2768 lines
69 KiB
C
2768 lines
69 KiB
C
/*
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* Mesa 3-D graphics library
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*
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* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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* Copyright (C) 2009 VMware, 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 and this permission notice shall be included
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* 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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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* "Fake" GLX API implemented in terms of the XMesa*() functions.
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*/
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#define GLX_GLXEXT_PROTOTYPES
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#include "GL/glx.h"
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#include <stdio.h>
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#include <string.h>
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#include <X11/Xmd.h>
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#include <GL/glxproto.h>
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#include "xm_api.h"
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#include "main/errors.h"
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#include "main/config.h"
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#include "util/u_math.h"
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#include "util/u_memory.h"
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/* An "Atrribs/Attribs" typo was fixed in glxproto.h in Nov 2014.
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* This is in case we don't have the updated header.
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*/
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#if !defined(X_GLXCreateContextAttribsARB) && \
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defined(X_GLXCreateContextAtrribsARB)
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#define X_GLXCreateContextAttribsARB X_GLXCreateContextAtrribsARB
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#endif
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/* This indicates the client-side GLX API and GLX encoder version. */
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#define CLIENT_MAJOR_VERSION 1
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#define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
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/* This indicates the server-side GLX decoder version.
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* GLX 1.4 indicates OpenGL 1.3 support
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*/
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#define SERVER_MAJOR_VERSION 1
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#define SERVER_MINOR_VERSION 4
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/* Who implemented this GLX? */
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#define VENDOR "Brian Paul"
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#define EXTENSIONS \
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"GLX_MESA_copy_sub_buffer " \
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"GLX_MESA_pixmap_colormap " \
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"GLX_MESA_release_buffers " \
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"GLX_ARB_create_context " \
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"GLX_ARB_create_context_profile " \
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"GLX_ARB_get_proc_address " \
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"GLX_EXT_create_context_es_profile " \
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"GLX_EXT_create_context_es2_profile " \
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"GLX_EXT_texture_from_pixmap " \
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"GLX_EXT_visual_info " \
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"GLX_EXT_visual_rating " \
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/*"GLX_SGI_video_sync "*/ \
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"GLX_SGIX_fbconfig " \
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"GLX_SGIX_pbuffer "
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#define DEFAULT_DIRECT GL_TRUE
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/** XXX this could be based on gallium's max texture size */
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#define PBUFFER_MAX_SIZE 16384
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/**
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* The GLXContext typedef is defined as a pointer to this structure.
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*/
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struct __GLXcontextRec
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{
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Display *currentDpy;
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GLboolean isDirect;
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GLXDrawable currentDrawable;
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GLXDrawable currentReadable;
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XID xid;
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XMesaContext xmesaContext;
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};
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thread_local GLXContext ContextTSD;
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/** Set current context for calling thread */
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static void
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SetCurrentContext(GLXContext c)
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{
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ContextTSD = c;
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}
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/** Get current context for calling thread */
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static GLXContext
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GetCurrentContext(void)
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{
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return ContextTSD;
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}
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/**********************************************************************/
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/*** GLX Visual Code ***/
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/**********************************************************************/
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#define DONT_CARE -1
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static XMesaVisual *VisualTable = NULL;
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static int NumVisuals = 0;
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/* Macro to handle c_class vs class field name in XVisualInfo struct */
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#if defined(__cplusplus) || defined(c_plusplus)
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#define CLASS c_class
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#else
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#define CLASS class
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#endif
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/*
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* Test if the given XVisualInfo is usable for Mesa rendering.
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*/
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static GLboolean
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is_usable_visual( XVisualInfo *vinfo )
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{
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switch (vinfo->CLASS) {
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case StaticGray:
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case GrayScale:
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/* Any StaticGray/GrayScale visual works in RGB or CI mode */
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return GL_TRUE;
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case StaticColor:
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case PseudoColor:
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/* Any StaticColor/PseudoColor visual of at least 4 bits */
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if (vinfo->depth>=4) {
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return GL_TRUE;
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}
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else {
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return GL_FALSE;
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}
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case TrueColor:
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case DirectColor:
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/* Any depth of TrueColor or DirectColor works in RGB mode */
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return GL_TRUE;
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default:
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/* This should never happen */
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return GL_FALSE;
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}
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}
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/*
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* Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
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* configuration in our list of GLX visuals.
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*/
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static XMesaVisual
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save_glx_visual( Display *dpy, XVisualInfo *vinfo,
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GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag,
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GLboolean stereoFlag,
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GLint depth_size, GLint stencil_size,
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GLint accumRedSize, GLint accumGreenSize,
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GLint accumBlueSize, GLint accumAlphaSize,
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GLint level, GLint numAuxBuffers, GLuint num_samples )
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{
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GLboolean ximageFlag = GL_TRUE;
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XMesaVisual xmvis;
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GLint i;
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GLboolean comparePointers;
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if (!rgbFlag)
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return NULL;
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if (dbFlag) {
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/* Check if the MESA_BACK_BUFFER env var is set */
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char *backbuffer = getenv("MESA_BACK_BUFFER");
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if (backbuffer) {
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if (backbuffer[0]=='p' || backbuffer[0]=='P') {
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ximageFlag = GL_FALSE;
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}
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else if (backbuffer[0]=='x' || backbuffer[0]=='X') {
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ximageFlag = GL_TRUE;
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}
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else {
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_mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
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}
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}
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}
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if (stereoFlag) {
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/* stereo not supported */
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return NULL;
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}
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if (stencil_size > 0 && depth_size > 0)
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depth_size = 24;
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/* Comparing IDs uses less memory but sometimes fails. */
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/* XXX revisit this after 3.0 is finished. */
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if (getenv("MESA_GLX_VISUAL_HACK"))
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comparePointers = GL_TRUE;
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else
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comparePointers = GL_FALSE;
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/* Force the visual to have an alpha channel */
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if (rgbFlag && getenv("MESA_GLX_FORCE_ALPHA"))
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alphaFlag = GL_TRUE;
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/* First check if a matching visual is already in the list */
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for (i=0; i<NumVisuals; i++) {
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XMesaVisual v = VisualTable[i];
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if (v->display == dpy
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&& v->mesa_visual.samples == num_samples
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&& v->ximage_flag == ximageFlag
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&& v->mesa_visual.doubleBufferMode == dbFlag
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&& v->mesa_visual.stereoMode == stereoFlag
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&& (v->mesa_visual.alphaBits > 0) == alphaFlag
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&& (v->mesa_visual.depthBits >= depth_size || depth_size == 0)
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&& (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0)
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&& (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0)
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&& (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0)
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&& (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0)
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&& (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) {
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/* now either compare XVisualInfo pointers or visual IDs */
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if ((!comparePointers && v->visinfo->visualid == vinfo->visualid)
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|| (comparePointers && v->vishandle == vinfo)) {
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return v;
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}
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}
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}
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/* Create a new visual and add it to the list. */
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xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag,
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stereoFlag, ximageFlag,
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depth_size, stencil_size,
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accumRedSize, accumBlueSize,
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accumBlueSize, accumAlphaSize, num_samples, level,
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GLX_NONE_EXT );
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if (xmvis) {
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/* Save a copy of the pointer now so we can find this visual again
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* if we need to search for it in find_glx_visual().
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*/
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xmvis->vishandle = vinfo;
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/* Allocate more space for additional visual */
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VisualTable = realloc(VisualTable, sizeof(XMesaVisual) * (NumVisuals + 1));
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/* add xmvis to the list */
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VisualTable[NumVisuals] = xmvis;
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NumVisuals++;
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}
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return xmvis;
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}
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/**
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* Return the default number of bits for the Z buffer.
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* If defined, use the MESA_GLX_DEPTH_BITS env var value.
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* Otherwise, use 24.
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* XXX probably do the same thing for stencil, accum, etc.
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*/
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static GLint
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default_depth_bits(void)
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{
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int zBits;
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const char *zEnv = getenv("MESA_GLX_DEPTH_BITS");
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if (zEnv)
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zBits = atoi(zEnv);
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else
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zBits = 24;
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return zBits;
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}
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static GLint
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default_alpha_bits(void)
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{
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int aBits;
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const char *aEnv = getenv("MESA_GLX_ALPHA_BITS");
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if (aEnv)
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aBits = atoi(aEnv);
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else
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aBits = 0;
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return aBits;
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}
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static GLint
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default_accum_bits(void)
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{
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return 16;
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}
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/*
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* Create a GLX visual from a regular XVisualInfo.
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* This is called when Fake GLX is given an XVisualInfo which wasn't
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* returned by glXChooseVisual. Since this is the first time we're
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* considering this visual we'll take a guess at reasonable values
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* for depth buffer size, stencil size, accum size, etc.
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* This is the best we can do with a client-side emulation of GLX.
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*/
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static XMesaVisual
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create_glx_visual( Display *dpy, XVisualInfo *visinfo )
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{
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GLint zBits = default_depth_bits();
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GLint accBits = default_accum_bits();
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GLboolean alphaFlag = default_alpha_bits() > 0;
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if (is_usable_visual( visinfo )) {
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/* Configure this visual as RGB, double-buffered, depth-buffered. */
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/* This is surely wrong for some people's needs but what else */
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/* can be done? They should use glXChooseVisual(). */
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return save_glx_visual( dpy, visinfo,
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GL_TRUE, /* rgb */
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alphaFlag, /* alpha */
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GL_TRUE, /* double */
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GL_FALSE, /* stereo */
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zBits,
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8, /* stencil bits */
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accBits, /* r */
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accBits, /* g */
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accBits, /* b */
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accBits, /* a */
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0, /* level */
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0, /* numAux */
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0 /* numSamples */
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);
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}
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else {
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_mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n");
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return NULL;
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}
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}
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/*
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* Find the GLX visual associated with an XVisualInfo.
