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glfw
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Merged fullscreen and monitor modules.

This commit is contained in:
Camilla Berglund 2012-09-12 21:04:24 +02:00
parent c87829ea61
commit 55419bda67
9 changed files with 1082 additions and 1239 deletions
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22
src/CMakeLists.txt
View File

@ -3,13 +3,13 @@ include_directories(${GLFW_SOURCE_DIR}/src
${glfw_INCLUDE_DIRS}) ${glfw_INCLUDE_DIRS})
set(common_HEADERS ${GLFW_SOURCE_DIR}/include/GL/glfw3.h internal.h) set(common_HEADERS ${GLFW_SOURCE_DIR}/include/GL/glfw3.h internal.h)
set(common_SOURCES clipboard.c fullscreen.c gamma.c init.c input.c set(common_SOURCES clipboard.c gamma.c init.c input.c joystick.c monitor.c
joystick.c monitor.c opengl.c time.c window.c) opengl.c time.c window.c)
if (_GLFW_COCOA_NSGL) if (_GLFW_COCOA_NSGL)
set(glfw_HEADERS ${common_HEADERS} cocoa_platform.h) set(glfw_HEADERS ${common_HEADERS} cocoa_platform.h)
set(glfw_SOURCES ${common_SOURCES} cocoa_clipboard.m cocoa_fullscreen.m set(glfw_SOURCES ${common_SOURCES} cocoa_clipboard.m cocoa_gamma.c
cocoa_gamma.c cocoa_init.m cocoa_input.m cocoa_joystick.m cocoa_init.m cocoa_input.m cocoa_joystick.m cocoa_monitor.m
cocoa_opengl.m cocoa_time.c cocoa_window.m) cocoa_opengl.m cocoa_time.c cocoa_window.m)
if (GLFW_NATIVE_API) if (GLFW_NATIVE_API)
@ -20,20 +20,18 @@ if (_GLFW_COCOA_NSGL)
set_source_files_properties(${glfw_SOURCES} PROPERTIES LANGUAGE C) set_source_files_properties(${glfw_SOURCES} PROPERTIES LANGUAGE C)
elseif (_GLFW_WIN32_WGL) elseif (_GLFW_WIN32_WGL)
set(glfw_HEADERS ${common_HEADERS} win32_platform.h) set(glfw_HEADERS ${common_HEADERS} win32_platform.h)
set(glfw_SOURCES ${common_SOURCES} win32_clipboard.c win32_fullscreen.c set(glfw_SOURCES ${common_SOURCES} win32_clipboard.c win32_gamma.c
win32_gamma.c win32_init.c win32_input.c win32_joystick.c win32_init.c win32_input.c win32_joystick.c win32_monitor.c
win32_monitor.c win32_opengl.c win32_time.c win32_window.c win32_opengl.c win32_time.c win32_window.c win32_dllmain.c)
win32_dllmain.c)
if (GLFW_NATIVE_API) if (GLFW_NATIVE_API)
list(APPEND glfw_SOURCES win32_native.c) list(APPEND glfw_SOURCES win32_native.c)
endif() endif()
elseif (_GLFW_X11_GLX) elseif (_GLFW_X11_GLX)
set(glfw_HEADERS ${common_HEADERS} x11_platform.h) set(glfw_HEADERS ${common_HEADERS} x11_platform.h)
set(glfw_SOURCES ${common_SOURCES} x11_clipboard.c x11_fullscreen.c set(glfw_SOURCES ${common_SOURCES} x11_clipboard.c x11_gamma.c x11_init.c
x11_gamma.c x11_init.c x11_input.c x11_joystick.c x11_input.c x11_joystick.c x11_keysym2unicode.c
x11_keysym2unicode.c x11_monitor.c x11_opengl.c x11_time.c x11_monitor.c x11_opengl.c x11_time.c x11_window.c)
x11_window.c)
if (GLFW_NATIVE_API) if (GLFW_NATIVE_API)
list(APPEND glfw_SOURCES x11_native.c) list(APPEND glfw_SOURCES x11_native.c)

