
+ /* set up the glPriv info */
+ glPriv->width = w;
+ glPriv->height = h;
+ glPriv->xOrigin = x;
+ glPriv->yOrigin = y;
+#if defined(__GL_ALIGNED_BUFFERS)
+ glPriv->xOffset = xOffset;
+ glPriv->yOffset = yOffset;
+#endif
+
+ /* notify the buffers */
+ status = __glXResizeBuffers(glPriv, x, y, w, h);
+ }
+
+ return status;
+}
+
+/************************************************************************/
+