--- /dev/null
+//========================================================================
+// GLFW 3.4 - 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.
+//
+//========================================================================
+// Please use C89 style variable declarations in this file because VS 2010
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+
+
+// Lexically compare video modes, used by qsort
+//
+static int compareVideoModes(const void* fp, const void* sp)
+{
+ const GLFWvidmode* fm = fp;
+ const GLFWvidmode* sm = sp;
+ const int fbpp = fm->redBits + fm->greenBits + fm->blueBits;
+ const int sbpp = sm->redBits + sm->greenBits + sm->blueBits;
+ const int farea = fm->width * fm->height;
+ const int sarea = sm->width * sm->height;
+
+ // First sort on color bits per pixel
+ if (fbpp != sbpp)
+ return fbpp - sbpp;
+
+ // Then sort on screen area
+ if (farea != sarea)
+ return farea - sarea;
+
+ // Then sort on width
+ if (fm->width != sm->width)
+ return fm->width - sm->width;
+
+ // Lastly sort on refresh rate
+ return fm->refreshRate - sm->refreshRate;
+}
+
+// Retrieves the available modes for the specified monitor
+//
+static GLFWbool refreshVideoModes(_GLFWmonitor* monitor)
+{
+ int modeCount;
+ GLFWvidmode* modes;
+
+ if (monitor->modes)
+ return GLFW_TRUE;
+
+ modes = _glfwPlatformGetVideoModes(monitor, &modeCount);
+ if (!modes)
+ return GLFW_FALSE;
+
+ qsort(modes, modeCount, sizeof(GLFWvidmode), compareVideoModes);
+
+ free(monitor->modes);
+ monitor->modes = modes;
+ monitor->modeCount = modeCount;
+
+ return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW event API //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of a monitor connection or disconnection
+//
+void _glfwInputMonitor(_GLFWmonitor* monitor, int action, int placement)
+{
+ if (action == GLFW_CONNECTED)
+ {
+ _glfw.monitorCount++;
+ _glfw.monitors =
+ realloc(_glfw.monitors, sizeof(_GLFWmonitor*) * _glfw.monitorCount);
+
+ if (placement == _GLFW_INSERT_FIRST)
+ {
+ memmove(_glfw.monitors + 1,
+ _glfw.monitors,
+ ((size_t) _glfw.monitorCount - 1) * sizeof(_GLFWmonitor*));
+ _glfw.monitors[0] = monitor;
+ }
+ else
+ _glfw.monitors[_glfw.monitorCount - 1] = monitor;
+ }
+ else if (action == GLFW_DISCONNECTED)
+ {
+ int i;
+ _GLFWwindow* window;
+
+ for (window = _glfw.windowListHead; window; window = window->next)
+ {
+ if (window->monitor == monitor)
+ {
+ int width, height, xoff, yoff;
+ _glfwPlatformGetWindowSize(window, &width, &height);
+ _glfwPlatformSetWindowMonitor(window, NULL, 0, 0, width, height, 0);
+ _glfwPlatformGetWindowFrameSize(window, &xoff, &yoff, NULL, NULL);
+ _glfwPlatformSetWindowPos(window, xoff, yoff);
+ }
+ }
+
+ for (i = 0; i < _glfw.monitorCount; i++)
+ {
+ if (_glfw.monitors[i] == monitor)
+ {
+ _glfw.monitorCount--;
+ memmove(_glfw.monitors + i,
+ _glfw.monitors + i + 1,
+ ((size_t) _glfw.monitorCount - i) * sizeof(_GLFWmonitor*));
+ break;
+ }
+ }
+ }
+
+ if (_glfw.callbacks.monitor)
+ _glfw.callbacks.monitor((GLFWmonitor*) monitor, action);
+
+ if (action == GLFW_DISCONNECTED)
+ _glfwFreeMonitor(monitor);
+}
+
+// Notifies shared code that a full screen window has acquired or released
+// a monitor
+//
+void _glfwInputMonitorWindow(_GLFWmonitor* monitor, _GLFWwindow* window)
+{
+ monitor->window = window;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW internal API //////
+//////////////////////////////////////////////////////////////////////////
+
+// Allocates and returns a monitor object with the specified name and dimensions
+//
+_GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM)
+{
+ _GLFWmonitor* monitor = calloc(1, sizeof(_GLFWmonitor));
+ monitor->widthMM = widthMM;
+ monitor->heightMM = heightMM;
+
+ if (name)
+ monitor->name = _glfw_strdup(name);
+
+ return monitor;
+}
+
+// Frees a monitor object and any data associated with it
+//
+void _glfwFreeMonitor(_GLFWmonitor* monitor)
+{
+ if (monitor == NULL)
+ return;
+
+ _glfwPlatformFreeMonitor(monitor);
