src/video/SDL_video.c
author Ryan C. Gordon <icculus@icculus.org>
Thu, 20 Mar 2014 11:14:02 -0400
changeset 8651 b1cb565609dc
parent 8616 ec011c16e2fd
child 8655 edd378be2433
permissions -rw-r--r--
Static analysis fix: let clang know _this->displays isn't NULL.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../SDL_internal.h"
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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_video.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_rect_c.h"
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#include "../events/SDL_events_c.h"
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#include "../timer/SDL_timer_c.h"
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#include "SDL_syswm.h"
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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#endif /* SDL_VIDEO_OPENGL */
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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/* GL and GLES2 headers conflict on Linux 32 bits */
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#if SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL */
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_MIR
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    &MIR_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WINDOWS
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    &WINDOWS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WINRT
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    &WINRT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_HAIKU
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    &HAIKU_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PANDORA
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    &PND_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_ANDROID
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    &Android_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PSP
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    &PSP_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_RPI
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    &RPI_bootstrap,
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#endif 
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#if SDL_VIDEO_DRIVER_WAYLAND
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    &Wayland_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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#define CHECK_WINDOW_MAGIC(window, retval) \
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    if (!_this) { \
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        SDL_UninitializedVideo(); \
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        return retval; \
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    } \
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    if (!window || window->magic != &_this->window_magic) { \
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        SDL_SetError("Invalid window"); \
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        return retval; \
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    }
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#define CHECK_DISPLAY_INDEX(displayIndex, retval) \
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    if (!_this) { \
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        SDL_UninitializedVideo(); \
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        return retval; \
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    } \
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    SDL_assert(_this->displays != NULL); \
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    if (displayIndex < 0 || displayIndex >= _this->num_displays) { \
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        SDL_SetError("displayIndex must be in the range 0 - %d", \
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                     _this->num_displays - 1); \
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        return retval; \
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    }
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#define FULLSCREEN_MASK ( SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN )
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#ifdef __MACOSX__
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/* Support for Mac OS X fullscreen spaces */
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extern SDL_bool Cocoa_IsWindowInFullscreenSpace(SDL_Window * window);
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extern SDL_bool Cocoa_SetWindowFullscreenSpace(SDL_Window * window, SDL_bool state);
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#endif
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/* Support for framebuffer emulation using an accelerated renderer */
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#define SDL_WINDOWTEXTUREDATA   "_SDL_WindowTextureData"
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typedef struct {
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    SDL_Renderer *renderer;
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    SDL_Texture *texture;
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    void *pixels;
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    int pitch;
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    int bytes_per_pixel;
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} SDL_WindowTextureData;
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static SDL_bool
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ShouldUseTextureFramebuffer()
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{
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    const char *hint;
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    /* If there's no native framebuffer support then there's no option */
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    if (!_this->CreateWindowFramebuffer) {
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        return SDL_TRUE;
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    }
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    /* If the user has specified a software renderer we can't use a
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       texture framebuffer, or renderer creation will go recursive.
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     */
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    hint = SDL_GetHint(SDL_HINT_RENDER_DRIVER);
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    if (hint && SDL_strcasecmp(hint, "software") == 0) {
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        return SDL_FALSE;
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    }
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    /* See if the user or application wants a specific behavior */
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    hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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    if (hint) {
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        if (*hint == '0') {
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            return SDL_FALSE;
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        } else {
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            return SDL_TRUE;
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        }
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    }
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    /* Each platform has different performance characteristics */
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#if defined(__WIN32__)
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    /* GDI BitBlt() is way faster than Direct3D dynamic textures right now.
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     */
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    return SDL_FALSE;
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#elif defined(__MACOSX__)
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    /* Mac OS X uses OpenGL as the native fast path */
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    return SDL_TRUE;
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#elif defined(__LINUX__)
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    /* Properly configured OpenGL drivers are faster than MIT-SHM */
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#if SDL_VIDEO_OPENGL
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    /* Ugh, find a way to cache this value! */
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    {
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        SDL_Window *window;
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        SDL_GLContext context;
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        SDL_bool hasAcceleratedOpenGL = SDL_FALSE;
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        window = SDL_CreateWindow("OpenGL test", -32, -32, 32, 32, SDL_WINDOW_OPENGL|SDL_WINDOW_HIDDEN);
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        if (window) {
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            context = SDL_GL_CreateContext(window);
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            if (context) {
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                const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
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                const char *vendor = NULL;
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                glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
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                if (glGetStringFunc) {
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                    vendor = (const char *) glGetStringFunc(GL_VENDOR);
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                }
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                /* Add more vendors here at will... */
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                if (vendor &&
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                    (SDL_strstr(vendor, "ATI Technologies") ||
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                     SDL_strstr(vendor, "NVIDIA"))) {
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                    hasAcceleratedOpenGL = SDL_TRUE;
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                }
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                SDL_GL_DeleteContext(context);
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            }
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            SDL_DestroyWindow(window);
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        }
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        return hasAcceleratedOpenGL;
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    }
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#elif SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
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    /* Let's be optimistic about this! */
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    return SDL_TRUE;
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#else
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    return SDL_FALSE;
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#endif
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#else
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    /* Play it safe, assume that if there is a framebuffer driver that it's
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       optimized for the current platform.
