aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/dmx/dmxvisual.c
blob: 7b8771f9ebba385e4788d9ac8d9ca584ad2a5a29 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
/*
 * Copyright 2002-2004 Red Hat Inc., Durham, North Carolina.
 *
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation on the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/*
 * Authors:
 *   Kevin E. Martin <kem@redhat.com>
 *
 */

/** \file
 * This file provides support for visuals. */

#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif

#include "dmx.h"
#include "dmxvisual.h"

#include "scrnintstr.h"

#ifdef GLXEXT

#include <GL/glxint.h>

extern VisualID glxMatchVisualInConfigList(ScreenPtr pScreen,
					   VisualPtr pVisual,
					   __GLXvisualConfig *configs,
					   int nconfigs);

static Visual *dmxLookupGLXVisual(ScreenPtr pScreen, VisualPtr pVisual)
{
    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
    int            j;
    VisualID       vid;

    vid = glxMatchVisualInConfigList(pScreen, pVisual,
				     dmxScreen->glxVisuals,
				     dmxScreen->numGlxVisuals);
    if (vid) {
	/* Find the X visual of the matching GLX visual */
	for (j = 0; j < dmxScreen->beNumVisuals; j++)
	    if (vid == dmxScreen->beVisuals[j].visualid)
		return dmxScreen->beVisuals[j].visual;
    }

    /* No matching visual found */
    return NULL;
}
#endif

/** Return the visual that matched \a pVisual. */
Visual *dmxLookupVisual(ScreenPtr pScreen, VisualPtr pVisual)
{
    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
    int            i;
#ifdef GLXEXT
    Visual        *retval;
#endif

    if (!dmxScreen->beDisplay)
	return NULL;

#ifdef GLXEXT
    if ((retval = dmxLookupGLXVisual(pScreen, pVisual)))
	return retval;
#endif

    for (i = 0; i < dmxScreen->beNumVisuals; i++) {
	if (pVisual->class == dmxScreen->beVisuals[i].class &&
	    pVisual->bitsPerRGBValue == dmxScreen->beVisuals[i].bits_per_rgb &&
	    pVisual->ColormapEntries == dmxScreen->beVisuals[i].colormap_size &&
	    pVisual->nplanes == dmxScreen->beVisuals[i].depth &&
	    pVisual->redMask == dmxScreen->beVisuals[i].red_mask &&
	    pVisual->greenMask == dmxScreen->beVisuals[i].green_mask &&
	    pVisual->blueMask == dmxScreen->beVisuals[i].blue_mask) {
	    return dmxScreen->beVisuals[i].visual;
	}
    }

    return NULL;
}

/** Return the visual that matched the \a vid. */
Visual *dmxLookupVisualFromID(ScreenPtr pScreen, VisualID vid)
{
    Visual *visual;
    int     i;

    if (!dmxScreens[pScreen->myNum].beDisplay)
	return NULL;

    for (i = 0; i < pScreen->numVisuals; i++) {
	if (pScreen->visuals[i].vid == vid) {
	    visual = dmxLookupVisual(pScreen, &pScreen->visuals[i]);
	    if (visual) return visual;
	}
    }

    return NULL;
}

/** Return the colormap for the \a visual. */
Colormap dmxColormapFromDefaultVisual(ScreenPtr pScreen, Visual *visual)
{
    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
    int            i;

    if (dmxScreen->beDisplay) {
	for (i = 0; i < dmxScreen->beNumDefColormaps; i++)
	    if (visual == dmxScreen->beVisuals[i].visual)
		return dmxScreen->beDefColormaps[i];
    }

    return None;
}