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https://github.com/glfw/glfw.git
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Add content scale queries
This adds glfwGetWindowContentScale and glfwGetMonitorContentScale for querying the recommended drawing scale factor for DPI-aware rendering. Parts of this patch are based on code by @ferreiradaselva. Fixes #235. Fixes #439. Fixes #677. Fixes #845. Fixes #898.
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@ -136,6 +136,8 @@ information on what to include when reporting a bug.
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gamepad mapping (#900)
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- Added `glfwGetGamepadState` function, `GLFW_GAMEPAD_*` and `GLFWgamepadstate`
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for retrieving gamepad input state (#900)
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- Added `glfwGetWindowContentScale` and `glfwGetMonitorContentScale` for
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DPI-aware rendering (#235,#439,#677,#845,#898)
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- Added `glfwRequestWindowAttention` function for requesting attention from the
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user (#732,#988)
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- Added `glfwGetKeyScancode` function that allows retrieving platform dependent
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@ -131,17 +131,34 @@ current _resolution_, i.e. the width and height of its current
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[video mode](@ref monitor_modes).
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@code
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int widthMM, heightMM;
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glfwGetMonitorPhysicalSize(monitor, &widthMM, &heightMM);
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int width_mm, height_mm;
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glfwGetMonitorPhysicalSize(monitor, &width_mm, &height_mm);
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@endcode
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This can, for example, be used together with the current video mode to calculate
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the DPI of a monitor.
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While this can be used to calculate the raw DPI of a monitor, this is often not
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useful. Instead use the [monitor content scale](@ref monitor_scale) and
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[window content scale](@ref window_scale) to scale your content.
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@subsection monitor_scale Content scale
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The content scale for a monitor can be retrieved with @ref
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glfwGetMonitorContentScale.
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@code
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const double dpi = mode->width / (widthMM / 25.4);
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float xscale, yscale;
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glfwGetMonitorContentScale(monitor, &xscale, &yscale);
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@endcode
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The content scale is the ratio between the current DPI and the platform's
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default DPI. If you scale all pixel dimensions by this scale then your content
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should appear at an appropriate size. This is especially important for text and
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any UI elements.
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The content scale may depend on both the monitor resolution and pixel density
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and on user settings. It may be very different from the raw DPI calculated from
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the physical size and current resolution.
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@subsection monitor_pos Virtual position
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@ -58,6 +58,15 @@ windows with @ref glfwSetWindowAttrib.
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@see @ref window_attribs
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@subsection news_33_contentscale Content scale queries for DPI-aware rendering
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GLFW now supports querying the window and monitor content scale, i.e. the ratio
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between the current DPI and the platform's default DPI, with @ref
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glfwGetWindowContentScale and @ref glfwGetMonitorContentScale.
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@see @ref window_scale
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@subsection news_33_inithint Support for initialization hints
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GLFW now supports setting library initialization hints with @ref glfwInitHint
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@ -663,6 +663,26 @@ The size of a framebuffer may change independently of the size of a window, for
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example if the window is dragged between a regular monitor and a high-DPI one.
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@subsection window_scale Window content scale
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The content scale for a window can be retrieved with @ref
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glfwGetWindowContentScale.
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@code
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float xscale, yscale;
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glfwGetWindowContentScale(window, &xscale, &yscale);
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@endcode
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The content scale of a window is the ratio between the current DPI and the
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platform's default DPI. If you scale all pixel dimensions by this scale then
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your content should appear at an appropriate size. This is especially important
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for text and any UI elements.
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On systems where each monitors can have its own content scale, the window
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content scale will depend on which monitor the system considers the window to be
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on.
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@subsection window_sizelimits Window size limits
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The minimum and maximum size of the client area of a windowed mode window can be
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@ -1926,6 +1926,36 @@ GLFWAPI void glfwGetMonitorPos(GLFWmonitor* monitor, int* xpos, int* ypos);
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*/
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GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* monitor, int* widthMM, int* heightMM);
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/*! @brief Retrieves the content scale for the specified monitor.
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*
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* This function retrieves the content scale for the specified monitor. The
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* content scale is the ratio between the current DPI and the platform's
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* default DPI. If you scale all pixel dimensions by this scale then your
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* content should appear at an appropriate size. This is especially important
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* for text and any UI elements.
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*
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* The content scale may depend on both the monitor resolution and pixel
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* density and on user settings. It may be very different from the raw DPI
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* calculated from the physical size and current resolution.