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    */
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    return SDL_FALSE;
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#endif
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}
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static int
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SDL_CreateWindowTexture(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
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{
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    SDL_WindowTextureData *data;
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    SDL_RendererInfo info;
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    Uint32 i;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data) {
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        SDL_Renderer *renderer = NULL;
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        SDL_RendererInfo info;
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        int i;
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        const char *hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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        /* Check to see if there's a specific driver requested */
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        if (hint && *hint != '0' && *hint != '1' &&
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            SDL_strcasecmp(hint, "software") != 0) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcasecmp(info.name, hint) == 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    break;
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                }
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            }
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        }
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        if (!renderer) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcmp(info.name, "software") != 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    if (renderer) {
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                        break;
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                    }
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                }
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            }
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        }
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        if (!renderer) {
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            return SDL_SetError("No hardware accelerated renderers available");
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        }
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        /* Create the data after we successfully create the renderer (bug #1116) */
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        data = (SDL_WindowTextureData *)SDL_calloc(1, sizeof(*data));
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        if (!data) {
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            SDL_DestroyRenderer(renderer);
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            return SDL_OutOfMemory();
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        }
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        SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, data);
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        data->renderer = renderer;
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    }
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    /* Free any old texture and pixel data */
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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        data->texture = NULL;
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    }
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    SDL_free(data->pixels);
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    data->pixels = NULL;
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    if (SDL_GetRendererInfo(data->renderer, &info) < 0) {
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        return -1;
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    }
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    /* Find the first format without an alpha channel */
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    *format = info.texture_formats[0];
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    for (i = 0; i < info.num_texture_formats; ++i) {
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        if (!SDL_ISPIXELFORMAT_FOURCC(info.texture_formats[i]) &&
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            !SDL_ISPIXELFORMAT_ALPHA(info.texture_formats[i])) {
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            *format = info.texture_formats[i];
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            break;
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        }
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    }
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    data->texture = SDL_CreateTexture(data->renderer, *format,
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                                      SDL_TEXTUREACCESS_STREAMING,
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                                      window->w, window->h);
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    if (!data->texture) {
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        return -1;
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    }
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    /* Create framebuffer data */
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    data->bytes_per_pixel = SDL_BYTESPERPIXEL(*format);
