mirror of
https://github.com/glfw/glfw.git
synced 2024-11-10 00:51:47 +00:00
Made gamma ramp functions per-monitor.
This commit is contained in:
parent
20ccf0bc60
commit
92a71e07d3
@ -883,27 +883,28 @@ GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* monitor, int* count);
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*/
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GLFWAPI GLFWvidmode glfwGetVideoMode(GLFWmonitor* monitor);
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/*! @brief Sets the system gamma ramp for all connected monitors to one
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* generated from the specified exponent.
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/*! @brief Generates a gamma ramp and sets it for the specified monitor.
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* @param[in] monitor The monitor whose gamma ramp to set.
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* @param[in] gamma The desired exponent.
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* @ingroup gamma
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*
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* @remarks This is a helper function layered on top of @ref glfwSetGammaRamp.
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* @remarks This is a helper function on top of @ref glfwSetGammaRamp.
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*/
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GLFWAPI void glfwSetGamma(float gamma);
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GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma);
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/*! @brief Retrieves the current system gamma ramp.
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/*! @brief Retrieves the current gamma ramp for the specified monitor.
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* @param[in] monitor The monitor to query.
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* @param[out] ramp Where to store the gamma ramp.
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* @ingroup gamma
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*/
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GLFWAPI void glfwGetGammaRamp(GLFWgammaramp* ramp);
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GLFWAPI void glfwGetGammaRamp(GLFWmonitor* monitor, GLFWgammaramp* ramp);
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/*! @brief Sets the system gamma ramp for all connected monitors to the one
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* specified.
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/*! @brief Sets the gamma ramp for the specified monitor.
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* @param[in] monitor The monitor whose gamma ramp to set.
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* @param[in] ramp The gamma ramp to use.
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* @ingroup gamma
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*/
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GLFWAPI void glfwSetGammaRamp(const GLFWgammaramp* ramp);
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GLFWAPI void glfwSetGammaRamp(GLFWmonitor* monitor, const GLFWgammaramp* ramp);
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/*! @brief Resets all window hints to their default values
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*
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@ -39,19 +39,27 @@
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
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{
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// TODO: Support ramp sizes other than 256
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uint32_t sampleCount;
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int i;
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CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
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CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
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CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
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// For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
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if (_glfw.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
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if (CGDisplayGammaTableCapacity(monitor->ns.displayID) !=
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GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"Cocoa: Only gamma ramps of size 256 supported");
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return;
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}
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CGGetDisplayTransferByTable(CGMainDisplayID(), GLFW_GAMMA_RAMP_SIZE, red, green, blue,
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CGGetDisplayTransferByTable(monitor->ns.displayID,
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GLFW_GAMMA_RAMP_SIZE,
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red, green, blue,
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&sampleCount);
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for (i = 0; i < GLFW_GAMMA_RAMP_SIZE; i++)
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@ -62,17 +70,23 @@ void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
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}
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}
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void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
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{
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// TODO: Support ramp sizes other than 256
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int i;
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int size = GLFW_GAMMA_RAMP_SIZE;
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CGGammaValue red[GLFW_GAMMA_RAMP_SIZE];
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CGGammaValue green[GLFW_GAMMA_RAMP_SIZE];
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CGGammaValue blue[GLFW_GAMMA_RAMP_SIZE];
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// For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
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if (_glfw.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
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if (CGDisplayGammaTableCapacity(monitor->ns.displayID) !=
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GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"Cocoa: Only gamma ramps of size 256 supported");
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return;
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}
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// Convert to float & take the difference of the original gamma and
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// the linear function.