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*
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* @param[in] monitor The monitor to query.
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* @param[out] xscale Where to store the x-axis content scale, or `NULL`.
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* @param[out] yscale Where to store the y-axis content scale, or `NULL`.
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*
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* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
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* GLFW_PLATFORM_ERROR.
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*
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* @thread_safety This function must only be called from the main thread.
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*
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* @sa @ref monitor_scale
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* @sa @ref glfwGetWindowContentScale
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*
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* @since Added in version 3.3.
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*
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* @ingroup monitor
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*/
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GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* monitor, float* xscale, float* yscale);
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/*! @brief Returns the name of the specified monitor.
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*
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* This function returns a human-readable name, encoded as UTF-8, of the
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@ -2774,6 +2804,36 @@ GLFWAPI void glfwGetFramebufferSize(GLFWwindow* window, int* width, int* height)
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*/
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GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* window, int* left, int* top, int* right, int* bottom);
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/*! @brief Retrieves the content scale for the specified window.
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*
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* This function retrieves the content scale for the specified window. The
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* content scale is the ratio between the current DPI and the platform's
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* default DPI. If you scale all pixel dimensions by this scale then your
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* content should appear at an appropriate size. This is especially important
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* for text and any UI elements.
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*
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* On systems where each monitors can have its own content scale, the window
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* content scale will depend on which monitor the system considers the window
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* to be on.
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*
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* @param[in] window The window to query.
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* @param[out] xscale Where to store the x-axis content scale, or `NULL`.
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* @param[out] yscale Where to store the y-axis content scale, or `NULL`.
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*
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* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
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* GLFW_PLATFORM_ERROR.
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*
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* @thread_safety This function must only be called from the main thread.
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*
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* @sa @ref window_scale
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* @sa @ref glfwGetMonitorContentScale
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*
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* @since Added in version 3.3.
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*
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* @ingroup window
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*/
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GLFWAPI void glfwGetWindowContentScale(GLFWwindow* window, float* xscale, float* yscale);
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/*! @brief Iconifies the specified window.
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*
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* This function iconifies (minimizes) the specified window if it was
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@ -229,6 +229,9 @@ void _glfwPollMonitorsNS(void)
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displays = calloc(displayCount, sizeof(CGDirectDisplayID));
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CGGetOnlineDisplayList(displayCount, displays, &displayCount);
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for (i = 0; i < _glfw.monitorCount; i++)
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_glfw.monitors[i]->ns.screen = nil;
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disconnectedCount = _glfw.monitorCount;
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if (disconnectedCount)
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{
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@ -371,6 +374,48 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
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*ypos = (int) bounds.origin.y;
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}
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void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
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float* xscale, float* yscale)
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{
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if (!monitor->ns.screen)
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{
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NSUInteger i;
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NSArray* screens = [NSScreen screens];
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for (i = 0; i < [screens count]; i++)
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{
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NSScreen* screen = [screens objectAtIndex:i];
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NSNumber* displayID =
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[[screen deviceDescription] objectForKey:@"NSScreenNumber"];
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// HACK: Compare unit numbers instead of display IDs to work around
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// display replacement on machines with automatic graphics