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*/
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static XMesaVisual
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find_glx_visual( Display *dpy, XVisualInfo *vinfo )
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{
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int i;
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/* try to match visual id */
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for (i=0;i<NumVisuals;i++) {
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if (VisualTable[i]->display==dpy
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&& VisualTable[i]->visinfo->visualid == vinfo->visualid) {
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return VisualTable[i];
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}
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}
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/* if that fails, try to match pointers */
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for (i=0;i<NumVisuals;i++) {
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if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) {
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return VisualTable[i];
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}
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}
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return NULL;
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}
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/**
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* Try to get an X visual which matches the given arguments.
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*/
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static XVisualInfo *
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get_visual( Display *dpy, int scr, unsigned int depth, int xclass )
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{
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XVisualInfo temp, *vis;
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long mask;
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int n;
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unsigned int default_depth;
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int default_class;
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mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
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temp.screen = scr;
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temp.depth = depth;
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temp.CLASS = xclass;
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default_depth = DefaultDepth(dpy,scr);
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default_class = DefaultVisual(dpy,scr)->CLASS;
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if (depth==default_depth && xclass==default_class) {
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/* try to get root window's visual */
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temp.visualid = DefaultVisual(dpy,scr)->visualid;
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mask |= VisualIDMask;
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}
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vis = XGetVisualInfo( dpy, mask, &temp, &n );
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/* In case bits/pixel > 24, make sure color channels are still <=8 bits.
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* An SGI Infinite Reality system, for example, can have 30bpp pixels:
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* 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
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*/
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if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) {
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if (util_bitcount((GLuint) vis->red_mask ) <= 8 &&
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util_bitcount((GLuint) vis->green_mask) <= 8 &&
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util_bitcount((GLuint) vis->blue_mask ) <= 8) {
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return vis;
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}
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else {
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free((void *) vis);
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return NULL;
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}
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}
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return vis;
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}
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/*
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* Retrieve the value of the given environment variable and find
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* the X visual which matches it.
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* Input: dpy - the display
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* screen - the screen number
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* varname - the name of the environment variable
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* Return: an XVisualInfo pointer to NULL if error.
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*/
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static XVisualInfo *
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get_env_visual(Display *dpy, int scr, const char *varname)
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{
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char value[100], type[100];
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int depth, xclass = -1;
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XVisualInfo *vis;
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if (!getenv( varname )) {
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return NULL;
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}
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strncpy( value, getenv(varname), 100 );
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value[99] = 0;
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sscanf( value, "%s %d", type, &depth );
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if (strcmp(type,"TrueColor")==0) xclass = TrueColor;
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else if (strcmp(type,"DirectColor")==0) xclass = DirectColor;
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else if (strcmp(type,"PseudoColor")==0) xclass = PseudoColor;
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else if (strcmp(type,"StaticColor")==0) xclass = StaticColor;
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else if (strcmp(type,"GrayScale")==0) xclass = GrayScale;
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else if (strcmp(type,"StaticGray")==0) xclass = StaticGray;
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if (xclass>-1 && depth>0) {
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vis = get_visual( dpy, scr, depth, xclass );
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if (vis) {
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return vis;
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}
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}
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_mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.",
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type, depth);
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return NULL;
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}
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/*
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* Select an X visual which satisfies the RGBA flag and minimum depth.
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* Input: dpy,
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* screen - X display and screen number
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* min_depth - minimum visual depth
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* preferred_class - preferred GLX visual class or DONT_CARE
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* Return: pointer to an XVisualInfo or NULL.
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*/
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static XVisualInfo *
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choose_x_visual( Display *dpy, int screen, int min_depth,
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int preferred_class )
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{
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XVisualInfo *vis;
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int xclass, visclass = 0;
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int depth;
|
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/* First see if the MESA_RGB_VISUAL env var is defined */
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vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" );
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if (vis) {
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return vis;
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}
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/* Otherwise, search for a suitable visual */
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if (preferred_class==DONT_CARE) {
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for (xclass=0;xclass<6;xclass++) {
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switch (xclass) {
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case 0: visclass = TrueColor; break;
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case 1: visclass = DirectColor; break;
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case 2: visclass = PseudoColor; break;
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case 3: visclass = StaticColor; break;
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case 4: visclass = GrayScale; break;
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case 5: visclass = StaticGray; break;
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}
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if (min_depth==0) {
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/* start with shallowest */
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for (depth=0;depth<=32;depth++) {
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if (visclass==TrueColor && depth==8) {
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/* Special case: try to get 8-bit PseudoColor before */
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/* 8-bit TrueColor */
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vis = get_visual( dpy, screen, 8, PseudoColor );
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if (vis) {
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return vis;
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}
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}
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vis = get_visual( dpy, screen, depth, visclass );
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if (vis) {
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return vis;
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}
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}
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}
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else {
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/* start with deepest */
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for (depth=32;depth>=min_depth;depth--) {
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if (visclass==TrueColor && depth==8) {
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/* Special case: try to get 8-bit PseudoColor before */
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/* 8-bit TrueColor */
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vis = get_visual( dpy, screen, 8, PseudoColor );
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if (vis) {
|
|
return vis;
|
|
}
|
|
}
|
|
vis = get_visual( dpy, screen, depth, visclass );
|
|
if (vis) {
|
|
return vis;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* search for a specific visual class */
|
|
switch (preferred_class) {
|
|
case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
|
|
case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
|
|
case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
|
|
case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
|
|
case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
|
|
case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
|
|
default: return NULL;
|
|
}
|
|
if (min_depth==0) {
|
|
/* start with shallowest */
|
|
for (depth=0;depth<=32;depth++) {
|
|
vis = get_visual( dpy, screen, depth, visclass );
|
|
if (vis) {
|
|
return vis;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* start with deepest */
|
|
for (depth=32;depth>=min_depth;depth--) {
|
|
vis = get_visual( dpy, screen, depth, visclass );
|
|
if (vis) {
|
|
return vis;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* didn't find a visual */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
|
|
|
|
/**********************************************************************/
|
|
/*** Display-related functions ***/
|
|
/**********************************************************************/
|
|
|
|
|
|
/**
|
|
* Free all XMesaVisuals which are associated with the given display.
|
|
*/
|
|
static void
|
|
destroy_visuals_on_display(Display *dpy)
|
|
{
|
|
int i;
|
|
for (i = 0; i < NumVisuals; i++) {
|
|
if (VisualTable[i]->display == dpy) {
|
|
/* remove this visual */
|
|
int j;
|
|
free(VisualTable[i]);
|
|
for (j = i; j < NumVisuals - 1; j++)
|
|
VisualTable[j] = VisualTable[j + 1];
|
|
NumVisuals--;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Called from XCloseDisplay() to let us free our display-related data.
|
|
*/
|
|
static int
|
|
close_display_callback(Display *dpy, XExtCodes *codes)
|
|
{
|
|
xmesa_destroy_buffers_on_display(dpy);
|
|
destroy_visuals_on_display(dpy);
|
|
xmesa_close_display(dpy);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Look for the named extension on given display and return a pointer
|
|
* to the _XExtension data, or NULL if extension not found.
|
|
*/
|
|
static _XExtension *
|
|
lookup_extension(Display *dpy, const char *extName)
|
|
{
|
|
_XExtension *ext;
|
|
for (ext = dpy->ext_procs; ext; ext = ext->next) {
|
|
if (ext->name && strcmp(ext->name, extName) == 0) {
|
|
return ext;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Whenever we're given a new Display pointer, call this function to
|
|
* register our close_display_callback function.
|
|
*/
|
|
static void
|
|
register_with_display(Display *dpy)
|
|
{
|
|
const char *extName = "MesaGLX";
|
|
_XExtension *ext;
|
|
|
|
ext = lookup_extension(dpy, extName);
|
|
if (!ext) {
|
|
XExtCodes *c = XAddExtension(dpy);
|
|
ext = dpy->ext_procs; /* new extension is at head of list */
|
|
assert(c->extension == ext->codes.extension);
|
|
(void) c;
|
|
ext->name = strdup(extName);
|
|
ext->close_display = close_display_callback;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Fake an error.
|
|
*/
|
|
static int
|
|
generate_error(Display *dpy,
|
|
unsigned char error_code,
|
|
XID resourceid,
|
|
unsigned char minor_code,
|
|
Bool core)
|
|
{
|
|
XErrorHandler handler;
|
|
int major_opcode;
|
|
int first_event;
|
|
int first_error;
|
|
XEvent event;
|
|
|
|
handler = XSetErrorHandler(NULL);
|
|
XSetErrorHandler(handler);
|
|
if (!handler) {
|
|
return 0;
|
|
}
|
|
|
|
if (!XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_opcode, &first_event, &first_error)) {
|
|
major_opcode = 0;
|
|
first_event = 0;
|
|
first_error = 0;
|
|
}
|
|
|
|
if (!core) {
|
|
error_code += first_error;
|
|
}
|
|
|
|
memset(&event, 0, sizeof event);
|
|
|
|
event.xerror.type = X_Error;
|
|
event.xerror.display = dpy;
|
|
event.xerror.resourceid = resourceid;
|
|
event.xerror.serial = NextRequest(dpy) - 1;
|
|
event.xerror.error_code = error_code;
|
|
event.xerror.request_code = major_opcode;
|
|
event.xerror.minor_code = minor_code;
|
|
|
|
return handler(dpy, &event.xerror);
|
|
}
|
|
|
|
|
|
/**********************************************************************/
|
|
/*** Begin Fake GLX API Functions ***/
|
|
/**********************************************************************/
|
|
|
|
|
|
/**
|
|
* Helper used by glXChooseVisual and glXChooseFBConfig.
|
|
* The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
|
|
* the later.
|
|
* In either case, the attribute list is terminated with the value 'None'.
