602 lines
16 KiB
C
602 lines
16 KiB
C
/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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#ifdef HAVE_DMX_CONFIG_H
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#include <dmx-config.h>
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#endif
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#include "dmx.h"
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#include <GL/glx.h>
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#include <GL/glxproto.h>
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#include <X11/extensions/Xext.h>
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#include <X11/extensions/extutil.h>
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#include "dmx_glxvisuals.h"
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__GLXvisualConfig *GetGLXVisualConfigs(Display *dpy, int screen, int *nconfigs)
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{
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xGLXGetVisualConfigsReq *req;
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xGLXGetVisualConfigsReply reply;
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__GLXvisualConfig *config, *configs;
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GLint i, j, nvisuals, nprops;
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INT32 *props, *p;
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int majorOpcode, dummy;
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int num_good_visuals;
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if (!XQueryExtension(dpy, "GLX", &majorOpcode, &dummy, &dummy)) {
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return NULL;
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}
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/* Send the glXGetVisualConfigs request */
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LockDisplay(dpy);
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GetReq(GLXGetVisualConfigs,req);
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req->reqType = majorOpcode;
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req->glxCode = X_GLXGetVisualConfigs;
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req->screen = screen;
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if (!_XReply(dpy, (xReply*) &reply, 0, False)) {
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/* Something is busted. Punt. */
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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nvisuals = (int)reply.numVisuals;
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if (!nvisuals) {
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/* This screen does not support GL rendering */
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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/* Check number of properties per visual */
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nprops = (int)reply.numProps;
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if (nprops < __GLX_MIN_CONFIG_PROPS) {
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/* Huh? Not in protocol defined limits. Punt */
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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props = (INT32*) Xmalloc(nprops * __GLX_SIZE_CARD32);
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if (!props) {
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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/* Allocate memory for our config structure */
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config = (__GLXvisualConfig*)
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Xmalloc(nvisuals * sizeof(__GLXvisualConfig));
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if (!config) {
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free(props);
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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memset(config, 0, nvisuals * sizeof(__GLXvisualConfig));
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configs = config;
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num_good_visuals = 0;
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/* Convert config structure into our format */
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for (i=0; i<nvisuals; i++) {
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/* Read config structure */
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_XRead(dpy, (char *)props, (nprops * __GLX_SIZE_CARD32));
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/* fill in default values */
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config->visualRating = GLX_NONE_EXT;
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config->transparentPixel = GLX_NONE_EXT;
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/* Copy in the first set of properties */
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config->vid = props[0];
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config->class = props[1];
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config->rgba = (Bool) props[2];
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config->redSize = props[3];
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config->greenSize = props[4];
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config->blueSize = props[5];
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config->alphaSize = props[6];
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config->accumRedSize = props[7];
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config->accumGreenSize = props[8];
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config->accumBlueSize = props[9];
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config->accumAlphaSize = props[10];
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config->doubleBuffer = (Bool) props[11];
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config->stereo = (Bool) props[12];
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config->bufferSize = props[13];
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config->depthSize = props[14];
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config->stencilSize = props[15];
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config->auxBuffers = props[16];
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config->level = props[17];
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/* Process remaining properties */
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p = &props[18];
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for (j=__GLX_MIN_CONFIG_PROPS; j<nprops; j+=2) {
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int property = *p++;
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int value = *p++;
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switch (property) {
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case GLX_SAMPLES_SGIS:
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config->multiSampleSize = value;
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break;
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case GLX_SAMPLE_BUFFERS_SGIS:
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config->nMultiSampleBuffers = value;
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break;
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case GLX_TRANSPARENT_TYPE_EXT:
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config->transparentPixel = value;
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break;
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case GLX_TRANSPARENT_INDEX_VALUE_EXT:
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config->transparentIndex = value;
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break;
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case GLX_TRANSPARENT_RED_VALUE_EXT:
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config->transparentRed = value;
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break;
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case GLX_TRANSPARENT_GREEN_VALUE_EXT:
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config->transparentGreen = value;
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break;
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case GLX_TRANSPARENT_BLUE_VALUE_EXT:
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config->transparentBlue = value;
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break;
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case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
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config->transparentAlpha = value;
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break;
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case GLX_VISUAL_CAVEAT_EXT:
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config->visualRating = value;
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break;
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/* visualSelectGroup is an internal used property */
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case GLX_VISUAL_SELECT_GROUP_SGIX:
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config->visualSelectGroup = value;