+
+ _glfwFreeGammaArrays(&monitor->originalRamp);
+ _glfwFreeGammaArrays(&monitor->currentRamp);
+
+ free(monitor->modes);
+ free(monitor->name);
+ free(monitor);
+}
+
+// Allocates red, green and blue value arrays of the specified size
+//
+void _glfwAllocGammaArrays(GLFWgammaramp* ramp, unsigned int size)
+{
+ ramp->red = calloc(size, sizeof(unsigned short));
+ ramp->green = calloc(size, sizeof(unsigned short));
+ ramp->blue = calloc(size, sizeof(unsigned short));
+ ramp->size = size;
+}
+
+// Frees the red, green and blue value arrays and clears the struct
+//
+void _glfwFreeGammaArrays(GLFWgammaramp* ramp)
+{
+ free(ramp->red);
+ free(ramp->green);
+ free(ramp->blue);
+
+ memset(ramp, 0, sizeof(GLFWgammaramp));
+}
+
+// Chooses the video mode most closely matching the desired one
+//
+const GLFWvidmode* _glfwChooseVideoMode(_GLFWmonitor* monitor,
+ const GLFWvidmode* desired)
+{
+ int i;
+ unsigned int sizeDiff, leastSizeDiff = UINT_MAX;
+ unsigned int rateDiff, leastRateDiff = UINT_MAX;
+ unsigned int colorDiff, leastColorDiff = UINT_MAX;
+ const GLFWvidmode* current;
+ const GLFWvidmode* closest = NULL;
+
+ if (!refreshVideoModes(monitor))
+ return NULL;
+
+ for (i = 0; i < monitor->modeCount; i++)
+ {
+ current = monitor->modes + i;
+
+ colorDiff = 0;
+
+ if (desired->redBits != GLFW_DONT_CARE)
+ colorDiff += abs(current->redBits - desired->redBits);
+ if (desired->greenBits != GLFW_DONT_CARE)
+ colorDiff += abs(current->greenBits - desired->greenBits);
+ if (desired->blueBits != GLFW_DONT_CARE)
+ colorDiff += abs(current->blueBits - desired->blueBits);
+
+ sizeDiff = abs((current->width - desired->width) *
+ (current->width - desired->width) +
+ (current->height - desired->height) *
+ (current->height - desired->height));
+
+ if (desired->refreshRate != GLFW_DONT_CARE)
+ rateDiff = abs(current->refreshRate - desired->refreshRate);
+ else
+ rateDiff = UINT_MAX - current->refreshRate;
+
+ if ((colorDiff < leastColorDiff) ||
+ (colorDiff == leastColorDiff && sizeDiff < leastSizeDiff) ||
+ (colorDiff == leastColorDiff && sizeDiff == leastSizeDiff && rateDiff < leastRateDiff))
+ {
+ closest = current;
+ leastSizeDiff = sizeDiff;
+ leastRateDiff = rateDiff;
+ leastColorDiff = colorDiff;
+ }
+ }
+
+ return closest;
+}
+
+// Performs lexical comparison between two @ref GLFWvidmode structures
+//
+int _glfwCompareVideoModes(const GLFWvidmode* fm, const GLFWvidmode* sm)
+{
+ return compareVideoModes(fm, sm);
+}
+
+// Splits a color depth into red, green and blue bit depths
+//
+void _glfwSplitBPP(int bpp, int* red, int* green, int* blue)
+{
+ int delta;
+
+ // We assume that by 32 the user really meant 24
+ if (bpp == 32)
+ bpp = 24;
+
+ // Convert "bits per pixel" to red, green & blue sizes
+
+ *red = *green = *blue = bpp / 3;
+ delta = bpp - (*red * 3);
+ if (delta >= 1)
+ *green = *green + 1;
+
+ if (delta == 2)
+ *red = *red + 1;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW public API //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLFWmonitor** glfwGetMonitors(int* count)
+{
+ assert(count != NULL);
+
+ *count = 0;
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+ *count = _glfw.monitorCount;
+ return (GLFWmonitor**) _glfw.monitors;
+}
+
+GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void)
+{
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+ if (!_glfw.monitorCount)
+ return NULL;
+
+ return (GLFWmonitor*) _glfw.monitors[0];
+}
+
+GLFWAPI void glfwGetMonitorPos(GLFWmonitor* handle, int* xpos, int* ypos)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ if (xpos)
+ *xpos = 0;
+ if (ypos)
+ *ypos = 0;
+
+ _GLFW_REQUIRE_INIT();
+
+ _glfwPlatformGetMonitorPos(monitor, xpos, ypos);
+}
+
+GLFWAPI void glfwGetMonitorWorkarea(GLFWmonitor* handle,
+ int* xpos, int* ypos,
+ int* width, int* height)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ if (xpos)
+ *xpos = 0;
+ if (ypos)
+ *ypos = 0;
+ if (width)
+ *width = 0;
+ if (height)
+ *height = 0;
+
+ _GLFW_REQUIRE_INIT();