|
|
*/
|
|
static XMesaVisual
|
|
choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
|
|
{
|
|
const GLboolean rgbModeDefault = fbConfig;
|
|
const int *parselist;
|
|
XVisualInfo *vis;
|
|
int min_red=0, min_green=0, min_blue=0;
|
|
GLboolean rgb_flag = rgbModeDefault;
|
|
GLboolean alpha_flag = GL_FALSE;
|
|
GLboolean double_flag = GL_FALSE;
|
|
GLboolean stereo_flag = GL_FALSE;
|
|
GLint depth_size = 0;
|
|
GLint stencil_size = 0;
|
|
GLint accumRedSize = 0;
|
|
GLint accumGreenSize = 0;
|
|
GLint accumBlueSize = 0;
|
|
GLint accumAlphaSize = 0;
|
|
int level = 0;
|
|
int visual_type = DONT_CARE;
|
|
GLint caveat = DONT_CARE;
|
|
XMesaVisual xmvis = NULL;
|
|
int desiredVisualID = -1;
|
|
int numAux = 0;
|
|
GLint num_samples = 0;
|
|
|
|
if (xmesa_init( dpy ) != 0) {
|
|
_mesa_warning(NULL, "Failed to initialize display");
|
|
return NULL;
|
|
}
|
|
|
|
parselist = list;
|
|
|
|
while (*parselist) {
|
|
|
|
if (fbConfig &&
|
|
parselist[1] == GLX_DONT_CARE &&
|
|
parselist[0] != GLX_LEVEL) {
|
|
/* For glXChooseFBConfig(), skip attributes whose value is
|
|
* GLX_DONT_CARE, unless it's GLX_LEVEL (which can legitimately be
|
|
* a negative value).
|
|
*
|
|
* From page 17 (23 of the pdf) of the GLX 1.4 spec:
|
|
* GLX DONT CARE may be specified for all attributes except GLX LEVEL.
|
|
*/
|
|
parselist += 2;
|
|
continue;
|
|
}
|
|
|
|
switch (*parselist) {
|
|
case GLX_USE_GL:
|
|
if (fbConfig) {
|
|
/* invalid token */
|
|
return NULL;
|
|
}
|
|
else {
|
|
/* skip */
|
|
parselist++;
|
|
}
|
|
break;
|
|
case GLX_BUFFER_SIZE:
|
|
parselist++;
|
|
parselist++;
|
|
break;
|
|
case GLX_LEVEL:
|
|
parselist++;
|
|
level = *parselist++;
|
|
break;
|
|
case GLX_RGBA:
|
|
if (fbConfig) {
|
|
/* invalid token */
|
|
return NULL;
|
|
}
|
|
else {
|
|
rgb_flag = GL_TRUE;
|
|
parselist++;
|
|
}
|
|
break;
|
|
case GLX_DOUBLEBUFFER:
|
|
parselist++;
|
|
if (fbConfig) {
|
|
double_flag = *parselist++;
|
|
}
|
|
else {
|
|
double_flag = GL_TRUE;
|
|
}
|
|
break;
|
|
case GLX_STEREO:
|
|
parselist++;
|
|
if (fbConfig) {
|
|
stereo_flag = *parselist++;
|
|
}
|
|
else {
|
|
stereo_flag = GL_TRUE;
|
|
}
|
|
break;
|
|
case GLX_AUX_BUFFERS:
|
|
parselist++;
|
|
numAux = *parselist++;
|
|
if (numAux > MAX_AUX_BUFFERS)
|
|
return NULL;
|
|
break;
|
|
case GLX_RED_SIZE:
|
|
parselist++;
|
|
min_red = *parselist++;
|
|
break;
|
|
case GLX_GREEN_SIZE:
|
|
parselist++;
|
|
min_green = *parselist++;
|
|
break;
|
|
case GLX_BLUE_SIZE:
|
|
parselist++;
|
|
min_blue = *parselist++;
|
|
break;
|
|
case GLX_ALPHA_SIZE:
|
|
parselist++;
|
|
{
|
|
GLint size = *parselist++;
|
|
alpha_flag = size ? GL_TRUE : GL_FALSE;
|
|
}
|
|
break;
|
|
case GLX_DEPTH_SIZE:
|
|
parselist++;
|
|
depth_size = *parselist++;
|
|
break;
|
|
case GLX_STENCIL_SIZE:
|
|
parselist++;
|
|
stencil_size = *parselist++;
|
|
break;
|
|
case GLX_ACCUM_RED_SIZE:
|
|
parselist++;
|
|
{
|
|
GLint size = *parselist++;
|
|
accumRedSize = MAX2( accumRedSize, size );
|
|
}
|
|
break;
|
|
case GLX_ACCUM_GREEN_SIZE:
|
|
parselist++;
|
|
{
|
|
GLint size = *parselist++;
|
|
accumGreenSize = MAX2( accumGreenSize, size );
|
|
}
|
|
break;
|
|
case GLX_ACCUM_BLUE_SIZE:
|
|
parselist++;
|
|
{
|
|
GLint size = *parselist++;
|
|
accumBlueSize = MAX2( accumBlueSize, size );
|
|
}
|
|
break;
|
|
case GLX_ACCUM_ALPHA_SIZE:
|
|
parselist++;
|
|
{
|
|
GLint size = *parselist++;
|
|
accumAlphaSize = MAX2( accumAlphaSize, size );
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* GLX_EXT_visual_info extension
|
|
*/
|
|
case GLX_X_VISUAL_TYPE_EXT:
|
|
parselist++;
|
|
visual_type = *parselist++;
|
|
break;
|
|
case GLX_TRANSPARENT_TYPE_EXT:
|
|
parselist++;
|
|
parselist++;
|
|
break;
|
|
case GLX_TRANSPARENT_INDEX_VALUE_EXT:
|
|
parselist++;
|
|
parselist++;
|
|
break;
|
|
case GLX_TRANSPARENT_RED_VALUE_EXT:
|
|
case GLX_TRANSPARENT_GREEN_VALUE_EXT:
|
|
case GLX_TRANSPARENT_BLUE_VALUE_EXT:
|
|
case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
|
|
/* ignore */
|
|
parselist++;
|
|
parselist++;
|
|
break;
|
|
|
|
/*
|
|
* GLX_EXT_visual_info extension
|
|
*/
|
|
case GLX_VISUAL_CAVEAT_EXT:
|
|
parselist++;
|
|
caveat = *parselist++; /* ignored for now */
|
|
break;
|
|
|
|
/*
|
|
* GLX_ARB_multisample
|
|
*/
|
|
case GLX_SAMPLE_BUFFERS_ARB:
|
|
/* ignore */
|
|
parselist++;
|
|
parselist++;
|
|
break;
|
|
case GLX_SAMPLES_ARB:
|
|
parselist++;
|
|
num_samples = *parselist++;
|
|
break;
|
|
|
|
/*
|
|
* FBConfig attribs.
|
|
*/
|
|
case GLX_RENDER_TYPE:
|
|
if (!fbConfig)
|
|
return NULL;
|
|
parselist++;
|
|
if (*parselist & GLX_RGBA_BIT) {
|
|
rgb_flag = GL_TRUE;
|
|
}
|
|
else if (*parselist & GLX_COLOR_INDEX_BIT) {
|
|
rgb_flag = GL_FALSE;
|
|
}
|
|
else if (*parselist == 0) {
|
|
rgb_flag = GL_TRUE;
|
|
}
|
|
parselist++;
|
|
break;
|
|
case GLX_DRAWABLE_TYPE:
|
|
if (!fbConfig)
|
|
return NULL;
|
|
parselist++;
|
|
if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) {
|
|
return NULL; /* bad bit */
|
|
}
|
|
parselist++;
|
|
break;
|
|
case GLX_FBCONFIG_ID:
|
|
case GLX_VISUAL_ID:
|
|
if (!fbConfig)
|
|
return NULL;
|
|
parselist++;
|
|
desiredVisualID = *parselist++;
|
|
break;
|
|
case GLX_X_RENDERABLE:
|
|
case GLX_MAX_PBUFFER_WIDTH:
|
|
case GLX_MAX_PBUFFER_HEIGHT:
|
|
case GLX_MAX_PBUFFER_PIXELS:
|
|
if (!fbConfig)
|
|
return NULL; /* invalid config option */
|
|
parselist += 2; /* ignore the parameter */
|
|
break;
|
|
|
|
case GLX_BIND_TO_TEXTURE_RGB_EXT:
|
|
parselist++; /*skip*/
|
|
break;
|
|
case GLX_BIND_TO_TEXTURE_RGBA_EXT:
|
|
parselist++; /*skip*/
|
|
break;
|
|
case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
|
|
parselist++; /*skip*/
|
|
break;
|
|
case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
|
|
parselist++;
|
|
if (*parselist & ~(GLX_TEXTURE_1D_BIT_EXT |
|
|
GLX_TEXTURE_2D_BIT_EXT |
|
|
GLX_TEXTURE_RECTANGLE_BIT_EXT)) {
|
|
/* invalid bit */
|
|
return NULL;
|
|
}
|
|
break;
|
|
case GLX_Y_INVERTED_EXT:
|
|
parselist++; /*skip*/
|
|
break;
|
|
|
|
case None:
|
|
/* end of list */
|
|
break;
|
|
|
|
default:
|
|
/* undefined attribute */
|
|
_mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()",
|
|
*parselist);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
(void) caveat;
|
|
|
|
if (num_samples < 0) {
|
|
_mesa_warning(NULL, "GLX_SAMPLES_ARB: number of samples must not be negative");
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Since we're only simulating the GLX extension this function will never
|
|
* find any real GL visuals. Instead, all we can do is try to find an RGB
|
|
* or CI visual of appropriate depth. Other requested attributes such as
|
|
* double buffering, depth buffer, etc. will be associated with the X
|
|
* visual and stored in the VisualTable[].