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break;
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default :
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/* Ignore properties we don't recognize */
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break;
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}
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} /* for j */
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/*
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// filter out overlay visuals (dmx does not support overlays)
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*/
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if (config->level == 0) {
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config++;
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num_good_visuals++;
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}
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} /* for i */
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UnlockDisplay(dpy);
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nvisuals = num_good_visuals;
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config = configs;
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for (i=0; i<nvisuals; i++) {
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/* XXX hack to fill-in mask info (need a better way to do this) */
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{
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XVisualInfo *vis, template;
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int n;
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template.screen = screen;
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template.visualid = config->vid;
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vis = XGetVisualInfo(dpy, VisualScreenMask|VisualIDMask,
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&template, &n);
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if (vis != NULL) {
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config->redMask = vis->red_mask;
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config->greenMask = vis->green_mask;
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config->blueMask = vis->blue_mask;
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config->alphaMask = 0; /* XXX */
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free(vis);
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}
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}
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config++;
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} /* for i */
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XFree(props);
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SyncHandle();
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*nconfigs = nvisuals;
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return configs;
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}
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__GLXFBConfig *GetGLXFBConfigs(Display *dpy, int glxMajorOpcode, int *nconfigs)
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{
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xGLXGetFBConfigsReq *req;
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xGLXGetFBConfigsReply reply;
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__GLXFBConfig *config, *fbconfigs;
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GLint i, j, numFBConfigs, numAttribs;
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INT32 *attrs, *p;
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int screen = DefaultScreen( dpy );
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int numValidConfigs = 0;
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/* Send the glXGetFBConfigs request */
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LockDisplay(dpy);
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GetReq(GLXGetFBConfigs, req);
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req->reqType = glxMajorOpcode;
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req->glxCode = X_GLXGetFBConfigs;
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req->screen = screen;
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*nconfigs = 0;
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if (!_XReply(dpy, (xReply*) &reply, 0, False)) {
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/* Something is busted. Punt. */
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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numFBConfigs = (int)reply.numFBConfigs;
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if (!numFBConfigs) {
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/* This screen does not support GL rendering */
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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numAttribs = (int)reply.numAttribs;
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if (!numAttribs) {
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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attrs = (INT32*) Xmalloc(2*numAttribs * __GLX_SIZE_CARD32);
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if (!attrs) {
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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/* Allocate memory for our config structure */
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config = (__GLXFBConfig*)
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Xmalloc(numFBConfigs * sizeof(__GLXFBConfig));
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if (!config) {
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free(attrs);
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UnlockDisplay(dpy);
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SyncHandle();
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return NULL;
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}
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memset(config, 0, numFBConfigs * sizeof(__GLXFBConfig));
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fbconfigs = config;
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/* Convert attribute list into our format */
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for (i=0; i<numFBConfigs; i++) {
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/* Fill in default properties */
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config->transparentType = GLX_NONE_EXT;
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config->visualCaveat = GLX_NONE_EXT;
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config->minRed = 0.;
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config->maxRed = 1.;
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config->minGreen = 0.;
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config->maxGreen = 1.;
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config->minBlue = 0.;
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config->maxBlue = 1.;
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config->minAlpha = 0.;
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config->maxAlpha = 1.;
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/* Read attribute list */
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_XRead(dpy, (char *)attrs, (2*numAttribs * __GLX_SIZE_CARD32));
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p = attrs;
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for (j=0; j<numAttribs; j++) {
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int attribute = *p++;
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int value = *p++;
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switch (attribute) {
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/* core attributes */
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case GLX_FBCONFIG_ID:
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config->id = value;
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break;
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case GLX_BUFFER_SIZE:
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config->indexBits = value;
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break;
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case GLX_LEVEL:
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config->level = value;
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break;
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case GLX_DOUBLEBUFFER:
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config->doubleBufferMode = value;
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break;
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case GLX_STEREO:
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config->stereoMode = value;
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break;
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case GLX_AUX_BUFFERS:
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config->maxAuxBuffers = value;
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break;
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case GLX_RED_SIZE:
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config->redBits = value;
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break;
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case GLX_GREEN_SIZE:
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config->greenBits = value;
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break;
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case GLX_BLUE_SIZE:
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config->blueBits = value;
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break;
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case GLX_ALPHA_SIZE:
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config->alphaBits = value;
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break;
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case GLX_DEPTH_SIZE:
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config->depthBits = value;
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break;
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case GLX_STENCIL_SIZE:
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config->stencilBits = value;
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break;
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case GLX_ACCUM_RED_SIZE:
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config->accumRedBits = value;
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break;
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case GLX_ACCUM_GREEN_SIZE:
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config->accumGreenBits = value;
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break;
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case GLX_ACCUM_BLUE_SIZE:
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config->accumBlueBits = value;
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break;
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case GLX_ACCUM_ALPHA_SIZE:
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config->accumAlphaBits = value;
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break;
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case GLX_RENDER_TYPE:
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config->renderType = value;
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break;
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case GLX_DRAWABLE_TYPE:
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config->drawableType = value;
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break;
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case GLX_X_VISUAL_TYPE:
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config->visualType = value;
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break;
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case GLX_CONFIG_CAVEAT:
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config->visualCaveat = value;
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break;
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case GLX_TRANSPARENT_TYPE:
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config->transparentType = value;
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break;
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case GLX_TRANSPARENT_INDEX_VALUE:
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config->transparentIndex = value;
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break;
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case GLX_TRANSPARENT_RED_VALUE:
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config->transparentRed = value;
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break;
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case GLX_TRANSPARENT_GREEN_VALUE:
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config->transparentGreen = value;
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break;
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case GLX_TRANSPARENT_BLUE_VALUE:
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config->transparentBlue = value;
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break;
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case GLX_TRANSPARENT_ALPHA_VALUE:
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config->transparentAlpha = value;
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break;
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case GLX_MAX_PBUFFER_WIDTH:
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config->maxPbufferWidth = value;
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break;
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case GLX_MAX_PBUFFER_HEIGHT:
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config->maxPbufferHeight = value;
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break;
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case GLX_MAX_PBUFFER_PIXELS:
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config->maxPbufferPixels = value;
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break;
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case GLX_VISUAL_ID:
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config->associatedVisualId = value;
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break;
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/* visualSelectGroup is an internal used property */
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case GLX_VISUAL_SELECT_GROUP_SGIX:
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config->visualSelectGroup = value;
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break;
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/* SGIS_multisample attributes */
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case GLX_SAMPLES_SGIS:
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config->multiSampleSize = value;
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break;
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case GLX_SAMPLE_BUFFERS_SGIS:
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config->nMultiSampleBuffers = value;
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break;
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/* SGIX_pbuffer specific attributes */
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case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX:
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config->optimalPbufferWidth = value;
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break;
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case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX:
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config->optimalPbufferHeight = value;
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break;
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default:
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/* Ignore attributes we don't recognize */
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break;
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}
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} /* for j */
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/* Fill in derived values */
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config->screen = screen;
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config->rgbMode = config->renderType & GLX_RGBA_BIT;
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config->colorIndexMode = !config->rgbMode;
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config->haveAccumBuffer =
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config->accumRedBits > 0 ||
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config->accumGreenBits > 0 ||
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config->accumBlueBits > 0;
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/* Can't have alpha without color */
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config->haveDepthBuffer = config->depthBits > 0;
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config->haveStencilBuffer = config->stencilBits > 0;
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/* overlay visuals are not valid for now */
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if (!config->level) {
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config++;
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numValidConfigs++;
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}
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} /* for i */
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UnlockDisplay(dpy);
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config = fbconfigs;
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for (i=0; i<numValidConfigs; i++) {
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/* XXX hack to fill-in mask info (need a better way to do this) */
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if (config->associatedVisualId != 0) {
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XVisualInfo *vis, template;
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int n;
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template.screen = screen;
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template.visualid = config->associatedVisualId;