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    data->pitch = (((window->w * data->bytes_per_pixel) + 3) & ~3);
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    data->pixels = SDL_malloc(window->h * data->pitch);
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    if (!data->pixels) {
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        return SDL_OutOfMemory();
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    }
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    *pixels = data->pixels;
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    *pitch = data->pitch;
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    /* Make sure we're not double-scaling the viewport */
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    SDL_RenderSetViewport(data->renderer, NULL);
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    return 0;
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}
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static int
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SDL_UpdateWindowTexture(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
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{
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    SDL_WindowTextureData *data;
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    SDL_Rect rect;
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    void *src;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data || !data->texture) {
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        return SDL_SetError("No window texture data");
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    }
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    /* Update a single rect that contains subrects for best DMA performance */
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    if (SDL_GetSpanEnclosingRect(window->w, window->h, numrects, rects, &rect)) {
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        src = (void *)((Uint8 *)data->pixels +
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                        rect.y * data->pitch +
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                        rect.x * data->bytes_per_pixel);
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        if (SDL_UpdateTexture(data->texture, &rect, src, data->pitch) < 0) {
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            return -1;
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        }
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        if (SDL_RenderCopy(data->renderer, data->texture, NULL, NULL) < 0) {
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            return -1;
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        }
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        SDL_RenderPresent(data->renderer);
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    }
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    return 0;
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}
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static void
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SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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{
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    SDL_WindowTextureData *data;
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    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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    if (!data) {
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        return;
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    }
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    if (data->texture) {
slouken@8582
   369
        SDL_DestroyTexture(data->texture);
slouken@8582
   370
    }
slouken@8582
   371
    if (data->renderer) {
slouken@8582
   372
        SDL_DestroyRenderer(data->renderer);
slouken@8582
   373
    }
slouken@8582
   374
    SDL_free(data->pixels);
slouken@8582
   375
    SDL_free(data);
slouken@8582
   376
}
slouken@8582
   377
slouken@8582
   378
slouken@8582
   379
static int
slouken@8582
   380
cmpmodes(const void *A, const void *B)
slouken@8582
   381
{
slouken@8582
   382
    const SDL_DisplayMode *a = (const SDL_DisplayMode *) A;
slouken@8582
   383
    const SDL_DisplayMode *b = (const SDL_DisplayMode *) B;
slouken@8582
   384
    if (a == b) {
slouken@8582
   385
        return 0;
slouken@8582
   386
    } else if (a->w != b->w) {
slouken@8582
   387
        return b->w - a->w;
slouken@8582
   388
    } else if (a->h != b->h) {
slouken@8582
   389
        return b->h - a->h;
slouken@8582
   390
    } else if (SDL_BITSPERPIXEL(a->format) != SDL_BITSPERPIXEL(b->format)) {
slouken@8582
   391
        return SDL_BITSPERPIXEL(b->format) - SDL_BITSPERPIXEL(a->format);
slouken@8582
   392
    } else if (SDL_PIXELLAYOUT(a->format) != SDL_PIXELLAYOUT(b->format)) {
slouken@8582
   393
        return SDL_PIXELLAYOUT(b->format) - SDL_PIXELLAYOUT(a->format);
slouken@8582
   394
    } else if (a->refresh_rate != b->refresh_rate) {
slouken@8582
   395
        return b->refresh_rate - a->refresh_rate;
slouken@8582
   396
    }
slouken@8582
   397
    return 0;
slouken@8582
   398
}
slouken@8582
   399
slouken@8582
   400
static int
slouken@8582
   401
SDL_UninitializedVideo()
slouken@8582
   402
{
slouken@8582
   403
    return SDL_SetError("Video subsystem has not been initialized");
slouken@8582
   404
}
slouken@8582
   405
slouken@8582
   406
int
slouken@8582
   407
SDL_GetNumVideoDrivers(void)
slouken@8582
   408
{
slouken@8582
   409
    return SDL_arraysize(bootstrap) - 1;
slouken@8582
   410
}
slouken@8582
   411
slouken@8582
   412
const char *