|
|
*/
|
|
if (desiredVisualID != -1) {
|
|
/* try to get a specific visual, by visualID */
|
|
XVisualInfo temp;
|
|
int n;
|
|
temp.visualid = desiredVisualID;
|
|
temp.screen = screen;
|
|
vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n);
|
|
if (vis) {
|
|
/* give the visual some useful GLX attributes */
|
|
double_flag = GL_TRUE;
|
|
rgb_flag = GL_TRUE;
|
|
}
|
|
}
|
|
else if (level==0) {
|
|
/* normal color planes */
|
|
/* Get an RGB visual */
|
|
int min_rgb = min_red + min_green + min_blue;
|
|
if (min_rgb>1 && min_rgb<8) {
|
|
/* a special case to be sure we can get a monochrome visual */
|
|
min_rgb = 1;
|
|
}
|
|
vis = choose_x_visual( dpy, screen, min_rgb, visual_type );
|
|
}
|
|
else {
|
|
_mesa_warning(NULL, "overlay not supported");
|
|
return NULL;
|
|
}
|
|
|
|
if (vis) {
|
|
/* Note: we're not exactly obeying the glXChooseVisual rules here.
|
|
* When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
|
|
* largest depth buffer size, which is 32bits/value. Instead, we
|
|
* return 16 to maintain performance with earlier versions of Mesa.
|
|
*/
|
|
if (stencil_size > 0)
|
|
depth_size = 24; /* if Z and stencil, always use 24+8 format */
|
|
else if (depth_size > 24)
|
|
depth_size = 32;
|
|
else if (depth_size > 16)
|
|
depth_size = 24;
|
|
else if (depth_size > 0) {
|
|
depth_size = default_depth_bits();
|
|
}
|
|
|
|
if (!alpha_flag) {
|
|
alpha_flag = default_alpha_bits() > 0;
|
|
}
|
|
|
|
/* we only support one size of stencil and accum buffers. */
|
|
if (stencil_size > 0)
|
|
stencil_size = 8;
|
|
|
|
if (accumRedSize > 0 ||
|
|
accumGreenSize > 0 ||
|
|
accumBlueSize > 0 ||
|
|
accumAlphaSize > 0) {
|
|
|
|
accumRedSize =
|
|
accumGreenSize =
|
|
accumBlueSize = default_accum_bits();
|
|
|
|
accumAlphaSize = alpha_flag ? accumRedSize : 0;
|
|
}
|
|
|
|
xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag,
|
|
stereo_flag, depth_size, stencil_size,
|
|
accumRedSize, accumGreenSize,
|
|
accumBlueSize, accumAlphaSize, level, numAux,
|
|
num_samples );
|
|
}
|
|
|
|
return xmvis;
|
|
}
|
|
|
|
|
|
PUBLIC XVisualInfo *
|
|
glXChooseVisual( Display *dpy, int screen, int *list )
|
|
{
|
|
XMesaVisual xmvis;
|
|
|
|
/* register ourselves as an extension on this display */
|
|
register_with_display(dpy);
|
|
|
|
xmvis = choose_visual(dpy, screen, list, GL_FALSE);
|
|
if (xmvis) {
|
|
/* create a new vishandle - the cached one may be stale */
|
|
xmvis->vishandle = malloc(sizeof(XVisualInfo));
|
|
if (xmvis->vishandle) {
|
|
memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
|
|
}
|
|
return xmvis->vishandle;
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Helper function used by other glXCreateContext functions.
|
|
*/
|
|
static GLXContext
|
|
create_context(Display *dpy, XMesaVisual xmvis,
|
|
XMesaContext shareCtx, Bool direct,
|
|
unsigned major, unsigned minor,
|
|
unsigned profileMask, unsigned contextFlags)
|
|
{
|
|
GLXContext glxCtx;
|
|
|
|
if (!dpy || !xmvis)
|
|
return 0;
|
|
|
|
glxCtx = CALLOC_STRUCT(__GLXcontextRec);
|
|
if (!glxCtx)
|
|
return 0;
|
|
|
|
/* deallocate unused windows/buffers */
|
|
#if 0
|
|
XMesaGarbageCollect();
|
|
#endif
|
|
|
|
glxCtx->xmesaContext = XMesaCreateContext(xmvis, shareCtx, major, minor,
|
|
profileMask, contextFlags);
|
|
if (!glxCtx->xmesaContext) {
|
|
free(glxCtx);
|
|
return NULL;
|
|
}
|
|
|
|
glxCtx->isDirect = DEFAULT_DIRECT;
|
|
glxCtx->currentDpy = dpy;
|
|
glxCtx->xid = (XID) glxCtx; /* self pointer */
|
|
|
|
return glxCtx;
|
|
}
|
|
|
|
|
|
PUBLIC GLXContext
|
|
glXCreateContext( Display *dpy, XVisualInfo *visinfo,
|
|
GLXContext shareCtx, Bool direct )
|
|
{
|
|
XMesaVisual xmvis;
|
|
|
|
xmvis = find_glx_visual( dpy, visinfo );
|
|
if (!xmvis) {
|
|
/* This visual wasn't found with glXChooseVisual() */
|
|
xmvis = create_glx_visual( dpy, visinfo );
|
|
if (!xmvis) {
|
|
/* unusable visual */
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return create_context(dpy, xmvis,
|
|
shareCtx ? shareCtx->xmesaContext : NULL,
|
|
direct,
|
|
1, 0, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB, 0x0);
|
|
}
|
|
|
|
|
|
/* GLX 1.3 and later */
|
|
PUBLIC Bool
|
|
glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
|
|
GLXDrawable read, GLXContext ctx )
|
|
{
|
|
GLXContext glxCtx = ctx;
|
|
GLXContext current = GetCurrentContext();
|
|
static boolean firsttime = 1, no_rast = 0;
|
|
|
|
if (firsttime) {
|
|
no_rast = getenv("SP_NO_RAST") != NULL;
|
|
firsttime = 0;
|
|
}
|
|
|
|
if (ctx) {
|
|
XMesaBuffer drawBuffer = NULL, readBuffer = NULL;
|
|
XMesaContext xmctx = glxCtx->xmesaContext;
|
|
|
|
/* either both must be null, or both must be non-null */
|
|
if (!draw != !read)
|
|
return False;
|
|
|
|
if (draw) {
|
|
/* Find the XMesaBuffer which corresponds to 'draw' */
|
|
drawBuffer = XMesaFindBuffer( dpy, draw );
|
|
if (!drawBuffer) {
|
|
/* drawable must be a new window! */
|
|
drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw );
|
|
if (!drawBuffer) {
|
|
/* Out of memory, or context/drawable depth mismatch */
|
|
return False;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (read) {
|
|
/* Find the XMesaBuffer which corresponds to 'read' */
|
|
readBuffer = XMesaFindBuffer( dpy, read );
|
|
if (!readBuffer) {
|
|
/* drawable must be a new window! */
|
|
readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read );
|
|
if (!readBuffer) {
|
|
/* Out of memory, or context/drawable depth mismatch */
|
|
return False;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (no_rast && current == ctx)
|
|
return True;
|
|
|
|
/* Now make current! */
|
|
if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) {
|
|
ctx->currentDpy = dpy;
|
|
ctx->currentDrawable = draw;
|
|
ctx->currentReadable = read;
|
|
SetCurrentContext(ctx);
|
|
return True;
|
|
}
|
|
else {
|
|
return False;
|
|
}
|
|
}
|
|
else if (!ctx && !draw && !read) {
|
|
/* release current context w/out assigning new one. */
|
|
XMesaMakeCurrent2( NULL, NULL, NULL );
|
|
SetCurrentContext(NULL);
|
|
return True;
|
|
}
|
|
else {
|
|
/* We were given an invalid set of arguments */
|
|
return False;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC Bool
|
|
glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
|
|
{
|
|
return glXMakeContextCurrent( dpy, drawable, drawable, ctx );
|
|
}
|
|
|
|
|
|
PUBLIC GLXContext
|
|
glXGetCurrentContext(void)
|
|
{
|
|
return GetCurrentContext();
|
|
}
|
|
|
|
|
|
PUBLIC Display *
|
|
glXGetCurrentDisplay(void)
|
|
{
|
|
GLXContext glxCtx = glXGetCurrentContext();
|
|
|
|
return glxCtx ? glxCtx->currentDpy : NULL;
|
|
}
|
|
|
|
|
|
PUBLIC Display *
|
|
glXGetCurrentDisplayEXT(void)
|
|
{
|
|
return glXGetCurrentDisplay();
|
|
}
|
|
|
|
|
|
PUBLIC GLXDrawable
|
|
glXGetCurrentDrawable(void)
|
|
{
|
|
GLXContext gc = glXGetCurrentContext();
|
|
return gc ? gc->currentDrawable : 0;
|
|
}
|
|
|
|
|
|
PUBLIC GLXDrawable
|
|
glXGetCurrentReadDrawable(void)
|
|
{
|
|
GLXContext gc = glXGetCurrentContext();
|
|
return gc ? gc->currentReadable : 0;
|
|
}
|
|
|
|
|
|
PUBLIC GLXDrawable
|
|
glXGetCurrentReadDrawableSGI(void)
|
|
{
|
|
return glXGetCurrentReadDrawable();
|
|
}
|
|
|
|
|
|
PUBLIC GLXPixmap
|
|
glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap )
|
|
{
|
|
XMesaVisual v;
|
|
XMesaBuffer b;
|
|
|
|
v = find_glx_visual( dpy, visinfo );
|
|
if (!v) {
|
|
v = create_glx_visual( dpy, visinfo );
|
|
if (!v) {
|
|
/* unusable visual */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
|
|
if (!b) {
|
|
return 0;
|
|
}
|
|
return b->ws.drawable;
|
|
}
|
|
|
|
|
|
/*** GLX_MESA_pixmap_colormap ***/
|
|
|
|
PUBLIC GLXPixmap
|
|
glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
|
|
Pixmap pixmap, Colormap cmap )
|
|
{
|
|
XMesaVisual v;
|
|
XMesaBuffer b;
|
|
|
|
v = find_glx_visual( dpy, visinfo );
|
|
if (!v) {
|
|
v = create_glx_visual( dpy, visinfo );
|
|
if (!v) {
|
|
/* unusable visual */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
b = XMesaCreatePixmapBuffer( v, pixmap, cmap );
|
|
if (!b) {
|
|
return 0;
|
|
}
|
|
return b->ws.drawable;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, pixmap);
|
|
if (b) {
|
|
XMesaDestroyBuffer(b);
|
|
}
|
|
else if (getenv("MESA_DEBUG")) {