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@ -83,6 +97,8 @@ void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
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blue[i] = ramp->blue[i] / 65535.f;
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}
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CGSetDisplayTransferByTable(CGMainDisplayID(), GLFW_GAMMA_RAMP_SIZE, red, green, blue);
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CGSetDisplayTransferByTable(monitor->ns.displayID,
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GLFW_GAMMA_RAMP_SIZE,
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red, green, blue);
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}
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@ -93,10 +93,6 @@ int _glfwPlatformInit(void)
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changeToResourcesDirectory();
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#endif
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// Save the original gamma ramp
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_glfw.originalRampSize = CGDisplayGammaTableCapacity(CGMainDisplayID());
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_glfwPlatformGetGammaRamp(&_glfw.originalRamp);
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_glfwInitTimer();
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_glfwInitJoysticks();
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@ -123,10 +119,6 @@ void _glfwPlatformTerminate(void)
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_glfw.ns.eventSource = NULL;
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}
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// Restore the original gamma ramp
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if (_glfw.rampChanged)
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_glfwPlatformSetGammaRamp(&_glfw.originalRamp);
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[NSApp setDelegate:nil];
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[_glfw.ns.delegate release];
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_glfw.ns.delegate = nil;
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23
src/gamma.c
23
src/gamma.c
@ -37,7 +37,7 @@
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWAPI void glfwSetGamma(float gamma)
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GLFWAPI void glfwSetGamma(GLFWmonitor* handle, float gamma)
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{
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int i, size = GLFW_GAMMA_RAMP_SIZE;
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GLFWgammaramp ramp;
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@ -75,29 +75,38 @@ GLFWAPI void glfwSetGamma(float gamma)
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ramp.blue[i] = (unsigned short) value;
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}
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glfwSetGammaRamp(&ramp);
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glfwSetGammaRamp(handle, &ramp);
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}
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GLFWAPI void glfwGetGammaRamp(GLFWgammaramp* ramp)
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GLFWAPI void glfwGetGammaRamp(GLFWmonitor* handle, GLFWgammaramp* ramp)
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{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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if (!_glfwInitialized)
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{
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_glfwInputError(GLFW_NOT_INITIALIZED, NULL);
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return;
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}
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_glfwPlatformGetGammaRamp(ramp);
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_glfwPlatformGetGammaRamp(monitor, ramp);
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}
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GLFWAPI void glfwSetGammaRamp(const GLFWgammaramp* ramp)
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GLFWAPI void glfwSetGammaRamp(GLFWmonitor* handle, const GLFWgammaramp* ramp)
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{
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_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
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if (!_glfwInitialized)
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{
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_glfwInputError(GLFW_NOT_INITIALIZED, NULL);
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return;
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}
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_glfwPlatformSetGammaRamp(ramp);
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_glfw.rampChanged = GL_TRUE;
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if (!monitor->rampChanged)
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{
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_glfwPlatformGetGammaRamp(monitor, &monitor->originalRamp);
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monitor->rampChanged = GL_TRUE;
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}
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_glfwPlatformSetGammaRamp(monitor, ramp);
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}
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@ -150,6 +150,8 @@ GLFWAPI int glfwInit(void)
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GLFWAPI void glfwTerminate(void)
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{
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int i;
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if (!_glfwInitialized)
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return;
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@ -157,6 +159,13 @@ GLFWAPI void glfwTerminate(void)
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while (_glfw.windowListHead)
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glfwDestroyWindow((GLFWwindow*) _glfw.windowListHead);
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for (i = 0; i < _glfw.monitorCount; i++)
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{
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_GLFWmonitor* monitor = _glfw.monitors[i];
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if (monitor->rampChanged)
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_glfwPlatformSetGammaRamp(monitor, &monitor->originalRamp);
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}
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_glfwDestroyMonitors();
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_glfwPlatformTerminate();
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@ -267,6 +267,9 @@ struct _GLFWmonitor
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GLFWvidmode* modes;
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int modeCount;
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GLFWgammaramp originalRamp;
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GLboolean rampChanged;
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// This is defined in the window API's platform.h
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_GLFW_PLATFORM_MONITOR_STATE;
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};
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@ -285,10 +288,6 @@ struct _GLFWlibrary
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int monitorCount;
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GLFWmonitorfun monitorCallback;
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GLFWgammaramp originalRamp;
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int originalRampSize;
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GLboolean rampChanged;
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// This is defined in the window API's platform.h
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_GLFW_PLATFORM_LIBRARY_WINDOW_STATE;
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// This is defined in the context API's platform.h
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@ -376,17 +375,19 @@ GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count);
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*/
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void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode);
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/*! @brief Returns the current system gamma ramp.
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/*! @brief Retrieves the current gamma ramp for the specified monitor.
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* @param[in] monitor The monitor to query.
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* @param[out] ramp The current system gamma ramp.
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* @ingroup platform
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*/
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void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp);
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
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/*! @brief Sets the system gamma ramp.
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/*! @brief Sets the gamma ramp for the specified monitor.
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* @param[in] monitor The monitor whose gamma ramp to set.
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* @param[in] ramp The desired system gamma ramp.
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* @ingroup platform
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*/
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void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp);
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
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/*! @brief Sets the system clipboard to the specified string.