243
src/cocoa_fullscreen.m
View File

@ -1,243 +0,0 @@
//========================================================================
// GLFW - An OpenGL library
// Platform: Cocoa
// API Version: 3.0
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2009-2010 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 <stdlib.h>
#include <limits.h>
//========================================================================
// Check whether the display mode should be included in enumeration
//========================================================================
static GLboolean modeIsGood(CGDisplayModeRef mode)
{
uint32_t flags = CGDisplayModeGetIOFlags(mode);
if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag))
return GL_FALSE;
if (flags & kDisplayModeInterlacedFlag)
return GL_FALSE;
if (flags & kDisplayModeTelevisionFlag)
return GL_FALSE;
if (flags & kDisplayModeStretchedFlag)
return GL_FALSE;
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) &&
CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0))
{
CFRelease(format);
return GL_FALSE;
}
CFRelease(format);
return GL_TRUE;
}
//========================================================================
// Convert Core Graphics display mode to GLFW video mode
//========================================================================
static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode)
{
GLFWvidmode result;
result.width = CGDisplayModeGetWidth(mode);
result.height = CGDisplayModeGetHeight(mode);
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
{
result.redBits = 5;
result.greenBits = 5;
result.blueBits = 5;
}
else
{
result.redBits = 8;
result.greenBits = 8;
result.blueBits = 8;
}
CFRelease(format);
return result;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Change the current video mode
//========================================================================
GLboolean _glfwSetVideoMode(int* width, int* height, int* bpp, int* refreshRate)
{
CGDisplayModeRef bestMode = NULL;
CFArrayRef modes;
CFIndex count, i;
unsigned int leastSizeDiff = UINT_MAX;
double leastRateDiff = DBL_MAX;
modes = CGDisplayCopyAllDisplayModes(CGMainDisplayID(), NULL);
count = CFArrayGetCount(modes);
for (i = 0; i < count; i++)
{
CGDisplayModeRef mode = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (!modeIsGood(mode))
continue;
int modeBPP;
// Identify display mode pixel encoding
{
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
modeBPP = 16;
else
modeBPP = 32;
CFRelease(format);
}
int modeWidth = (int) CGDisplayModeGetWidth(mode);
int modeHeight = (int) CGDisplayModeGetHeight(mode);
unsigned int sizeDiff = (abs(modeBPP - *bpp) << 25) |
((modeWidth - *width) * (modeWidth - *width) +
(modeHeight - *height) * (modeHeight - *height));
double rateDiff;
if (*refreshRate > 0)
rateDiff = fabs(CGDisplayModeGetRefreshRate(mode) - *refreshRate);
else
{
// If no refresh rate was specified, then they're all the same
rateDiff = 0;
}
if ((sizeDiff < leastSizeDiff) ||
(sizeDiff == leastSizeDiff && (rateDiff < leastRateDiff)))
{
bestMode = mode;
leastSizeDiff = sizeDiff;
leastRateDiff = rateDiff;
}
}
if (!bestMode)
{
CFRelease(modes);
return GL_FALSE;
}
_glfwLibrary.NS.previousMode = CGDisplayCopyDisplayMode(CGMainDisplayID());
CGDisplayCapture(CGMainDisplayID());
CGDisplaySetDisplayMode(CGMainDisplayID(), bestMode, NULL);
CFRelease(modes);
return GL_TRUE;
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
CGDisplaySetDisplayMode(CGMainDisplayID(),
_glfwLibrary.NS.previousMode,
NULL);
CGDisplayRelease(CGMainDisplayID());
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(int* found)
{
CFArrayRef modes;
CFIndex count, i;
GLFWvidmode* result;
modes = CGDisplayCopyAllDisplayModes(CGMainDisplayID(), NULL);
count = CFArrayGetCount(modes);
result = (GLFWvidmode*) malloc(sizeof(GLFWvidmode) * count);
*found = 0;
for (i = 0; i < count; i++)
{
CGDisplayModeRef mode;
mode = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (modeIsGood(mode))
{
result[*found] = vidmodeFromCGDisplayMode(mode);
(*found)++;
}
}
CFRelease(modes);
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode *mode)
{
CGDisplayModeRef displayMode;
displayMode = CGDisplayCopyDisplayMode(CGMainDisplayID());
*mode = vidmodeFromCGDisplayMode(displayMode);
CGDisplayModeRelease(displayMode);
}

208
src/cocoa_monitor.m
View File

@ -30,6 +30,167 @@
#include "internal.h" #include "internal.h"
#include <stdlib.h>
#include <limits.h>
//========================================================================
// Check whether the display mode should be included in enumeration
//========================================================================
static GLboolean modeIsGood(CGDisplayModeRef mode)
{
uint32_t flags = CGDisplayModeGetIOFlags(mode);
if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag))
return GL_FALSE;
if (flags & kDisplayModeInterlacedFlag)
return GL_FALSE;
if (flags & kDisplayModeTelevisionFlag)
return GL_FALSE;
if (flags & kDisplayModeStretchedFlag)
return GL_FALSE;
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) &&
CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0))
{
CFRelease(format);
return GL_FALSE;
}
CFRelease(format);
return GL_TRUE;
}
//========================================================================
// Convert Core Graphics display mode to GLFW video mode
//========================================================================
static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode)
{
GLFWvidmode result;
result.width = CGDisplayModeGetWidth(mode);
result.height = CGDisplayModeGetHeight(mode);
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
{
result.redBits = 5;
result.greenBits = 5;
result.blueBits = 5;
}
else
{
result.redBits = 8;
result.greenBits = 8;
result.blueBits = 8;
}
CFRelease(format);
return result;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Change the current video mode
//========================================================================
GLboolean _glfwSetVideoMode(int* width, int* height, int* bpp, int* refreshRate)
{
CGDisplayModeRef bestMode = NULL;
CFArrayRef modes;
CFIndex count, i;
unsigned int leastSizeDiff = UINT_MAX;
double leastRateDiff = DBL_MAX;
modes = CGDisplayCopyAllDisplayModes(CGMainDisplayID(), NULL);
count = CFArrayGetCount(modes);
for (i = 0; i < count; i++)
{
CGDisplayModeRef mode = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (!modeIsGood(mode))
continue;
int modeBPP;
// Identify display mode pixel encoding
{
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
modeBPP = 16;
else
modeBPP = 32;
CFRelease(format);
}
int modeWidth = (int) CGDisplayModeGetWidth(mode);
int modeHeight = (int) CGDisplayModeGetHeight(mode);
unsigned int sizeDiff = (abs(modeBPP - *bpp) << 25) |
((modeWidth - *width) * (modeWidth - *width) +
(modeHeight - *height) * (modeHeight - *height));
double rateDiff;
if (*refreshRate > 0)
rateDiff = fabs(CGDisplayModeGetRefreshRate(mode) - *refreshRate);
else
{
// If no refresh rate was specified, then they're all the same
rateDiff = 0;
}
if ((sizeDiff < leastSizeDiff) ||
(sizeDiff == leastSizeDiff && (rateDiff < leastRateDiff)))
{
bestMode = mode;
leastSizeDiff = sizeDiff;
leastRateDiff = rateDiff;
}
}
if (!bestMode)
{
CFRelease(modes);
return GL_FALSE;
}
_glfwLibrary.NS.previousMode = CGDisplayCopyDisplayMode(CGMainDisplayID());
CGDisplayCapture(CGMainDisplayID());
CGDisplaySetDisplayMode(CGMainDisplayID(), bestMode, NULL);
CFRelease(modes);
return GL_TRUE;
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
CGDisplaySetDisplayMode(CGMainDisplayID(),
_glfwLibrary.NS.previousMode,
NULL);
CGDisplayRelease(CGMainDisplayID());
}
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
////// GLFW platform API ////// ////// GLFW platform API //////
@ -54,3 +215,50 @@ void _glfwPlatformDestroyMonitor(_GLFWmonitor* monitor)
{ {
} }
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(int* found)
{
CFArrayRef modes;
CFIndex count, i;
GLFWvidmode* result;
modes = CGDisplayCopyAllDisplayModes(CGMainDisplayID(), NULL);
count = CFArrayGetCount(modes);
result = (GLFWvidmode*) malloc(sizeof(GLFWvidmode) * count);
*found = 0;
for (i = 0; i < count; i++)
{
CGDisplayModeRef mode;
mode = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (modeIsGood(mode))
{
result[*found] = vidmodeFromCGDisplayMode(mode);
(*found)++;
}
}
CFRelease(modes);
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode *mode)
{
CGDisplayModeRef displayMode;
displayMode = CGDisplayCopyDisplayMode(CGMainDisplayID());
*mode = vidmodeFromCGDisplayMode(displayMode);
CGDisplayModeRelease(displayMode);
}

