first commit
This commit is contained in:
Irlan Robson
491
external/glfw/x11_monitor.c
vendored
Normal file
491
external/glfw/x11_monitor.c
vendored
Normal file
@ -0,0 +1,491 @@
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//========================================================================
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// GLFW 3.3 X11 - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2016 Camilla Berglund <elmindreda@glfw.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 <limits.h>
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#include <stdlib.h>
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#include <string.h>
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// Check whether the display mode should be included in enumeration
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//
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static GLFWbool modeIsGood(const XRRModeInfo* mi)
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{
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return (mi->modeFlags & RR_Interlace) == 0;
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}
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// Calculates the refresh rate, in Hz, from the specified RandR mode info
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//
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static int calculateRefreshRate(const XRRModeInfo* mi)
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{
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if (mi->hTotal && mi->vTotal)
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return (int) ((double) mi->dotClock / ((double) mi->hTotal * (double) mi->vTotal));
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else
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return 0;
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}
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// Returns the mode info for a RandR mode XID
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//
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static const XRRModeInfo* getModeInfo(const XRRScreenResources* sr, RRMode id)
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{
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int i;
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for (i = 0; i < sr->nmode; i++)
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{
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if (sr->modes[i].id == id)
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return sr->modes + i;
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}
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return NULL;
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}
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// Convert RandR mode info to GLFW video mode
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//
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static GLFWvidmode vidmodeFromModeInfo(const XRRModeInfo* mi,
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const XRRCrtcInfo* ci)
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{
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GLFWvidmode mode;
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if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
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{
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mode.width = mi->height;
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mode.height = mi->width;
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}
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else
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{
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mode.width = mi->width;
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mode.height = mi->height;
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}
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mode.refreshRate = calculateRefreshRate(mi);
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_glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
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&mode.redBits, &mode.greenBits, &mode.blueBits);
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return mode;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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// Set the current video mode for the specified monitor
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//
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GLFWbool _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
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{
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XRRScreenResources* sr;
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XRRCrtcInfo* ci;
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XRROutputInfo* oi;
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GLFWvidmode current;
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const GLFWvidmode* best;
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RRMode native = None;
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int i;
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best = _glfwChooseVideoMode(monitor, desired);
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_glfwPlatformGetVideoMode(monitor, ¤t);
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if (_glfwCompareVideoModes(¤t, best) == 0)
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return GLFW_TRUE;
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sr = XRRGetScreenResources(_glfw.x11.display, _glfw.x11.root);
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ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
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oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
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for (i = 0; i < oi->nmode; i++)
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{
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const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
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if (!modeIsGood(mi))
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continue;
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const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
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if (_glfwCompareVideoModes(best, &mode) == 0)
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{
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native = mi->id;
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break;
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}
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}
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if (native)
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{
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if (monitor->x11.oldMode == None)
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monitor->x11.oldMode = ci->mode;
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XRRSetCrtcConfig(_glfw.x11.display,
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sr, monitor->x11.crtc,
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CurrentTime,
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ci->x, ci->y,
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native,
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ci->rotation,
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ci->outputs,
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ci->noutput);
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}
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XRRFreeOutputInfo(oi);
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XRRFreeCrtcInfo(ci);
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XRRFreeScreenResources(sr);
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if (!native)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Monitor mode list changed");
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return GLFW_FALSE;
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}
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}
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return GLFW_TRUE;
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}
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// Restore the saved (original) video mode for the specified monitor
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//
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void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
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{
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XRRScreenResources* sr;
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XRRCrtcInfo* ci;
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if (monitor->x11.oldMode == None)
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return;
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sr = XRRGetScreenResources(_glfw.x11.display, _glfw.x11.root);
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ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
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XRRSetCrtcConfig(_glfw.x11.display,
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sr, monitor->x11.crtc,
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CurrentTime,
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ci->x, ci->y,
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monitor->x11.oldMode,
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ci->rotation,
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ci->outputs,
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ci->noutput);
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XRRFreeCrtcInfo(ci);
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XRRFreeScreenResources(sr);
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monitor->x11.oldMode = None;
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}
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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_GLFWmonitor** _glfwPlatformGetMonitors(int* count)
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{
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int i, j, k, found = 0;
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_GLFWmonitor** monitors = NULL;
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*count = 0;
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if (_glfw.x11.randr.available)
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{
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int screenCount = 0;
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XineramaScreenInfo* screens = NULL;
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XRRScreenResources* sr = XRRGetScreenResources(_glfw.x11.display,
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_glfw.x11.root);
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RROutput primary = XRRGetOutputPrimary(_glfw.x11.display,
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_glfw.x11.root);
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monitors = calloc(sr->noutput, sizeof(_GLFWmonitor*));
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if (_glfw.x11.xinerama.available)
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screens = XineramaQueryScreens(_glfw.x11.display, &screenCount);
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for (i = 0; i < sr->ncrtc; i++)
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{
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XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display,
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sr, sr->crtcs[i]);
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for (j = 0; j < ci->noutput; j++)
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{
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int widthMM, heightMM;
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_GLFWmonitor* monitor;
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XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display,
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sr, ci->outputs[j]);
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if (oi->connection != RR_Connected)
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{
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XRRFreeOutputInfo(oi);
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continue;
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}
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if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
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{
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widthMM = oi->mm_height;
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heightMM = oi->mm_width;
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}
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else
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{
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widthMM = oi->mm_width;
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heightMM = oi->mm_height;
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}
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monitor = _glfwAllocMonitor(oi->name, widthMM, heightMM);
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monitor->x11.output = ci->outputs[j];
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monitor->x11.crtc = oi->crtc;
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for (k = 0; k < screenCount; k++)
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{
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if (screens[k].x_org == ci->x &&
