| 1 | /* |
| 2 | * Copyright 2002-2004 Red Hat Inc., Durham, North Carolina. |
| 3 | * |
| 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining |
| 7 | * a copy of this software and associated documentation files (the |
| 8 | * "Software"), to deal in the Software without restriction, including |
| 9 | * without limitation on the rights to use, copy, modify, merge, |
| 10 | * publish, distribute, sublicense, and/or sell copies of the Software, |
| 11 | * and to permit persons to whom the Software is furnished to do so, |
| 12 | * subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice (including the |
| 15 | * next paragraph) shall be included in all copies or substantial |
| 16 | * portions of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS |
| 22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 25 | * SOFTWARE. |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * Authors: |
| 30 | * Kevin E. Martin <kem@redhat.com> |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | /** \file |
| 35 | * This file provides support for visuals. */ |
| 36 | |
| 37 | #ifdef HAVE_DMX_CONFIG_H |
| 38 | #include <dmx-config.h> |
| 39 | #endif |
| 40 | |
| 41 | #include "dmx.h" |
| 42 | #include "dmxvisual.h" |
| 43 | |
| 44 | #include "scrnintstr.h" |
| 45 | |
| 46 | #ifdef GLXEXT |
| 47 | |
| 48 | #include <GL/glxint.h> |
| 49 | |
| 50 | extern VisualID glxMatchVisualInConfigList(ScreenPtr pScreen, |
| 51 | VisualPtr pVisual, |
| 52 | __GLXvisualConfig * configs, |
| 53 | int nconfigs); |
| 54 | |
| 55 | static Visual * |
| 56 | dmxLookupGLXVisual(ScreenPtr pScreen, VisualPtr pVisual) |
| 57 | { |
| 58 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; |
| 59 | int j; |
| 60 | VisualID vid; |
| 61 | |
| 62 | vid = glxMatchVisualInConfigList(pScreen, pVisual, |
| 63 | dmxScreen->glxVisuals, |
| 64 | dmxScreen->numGlxVisuals); |
| 65 | if (vid) { |
| 66 | /* Find the X visual of the matching GLX visual */ |
| 67 | for (j = 0; j < dmxScreen->beNumVisuals; j++) |
| 68 | if (vid == dmxScreen->beVisuals[j].visualid) |
| 69 | return dmxScreen->beVisuals[j].visual; |
| 70 | } |
| 71 | |
| 72 | /* No matching visual found */ |
| 73 | return NULL; |
| 74 | } |
| 75 | #endif |
| 76 | |
| 77 | /** Return the visual that matched \a pVisual. */ |
| 78 | Visual * |
| 79 | dmxLookupVisual(ScreenPtr pScreen, VisualPtr pVisual) |
| 80 | { |
| 81 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; |
| 82 | int i; |
| 83 | |
| 84 | #ifdef GLXEXT |
| 85 | Visual *retval; |
| 86 | #endif |
| 87 | |
| 88 | if (!dmxScreen->beDisplay) |
| 89 | return NULL; |
| 90 | |
| 91 | #ifdef GLXEXT |
| 92 | if ((retval = dmxLookupGLXVisual(pScreen, pVisual))) |
| 93 | return retval; |
| 94 | #endif |
| 95 | |
| 96 | for (i = 0; i < dmxScreen->beNumVisuals; i++) { |
| 97 | if (pVisual->class == dmxScreen->beVisuals[i].class && |
| 98 | pVisual->bitsPerRGBValue == dmxScreen->beVisuals[i].bits_per_rgb && |
| 99 | pVisual->ColormapEntries == dmxScreen->beVisuals[i].colormap_size && |
| 100 | pVisual->nplanes == dmxScreen->beVisuals[i].depth && |
| 101 | pVisual->redMask == dmxScreen->beVisuals[i].red_mask && |
| 102 | pVisual->greenMask == dmxScreen->beVisuals[i].green_mask && |
| 103 | pVisual->blueMask == dmxScreen->beVisuals[i].blue_mask) { |
| 104 | return dmxScreen->beVisuals[i].visual; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | return NULL; |
| 109 | } |
| 110 | |
| 111 | /** Return the visual that matched the \a vid. */ |
| 112 | Visual * |
| 113 | dmxLookupVisualFromID(ScreenPtr pScreen, VisualID vid) |
| 114 | { |
| 115 | Visual *visual; |
| 116 | int i; |
| 117 | |
| 118 | if (!dmxScreens[pScreen->myNum].beDisplay) |
| 119 | return NULL; |
| 120 | |
| 121 | for (i = 0; i < pScreen->numVisuals; i++) { |
| 122 | if (pScreen->visuals[i].vid == vid) { |
| 123 | visual = dmxLookupVisual(pScreen, &pScreen->visuals[i]); |
| 124 | if (visual) |
| 125 | return visual; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | return NULL; |
| 130 | } |
| 131 | |
| 132 | /** Return the colormap for the \a visual. */ |
| 133 | Colormap |
| 134 | dmxColormapFromDefaultVisual(ScreenPtr pScreen, Visual * visual) |
| 135 | { |
| 136 | DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum]; |
| 137 | int i; |
| 138 | |
| 139 | if (dmxScreen->beDisplay) { |
| 140 | for (i = 0; i < dmxScreen->beNumDefColormaps; i++) |
| 141 | if (visual == dmxScreen->beVisuals[i].visual) |
| 142 | return dmxScreen->beDefColormaps[i]; |
| 143 | } |
| 144 | |
| 145 | return None; |
| 146 | } |