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// switching
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if (monitor->ns.unitNumber ==
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CGDisplayUnitNumber([displayID unsignedIntValue]))
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{
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monitor->ns.screen = screen;
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break;
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}
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}
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if (i == [screens count])
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"Cocoa: Failed to find a screen for monitor");
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return;
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}
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}
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const NSRect points = [monitor->ns.screen frame];
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const NSRect pixels = [monitor->ns.screen convertRectToBacking:points];
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if (xscale)
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*xscale = (float) (pixels.size.width / points.size.width);
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if (yscale)
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*yscale = (float) (pixels.size.height / points.size.height);
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}
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GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
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{
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CFArrayRef modes;
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@ -135,6 +135,7 @@ typedef struct _GLFWmonitorNS
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CGDirectDisplayID displayID;
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CGDisplayModeRef previousMode;
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uint32_t unitNumber;
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id screen;
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} _GLFWmonitorNS;
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@ -1288,6 +1288,18 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
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*bottom = contentRect.origin.y - frameRect.origin.y;
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}
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void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
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float* xscale, float* yscale)
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{
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const NSRect points = [window->ns.view frame];
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const NSRect pixels = [window->ns.view convertRectToBacking:points];
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if (xscale)
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*xscale = (float) (pixels.size.width / points.size.width);
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if (yscale)
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*yscale = (float) (pixels.size.height / points.size.height);
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}
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void _glfwPlatformIconifyWindow(_GLFWwindow* window)
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{
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[window->ns.object miniaturize:nil];
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@ -641,6 +641,7 @@ const char* _glfwPlatformGetScancodeName(int scancode);
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int _glfwPlatformGetKeyScancode(int key);
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void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos);
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void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor, float* xscale, float* yscale);
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GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count);
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void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode);
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
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@ -670,6 +671,7 @@ void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window, int minwidth, int min
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void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom);
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void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height);
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void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
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void _glfwPlatformGetWindowContentScale(_GLFWwindow* window, float* xscale, float* yscale);
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void _glfwPlatformIconifyWindow(_GLFWwindow* window);
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void _glfwPlatformRestoreWindow(_GLFWwindow* window);
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void _glfwPlatformMaximizeWindow(_GLFWwindow* window);
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@ -88,6 +88,15 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
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*ypos = monitor->mir.y;
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}
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void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
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float* xscale, float* yscale)
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{
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if (xscale)
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*xscale = 1.f;
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if (yscale)
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*yscale = 1.f;
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}
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static void FillInRGBBitsFromPixelFormat(GLFWvidmode* mode, const MirPixelFormat pf)
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{
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switch (pf)
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@ -515,6 +515,15 @@ void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
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*height = window->mir.height;
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}
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void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
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float* xscale, float* yscale)
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{
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if (xscale)
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*xscale = 1.f;
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if (yscale)
