519 lines
16 KiB
C
519 lines
16 KiB
C
/*
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* Copyright © 2006 Red Hat, Inc.
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* (C) Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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* 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, sub license,
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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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* RED HAT, INC, OR PRECISION INSIGHT AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
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* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Authors:
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* Kevin E. Martin <kevin@precisioninsight.com>
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* Brian Paul <brian@precisioninsight.com>
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* Kristian Høgsberg <krh@redhat.com>
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <assert.h>
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#include <string.h>
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#include <regionstr.h>
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#include <resource.h>
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#include <GL/gl.h>
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#include <GL/glxint.h>
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#include <GL/glxtokens.h>
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#include <GL/internal/glcore.h>
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#include <scrnintstr.h>
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#include <config.h>
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#include <glxserver.h>
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#include <glxscreens.h>
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#include <glxdrawable.h>
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#include <glxcontext.h>
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#include <glxext.h>
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#include <glxutil.h>
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#include <micmap.h>
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void GlxWrapInitVisuals(miInitVisualsProcPtr *);
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#include "glcontextmodes.h"
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struct ScreenVisualsRec {
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int num_vis;
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void *private;
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__GLcontextModes *modes;
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};
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typedef struct ScreenVisualsRec ScreenVisuals;
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static ScreenVisuals screenVisuals[MAXSCREENS];
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static int numConfigs = 0;
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static __GLXvisualConfig *visualConfigs = NULL;
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static void **visualPrivates = NULL;
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static int count_bits(unsigned int n)
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{
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int bits = 0;
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while (n > 0) {
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if (n & 1) bits++;
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n >>= 1;
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}
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return bits;
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}
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/*
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* In the case the driver defines no GLX visuals we'll use these.
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* Note that for TrueColor and DirectColor visuals, bufferSize is the
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* sum of redSize, greenSize, blueSize and alphaSize, which may be larger
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* than the nplanes/rootDepth of the server's X11 visuals
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*/
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#define NUM_FALLBACK_CONFIGS 5
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static __GLXvisualConfig FallbackConfigs[NUM_FALLBACK_CONFIGS] = {
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/* [0] = RGB, double buffered, Z */
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{
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-1, /* vid */
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-1, /* class */
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True, /* rgba */
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-1, -1, -1, 0, /* rgba sizes */
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-1, -1, -1, 0, /* rgba masks */
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0, 0, 0, 0, /* rgba accum sizes */
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True, /* doubleBuffer */
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False, /* stereo */
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-1, /* bufferSize */
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16, /* depthSize */
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0, /* stencilSize */
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0, /* auxBuffers */
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0, /* level */
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GLX_NONE, /* visualRating */
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GLX_NONE, /* transparentPixel */
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0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
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0 /* transparentIndex */
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},
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/* [1] = RGB, double buffered, Z, stencil, accum */
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{
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-1, /* vid */
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-1, /* class */
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True, /* rgba */
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-1, -1, -1, 0, /* rgba sizes */
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-1, -1, -1, 0, /* rgba masks */
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16, 16, 16, 0, /* rgba accum sizes */
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True, /* doubleBuffer */
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False, /* stereo */
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-1, /* bufferSize */
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16, /* depthSize */
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8, /* stencilSize */
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0, /* auxBuffers */
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0, /* level */
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GLX_NONE, /* visualRating */
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GLX_NONE, /* transparentPixel */
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0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
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0 /* transparentIndex */
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},
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/* [2] = RGB+Alpha, double buffered, Z, stencil, accum */
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{
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-1, /* vid */
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-1, /* class */
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True, /* rgba */
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-1, -1, -1, 8, /* rgba sizes */
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-1, -1, -1, -1, /* rgba masks */
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16, 16, 16, 16, /* rgba accum sizes */
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True, /* doubleBuffer */
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False, /* stereo */
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-1, /* bufferSize */
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16, /* depthSize */
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8, /* stencilSize */
