Made C-only modules C.

2026-09-18 22:55:46 +00:00 · 2012-02-15 01:20:27 +01:00
parent 65f55d03b1
commit e7f7c19de3
3 changed files with 4 additions and 2 deletions
@@ -0,0 +1,97 @@
+//========================================================================
+// GLFW - An OpenGL library
+// Platform:    Cocoa/NSOpenGL
+// 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>
+
+#include <ApplicationServices/ApplicationServices.h>
+
+
+//************************************************************************
+//****                  GLFW internal functions                       ****
+//************************************************************************
+
+//========================================================================
+// Save the original gamma ramp so that we can restore it later
+//========================================================================
+
+void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
+{
+    uint32_t sampleCount;
+    int i;
+    CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
+    CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
+    CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
+
+    // For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
+    if (_glfwLibrary.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
+        return;
+
+    CGGetDisplayTransferByTable(CGMainDisplayID(), GLFW_GAMMA_RAMP_SIZE, red, green, blue,
+                                &sampleCount);
+
+    for (i = 0; i < GLFW_GAMMA_RAMP_SIZE; i++)
+    {
+        ramp->red[i] = red[i] * 65535;
+        ramp->green[i] = green[i] * 65535;
+        ramp->blue[i] = blue[i] * 65535;
+    }
+}
+
+
+//========================================================================
+// Make the specified gamma ramp current
+//========================================================================
+
+void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
+{
+    int i;
+    int size = GLFW_GAMMA_RAMP_SIZE;
+    CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
+    CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
+    CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
+
+    // For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
+    if (_glfwLibrary.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
+        return;
+
+    // Convert to float & take the difference of the original gamma and
+    // the linear function.
+    for (i = 0; i < size; i++)
+    {
+        red[i] = ramp->red[i] / 65535.f;
+        green[i] = ramp->green[i] / 65535.f;
+        blue[i] = ramp->blue[i] / 65535.f;
+    }
+
+    CGSetDisplayTransferByTable(CGMainDisplayID(), GLFW_GAMMA_RAMP_SIZE, red, green, blue);
+}
+