mirror of
https://github.com/gwm17/glfw.git
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Started adding documentation for internal APIs.
This commit is contained in:
Camilla Berglund
parent
d1132cb3d1
commit
3817771a40
10
src/init.c
10
src/init.c
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@ -37,16 +37,10 @@
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//------------------------------------------------------------------------
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// Flag indicating whether GLFW has been successfully initialized
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// Global state shared between compilation units of GLFW
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// These are documented in internal.h
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//------------------------------------------------------------------------
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GLboolean _glfwInitialized = GL_FALSE;
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//------------------------------------------------------------------------
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// All shared and API-specific global data protected by _glfwInitialized
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// This should only be touched after a call to glfwInit that has not been
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// followed by a call to glfwTerminate
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//------------------------------------------------------------------------
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_GLFWlibrary _glfw;
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454
src/internal.h
454
src/internal.h
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@ -32,6 +32,33 @@
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#define _internal_h_
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//========================================================================
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// Doxygen group definitions
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//========================================================================
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/*! @defgroup platform Platform API
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* @brief The API implemented by the platform-specific code.
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*
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* The platform API is the interface exposed by the platform-specific code for
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* each platform and is called by the shared code of the public API It mirrors
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* the public API except it uses objects instead of handles.
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*/
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/*! @defgroup event Event API
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* @brief The API used by the platform-specific code to report events.
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*
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* The event API is used by the platform-specific code to notify the shared
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* code of events that can be translated into state changes and/or callback
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* calls.
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*/
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/*! @defgroup utility Utility functions
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* @brief Various utility functions.
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*
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* These functions are shared code and may be used by any part of GLFW
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* Each platform may add its own utility functions, but those may only be
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* called by the platform-specific code
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*/
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//========================================================================
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// Input handling definitions
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//========================================================================
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@ -52,11 +79,6 @@ typedef struct _GLFWlibrary _GLFWlibrary;
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typedef struct _GLFWmonitor _GLFWmonitor;
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//------------------------------------------------------------------------
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// Platform specific definitions goes in platform.h (which also includes
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// glfw.h)
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//------------------------------------------------------------------------
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#include "config.h"
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// Disable the inclusion of the platform glext.h by gl.h to allow proper
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@ -81,12 +103,15 @@ typedef struct _GLFWmonitor _GLFWmonitor;
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#endif
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//------------------------------------------------------------------------
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// Window hints, set by glfwWindowHint and consumed by glfwCreateWindow
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// A bucket of semi-random stuff lumped together for historical reasons
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// This is used only by the platform independent code and only to store
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// parameters passed to us by glfwWindowHint
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//------------------------------------------------------------------------
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//========================================================================
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// Internal type definitions
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//========================================================================
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/*! @brief Window, framebuffer and context hints.
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*
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* It is used only by shared code and only to store parameters passed to us by
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* @ref glfwWindowHint for use by @ref glfwCreateWindow.
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*/
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struct _GLFWhints
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{
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int redBits;
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@ -117,12 +142,12 @@ struct _GLFWhints
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};
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//------------------------------------------------------------------------
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// Parameters relating to the creation of the context and window but not
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// directly related to the properties of the framebuffer
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// This is used to pass window and context creation parameters from the
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// platform independent code to the platform specific code
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//------------------------------------------------------------------------
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/*! @brief Window and context configuration.
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*
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* Parameters relating to the creation of the context and window but not
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* directly related to the framebuffer. This is used to pass window and
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* context creation parameters from shared code to the platform API.
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*/
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struct _GLFWwndconfig
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{
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const char* title;
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@ -142,13 +167,14 @@ struct _GLFWwndconfig
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};
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//------------------------------------------------------------------------
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// Framebuffer configuration descriptor, i.e. buffers and their sizes
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// Also a platform specific ID used to map back to the actual backend APIs
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// This is used to pass framebuffer parameters from the platform independent
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// code to the platform specific code, and also to enumerate and select
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// available framebuffer configurations
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//------------------------------------------------------------------------
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/*! @brief Framebuffer configuration.
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*
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* This describes buffers and their sizes. It also contains
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* a platform-specific ID used to map back to the backend API's object.
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*
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* It is used to pass framebuffer parameters from shared code to the
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* platform API and also to enumerate and select available framebuffer configs.
