Flattened source tree.

2026-09-18 22:55:46 +00:00 · 2011-07-26 15:16:34 +02:00
parent 71f4adc3ec
commit 0f93e8f252
37 changed files with 13 additions and 189 deletions
@@ -0,0 +1,126 @@
+//========================================================================
+// GLFW - An OpenGL library
+// Platform:    X11/GLX
+// API version: 3.0
+// WWW:         http://www.glfw.org/
+//------------------------------------------------------------------------
+// Copyright (c) 2010 Camilla Berglund <elmindreda@elmindreda.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.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <limits.h>
+#include <string.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+//========================================================================
+// Retrieve the currently set gamma ramp
+//========================================================================
+
+void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
+{
+    if (_glfwLibrary.X11.RandR.available &&
+        !_glfwLibrary.X11.RandR.gammaBroken)
+    {
+#if defined (_GLFW_HAS_XRANDR)
+        size_t size = GLFW_GAMMA_RAMP_SIZE * sizeof(unsigned short);
+
+        XRRScreenResources* rr = XRRGetScreenResources(_glfwLibrary.X11.display,
+                                                       _glfwLibrary.X11.root);
+
+        XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfwLibrary.X11.display,
+                                              rr->crtcs[0]);
+
+        // TODO: Handle case of original ramp size having a size other than 256
+
+        memcpy(ramp->red, gamma->red, size);
+        memcpy(ramp->green, gamma->green, size);
+        memcpy(ramp->blue, gamma->blue, size);
+
+        XRRFreeGamma(gamma);
+        XRRFreeScreenResources(rr);
+#endif /*_GLFW_HAS_XRANDR*/
+    }
+    else if (_glfwLibrary.X11.VidMode.available)
+    {
+#if defined (_GLFW_HAS_XF86VIDMODE)
+        XF86VidModeGetGammaRamp(_glfwLibrary.X11.display,
+                                _glfwLibrary.X11.screen,
+                                GLFW_GAMMA_RAMP_SIZE,
+                                ramp->red,
+                                ramp->green,
+                                ramp->blue);
+#endif /*_GLFW_HAS_XF86VIDMODE*/
+    }
+}
+
+
+//========================================================================
+// Push the specified gamma ramp to the monitor
+//========================================================================
+
+void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
+{
+    if (_glfwLibrary.X11.RandR.available &&
+        !_glfwLibrary.X11.RandR.gammaBroken)
+    {
+#if defined (_GLFW_HAS_XRANDR)
+        int i;
+        size_t size = GLFW_GAMMA_RAMP_SIZE * sizeof(unsigned short);
+
+        XRRScreenResources* rr = XRRGetScreenResources(_glfwLibrary.X11.display,
+                                                       _glfwLibrary.X11.root);
+
+        // Update gamma per monitor
+        for (i = 0;  i < rr->ncrtc;  i++)
+        {
+            XRRCrtcGamma* gamma = XRRAllocGamma(GLFW_GAMMA_RAMP_SIZE);
+
+            memcpy(gamma->red, ramp->red, size);
+            memcpy(gamma->green, ramp->green, size);
+            memcpy(gamma->blue, ramp->blue, size);
+
+            XRRSetCrtcGamma(_glfwLibrary.X11.display, rr->crtcs[i], gamma);
+            XRRFreeGamma(gamma);
+        }
+
+        XRRFreeScreenResources(rr);
+#endif /*_GLFW_HAS_XRANDR*/
+    }
+    else if (_glfwLibrary.X11.VidMode.available)
+    {
+#if defined (_GLFW_HAS_XF86VIDMODE)
+        XF86VidModeSetGammaRamp(_glfwLibrary.X11.display,
+                                _glfwLibrary.X11.screen,
+                                GLFW_GAMMA_RAMP_SIZE,
+                                (unsigned short*) ramp->red,
+                                (unsigned short*) ramp->green,
+                                (unsigned short*) ramp->blue);
+#endif /*_GLFW_HAS_XF86VIDMODE*/
+    }
+}
+