+
+ _glfwPlatformGetMonitorWorkarea(monitor, xpos, ypos, width, height);
+}
+
+GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* handle, int* widthMM, int* heightMM)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ if (widthMM)
+ *widthMM = 0;
+ if (heightMM)
+ *heightMM = 0;
+
+ _GLFW_REQUIRE_INIT();
+
+ if (widthMM)
+ *widthMM = monitor->widthMM;
+ if (heightMM)
+ *heightMM = monitor->heightMM;
+}
+
+GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* handle,
+ float* xscale, float* yscale)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ if (xscale)
+ *xscale = 0.f;
+ if (yscale)
+ *yscale = 0.f;
+
+ _GLFW_REQUIRE_INIT();
+ _glfwPlatformGetMonitorContentScale(monitor, xscale, yscale);
+}
+
+GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* handle)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+ return monitor->name;
+}
+
+GLFWAPI void glfwSetMonitorUserPointer(GLFWmonitor* handle, void* pointer)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ _GLFW_REQUIRE_INIT();
+ monitor->userPointer = pointer;
+}
+
+GLFWAPI void* glfwGetMonitorUserPointer(GLFWmonitor* handle)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+ return monitor->userPointer;
+}
+
+GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun cbfun)
+{
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+ _GLFW_SWAP_POINTERS(_glfw.callbacks.monitor, cbfun);
+ return cbfun;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* handle, int* count)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+ assert(count != NULL);
+
+ *count = 0;
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+ if (!refreshVideoModes(monitor))
+ return NULL;
+
+ *count = monitor->modeCount;
+ return monitor->modes;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* handle)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+ _glfwPlatformGetVideoMode(monitor, &monitor->currentMode);
+ return &monitor->currentMode;
+}
+
+GLFWAPI void glfwSetGamma(GLFWmonitor* handle, float gamma)
+{
+ unsigned int i;
+ unsigned short* values;
+ GLFWgammaramp ramp;
+ const GLFWgammaramp* original;
+ assert(handle != NULL);
+ assert(gamma > 0.f);
+ assert(gamma <= FLT_MAX);
+
+ _GLFW_REQUIRE_INIT();
+
+ if (gamma != gamma || gamma <= 0.f || gamma > FLT_MAX)
+ {
+ _glfwInputError(GLFW_INVALID_VALUE, "Invalid gamma value %f", gamma);
+ return;
+ }
+
+ original = glfwGetGammaRamp(handle);
+ if (!original)
+ return;
+
+ values = calloc(original->size, sizeof(unsigned short));
+
+ for (i = 0; i < original->size; i++)
+ {
+ float value;
+
+ // Calculate intensity
+ value = i / (float) (original->size - 1);
+ // Apply gamma curve
+ value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
+ // Clamp to value range
+ value = _glfw_fminf(value, 65535.f);
+
+ values[i] = (unsigned short) value;
+ }
+
+ ramp.red = values;
+ ramp.green = values;
+ ramp.blue = values;
+ ramp.size = original->size;
+
+ glfwSetGammaRamp(handle, &ramp);
+ free(values);
+}
+
+GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* handle)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+
+ _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+ _glfwFreeGammaArrays(&monitor->currentRamp);
+ if (!_glfwPlatformGetGammaRamp(monitor, &monitor->currentRamp))
+ return NULL;
+
+ return &monitor->currentRamp;
+}
+
+GLFWAPI void glfwSetGammaRamp(GLFWmonitor* handle, const GLFWgammaramp* ramp)
+{
+ _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+ assert(monitor != NULL);
+ assert(ramp != NULL);
+ assert(ramp->size > 0);
+ assert(ramp->red != NULL);
+ assert(ramp->green != NULL);
+ assert(ramp->blue != NULL);
+
+ if (ramp->size <= 0)
+ {
+ _glfwInputError(GLFW_INVALID_VALUE,
+ "Invalid gamma ramp size %i",
+ ramp->size);
+ return;
+ }
+
+ _GLFW_REQUIRE_INIT();
+
+ if (!monitor->originalRamp.size)
+ {
+ if (!_glfwPlatformGetGammaRamp(monitor, &monitor->originalRamp))
+ return;
+ }
+
+ _glfwPlatformSetGammaRamp(monitor, ramp);
+}
+
projects / pistorm / blobdiff