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rcore_desktop_sdl.c
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rcore_desktop_sdl.c
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/**********************************************************************************************
*
* rcore_desktop_sdl - Functions to manage window, graphics device and inputs
*
* PLATFORM: DESKTOP: SDL
* - Windows (Win32, Win64)
* - Linux (X11/Wayland desktop mode)
* - Others (not tested)
*
* LIMITATIONS:
* - Limitation 01
* - Limitation 02
*
* POSSIBLE IMPROVEMENTS:
* - Improvement 01
* - Improvement 02
*
* ADDITIONAL NOTES:
* - TRACELOG() function is located in raylib [utils] module
*
* CONFIGURATION:
* #define RCORE_PLATFORM_CUSTOM_FLAG
* Custom flag for rcore on target platform -not used-
*
* DEPENDENCIES:
* - SDL 2 (main library): Windowing and inputs management
* - gestures: Gestures system for touch-ready devices (or simulated from mouse inputs)
*
*
* LICENSE: zlib/libpng
*
* Copyright (c) 2013-2024 Ramon Santamaria (@raysan5) and contributors
*
* This software is provided "as-is", without any express or implied warranty. In no event
* will the authors be held liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose, including commercial
* applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not claim that you
* wrote the original software. If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
* as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/
#include "SDL.h" // SDL base library (window/rendered, input, timing... functionality)
#if defined(GRAPHICS_API_OPENGL_ES2)
// It seems it does not need to be included to work
//#include "SDL_opengles2.h"
#else
#include "SDL_opengl.h" // SDL OpenGL functionality (if required, instead of internal renderer)
#endif
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#ifndef MAX_CLIPBOARD_BUFFER_LENGTH
#define MAX_CLIPBOARD_BUFFER_LENGTH 1024 // Size of the clipboard buffer used on GetClipboardText()
#endif
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
typedef struct {
SDL_Window *window;
SDL_GLContext glContext;
SDL_GameController *gamepad[MAX_GAMEPADS];
SDL_Cursor *cursor;
bool cursorRelative;
} PlatformData;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
extern CoreData CORE; // Global CORE state context
static PlatformData platform = { 0 }; // Platform specific data
//----------------------------------------------------------------------------------
// Local Variables Definition
//----------------------------------------------------------------------------------
#define SCANCODE_MAPPED_NUM 232
static const KeyboardKey mapScancodeToKey[SCANCODE_MAPPED_NUM] = {
KEY_NULL, // SDL_SCANCODE_UNKNOWN
0,
0,
0,
KEY_A, // SDL_SCANCODE_A
KEY_B, // SDL_SCANCODE_B
KEY_C, // SDL_SCANCODE_C
KEY_D, // SDL_SCANCODE_D
KEY_E, // SDL_SCANCODE_E
KEY_F, // SDL_SCANCODE_F
KEY_G, // SDL_SCANCODE_G
KEY_H, // SDL_SCANCODE_H
KEY_I, // SDL_SCANCODE_I
KEY_J, // SDL_SCANCODE_J
KEY_K, // SDL_SCANCODE_K
KEY_L, // SDL_SCANCODE_L
KEY_M, // SDL_SCANCODE_M
KEY_N, // SDL_SCANCODE_N
KEY_O, // SDL_SCANCODE_O
KEY_P, // SDL_SCANCODE_P
KEY_Q, // SDL_SCANCODE_Q
KEY_R, // SDL_SCANCODE_R
KEY_S, // SDL_SCANCODE_S
KEY_T, // SDL_SCANCODE_T
KEY_U, // SDL_SCANCODE_U
KEY_V, // SDL_SCANCODE_V
KEY_W, // SDL_SCANCODE_W
KEY_X, // SDL_SCANCODE_X
KEY_Y, // SDL_SCANCODE_Y
KEY_Z, // SDL_SCANCODE_Z