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*/
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struct _GLFWfbconfig
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{
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int redBits;
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@ -169,9 +195,8 @@ struct _GLFWfbconfig
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};
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//------------------------------------------------------------------------
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// Window structure
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//------------------------------------------------------------------------
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/*! @brief Window and context structure.
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*/
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struct _GLFWwindow
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{
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struct _GLFWwindow* next;
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@ -216,15 +241,15 @@ struct _GLFWwindow
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GLFWkeyfun keyCallback;
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GLFWcharfun charCallback;
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// These are defined in the current port's platform.h
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// This is defined in the window API's platform.h
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_GLFW_PLATFORM_WINDOW_STATE;
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// This is defined in the context API's platform.h
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_GLFW_PLATFORM_CONTEXT_STATE;
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};
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//------------------------------------------------------------------------
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// Display structure
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//------------------------------------------------------------------------
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/*! @brief Monitor structure.
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*/
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struct _GLFWmonitor
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{
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char* name;
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@ -241,13 +266,13 @@ struct _GLFWmonitor
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GLFWvidmode* modes;
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int modeCount;
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// These are defined in the current port's platform.h
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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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//------------------------------------------------------------------------
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// Library global data
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//------------------------------------------------------------------------
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/*! @brief Library global data.
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*/
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struct _GLFWlibrary
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{
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_GLFWhints hints;
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@ -264,145 +289,432 @@ struct _GLFWlibrary
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int originalRampSize;
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GLboolean rampChanged;
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// This is defined in the current port's platform.h
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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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_GLFW_PLATFORM_LIBRARY_OPENGL_STATE;
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};
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//------------------------------------------------------------------------
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//========================================================================
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// Global state shared between compilation units of GLFW
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// These are exported from and documented in init.c
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//------------------------------------------------------------------------
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//========================================================================
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/*! @brief Flag indicating whether GLFW has been successfully initialized.
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*/
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extern GLboolean _glfwInitialized;
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/*! @brief All global data protected by @ref _glfwInitialized.
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* This should only be touched after a call to @ref glfwInit that has not been
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* followed by a call to @ref glfwTerminate.
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*/
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extern _GLFWlibrary _glfw;
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//========================================================================
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// Prototypes for the platform API
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// This is the interface exposed by the platform-specific code for each
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// platform and is called by the shared code of the public API
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// It mirrors the public API except it uses objects instead of handles
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// Platform API functions
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//========================================================================
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// Platform init and version
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/*! @brief Initializes the platform-specific part of the library.
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* @return @c GL_TRUE if successful, or @c GL_FALSE if an error occurred.
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* @ingroup platform
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*/
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int _glfwPlatformInit(void);
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/*! @brief Terminates the platform-specific part of the library.
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* @ingroup platform
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*/
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void _glfwPlatformTerminate(void);
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/*! @brief Returns a string describing the compile-time configuration of the
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* platform-specific part of the library.
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* @return The version string.
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* @ingroup platform
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*
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* The format of the string is as follows:
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* @arg The name of the window system API used
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* @arg The name of the context creation API used
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* @arg Any additional options or APIs
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*
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* @note The returned string must be available for the duration of the program.
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*
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* @note The returned string must not change for the duration of the program.
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*/
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const char* _glfwPlatformGetVersionString(void);
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// Input mode support
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/*! @brief Sets the position of the system cursor.
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* @param[in] window The window whose client area the specified posiiton is
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* relative to.
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* @param[in] x The new x-coordinate of the cursor, relative to the left edge
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* of the client area of the window.
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* @param[in] y The new y-coordinate of the cursor, relative to the top edge
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* of the client area of the window.
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* @ingroup platform
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*/
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void _glfwPlatformSetCursorPos(_GLFWwindow* window, int x, int y);
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/*! @brief Sets up the specified cursor mode for the specified window.
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* @param[in] window The window whose cursor mode to change.
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* @param[in] mode The desired cursor mode.
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* @ingroup platform
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*/
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void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode);
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// Monitor support
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/*! @ingroup platform
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*/
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_GLFWmonitor** _glfwPlatformGetMonitors(int* count);
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/*! @ingroup platform
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*/
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void _glfwPlatformDestroyMonitor(_GLFWmonitor* monitor);
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// Video mode support
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/*! @ingroup platform
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*/
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GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count);
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/*! @ingroup platform
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*/
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void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode* mode);
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// Gamma ramp support
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/*! @brief Returns the current system gamma ramp.
