| 1 | /* |
| 2 | * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
| 3 | * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice including the dates of first publication and |
| 13 | * either this permission notice or a reference to |
| 14 | * http://oss.sgi.com/projects/FreeB/ |
| 15 | * shall be included in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 22 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. |
| 24 | * |
| 25 | * Except as contained in this notice, the name of Silicon Graphics, Inc. |
| 26 | * shall not be used in advertising or otherwise to promote the sale, use or |
| 27 | * other dealings in this Software without prior written authorization from |
| 28 | * Silicon Graphics, Inc. |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_DMX_CONFIG_H |
| 32 | #include <dmx-config.h> |
| 33 | #endif |
| 34 | |
| 35 | #include "glxserver.h" |
| 36 | #include "glxvisuals.h" |
| 37 | |
| 38 | int |
| 39 | glxVisualsMatch(__GLXvisualConfig * v1, __GLXvisualConfig * v2) |
| 40 | { |
| 41 | if ((v1->class == v2->class) && |
| 42 | (v1->rgba == v2->rgba) && |
| 43 | (v1->redSize == v2->redSize) && |
| 44 | (v1->greenSize == v2->greenSize) && |
| 45 | (v1->blueSize == v2->blueSize) && |
| 46 | (v1->alphaSize == v2->alphaSize) && |
| 47 | (v1->redMask == v2->redMask) && |
| 48 | (v1->greenMask == v2->greenMask) && |
| 49 | (v1->blueMask == v2->blueMask) && |
| 50 | (v1->alphaMask == v2->alphaMask) && |
| 51 | (v1->accumRedSize == v2->accumRedSize) && |
| 52 | (v1->accumGreenSize == v2->accumGreenSize) && |
| 53 | (v1->accumBlueSize == v2->accumBlueSize) && |
| 54 | (v1->accumAlphaSize == v2->accumAlphaSize) && |
| 55 | (v1->doubleBuffer == v2->doubleBuffer) && |
| 56 | (v1->stereo == v2->stereo) && |
| 57 | (v1->bufferSize == v2->bufferSize) && |
| 58 | (v1->depthSize == v2->depthSize) && |
| 59 | (v1->stencilSize == v2->stencilSize) && |
| 60 | (v1->auxBuffers == v2->auxBuffers) && |
| 61 | (v1->level == v2->level) && |
| 62 | (v1->visualRating == v2->visualRating) && |
| 63 | (v1->transparentPixel == v2->transparentPixel) && |
| 64 | (v1->transparentRed == v2->transparentRed) && |
| 65 | (v1->transparentGreen == v2->transparentGreen) && |
| 66 | (v1->transparentBlue == v2->transparentBlue) && |
| 67 | (v1->transparentAlpha == v2->transparentAlpha) && |
| 68 | (v1->transparentIndex == v2->transparentIndex) && |
| 69 | (v1->multiSampleSize == v2->multiSampleSize) && |
| 70 | (v1->nMultiSampleBuffers == v2->nMultiSampleBuffers) && |
| 71 | (v1->visualSelectGroup == v2->visualSelectGroup)) { |
| 72 | |
| 73 | return 1; |
| 74 | |
| 75 | } |
| 76 | |
| 77 | return 0; |
| 78 | |
| 79 | } |
| 80 | |
| 81 | VisualID |
| 82 | glxMatchGLXVisualInConfigList(__GLXvisualConfig * pGlxVisual, |
| 83 | __GLXvisualConfig * configs, int nconfigs) |
| 84 | { |
| 85 | int i; |
| 86 | |
| 87 | for (i = 0; i < nconfigs; i++) { |
| 88 | |
| 89 | if (glxVisualsMatch(pGlxVisual, &configs[i])) { |
| 90 | |
| 91 | return configs[i].vid; |
| 92 | |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | VisualID |
| 100 | glxMatchVisualInConfigList(ScreenPtr pScreen, VisualPtr pVisual, |
| 101 | __GLXvisualConfig * configs, int nconfigs) |
| 102 | { |
| 103 | __GLXscreenInfo *pGlxScreen; |
| 104 | __GLXvisualConfig *pGlxVisual; |
| 105 | int i; |
| 106 | |
| 107 | /* check that the glx extension has been initialized */ |
| 108 | if (!__glXActiveScreens) |
| 109 | return 0; |
| 110 | |
| 111 | pGlxScreen = &__glXActiveScreens[pScreen->myNum]; |
| 112 | pGlxVisual = pGlxScreen->pGlxVisual; |
| 113 | |
| 114 | /* find the glx visual info for pVisual */ |
| 115 | for (i = 0; i < pGlxScreen->numVisuals; i++, pGlxVisual++) { |
| 116 | if (pGlxVisual->vid == pVisual->vid) { |
| 117 | break; |
| 118 | } |
| 119 | } |
| 120 | if (i == pGlxScreen->numVisuals) { |
| 121 | /* |
| 122 | * the visual is not supported by glx |
| 123 | */ |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | return (glxMatchGLXVisualInConfigList(pGlxVisual, configs, nconfigs)); |
| 128 | } |
| 129 | |
| 130 | VisualPtr |
| 131 | glxMatchVisual(ScreenPtr pScreen, VisualPtr pVisual, ScreenPtr pMatchScreen) |
| 132 | { |
| 133 | __GLXscreenInfo *pGlxScreen2; |
| 134 | int j; |
| 135 | VisualID vid; |
| 136 | |
| 137 | /* check that the glx extension has been initialized */ |
| 138 | if (!__glXActiveScreens) |
| 139 | return NULL; |
| 140 | |
| 141 | pGlxScreen2 = &__glXActiveScreens[pMatchScreen->myNum]; |
| 142 | |
| 143 | vid = glxMatchVisualInConfigList(pScreen, pVisual, |
| 144 | pGlxScreen2->pGlxVisual, |
| 145 | pGlxScreen2->numVisuals); |
| 146 | if (vid) { |
| 147 | /* |
| 148 | * find the X visual of the matching glx visual |
| 149 | */ |
| 150 | for (j = 0; j < pMatchScreen->numVisuals; j++) { |
| 151 | if (vid == pMatchScreen->visuals[j].vid) { |
| 152 | return &pMatchScreen->visuals[j]; |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | return 0; |
| 158 | } |