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*yscale = 1.f;
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}
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void _glfwPlatformIconifyWindow(_GLFWwindow* window)
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{
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MirWindowSpec* spec;
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@ -314,6 +314,21 @@ GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* handle, int* widthMM, int*
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*heightMM = monitor->heightMM;
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}
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GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* handle,
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float* xscale, float* yscale)
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{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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assert(monitor != NULL);
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if (xscale)
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*xscale = 0.f;
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if (yscale)
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*yscale = 0.f;
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_GLFW_REQUIRE_INIT();
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_glfwPlatformGetMonitorContentScale(monitor, xscale, yscale);
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}
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GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* handle)
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{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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@ -36,6 +36,15 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
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{
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}
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void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
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float* xscale, float* yscale)
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{
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if (xscale)
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*xscale = 1.f;
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if (yscale)
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*yscale = 1.f;
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}
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GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
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{
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return NULL;
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@ -139,6 +139,15 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
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{
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}
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void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
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float* xscale, float* yscale)
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{
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if (xscale)
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*xscale = 1.f;
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if (yscale)
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*yscale = 1.f;
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}
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void _glfwPlatformIconifyWindow(_GLFWwindow* window)
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{
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}
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@ -151,6 +151,8 @@ static GLFWbool loadLibraries(void)
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{
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_glfw.win32.shcore.SetProcessDpiAwareness_ = (PFN_SetProcessDpiAwareness)
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GetProcAddress(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
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_glfw.win32.shcore.GetDpiForMonitor_ = (PFN_GetDpiForMonitor)
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GetProcAddress(_glfw.win32.shcore.instance, "GetDpiForMonitor");
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}
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return GLFW_TRUE;
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@ -60,6 +60,7 @@ static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
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DISPLAY_DEVICEW* display)
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{
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_GLFWmonitor* monitor;
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int widthMM, heightMM;
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char* name;
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HDC dc;
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DEVMODEW dm;
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@ -72,13 +73,26 @@ static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
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if (!name)
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return NULL;
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ZeroMemory(&dm, sizeof(dm));
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dm.dmSize = sizeof(dm);
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EnumDisplaySettingsW(adapter->DeviceName, ENUM_CURRENT_SETTINGS, &dm);
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dc = CreateDCW(L"DISPLAY", adapter->DeviceName, NULL, NULL);
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monitor = _glfwAllocMonitor(name,
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GetDeviceCaps(dc, HORZSIZE),
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GetDeviceCaps(dc, VERTSIZE));
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if (IsWindows8Point1OrGreater())
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{
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widthMM = GetDeviceCaps(dc, HORZSIZE);
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heightMM = GetDeviceCaps(dc, VERTSIZE);
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}
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else
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{
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widthMM = (int) (dm.dmPelsWidth * 25.4f / GetDeviceCaps(dc, LOGPIXELSX));
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heightMM = (int) (dm.dmPelsHeight * 25.4f / GetDeviceCaps(dc, LOGPIXELSY));
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}
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DeleteDC(dc);
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monitor = _glfwAllocMonitor(name, widthMM, heightMM);
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free(name);
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if (adapter->StateFlags & DISPLAY_DEVICE_MODESPRUNED)