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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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/*! @brief Sets the system gamma ramp.
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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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// Clipboard support
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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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* systems where this is necessary.
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* @param[in] string The UTF-8 encoded string to use.
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* @ingroup platform
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*/
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void _glfwPlatformSetClipboardString(_GLFWwindow* window, const char* string);
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/*! @brief Returns the string in the system clipboard.
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* @param[in] window The window who will request the system clipboard contents,
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* on systems where this is necessary.
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* @return The UTF-8 encoded contents, or @c NULL if the system clipboard did
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* not contain a string.
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* @ingroup platform
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*
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* @note The returned string must be valid until the next call to @ref
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* _glfwPlatformGetClipboardString or @ref _glfwPlatformSetClipboardString.
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*/
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const char* _glfwPlatformGetClipboardString(_GLFWwindow* window);
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// Joystick input
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/*! @brief Returns the value of the specified joystick property.
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* @param[in] joy The joystick to use.
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* @param[in] param The property whose value to return.
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* @return The value of the specified property, or zero if an error occurred.
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* @ingroup platform
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*/
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int _glfwPlatformGetJoystickParam(int joy, int param);
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/*! @ingroup platform
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*/
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int _glfwPlatformGetJoystickAxes(int joy, float* axes, int numaxes);
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/*! @ingroup platform
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*/
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int _glfwPlatformGetJoystickButtons(int joy, unsigned char* buttons, int numbuttons);
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/*! @ingroup platform
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*/
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const char* _glfwPlatformGetJoystickName(int joy);
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// Time input
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/*! @brief Returns the current value of the timer.
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* @return The value, in seconds, of the timer.
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* @ingroup platform
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*/
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double _glfwPlatformGetTime(void);
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/*! @brief Sets the value of the timer.
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* @param[in] time The new value, in seconds, of the timer.
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* @ingroup platform
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*/
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void _glfwPlatformSetTime(double time);
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// Window management
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int _glfwPlatformCreateWindow(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWfbconfig* fbconfig);
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/*! @ingroup platform
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*/
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int _glfwPlatformCreateWindow(_GLFWwindow* window,
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const _GLFWwndconfig* wndconfig,
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const _GLFWfbconfig* fbconfig);
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/*! @ingroup platform
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*/
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void _glfwPlatformDestroyWindow(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title);
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/*! @ingroup platform
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*/
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void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height);
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/*! @ingroup platform
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*/
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void _glfwPlatformIconifyWindow(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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void _glfwPlatformRestoreWindow(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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void _glfwPlatformShowWindow(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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void _glfwPlatformHideWindow(_GLFWwindow* window);
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// Event processing
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/*! @ingroup platform
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*/
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void _glfwPlatformPollEvents(void);
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/*! @ingroup platform
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*/
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void _glfwPlatformWaitEvents(void);
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// OpenGL context management
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/*! @ingroup platform
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*/
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void _glfwPlatformMakeContextCurrent(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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_GLFWwindow* _glfwPlatformGetCurrentContext(void);
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/*! @ingroup platform
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*/
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void _glfwPlatformSwapBuffers(_GLFWwindow* window);
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/*! @ingroup platform
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*/
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void _glfwPlatformSwapInterval(int interval);
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int _glfwPlatformExtensionSupported(const char* extension);
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/*! @ingroup platform
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*/
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int _glfwPlatformExtensionSupported(const char* extension);
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/*! @ingroup platform
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*/
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GLFWglproc _glfwPlatformGetProcAddress(const char* procname);
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/*! @ingroup platform
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*/
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int _glfwPlatformExtensionSupported(const char* extension);
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/*! @brief Returns the address of the specified client API function.
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* @param[in] procname The name of the desired function.
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* @return The address of the function, or @c NULL if it is not available.
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* @ingroup platform
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*/
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GLFWglproc _glfwPlatformGetProcAddress(const char* procname);
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//========================================================================
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// Prototypes for the event API
|
||||
// This is used by the platform-specific code to notify the shared code of
|
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// events that can be translated into state changes and/or callback calls,
|
||||
// instead of directly calling callbacks or modifying shared state
|
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// Event API functions
|
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//========================================================================
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// Window event notification (window.c)
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/*! @brief Notifies shared code of a window focus event.
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* @param[in] window The window that received the event.
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* @param[in] focused @c GL_TRUE if the window received focus, or @c GL_FALSE
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* if it lost focus.