|
|
_mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
|
|
unsigned long mask )
|
|
{
|
|
XMesaContext xm_src = src->xmesaContext;
|
|
XMesaContext xm_dst = dst->xmesaContext;
|
|
(void) dpy;
|
|
if (GetCurrentContext() == src) {
|
|
glFlush();
|
|
}
|
|
XMesaCopyContext(xm_src, xm_dst, mask);
|
|
}
|
|
|
|
|
|
PUBLIC Bool
|
|
glXQueryExtension( Display *dpy, int *errorBase, int *eventBase )
|
|
{
|
|
int op, ev, err;
|
|
/* Mesa's GLX isn't really an X extension but we try to act like one. */
|
|
if (!XQueryExtension(dpy, GLX_EXTENSION_NAME, &op, &ev, &err))
|
|
ev = err = 0;
|
|
if (errorBase)
|
|
*errorBase = err;
|
|
if (eventBase)
|
|
*eventBase = ev;
|
|
return True; /* we're faking GLX so always return success */
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyContext( Display *dpy, GLXContext ctx )
|
|
{
|
|
if (ctx) {
|
|
GLXContext glxCtx = ctx;
|
|
(void) dpy;
|
|
XMesaDestroyContext( glxCtx->xmesaContext );
|
|
XMesaGarbageCollect();
|
|
free(glxCtx);
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC Bool
|
|
glXIsDirect( Display *dpy, GLXContext ctx )
|
|
{
|
|
return ctx ? ctx->isDirect : False;
|
|
}
|
|
|
|
|
|
|
|
PUBLIC void
|
|
glXSwapBuffers( Display *dpy, GLXDrawable drawable )
|
|
{
|
|
XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
|
|
static boolean firsttime = 1, no_rast = 0;
|
|
|
|
if (firsttime) {
|
|
no_rast = getenv("SP_NO_RAST") != NULL;
|
|
firsttime = 0;
|
|
}
|
|
|
|
if (no_rast)
|
|
return;
|
|
|
|
if (buffer) {
|
|
XMesaSwapBuffers(buffer);
|
|
}
|
|
else if (getenv("MESA_DEBUG")) {
|
|
_mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
|
|
(int) drawable);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_MESA_copy_sub_buffer ***/
|
|
|
|
PUBLIC void
|
|
glXCopySubBufferMESA(Display *dpy, GLXDrawable drawable,
|
|
int x, int y, int width, int height)
|
|
{
|
|
XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
|
|
if (buffer) {
|
|
XMesaCopySubBuffer(buffer, x, y, width, height);
|
|
}
|
|
else if (getenv("MESA_DEBUG")) {
|
|
_mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC Bool
|
|
glXQueryVersion( Display *dpy, int *maj, int *min )
|
|
{
|
|
(void) dpy;
|
|
/* Return GLX version, not Mesa version */
|
|
assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION);
|
|
*maj = CLIENT_MAJOR_VERSION;
|
|
*min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION );
|
|
return True;
|
|
}
|
|
|
|
|
|
/*
|
|
* Query the GLX attributes of the given XVisualInfo.
|
|
*/
|
|
static int
|
|
get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
|
|
{
|
|
assert(xmvis);
|
|
switch(attrib) {
|
|
case GLX_USE_GL:
|
|
if (fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = (int) True;
|
|
return 0;
|
|
case GLX_BUFFER_SIZE:
|
|
*value = xmvis->visinfo->depth;
|
|
return 0;
|
|
case GLX_LEVEL:
|
|
*value = 0;
|
|
return 0;
|
|
case GLX_RGBA:
|
|
if (fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = True;
|
|
return 0;
|
|
case GLX_DOUBLEBUFFER:
|
|
*value = (int) xmvis->mesa_visual.doubleBufferMode;
|
|
return 0;
|
|
case GLX_STEREO:
|
|
*value = (int) xmvis->mesa_visual.stereoMode;
|
|
return 0;
|
|
case GLX_AUX_BUFFERS:
|
|
*value = 0;
|
|
return 0;
|
|
case GLX_RED_SIZE:
|
|
*value = xmvis->mesa_visual.redBits;
|
|
return 0;
|
|
case GLX_GREEN_SIZE:
|
|
*value = xmvis->mesa_visual.greenBits;
|
|
return 0;
|
|
case GLX_BLUE_SIZE:
|
|
*value = xmvis->mesa_visual.blueBits;
|
|
return 0;
|
|
case GLX_ALPHA_SIZE:
|
|
*value = xmvis->mesa_visual.alphaBits;
|
|
return 0;
|
|
case GLX_DEPTH_SIZE:
|
|
*value = xmvis->mesa_visual.depthBits;
|
|
return 0;
|
|
case GLX_STENCIL_SIZE:
|
|
*value = xmvis->mesa_visual.stencilBits;
|
|
return 0;
|
|
case GLX_ACCUM_RED_SIZE:
|
|
*value = xmvis->mesa_visual.accumRedBits;
|
|
return 0;
|
|
case GLX_ACCUM_GREEN_SIZE:
|
|
*value = xmvis->mesa_visual.accumGreenBits;
|
|
return 0;
|
|
case GLX_ACCUM_BLUE_SIZE:
|
|
*value = xmvis->mesa_visual.accumBlueBits;
|
|
return 0;
|
|
case GLX_ACCUM_ALPHA_SIZE:
|
|
*value = xmvis->mesa_visual.accumAlphaBits;
|
|
return 0;
|
|
|
|
/*
|
|
* GLX_EXT_visual_info extension
|
|
*/
|
|
case GLX_X_VISUAL_TYPE_EXT:
|
|
switch (xmvis->visinfo->CLASS) {
|
|
case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0;
|
|
case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0;
|
|
case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0;
|
|
case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0;
|
|
case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0;
|
|
case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0;
|
|
}
|
|
return 0;
|
|
case GLX_TRANSPARENT_TYPE_EXT:
|
|
/* normal planes */
|
|
*value = GLX_NONE_EXT;
|
|
return 0;
|
|
case GLX_TRANSPARENT_INDEX_VALUE_EXT:
|
|
/* undefined */
|
|
return 0;
|
|
case GLX_TRANSPARENT_RED_VALUE_EXT:
|
|
/* undefined */
|
|
return 0;
|
|
case GLX_TRANSPARENT_GREEN_VALUE_EXT:
|
|
/* undefined */
|
|
return 0;
|
|
case GLX_TRANSPARENT_BLUE_VALUE_EXT:
|
|
/* undefined */
|
|
return 0;
|
|
case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
|
|
/* undefined */
|
|
return 0;
|
|
|
|
/*
|
|
* GLX_EXT_visual_info extension
|
|
*/
|
|
case GLX_VISUAL_CAVEAT_EXT:
|
|
*value = GLX_NONE_EXT;
|
|
return 0;
|
|
|
|
/*
|
|
* GLX_ARB_multisample
|
|
*/
|
|
case GLX_SAMPLE_BUFFERS_ARB:
|
|
*value = xmvis->mesa_visual.samples > 0;
|
|
return 0;
|
|
case GLX_SAMPLES_ARB:
|
|
*value = xmvis->mesa_visual.samples;
|
|
return 0;
|
|
|
|
/*
|
|
* For FBConfigs:
|
|
*/
|
|
case GLX_SCREEN_EXT:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = xmvis->visinfo->screen;
|
|
break;
|
|
case GLX_DRAWABLE_TYPE: /*SGIX too */
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
|
|
break;
|
|
case GLX_RENDER_TYPE_SGIX:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = GLX_RGBA_BIT;
|
|
break;
|
|
case GLX_X_RENDERABLE_SGIX:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = True; /* XXX really? */
|
|
break;
|
|
case GLX_FBCONFIG_ID_SGIX:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = xmvis->visinfo->visualid;
|
|
break;
|
|
case GLX_MAX_PBUFFER_WIDTH:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
/* XXX should be same as ctx->Const.MaxRenderbufferSize */
|
|
*value = DisplayWidth(xmvis->display, xmvis->visinfo->screen);
|
|
break;
|
|
case GLX_MAX_PBUFFER_HEIGHT:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = DisplayHeight(xmvis->display, xmvis->visinfo->screen);
|
|
break;
|
|
case GLX_MAX_PBUFFER_PIXELS:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) *
|
|
DisplayHeight(xmvis->display, xmvis->visinfo->screen);
|
|
break;
|
|
case GLX_VISUAL_ID:
|
|
if (!fbconfig)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
*value = xmvis->visinfo->visualid;
|
|
break;
|
|
|
|
case GLX_BIND_TO_TEXTURE_RGB_EXT:
|
|
*value = True; /*XXX*/
|
|
break;
|
|
case GLX_BIND_TO_TEXTURE_RGBA_EXT:
|
|
/* XXX review */
|
|
*value = xmvis->mesa_visual.alphaBits > 0 ? True : False;
|
|
break;
|
|
case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
|
|
*value = True; /*XXX*/
|
|
break;
|
|
case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
|
|
*value = (GLX_TEXTURE_1D_BIT_EXT |
|
|
GLX_TEXTURE_2D_BIT_EXT |
|
|
GLX_TEXTURE_RECTANGLE_BIT_EXT); /*XXX*/
|
|
break;
|
|
case GLX_Y_INVERTED_EXT:
|
|
*value = True; /*XXX*/
|
|
break;
|
|
|
|
default:
|
|
return GLX_BAD_ATTRIBUTE;
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
|
|
PUBLIC int
|
|
glXGetConfig( Display *dpy, XVisualInfo *visinfo,
|
|
int attrib, int *value )
|
|
{
|
|
XMesaVisual xmvis;
|
|
int k;
|
|
if (!dpy || !visinfo)
|
|
return GLX_BAD_ATTRIBUTE;
|
|
|
|
xmvis = find_glx_visual( dpy, visinfo );
|
|
if (!xmvis) {
|
|
/* this visual wasn't obtained with glXChooseVisual */
|
|
xmvis = create_glx_visual( dpy, visinfo );
|
|
if (!xmvis) {
|
|
/* this visual can't be used for GL rendering */
|
|
if (attrib==GLX_USE_GL) {
|
|
*value = (int) False;
|
|
return 0;
|
|
}
|
|
else {
|
|
return GLX_BAD_VISUAL;
|
|
}
|
|
}
|
|
}
|
|
|
|
k = get_config(xmvis, attrib, value, GL_FALSE);
|
|
return k;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXWaitGL( void )
|
|
{
|
|
XMesaContext xmesa = XMesaGetCurrentContext();
|
|
XMesaFlush( xmesa );
|
|
}
|