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@ -101,10 +115,6 @@ static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
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NULL, NULL);
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}
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ZeroMemory(&dm, sizeof(dm));
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dm.dmSize = sizeof(dm);
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EnumDisplaySettingsW(adapter->DeviceName, ENUM_CURRENT_SETTINGS, &dm);
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rect.left = dm.dmPosition.x;
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rect.top = dm.dmPosition.y;
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rect.right = dm.dmPosition.x + dm.dmPelsWidth;
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@ -302,6 +312,26 @@ void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor)
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}
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}
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void _glfwGetMonitorContentScaleWin32(HMONITOR handle, float* xscale, float* yscale)
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{
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UINT xdpi, ydpi;
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if (IsWindows8Point1OrGreater())
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GetDpiForMonitor(handle, MDT_EFFECTIVE_DPI, &xdpi, &ydpi);
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else
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{
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const HDC dc = GetDC(NULL);
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xdpi = GetDeviceCaps(dc, LOGPIXELSX);
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ydpi = GetDeviceCaps(dc, LOGPIXELSY);
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ReleaseDC(NULL, dc);
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}
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if (xscale)
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*xscale = xdpi / 96.f;
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if (yscale)
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*yscale = ydpi / 96.f;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW platform API //////
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@ -324,6 +354,12 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
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*ypos = dm.dmPosition.y;
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}
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void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
|
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float* xscale, float* yscale)
|
||||
{
|
||||
_glfwGetMonitorContentScaleWin32(monitor->win32.handle, xscale, yscale);
|
||||
}
|
||||
|
||||
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
|
||||
{
|
||||
int modeIndex = 0, size = 0;
|
||||
|
@ -135,6 +135,13 @@ typedef enum PROCESS_DPI_AWARENESS
|
||||
PROCESS_SYSTEM_DPI_AWARE = 1,
|
||||
PROCESS_PER_MONITOR_DPI_AWARE = 2
|
||||
} PROCESS_DPI_AWARENESS;
|
||||
typedef enum MONITOR_DPI_TYPE
|
||||
{
|
||||
MDT_EFFECTIVE_DPI = 0,
|
||||
MDT_ANGULAR_DPI = 1,
|
||||
MDT_RAW_DPI = 2,
|
||||
MDT_DEFAULT = MDT_EFFECTIVE_DPI
|
||||
} MONITOR_DPI_TYPE;
|
||||
#endif /*DPI_ENUMS_DECLARED*/
|
||||
|
||||
// HACK: Define versionhelpers.h functions manually as MinGW lacks the header
|
||||
@ -216,7 +223,9 @@ typedef HRESULT(WINAPI * PFN_DwmEnableBlurBehindWindow)(HWND,const DWM_BLURBEHIN
|
||||
|
||||
// shcore.dll function pointer typedefs
|
||||
typedef HRESULT (WINAPI * PFN_SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS);
|
||||
typedef HRESULT (WINAPI * PFN_GetDpiForMonitor)(HMONITOR,MONITOR_DPI_TYPE,UINT*,UINT*);
|
||||
#define SetProcessDpiAwareness _glfw.win32.shcore.SetProcessDpiAwareness_
|
||||
#define GetDpiForMonitor _glfw.win32.shcore.GetDpiForMonitor_
|
||||
|
||||
typedef VkFlags VkWin32SurfaceCreateFlagsKHR;
|
||||
|
||||
@ -326,6 +335,7 @@ typedef struct _GLFWlibraryWin32
|
||||
struct {
|
||||
HINSTANCE instance;
|
||||
PFN_SetProcessDpiAwareness SetProcessDpiAwareness_;
|
||||
PFN_GetDpiForMonitor GetDpiForMonitor_;
|
||||
} shcore;
|
||||
|
||||
} _GLFWlibraryWin32;
|
||||
@ -395,4 +405,5 @@ void _glfwInitTimerWin32(void);
|
||||
void _glfwPollMonitorsWin32(void);
|
||||
GLFWbool _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired);
|
||||
void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor);
|
||||
void _glfwGetMonitorContentScaleWin32(HMONITOR handle, float* xscale, float* yscale);
|
||||
|
||||
|
@ -983,19 +983,6 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
|
||||
break;
|
||||
}
|
||||
|
||||
case WM_DPICHANGED:
|
||||
{
|
||||
RECT* rect = (RECT*) lParam;
|
||||
SetWindowPos(window->win32.handle,
|
||||
HWND_TOP,
|
||||
rect->left,
|
||||
rect->top,
|
||||
rect->right - rect->left,
|
||||
rect->bottom - rect->top,
|
||||
SWP_NOACTIVATE | SWP_NOZORDER);
|
||||
break;
|
||||
}
|
||||
|
||||
case WM_DROPFILES:
|
||||
{
|
||||
HDROP drop = (HDROP) wParam;
|
||||
@ -1415,6 +1402,14 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
|
||||
*bottom = rect.bottom - height;
|
||||
}
|
||||
|
||||
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
const HANDLE handle = MonitorFromWindow(window->win32.handle,
|
||||
MONITOR_DEFAULTTONEAREST);
|
||||
_glfwGetMonitorContentScaleWin32(handle, xscale, yscale);
|
||||
}
|
||||
|
||||
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
|
||||
{
|
||||
ShowWindow(window->win32.handle, SW_MINIMIZE);
|
||||
|
15
src/window.c
15
src/window.c
@ -632,6 +632,21 @@ GLFWAPI void glfwGetWindowFrameSize(GLFWwindow* handle,
|
||||
_glfwPlatformGetWindowFrameSize(window, left, top, right, bottom);
|
||||
}
|
||||
|
||||
GLFWAPI void glfwGetWindowContentScale(GLFWwindow* handle,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
_GLFWwindow* window = (_GLFWwindow*) handle;
|
||||
assert(window != NULL);
|
||||
|
||||
if (xscale)
|
||||
*xscale = 0.f;
|
||||
if (yscale)
|
||||
*yscale = 0.f;
|
||||
|
||||
_GLFW_REQUIRE_INIT();
|
||||
_glfwPlatformGetWindowContentScale(window, xscale, yscale);
|
||||
}
|
||||
|
||||
GLFWAPI void glfwIconifyWindow(GLFWwindow* handle)
|
||||
{
|
||||
_GLFWwindow* window = (_GLFWwindow*) handle;
|
||||
|
@ -153,6 +153,15 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
|
||||
*ypos = monitor->wl.y;
|
||||
}
|
||||
|
||||
void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
if (xscale)
|
||||
*xscale = (float) monitor->wl.scale;
|
||||
if (yscale)
|
||||
*yscale = (float) monitor->wl.scale;
|
||||
}
|
||||
|
||||
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* found)
|
||||
{
|
||||
*found = monitor->modeCount;
|
||||
|
@ -550,6 +550,15 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
|
||||
// implemented, but for now just leave everything as 0.
|
||||
}
|
||||
|
||||
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
if (xscale)
|
||||
*xscale = (float) window->wl.scale;
|
||||
if (yscale)
|
||||
*yscale = (float) window->wl.scale;
|
||||
}
|
||||
|
||||
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
|
||||
{
|
||||
// TODO: move to xdg_shell instead of wl_shell.