KEY_ONE, // SDL_SCANCODE_1
KEY_TWO, // SDL_SCANCODE_2
KEY_THREE, // SDL_SCANCODE_3
KEY_FOUR, // SDL_SCANCODE_4
KEY_FIVE, // SDL_SCANCODE_5
KEY_SIX, // SDL_SCANCODE_6
KEY_SEVEN, // SDL_SCANCODE_7
KEY_EIGHT, // SDL_SCANCODE_8
KEY_NINE, // SDL_SCANCODE_9
KEY_ZERO, // SDL_SCANCODE_0
KEY_ENTER, // SDL_SCANCODE_RETURN
KEY_ESCAPE, // SDL_SCANCODE_ESCAPE
KEY_BACKSPACE, // SDL_SCANCODE_BACKSPACE
KEY_TAB, // SDL_SCANCODE_TAB
KEY_SPACE, // SDL_SCANCODE_SPACE
KEY_MINUS, // SDL_SCANCODE_MINUS
KEY_EQUAL, // SDL_SCANCODE_EQUALS
KEY_LEFT_BRACKET, // SDL_SCANCODE_LEFTBRACKET
KEY_RIGHT_BRACKET, // SDL_SCANCODE_RIGHTBRACKET
KEY_BACKSLASH, // SDL_SCANCODE_BACKSLASH
0, // SDL_SCANCODE_NONUSHASH
KEY_SEMICOLON, // SDL_SCANCODE_SEMICOLON
KEY_APOSTROPHE, // SDL_SCANCODE_APOSTROPHE
KEY_GRAVE, // SDL_SCANCODE_GRAVE
KEY_COMMA, // SDL_SCANCODE_COMMA
KEY_PERIOD, // SDL_SCANCODE_PERIOD
KEY_SLASH, // SDL_SCANCODE_SLASH
KEY_CAPS_LOCK, // SDL_SCANCODE_CAPSLOCK
KEY_F1, // SDL_SCANCODE_F1
KEY_F2, // SDL_SCANCODE_F2
KEY_F3, // SDL_SCANCODE_F3
KEY_F4, // SDL_SCANCODE_F4
KEY_F5, // SDL_SCANCODE_F5
KEY_F6, // SDL_SCANCODE_F6
KEY_F7, // SDL_SCANCODE_F7
KEY_F8, // SDL_SCANCODE_F8
KEY_F9, // SDL_SCANCODE_F9
KEY_F10, // SDL_SCANCODE_F10
KEY_F11, // SDL_SCANCODE_F11
KEY_F12, // SDL_SCANCODE_F12
KEY_PRINT_SCREEN, // SDL_SCANCODE_PRINTSCREEN
KEY_SCROLL_LOCK, // SDL_SCANCODE_SCROLLLOCK
KEY_PAUSE, // SDL_SCANCODE_PAUSE
KEY_INSERT, // SDL_SCANCODE_INSERT
KEY_HOME, // SDL_SCANCODE_HOME
KEY_PAGE_UP, // SDL_SCANCODE_PAGEUP
KEY_DELETE, // SDL_SCANCODE_DELETE
KEY_END, // SDL_SCANCODE_END
KEY_PAGE_DOWN, // SDL_SCANCODE_PAGEDOWN
KEY_RIGHT, // SDL_SCANCODE_RIGHT
KEY_LEFT, // SDL_SCANCODE_LEFT
KEY_DOWN, // SDL_SCANCODE_DOWN
KEY_UP, // SDL_SCANCODE_UP
KEY_NUM_LOCK, // SDL_SCANCODE_NUMLOCKCLEAR
KEY_KP_DIVIDE, // SDL_SCANCODE_KP_DIVIDE
KEY_KP_MULTIPLY, // SDL_SCANCODE_KP_MULTIPLY
KEY_KP_SUBTRACT, // SDL_SCANCODE_KP_MINUS
KEY_KP_ADD, // SDL_SCANCODE_KP_PLUS
KEY_KP_ENTER, // SDL_SCANCODE_KP_ENTER
KEY_KP_1, // SDL_SCANCODE_KP_1
KEY_KP_2, // SDL_SCANCODE_KP_2
KEY_KP_3, // SDL_SCANCODE_KP_3
KEY_KP_4, // SDL_SCANCODE_KP_4
KEY_KP_5, // SDL_SCANCODE_KP_5
KEY_KP_6, // SDL_SCANCODE_KP_6
KEY_KP_7, // SDL_SCANCODE_KP_7
KEY_KP_8, // SDL_SCANCODE_KP_8
KEY_KP_9, // SDL_SCANCODE_KP_9
KEY_KP_0, // SDL_SCANCODE_KP_0
KEY_KP_DECIMAL, // SDL_SCANCODE_KP_PERIOD
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0,
KEY_LEFT_CONTROL, //SDL_SCANCODE_LCTRL
KEY_LEFT_SHIFT, //SDL_SCANCODE_LSHIFT
KEY_LEFT_ALT, //SDL_SCANCODE_LALT
KEY_LEFT_SUPER, //SDL_SCANCODE_LGUI
KEY_RIGHT_CONTROL, //SDL_SCANCODE_RCTRL
KEY_RIGHT_SHIFT, //SDL_SCANCODE_RSHIFT
KEY_RIGHT_ALT, //SDL_SCANCODE_RALT
KEY_RIGHT_SUPER //SDL_SCANCODE_RGUI
};
static const int CursorsLUT[] = {
SDL_SYSTEM_CURSOR_ARROW, // 0 MOUSE_CURSOR_DEFAULT
SDL_SYSTEM_CURSOR_ARROW, // 1 MOUSE_CURSOR_ARROW
SDL_SYSTEM_CURSOR_IBEAM, // 2 MOUSE_CURSOR_IBEAM
SDL_SYSTEM_CURSOR_CROSSHAIR, // 3 MOUSE_CURSOR_CROSSHAIR
SDL_SYSTEM_CURSOR_HAND, // 4 MOUSE_CURSOR_POINTING_HAND
SDL_SYSTEM_CURSOR_SIZEWE, // 5 MOUSE_CURSOR_RESIZE_EW
SDL_SYSTEM_CURSOR_SIZENS, // 6 MOUSE_CURSOR_RESIZE_NS
SDL_SYSTEM_CURSOR_SIZENWSE, // 7 MOUSE_CURSOR_RESIZE_NWSE
SDL_SYSTEM_CURSOR_SIZENESW, // 8 MOUSE_CURSOR_RESIZE_NESW
SDL_SYSTEM_CURSOR_SIZEALL, // 9 MOUSE_CURSOR_RESIZE_ALL
SDL_SYSTEM_CURSOR_NO // 10 MOUSE_CURSOR_NOT_ALLOWED
//SDL_SYSTEM_CURSOR_WAIT, // No equivalent implemented on MouseCursor enum on raylib.h