|
|
|
|
|
|
|
PUBLIC void
|
|
glXWaitX( void )
|
|
{
|
|
XMesaContext xmesa = XMesaGetCurrentContext();
|
|
XMesaFlush( xmesa );
|
|
}
|
|
|
|
|
|
static const char *
|
|
get_extensions( void )
|
|
{
|
|
return EXTENSIONS;
|
|
}
|
|
|
|
|
|
|
|
/* GLX 1.1 and later */
|
|
PUBLIC const char *
|
|
glXQueryExtensionsString( Display *dpy, int screen )
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
return get_extensions();
|
|
}
|
|
|
|
|
|
|
|
/* GLX 1.1 and later */
|
|
PUBLIC const char *
|
|
glXQueryServerString( Display *dpy, int screen, int name )
|
|
{
|
|
static char version[1000];
|
|
sprintf(version, "%d.%d %s",
|
|
SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, xmesa_get_name());
|
|
|
|
(void) dpy;
|
|
(void) screen;
|
|
|
|
switch (name) {
|
|
case GLX_EXTENSIONS:
|
|
return get_extensions();
|
|
case GLX_VENDOR:
|
|
return VENDOR;
|
|
case GLX_VERSION:
|
|
return version;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/* GLX 1.1 and later */
|
|
PUBLIC const char *
|
|
glXGetClientString( Display *dpy, int name )
|
|
{
|
|
static char version[1000];
|
|
sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION,
|
|
CLIENT_MINOR_VERSION, xmesa_get_name());
|
|
|
|
(void) dpy;
|
|
|
|
switch (name) {
|
|
case GLX_EXTENSIONS:
|
|
return get_extensions();
|
|
case GLX_VENDOR:
|
|
return VENDOR;
|
|
case GLX_VERSION:
|
|
return version;
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* GLX 1.3 and later
|
|
*/
|
|
|
|
|
|
PUBLIC int
|
|
glXGetFBConfigAttrib(Display *dpy, GLXFBConfig config,
|
|
int attribute, int *value)
|
|
{
|
|
XMesaVisual v = (XMesaVisual) config;
|
|
(void) dpy;
|
|
(void) config;
|
|
|
|
if (!dpy || !config || !value)
|
|
return -1;
|
|
|
|
return get_config(v, attribute, value, GL_TRUE);
|
|
}
|
|
|
|
|
|
PUBLIC GLXFBConfig *
|
|
glXGetFBConfigs( Display *dpy, int screen, int *nelements )
|
|
{
|
|
XVisualInfo *visuals, visTemplate;
|
|
const long visMask = VisualScreenMask;
|
|
int i;
|
|
|
|
/* Get list of all X visuals */
|
|
visTemplate.screen = screen;
|
|
visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
|
|
if (*nelements > 0) {
|
|
XMesaVisual *results = malloc(*nelements * sizeof(XMesaVisual));
|
|
if (!results) {
|
|
*nelements = 0;
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < *nelements; i++) {
|
|
results[i] = create_glx_visual(dpy, visuals + i);
|
|
if (!results[i]) {
|
|
*nelements = i;
|
|
break;
|
|
}
|
|
}
|
|
return (GLXFBConfig *) results;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
PUBLIC GLXFBConfig *
|
|
glXChooseFBConfig(Display *dpy, int screen,
|
|
const int *attribList, int *nitems)
|
|
{
|
|
XMesaVisual xmvis;
|
|
|
|
/* register ourselves as an extension on this display */
|
|
register_with_display(dpy);
|
|
|
|
if (!attribList || !attribList[0]) {
|
|
/* return list of all configs (per GLX_SGIX_fbconfig spec) */
|
|
return glXGetFBConfigs(dpy, screen, nitems);
|
|
}
|
|
|
|
xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
|
|
if (xmvis) {
|
|
GLXFBConfig *config = malloc(sizeof(XMesaVisual));
|
|
if (!config) {
|
|
*nitems = 0;
|
|
return NULL;
|
|
}
|
|
*nitems = 1;
|
|
config[0] = (GLXFBConfig) xmvis;
|
|
return (GLXFBConfig *) config;
|
|
}
|
|
else {
|
|
*nitems = 0;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC XVisualInfo *
|
|
glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
|
|
{
|
|
if (dpy && config) {
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
#if 0
|
|
return xmvis->vishandle;
|
|
#else
|
|
/* create a new vishandle - the cached one may be stale */
|
|
xmvis->vishandle = malloc(sizeof(XVisualInfo));
|
|
if (xmvis->vishandle) {
|
|
memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
|
|
}
|
|
return xmvis->vishandle;
|
|
#endif
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC GLXWindow
|
|
glXCreateWindow(Display *dpy, GLXFBConfig config, Window win,
|
|
const int *attribList)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
XMesaBuffer xmbuf;
|
|
if (!xmvis)
|
|
return 0;
|
|
|
|
xmbuf = XMesaCreateWindowBuffer(xmvis, win);
|
|
if (!xmbuf)
|
|
return 0;
|
|
|
|
(void) dpy;
|
|
(void) attribList; /* Ignored in GLX 1.3 */
|
|
|
|
return win; /* A hack for now */
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyWindow( Display *dpy, GLXWindow window )
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable) window);
|
|
if (b)
|
|
XMesaDestroyBuffer(b);
|
|
/* don't destroy X window */
|
|
}
|
|
|
|
|
|
/* XXX untested */
|
|
PUBLIC GLXPixmap
|
|
glXCreatePixmap(Display *dpy, GLXFBConfig config, Pixmap pixmap,
|
|
const int *attribList)
|
|
{
|
|
XMesaVisual v = (XMesaVisual) config;
|
|
XMesaBuffer b;
|
|
const int *attr;
|
|
int target = 0, format = 0, mipmap = 0;
|
|
int value;
|
|
|
|
if (!dpy || !config || !pixmap)
|
|
return 0;
|
|
|
|
for (attr = attribList; attr && *attr; attr++) {
|
|
switch (*attr) {
|
|
case GLX_TEXTURE_FORMAT_EXT:
|
|
attr++;
|
|
switch (*attr) {
|
|
case GLX_TEXTURE_FORMAT_NONE_EXT:
|
|
case GLX_TEXTURE_FORMAT_RGB_EXT:
|
|
case GLX_TEXTURE_FORMAT_RGBA_EXT:
|
|
format = *attr;
|
|
break;
|
|
default:
|
|
/* error */
|
|
return 0;
|
|
}
|
|
break;
|
|
case GLX_TEXTURE_TARGET_EXT:
|
|
attr++;
|
|
switch (*attr) {
|
|
case GLX_TEXTURE_1D_EXT:
|
|
case GLX_TEXTURE_2D_EXT:
|
|
case GLX_TEXTURE_RECTANGLE_EXT:
|
|
target = *attr;
|
|
break;
|
|
default:
|
|
/* error */
|
|
return 0;
|
|
}
|
|
break;
|
|
case GLX_MIPMAP_TEXTURE_EXT:
|
|
attr++;
|
|
if (*attr)
|
|
mipmap = 1;
|
|
break;
|
|
default:
|
|
/* error */
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (format == GLX_TEXTURE_FORMAT_RGB_EXT) {
|
|
if (get_config(v, GLX_BIND_TO_TEXTURE_RGB_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| !value) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
else if (format == GLX_TEXTURE_FORMAT_RGBA_EXT) {
|
|
if (get_config(v, GLX_BIND_TO_TEXTURE_RGBA_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| !value) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
if (mipmap) {
|
|
if (get_config(v, GLX_BIND_TO_MIPMAP_TEXTURE_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| !value) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
if (target == GLX_TEXTURE_1D_EXT) {
|
|
if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| (value & GLX_TEXTURE_1D_BIT_EXT) == 0) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
else if (target == GLX_TEXTURE_2D_EXT) {
|
|
if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| (value & GLX_TEXTURE_2D_BIT_EXT) == 0) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
if (target == GLX_TEXTURE_RECTANGLE_EXT) {
|
|
if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
|
|
&value, GL_TRUE) != Success
|
|
|| (value & GLX_TEXTURE_RECTANGLE_BIT_EXT) == 0) {
|
|
return 0; /* error! */
|
|
}
|
|
}
|
|
|
|
if (format || target || mipmap) {
|
|
/* texture from pixmap */
|
|
b = XMesaCreatePixmapTextureBuffer(v, pixmap, 0, format, target, mipmap);
|
|
}
|
|
else {
|
|
b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
|
|
}
|
|
if (!b) {
|
|
return 0;
|
|
}
|
|
|
|
return pixmap;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable)pixmap);
|
|
if (b)
|
|
XMesaDestroyBuffer(b);
|
|
/* don't destroy X pixmap */
|
|
}
|
|
|
|
|
|
PUBLIC GLXPbuffer
|
|
glXCreatePbuffer(Display *dpy, GLXFBConfig config, const int *attribList)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
XMesaBuffer xmbuf;
|
|
const int *attrib;
|
|
int width = 0, height = 0;
|
|
GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
|
|
|
|
(void) dpy;
|
|
|
|
for (attrib = attribList; *attrib; attrib++) {
|
|
switch (*attrib) {
|
|
case GLX_PBUFFER_WIDTH:
|
|
attrib++;
|
|
width = *attrib;
|
|
break;
|
|
case GLX_PBUFFER_HEIGHT:
|
|
attrib++;
|
|
height = *attrib;
|
|
break;
|
|
case GLX_PRESERVED_CONTENTS:
|
|
attrib++;
|
|
preserveContents = *attrib;
|
|
break;
|
|
case GLX_LARGEST_PBUFFER:
|
|
attrib++;
|
|
useLargest = *attrib;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (width == 0 || height == 0)
|
|
return 0;
|
|
|
|
if (width > PBUFFER_MAX_SIZE || height > PBUFFER_MAX_SIZE) {
|
|
/* If allocation would have failed and GLX_LARGEST_PBUFFER is set,
|
|
* allocate the largest possible buffer.
