mirror of
https://github.com/glfw/glfw.git
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122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
//========================================================================
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// GLFW - An OpenGL library
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// Platform: X11 (Unix)
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// API version: 3.0
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// WWW: http://www.glfw.org/
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#include "internal.h"
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#include <stdlib.h>
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#include <string.h>
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//////////////////////////////////////////////////////////////////////////
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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_GLFWdisplay** _glfwCreateDisplay(_GLFWdisplay** current, XRROutputInfo* outputInfo, XRRCrtcInfo* crtcInfo)
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{
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*current = _glfwMalloc(sizeof(_GLFWdisplay));
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memset(*current, 0, sizeof(_GLFWdisplay));
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(*current)->physicalWidth = outputInfo->mm_width;
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(*current)->physicalHeight = outputInfo->mm_height;
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memcpy((*current)->deviceName, outputInfo->name, GLFW_DISPLAY_PARAM_S_NAME_LEN+1);
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(*current)->deviceName[GLFW_DISPLAY_PARAM_S_NAME_LEN] = '\0';
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(*current)->screenXPosition = crtcInfo->x;
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(*current)->screenYPosition = crtcInfo->y;
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return &((*current)->next);
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}
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_GLFWdisplay* _glfwDestroyDisplay(_GLFWdisplay* display)
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{
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_GLFWdisplay* result;
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result = display->next;
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_glfwFree(display);
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return result;
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}
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void _glfwInitDisplays(void)
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{
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if(_glfwLibrary.X11.RandR.available == GL_TRUE)
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{
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XRRScreenResources* resources;
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int outputIDX;
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_GLFWdisplay** curDisplay;
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curDisplay = &_glfwLibrary.displayListHead;
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resources = XRRGetScreenResources(_glfwLibrary.X11.display,
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_glfwLibrary.X11.root);
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for(outputIDX = 0; outputIDX < resources->noutput; outputIDX++)
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{
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// physical device
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XRROutputInfo* outputInfo = NULL;
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// logical surface
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XRRCrtcInfo* crtcInfo = NULL;
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int crtcIDX;
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outputInfo = XRRGetOutputInfo(_glfwLibrary.X11.display,
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resources,
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resources->outputs[outputIDX]);
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if(outputInfo->connection == RR_Connected)
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{
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for(crtcIDX = 0; crtcIDX < outputInfo->ncrtc; crtcIDX++)
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{
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if(outputInfo->crtc == outputInfo->crtcs[crtcIDX])
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{
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crtcInfo = XRRGetCrtcInfo(_glfwLibrary.X11.display,
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resources,
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outputInfo->crtcs[crtcIDX]);
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break;
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}
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}
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curDisplay = _glfwCreateDisplay(curDisplay, outputInfo, crtcInfo);
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XRRFreeCrtcInfo(crtcInfo);
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}
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XRRFreeOutputInfo(outputInfo);
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}
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}
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}
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void _glfwTerminateDisplays(void)
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{
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while(_glfwLibrary.displayListHead)
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_glfwLibrary.displayListHead = _glfwDestroyDisplay(_glfwLibrary.displayListHead);
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}
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