//SDL_SYSTEM_CURSOR_WAITARROW, // No equivalent implemented on MouseCursor enum on raylib.h
};
//----------------------------------------------------------------------------------
// Module Internal Functions Declaration
//----------------------------------------------------------------------------------
int InitPlatform(void); // Initialize platform (graphics, inputs and more)
void ClosePlatform(void); // Close platform
static KeyboardKey ConvertScancodeToKey(SDL_Scancode sdlScancode); // Help convert SDL scancodes to raylib key
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
// NOTE: Functions declaration is provided by raylib.h
//----------------------------------------------------------------------------------
// Module Functions Definition: Window and Graphics Device
//----------------------------------------------------------------------------------
// Check if application should close
bool WindowShouldClose(void)
{
if (CORE.Window.ready) return CORE.Window.shouldClose;
else return true;
}
// Toggle fullscreen mode
void ToggleFullscreen(void)
{
const int monitor = SDL_GetWindowDisplayIndex(platform.window);
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
if ((CORE.Window.flags & FLAG_FULLSCREEN_MODE) > 0)
{
SDL_SetWindowFullscreen(platform.window, 0);
CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
CORE.Window.fullscreen = false;
}
else
{
SDL_SetWindowFullscreen(platform.window, SDL_WINDOW_FULLSCREEN);
CORE.Window.flags |= FLAG_FULLSCREEN_MODE;
CORE.Window.fullscreen = true;
}
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
}
// Toggle borderless windowed mode
void ToggleBorderlessWindowed(void)
{
const int monitor = SDL_GetWindowDisplayIndex(platform.window);
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
if ((CORE.Window.flags & FLAG_BORDERLESS_WINDOWED_MODE) > 0)
{
SDL_SetWindowFullscreen(platform.window, 0);
CORE.Window.flags &= ~FLAG_BORDERLESS_WINDOWED_MODE;
}
else
{
SDL_SetWindowFullscreen(platform.window, SDL_WINDOW_FULLSCREEN_DESKTOP);
CORE.Window.flags |= FLAG_BORDERLESS_WINDOWED_MODE;
}
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
}
// Set window state: maximized, if resizable
void MaximizeWindow(void)
{
SDL_MaximizeWindow(platform.window);
CORE.Window.flags |= FLAG_WINDOW_MAXIMIZED;
}
// Set window state: minimized
void MinimizeWindow(void)
{
SDL_MinimizeWindow(platform.window);
CORE.Window.flags |= FLAG_WINDOW_MINIMIZED;
}
// Set window state: not minimized/maximized
void RestoreWindow(void)
{
SDL_ShowWindow(platform.window);
}
// Set window configuration state using flags
void SetWindowState(unsigned int flags)
{
CORE.Window.flags |= flags;
if (flags & FLAG_VSYNC_HINT)
{
SDL_GL_SetSwapInterval(1);
}
if (flags & FLAG_FULLSCREEN_MODE)
{
const int monitor = SDL_GetWindowDisplayIndex(platform.window);
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_SetWindowFullscreen(platform.window, SDL_WINDOW_FULLSCREEN);
CORE.Window.fullscreen = true;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
}
if (flags & FLAG_WINDOW_RESIZABLE)
{
SDL_SetWindowResizable(platform.window, SDL_TRUE);
}
if (flags & FLAG_WINDOW_UNDECORATED)
{
SDL_SetWindowBordered(platform.window, SDL_FALSE);
}
if (flags & FLAG_WINDOW_HIDDEN)
{
SDL_HideWindow(platform.window);
}
if (flags & FLAG_WINDOW_MINIMIZED)
{
SDL_MinimizeWindow(platform.window);