slouken@8582
   413
SDL_GetVideoDriver(int index)
slouken@8582
   414
{
slouken@8582
   415
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@8582
   416
        return bootstrap[index]->name;
slouken@8582
   417
    }
slouken@8582
   418
    return NULL;
slouken@8582
   419
}
slouken@8582
   420
slouken@8582
   421
/*
slouken@8582
   422
 * Initialize the video and event subsystems -- determine native pixel format
slouken@8582
   423
 */
slouken@8582
   424
int
slouken@8582
   425
SDL_VideoInit(const char *driver_name)
slouken@8582
   426
{
slouken@8582
   427
    SDL_VideoDevice *video;
slouken@8266
   428
    const char *hint;
slouken@8582
   429
    int index;
slouken@8582
   430
    int i;
slouken@8266
   431
    SDL_bool allow_screensaver;
slouken@8582
   432
slouken@8582
   433
    /* Check to make sure we don't overwrite '_this' */
slouken@8582
   434
    if (_this != NULL) {
slouken@8582
   435
        SDL_VideoQuit();
slouken@8582
   436
    }
slouken@8582
   437
slouken@8582
   438
#if !SDL_TIMERS_DISABLED
slouken@8268
   439
    SDL_TicksInit();
slouken@8582
   440
#endif
slouken@8582
   441
slouken@8582
   442
    /* Start the event loop */
slouken@8582
   443
    if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0 ||
slouken@8582
   444
        SDL_KeyboardInit() < 0 ||
slouken@8582
   445
        SDL_MouseInit() < 0 ||
slouken@8582
   446
        SDL_TouchInit() < 0) {
slouken@8582
   447
        return -1;
slouken@8582
   448
    }
slouken@8582
   449
slouken@8582
   450
    /* Select the proper video driver */
slouken@8582
   451
    index = 0;
slouken@8582
   452
    video = NULL;
slouken@8582
   453
    if (driver_name == NULL) {
slouken@8582
   454
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@8582
   455
    }
slouken@8582
   456
    if (driver_name != NULL) {
slouken@8582
   457
        for (i = 0; bootstrap[i]; ++i) {
slouken@8582
   458
            if (SDL_strncasecmp(bootstrap[i]->name, driver_name, SDL_strlen(driver_name)) == 0) {
gabomdq@8117
   459
                if (bootstrap[i]->available()) {
gabomdq@8117
   460
                    video = bootstrap[i]->create(index);
gabomdq@8117
   461
                    break;
gabomdq@8117
   462
                }
slouken@8582
   463
            }
slouken@8582
   464
        }
slouken@8582
   465
    } else {
slouken@8582
   466
        for (i = 0; bootstrap[i]; ++i) {
slouken@8582
   467
            if (bootstrap[i]->available()) {
slouken@8582
   468
                video = bootstrap[i]->create(index);
slouken@8582
   469
                if (video != NULL) {
slouken@8582
   470
                    break;
slouken@8582
   471
                }
slouken@8582
   472
            }
slouken@8582
   473
        }
slouken@8582
   474
    }
slouken@8582
   475
    if (video == NULL) {
slouken@8582
   476
        if (driver_name) {
slouken@8582
   477
            return SDL_SetError("%s not available", driver_name);
slouken@8582
   478
        }
slouken@8582
   479
        return SDL_SetError("No available video device");
slouken@8582
   480
    }
slouken@8582
   481
    _this = video;
slouken@8582
   482
    _this->name = bootstrap[i]->name;
slouken@8582
   483
    _this->next_object_id = 1;
slouken@8582
   484
slouken@8582
   485
slouken@8582
   486
    /* Set some very sane GL defaults */
slouken@8582
   487
    _this->gl_config.driver_loaded = 0;
slouken@8582
   488
    _this->gl_config.dll_handle = NULL;
jorgen@8145
   489
    SDL_GL_ResetAttributes();
slouken@8582
   490
slouken@8582
   491
    _this->current_glwin_tls = SDL_TLSCreate();
slouken@8582
   492
    _this->current_glctx_tls = SDL_TLSCreate();
slouken@8582
   493
slouken@8582
   494
    /* Initialize the video subsystem */
slouken@8582
   495
    if (_this->VideoInit(_this) < 0) {
slouken@8582
   496
        SDL_VideoQuit();
slouken@8582
   497
        return -1;
slouken@8582
   498
    }
slouken@8582
   499
slouken@8582
   500
    /* Make sure some displays were added */
slouken@8582
   501
    if (_this->num_displays == 0) {
slouken@8582
   502
        SDL_VideoQuit();
slouken@8582
   503
        return SDL_SetError("The video driver did not add any displays");
slouken@8582
   504
    }
slouken@8582
   505
slouken@8582
   506
    /* Add the renderer framebuffer emulation if desired */
slouken@8582
   507
    if (ShouldUseTextureFramebuffer()) {
slouken@8582
   508
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@8582
   509
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@8582
   510
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@8582
   511
    }
slouken@8582
   512
icculus@8265
   513
    /* Disable the screen saver by default. This is a change from <= 2.0.1,
icculus@8265
   514
       but most things using SDL are games or media players; you wouldn't
icculus@8265
   515
       want a screensaver to trigger if you're playing exclusively with a
icculus@8265
   516
       joystick, or passively watching a movie. Things that use SDL but
icculus@8265
   517
       function more like a normal desktop app should explicitly reenable the
icculus@8265
   518
       screensaver. */
slouken@8266
   519
    hint = SDL_GetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER);
slouken@8266
   520
    if (hint) {
slouken@8266
   521
        allow_screensaver = SDL_atoi(hint) ? SDL_TRUE : SDL_FALSE;
slouken@8266
   522
    } else {
slouken@8266
   523
        allow_screensaver = SDL_FALSE;
slouken@8266
   524
    }
slouken@8266
   525
    if (!allow_screensaver) {
slouken@8266
   526
        SDL_DisableScreenSaver();
slouken@8266
   527
    }
icculus@8265
   528
slouken@8582
   529
    /* If we don't use a screen keyboard, turn on text input by default,
slouken@8582
   530
       otherwise programs that expect to get text events without enabling
slouken@8582