172
src/fullscreen.c
View File

@ -1,172 +0,0 @@
//========================================================================
// GLFW - An OpenGL library
// Platform: Any
// API version: 3.0
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
// Copyright (c) 2012 Torsten Walluhn <tw@mad-cad.net>
//
// 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>
#if _WIN32
#include <malloc.h>
#endif
//========================================================================
// Lexical comparison function for GLFW video modes, used by qsort
//========================================================================
int compareVideoModes(const void* firstPtr, const void* secondPtr)
{
int firstBPP, secondBPP, firstSize, secondSize;
GLFWvidmode* first = (GLFWvidmode*) firstPtr;
GLFWvidmode* second = (GLFWvidmode*) secondPtr;
// First sort on color bits per pixel
firstBPP = first->redBits +
first->greenBits +
first->blueBits;
secondBPP = second->redBits +
second->greenBits +
second->blueBits;
if (firstBPP != secondBPP)
return firstBPP - secondBPP;
// Then sort on screen area, in pixels
firstSize = first->width * first->height;
secondSize = second->width * second->height;
return firstSize - secondSize;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Lexical comparison of GLFW video modes
//========================================================================
int _glfwCompareVideoModes(const GLFWvidmode* first, const GLFWvidmode* second)
{
return compareVideoModes(first, second);
}
//========================================================================
// Convert BPP to RGB bits based on "best guess"
//========================================================================
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 //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWAPI GLFWvidmode* glfwGetVideoModes(GLFWmonitor handle, int* count)
{
_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
return NULL;
}
if (monitor == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE,
"glfwGetVideoModes: Invalid monitor handle");
return 0;
}
if (count == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE, NULL);
return NULL;
}
free(monitor->modes);
monitor->modes = _glfwPlatformGetVideoModes(monitor, count);
if (monitor->modes)
qsort(monitor->modes, *count, sizeof(GLFWvidmode), compareVideoModes);
return monitor->modes;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
GLFWAPI void glfwGetVideoMode(GLFWmonitor handle, GLFWvidmode* mode)
{
_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
return;
}
if (mode == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE, NULL);
return;
}
_glfwPlatformGetVideoMode(monitor, mode);
}

129
src/monitor.c
View File

@ -32,6 +32,40 @@
#include <string.h> #include <string.h>
#include <stdlib.h> #include <stdlib.h>
#if _WIN32
#include <malloc.h>
#endif
//========================================================================
// Lexical comparison function for GLFW video modes, used by qsort
//========================================================================
int compareVideoModes(const void* firstPtr, const void* secondPtr)
{
int firstBPP, secondBPP, firstSize, secondSize;
GLFWvidmode* first = (GLFWvidmode*) firstPtr;
GLFWvidmode* second = (GLFWvidmode*) secondPtr;
// First sort on color bits per pixel
firstBPP = first->redBits +
first->greenBits +
first->blueBits;
secondBPP = second->redBits +
second->greenBits +
second->blueBits;
if (firstBPP != secondBPP)
return firstBPP - secondBPP;
// Then sort on screen area, in pixels
firstSize = first->width * first->height;
secondSize = second->width * second->height;
return firstSize - secondSize;
}
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
@ -151,6 +185,40 @@ void _glfwDestroyMonitors(void)
} }
//========================================================================
// Lexical comparison of GLFW video modes
//========================================================================
int _glfwCompareVideoModes(const GLFWvidmode* first, const GLFWvidmode* second)
{
return compareVideoModes(first, second);
}
//========================================================================
// Convert BPP to RGB bits based on "best guess"
//========================================================================
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 ////// ////// GLFW public API //////
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
@ -281,3 +349,64 @@ GLFWAPI void glfwSetMonitorCallback(GLFWmonitorfun cbfun)
_glfwLibrary.monitorCallback= cbfun; _glfwLibrary.monitorCallback= cbfun;
} }
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWAPI GLFWvidmode* glfwGetVideoModes(GLFWmonitor handle, int* count)
{
_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
return NULL;
}
if (monitor == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE,
"glfwGetVideoModes: Invalid monitor handle");
return 0;
}
if (count == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE, NULL);
return NULL;
}
free(monitor->modes);
monitor->modes = _glfwPlatformGetVideoModes(monitor, count);
if (monitor->modes)
qsort(monitor->modes, *count, sizeof(GLFWvidmode), compareVideoModes);
return monitor->modes;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
GLFWAPI void glfwGetVideoMode(GLFWmonitor handle, GLFWvidmode* mode)
{
_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
return;
}
if (mode == NULL)
{
_glfwSetError(GLFW_INVALID_VALUE, NULL);
return;
}
_glfwPlatformGetVideoMode(monitor, mode);
}