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* @param[in] window The window who will own the system clipboard contents, on
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@ -36,13 +36,31 @@
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
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{
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GetDeviceGammaRamp(GetDC(GetDesktopWindow()), (WORD*) ramp);
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HDC dc;
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DISPLAY_DEVICE display;
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ZeroMemory(&display, sizeof(DISPLAY_DEVICE));
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display.cb = sizeof(DISPLAY_DEVICE);
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EnumDisplayDevices(monitor->win32.name, 0, &display, 0);
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dc = CreateDC(L"DISPLAY", display.DeviceString, NULL, NULL);
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GetDeviceGammaRamp(dc, (WORD*) ramp);
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DeleteDC(dc);
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}
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void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
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{
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SetDeviceGammaRamp(GetDC(GetDesktopWindow()), (WORD*) ramp);
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HDC dc;
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DISPLAY_DEVICE display;
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ZeroMemory(&display, sizeof(DISPLAY_DEVICE));
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display.cb = sizeof(DISPLAY_DEVICE);
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EnumDisplayDevices(monitor->win32.name, 0, &display, 0);
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dc = CreateDC(L"DISPLAY", display.DeviceString, NULL, NULL);
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SetDeviceGammaRamp(dc, (WORD*) ramp);
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DeleteDC(dc);
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}
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@ -168,10 +168,6 @@ int _glfwPlatformInit(void)
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_control87(MCW_EM, MCW_EM);
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#endif
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// Save the original gamma ramp
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_glfw.originalRampSize = 256;
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_glfwPlatformGetGammaRamp(&_glfw.originalRamp);
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if (!_glfwInitContextAPI())
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return GL_FALSE;
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@ -184,10 +180,6 @@ int _glfwPlatformInit(void)
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void _glfwPlatformTerminate(void)
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{
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// Restore the original gamma ramp
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if (_glfw.rampChanged)
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_glfwPlatformSetGammaRamp(&_glfw.originalRamp);
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if (_glfw.win32.classAtom)
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{
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UnregisterClass(_GLFW_WNDCLASSNAME, GetModuleHandle(NULL));
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118
src/x11_gamma.c
118
src/x11_gamma.c
@ -37,7 +37,7 @@
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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// Detect gamma ramp support and save original gamma ramp, if available
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// Detect gamma ramp support
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//
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void _glfwInitGammaRamp(void)
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{
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@ -54,9 +54,7 @@ void _glfwInitGammaRamp(void)
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XRRScreenResources* rr = XRRGetScreenResources(_glfw.x11.display,
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_glfw.x11.root);
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_glfw.originalRampSize = XRRGetCrtcGammaSize(_glfw.x11.display,
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rr->crtcs[0]);
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if (_glfw.originalRampSize == 0)
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if (XRRGetCrtcGammaSize(_glfw.x11.display, rr->crtcs[0]))
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{
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// This is probably older Nvidia RandR with broken gamma support
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// Flag it as useless and try Xf86VidMode below, if available
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@ -65,28 +63,6 @@ void _glfwInitGammaRamp(void)
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XRRFreeScreenResources(rr);
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}
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if (_glfw.x11.vidmode.available && !_glfw.originalRampSize)
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{
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// Get the gamma size using XF86VidMode
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XF86VidModeGetGammaRampSize(_glfw.x11.display,
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_glfw.x11.screen,
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&_glfw.originalRampSize);
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}
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if (_glfw.originalRampSize)
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{
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// Save the original gamma ramp
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_glfwPlatformGetGammaRamp(&_glfw.originalRamp);
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}
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}
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// Restore original gamma ramp if necessary
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//
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void _glfwTerminateGammaRamp(void)
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{
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if (_glfw.originalRampSize && _glfw.rampChanged)
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_glfwPlatformSetGammaRamp(&_glfw.originalRamp);
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}
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@ -94,83 +70,85 @@ void _glfwTerminateGammaRamp(void)
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////// GLFW platform API //////
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//////////////////////////////////////////////////////////////////////////
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void _glfwPlatformGetGammaRamp(GLFWgammaramp* ramp)
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void _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
