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Fix error return value for glfwGetVideoMode

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The function returned a pointer to a zeroed video mode instead of NULL
on error because errors were not propagated up from the platform.

Fixes #1292
This commit is contained in:
Camilla Löwy 2024-02-21 00:38:33 +01:00
parent d7e7b164bc
commit d45cbc82c9
13 changed files with 43 additions and 16 deletions
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1
README.md
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@ -176,6 +176,7 @@ information on what to include when reporting a bug.
- Disabled tests and examples by default when built as a CMake subdirectory
- Removed `GLFW_USE_OSMESA` CMake option enabling the Null platform (#1958)
- Removed CMake generated configuration header
- Bugfix: `glfwGetVideoMode` returned an invalid mode on error (#1292)
- [Win32] Added a version info resource to the GLFW DLL
- [Win32] Made hidden helper window use its own window class
- [Win32] Bugfix: The foreground lock timeout was overridden, ignoring the user

9
src/cocoa_monitor.m
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@ -549,13 +549,20 @@ GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count)
} // autoreleasepool
}
void _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode *mode)
GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode *mode)
{
@autoreleasepool {
CGDisplayModeRef native = CGDisplayCopyDisplayMode(monitor->ns.displayID);
if (!native)
{
_glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to query display mode");
return GLFW_FALSE;
}
*mode = vidmodeFromCGDisplayMode(native, monitor->ns.fallbackRefreshRate);
CGDisplayModeRelease(native);
return GLFW_TRUE;
} // autoreleasepool
}

2
src/cocoa_platform.h
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@ -281,7 +281,7 @@ void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);

2
src/internal.h
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@ -700,7 +700,7 @@ struct _GLFWplatform
void (*getMonitorContentScale)(_GLFWmonitor*,float*,float*);
void (*getMonitorWorkarea)(_GLFWmonitor*,int*,int*,int*,int*);
GLFWvidmode* (*getVideoModes)(_GLFWmonitor*,int*);
void (*getVideoMode)(_GLFWmonitor*,GLFWvidmode*);
GLFWbool (*getVideoMode)(_GLFWmonitor*,GLFWvidmode*);
GLFWbool (*getGammaRamp)(_GLFWmonitor*,GLFWgammaramp*);
void (*setGammaRamp)(_GLFWmonitor*,const GLFWgammaramp*);
// window

4
src/monitor.c
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@ -450,7 +450,9 @@ GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* handle)
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
_glfw.platform.getVideoMode(monitor, &monitor->currentMode);
if (!_glfw.platform.getVideoMode(monitor, &monitor->currentMode))
return NULL;
return &monitor->currentMode;
}

3
src/null_monitor.c
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@ -109,9 +109,10 @@ GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found)
return mode;
}
void _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode)
GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
*mode = getVideoMode();
return GLFW_TRUE;
}
GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp)

2
src/null_platform.h
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@ -204,7 +204,7 @@ void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found);
void _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);

10
src/win32_monitor.c
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@ -470,13 +470,17 @@ GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count)
return result;
}
void _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode)
GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
DEVMODEW dm;
ZeroMemory(&dm, sizeof(dm));
dm.dmSize = sizeof(dm);
EnumDisplaySettingsW(monitor->win32.adapterName, ENUM_CURRENT_SETTINGS, &dm);
if (!EnumDisplaySettingsW(monitor->win32.adapterName, ENUM_CURRENT_SETTINGS, &dm))
{
_glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to query display settings");
return GLFW_FALSE;
}
mode->width = dm.dmPelsWidth;
mode->height = dm.dmPelsHeight;
@ -485,6 +489,8 @@ void _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode)
&mode->redBits,
&mode->greenBits,
&mode->blueBits);
return GLFW_TRUE;
}
GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp)

2
src/win32_platform.h
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@ -609,7 +609,7 @@ void _glfwGetMonitorPosWin32(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleWin32(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaWin32(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampWin32(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);

3
src/wl_monitor.c
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@ -232,9 +232,10 @@ GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* found)
return monitor->modes;
}
void _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode)
GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
*mode = monitor->modes[monitor->wl.currentMode];
return GLFW_TRUE;
}
GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp)

2
src/wl_platform.h
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@ -679,7 +679,7 @@ void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);

17
src/x11_monitor.c
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@ -491,24 +491,31 @@ GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count)
return result;
}
void _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode)
GLFWbool _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode)
{
if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
{
XRRScreenResources* sr =
XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
const XRRModeInfo* mi = NULL;
XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
if (ci)
{
const XRRModeInfo* mi = getModeInfo(sr, ci->mode);
if (mi) // mi can be NULL if the monitor has been disconnected
mi = getModeInfo(sr, ci->mode);
if (mi)
*mode = vidmodeFromModeInfo(mi, ci);
XRRFreeCrtcInfo(ci);
}
XRRFreeScreenResources(sr);
if (!mi)
{
_glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to query video mode");
return GLFW_FALSE;
}
}
else
{
@ -519,6 +526,8 @@ void _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode)
_glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
&mode->redBits, &mode->greenBits, &mode->blueBits);
}
return GLFW_TRUE;
}
GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp)

2
src/x11_platform.h
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@ -968,7 +968,7 @@ void _glfwGetMonitorPosX11(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleX11(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaX11(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count);
void _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);