281
src/win32_fullscreen.c
View File

@ -1,281 +0,0 @@
//========================================================================
// GLFW - An OpenGL library
// Platform: Win32
// API version: 3.0
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 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 <stdlib.h>
#include <limits.h>
#include <malloc.h>
//========================================================================
// Return closest video mode by dimensions, refresh rate and bits per pixel
//========================================================================
static GLboolean getClosestVideoMode(int* width, int* height,
int* bpp, int* refreshRate,
GLboolean exactBPP)
{
int mode, bestWidth, bestHeight, bestBPP, bestRate;
unsigned int sizeDiff, rateDiff, leastSizeDiff, leastRateDiff;
GLboolean foundMode = GL_FALSE;
DEVMODE dm;
leastSizeDiff = leastRateDiff = UINT_MAX;
for (mode = 0; ; mode++)
{
dm.dmSize = sizeof(DEVMODE);
if (!EnumDisplaySettings(NULL, mode, &dm))
break;
if (exactBPP && dm.dmBitsPerPel != *bpp)
continue;
sizeDiff = (abs(dm.dmBitsPerPel - *bpp) << 25) |
((dm.dmPelsWidth - *width) *
(dm.dmPelsWidth - *width) +
(dm.dmPelsHeight - *height) *
(dm.dmPelsHeight - *height));
if (*refreshRate > 0)
{
rateDiff = (dm.dmDisplayFrequency - *refreshRate) *
(dm.dmDisplayFrequency - *refreshRate);
}
else
{
// If no refresh rate was specified, then they're all the same
rateDiff = 0;
}
// We match first BPP, then screen area and last refresh rate
if ((sizeDiff < leastSizeDiff) ||
(sizeDiff == leastSizeDiff && (rateDiff < leastRateDiff)))
{
bestWidth = dm.dmPelsWidth;
bestHeight = dm.dmPelsHeight;
bestBPP = dm.dmBitsPerPel;
bestRate = dm.dmDisplayFrequency;
leastSizeDiff = sizeDiff;
leastRateDiff = rateDiff;
foundMode = GL_TRUE;
}
}
if (!foundMode)
return GL_FALSE;
*width = bestWidth;
*height = bestHeight;
*bpp = bestBPP;
// Only save the found refresh rate if the client requested a specific
// rate; otherwise keep it at zero to let Windows select the best rate
if (*refreshRate > 0)
*refreshRate = bestRate;
return GL_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoMode(int* width, int* height,
int* bpp, int* refreshRate,
GLboolean exactBPP)
{
DEVMODE dm;
int closestWidth, closestHeight, closestBPP, closestRate;
closestWidth = *width;
closestHeight = *height;
closestBPP = *bpp;
closestRate = *refreshRate;
if (getClosestVideoMode(&closestWidth, &closestHeight,
&closestBPP, &closestRate, GL_FALSE))
{
dm.dmSize = sizeof(DEVMODE);
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
dm.dmPelsWidth = closestWidth;
dm.dmPelsHeight = closestHeight;
dm.dmBitsPerPel = closestBPP;
if (*refreshRate > 0)
{
dm.dmFields |= DM_DISPLAYFREQUENCY;
dm.dmDisplayFrequency = closestRate;
}
if (ChangeDisplaySettings(&dm, CDS_FULLSCREEN) == DISP_CHANGE_SUCCESSFUL)
{
*width = closestWidth;
*height = closestHeight;
*bpp = closestBPP;
*refreshRate = closestRate;
}
}
else
{
dm.dmSize = sizeof(DEVMODE);
EnumDisplaySettings(NULL, ENUM_REGISTRY_SETTINGS, &dm);
*width = dm.dmPelsWidth;
*height = dm.dmPelsHeight;
*bpp = dm.dmBitsPerPel;
*refreshRate = dm.dmDisplayFrequency;
}
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
ChangeDisplaySettings(NULL, CDS_FULLSCREEN);
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
int modeIndex = 0, count = 0;
GLFWvidmode* result = NULL;
*found = 0;
for (;;)
{
int i;
GLFWvidmode mode;
DEVMODE dm;
ZeroMemory(&dm, sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
if (!EnumDisplaySettings(monitor->Win32.name, modeIndex, &dm))
break;
modeIndex++;
if (dm.dmBitsPerPel < 15)
{
// Skip modes with less than 15 BPP
continue;
}
mode.width = dm.dmPelsWidth;
mode.height = dm.dmPelsHeight;
_glfwSplitBPP(dm.dmBitsPerPel,
&mode.redBits,
&mode.greenBits,
&mode.blueBits);
for (i = 0; i < *found; i++)
{
if (_glfwCompareVideoModes(result + i, &mode) == 0)
break;
}
if (i < *found)
{
// This is a duplicate, so skip it
continue;
}
if (*found == count)
{
void* larger;
if (count)
count *= 2;
else
count = 128;
larger = realloc(result, count * sizeof(GLFWvidmode));
if (!larger)
{
free(result);
_glfwSetError(GLFW_OUT_OF_MEMORY, NULL);
return NULL;
}
result = (GLFWvidmode*) larger;
}
result[*found] = mode;
(*found)++;
}
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
DEVMODE dm;
ZeroMemory(&dm, sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
EnumDisplaySettings(monitor->Win32.name, ENUM_REGISTRY_SETTINGS, &dm);
mode->width = dm.dmPelsWidth;
mode->height = dm.dmPelsHeight;
_glfwSplitBPP(dm.dmBitsPerPel,
&mode->redBits,
&mode->greenBits,
&mode->blueBits);
}