}
if (flags & FLAG_WINDOW_MAXIMIZED)
{
SDL_MaximizeWindow(platform.window);
}
if (flags & FLAG_WINDOW_UNFOCUSED)
{
// NOTE: To be able to implement this part it seems that we should
// do it ourselves, via `Windows.h`, `X11/Xlib.h` or even `Cocoa.h`
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_WINDOW_UNFOCUSED is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_TOPMOST)
{
SDL_SetWindowAlwaysOnTop(platform.window, SDL_FALSE);
}
if (flags & FLAG_WINDOW_ALWAYS_RUN)
{
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_WINDOW_ALWAYS_RUN is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_TRANSPARENT)
{
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_WINDOW_TRANSPARENT is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_HIGHDPI)
{
// NOTE: Such a function does not seem to exist
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_WINDOW_HIGHDPI is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_MOUSE_PASSTHROUGH)
{
//SDL_SetWindowGrab(platform.window, SDL_FALSE);
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_WINDOW_MOUSE_PASSTHROUGH is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_BORDERLESS_WINDOWED_MODE)
{
const int monitor = SDL_GetWindowDisplayIndex(platform.window);
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_SetWindowFullscreen(platform.window, SDL_WINDOW_FULLSCREEN_DESKTOP);
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
}
if (flags & FLAG_MSAA_4X_HINT)
{
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); // Enable multisampling buffers
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 4); // Enable multisampling
}
if (flags & FLAG_INTERLACED_HINT)
{
TRACELOG(LOG_WARNING, "SetWindowState() - FLAG_INTERLACED_HINT is not supported on PLATFORM_DESKTOP_SDL");
}
}
// Clear window configuration state flags
void ClearWindowState(unsigned int flags)
{
CORE.Window.flags &= ~flags;
if (flags & FLAG_VSYNC_HINT)
{
SDL_GL_SetSwapInterval(0);
}
if (flags & FLAG_FULLSCREEN_MODE)
{
SDL_SetWindowFullscreen(platform.window, 0);
CORE.Window.fullscreen = false;
}
if (flags & FLAG_WINDOW_RESIZABLE)
{
SDL_SetWindowResizable(platform.window, SDL_FALSE);
}
if (flags & FLAG_WINDOW_UNDECORATED)
{
SDL_SetWindowBordered(platform.window, SDL_TRUE);
}
if (flags & FLAG_WINDOW_HIDDEN)
{
SDL_ShowWindow(platform.window);
}
if (flags & FLAG_WINDOW_MINIMIZED)
{
SDL_RestoreWindow(platform.window);
}
if (flags & FLAG_WINDOW_MAXIMIZED)
{
SDL_RestoreWindow(platform.window);
}
if (flags & FLAG_WINDOW_UNFOCUSED)
{
//SDL_RaiseWindow(platform.window);
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_WINDOW_UNFOCUSED is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_TOPMOST)
{
SDL_SetWindowAlwaysOnTop(platform.window, SDL_FALSE);
}
if (flags & FLAG_WINDOW_ALWAYS_RUN)
{
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_WINDOW_ALWAYS_RUN is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_TRANSPARENT)
{
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_WINDOW_TRANSPARENT is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_HIGHDPI)
{
// NOTE: There also doesn't seem to be a feature to disable high DPI once enabled
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_WINDOW_HIGHDPI is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_WINDOW_MOUSE_PASSTHROUGH)
{
//SDL_SetWindowGrab(platform.window, SDL_TRUE);
