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IABSD.fr/xenocara/lib/xcb-util-renderutil/renderutil/util.c
matthieu
- lib/xcb-util-renderutil/renderutil/util.c
-
/* Copyright © 2000 Keith Packard * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Keith Packard not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Keith Packard makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "xcb_renderutil.h" xcb_render_pictvisual_t * xcb_render_util_find_visual_format (const xcb_render_query_pict_formats_reply_t *formats, const xcb_visualid_t visual) { xcb_render_pictscreen_iterator_t screens; xcb_render_pictdepth_iterator_t depths; xcb_render_pictvisual_iterator_t visuals; if (!formats) return 0; for (screens = xcb_render_query_pict_formats_screens_iterator(formats); screens.rem; xcb_render_pictscreen_next(&screens)) for (depths = xcb_render_pictscreen_depths_iterator(screens.data); depths.rem; xcb_render_pictdepth_next(&depths)) for (visuals = xcb_render_pictdepth_visuals_iterator(depths.data); visuals.rem; xcb_render_pictvisual_next(&visuals)) if (visuals.data->visual == visual) return visuals.data; return 0; } xcb_render_pictforminfo_t * xcb_render_util_find_format (const xcb_render_query_pict_formats_reply_t *formats, unsigned long mask, const xcb_render_pictforminfo_t *ptemplate, int count) { xcb_render_pictforminfo_iterator_t i; if (!formats) return 0; for (i = xcb_render_query_pict_formats_formats_iterator(formats); i.rem; xcb_render_pictforminfo_next(&i)) { if (mask & XCB_PICT_FORMAT_ID) if (ptemplate->id != i.data->id) continue; if (mask & XCB_PICT_FORMAT_TYPE) if (ptemplate->type != i.data->type) continue; if (mask & XCB_PICT_FORMAT_DEPTH) if (ptemplate->depth != i.data->depth) continue; if (mask & XCB_PICT_FORMAT_RED) if (ptemplate->direct.red_shift != i.data->direct.red_shift) continue; if (mask & XCB_PICT_FORMAT_RED_MASK) if (ptemplate->direct.red_mask != i.data->direct.red_mask) continue; if (mask & XCB_PICT_FORMAT_GREEN) if (ptemplate->direct.green_shift != i.data->direct.green_shift) continue; if (mask & XCB_PICT_FORMAT_GREEN_MASK) if (ptemplate->direct.green_mask != i.data->direct.green_mask) continue; if (mask & XCB_PICT_FORMAT_BLUE) if (ptemplate->direct.blue_shift != i.data->direct.blue_shift) continue; if (mask & XCB_PICT_FORMAT_BLUE_MASK) if (ptemplate->direct.blue_mask != i.data->direct.blue_mask) continue; if (mask & XCB_PICT_FORMAT_ALPHA) if (ptemplate->direct.alpha_shift != i.data->direct.alpha_shift) continue; if (mask & XCB_PICT_FORMAT_ALPHA_MASK) if (ptemplate->direct.alpha_mask != i.data->direct.alpha_mask) continue; if (mask & XCB_PICT_FORMAT_COLORMAP) if (ptemplate->colormap != i.data->colormap) continue; if (count-- == 0) return i.data; } return 0; } xcb_render_pictforminfo_t * xcb_render_util_find_standard_format (const xcb_render_query_pict_formats_reply_t *formats, xcb_pict_standard_t format) { static const struct { xcb_render_pictforminfo_t templ; unsigned long mask; } standardFormats[] = { /* XCB_PICT_STANDARD_ARGB_32 */ { { 0, /* id */ XCB_RENDER_PICT_TYPE_DIRECT, /* type */ 32, /* depth */ { 0 }, /* pad */ { /* direct */ 16, /* direct.red */ 0xff, /* direct.red_mask */ 8, /* direct.green */ 0xff, /* direct.green_mask */ 0, /* direct.blue */ 0xff, /* direct.blue_mask */ 24, /* direct.alpha */ 0xff, /* direct.alpha_mask */ }, 0, /* colormap */ }, XCB_PICT_FORMAT_TYPE | XCB_PICT_FORMAT_DEPTH | XCB_PICT_FORMAT_RED | XCB_PICT_FORMAT_RED_MASK | XCB_PICT_FORMAT_GREEN | XCB_PICT_FORMAT_GREEN_MASK | XCB_PICT_FORMAT_BLUE | XCB_PICT_FORMAT_BLUE_MASK | XCB_PICT_FORMAT_ALPHA | XCB_PICT_FORMAT_ALPHA_MASK, }, /* XCB_PICT_STANDARD_RGB_24 */ { { 0, /* id */ XCB_RENDER_PICT_TYPE_DIRECT, /* type */ 24, /* depth */ { 0 }, /* pad */ { /* direct */ 16, /* direct.red */ 0xff, /* direct.red_MASK */ 8, /* direct.green */ 0xff, /* direct.green_MASK */ 0, /* direct.blue */ 0xff, /* direct.blue_MASK */ 0, /* direct.alpha */ 0x00, /* direct.alpha_MASK */ }, 0, /* colormap */ }, XCB_PICT_FORMAT_TYPE | XCB_PICT_FORMAT_DEPTH | XCB_PICT_FORMAT_RED | XCB_PICT_FORMAT_RED_MASK | XCB_PICT_FORMAT_GREEN | XCB_PICT_FORMAT_GREEN_MASK | XCB_PICT_FORMAT_BLUE | XCB_PICT_FORMAT_BLUE_MASK | XCB_PICT_FORMAT_ALPHA_MASK, }, /* XCB_PICT_STANDARD_A_8 */ { { 0, /* id */ XCB_RENDER_PICT_TYPE_DIRECT, /* type */ 8, /* depth */ { 0 }, /* pad */ { /* direct */ 0, /* direct.red */ 0x00, /* direct.red_MASK */ 0, /* direct.green */ 0x00, /* direct.green_MASK */ 0, /* direct.blue */ 0x00, /* direct.blue_MASK */ 0, /* direct.alpha */ 0xff, /* direct.alpha_MASK */ }, 0, /* colormap */ }, XCB_PICT_FORMAT_TYPE | XCB_PICT_FORMAT_DEPTH | XCB_PICT_FORMAT_RED_MASK | XCB_PICT_FORMAT_GREEN_MASK | XCB_PICT_FORMAT_BLUE_MASK | XCB_PICT_FORMAT_ALPHA | XCB_PICT_FORMAT_ALPHA_MASK, }, /* XCB_PICT_STANDARD_A_4 */ { { 0, /* id */ XCB_RENDER_PICT_TYPE_DIRECT, /* type */ 4, /* depth */ { 0 }, /* pad */ { /* direct */ 0, /* direct.red */ 0x00, /* direct.red_MASK */ 0, /* direct.green */ 0x00, /* direct.green_MASK */ 0, /* direct.blue */ 0x00, /* direct.blue_MASK */ 0, /* direct.alpha */ 0x0f, /* direct.alpha_MASK */ }, 0, /* colormap */ }, XCB_PICT_FORMAT_TYPE | XCB_PICT_FORMAT_DEPTH | XCB_PICT_FORMAT_RED_MASK | XCB_PICT_FORMAT_GREEN_MASK | XCB_PICT_FORMAT_BLUE_MASK | XCB_PICT_FORMAT_ALPHA | XCB_PICT_FORMAT_ALPHA_MASK, }, /* XCB_PICT_STANDARD_A_1 */ { { 0, /* id */ XCB_RENDER_PICT_TYPE_DIRECT, /* type */ 1, /* depth */ { 0 }, /* pad */ { /* direct */ 0, /* direct.red */ 0x00, /* direct.red_MASK */ 0, /* direct.green */ 0x00, /* direct.green_MASK */ 0, /* direct.blue */ 0x00, /* direct.blue_MASK */ 0, /* direct.alpha */ 0x01, /* direct.alpha_MASK */ }, 0, /* colormap */ }, XCB_PICT_FORMAT_TYPE | XCB_PICT_FORMAT_DEPTH | XCB_PICT_FORMAT_RED_MASK | XCB_PICT_FORMAT_GREEN_MASK | XCB_PICT_FORMAT_BLUE_MASK | XCB_PICT_FORMAT_ALPHA | XCB_PICT_FORMAT_ALPHA_MASK, }, }; if (format < 0 || format >= sizeof(standardFormats) / sizeof(*standardFormats)) return 0; return xcb_render_util_find_format (formats, standardFormats[format].mask, &standardFormats[format].templ, 0); }