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0, /* auxBuffers */
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0, /* level */
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GLX_NONE, /* visualRating */
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GLX_NONE, /* transparentPixel */
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0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
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0 /* transparentIndex */
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},
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/* [3] = RGB+Alpha, single buffered, Z, stencil, accum */
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{
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-1, /* vid */
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-1, /* class */
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True, /* rgba */
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-1, -1, -1, 8, /* rgba sizes */
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-1, -1, -1, -1, /* rgba masks */
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16, 16, 16, 16, /* rgba accum sizes */
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False, /* doubleBuffer */
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False, /* stereo */
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-1, /* bufferSize */
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16, /* depthSize */
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8, /* stencilSize */
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0, /* auxBuffers */
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0, /* level */
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GLX_NONE, /* visualRating */
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GLX_NONE, /* transparentPixel */
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0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
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0 /* transparentIndex */
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},
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/* [4] = CI, double buffered, Z */
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{
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-1, /* vid */
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-1, /* class */
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False, /* rgba? (false = color index) */
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-1, -1, -1, 0, /* rgba sizes */
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-1, -1, -1, 0, /* rgba masks */
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0, 0, 0, 0, /* rgba accum sizes */
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True, /* doubleBuffer */
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False, /* stereo */
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-1, /* bufferSize */
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16, /* depthSize */
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0, /* stencilSize */
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0, /* auxBuffers */
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0, /* level */
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GLX_NONE, /* visualRating */
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GLX_NONE, /* transparentPixel */
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0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
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0 /* transparentIndex */
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},
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};
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static Bool init_visuals(int *nvisualp, VisualPtr *visualp,
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VisualID *defaultVisp,
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int ndepth, DepthPtr pdepth,
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int rootDepth)
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{
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int numRGBconfigs;
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int numCIconfigs;
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int numVisuals = *nvisualp;
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int numNewVisuals;
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int numNewConfigs;
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VisualPtr pVisual = *visualp;
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VisualPtr pVisualNew = NULL;
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VisualID *orig_vid = NULL;
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__GLcontextModes *modes;
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__GLXvisualConfig *pNewVisualConfigs = NULL;
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void **glXVisualPriv;
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void **pNewVisualPriv;
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int found_default;
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int i, j, k;
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if (numConfigs > 0)
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numNewConfigs = numConfigs;
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else
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numNewConfigs = NUM_FALLBACK_CONFIGS;
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/* Alloc space for the list of new GLX visuals */
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pNewVisualConfigs = (__GLXvisualConfig *)
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xalloc(numNewConfigs * sizeof(__GLXvisualConfig));
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if (!pNewVisualConfigs) {
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return FALSE;
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}
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/* Alloc space for the list of new GLX visual privates */
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pNewVisualPriv = (void **) xalloc(numNewConfigs * sizeof(void *));
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if (!pNewVisualPriv) {
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xfree(pNewVisualConfigs);
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return FALSE;
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}
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/*
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** If SetVisualConfigs was not called, then use default GLX
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** visual configs.
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*/
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if (numConfigs == 0) {
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memcpy(pNewVisualConfigs, FallbackConfigs,
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NUM_FALLBACK_CONFIGS * sizeof(__GLXvisualConfig));
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memset(pNewVisualPriv, 0, NUM_FALLBACK_CONFIGS * sizeof(void *));
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}
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else {
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/* copy driver's visual config info */
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for (i = 0; i < numConfigs; i++) {
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pNewVisualConfigs[i] = visualConfigs[i];
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pNewVisualPriv[i] = visualPrivates[i];
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}
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}
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/* Count the number of RGB and CI visual configs */
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numRGBconfigs = 0;
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numCIconfigs = 0;
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for (i = 0; i < numNewConfigs; i++) {
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if (pNewVisualConfigs[i].rgba)
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numRGBconfigs++;
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else
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numCIconfigs++;
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}
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/* Count the total number of visuals to compute */
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numNewVisuals = 0;
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for (i = 0; i < numVisuals; i++) {
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numNewVisuals +=
