diff options
Diffstat (limited to 'vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/x11_monitor.c')
| -rw-r--r-- | vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/x11_monitor.c | 614 |
1 files changed, 614 insertions, 0 deletions
diff --git a/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/x11_monitor.c b/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/x11_monitor.c new file mode 100644 index 0000000..fb3a67b --- /dev/null +++ b/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/x11_monitor.c @@ -0,0 +1,614 @@ +//======================================================================== +// GLFW 3.3 X11 - www.glfw.org +//------------------------------------------------------------------------ +// Copyright (c) 2002-2006 Marcus Geelnard +// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org> +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would +// be appreciated but is not required. +// +// 2. Altered source versions must be plainly marked as such, and must not +// be misrepresented as being the original software. +// +// 3. This notice may not be removed or altered from any source +// distribution. +// +//======================================================================== +// It is fine to use C99 in this file because it will not be built with VS +//======================================================================== + +#include "internal.h" + +#include <limits.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + + +// Check whether the display mode should be included in enumeration +// +static GLFWbool modeIsGood(const XRRModeInfo* mi) +{ + return (mi->modeFlags & RR_Interlace) == 0; +} + +// Calculates the refresh rate, in Hz, from the specified RandR mode info +// +static int calculateRefreshRate(const XRRModeInfo* mi) +{ + if (mi->hTotal && mi->vTotal) + return (int) round((double) mi->dotClock / ((double) mi->hTotal * (double) mi->vTotal)); + else + return 0; +} + +// Returns the mode info for a RandR mode XID +// +static const XRRModeInfo* getModeInfo(const XRRScreenResources* sr, RRMode id) +{ + for (int i = 0; i < sr->nmode; i++) + { + if (sr->modes[i].id == id) + return sr->modes + i; + } + + return NULL; +} + +// Convert RandR mode info to GLFW video mode +// +static GLFWvidmode vidmodeFromModeInfo(const XRRModeInfo* mi, + const XRRCrtcInfo* ci) +{ + GLFWvidmode mode; + + if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270) + { + mode.width = mi->height; + mode.height = mi->width; + } + else + { + mode.width = mi->width; + mode.height = mi->height; + } + + mode.refreshRate = calculateRefreshRate(mi); + + _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen), + &mode.redBits, &mode.greenBits, &mode.blueBits); + + return mode; +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW internal API ////// +////////////////////////////////////////////////////////////////////////// + +// Poll for changes in the set of connected monitors +// +void _glfwPollMonitorsX11(void) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + int disconnectedCount, screenCount = 0; + _GLFWmonitor** disconnected = NULL; + XineramaScreenInfo* screens = NULL; + XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display, + _glfw.x11.root); + RROutput primary = XRRGetOutputPrimary(_glfw.x11.display, + _glfw.x11.root); + + if (_glfw.x11.xinerama.available) + screens = XineramaQueryScreens(_glfw.x11.display, &screenCount); + + disconnectedCount = _glfw.monitorCount; + if (disconnectedCount) + { + disconnected = calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*)); + memcpy(disconnected, + _glfw.monitors, + _glfw.monitorCount * sizeof(_GLFWmonitor*)); + } + + for (int i = 0; i < sr->noutput; i++) + { + int j, type, widthMM, heightMM; + + XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, sr->outputs[i]); + if (oi->connection != RR_Connected || oi->crtc == None) + { + XRRFreeOutputInfo(oi); + continue; + } + + for (j = 0; j < disconnectedCount; j++) + { + if (disconnected[j] && + disconnected[j]->x11.output == sr->outputs[i]) + { + disconnected[j] = NULL; + break; + } + } + + if (j < disconnectedCount) + { + XRRFreeOutputInfo(oi); + continue; + } + + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, oi->crtc); + if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270) + { + widthMM = oi->mm_height; + heightMM = oi->mm_width; + } + else + { + widthMM = oi->mm_width; + heightMM = oi->mm_height; + } + + if (widthMM <= 0 || heightMM <= 0) + { + // HACK: If RandR does not provide a physical size, assume the + // X11 default 96 DPI and calculate from the CRTC viewport + // NOTE: These members are affected by rotation, unlike the mode + // info and output info members + widthMM = (int) (ci->width * 25.4f / 96.f); + heightMM = (int) (ci->height * 25.4f / 96.f); + } + + _GLFWmonitor* monitor = _glfwAllocMonitor(oi->name, widthMM, heightMM); + monitor->x11.output = sr->outputs[i]; + monitor->x11.crtc = oi->crtc; + + for (j = 0; j < screenCount; j++) + { + if (screens[j].x_org == ci->x && + screens[j].y_org == ci->y && + screens[j].width == ci->width && + screens[j].height == ci->height) + { + monitor->x11.index = j; + break; + } + } + + if (monitor->x11.output == primary) + type = _GLFW_INSERT_FIRST; + else + type = _GLFW_INSERT_LAST; + + _glfwInputMonitor(monitor, GLFW_CONNECTED, type); + + XRRFreeOutputInfo(oi); + XRRFreeCrtcInfo(ci); + } + + XRRFreeScreenResources(sr); + + if (screens) + XFree(screens); + + for (int i = 0; i < disconnectedCount; i++) + { + if (disconnected[i]) + _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0); + } + + free(disconnected); + } + else + { + const int widthMM = DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen); + const int heightMM = DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen); + + _glfwInputMonitor(_glfwAllocMonitor("Display", widthMM, heightMM), + GLFW_CONNECTED, + _GLFW_INSERT_FIRST); + } +} + +// Set the current video mode for the specified monitor +// +void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + GLFWvidmode current; + RRMode native = None; + + const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired); + _glfwPlatformGetVideoMode(monitor, ¤t); + if (_glfwCompareVideoModes(¤t, best) == 0) + return; + + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output); + + for (int i = 0; i < oi->nmode; i++) + { + const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]); + if (!modeIsGood(mi)) + continue; + + const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci); + if (_glfwCompareVideoModes(best, &mode) == 0) + { + native = mi->id; + break; + } + } + + if (native) + { + if (monitor->x11.oldMode == None) + monitor->x11.oldMode = ci->mode; + + XRRSetCrtcConfig(_glfw.x11.display, + sr, monitor->x11.crtc, + CurrentTime, + ci->x, ci->y, + native, + ci->rotation, + ci->outputs, + ci->noutput); + } + + XRRFreeOutputInfo(oi); + XRRFreeCrtcInfo(ci); + XRRFreeScreenResources(sr); + } +} + +// Restore the saved (original) video mode for the specified monitor +// +void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + if (monitor->x11.oldMode == None) + return; + + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + + XRRSetCrtcConfig(_glfw.x11.display, + sr, monitor->x11.crtc, + CurrentTime, + ci->x, ci->y, + monitor->x11.oldMode, + ci->rotation, + ci->outputs, + ci->noutput); + + XRRFreeCrtcInfo(ci); + XRRFreeScreenResources(sr); + + monitor->x11.oldMode = None; + } +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW platform API ////// +////////////////////////////////////////////////////////////////////////// + +void _glfwPlatformFreeMonitor(_GLFWmonitor* monitor) +{ +} + +void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + + if (ci) + { + if (xpos) + *xpos = ci->x; + if (ypos) + *ypos = ci->y; + + XRRFreeCrtcInfo(ci); + } + + XRRFreeScreenResources(sr); + } +} + +void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor, + float* xscale, float* yscale) +{ + if (xscale) + *xscale = _glfw.x11.contentScaleX; + if (yscale) + *yscale = _glfw.x11.contentScaleY; +} + +void _glfwPlatformGetMonitorWorkarea(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height) +{ + int areaX = 0, areaY = 0, areaWidth = 0, areaHeight = 0; + + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + + areaX = ci->x; + areaY = ci->y; + + const XRRModeInfo* mi = getModeInfo(sr, ci->mode); + + if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270) + { + areaWidth = mi->height; + areaHeight = mi->width; + } + else + { + areaWidth = mi->width; + areaHeight = mi->height; + } + + XRRFreeCrtcInfo(ci); + XRRFreeScreenResources(sr); + } + else + { + areaWidth = DisplayWidth(_glfw.x11.display, _glfw.x11.screen); + areaHeight = DisplayHeight(_glfw.x11.display, _glfw.x11.screen); + } + + if (_glfw.x11.NET_WORKAREA && _glfw.x11.NET_CURRENT_DESKTOP) + { + Atom* extents = NULL; + Atom* desktop = NULL; + const unsigned long extentCount = + _glfwGetWindowPropertyX11(_glfw.x11.root, + _glfw.x11.NET_WORKAREA, + XA_CARDINAL, + (unsigned char**) &extents); + + if (_glfwGetWindowPropertyX11(_glfw.x11.root, + _glfw.x11.NET_CURRENT_DESKTOP, + XA_CARDINAL, + (unsigned char**) &desktop) > 0) + { + if (extentCount >= 4 && *desktop < extentCount / 4) + { + const int globalX = extents[*desktop * 4 + 0]; + const int globalY = extents[*desktop * 4 + 1]; + const int globalWidth = extents[*desktop * 4 + 2]; + const int globalHeight = extents[*desktop * 4 + 3]; + + if (areaX < globalX) + { + areaWidth -= globalX - areaX; + areaX = globalX; + } + + if (areaY < globalY) + { + areaHeight -= globalY - areaY; + areaY = globalY; + } + + if (areaX + areaWidth > globalX + globalWidth) + areaWidth = globalX - areaX + globalWidth; + if (areaY + areaHeight > globalY + globalHeight) + areaHeight = globalY - areaY + globalHeight; + } + } + + if (extents) + XFree(extents); + if (desktop) + XFree(desktop); + } + + if (xpos) + *xpos = areaX; + if (ypos) + *ypos = areaY; + if (width) + *width = areaWidth; + if (height) + *height = areaHeight; +} + +GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count) +{ + GLFWvidmode* result; + + *count = 0; + + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output); + + result = calloc(oi->nmode, sizeof(GLFWvidmode)); + + for (int i = 0; i < oi->nmode; i++) + { + const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]); + if (!modeIsGood(mi)) + continue; + + const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci); + int j; + + for (j = 0; j < *count; j++) + { + if (_glfwCompareVideoModes(result + j, &mode) == 0) + break; + } + + // Skip duplicate modes + if (j < *count) + continue; + + (*count)++; + result[*count - 1] = mode; + } + + XRRFreeOutputInfo(oi); + XRRFreeCrtcInfo(ci); + XRRFreeScreenResources(sr); + } + else + { + *count = 1; + result = calloc(1, sizeof(GLFWvidmode)); + _glfwPlatformGetVideoMode(monitor, result); + } + + return result; +} + +void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken) + { + XRRScreenResources* sr = + XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root); + XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc); + + if (ci) + { + const XRRModeInfo* mi = getModeInfo(sr, ci->mode); + if (mi) // mi can be NULL if the monitor has been disconnected + *mode = vidmodeFromModeInfo(mi, ci); + + XRRFreeCrtcInfo(ci); + } + + XRRFreeScreenResources(sr); + } + else + { + mode->width = DisplayWidth(_glfw.x11.display, _glfw.x11.screen); + mode->height = DisplayHeight(_glfw.x11.display, _glfw.x11.screen); + mode->refreshRate = 0; + + _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen), + &mode->redBits, &mode->greenBits, &mode->blueBits); + } +} + +GLFWbool _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken) + { + const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display, + monitor->x11.crtc); + XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display, + monitor->x11.crtc); + + _glfwAllocGammaArrays(ramp, size); + + memcpy(ramp->red, gamma->red, size * sizeof(unsigned short)); + memcpy(ramp->green, gamma->green, size * sizeof(unsigned short)); + memcpy(ramp->blue, gamma->blue, size * sizeof(unsigned short)); + + XRRFreeGamma(gamma); + return GLFW_TRUE; + } + else if (_glfw.x11.vidmode.available) + { + int size; + XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size); + + _glfwAllocGammaArrays(ramp, size); + + XF86VidModeGetGammaRamp(_glfw.x11.display, + _glfw.x11.screen, + ramp->size, ramp->red, ramp->green, ramp->blue); + return GLFW_TRUE; + } + else + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "X11: Gamma ramp access not supported by server"); + return GLFW_FALSE; + } +} + +void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp) +{ + if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken) + { + if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "X11: Gamma ramp size must match current ramp size"); + return; + } + + XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size); + + memcpy(gamma->red, ramp->red, ramp->size * sizeof(unsigned short)); + memcpy(gamma->green, ramp->green, ramp->size * sizeof(unsigned short)); + memcpy(gamma->blue, ramp->blue, ramp->size * sizeof(unsigned short)); + + XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma); + XRRFreeGamma(gamma); + } + else if (_glfw.x11.vidmode.available) + { + XF86VidModeSetGammaRamp(_glfw.x11.display, + _glfw.x11.screen, + ramp->size, + (unsigned short*) ramp->red, + (unsigned short*) ramp->green, + (unsigned short*) ramp->blue); + } + else + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "X11: Gamma ramp access not supported by server"); + } +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW native API ////// +////////////////////////////////////////////////////////////////////////// + +GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* handle) +{ + _GLFWmonitor* monitor = (_GLFWmonitor*) handle; + _GLFW_REQUIRE_INIT_OR_RETURN(None); + return monitor->x11.crtc; +} + +GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* handle) +{ + _GLFWmonitor* monitor = (_GLFWmonitor*) handle; + _GLFW_REQUIRE_INIT_OR_RETURN(None); + return monitor->x11.output; +} + |