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* @ingroup event
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*/
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void _glfwInputWindowFocus(_GLFWwindow* window, GLboolean focused);
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/*! @brief Notifies shared code of a window movement event.
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* @param[in] window The window that received the event.
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* @param[in] x The new x-coordinate of the client area of the window.
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* @param[in] x The new y-coordinate of the client area of the window.
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* @ingroup event
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*/
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void _glfwInputWindowPos(_GLFWwindow* window, int x, int y);
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/*! @brief Notifies shared code of a window resize event.
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* @param[in] window The window that received the event.
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* @param[in] width The new width of the client area of the window.
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* @param[in] height The new height of the client area of the window.
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* @ingroup event
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*/
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void _glfwInputWindowSize(_GLFWwindow* window, int width, int height);
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/*! @brief Notifies shared code of a window iconification event.
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* @param[in] window The window that received the event.
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* @param[in] iconified @c GL_TRUE if the window was iconified, or @c GL_FALSE
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* if it was restored.
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* @ingroup event
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*/
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void _glfwInputWindowIconify(_GLFWwindow* window, int iconified);
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/*! @brief Notifies shared code of a window show/hide event.
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* @param[in] window The window that received the event.
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* @param[in] visible @c GL_TRUE if the window was shown, or @c GL_FALSE if it
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* was hidden.
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* @ingroup event
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*/
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void _glfwInputWindowVisibility(_GLFWwindow* window, int visible);
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/*! @brief Notifies shared code of a window damage event.
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* @param[in] window The window that received the event.
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*/
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void _glfwInputWindowDamage(_GLFWwindow* window);
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/*! @brief Notifies shared code of a window close request event
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* @param[in] window The window that received the event.
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* @ingroup event
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*/
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void _glfwInputWindowCloseRequest(_GLFWwindow* window);
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// Input event notification (input.c)
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/*! @brief Notifies shared code of a physical key event.
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* @param[in] window The window that received the event.
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* @param[in] key The key that was pressed or released.
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* @param[in] action @ref GLFW_PRESS or @ref GLFW_RELEASE.
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* @ingroup event
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*/
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void _glfwInputKey(_GLFWwindow* window, int key, int action);
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/*! @brief Notifies shared code of a Unicode character input event.
|
||||
* @param[in] window The window that received the event.
|
||||
* @param[in] character The Unicode code point of the input character.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputChar(_GLFWwindow* window, int character);
|
||||
|
||||
/*! @brief Notifies shared code of a scroll event.
|
||||
* @param[in] window The window that received the event.
|
||||
* @param[in] x The scroll offset along the x-axis.
|
||||
* @param[in] y The scroll offset along the y-axis.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputScroll(_GLFWwindow* window, double x, double y);
|
||||
|
||||
/*! @brief Notifies shared code of a mouse button click event.
|
||||
* @param[in] window The window that received the event.
|
||||
* @param[in] button The button that was pressed or released.
|
||||
* @param[in] action @ref GLFW_PRESS or @ref GLFW_RELEASE.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputMouseClick(_GLFWwindow* window, int button, int action);
|
||||
|
||||
/*! @brief Notifies shared code of a cursor motion event.
|
||||
* @param[in] window The window that received the event.
|
||||
* @param[in] x The new x-coordinate of the cursor, relative to the left edge
|
||||
* of the client area of the window.
|
||||
* @param[in] y The new y-coordinate of the cursor, relative to the top edge
|
||||
* of the client area of the window.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputCursorMotion(_GLFWwindow* window, int x, int y);
|
||||
|
||||
/*! @brief Notifies shared code of a cursor enter/leave event.
|
||||
* @param[in] window The window that received the event.
|
||||
* @param[in] entered @c GL_TRUE if the cursor entered the client area of the
|
||||
* window, or @c GL_FALSE if it left it.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputCursorEnter(_GLFWwindow* window, int entered);
|
||||
|
||||
// Monitor event notification (monitor.c)
|
||||
/*! @ingroup event
|
||||
*/
|
||||
void _glfwInputMonitorChange(void);
|
||||
|
||||
// Error event notification (init.c)
|
||||
/*! @brief Notifies shared code of an error.
|
||||
* @param[in] error The error code most suitable for the error.
|
||||
* @param[in] format The @c printf style format string of the error
|
||||
* description.
