diff options
Diffstat (limited to 'src/egl/main/eglconfig.c')
| -rw-r--r-- | src/egl/main/eglconfig.c | 115 |
1 files changed, 91 insertions, 24 deletions
diff --git a/src/egl/main/eglconfig.c b/src/egl/main/eglconfig.c index 5b377b7f610..483d9807cf0 100644 --- a/src/egl/main/eglconfig.c +++ b/src/egl/main/eglconfig.c @@ -1,3 +1,33 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright 2009-2010 Chia-I Wu <[email protected]> + * Copyright 2010-2011 LunarG, Inc. + * 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 the rights to use, copy, modify, merge, publish, + * distribute, sub license, 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + * + **************************************************************************/ + + /** * EGL Configuration (pixel format) functions. */ @@ -305,6 +335,7 @@ _eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching) break; default: assert(0); + mask = 0; break; } if (val & ~mask) @@ -456,8 +487,6 @@ _eglIsConfigAttribValid(_EGLConfig *conf, EGLint attr) return EGL_FALSE; switch (attr) { - case EGL_MATCH_NATIVE_PIXMAP: - return EGL_FALSE; case EGL_Y_INVERTED_NOK: return conf->Display->Extensions.NOK_texture_from_pixmap; default: @@ -634,7 +663,7 @@ void _eglSwapConfigs(const _EGLConfig **conf1, const _EGLConfig **conf2) * qsort() in that the compare function accepts an additional * argument. */ -void +static void _eglSortConfigs(const _EGLConfig **configs, EGLint count, EGLint (*compare)(const _EGLConfig *, const _EGLConfig *, void *), @@ -672,34 +701,27 @@ _eglSortConfigs(const _EGLConfig **configs, EGLint count, } -static int -_eglFallbackCompare(const _EGLConfig *conf1, const _EGLConfig *conf2, - void *priv_data) -{ - const _EGLConfig *criteria = (const _EGLConfig *) priv_data; - return _eglCompareConfigs(conf1, conf2, criteria, EGL_TRUE); -} - - /** - * Typical fallback routine for eglChooseConfig + * A helper function for implementing eglChooseConfig. See _eglFilterArray and + * _eglSortConfigs for the meanings of match and compare. */ EGLBoolean -_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list, - EGLConfig *configs, EGLint config_size, EGLint *num_configs) +_eglFilterConfigArray(_EGLArray *array, EGLConfig *configs, + EGLint config_size, EGLint *num_configs, + EGLBoolean (*match)(const _EGLConfig *, void *), + EGLint (*compare)(const _EGLConfig *, const _EGLConfig *, + void *), + void *priv_data) { - _EGLConfig **configList, criteria; + _EGLConfig **configList; EGLint i, count; if (!num_configs) return _eglError(EGL_BAD_PARAMETER, "eglChooseConfigs"); - if (!_eglParseConfigAttribList(&criteria, disp, attrib_list)) - return _eglError(EGL_BAD_ATTRIBUTE, "eglChooseConfig"); - /* get the number of matched configs */ - count = _eglFilterArray(disp->Configs, NULL, 0, - (_EGLArrayForEach) _eglMatchConfig, (void *) &criteria); + count = _eglFilterArray(array, NULL, 0, + (_EGLArrayForEach) match, priv_data); if (!count) { *num_configs = count; return EGL_TRUE; @@ -710,13 +732,13 @@ _eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list, return _eglError(EGL_BAD_ALLOC, "eglChooseConfig(out of memory)"); /* get the matched configs */ - _eglFilterArray(disp->Configs, (void **) configList, count, - (_EGLArrayForEach) _eglMatchConfig, (void *) &criteria); + _eglFilterArray(array, (void **) configList, count, + (_EGLArrayForEach) match, priv_data); /* perform sorting of configs */ if (configs && count) { _eglSortConfigs((const _EGLConfig **) configList, count, - _eglFallbackCompare, (void *) &criteria); + compare, priv_data); count = MIN2(count, config_size); for (i = 0; i < count; i++) configs[i] = _eglGetConfigHandle(configList[i]); @@ -730,6 +752,41 @@ _eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list, } +static EGLBoolean +_eglFallbackMatch(const _EGLConfig *conf, void *priv_data) +{ + return _eglMatchConfig(conf, (const _EGLConfig *) priv_data); +} + + +static EGLint +_eglFallbackCompare(const _EGLConfig *conf1, const _EGLConfig *conf2, + void *priv_data) +{ + return _eglCompareConfigs(conf1, conf2, + (const _EGLConfig *) priv_data, EGL_TRUE); +} + + +/** + * Typical fallback routine for eglChooseConfig + */ +EGLBoolean +_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *disp, const EGLint *attrib_list, + EGLConfig *configs, EGLint config_size, EGLint *num_configs) +{ + _EGLConfig criteria; + + if (!_eglParseConfigAttribList(&criteria, disp, attrib_list)) + return _eglError(EGL_BAD_ATTRIBUTE, "eglChooseConfig"); + + return _eglFilterConfigArray(disp->Configs, + configs, config_size, num_configs, + _eglFallbackMatch, _eglFallbackCompare, + (void *) &criteria); +} + + /** * Fallback for eglGetConfigAttrib. */ @@ -739,6 +796,16 @@ _eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, { if (!_eglIsConfigAttribValid(conf, attribute)) return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib"); + + /* nonqueryable attributes */ + switch (attribute) { + case EGL_MATCH_NATIVE_PIXMAP: + return _eglError(EGL_BAD_ATTRIBUTE, "eglGetConfigAttrib"); + break; + default: + break; + } + if (!value) return _eglError(EGL_BAD_PARAMETER, "eglGetConfigAttrib"); |