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screens[k].y_org == ci->y &&
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screens[k].width == ci->width &&
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screens[k].height == ci->height)
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{
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monitor->x11.index = k;
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break;
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}
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}
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XRRFreeOutputInfo(oi);
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found++;
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monitors[found - 1] = monitor;
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if (ci->outputs[j] == primary)
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_GLFW_SWAP_POINTERS(monitors[0], monitors[found - 1]);
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}
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XRRFreeCrtcInfo(ci);
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}
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XRRFreeScreenResources(sr);
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if (screens)
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XFree(screens);
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if (found == 0)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: RandR monitor support seems broken");
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_glfw.x11.randr.monitorBroken = GLFW_TRUE;
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free(monitors);
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monitors = NULL;
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}
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}
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if (!monitors)
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{
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monitors = calloc(1, sizeof(_GLFWmonitor*));
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monitors[0] = _glfwAllocMonitor("Display",
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DisplayWidthMM(_glfw.x11.display,
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_glfw.x11.screen),
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DisplayHeightMM(_glfw.x11.display,
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_glfw.x11.screen));
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found = 1;
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}
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*count = found;
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return monitors;
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}
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GLFWbool _glfwPlatformIsSameMonitor(_GLFWmonitor* first, _GLFWmonitor* second)
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{
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return first->x11.crtc == second->x11.crtc;
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}
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void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
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{
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XRRScreenResources* sr;
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XRRCrtcInfo* ci;
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sr = XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
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ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
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if (xpos)
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*xpos = ci->x;
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if (ypos)
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*ypos = ci->y;
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XRRFreeCrtcInfo(ci);
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XRRFreeScreenResources(sr);
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}
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}
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GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
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{
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GLFWvidmode* result;
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*count = 0;
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if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
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{
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int i, j;
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XRRScreenResources* sr;
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XRRCrtcInfo* ci;
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XRROutputInfo* oi;
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sr = XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
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ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
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oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
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result = calloc(oi->nmode, sizeof(GLFWvidmode));
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for (i = 0; i < oi->nmode; i++)
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{
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const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
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if (!modeIsGood(mi))
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continue;
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const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
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for (j = 0; j < *count; j++)
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{
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if (_glfwCompareVideoModes(result + j, &mode) == 0)
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break;
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}
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// Skip duplicate modes
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if (j < *count)
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continue;
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(*count)++;
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result[*count - 1] = mode;
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}
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XRRFreeOutputInfo(oi);
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XRRFreeCrtcInfo(ci);
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XRRFreeScreenResources(sr);
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}
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else
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{
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*count = 1;
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result = calloc(1, sizeof(GLFWvidmode));
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_glfwPlatformGetVideoMode(monitor, result);
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}
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return result;
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}
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void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
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{
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XRRScreenResources* sr;
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XRRCrtcInfo* ci;
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sr = XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
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ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
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*mode = vidmodeFromModeInfo(getModeInfo(sr, ci->mode), ci);
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XRRFreeCrtcInfo(ci);
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XRRFreeScreenResources(sr);
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}
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else
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{
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mode->width = DisplayWidth(_glfw.x11.display, _glfw.x11.screen);
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mode->height = DisplayHeight(_glfw.x11.display, _glfw.x11.screen);
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mode->refreshRate = 0;
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_glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
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&mode->redBits, &mode->greenBits, &mode->blueBits);
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}
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}
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
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{
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const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display,
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monitor->x11.crtc);
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XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
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monitor->x11.crtc);
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_glfwAllocGammaArrays(ramp, size);
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memcpy(ramp->red, gamma->red, size * sizeof(unsigned short));
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memcpy(ramp->green, gamma->green, size * sizeof(unsigned short));
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memcpy(ramp->blue, gamma->blue, size * sizeof(unsigned short));
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XRRFreeGamma(gamma);
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}
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#if defined(_GLFW_HAS_XF86VM)
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else if (_glfw.x11.vidmode.available)
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{
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int size;
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XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
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_glfwAllocGammaArrays(ramp, size);
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XF86VidModeGetGammaRamp(_glfw.x11.display,
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_glfw.x11.screen,
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ramp->size, ramp->red, ramp->green, ramp->blue);
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}
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#endif /*_GLFW_HAS_XF86VM*/
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}
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
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{
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XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size);
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memcpy(gamma->red, ramp->red, ramp->size * sizeof(unsigned short));
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memcpy(gamma->green, ramp->green, ramp->size * sizeof(unsigned short));
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memcpy(gamma->blue, ramp->blue, ramp->size * sizeof(unsigned short));
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XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma);
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XRRFreeGamma(gamma);
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}
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#if defined(_GLFW_HAS_XF86VM)
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else if (_glfw.x11.vidmode.available)
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{
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XF86VidModeSetGammaRamp(_glfw.x11.display,
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_glfw.x11.screen,
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ramp->size,
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(unsigned short*) ramp->red,
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(unsigned short*) ramp->green,
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(unsigned short*) ramp->blue);
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}
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#endif /*_GLFW_HAS_XF86VM*/
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW native API //////
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//////////////////////////////////////////////////////////////////////////
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||||
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GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* handle)
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{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(None);
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return monitor->x11.crtc;
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}
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||||
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GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* handle)
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||||
{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(None);
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||||
return monitor->x11.output;
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||||
}
|
||||
|
||||
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