|
||||
* @ingroup event
|
||||
*/
|
||||
void _glfwInputError(int error, const char* format, ...);
|
||||
|
||||
|
||||
//========================================================================
|
||||
// Prototypes for internal utility functions
|
||||
// These functions are shared code and may be used by any part of GLFW
|
||||
// Each platform may add its own utility functions, but those may only be
|
||||
// called by the platform-specific code
|
||||
// Utility functions
|
||||
//========================================================================
|
||||
|
||||
// Fullscren management (fullscreen.c)
|
||||
/*! @ingroup utility
|
||||
*/
|
||||
const GLFWvidmode* _glfwChooseVideoMode(const GLFWvidmode* desired,
|
||||
const GLFWvidmode* alternatives,
|
||||
unsigned int count);
|
||||
|
||||
/*! @brief Performs lexical comparison between two @ref GLFWvidmode structures.
|
||||
* @ingroup utility
|
||||
*/
|
||||
int _glfwCompareVideoModes(const GLFWvidmode* first, const GLFWvidmode* second);
|
||||
|
||||
/*! @brief Splits a color depth into red, green and blue bit depths.
|
||||
* @ingroup utility
|
||||
*/
|
||||
void _glfwSplitBPP(int bpp, int* red, int* green, int* blue);
|
||||
|
||||
// OpenGL context helpers (opengl.c)
|
||||
/*! @brief Searches an extension string for the specified extension.
|
||||
* @param[in] string The extension string to search.
|
||||
* @param[in] extension The extension to search for.
|
||||
* @return @c GL_TRUE if the extension was found, or @c GL_FALSE otherwise.
|
||||
* @ingroup utility
|
||||
*/
|
||||
int _glfwStringInExtensionString(const char* string, const GLubyte* extensions);
|
||||
|
||||
/*! @brief Chooses the framebuffer config that best matches the desired one.
|
||||
* @param[in] desired The desired framebuffer config.
|
||||
* @param[in] alternatives The framebuffer configs supported by the system.
|
||||
* @param[in] count The number of entries in the alternatives array.
|
||||
* @return The framebuffer config most closely matching the desired one, or @c
|
||||
* NULL if none fulfilled the hard constraints of the desired values.
|
||||
* @ingroup utility
|
||||
*/
|
||||
const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
|
||||
const _GLFWfbconfig* alternatives,
|
||||
unsigned int count);
|
||||
|
||||
/*! @brief Checks and reads back properties from the current context.
|
||||
* @return @c GL_TRUE if successful, or @c GL_FALSE if the context is unusable.
|
||||
* @ingroup utility
|
||||
*/
|
||||
GLboolean _glfwRefreshContextParams(void);
|
||||
|
||||
/*! @brief Checks whether the desired context properties are valid.
|
||||
* @param[in] wndconfig The context properties to check.
|
||||
* @return @c GL_TRUE if the context properties are valid, or @c GL_FALSE
|
||||
* otherwise.
|
||||
* @ingroup utility
|
||||
*
|
||||
* This function checks things like whether the specified client API version
|
||||
* exists and whether all relevant options have supported and non-conflicting
|
||||
* values.
|
||||
*/
|
||||
GLboolean _glfwIsValidContextConfig(_GLFWwndconfig* wndconfig);
|
||||
|
||||
/*! @brief Checks whether the current context fulfils the specified hard
|
||||
* constraints.
|
||||
* @param[in] wndconfig The desired context properties.
|
||||
* @return @c GL_TRUE if the context fulfils the hard constraints, or @c
|
||||
* GL_FALSE otherwise.
|
||||
* @ingroup utility
|
||||
*/
|
||||
GLboolean _glfwIsValidContext(_GLFWwndconfig* wndconfig);
|
||||
|
||||
// Monitor management (monitor.c)
|
||||
/*! @ingroup utility
|
||||
*/
|
||||
_GLFWmonitor* _glfwCreateMonitor(const char* name,
|
||||
GLboolean primary,
|
||||
int physicalWidth, int physicalHeight,
|
||||
int x, int y);
|
||||
|
||||
/*! @ingroup utility
|
||||
*/
|
||||
void _glfwDestroyMonitor(_GLFWmonitor* monitor);
|
||||
|
||||
/*! @ingroup utility
|
||||
*/
|
||||
void _glfwDestroyMonitors(void);
|
||||
|
||||
#endif // _internal_h_
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user