+++ /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