243
src/win32_monitor.c
View File

@ -32,6 +32,8 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <limits.h>
#include <malloc.h>
// These constants are missing on MinGW // These constants are missing on MinGW
#ifndef EDS_ROTATEDMODE #ifndef EDS_ROTATEDMODE
@ -42,6 +44,146 @@
#endif #endif
//========================================================================
// Return closest video mode by dimensions, refresh rate and bits per pixel
//========================================================================
static GLboolean getClosestVideoMode(int* width, int* height,
int* bpp, int* refreshRate,
GLboolean exactBPP)
{
int mode, bestWidth, bestHeight, bestBPP, bestRate;
unsigned int sizeDiff, rateDiff, leastSizeDiff, leastRateDiff;
GLboolean foundMode = GL_FALSE;
DEVMODE dm;
leastSizeDiff = leastRateDiff = UINT_MAX;
for (mode = 0; ; mode++)
{
dm.dmSize = sizeof(DEVMODE);
if (!EnumDisplaySettings(NULL, mode, &dm))
break;
if (exactBPP && dm.dmBitsPerPel != *bpp)
continue;
sizeDiff = (abs(dm.dmBitsPerPel - *bpp) << 25) |
((dm.dmPelsWidth - *width) *
(dm.dmPelsWidth - *width) +
(dm.dmPelsHeight - *height) *
(dm.dmPelsHeight - *height));
if (*refreshRate > 0)
{
rateDiff = (dm.dmDisplayFrequency - *refreshRate) *
(dm.dmDisplayFrequency - *refreshRate);
}
else
{
// If no refresh rate was specified, then they're all the same
rateDiff = 0;
}
// We match first BPP, then screen area and last refresh rate
if ((sizeDiff < leastSizeDiff) ||
(sizeDiff == leastSizeDiff && (rateDiff < leastRateDiff)))
{
bestWidth = dm.dmPelsWidth;
bestHeight = dm.dmPelsHeight;
bestBPP = dm.dmBitsPerPel;
bestRate = dm.dmDisplayFrequency;
leastSizeDiff = sizeDiff;
leastRateDiff = rateDiff;
foundMode = GL_TRUE;
}
}
if (!foundMode)
return GL_FALSE;
*width = bestWidth;
*height = bestHeight;
*bpp = bestBPP;
// Only save the found refresh rate if the client requested a specific
// rate; otherwise keep it at zero to let Windows select the best rate
if (*refreshRate > 0)
*refreshRate = bestRate;
return GL_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoMode(int* width, int* height,
int* bpp, int* refreshRate,
GLboolean exactBPP)
{
DEVMODE dm;
int closestWidth, closestHeight, closestBPP, closestRate;
closestWidth = *width;
closestHeight = *height;
closestBPP = *bpp;
closestRate = *refreshRate;
if (getClosestVideoMode(&closestWidth, &closestHeight,
&closestBPP, &closestRate, GL_FALSE))
{
dm.dmSize = sizeof(DEVMODE);
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
dm.dmPelsWidth = closestWidth;
dm.dmPelsHeight = closestHeight;
dm.dmBitsPerPel = closestBPP;
if (*refreshRate > 0)
{
dm.dmFields |= DM_DISPLAYFREQUENCY;
dm.dmDisplayFrequency = closestRate;
}
if (ChangeDisplaySettings(&dm, CDS_FULLSCREEN) == DISP_CHANGE_SUCCESSFUL)
{
*width = closestWidth;
*height = closestHeight;
*bpp = closestBPP;
*refreshRate = closestRate;
}
}
else
{
dm.dmSize = sizeof(DEVMODE);
EnumDisplaySettings(NULL, ENUM_REGISTRY_SETTINGS, &dm);
*width = dm.dmPelsWidth;
*height = dm.dmPelsHeight;
*bpp = dm.dmBitsPerPel;
*refreshRate = dm.dmDisplayFrequency;
}
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
ChangeDisplaySettings(NULL, CDS_FULLSCREEN);
}
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
////// GLFW platform API ////// ////// GLFW platform API //////
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
@ -164,3 +306,104 @@ void _glfwPlatformDestroyMonitor(_GLFWmonitor* monitor)
free(monitor->Win32.name); free(monitor->Win32.name);
} }
//========================================================================
// Get a list of available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
int modeIndex = 0, count = 0;
GLFWvidmode* result = NULL;
*found = 0;
for (;;)
{
int i;
GLFWvidmode mode;
DEVMODE dm;
ZeroMemory(&dm, sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
if (!EnumDisplaySettings(monitor->Win32.name, modeIndex, &dm))
break;
modeIndex++;
if (dm.dmBitsPerPel < 15)
{
// Skip modes with less than 15 BPP
continue;
}
mode.width = dm.dmPelsWidth;
mode.height = dm.dmPelsHeight;
_glfwSplitBPP(dm.dmBitsPerPel,
&mode.redBits,
&mode.greenBits,
&mode.blueBits);
for (i = 0; i < *found; i++)
{
if (_glfwCompareVideoModes(result + i, &mode) == 0)
break;
}
if (i < *found)
{
// This is a duplicate, so skip it
continue;
}
if (*found == count)
{
void* larger;
if (count)
count *= 2;
else
count = 128;
larger = realloc(result, count * sizeof(GLFWvidmode));
if (!larger)
{
free(result);
_glfwSetError(GLFW_OUT_OF_MEMORY, NULL);
return NULL;
}
result = (GLFWvidmode*) larger;
}
result[*found] = mode;
(*found)++;
}
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
DEVMODE dm;
ZeroMemory(&dm, sizeof(DEVMODE));
dm.dmSize = sizeof(DEVMODE);
EnumDisplaySettings(monitor->Win32.name, ENUM_REGISTRY_SETTINGS, &dm);
mode->width = dm.dmPelsWidth;
mode->height = dm.dmPelsHeight;
_glfwSplitBPP(dm.dmBitsPerPel,
&mode->redBits,
&mode->greenBits,
&mode->blueBits);
}