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{
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// For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
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if (_glfw.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Failed to get gamma ramp due to size "
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"incompatibility");
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return;
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}
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// TODO: Support ramp sizes other than 256
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if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
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{
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XRRCrtcGamma* gamma;
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size_t size = GLFW_GAMMA_RAMP_SIZE * sizeof(unsigned short);
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XRRScreenResources* rr = XRRGetScreenResources(_glfw.x11.display,
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_glfw.x11.root);
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if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) !=
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GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Only gamma ramps of size 256 supported");
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return;
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}
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XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
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rr->crtcs[0]);
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// TODO: Handle case of original ramp size having a size other than 256
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gamma = XRRGetCrtcGamma(_glfw.x11.display, monitor->x11.crtc);
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memcpy(ramp->red, gamma->red, size);
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memcpy(ramp->green, gamma->green, size);
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memcpy(ramp->blue, gamma->blue, size);
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XRRFreeGamma(gamma);
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XRRFreeScreenResources(rr);
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}
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else if (_glfw.x11.vidmode.available)
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{
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int size;
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XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
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if (size != GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Only gamma ramps of size 256 supported");
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return;
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}
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XF86VidModeGetGammaRamp(_glfw.x11.display,
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_glfw.x11.screen,
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GLFW_GAMMA_RAMP_SIZE,
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ramp->red,
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ramp->green,
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ramp->blue);
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ramp->red, ramp->green, ramp->blue);
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}
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}
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void _glfwPlatformSetGammaRamp(const GLFWgammaramp* ramp)
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void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
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{
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// For now, don't support anything that is not GLFW_GAMMA_RAMP_SIZE
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if (_glfw.originalRampSize != GLFW_GAMMA_RAMP_SIZE)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Failed to set gamma ramp due to size "
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"incompatibility");
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return;
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}
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if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
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{
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int i;
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size_t size = GLFW_GAMMA_RAMP_SIZE * sizeof(unsigned short);
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XRRCrtcGamma* gamma;
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XRRScreenResources* rr = XRRGetScreenResources(_glfw.x11.display,
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_glfw.x11.root);
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// Update gamma per monitor
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for (i = 0; i < rr->ncrtc; i++)
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if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) !=
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GLFW_GAMMA_RAMP_SIZE)
|
||||
{
|
||||
XRRCrtcGamma* gamma = XRRAllocGamma(GLFW_GAMMA_RAMP_SIZE);
|
||||
|
||||
memcpy(gamma->red, ramp->red, size);
|
||||
memcpy(gamma->green, ramp->green, size);
|
||||
memcpy(gamma->blue, ramp->blue, size);
|
||||
|
||||
XRRSetCrtcGamma(_glfw.x11.display, rr->crtcs[i], gamma);
|
||||
XRRFreeGamma(gamma);
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"X11: Only gamma ramps of size 256 supported");
|
||||
return;
|
||||
}
|
||||
|
||||
XRRFreeScreenResources(rr);
|
||||
gamma = XRRAllocGamma(GLFW_GAMMA_RAMP_SIZE);
|
||||
|
||||
memcpy(gamma->red, ramp->red, size);
|
||||
memcpy(gamma->green, ramp->green, size);
|
||||
memcpy(gamma->blue, ramp->blue, size);
|
||||
|
||||
XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma);
|
||||
}
|
||||
else if (_glfw.x11.vidmode.available)
|
||||
{
|
||||
int size;
|
||||
XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
|
||||
|
||||
if (size != GLFW_GAMMA_RAMP_SIZE)
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"X11: Only gamma ramps of size 256 supported");
|
||||
return;
|
||||
}
|
||||
|
||||
XF86VidModeSetGammaRamp(_glfw.x11.display,
|
||||
_glfw.x11.screen,
|
||||
GLFW_GAMMA_RAMP_SIZE,
|
||||
|
@ -603,8 +603,6 @@ void _glfwPlatformTerminate(void)
|
||||
_glfw.x11.cursor = (Cursor) 0;
|
||||
}
|
||||
|
||||
_glfwTerminateGammaRamp();
|
||||
|
||||
_glfwTerminateJoysticks();
|
||||
|
||||
_glfwTerminateContextAPI();
|
||||
|
@ -210,7 +210,6 @@ void _glfwInitTimer(void);
|
||||
|
||||
// Gamma
|
||||
void _glfwInitGammaRamp(void);
|
||||
void _glfwTerminateGammaRamp(void);
|
||||
|
||||
// OpenGL support
|
||||
int _glfwInitContextAPI(void);
|
||||
|
@ -49,7 +49,7 @@ static void set_gamma(float value)
|
||||
{
|
||||
gamma_value = value;
|
||||
printf("Gamma: %f\n", gamma_value);
|
||||
glfwSetGamma(gamma_value);
|
||||
glfwSetGamma(glfwGetPrimaryMonitor(), gamma_value);
|
||||
}
|
||||
|
||||
static void error_callback(int error, const char* description)
|
||||
|
Loading…
Reference in New Issue
Block a user