|
||||
|
@ -743,6 +743,43 @@ static GLFWbool initExtensions(void)
|
||||
return GLFW_TRUE;
|
||||
}
|
||||
|
||||
// Retrieve system content scale via folklore heuristics
|
||||
//
|
||||
static void getSystemContentScale(float* xscale, float* yscale)
|
||||
{
|
||||
// NOTE: Default to the display-wide DPI as we don't currently have a policy
|
||||
// for which monitor a window is considered to be on
|
||||
float xdpi = DisplayWidth(_glfw.x11.display, _glfw.x11.screen) *
|
||||
25.4f / DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen);
|
||||
float ydpi = DisplayHeight(_glfw.x11.display, _glfw.x11.screen) *
|
||||
25.4f / DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen);
|
||||
|
||||
// NOTE: Basing the scale on Xft.dpi where available should provide the most
|
||||
// consistent user experience (matches Qt, Gtk, etc), although not
|
||||
// always the most accurate one
|
||||
char* rms = XResourceManagerString(_glfw.x11.display);
|
||||
if (rms)
|
||||
{
|
||||
XrmDatabase db = XrmGetStringDatabase(rms);
|
||||
if (db)
|
||||
{
|
||||
XrmValue value;
|
||||
char* type = NULL;
|
||||
|
||||
if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value))
|
||||
{
|
||||
if (type && strcmp(type, "String") == 0)
|
||||
xdpi = ydpi = atof(value.addr);
|
||||
}
|
||||
|
||||
XrmDestroyDatabase(db);
|
||||
}
|
||||
}
|
||||
|
||||
*xscale = xdpi / 96.f;
|
||||
*yscale = ydpi / 96.f;
|
||||
}
|
||||
|
||||
// Create a blank cursor for hidden and disabled cursor modes
|
||||
//
|
||||
static Cursor createHiddenCursor(void)
|
||||
@ -861,6 +898,7 @@ int _glfwPlatformInit(void)
|
||||
#endif
|
||||
|
||||
XInitThreads();
|
||||
XrmInitialize();
|
||||
|
||||
_glfw.x11.display = XOpenDisplay(NULL);
|
||||
if (!_glfw.x11.display)
|
||||
@ -884,6 +922,8 @@ int _glfwPlatformInit(void)
|
||||
_glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
|
||||
_glfw.x11.context = XUniqueContext();
|
||||
|
||||
getSystemContentScale(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY);
|
||||
|
||||
if (!initExtensions())
|
||||
return GLFW_FALSE;
|
||||
|
||||
|
@ -338,6 +338,15 @@ void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos)
|
||||
}
|
||||
}
|
||||
|
||||
void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
if (xscale)
|
||||
*xscale = _glfw.x11.contentScaleX;
|
||||
if (yscale)
|
||||
*yscale = _glfw.x11.contentScaleY;
|
||||
}
|
||||
|
||||
GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)
|
||||
{
|
||||
GLFWvidmode* result;
|
||||
|
@ -211,6 +211,8 @@ typedef struct _GLFWlibraryX11
|
||||
int screen;
|
||||
Window root;
|
||||
|
||||
// System content scale
|
||||
float contentScaleX, contentScaleY;
|
||||
// Helper window for IPC
|
||||
Window helperWindowHandle;
|
||||
// Invisible cursor for hidden cursor mode
|
||||
|
@ -2240,6 +2240,15 @@ void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
|
||||
XFree(extents);
|
||||
}
|
||||
|
||||
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
|
||||
float* xscale, float* yscale)
|
||||
{
|
||||
if (xscale)
|
||||
*xscale = _glfw.x11.contentScaleX;
|
||||
if (yscale)
|
||||
*yscale = _glfw.x11.contentScaleY;
|
||||
}
|
||||
|
||||
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
|
||||
{
|
||||
if (window->x11.overrideRedirect)
|
||||
|
@ -92,21 +92,24 @@ static void key_callback(GLFWwindow* window, int key, int scancode, int action,
|
||||
|
||||
static void list_modes(GLFWmonitor* monitor)
|
||||
{
|
||||
int count, x, y, widthMM, heightMM, i;
|
||||
int count, x, y, width_mm, height_mm, i;
|
||||
float xscale, yscale;
|
||||
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
|
||||
const GLFWvidmode* modes = glfwGetVideoModes(monitor, &count);
|
||||
|
||||
glfwGetMonitorPos(monitor, &x, &y);
|
||||
glfwGetMonitorPhysicalSize(monitor, &widthMM, &heightMM);
|
||||
glfwGetMonitorPhysicalSize(monitor, &width_mm, &height_mm);
|
||||
glfwGetMonitorContentScale(monitor, &xscale, &yscale);
|
||||
|
||||
printf("Name: %s (%s)\n",
|
||||
glfwGetMonitorName(monitor),
|
||||
glfwGetPrimaryMonitor() == monitor ? "primary" : "secondary");
|
||||
printf("Current mode: %s\n", format_mode(mode));
|
||||
printf("Virtual position: %i %i\n", x, y);
|
||||
printf("Content scale: %f %f\n", xscale, yscale);
|
||||
|
||||
printf("Physical size: %i x %i mm (%0.2f dpi)\n",
|
||||
widthMM, heightMM, mode->width * 25.4f / widthMM);
|
||||
width_mm, height_mm, mode->width * 25.4f / width_mm);
|
||||
|
||||
printf("Modes:\n");
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user