531
src/x11_fullscreen.c
View File

@ -1,531 +0,0 @@
//========================================================================
// GLFW - An OpenGL library
// Platform: X11
// API version: 3.0
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 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 <stdlib.h>
#include <string.h>
//------------------------------------------------------------------------
// Display resolution
//------------------------------------------------------------------------
typedef struct
{
int width;
int height;
} _GLFWvidsize;
//========================================================================
// List available resolutions
//========================================================================
static _GLFWvidsize* getResolutions(_GLFWmonitor* monitor, int* found)
{
int i, j;
_GLFWvidsize* result = NULL;
*found = 0;
// Build array of available resolutions
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
XRRScreenSize* sizes;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
sizes = XRRConfigSizes(sc, found);
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize) * *found);
for (i = 0; i < *found; i++)
{
result[i].width = sizes[i].width;
result[i].height = sizes[i].height;
}
XRRFreeScreenConfigInfo(sc);
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo** modes;
int modeCount;
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modeCount, &modes);
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize) * modeCount);
for (i = 0; i < modeCount; i++)
{
_GLFWvidsize size;
size.width = modes[i]->hdisplay;
size.height = modes[i]->vdisplay;
for (j = 0; j < *found; j++)
{
if (memcmp(result + j, &size, sizeof(_GLFWvidsize)) == 0)
break;
}
if (j < *found)
{
// This size is a duplicate, so skip it
continue;
}
result[*found] = size;
(*found)++;
}
XFree(modes);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
if (result == NULL)
{
*found = 1;
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize));
result[0].width = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
result[0].height = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
}
return result;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Finds the video mode closest in size to the specified desired size
//========================================================================
int _glfwGetClosestVideoMode(int* width, int* height, int* rate)
{
int i, match, bestmatch;
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
int sizecount, bestsize;
int ratecount, bestrate;
short* ratelist;
XRRScreenConfiguration* sc;
XRRScreenSize* sizelist;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
sizelist = XRRConfigSizes(sc, &sizecount);
// Find the best matching mode
bestsize = -1;
bestmatch = INT_MAX;
for (i = 0; i < sizecount; i++)
{
match = (*width - sizelist[i].width) *
(*width - sizelist[i].width) +
(*height - sizelist[i].height) *
(*height - sizelist[i].height);
if (match < bestmatch)
{
bestmatch = match;
bestsize = i;
}
}
if (bestsize != -1)
{
// Report width & height of best matching mode
*width = sizelist[bestsize].width;
*height = sizelist[bestsize].height;
if (*rate > 0)
{
ratelist = XRRConfigRates(sc, bestsize, &ratecount);
bestrate = -1;
bestmatch = INT_MAX;
for (i = 0; i < ratecount; i++)
{
match = abs(ratelist[i] - *rate);
if (match < bestmatch)
{
bestmatch = match;
bestrate = ratelist[i];
}
}
if (bestrate != -1)
*rate = bestrate;
}
}
XRRFreeScreenConfigInfo(sc);
if (bestsize != -1)
return bestsize;
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo** modelist;
int bestmode, modecount;
// Get a list of all available display modes
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modecount, &modelist);
// Find the best matching mode
bestmode = -1;
bestmatch = INT_MAX;
for (i = 0; i < modecount; i++)
{
match = (*width - modelist[i]->hdisplay) *
(*width - modelist[i]->hdisplay) +
(*height - modelist[i]->vdisplay) *
(*height - modelist[i]->vdisplay);
if (match < bestmatch)
{
bestmatch = match;
bestmode = i;
}
}
if (bestmode != -1)
{
// Report width & height of best matching mode
*width = modelist[bestmode]->hdisplay;
*height = modelist[bestmode]->vdisplay;
}
XFree(modelist);
if (bestmode != -1)
return bestmode;
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
// Default: Simply use the screen resolution
*width = DisplayWidth(_glfwLibrary.X11.display, _glfwLibrary.X11.screen);
*height = DisplayHeight(_glfwLibrary.X11.display, _glfwLibrary.X11.screen);
return 0;
}
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoModeMODE(int mode, int rate)
{
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
Window root;
root = _glfwLibrary.X11.root;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, root);
// Remember old size and flag that we have changed the mode
if (!_glfwLibrary.X11.FS.modeChanged)
{
_glfwLibrary.X11.FS.oldSizeID = XRRConfigCurrentConfiguration(sc, &_glfwLibrary.X11.FS.oldRotation);
_glfwLibrary.X11.FS.oldWidth = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
_glfwLibrary.X11.FS.oldHeight = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
_glfwLibrary.X11.FS.modeChanged = GL_TRUE;
}
if (rate > 0)
{
// Set desired configuration
XRRSetScreenConfigAndRate(_glfwLibrary.X11.display,
sc,
root,
mode,
RR_Rotate_0,
(short) rate,
CurrentTime);
}
else
{
// Set desired configuration
XRRSetScreenConfig(_glfwLibrary.X11.display,
sc,
root,
mode,
RR_Rotate_0,
CurrentTime);
}
XRRFreeScreenConfigInfo(sc);
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo **modelist;
int modecount;
// Get a list of all available display modes
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modecount, &modelist);
// Unlock mode switch if necessary
if (_glfwLibrary.X11.FS.modeChanged)
{
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0);
}
// Change the video mode to the desired mode
XF86VidModeSwitchToMode(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
modelist[mode]);
// Set viewport to upper left corner (where our window will be)
XF86VidModeSetViewPort(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0, 0);
// Lock mode switch
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
1);
// Remember old mode and flag that we have changed the mode
if (!_glfwLibrary.X11.FS.modeChanged)
{
_glfwLibrary.X11.FS.oldMode = *modelist[0];
_glfwLibrary.X11.FS.modeChanged = GL_TRUE;
}
XFree(modelist);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
}
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoMode(int* width, int* height, int* rate)
{
int bestmode;
// Find a best match mode
bestmode = _glfwGetClosestVideoMode(width, height, rate);
// Change mode
_glfwSetVideoModeMODE(bestmode, *rate);
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
if (_glfwLibrary.X11.FS.modeChanged)
{
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
if (_glfwLibrary.X11.RandR.available)
{
sc = XRRGetScreenInfo(_glfwLibrary.X11.display,
_glfwLibrary.X11.root);
XRRSetScreenConfig(_glfwLibrary.X11.display,
sc,
_glfwLibrary.X11.root,
_glfwLibrary.X11.FS.oldSizeID,
_glfwLibrary.X11.FS.oldRotation,
CurrentTime);
XRRFreeScreenConfigInfo(sc);
}
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
// Unlock mode switch
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0);
// Change the video mode back to the old mode
XF86VidModeSwitchToMode(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&_glfwLibrary.X11.FS.oldMode);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
_glfwLibrary.X11.FS.modeChanged = GL_FALSE;
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// List available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
XVisualInfo* visuals;
XVisualInfo dummy;
int i, j, visualCount, sizeCount, rgbCount;
int* rgbs;
_GLFWvidsize* sizes;
GLFWvidmode* result;
visuals = XGetVisualInfo(_glfwLibrary.X11.display, 0, &dummy, &visualCount);
if (visuals == NULL)
{
_glfwSetError(GLFW_PLATFORM_ERROR,
"X11: Failed to retrieve the available visuals");
return 0;
}
// Build array of available RGB channel depths
rgbs = (int*) malloc(sizeof(int) * visualCount);
rgbCount = 0;
for (i = 0; i < visualCount; i++)
{
int gl, rgba, rgb, r, g, b;
glXGetConfig(_glfwLibrary.X11.display, &visuals[i], GLX_USE_GL, &gl);
glXGetConfig(_glfwLibrary.X11.display, &visuals[i], GLX_RGBA, &rgba);
if (!gl || !rgba)
{
// The visual lacks OpenGL or true color, so skip it
continue;
}
// Convert to RGB channel depths and encode
_glfwSplitBPP(visuals[i].depth, &r, &g, &b);
rgb = (r << 16) | (g << 8) | b;
for (j = 0; j < rgbCount; j++)
{
if (rgbs[j] == rgb)
break;
}
if (j < rgbCount)
{
// This channel depth is a duplicate, so skip it
continue;
}
rgbs[rgbCount] = rgb;
rgbCount++;
}
XFree(visuals);
// Build all permutations of channel depths and resolutions
sizes = getResolutions(monitor, &sizeCount);
result = (GLFWvidmode*) malloc(sizeof(GLFWvidmode) * rgbCount * sizeCount);
*found = 0;
for (i = 0; i < rgbCount; i++)
{
for (j = 0; j < sizeCount; j++)
{
result[*found].width = sizes[j].width;
result[*found].height = sizes[j].height;
result[*found].redBits = (rgbs[i] >> 16) & 255;
result[*found].greenBits = (rgbs[i] >> 8) & 255;
result[*found].blueBits = rgbs[i] & 255;
(*found)++;
}
}
free(sizes);
free(rgbs);
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
_glfwSplitBPP(DefaultDepth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen),
&mode->redBits, &mode->greenBits, &mode->blueBits);
mode->width = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
mode->height = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
}

