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      1 /*-------------------------------------------------------------------------
      2  * drawElements Quality Program Tester Core
      3  * ----------------------------------------
      4  *
      5  * Copyright (c) 2016 The Khronos Group Inc.
      6  *
      7  * Licensed under the Apache License, Version 2.0 (the "License");
      8  * you may not use this file except in compliance with the License.
      9  * You may obtain a copy of the License at
     10  *
     11  *      http://www.apache.org/licenses/LICENSE-2.0
     12  *
     13  * Unless required by applicable law or agreed to in writing, software
     14  * distributed under the License is distributed on an "AS IS" BASIS,
     15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16  * See the License for the specific language governing permissions and
     17  * limitations under the License.
     18  *
     19  *//*!
     20  * \file
     21  * \brief X11 using XCB utilities.
     22  *//*--------------------------------------------------------------------*/
     23 
     24 #include "tcuX11Xcb.hpp"
     25 #include "deMemory.h"
     26 
     27 namespace tcu
     28 {
     29 namespace x11
     30 {
     31 
     32 XcbDisplay::XcbDisplay (EventState& platform, const char* name)
     33 	: DisplayBase	(platform)
     34 {
     35 	m_connection						= xcb_connect(name, NULL);
     36 	const xcb_setup_t		*setup		= xcb_get_setup(m_connection);
     37 	xcb_screen_iterator_t	iterator	= xcb_setup_roots_iterator(setup);
     38 	m_screen							= iterator.data;
     39 }
     40 
     41 XcbDisplay::~XcbDisplay (void)
     42 {
     43 	xcb_disconnect (m_connection);
     44 }
     45 
     46 void XcbDisplay::processEvents (void)
     47 {
     48 	xcb_generic_event_t *ev;
     49 	while ((ev = xcb_poll_for_event(m_connection)))
     50 	{
     51 		deFree(ev);
     52 		/* Manage your event */
     53 	}
     54 }
     55 
     56 XcbWindow::XcbWindow (XcbDisplay& display, int width, int height, xcb_visualid_t* visual)
     57 	: WindowBase	()
     58 	, m_display		(display)
     59 {
     60 	xcb_connection_t*	connection = m_display.getConnection();
     61 	uint32_t			values[2];
     62 	m_window	= xcb_generate_id(connection);
     63 	m_colormap	= xcb_generate_id(connection);
     64 
     65 	if (visual == DE_NULL)
     66 		visual = &m_display.getScreen()->root_visual;
     67 
     68 	values[0] = m_display.getScreen()->white_pixel;
     69 	values[1] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_PROPERTY_CHANGE;
     70 
     71 	xcb_create_window	(
     72 							connection,								// Connection
     73 							XCB_COPY_FROM_PARENT,					// depth (same as root)
     74 							m_window,								// window Id
     75 							display.getScreen()->root,				// parent window
     76 							0, 0,									// x, y
     77 							static_cast<uint16_t >(width),			// width
     78 							static_cast<uint16_t >(height),			// height
     79 							10,										// border_width
     80 							XCB_WINDOW_CLASS_INPUT_OUTPUT,			// class
     81 							*visual,								// visual
     82 							XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,	// masks
     83 							values									//not used yet
     84 						);
     85 
     86 	xcb_create_colormap	(
     87 							connection,
     88 							XCB_COLORMAP_ALLOC_NONE,
     89 							m_colormap,
     90 							m_window,
     91 							*visual
     92 						);
     93 
     94 	xcb_alloc_color_reply_t* rep = xcb_alloc_color_reply(connection, xcb_alloc_color(connection, m_colormap, 65535, 0, 0), NULL);
     95 	deFree(rep);
     96 	xcb_flush (connection);
     97 }
     98 
     99 XcbWindow::~XcbWindow (void)
    100 {
    101 	xcb_flush (m_display.getConnection());
    102 	xcb_free_colormap(m_display.getConnection(), m_colormap);
    103 	xcb_destroy_window(m_display.getConnection(), m_window);
    104 }
    105 
    106 void XcbWindow::setVisibility (bool visible)
    107 {
    108 	if (visible == m_visible)
    109 		return;
    110 
    111 	if (visible)
    112 		 xcb_map_window(m_display.getConnection(), m_window);
    113 	else
    114 		xcb_unmap_window(m_display.getConnection(), m_window);
    115 
    116 	m_visible = visible;
    117 	xcb_flush (m_display.getConnection());
    118 
    119 }
    120 
    121 void XcbWindow::processEvents (void)
    122 {
    123 	// A bit of a hack, since we don't really handle all the events.
    124 	m_display.processEvents();
    125 }
    126 
    127 void XcbWindow::getDimensions (int* width, int* height) const
    128 {
    129 	xcb_get_geometry_reply_t *geom;
    130 	geom = xcb_get_geometry_reply(m_display.getConnection(), xcb_get_geometry(m_display.getConnection(), m_window), NULL);
    131 	*height = static_cast<int>(geom->height);
    132 	*width = static_cast<int>(geom->width);
    133 	deFree(geom);
    134 }
    135 
    136 void XcbWindow::setDimensions (int width, int height)
    137 {
    138 	const uint32_t		values[]	= {static_cast<uint32_t >(width), static_cast<uint32_t >(height)};
    139 	xcb_void_cookie_t	result;
    140 	xcb_connection_t*	display		= m_display.getConnection();
    141 	result = xcb_configure_window(display, m_window, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values);
    142 	DE_ASSERT(DE_NULL == xcb_request_check(display,result));
    143 	xcb_flush (display);
    144 
    145 	for(;;)
    146 	{
    147 		xcb_generic_event_t*	event = xcb_poll_for_event(display);
    148 		int						w, h;
    149 		if(event != DE_NULL)
    150 		{
    151 			if (XCB_PROPERTY_NOTIFY == (event->response_type & ~0x80))
    152 			{
    153 				const xcb_property_notify_event_t* pnEvent = (xcb_property_notify_event_t*)event;
    154 				if (pnEvent->atom == XCB_ATOM_RESOLUTION)
    155 				{
    156 					deFree(event);
    157 					break;
    158 				}
    159 			}
    160 			deFree(event);
    161 		}
    162 		getDimensions (&w,&h);
    163 		if (h==height || w==width)
    164 			break;
    165 	}
    166 }
    167 
    168 } // xcb
    169 } // tcu
    170