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(pVisual[i].class == TrueColor || pVisual[i].class == DirectColor)
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? numRGBconfigs : numCIconfigs;
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}
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/* Reset variables for use with the next screen/driver's visual configs */
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visualConfigs = NULL;
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numConfigs = 0;
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/* Alloc temp space for the list of orig VisualIDs for each new visual */
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orig_vid = (VisualID *) xalloc(numNewVisuals * sizeof(VisualID));
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if (!orig_vid) {
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xfree(pNewVisualPriv);
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xfree(pNewVisualConfigs);
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return FALSE;
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}
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/* Alloc space for the list of glXVisuals */
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modes = _gl_context_modes_create(numNewVisuals, sizeof(__GLcontextModes));
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if (modes == NULL) {
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xfree(orig_vid);
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xfree(pNewVisualPriv);
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xfree(pNewVisualConfigs);
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return FALSE;
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}
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/* Alloc space for the list of glXVisualPrivates */
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glXVisualPriv = (void **)xalloc(numNewVisuals * sizeof(void *));
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if (!glXVisualPriv) {
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_gl_context_modes_destroy( modes );
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xfree(orig_vid);
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xfree(pNewVisualPriv);
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xfree(pNewVisualConfigs);
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return FALSE;
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}
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/* Alloc space for the new list of the X server's visuals */
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pVisualNew = (VisualPtr)xalloc(numNewVisuals * sizeof(VisualRec));
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if (!pVisualNew) {
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xfree(glXVisualPriv);
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_gl_context_modes_destroy( modes );
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xfree(orig_vid);
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xfree(pNewVisualPriv);
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xfree(pNewVisualConfigs);
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return FALSE;
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}
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/* Initialize the new visuals */
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found_default = FALSE;
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screenVisuals[screenInfo.numScreens-1].modes = modes;
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for (i = j = 0; i < numVisuals; i++) {
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int is_rgb = (pVisual[i].class == TrueColor ||
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pVisual[i].class == DirectColor);
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for (k = 0; k < numNewConfigs; k++) {
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if (pNewVisualConfigs[k].rgba != is_rgb)
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continue;
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assert( modes != NULL );
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/* Initialize the new visual */
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pVisualNew[j] = pVisual[i];
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pVisualNew[j].vid = FakeClientID(0);
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/* Check for the default visual */
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if (!found_default && pVisual[i].vid == *defaultVisp) {
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*defaultVisp = pVisualNew[j].vid;
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found_default = TRUE;
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}
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/* Save the old VisualID */
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orig_vid[j] = pVisual[i].vid;
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/* Initialize the glXVisual */
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_gl_copy_visual_to_context_mode( modes, & pNewVisualConfigs[k] );
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modes->visualID = pVisualNew[j].vid;
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if (modes->fbconfigID == GLX_DONT_CARE)
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modes->fbconfigID = modes->visualID;
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/*
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* If the class is -1, then assume the X visual information
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* is identical to what GLX needs, and take them from the X
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* visual. NOTE: if class != -1, then all other fields MUST
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* be initialized.
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*/
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if (modes->visualType == GLX_NONE) {
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modes->visualType = _gl_convert_from_x_visual_type( pVisual[i].class );
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modes->redBits = count_bits(pVisual[i].redMask);
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modes->greenBits = count_bits(pVisual[i].greenMask);
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modes->blueBits = count_bits(pVisual[i].blueMask);
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modes->alphaBits = modes->alphaBits;
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modes->redMask = pVisual[i].redMask;
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modes->greenMask = pVisual[i].greenMask;
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modes->blueMask = pVisual[i].blueMask;
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modes->alphaMask = modes->alphaMask;
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modes->rgbBits = (is_rgb)
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? (modes->redBits + modes->greenBits +
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modes->blueBits + modes->alphaBits)
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: rootDepth;
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}
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/* Save the device-dependent private for this visual */
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glXVisualPriv[j] = pNewVisualPriv[k];
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j++;
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modes = modes->next;
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}
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}
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assert(j <= numNewVisuals);
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/* Save the GLX visuals in the screen structure */
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screenVisuals[screenInfo.numScreens-1].num_vis = numNewVisuals;
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screenVisuals[screenInfo.numScreens-1].private = glXVisualPriv;
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/* Set up depth's VisualIDs */
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for (i = 0; i < ndepth; i++) {
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int numVids = 0;
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VisualID *pVids = NULL;
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int k, n = 0;
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/* Count the new number of VisualIDs at this depth */