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_WINDOW_MOUSE_PASSTHROUGH is not supported on PLATFORM_DESKTOP_SDL");
}
if (flags & FLAG_BORDERLESS_WINDOWED_MODE)
{
SDL_SetWindowFullscreen(platform.window, 0);
}
if (flags & FLAG_MSAA_4X_HINT)
{
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0); // Disable multisampling buffers
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0); // Disable multisampling
}
if (flags & FLAG_INTERLACED_HINT)
{
TRACELOG(LOG_WARNING, "ClearWindowState() - FLAG_INTERLACED_HINT is not supported on PLATFORM_DESKTOP_SDL");
}
}
// Set icon for window
void SetWindowIcon(Image image)
{
SDL_Surface *iconSurface = NULL;
unsigned int rmask = 0, gmask = 0, bmask = 0, amask = 0;
int depth = 0; // Depth in bits
int pitch = 0; // Pixel spacing (pitch) in bytes
switch (image.format)
{
case PIXELFORMAT_UNCOMPRESSED_GRAYSCALE:
rmask = 0xFF, gmask = 0;
bmask = 0, amask = 0;
depth = 8, pitch = image.width;
break;
case PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA:
rmask = 0xFF, gmask = 0xFF00;
bmask = 0, amask = 0;
depth = 16, pitch = image.width*2;
break;
case PIXELFORMAT_UNCOMPRESSED_R5G6B5:
rmask = 0xF800, gmask = 0x07E0;
bmask = 0x001F, amask = 0;
depth = 16, pitch = image.width*2;
break;
case PIXELFORMAT_UNCOMPRESSED_R8G8B8: // Uses BGR for 24-bit
rmask = 0x0000FF, gmask = 0x00FF00;
bmask = 0xFF0000, amask = 0;
depth = 24, pitch = image.width*3;
break;
case PIXELFORMAT_UNCOMPRESSED_R5G5B5A1:
rmask = 0xF800, gmask = 0x07C0;
bmask = 0x003E, amask = 0x0001;
depth = 16, pitch = image.width*2;
break;
case PIXELFORMAT_UNCOMPRESSED_R4G4B4A4:
rmask = 0xF000, gmask = 0x0F00;
bmask = 0x00F0, amask = 0x000F;
depth = 16, pitch = image.width*2;
break;
case PIXELFORMAT_UNCOMPRESSED_R8G8B8A8:
rmask = 0xFF000000, gmask = 0x00FF0000;
bmask = 0x0000FF00, amask = 0x000000FF;
depth = 32, pitch = image.width*4;
break;
case PIXELFORMAT_UNCOMPRESSED_R32:
rmask = 0xFFFFFFFF, gmask = 0;
bmask = 0, amask = 0;
depth = 32, pitch = image.width*4;
break;
case PIXELFORMAT_UNCOMPRESSED_R32G32B32:
rmask = 0xFFFFFFFF, gmask = 0xFFFFFFFF;
bmask = 0xFFFFFFFF, amask = 0;
depth = 96, pitch = image.width*12;
break;
case PIXELFORMAT_UNCOMPRESSED_R32G32B32A32:
rmask = 0xFFFFFFFF, gmask = 0xFFFFFFFF;
bmask = 0xFFFFFFFF, amask = 0xFFFFFFFF;
depth = 128, pitch = image.width*16;
break;
case PIXELFORMAT_UNCOMPRESSED_R16:
rmask = 0xFFFF, gmask = 0;
bmask = 0, amask = 0;
depth = 16, pitch = image.width*2;
break;
case PIXELFORMAT_UNCOMPRESSED_R16G16B16:
rmask = 0xFFFF, gmask = 0xFFFF;
bmask = 0xFFFF, amask = 0;
depth = 48, pitch = image.width*6;
break;
case PIXELFORMAT_UNCOMPRESSED_R16G16B16A16:
rmask = 0xFFFF, gmask = 0xFFFF;
bmask = 0xFFFF, amask = 0xFFFF;
depth = 64, pitch = image.width*8;
break;
default: return; // Compressed formats are not supported
}
iconSurface = SDL_CreateRGBSurfaceFrom( image.data, image.width, image.height, depth, pitch, rmask, gmask, bmask, amask );
if (iconSurface)
{
SDL_SetWindowIcon(platform.window, iconSurface);
SDL_FreeSurface(iconSurface);
}
}
// Set icon for window
void SetWindowIcons(Image *images, int count)
{
TRACELOG(LOG_WARNING, "SetWindowIcons() not available on target platform");
}
// Set title for window
void SetWindowTitle(const char *title)
{
SDL_SetWindowTitle(platform.window, title);
CORE.Window.title = title;
}
// Set window position on screen (windowed mode)
void SetWindowPosition(int x, int y)