|
|
*/
|
|
if (useLargest) {
|
|
width = PBUFFER_MAX_SIZE;
|
|
height = PBUFFER_MAX_SIZE;
|
|
}
|
|
}
|
|
|
|
xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
|
|
/* A GLXPbuffer handle must be an X Drawable because that's what
|
|
* glXMakeCurrent takes.
|
|
*/
|
|
if (xmbuf) {
|
|
xmbuf->largestPbuffer = useLargest;
|
|
xmbuf->preservedContents = preserveContents;
|
|
return (GLXPbuffer) xmbuf->ws.drawable;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, pbuf);
|
|
if (b) {
|
|
XMesaDestroyBuffer(b);
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXQueryDrawable(Display *dpy, GLXDrawable draw, int attribute,
|
|
unsigned int *value)
|
|
{
|
|
GLuint width, height;
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
|
|
if (!xmbuf) {
|
|
generate_error(dpy, GLXBadDrawable, draw, X_GLXGetDrawableAttributes, False);
|
|
return;
|
|
}
|
|
|
|
/* make sure buffer's dimensions are up to date */
|
|
xmesa_get_window_size(dpy, xmbuf, &width, &height);
|
|
|
|
switch (attribute) {
|
|
case GLX_WIDTH:
|
|
*value = width;
|
|
break;
|
|
case GLX_HEIGHT:
|
|
*value = height;
|
|
break;
|
|
case GLX_PRESERVED_CONTENTS:
|
|
*value = xmbuf->preservedContents;
|
|
break;
|
|
case GLX_LARGEST_PBUFFER:
|
|
*value = xmbuf->largestPbuffer;
|
|
break;
|
|
case GLX_FBCONFIG_ID:
|
|
*value = xmbuf->xm_visual->visinfo->visualid;
|
|
return;
|
|
case GLX_TEXTURE_FORMAT_EXT:
|
|
*value = xmbuf->TextureFormat;
|
|
break;
|
|
case GLX_TEXTURE_TARGET_EXT:
|
|
*value = xmbuf->TextureTarget;
|
|
break;
|
|
case GLX_MIPMAP_TEXTURE_EXT:
|
|
*value = xmbuf->TextureMipmap;
|
|
break;
|
|
|
|
default:
|
|
generate_error(dpy, BadValue, 0, X_GLXCreateContextAttribsARB, true);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC GLXContext
|
|
glXCreateNewContext( Display *dpy, GLXFBConfig config,
|
|
int renderType, GLXContext shareCtx, Bool direct )
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
|
|
if (!dpy || !config ||
|
|
(renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
|
|
return 0;
|
|
|
|
return create_context(dpy, xmvis,
|
|
shareCtx ? shareCtx->xmesaContext : NULL,
|
|
direct,
|
|
1, 0, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB, 0x0);
|
|
}
|
|
|
|
|
|
PUBLIC int
|
|
glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
|
|
{
|
|
GLXContext glxCtx = ctx;
|
|
XMesaContext xmctx = glxCtx->xmesaContext;
|
|
|
|
(void) dpy;
|
|
(void) ctx;
|
|
|
|
switch (attribute) {
|
|
case GLX_FBCONFIG_ID:
|
|
*value = xmctx->xm_visual->visinfo->visualid;
|
|
break;
|
|
case GLX_RENDER_TYPE:
|
|
*value = GLX_RGBA_TYPE;
|
|
break;
|
|
case GLX_SCREEN:
|
|
*value = 0;
|
|
return Success;
|
|
default:
|
|
return GLX_BAD_ATTRIBUTE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
|
|
{
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
|
|
if (xmbuf)
|
|
xmbuf->selectedEvents = mask;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXGetSelectedEvent(Display *dpy, GLXDrawable drawable, unsigned long *mask)
|
|
{
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
|
|
if (xmbuf)
|
|
*mask = xmbuf->selectedEvents;
|
|
else
|
|
*mask = 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGI_swap_control ***/
|
|
|
|
PUBLIC int
|
|
glXSwapIntervalSGI(int interval)
|
|
{
|
|
(void) interval;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGI_video_sync ***/
|
|
|
|
static unsigned int FrameCounter = 0;
|
|
|
|
PUBLIC int
|
|
glXGetVideoSyncSGI(unsigned int *count)
|
|
{
|
|
/* this is a bogus implementation */
|
|
*count = FrameCounter++;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
|
|
{
|
|
if (divisor <= 0 || remainder < 0)
|
|
return GLX_BAD_VALUE;
|
|
/* this is a bogus implementation */
|
|
FrameCounter++;
|
|
while (FrameCounter % divisor != remainder)
|
|
FrameCounter++;
|
|
*count = FrameCounter;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGI_make_current_read ***/
|
|
|
|
PUBLIC Bool
|
|
glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read,
|
|
GLXContext ctx)
|
|
{
|
|
return glXMakeContextCurrent( dpy, draw, read, ctx );
|
|
}
|
|
|
|
/* not used
|
|
static GLXDrawable
|
|
glXGetCurrentReadDrawableSGI(void)
|
|
{
|
|
return 0;
|
|
}
|
|
*/
|
|
|
|
|
|
/*** GLX_SGIX_video_source ***/
|
|
#if defined(_VL_H)
|
|
|
|
PUBLIC GLXVideoSourceSGIX
|
|
glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server,
|
|
VLPath path, int nodeClass, VLNode drainNode)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) server;
|
|
(void) path;
|
|
(void) nodeClass;
|
|
(void) drainNode;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC void
|
|
glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src)
|
|
{
|
|
(void) dpy;
|
|
(void) src;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
/*** GLX_EXT_import_context ***/
|
|
|
|
PUBLIC void
|
|
glXFreeContextEXT(Display *dpy, GLXContext context)
|
|
{
|
|
(void) dpy;
|
|
(void) context;
|
|
}
|
|
|
|
PUBLIC GLXContextID
|
|
glXGetContextIDEXT(const GLXContext context)
|
|
{
|
|
(void) context;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC GLXContext
|
|
glXImportContextEXT(Display *dpy, GLXContextID contextID)
|
|
{
|
|
(void) dpy;
|
|
(void) contextID;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute,
|
|
int *value)
|
|
{
|
|
(void) dpy;
|
|
(void) context;
|
|
(void) attribute;
|
|
(void) value;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGIX_fbconfig ***/
|
|
|
|
PUBLIC int
|
|
glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config,
|
|
int attribute, int *value)
|
|
{
|
|
return glXGetFBConfigAttrib(dpy, config, attribute, value);
|
|
}
|
|
|
|
PUBLIC GLXFBConfigSGIX *
|
|
glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list,
|
|
int *nelements)
|
|
{
|
|
return (GLXFBConfig *) glXChooseFBConfig(dpy, screen,
|
|
attrib_list, nelements);
|
|
}
|
|
|
|
|
|
PUBLIC GLXPixmap
|
|
glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config,
|
|
Pixmap pixmap)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0);
|
|
return xmbuf->ws.drawable; /* need to return an X ID */
|
|
}
|
|
|
|
|
|
PUBLIC GLXContext
|
|
glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config,
|
|
int renderType, GLXContext shareCtx,
|
|
Bool direct)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
|
|
if (!dpy || !config ||
|
|
(renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
|
|
return 0;
|
|
|
|
return create_context(dpy, xmvis,
|
|
shareCtx ? shareCtx->xmesaContext : NULL,
|
|
direct,
|
|
1, 0, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB, 0x0);
|
|
}
|
|
|
|
|
|
PUBLIC XVisualInfo *
|
|
glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config)
|
|
{
|
|
return glXGetVisualFromFBConfig(dpy, config);
|
|
}
|
|
|
|
|
|
PUBLIC GLXFBConfigSGIX
|
|
glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis)
|
|
{
|
|
XMesaVisual xmvis = find_glx_visual(dpy, vis);
|
|
if (!xmvis) {
|
|
/* This visual wasn't found with glXChooseVisual() */
|
|
xmvis = create_glx_visual(dpy, vis);
|
|
}
|
|
|
|
return (GLXFBConfigSGIX) xmvis;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGIX_pbuffer ***/
|
|
|
|
PUBLIC GLXPbufferSGIX
|
|
glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config,
|
|
unsigned int width, unsigned int height,
|
|
int *attribList)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
XMesaBuffer xmbuf;
|
|
const int *attrib;
|
|
GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
|
|
|
|
(void) dpy;
|
|
|
|
for (attrib = attribList; attrib && *attrib; attrib++) {
|
|
switch (*attrib) {
|
|
case GLX_PRESERVED_CONTENTS_SGIX:
|
|
attrib++;
|
|
preserveContents = *attrib; /* ignored */
|
|
break;
|
|
case GLX_LARGEST_PBUFFER_SGIX:
|
|
attrib++;
|
|
useLargest = *attrib; /* ignored */
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* not used at this time */
|
|
(void) useLargest;
|
|
(void) preserveContents;
|
|
|
|
xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
|
|
/* A GLXPbuffer handle must be an X Drawable because that's what
|
|
* glXMakeCurrent takes.