492
src/x11_monitor.c
View File

@ -30,10 +30,396 @@
#include "internal.h" #include "internal.h"
#include <limits.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
//------------------------------------------------------------------------
// Display resolution
//------------------------------------------------------------------------
typedef struct
{
int width;
int height;
} _GLFWvidsize;
//========================================================================
// List available resolutions
//========================================================================
static _GLFWvidsize* getResolutions(_GLFWmonitor* monitor, int* found)
{
int i, j;
_GLFWvidsize* result = NULL;
*found = 0;
// Build array of available resolutions
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
XRRScreenSize* sizes;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
sizes = XRRConfigSizes(sc, found);
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize) * *found);
for (i = 0; i < *found; i++)
{
result[i].width = sizes[i].width;
result[i].height = sizes[i].height;
}
XRRFreeScreenConfigInfo(sc);
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo** modes;
int modeCount;
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modeCount, &modes);
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize) * modeCount);
for (i = 0; i < modeCount; i++)
{
_GLFWvidsize size;
size.width = modes[i]->hdisplay;
size.height = modes[i]->vdisplay;
for (j = 0; j < *found; j++)
{
if (memcmp(result + j, &size, sizeof(_GLFWvidsize)) == 0)
break;
}
if (j < *found)
{
// This size is a duplicate, so skip it
continue;
}
result[*found] = size;
(*found)++;
}
XFree(modes);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
if (result == NULL)
{
*found = 1;
result = (_GLFWvidsize*) malloc(sizeof(_GLFWvidsize));
result[0].width = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
result[0].height = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
}
return result;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
//========================================================================
// Finds the video mode closest in size to the specified desired size
//========================================================================
int _glfwGetClosestVideoMode(int* width, int* height, int* rate)
{
int i, match, bestmatch;
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
int sizecount, bestsize;
int ratecount, bestrate;
short* ratelist;
XRRScreenConfiguration* sc;
XRRScreenSize* sizelist;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
sizelist = XRRConfigSizes(sc, &sizecount);
// Find the best matching mode
bestsize = -1;
bestmatch = INT_MAX;
for (i = 0; i < sizecount; i++)
{
match = (*width - sizelist[i].width) *
(*width - sizelist[i].width) +
(*height - sizelist[i].height) *
(*height - sizelist[i].height);
if (match < bestmatch)
{
bestmatch = match;
bestsize = i;
}
}
if (bestsize != -1)
{
// Report width & height of best matching mode
*width = sizelist[bestsize].width;
*height = sizelist[bestsize].height;
if (*rate > 0)
{
ratelist = XRRConfigRates(sc, bestsize, &ratecount);
bestrate = -1;
bestmatch = INT_MAX;
for (i = 0; i < ratecount; i++)
{
match = abs(ratelist[i] - *rate);
if (match < bestmatch)
{
bestmatch = match;
bestrate = ratelist[i];
}
}
if (bestrate != -1)
*rate = bestrate;
}
}
XRRFreeScreenConfigInfo(sc);
if (bestsize != -1)
return bestsize;
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo** modelist;
int bestmode, modecount;
// Get a list of all available display modes
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modecount, &modelist);
// Find the best matching mode
bestmode = -1;
bestmatch = INT_MAX;
for (i = 0; i < modecount; i++)
{
match = (*width - modelist[i]->hdisplay) *
(*width - modelist[i]->hdisplay) +
(*height - modelist[i]->vdisplay) *
(*height - modelist[i]->vdisplay);
if (match < bestmatch)
{
bestmatch = match;
bestmode = i;
}
}
if (bestmode != -1)
{
// Report width & height of best matching mode
*width = modelist[bestmode]->hdisplay;
*height = modelist[bestmode]->vdisplay;
}
XFree(modelist);
if (bestmode != -1)
return bestmode;
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
// Default: Simply use the screen resolution
*width = DisplayWidth(_glfwLibrary.X11.display, _glfwLibrary.X11.screen);
*height = DisplayHeight(_glfwLibrary.X11.display, _glfwLibrary.X11.screen);
return 0;
}
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoModeMODE(int mode, int rate)
{
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
Window root;
root = _glfwLibrary.X11.root;
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, root);
// Remember old size and flag that we have changed the mode
if (!_glfwLibrary.X11.FS.modeChanged)
{
_glfwLibrary.X11.FS.oldSizeID = XRRConfigCurrentConfiguration(sc, &_glfwLibrary.X11.FS.oldRotation);
_glfwLibrary.X11.FS.oldWidth = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
_glfwLibrary.X11.FS.oldHeight = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
_glfwLibrary.X11.FS.modeChanged = GL_TRUE;
}
if (rate > 0)
{
// Set desired configuration
XRRSetScreenConfigAndRate(_glfwLibrary.X11.display,
sc,
root,
mode,
RR_Rotate_0,
(short) rate,
CurrentTime);
}
else
{
// Set desired configuration
XRRSetScreenConfig(_glfwLibrary.X11.display,
sc,
root,
mode,