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vis = XGetVisualInfo(dpy, VisualScreenMask|VisualIDMask,
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&template, &n);
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if (vis != NULL) {
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config->redMask = (GLuint)vis->red_mask;
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config->greenMask = (GLuint)vis->green_mask;
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config->blueMask = (GLuint)vis->blue_mask;
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config->alphaMask = 0; /* XXX */
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free(vis);
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}
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}
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config++;
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} /* for i */
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XFree(attrs);
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SyncHandle();
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*nconfigs = numValidConfigs;
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return fbconfigs;
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}
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__GLXvisualConfig *
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GetGLXVisualConfigsFromFBConfigs(__GLXFBConfig *fbconfigs, int nfbconfigs,
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XVisualInfo *visuals, int nvisuals,
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__GLXvisualConfig *glxConfigs, int nGlxConfigs,
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int *nconfigs)
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{
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__GLXvisualConfig *configs = NULL;
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int i;
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if (!fbconfigs || !nfbconfigs || !nconfigs) return NULL;
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*nconfigs = 0;
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/* Allocate memory for our config structure */
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configs = (__GLXvisualConfig*)
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Xmalloc(nfbconfigs * sizeof(__GLXvisualConfig));
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if (!configs) {
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return NULL;
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}
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memset(configs, 0, nfbconfigs * sizeof(__GLXvisualConfig));
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for (i=0; i<nfbconfigs; i++) {
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__GLXFBConfig *fbcfg = &fbconfigs[i];
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if (fbcfg->associatedVisualId > 0) {
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__GLXvisualConfig *cfg = configs + (*nconfigs);
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int j;
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XVisualInfo *vinfo = NULL;
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for (j=0; j<nvisuals; j++) {
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if (visuals[j].visualid == fbcfg->associatedVisualId) {
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vinfo = &visuals[j];
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break;
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}
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}
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if (!vinfo) continue;
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/* skip 16 bit colormap visuals */
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if (vinfo->depth == 16 &&
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vinfo->class != TrueColor &&
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vinfo->class != DirectColor ) {
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continue;
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}
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(*nconfigs)++;
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/*
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* if the same visualid exists in the glx configs,
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* copy the glx attributes from the glx config
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*/
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for (j=0; j<nGlxConfigs; j++) {
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if (glxConfigs[j].vid == vinfo->visualid)
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break;
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}
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if (j < nGlxConfigs) {
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memcpy(cfg, &glxConfigs[j], sizeof(__GLXvisualConfig) );
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continue;
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}
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/*
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* make glx attributes from the FB config attributes
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*/
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cfg->vid = fbcfg->associatedVisualId;
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cfg->class = vinfo->class;
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cfg->rgba = !(fbcfg->renderType & GLX_COLOR_INDEX_BIT_SGIX);
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cfg->redSize = fbcfg->redBits;
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cfg->greenSize = fbcfg->greenBits;
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cfg->blueSize = fbcfg->blueBits;
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cfg->alphaSize = fbcfg->alphaBits;
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cfg->redMask = fbcfg->redMask;
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cfg->greenMask = fbcfg->greenMask;
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cfg->blueMask = fbcfg->blueMask;
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cfg->alphaMask = fbcfg->alphaMask;
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cfg->accumRedSize = fbcfg->accumRedBits;
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|
cfg->accumGreenSize = fbcfg->accumGreenBits;
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|
cfg->accumBlueSize = fbcfg->accumBlueBits;
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cfg->accumAlphaSize = fbcfg->accumAlphaBits;
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cfg->doubleBuffer = fbcfg->doubleBufferMode;
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cfg->stereo = fbcfg->stereoMode;
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if (vinfo->class == TrueColor || vinfo->class == DirectColor) {
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cfg->bufferSize = (fbcfg->rgbMode ? (fbcfg->redBits +
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|
fbcfg->greenBits +
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|
fbcfg->blueBits +
|
|
fbcfg->alphaBits)
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: fbcfg->indexBits );
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|
}
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else {
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cfg->bufferSize = vinfo->depth;
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|
}
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|
cfg->depthSize = fbcfg->depthBits;
|
|
cfg->stencilSize = fbcfg->stencilBits;
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|
cfg->auxBuffers = fbcfg->maxAuxBuffers;
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|
cfg->level = fbcfg->level;
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cfg->visualRating = fbcfg->visualCaveat;
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|
cfg->transparentPixel = fbcfg->transparentType;
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|
cfg->transparentRed = fbcfg->transparentRed;
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|
cfg->transparentGreen = fbcfg->transparentGreen;
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cfg->transparentBlue = fbcfg->transparentBlue;
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|
cfg->transparentAlpha = fbcfg->transparentAlpha;
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|
cfg->transparentIndex = fbcfg->transparentIndex;
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cfg->multiSampleSize = fbcfg->multiSampleSize;
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|
cfg->nMultiSampleBuffers = fbcfg->nMultiSampleBuffers;
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|
cfg->visualSelectGroup = fbcfg->visualSelectGroup;
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|
}
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|
}
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|
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|
return configs;
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|
}
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|