{
SDL_SetWindowPosition(platform.window, x, y);
CORE.Window.position.x = x;
CORE.Window.position.y = y;
}
// Set monitor for the current window
void SetWindowMonitor(int monitor)
{
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
// NOTE:
// 1. SDL started supporting moving exclusive fullscreen windows between displays on SDL3,
// see commit https://github.com/libsdl-org/SDL/commit/3f5ef7dd422057edbcf3e736107e34be4b75d9ba
// 2. A workaround for SDL2 is leaving fullscreen, moving the window, then entering full screen again.
const bool wasFullscreen = ((CORE.Window.flags & FLAG_FULLSCREEN_MODE) > 0)? true : false;
const int screenWidth = CORE.Window.screen.width;
const int screenHeight = CORE.Window.screen.height;
SDL_Rect usableBounds;
if (SDL_GetDisplayUsableBounds(monitor, &usableBounds) == 0)
{
if (wasFullscreen == 1) ToggleFullscreen(); // Leave fullscreen.
// If the screen size is larger than the monitor usable area, anchor it on the top left corner, otherwise, center it
if ((screenWidth >= usableBounds.w) || (screenHeight >= usableBounds.h))
{
// NOTE:
// 1. There's a known issue where if the window larger than the target display bounds,
// when moving the windows to that display, the window could be clipped back
// ending up positioned partly outside the target display.
// 2. The workaround for that is, previously to moving the window,
// setting the window size to the target display size, so they match.
// 3. It wasn't done here because we can't assume changing the window size automatically
// is acceptable behavior by the user.
SDL_SetWindowPosition(platform.window, usableBounds.x, usableBounds.y);
CORE.Window.position.x = usableBounds.x;
CORE.Window.position.y = usableBounds.y;
}
else
{
const int x = usableBounds.x + (usableBounds.w/2) - (screenWidth/2);
const int y = usableBounds.y + (usableBounds.h/2) - (screenHeight/2);
SDL_SetWindowPosition(platform.window, x, y);
CORE.Window.position.x = x;
CORE.Window.position.y = y;
}
if (wasFullscreen == 1) ToggleFullscreen(); // Re-enter fullscreen
}
else TRACELOG(LOG_WARNING, "SDL: Failed to get selected display usable bounds");
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
}
// Set window minimum dimensions (FLAG_WINDOW_RESIZABLE)
void SetWindowMinSize(int width, int height)
{
SDL_SetWindowMinimumSize(platform.window, width, height);
CORE.Window.screenMin.width = width;
CORE.Window.screenMin.height = height;
}
// Set window maximum dimensions (FLAG_WINDOW_RESIZABLE)
void SetWindowMaxSize(int width, int height)
{
SDL_SetWindowMaximumSize(platform.window, width, height);
CORE.Window.screenMax.width = width;
CORE.Window.screenMax.height = height;
}
// Set window dimensions
void SetWindowSize(int width, int height)
{
SDL_SetWindowSize(platform.window, width, height);
CORE.Window.screen.width = width;
CORE.Window.screen.height = height;
}
// Set window opacity, value opacity is between 0.0 and 1.0
void SetWindowOpacity(float opacity)
{
if (opacity >= 1.0f) opacity = 1.0f;
else if (opacity <= 0.0f) opacity = 0.0f;
SDL_SetWindowOpacity(platform.window, opacity);
}
// Set window focused
void SetWindowFocused(void)
{
SDL_RaiseWindow(platform.window);
}
// Get native window handle
void *GetWindowHandle(void)
{
return (void *)platform.window;
}
// Get number of monitors
int GetMonitorCount(void)
{
int monitorCount = 0;
