Initial Commit

1 files changed, 401 insertions, 0 deletions

diff --git a/glfw-3.2.1/src/win32_monitor.c b/glfw-3.2.1/src/win32_monitor.c
new file mode 100644
index 0000000..e55c9a7
--- /dev/null
+++ b/glfw-3.2.1/src/win32_monitor.c
@@ -0,0 +1,401 @@
+//========================================================================
+// GLFW 3.2 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2016 Camilla Berglund <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.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <malloc.h>
+
+
+// Create monitor from an adapter and (optionally) a display
+//
+static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
+                                   DISPLAY_DEVICEW* display)
+{
+    _GLFWmonitor* monitor;
+    char* name;
+    HDC dc;
+
+    if (display)
+        name = _glfwCreateUTF8FromWideStringWin32(display->DeviceString);
+    else
+        name = _glfwCreateUTF8FromWideStringWin32(adapter->DeviceString);
+    if (!name)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to convert string to UTF-8");
+        return NULL;
+    }
+
+    dc = CreateDCW(L"DISPLAY", adapter->DeviceName, NULL, NULL);
+
+    monitor = _glfwAllocMonitor(name,
+                                GetDeviceCaps(dc, HORZSIZE),
+                                GetDeviceCaps(dc, VERTSIZE));
+
+    DeleteDC(dc);
+    free(name);
+
+    if (adapter->StateFlags & DISPLAY_DEVICE_MODESPRUNED)
+        monitor->win32.modesPruned = GLFW_TRUE;
+
+    wcscpy(monitor->win32.adapterName, adapter->DeviceName);
+    WideCharToMultiByte(CP_UTF8, 0,
+                        adapter->DeviceName, -1,
+                        monitor->win32.publicAdapterName,
+                        sizeof(monitor->win32.publicAdapterName),
+                        NULL, NULL);
+
+    if (display)
+    {
+        wcscpy(monitor->win32.displayName, display->DeviceName);
+        WideCharToMultiByte(CP_UTF8, 0,
+                            display->DeviceName, -1,
+                            monitor->win32.publicDisplayName,
+                            sizeof(monitor->win32.publicDisplayName),
+                            NULL, NULL);
+    }
+
+    return monitor;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Change the current video mode
+//
+GLFWbool _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    GLFWvidmode current;
+    const GLFWvidmode* best;
+    DEVMODEW dm;
+
+    best = _glfwChooseVideoMode(monitor, desired);
+    _glfwPlatformGetVideoMode(monitor, &current);
+    if (_glfwCompareVideoModes(&current, best) == 0)
+        return GLFW_TRUE;
+
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(DEVMODEW);
+    dm.dmFields           = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL |
+                            DM_DISPLAYFREQUENCY;
+    dm.dmPelsWidth        = best->width;
+    dm.dmPelsHeight       = best->height;
+    dm.dmBitsPerPel       = best->redBits + best->greenBits + best->blueBits;
+    dm.dmDisplayFrequency = best->refreshRate;
+
+    if (dm.dmBitsPerPel < 15 || dm.dmBitsPerPel >= 24)
+        dm.dmBitsPerPel = 32;
+
+    if (ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                 &dm,
+                                 NULL,
+                                 CDS_FULLSCREEN,
+                                 NULL) != DISP_CHANGE_SUCCESSFUL)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to set video mode");
+        return GLFW_FALSE;
+    }
+
+    monitor->win32.modeChanged = GLFW_TRUE;
+    return GLFW_TRUE;
+}
+
+// Restore the previously saved (original) video mode
+//
+void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor)
+{
+    if (monitor->win32.modeChanged)
+    {
+        ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                 NULL, NULL, CDS_FULLSCREEN, NULL);
+        monitor->win32.modeChanged = GLFW_FALSE;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+_GLFWmonitor** _glfwPlatformGetMonitors(int* count)
+{
+    int found = 0;
+    DWORD adapterIndex, displayIndex, primaryIndex = 0;
+    DISPLAY_DEVICEW adapter, display;
+    GLFWbool hasDisplays = GLFW_FALSE;
+    _GLFWmonitor** monitors = NULL;
+
+    *count = 0;
+
+    // HACK: Check if any active adapters have connected displays
+    //       If not, this is a headless system or a VMware guest
+
+    for (adapterIndex = 0;  ;  adapterIndex++)
+    {
+        ZeroMemory(&adapter, sizeof(DISPLAY_DEVICEW));
+        adapter.cb = sizeof(DISPLAY_DEVICEW);
+
+        if (!EnumDisplayDevicesW(NULL, adapterIndex, &adapter, 0))
+            break;
+
+        if (!(adapter.StateFlags & DISPLAY_DEVICE_ACTIVE))
+            continue;
+
+        ZeroMemory(&display, sizeof(DISPLAY_DEVICEW));
+        display.cb = sizeof(DISPLAY_DEVICEW);
+
+        if (EnumDisplayDevicesW(adapter.DeviceName, 0, &display, 0))
+        {
+            hasDisplays = GLFW_TRUE;
+            break;
+        }
+    }
+
+    for (adapterIndex = 0;  ;  adapterIndex++)
+    {
+        ZeroMemory(&adapter, sizeof(DISPLAY_DEVICEW));
+        adapter.cb = sizeof(DISPLAY_DEVICEW);
+
+        if (!EnumDisplayDevicesW(NULL, adapterIndex, &adapter, 0))
+            break;
+
+        if (!(adapter.StateFlags & DISPLAY_DEVICE_ACTIVE))
+            continue;
+
+        if (adapter.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