   531
       UNICODE input won't get any events.
slouken@8582
   532
slouken@8582
   533
       Actually, come to think of it, you needed to call SDL_EnableUNICODE(1)
slouken@8582
   534
       in SDL 1.2 before you got text input events.  Hmm...
slouken@8582
   535
     */
slouken@8582
   536
    if (!SDL_HasScreenKeyboardSupport()) {
slouken@8582
   537
        SDL_StartTextInput();
slouken@8582
   538
    }
slouken@8582
   539
slouken@8582
   540
    /* We're ready to go! */
slouken@8582
   541
    return 0;
slouken@8582
   542
}
slouken@8582
   543
slouken@8582
   544
const char *
slouken@8582
   545
SDL_GetCurrentVideoDriver()
slouken@8582
   546
{
slouken@8582
   547
    if (!_this) {
slouken@8582
   548
        SDL_UninitializedVideo();
slouken@8582
   549
        return NULL;
slouken@8582
   550
    }
slouken@8582
   551
    return _this->name;
slouken@8582
   552
}
slouken@8582
   553
slouken@8582
   554
SDL_VideoDevice *
slouken@8582
   555
SDL_GetVideoDevice(void)
slouken@8582
   556
{
slouken@8582
   557
    return _this;
slouken@8582
   558
}
slouken@8582
   559
slouken@8582
   560
int
slouken@8582
   561
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@8582
   562
{
slouken@8582
   563
    SDL_VideoDisplay display;
slouken@8582
   564
slouken@8582
   565
    SDL_zero(display);
slouken@8582
   566
    if (desktop_mode) {
slouken@8582
   567
        display.desktop_mode = *desktop_mode;
slouken@8582
   568
    }
slouken@8582
   569
    display.current_mode = display.desktop_mode;
slouken@8582
   570
slouken@8582
   571
    return SDL_AddVideoDisplay(&display);
slouken@8582
   572
}
slouken@8582
   573
slouken@8582
   574
int
slouken@8582
   575
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@8582
   576
{
slouken@8582
   577
    SDL_VideoDisplay *displays;
slouken@8582
   578
    int index = -1;
slouken@8582
   579
slouken@8582
   580
    displays =
slouken@8582
   581
        SDL_realloc(_this->displays,
slouken@8582
   582
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@8582
   583
    if (displays) {
slouken@8582
   584
        index = _this->num_displays++;
slouken@8582
   585
        displays[index] = *display;
slouken@8582
   586
        displays[index].device = _this;
slouken@8582
   587
        _this->displays = displays;
slouken@8582
   588
slouken@8582
   589
        if (display->name) {
slouken@8582
   590
            displays[index].name = SDL_strdup(display->name);
slouken@8582
   591
        } else {
slouken@8582
   592
            char name[32];
slouken@8582
   593
slouken@8582
   594
            SDL_itoa(index, name, 10);
slouken@8582
   595
            displays[index].name = SDL_strdup(name);
slouken@8582
   596
        }
slouken@8582
   597
    } else {
slouken@8582
   598
        SDL_OutOfMemory();
slouken@8582
   599
    }
slouken@8582
   600
    return index;
slouken@8582
   601
}
slouken@8582
   602
slouken@8582
   603
int
slouken@8582
   604
SDL_GetNumVideoDisplays(void)
slouken@8582
   605
{
slouken@8582
   606
    if (!_this) {
slouken@8582
   607
        SDL_UninitializedVideo();
slouken@8582
   608
        return 0;
slouken@8582
   609
    }
slouken@8582
   610
    return _this->num_displays;
slouken@8582
   611
}
slouken@8582
   612
slouken@8582
   613
static int
slouken@8582
   614
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@8582
   615
{
slouken@8582
   616
    int displayIndex;
slouken@8582
   617
slouken@8582
   618
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@8582
   619
        if (display == &_this->displays[displayIndex]) {
slouken@8582
   620
            return displayIndex;
slouken@8582
   621
        }
slouken@8582
   622
    }
slouken@8582
   623
slouken@8582
   624
    /* Couldn't find the display, just use index 0 */
slouken@8582
   625
    return 0;
slouken@8582
   626
}
slouken@8582
   627
slouken@8582
   628
void *
slouken@8582
   629
SDL_GetDisplayDriverData( int displayIndex )
slouken@8582
   630
{
slouken@8582
   631
    CHECK_DISPLAY_INDEX( displayIndex, NULL );
slouken@8582
   632
slouken@8582
   633
    return _this->displays[displayIndex].driverdata;
slouken@8582
   634
}
slouken@8582
   635
slouken@8582
   636
const char *
slouken@8582
   637
SDL_GetDisplayName(int displayIndex)
slouken@8582
   638
{
slouken@8582
   639
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@8582
   640
slouken@8582
   641
    return _this->displays[displayIndex].name;
slouken@8582
   642
}
slouken@8582
   643
slouken@8582
   644
int
slouken@8582
   645
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@8582
   646
{
slouken@8582
   647
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   648
slouken@8582
   649
    if (rect) {
slouken@8582
   650
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@8582
   651
slouken@8582
   652
        if (_this->GetDisplayBounds) {
slouken@8582
   653
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@8582
   654
                return 0;
slouken@8582
   655
            }
slouken@8582
   656
        }
slouken@8582
   657
slouken@8582
   658
        /* Assume that the displays are left to right */
slouken@8582
   659
        if (displayIndex == 0) {
slouken@8582
   660
            rect->x = 0;
slouken@8582
   661
            rect->y = 0;
slouken@8582
   662
        } else {
slouken@8582
   663
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@8582
   664
            rect->x += rect->w;
slouken@8582
   665
        }
slouken@8582
   666
        rect->w = display->current_mode.w;
slouken@8582
   667
        rect->h = display->current_mode.h;
slouken@8582
   668
    }
slouken@8582
   669
    return 0;
slouken@8582
   670
}
slouken@8582
   671
slouken@8582
   672
SDL_bool
slouken@8582
   673
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@8582
   674
{
slouken@8582