monitorCount = SDL_GetNumVideoDisplays();
return monitorCount;
}
// Get number of monitors
int GetCurrentMonitor(void)
{
int currentMonitor = 0;
currentMonitor = SDL_GetWindowDisplayIndex(platform.window);
return currentMonitor;
}
// Get selected monitor position
Vector2 GetMonitorPosition(int monitor)
{
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_Rect displayBounds;
if (SDL_GetDisplayUsableBounds(monitor, &displayBounds) == 0)
{
return (Vector2){ (float)displayBounds.x, (float)displayBounds.y };
}
else TRACELOG(LOG_WARNING, "SDL: Failed to get selected display usable bounds");
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return (Vector2){ 0.0f, 0.0f };
}
// Get selected monitor width (currently used by monitor)
int GetMonitorWidth(int monitor)
{
int width = 0;
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_DisplayMode mode;
SDL_GetCurrentDisplayMode(monitor, &mode);
width = mode.w;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return width;
}
// Get selected monitor height (currently used by monitor)
int GetMonitorHeight(int monitor)
{
int height = 0;
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_DisplayMode mode;
SDL_GetCurrentDisplayMode(monitor, &mode);
height = mode.h;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return height;
}
// Get selected monitor physical width in millimetres
int GetMonitorPhysicalWidth(int monitor)
{
int width = 0;
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
float ddpi = 0.0f;
SDL_GetDisplayDPI(monitor, &ddpi, NULL, NULL);
SDL_DisplayMode mode;
SDL_GetCurrentDisplayMode(monitor, &mode);
// Calculate size on inches, then convert to millimeter
if (ddpi > 0.0f) width = (mode.w/ddpi)*25.4f;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return width;
}
// Get selected monitor physical height in millimetres
int GetMonitorPhysicalHeight(int monitor)
{
int height = 0;
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
float ddpi = 0.0f;
SDL_GetDisplayDPI(monitor, &ddpi, NULL, NULL);
SDL_DisplayMode mode;
SDL_GetCurrentDisplayMode(monitor, &mode);
// Calculate size on inches, then convert to millimeter
if (ddpi > 0.0f) height = (mode.h/ddpi)*25.4f;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return height;
}
// Get selected monitor refresh rate
int GetMonitorRefreshRate(int monitor)
{
int refresh = 0;
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount))
{
SDL_DisplayMode mode;
SDL_GetCurrentDisplayMode(monitor, &mode);
refresh = mode.refresh_rate;
}
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return refresh;
}
// Get the human-readable, UTF-8 encoded name of the selected monitor
const char *GetMonitorName(int monitor)
{
const int monitorCount = SDL_GetNumVideoDisplays();
if ((monitor >= 0) && (monitor < monitorCount)) return SDL_GetDisplayName(monitor);
else TRACELOG(LOG_WARNING, "SDL: Failed to find selected monitor");
return "";
}
// Get window position XY on monitor
Vector2 GetWindowPosition(void)
{
int x = 0;
int y = 0;
SDL_GetWindowPosition(platform.window, &x, &y);
return (Vector2){ (float)x, (float)y };
}
// Get window scale DPI factor for current monitor
Vector2 GetWindowScaleDPI(void)
{
Vector2 scale = { 1.0f, 1.0f };
// NOTE: SDL_GetWindowDisplayScale was only added on SDL3
// see https://wiki.libsdl.org/SDL3/SDL_GetWindowDisplayScale
// TODO: Implement the window scale factor calculation manually.