+            primaryIndex = found;
+
+        if (hasDisplays)
+        {
+            for (displayIndex = 0;  ;  displayIndex++)
+            {
+                ZeroMemory(&display, sizeof(DISPLAY_DEVICEW));
+                display.cb = sizeof(DISPLAY_DEVICEW);
+
+                if (!EnumDisplayDevicesW(adapter.DeviceName, displayIndex, &display, 0))
+                    break;
+
+                found++;
+                monitors = realloc(monitors, sizeof(_GLFWmonitor*) * found);
+                monitors[found - 1] = createMonitor(&adapter, &display);
+            }
+        }
+        else
+        {
+            found++;
+            monitors = realloc(monitors, sizeof(_GLFWmonitor*) * found);
+            monitors[found - 1] = createMonitor(&adapter, NULL);
+        }
+    }
+
+    _GLFW_SWAP_POINTERS(monitors[0], monitors[primaryIndex]);
+
+    *count = found;
+    return monitors;
+}
+
+GLFWbool _glfwPlatformIsSameMonitor(_GLFWmonitor* first, _GLFWmonitor* second)
+{
+    if (wcslen(first->win32.displayName))
+        return wcscmp(first->win32.displayName, second->win32.displayName) == 0;
+    else
+        return wcscmp(first->win32.adapterName, second->win32.adapterName) == 0;
+}
+
+void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    DEVMODEW settings;
+    ZeroMemory(&settings, sizeof(DEVMODEW));
+    settings.dmSize = sizeof(DEVMODEW);
+
+    EnumDisplaySettingsExW(monitor->win32.adapterName,
+                           ENUM_CURRENT_SETTINGS,
+                           &settings,
+                           EDS_ROTATEDMODE);
+
+    if (xpos)
+        *xpos = settings.dmPosition.x;
+    if (ypos)
+        *ypos = settings.dmPosition.y;
+}
+
+GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
+{
+    int modeIndex = 0, size = 0;
+    GLFWvidmode* result = NULL;
+
+    *count = 0;
+
+    for (;;)
+    {
+        int i;
+        GLFWvidmode mode;
+        DEVMODEW dm;
+
+        ZeroMemory(&dm, sizeof(DEVMODEW));
+        dm.dmSize = sizeof(DEVMODEW);
+
+        if (!EnumDisplaySettingsW(monitor->win32.adapterName, modeIndex, &dm))
+            break;
+
+        modeIndex++;
+
+        // Skip modes with less than 15 BPP
+        if (dm.dmBitsPerPel < 15)
+            continue;
+
+        mode.width  = dm.dmPelsWidth;
+        mode.height = dm.dmPelsHeight;
+        mode.refreshRate = dm.dmDisplayFrequency;
+        _glfwSplitBPP(dm.dmBitsPerPel,
+                      &mode.redBits,
+                      &mode.greenBits,
+                      &mode.blueBits);
+
+        for (i = 0;  i < *count;  i++)
+        {
+            if (_glfwCompareVideoModes(result + i, &mode) == 0)
+                break;
+        }
+
+        // Skip duplicate modes
+        if (i < *count)
+            continue;
+
+        if (monitor->win32.modesPruned)
+        {
+            // Skip modes not supported by the connected displays
+            if (ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                         &dm,
+                                         NULL,
+                                         CDS_TEST,
+                                         NULL) != DISP_CHANGE_SUCCESSFUL)
+            {
+                continue;
+            }
+        }
+
+        if (*count == size)
+        {
+            size += 128;
+            result = (GLFWvidmode*) realloc(result, size * sizeof(GLFWvidmode));
+        }
+
+        (*count)++;
+        result[*count - 1] = mode;
+    }
+
+    if (!*count)
+    {
+        // HACK: Report the current mode if no valid modes were found
+        result = calloc(1, sizeof(GLFWvidmode));
+        _glfwPlatformGetVideoMode(monitor, result);
+        *count = 1;
+    }
+
+    return result;
+}
+
+void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    DEVMODEW dm;
+
+    ZeroMemory(&dm, sizeof(DEVMODEW));
+    dm.dmSize = sizeof(DEVMODEW);
+
+    EnumDisplaySettingsW(monitor->win32.adapterName, ENUM_CURRENT_SETTINGS, &dm);
+
+    mode->width  = dm.dmPelsWidth;
+    mode->height = dm.dmPelsHeight;
+    mode->refreshRate = dm.dmDisplayFrequency;
+    _glfwSplitBPP(dm.dmBitsPerPel,
+                  &mode->redBits,
+                  &mode->greenBits,
+                  &mode->blueBits);
+}
+
+void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[768];
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    GetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+
+    _glfwAllocGammaArrays(ramp, 256);
+
+    memcpy(ramp->red,   values +   0, 256 * sizeof(unsigned short));
+    memcpy(ramp->green, values + 256, 256 * sizeof(unsigned short));
+    memcpy(ramp->blue,  values + 512, 256 * sizeof(unsigned short));
+}
+
+void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[768];
+
+    if (ramp->size != 256)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Gamma ramp size must be 256");
+        return;
+    }
+
+    memcpy(values +   0, ramp->red,   256 * sizeof(unsigned short));
+    memcpy(values + 256, ramp->green, 256 * sizeof(unsigned short));
+    memcpy(values + 512, ramp->blue,  256 * sizeof(unsigned short));
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    SetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return monitor->win32.publicAdapterName;
+}
+
+GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return monitor->win32.publicDisplayName;
+}
+