RR_Rotate_0,
CurrentTime);
}
XRRFreeScreenConfigInfo(sc);
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
XF86VidModeModeInfo **modelist;
int modecount;
// Get a list of all available display modes
XF86VidModeGetAllModeLines(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&modecount, &modelist);
// Unlock mode switch if necessary
if (_glfwLibrary.X11.FS.modeChanged)
{
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0);
}
// Change the video mode to the desired mode
XF86VidModeSwitchToMode(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
modelist[mode]);
// Set viewport to upper left corner (where our window will be)
XF86VidModeSetViewPort(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0, 0);
// Lock mode switch
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
1);
// Remember old mode and flag that we have changed the mode
if (!_glfwLibrary.X11.FS.modeChanged)
{
_glfwLibrary.X11.FS.oldMode = *modelist[0];
_glfwLibrary.X11.FS.modeChanged = GL_TRUE;
}
XFree(modelist);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
}
//========================================================================
// Change the current video mode
//========================================================================
void _glfwSetVideoMode(int* width, int* height, int* rate)
{
int bestmode;
// Find a best match mode
bestmode = _glfwGetClosestVideoMode(width, height, rate);
// Change mode
_glfwSetVideoModeMODE(bestmode, *rate);
}
//========================================================================
// Restore the previously saved (original) video mode
//========================================================================
void _glfwRestoreVideoMode(void)
{
if (_glfwLibrary.X11.FS.modeChanged)
{
if (_glfwLibrary.X11.RandR.available)
{
#if defined(_GLFW_HAS_XRANDR)
XRRScreenConfiguration* sc;
if (_glfwLibrary.X11.RandR.available)
{
sc = XRRGetScreenInfo(_glfwLibrary.X11.display,
_glfwLibrary.X11.root);
XRRSetScreenConfig(_glfwLibrary.X11.display,
sc,
_glfwLibrary.X11.root,
_glfwLibrary.X11.FS.oldSizeID,
_glfwLibrary.X11.FS.oldRotation,
CurrentTime);
XRRFreeScreenConfigInfo(sc);
}
#endif /*_GLFW_HAS_XRANDR*/
}
else if (_glfwLibrary.X11.VidMode.available)
{
#if defined(_GLFW_HAS_XF86VIDMODE)
// Unlock mode switch
XF86VidModeLockModeSwitch(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
0);
// Change the video mode back to the old mode
XF86VidModeSwitchToMode(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&_glfwLibrary.X11.FS.oldMode);
#endif /*_GLFW_HAS_XF86VIDMODE*/
}
_glfwLibrary.X11.FS.modeChanged = GL_FALSE;
}
}
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
////// GLFW platform API ////// ////// GLFW platform API //////
////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////
@ -113,3 +499,109 @@ void _glfwPlatformDestroyMonitor(_GLFWmonitor* monitor)
#endif /*_GLFW_HAS_XRANDR*/ #endif /*_GLFW_HAS_XRANDR*/
} }
//========================================================================
// List available video modes
//========================================================================
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
{
XVisualInfo* visuals;
XVisualInfo dummy;
int i, j, visualCount, sizeCount, rgbCount;
int* rgbs;
_GLFWvidsize* sizes;
GLFWvidmode* result;
visuals = XGetVisualInfo(_glfwLibrary.X11.display, 0, &dummy, &visualCount);
if (visuals == NULL)
{
_glfwSetError(GLFW_PLATFORM_ERROR,
"X11: Failed to retrieve the available visuals");
return 0;
}
// Build array of available RGB channel depths
rgbs = (int*) malloc(sizeof(int) * visualCount);
rgbCount = 0;
for (i = 0; i < visualCount; i++)
{
int gl, rgba, rgb, r, g, b;
glXGetConfig(_glfwLibrary.X11.display, &visuals[i], GLX_USE_GL, &gl);
glXGetConfig(_glfwLibrary.X11.display, &visuals[i], GLX_RGBA, &rgba);
if (!gl || !rgba)
{
// The visual lacks OpenGL or true color, so skip it
continue;
}
// Convert to RGB channel depths and encode
_glfwSplitBPP(visuals[i].depth, &r, &g, &b);
rgb = (r << 16) | (g << 8) | b;
for (j = 0; j < rgbCount; j++)
{
if (rgbs[j] == rgb)
break;
}
if (j < rgbCount)
{
// This channel depth is a duplicate, so skip it
continue;
}
rgbs[rgbCount] = rgb;
rgbCount++;
}
XFree(visuals);
// Build all permutations of channel depths and resolutions
sizes = getResolutions(monitor, &sizeCount);
result = (GLFWvidmode*) malloc(sizeof(GLFWvidmode) * rgbCount * sizeCount);
*found = 0;
for (i = 0; i < rgbCount; i++)
{
for (j = 0; j < sizeCount; j++)
{
result[*found].width = sizes[j].width;
result[*found].height = sizes[j].height;
result[*found].redBits = (rgbs[i] >> 16) & 255;
result[*found].greenBits = (rgbs[i] >> 8) & 255;
result[*found].blueBits = rgbs[i] & 255;
(*found)++;
}
}
free(sizes);
free(rgbs);
return result;
}
//========================================================================
// Get the current video mode for the specified monitor
//========================================================================
void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
_glfwSplitBPP(DefaultDepth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen),
&mode->redBits, &mode->greenBits, &mode->blueBits);
mode->width = DisplayWidth(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
mode->height = DisplayHeight(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen);
}