   675
    SDL_DisplayMode *modes;
slouken@8582
   676
    int i, nmodes;
slouken@8582
   677
slouken@8582
   678
    /* Make sure we don't already have the mode in the list */
slouken@8582
   679
    modes = display->display_modes;
slouken@8582
   680
    nmodes = display->num_display_modes;
slouken@8582
   681
    for (i = 0; i < nmodes; ++i) {
slouken@8582
   682
        if (cmpmodes(mode, &modes[i]) == 0) {
slouken@8582
   683
            return SDL_FALSE;
slouken@8582
   684
        }
slouken@8582
   685
    }
slouken@8582
   686
slouken@8582
   687
    /* Go ahead and add the new mode */
slouken@8582
   688
    if (nmodes == display->max_display_modes) {
slouken@8582
   689
        modes =
slouken@8582
   690
            SDL_realloc(modes,
slouken@8582
   691
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@8582
   692
        if (!modes) {
slouken@8582
   693
            return SDL_FALSE;
slouken@8582
   694
        }
slouken@8582
   695
        display->display_modes = modes;
slouken@8582
   696
        display->max_display_modes += 32;
slouken@8582
   697
    }
slouken@8582
   698
    modes[nmodes] = *mode;
slouken@8582
   699
    display->num_display_modes++;
slouken@8582
   700
slouken@8582
   701
    /* Re-sort video modes */
slouken@8582
   702
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@8582
   703
              sizeof(SDL_DisplayMode), cmpmodes);
slouken@8582
   704
slouken@8582
   705
    return SDL_TRUE;
slouken@8582
   706
}
slouken@8582
   707
slouken@8582
   708
static int
slouken@8582
   709
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@8582
   710
{
slouken@8582
   711
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@8582
   712
        _this->GetDisplayModes(_this, display);
slouken@8582
   713
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@8582
   714
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@8582
   715
    }
slouken@8582
   716
    return display->num_display_modes;
slouken@8582
   717
}
slouken@8582
   718
slouken@8582
   719
int
slouken@8582
   720
SDL_GetNumDisplayModes(int displayIndex)
slouken@8582
   721
{
slouken@8582
   722
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   723
slouken@8582
   724
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@8582
   725
}
slouken@8582
   726
slouken@8582
   727
int
slouken@8582
   728
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@8582
   729
{
slouken@8582
   730
    SDL_VideoDisplay *display;
slouken@8582
   731
slouken@8582
   732
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   733
slouken@8582
   734
    display = &_this->displays[displayIndex];
slouken@8582
   735
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@8582
   736
        return SDL_SetError("index must be in the range of 0 - %d",
slouken@8582
   737
                            SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@8582
   738
    }
slouken@8582
   739
    if (mode) {
slouken@8582
   740
        *mode = display->display_modes[index];
slouken@8582
   741
    }
slouken@8582
   742
    return 0;
slouken@8582
   743
}
slouken@8582
   744
slouken@8582
   745
int
slouken@8582
   746
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@8582
   747
{
slouken@8582
   748
    SDL_VideoDisplay *display;
slouken@8582
   749
slouken@8582
   750
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   751
slouken@8582
   752
    display = &_this->displays[displayIndex];
slouken@8582
   753
    if (mode) {
slouken@8582
   754
        *mode = display->desktop_mode;
slouken@8582
   755
    }
slouken@8582
   756
    return 0;
slouken@8582
   757
}
slouken@8582
   758
slouken@8582
   759
int
slouken@8582
   760
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@8582
   761
{
slouken@8582
   762
    SDL_VideoDisplay *display;
slouken@8582
   763
slouken@8582
   764
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   765
slouken@8582
   766
    display = &_this->displays[displayIndex];
slouken@8582
   767
    if (mode) {
slouken@8582
   768
        *mode = display->current_mode;
slouken@8582
   769
    }
slouken@8582
   770
    return 0;
slouken@8582
   771
}
slouken@8582
   772
slouken@8582
   773
static SDL_DisplayMode *
slouken@8582
   774
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@8582
   775
                                    const SDL_DisplayMode * mode,
slouken@8582
   776
                                    SDL_DisplayMode * closest)
slouken@8582
   777
{
slouken@8582
   778
    Uint32 target_format;
slouken@8582
   779
    int target_refresh_rate;
slouken@8582
   780
    int i;
slouken@8582
   781
    SDL_DisplayMode *current, *match;
slouken@8582
   782
slouken@8582
   783
    if (!mode || !closest) {
slouken@8582
   784
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@8582
   785
        return NULL;
slouken@8582
   786
    }
slouken@8582
   787
slouken@8582
   788
    /* Default to the desktop format */
slouken@8582
   789
    if (mode->format) {
slouken@8582
   790
        target_format = mode->format;
slouken@8582
   791
    } else {
slouken@8582
   792
        target_format = display->desktop_mode.format;
slouken@8582
   793
    }
slouken@8582
   794
slouken@8582
   795
    /* Default to the desktop refresh rate */
slouken@8582
   796
    if (mode->refresh_rate) {
slouken@8582
   797
        target_refresh_rate = mode->refresh_rate;
slouken@8582
   798
    } else {
slouken@8582
   799
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@8582
   800
    }
slouken@8582
   801
slouken@8582
   802
    match = NULL;
slouken@8582
   803
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@8582
   804
        current = &display->display_modes[i];
slouken@8582
   805
slouken@8582
   806
        if (current->w && (current->w < mode->w)) {
slouken@8582
   807