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for (j = 0; j < pdepth[i].numVids; j++)
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for (k = 0; k < numNewVisuals; k++)
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if (pdepth[i].vids[j] == orig_vid[k])
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numVids++;
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/* Allocate a new list of VisualIDs for this depth */
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pVids = (VisualID *)xalloc(numVids * sizeof(VisualID));
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/* Initialize the new list of VisualIDs for this depth */
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for (j = 0; j < pdepth[i].numVids; j++)
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for (k = 0; k < numNewVisuals; k++)
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if (pdepth[i].vids[j] == orig_vid[k])
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pVids[n++] = pVisualNew[k].vid;
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/* Update this depth's list of VisualIDs */
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xfree(pdepth[i].vids);
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pdepth[i].vids = pVids;
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pdepth[i].numVids = numVids;
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}
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/* Update the X server's visuals */
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*nvisualp = numNewVisuals;
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*visualp = pVisualNew;
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/* Free the old list of the X server's visuals */
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xfree(pVisual);
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/* Clean up temporary allocations */
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xfree(orig_vid);
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xfree(pNewVisualPriv);
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xfree(pNewVisualConfigs);
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/* Free the private list created by DDX HW driver */
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if (visualPrivates)
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xfree(visualPrivates);
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visualPrivates = NULL;
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return TRUE;
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}
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void GlxSetVisualConfigs(int nconfigs,
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__GLXvisualConfig *configs, void **privates)
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{
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numConfigs = nconfigs;
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visualConfigs = configs;
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visualPrivates = privates;
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}
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static miInitVisualsProcPtr saveInitVisualsProc;
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Bool GlxInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
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int *nvisualp, int *ndepthp,
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int *rootDepthp, VisualID *defaultVisp,
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unsigned long sizes, int bitsPerRGB,
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int preferredVis)
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{
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Bool ret;
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if (saveInitVisualsProc) {
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ret = saveInitVisualsProc(visualp, depthp, nvisualp, ndepthp,
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rootDepthp, defaultVisp, sizes, bitsPerRGB,
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preferredVis);
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if (!ret)
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return False;
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}
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/*
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* Setup the visuals supported by this particular screen.
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*/
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init_visuals(nvisualp, visualp, defaultVisp,
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*ndepthp, *depthp, *rootDepthp);
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return True;
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}
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/************************************************************************/
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void
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GlxWrapInitVisuals(miInitVisualsProcPtr *initVisProc)
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{
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saveInitVisualsProc = *initVisProc;
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*initVisProc = GlxInitVisuals;
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}
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static void fixup_visuals(int screen)
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{
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ScreenPtr pScreen = screenInfo.screens[screen];
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ScreenVisuals *psv = &screenVisuals[screen];
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int j;
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__GLcontextModes *modes;
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for ( modes = psv->modes ; modes != NULL ; modes = modes->next ) {
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const int vis_class = _gl_convert_to_x_visual_type( modes->visualType );
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const int nplanes = (modes->rgbBits - modes->alphaBits);
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const VisualPtr pVis = pScreen->visuals;
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/* Find a visual that matches the GLX visual's class and size */
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for (j = 0; j < pScreen->numVisuals; j++) {
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if (pVis[j].class == vis_class &&
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pVis[j].nplanes == nplanes) {
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/* Fixup the masks */
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modes->redMask = pVis[j].redMask;
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modes->greenMask = pVis[j].greenMask;
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modes->blueMask = pVis[j].blueMask;
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/* Recalc the sizes */
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modes->redBits = count_bits(modes->redMask);
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modes->greenBits = count_bits(modes->greenMask);
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modes->blueBits = count_bits(modes->blueMask);
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}
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}
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}
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}
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void __glXScreenInitVisuals(__GLXscreen *screen)
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{
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int index = screen->pScreen->myNum;
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screen->modes = screenVisuals[index].modes;
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screen->pVisualPriv = screenVisuals[index].private;
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screen->numVisuals = screenVisuals[index].num_vis;
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screen->numUsableVisuals = screenVisuals[index].num_vis;
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/*
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* The ordering of the rgb compenents might have been changed by the
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* driver after mi initialized them.
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*/
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|
fixup_visuals(index);
|
|
}
|