TRACELOG(LOG_WARNING, "GetWindowScaleDPI() not implemented on target platform");
return scale;
}
// Set clipboard text content
void SetClipboardText(const char *text)
{
SDL_SetClipboardText(text);
}
// Get clipboard text content
const char *GetClipboardText(void)
{
static char buffer[MAX_CLIPBOARD_BUFFER_LENGTH] = { 0 };
char *clipboard = SDL_GetClipboardText();
int clipboardSize = snprintf(buffer, sizeof(buffer), "%s", clipboard);
if (clipboardSize >= MAX_CLIPBOARD_BUFFER_LENGTH)
{
char *truncate = buffer + MAX_CLIPBOARD_BUFFER_LENGTH - 4;
sprintf(truncate, "...");
}
SDL_free(clipboard);
return buffer;
}
// Show mouse cursor
void ShowCursor(void)
{
SDL_ShowCursor(SDL_ENABLE);
CORE.Input.Mouse.cursorHidden = false;
}
// Hides mouse cursor
void HideCursor(void)
{
SDL_ShowCursor(SDL_DISABLE);
CORE.Input.Mouse.cursorHidden = true;
}
// Enables cursor (unlock cursor)
void EnableCursor(void)
{
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_ShowCursor(SDL_ENABLE);
platform.cursorRelative = false;
CORE.Input.Mouse.cursorHidden = false;
}
// Disables cursor (lock cursor)
void DisableCursor(void)
{
SDL_SetRelativeMouseMode(SDL_TRUE);
platform.cursorRelative = true;
CORE.Input.Mouse.cursorHidden = true;
}
// Swap back buffer with front buffer (screen drawing)
void SwapScreenBuffer(void)
{
SDL_GL_SwapWindow(platform.window);
}
//----------------------------------------------------------------------------------
// Module Functions Definition: Misc
//----------------------------------------------------------------------------------
// Get elapsed time measure in seconds
double GetTime(void)
{
unsigned int ms = SDL_GetTicks(); // Elapsed time in milliseconds since SDL_Init()
double time = (double)ms/1000;
return time;
}
// Open URL with default system browser (if available)
// NOTE: This function is only safe to use if you control the URL given.
// A user could craft a malicious string performing another action.
// Only call this function yourself not with user input or make sure to check the string yourself.
// Ref: https://github.com/raysan5/raylib/issues/686
void OpenURL(const char *url)
{
// Security check to (partially) avoid malicious code
if (strchr(url, '\'') != NULL) TRACELOG(LOG_WARNING, "SYSTEM: Provided URL could be potentially malicious, avoid [\'] character");
else SDL_OpenURL(url);
}
//----------------------------------------------------------------------------------
// Module Functions Definition: Inputs
//----------------------------------------------------------------------------------
// Set internal gamepad mappings
int SetGamepadMappings(const char *mappings)
{
return SDL_GameControllerAddMapping(mappings);
}
// Set gamepad vibration
void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor, float duration)
{
if ((gamepad < MAX_GAMEPADS) && CORE.Input.Gamepad.ready[gamepad] && (duration > 0.0f))
{
if (leftMotor < 0.0f) leftMotor = 0.0f;
if (leftMotor > 1.0f) leftMotor = 1.0f;
if (rightMotor < 0.0f) rightMotor = 0.0f;
if (rightMotor > 1.0f) rightMotor = 1.0f;
if (duration > MAX_GAMEPAD_VIBRATION_TIME) duration = MAX_GAMEPAD_VIBRATION_TIME;
SDL_GameControllerRumble(platform.gamepad[gamepad], (Uint16)(leftMotor*65535.0f), (Uint16)(rightMotor*65535.0f), (Uint32)(duration*1000.0f));
}
}
// Set mouse position XY
void SetMousePosition(int x, int y)
{
SDL_WarpMouseInWindow(platform.window, x, y);
CORE.Input.Mouse.currentPosition = (Vector2){ (float)x, (float)y };
CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
}
// Set mouse cursor
void SetMouseCursor(int cursor)
{
platform.cursor = SDL_CreateSystemCursor(CursorsLUT[cursor]);
SDL_SetCursor(platform.cursor);
CORE.Input.Mouse.cursor = cursor;
}
// Get physical key name.
const char *GetKeyName(int key)
{
return SDL_GetKeyName(key);
}
static void UpdateTouchPointsSDL(SDL_TouchFingerEvent event)
{
CORE.Input.Touch.pointCount = SDL_GetNumTouchFingers(event.touchId);
for (int i = 0; i < CORE.Input.Touch.pointCount; i++)
{
SDL_Finger *finger = SDL_GetTouchFinger(event.touchId, i);