            /* Out of sorted modes large enough here */
slouken@8582
   808
            break;
slouken@8582
   809
        }
slouken@8582
   810
        if (current->h && (current->h < mode->h)) {
slouken@8582
   811
            if (current->w && (current->w == mode->w)) {
slouken@8582
   812
                /* Out of sorted modes large enough here */
slouken@8582
   813
                break;
slouken@8582
   814
            }
slouken@8582
   815
            /* Wider, but not tall enough, due to a different
slouken@8582
   816
               aspect ratio. This mode must be skipped, but closer
slouken@8582
   817
               modes may still follow. */
slouken@8582
   818
            continue;
slouken@8582
   819
        }
slouken@8582
   820
        if (!match || current->w < match->w || current->h < match->h) {
slouken@8582
   821
            match = current;
slouken@8582
   822
            continue;
slouken@8582
   823
        }
slouken@8582
   824
        if (current->format != match->format) {
slouken@8582
   825
            /* Sorted highest depth to lowest */
slouken@8582
   826
            if (current->format == target_format ||
slouken@8582
   827
                (SDL_BITSPERPIXEL(current->format) >=
slouken@8582
   828
                 SDL_BITSPERPIXEL(target_format)
slouken@8582
   829
                 && SDL_PIXELTYPE(current->format) ==
slouken@8582
   830
                 SDL_PIXELTYPE(target_format))) {
slouken@8582
   831
                match = current;
slouken@8582
   832
            }
slouken@8582
   833
            continue;
slouken@8582
   834
        }
slouken@8582
   835
        if (current->refresh_rate != match->refresh_rate) {
slouken@8582
   836
            /* Sorted highest refresh to lowest */
slouken@8582
   837
            if (current->refresh_rate >= target_refresh_rate) {
slouken@8582
   838
                match = current;
slouken@8582
   839
            }
slouken@8582
   840
        }
slouken@8582
   841
    }
slouken@8582
   842
    if (match) {
slouken@8582
   843
        if (match->format) {
slouken@8582
   844
            closest->format = match->format;
slouken@8582
   845
        } else {
slouken@8582
   846
            closest->format = mode->format;
slouken@8582
   847
        }
slouken@8582
   848
        if (match->w && match->h) {
slouken@8582
   849
            closest->w = match->w;
slouken@8582
   850
            closest->h = match->h;
slouken@8582
   851
        } else {
slouken@8582
   852
            closest->w = mode->w;
slouken@8582
   853
            closest->h = mode->h;
slouken@8582
   854
        }
slouken@8582
   855
        if (match->refresh_rate) {
slouken@8582
   856
            closest->refresh_rate = match->refresh_rate;
slouken@8582
   857
        } else {
slouken@8582
   858
            closest->refresh_rate = mode->refresh_rate;
slouken@8582
   859
        }
slouken@8582
   860
        closest->driverdata = match->driverdata;
slouken@8582
   861
slouken@8582
   862
        /*
slouken@8582
   863
         * Pick some reasonable defaults if the app and driver don't
slouken@8582
   864
         * care
slouken@8582
   865
         */
slouken@8582
   866
        if (!closest->format) {
slouken@8582
   867
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@8582
   868
        }
slouken@8582
   869
        if (!closest->w) {
slouken@8582
   870
            closest->w = 640;
slouken@8582
   871
        }
slouken@8582
   872
        if (!closest->h) {
slouken@8582
   873
            closest->h = 480;
slouken@8582
   874
        }
slouken@8582
   875
        return closest;
slouken@8582
   876
    }
slouken@8582
   877
    return NULL;
slouken@8582
   878
}
slouken@8582
   879
slouken@8582
   880
SDL_DisplayMode *
slouken@8582
   881
SDL_GetClosestDisplayMode(int displayIndex,
slouken@8582
   882
                          const SDL_DisplayMode * mode,
slouken@8582
   883
                          SDL_DisplayMode * closest)
slouken@8582
   884
{
slouken@8582
   885
    SDL_VideoDisplay *display;
slouken@8582
   886
slouken@8582
   887
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@8582
   888
slouken@8582
   889
    display = &_this->displays[displayIndex];
slouken@8582
   890
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@8582
   891
}
slouken@8582
   892
slouken@8582
   893
static int
slouken@8582
   894
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@8582
   895
{
slouken@8582
   896
    SDL_DisplayMode display_mode;
slouken@8582
   897
    SDL_DisplayMode current_mode;
slouken@8582
   898
slouken@8582
   899
    if (mode) {
slouken@8582
   900
        display_mode = *mode;
slouken@8582
   901
slouken@8582
   902
        /* Default to the current mode */
slouken@8582
   903
        if (!display_mode.format) {
slouken@8582
   904
            display_mode.format = display->current_mode.format;
slouken@8582
   905
        }
slouken@8582
   906
        if (!display_mode.w) {
slouken@8582
   907
            display_mode.w = display->current_mode.w;
slouken@8582
   908
        }
slouken@8582
   909
        if (!display_mode.h) {
slouken@8582
   910
            display_mode.h = display->current_mode.h;
slouken@8582
   911
        }
slouken@8582
   912
        if (!display_mode.refresh_rate) {
slouken@8582
   913
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@8582
   914
        }
slouken@8582
   915
slouken@8582
   916
        /* Get a good video mode, the closest one possible */
slouken@8582
   917
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@8582
   918
            return SDL_SetError("No video mode large enough for %dx%d",
slouken@8582
   919
                                display_mode.w, display_mode.h);
slouken@8582
   920
        }
slouken@8582
   921
    } else {
slouken@8582
   922