|
|
*/
|
|
return (GLXPbuffer) xmbuf->ws.drawable;
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf)
|
|
{
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
|
|
if (xmbuf) {
|
|
XMesaDestroyBuffer(xmbuf);
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute,
|
|
unsigned int *value)
|
|
{
|
|
const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
|
|
|
|
if (!xmbuf) {
|
|
/* Generate GLXBadPbufferSGIX for bad pbuffer */
|
|
return;
|
|
}
|
|
|
|
switch (attribute) {
|
|
case GLX_PRESERVED_CONTENTS_SGIX:
|
|
*value = True;
|
|
break;
|
|
case GLX_LARGEST_PBUFFER_SGIX:
|
|
*value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
|
|
break;
|
|
case GLX_WIDTH_SGIX:
|
|
*value = xmesa_buffer_width(xmbuf);
|
|
break;
|
|
case GLX_HEIGHT_SGIX:
|
|
*value = xmesa_buffer_height(xmbuf);
|
|
break;
|
|
case GLX_EVENT_MASK_SGIX:
|
|
*value = 0; /* XXX might be wrong */
|
|
break;
|
|
default:
|
|
*value = 0;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask)
|
|
{
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
|
|
if (xmbuf) {
|
|
/* Note: we'll never generate clobber events */
|
|
xmbuf->selectedEvents = mask;
|
|
}
|
|
}
|
|
|
|
|
|
PUBLIC void
|
|
glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable,
|
|
unsigned long *mask)
|
|
{
|
|
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
|
|
if (xmbuf) {
|
|
*mask = xmbuf->selectedEvents;
|
|
}
|
|
else {
|
|
*mask = 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGI_cushion ***/
|
|
|
|
PUBLIC void
|
|
glXCushionSGI(Display *dpy, Window win, float cushion)
|
|
{
|
|
(void) dpy;
|
|
(void) win;
|
|
(void) cushion;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGIX_video_resize ***/
|
|
|
|
PUBLIC int
|
|
glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel,
|
|
Window window)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) channel;
|
|
(void) window;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXChannelRectSGIX(Display *dpy, int screen, int channel,
|
|
int x, int y, int w, int h)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) channel;
|
|
(void) x;
|
|
(void) y;
|
|
(void) w;
|
|
(void) h;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXQueryChannelRectSGIX(Display *dpy, int screen, int channel,
|
|
int *x, int *y, int *w, int *h)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) channel;
|
|
(void) x;
|
|
(void) y;
|
|
(void) w;
|
|
(void) h;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel,
|
|
int *dx, int *dy, int *dw, int *dh)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) channel;
|
|
(void) dx;
|
|
(void) dy;
|
|
(void) dw;
|
|
(void) dh;
|
|
return 0;
|
|
}
|
|
|
|
PUBLIC int
|
|
glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype)
|
|
{
|
|
(void) dpy;
|
|
(void) screen;
|
|
(void) channel;
|
|
(void) synctype;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_SGIX_dmbuffer **/
|
|
|
|
#if defined(_DM_BUFFER_H_)
|
|
PUBLIC Bool
|
|
glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer,
|
|
DMparams *params, DMbuffer dmbuffer)
|
|
{
|
|
(void) dpy;
|
|
(void) pbuffer;
|
|
(void) params;
|
|
(void) dmbuffer;
|
|
return False;
|
|
}
|
|
#endif
|
|
|
|
|
|
/*** GLX_SUN_get_transparent_index ***/
|
|
|
|
PUBLIC Status
|
|
glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay,
|
|
unsigned long *pTransparent)
|
|
{
|
|
(void) dpy;
|
|
(void) overlay;
|
|
(void) underlay;
|
|
(void) pTransparent;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_MESA_release_buffers ***/
|
|
|
|
/*
|
|
* Release the depth, stencil, accum buffers attached to a GLXDrawable
|
|
* (a window or pixmap) prior to destroying the GLXDrawable.
|
|
*/
|
|
PUBLIC Bool
|
|
glXReleaseBuffersMESA( Display *dpy, GLXDrawable d )
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, d);
|
|
if (b) {
|
|
XMesaDestroyBuffer(b);
|
|
return True;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/*** GLX_EXT_texture_from_pixmap ***/
|
|
|
|
PUBLIC void
|
|
glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer,
|
|
const int *attrib_list)
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
|
|
if (b)
|
|
XMesaBindTexImage(dpy, b, buffer, attrib_list);
|
|
}
|
|
|
|
PUBLIC void
|
|
glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer)
|
|
{
|
|
XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
|
|
if (b)
|
|
XMesaReleaseTexImage(dpy, b, buffer);
|
|
}
|
|
|
|
|
|
|
|
/*** GLX_ARB_create_context ***/
|
|
|
|
|
|
GLXContext
|
|
glXCreateContextAttribsARB(Display *dpy, GLXFBConfig config,
|
|
GLXContext shareCtx, Bool direct,
|
|
const int *attrib_list)
|
|
{
|
|
XMesaVisual xmvis = (XMesaVisual) config;
|
|
int majorVersion = 1, minorVersion = 0;
|
|
int contextFlags = 0x0;
|
|
int profileMask = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
|
|
int renderType = GLX_RGBA_TYPE;
|
|
unsigned i;
|
|
Bool done = False;
|
|
const int contextFlagsAll = (GLX_CONTEXT_DEBUG_BIT_ARB |
|
|
GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB);
|
|
GLXContext ctx;
|
|
|
|
/* parse attrib_list */
|
|
for (i = 0; !done && attrib_list && attrib_list[i]; i++) {
|
|
switch (attrib_list[i]) {
|
|
case GLX_CONTEXT_MAJOR_VERSION_ARB:
|
|
majorVersion = attrib_list[++i];
|
|
break;
|
|
case GLX_CONTEXT_MINOR_VERSION_ARB:
|
|
minorVersion = attrib_list[++i];
|
|
break;
|
|
case GLX_CONTEXT_FLAGS_ARB:
|
|
contextFlags = attrib_list[++i];
|
|
break;
|
|
case GLX_CONTEXT_PROFILE_MASK_ARB:
|
|
profileMask = attrib_list[++i];
|
|
break;
|
|
case GLX_RENDER_TYPE:
|
|
renderType = attrib_list[++i];
|
|
break;
|
|
case 0:
|
|
/* end of list */
|
|
done = True;
|
|
break;
|
|
default:
|
|
/* bad attribute */
|
|
generate_error(dpy, BadValue, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* check contextFlags */
|
|
if (contextFlags & ~contextFlagsAll) {
|
|
generate_error(dpy, BadValue, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
|
|
/* check profileMask */
|
|
if (profileMask != GLX_CONTEXT_CORE_PROFILE_BIT_ARB &&
|
|
profileMask != GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB &&
|
|
profileMask != GLX_CONTEXT_ES_PROFILE_BIT_EXT) {
|
|
generate_error(dpy, GLXBadProfileARB, 0, X_GLXCreateContextAttribsARB, False);
|
|
return NULL;
|
|
}
|
|
|
|
/* check renderType */
|
|
if (renderType != GLX_RGBA_TYPE &&
|
|
renderType != GLX_COLOR_INDEX_TYPE) {
|
|
generate_error(dpy, BadValue, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
|
|
/* check version */
|
|
if (majorVersion <= 0 ||
|
|
minorVersion < 0 ||
|
|
(profileMask != GLX_CONTEXT_ES_PROFILE_BIT_EXT &&
|
|
((majorVersion == 1 && minorVersion > 5) ||
|
|
(majorVersion == 2 && minorVersion > 1) ||
|
|
(majorVersion == 3 && minorVersion > 3) ||
|
|
(majorVersion == 4 && minorVersion > 5) ||
|
|
majorVersion > 4))) {
|
|
generate_error(dpy, BadMatch, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
if (profileMask == GLX_CONTEXT_ES_PROFILE_BIT_EXT &&
|
|
((majorVersion == 1 && minorVersion > 1) ||
|
|
(majorVersion == 2 && minorVersion > 0) ||
|
|
(majorVersion == 3 && minorVersion > 1) ||
|
|
majorVersion > 3)) {
|
|
/* GLX_EXT_create_context_es2_profile says nothing to justifying a
|
|
* different error code for invalid ES versions, but this is what NVIDIA
|
|
* does and piglit expects.
|
|
*/
|
|
generate_error(dpy, GLXBadProfileARB, 0, X_GLXCreateContextAttribsARB, False);
|
|
return NULL;
|
|
}
|
|
|
|
if ((contextFlags & GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB) &&
|
|
majorVersion < 3) {
|
|
generate_error(dpy, BadMatch, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
|
|
if (renderType == GLX_COLOR_INDEX_TYPE && majorVersion >= 3) {
|
|
generate_error(dpy, BadMatch, 0, X_GLXCreateContextAttribsARB, True);
|
|
return NULL;
|
|
}
|
|
|
|
ctx = create_context(dpy, xmvis,
|
|
shareCtx ? shareCtx->xmesaContext : NULL,
|
|
direct,
|
|
majorVersion, minorVersion,
|
|
profileMask, contextFlags);
|
|
if (!ctx) {
|
|
generate_error(dpy, GLXBadFBConfig, 0, X_GLXCreateContextAttribsARB, False);
|
|
}
|
|
|
|
return ctx;
|
|
}
|