        display_mode = display->desktop_mode;
slouken@8582
   923
    }
slouken@8582
   924
slouken@8582
   925
    /* See if there's anything left to do */
slouken@8582
   926
    current_mode = display->current_mode;
slouken@8582
   927
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@8582
   928
        return 0;
slouken@8582
   929
    }
slouken@8582
   930
slouken@8582
   931
    /* Actually change the display mode */
slouken@8582
   932
    if (!_this->SetDisplayMode) {
slouken@8582
   933
        return SDL_SetError("Video driver doesn't support changing display mode");
slouken@8582
   934
    }
slouken@8582
   935
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@8582
   936
        return -1;
slouken@8582
   937
    }
slouken@8582
   938
    display->current_mode = display_mode;
slouken@8582
   939
    return 0;
slouken@8582
   940
}
slouken@8582
   941
slouken@8582
   942
int
slouken@8582
   943
SDL_GetWindowDisplayIndex(SDL_Window * window)
slouken@8582
   944
{
slouken@8582
   945
    int displayIndex;
slouken@8582
   946
    int i, dist;
slouken@8582
   947
    int closest = -1;
slouken@8582
   948
    int closest_dist = 0x7FFFFFFF;
slouken@8582
   949
    SDL_Point center;
slouken@8582
   950
    SDL_Point delta;
slouken@8582
   951
    SDL_Rect rect;
slouken@8582
   952
slouken@8582
   953
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
   954
slouken@8582
   955
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@8582
   956
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@8582
   957
        displayIndex = (window->x & 0xFFFF);
slouken@8582
   958
        if (displayIndex >= _this->num_displays) {
slouken@8582
   959
            displayIndex = 0;
slouken@8582
   960
        }
slouken@8582
   961
        return displayIndex;
slouken@8582
   962
    }
slouken@8582
   963
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@8582
   964
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@8582
   965
        displayIndex = (window->y & 0xFFFF);
slouken@8582
   966
        if (displayIndex >= _this->num_displays) {
slouken@8582
   967
            displayIndex = 0;
slouken@8582
   968
        }
slouken@8582
   969
        return displayIndex;
slouken@8582
   970
    }
slouken@8582
   971
slouken@8582
   972
    /* Find the display containing the window */
slouken@8582
   973
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
   974
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@8582
   975
slouken@8582
   976
        if (display->fullscreen_window == window) {
slouken@8582
   977
            return i;
slouken@8582
   978
        }
slouken@8582
   979
    }
slouken@8582
   980
    center.x = window->x + window->w / 2;
slouken@8582
   981
    center.y = window->y + window->h / 2;
slouken@8582
   982
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
   983
        SDL_GetDisplayBounds(i, &rect);
slouken@8582
   984
        if (SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@8582
   985
            return i;
slouken@8582
   986
        }
slouken@8582
   987
slouken@8582
   988
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@8582
   989
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@8582
   990
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@8582
   991
        if (dist < closest_dist) {
slouken@8582
   992
            closest = i;
slouken@8582
   993
            closest_dist = dist;
slouken@8582
   994
        }
slouken@8582
   995
    }
slouken@8582
   996
    if (closest < 0) {
slouken@8582
   997
        SDL_SetError("Couldn't find any displays");
slouken@8582
   998
    }
slouken@8582
   999
    return closest;
slouken@8582
  1000
}
slouken@8582
  1001
slouken@8582
  1002
SDL_VideoDisplay *
slouken@8582
  1003
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@8582
  1004
{
slouken@8582
  1005
    int displayIndex = SDL_GetWindowDisplayIndex(window);
slouken@8582
  1006
    if (displayIndex >= 0) {
slouken@8582
  1007
        return &_this->displays[displayIndex];
slouken@8582
  1008
    } else {
slouken@8582
  1009
        return NULL;
slouken@8582
  1010
    }
slouken@8582
  1011
}
slouken@8582
  1012
slouken@8582
  1013
int
slouken@8582
  1014
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@8582
  1015
{
slouken@8582
  1016
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1017
slouken@8582
  1018
    if (mode) {
slouken@8582
  1019
        window->fullscreen_mode = *mode;
slouken@8582
  1020
    } else {
slouken@8582
  1021
        SDL_zero(window->fullscreen_mode);
slouken@8582
  1022
    }
slouken@8582
  1023
    return 0;
slouken@8582
  1024
}
slouken@8582
  1025
slouken@8582
  1026
int
slouken@8582
  1027
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@8582
  1028
{
slouken@8582
  1029
    SDL_DisplayMode fullscreen_mode;
slouken@8582
  1030
    SDL_VideoDisplay *display;
slouken@8582
  1031
slouken@8582
  1032
    if (!mode) {
slouken@8582
  1033
      return SDL_InvalidParamError("mode");
slouken@8582
  1034
    }
slouken@8582
  1035
slouken@8582
  1036
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1037
slouken@8582
  1038
    fullscreen_mode = window->fullscreen_mode;
slouken@8582
  1039
    if (!fullscreen_mode.w) {
slouken@8582
  1040
        fullscreen_mode.w = window->w;
slouken@8582
  1041
    }
slouken@8582
  1042
    if (!fullscreen_mode.h) {
slouken@8582
  1043
        fullscreen_mode.h = window->h;
slouken@8582
  1044
    }
slouken@8582
  1045
slouken@8582
  1046
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1047
slouken@8582
  1048
    /* if in desktop size mode, just return the size of the desktop */
slouken@8582
  1049
    if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) == SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@8582
  1050
    {
slouken@8582
  1051
        fullscreen_mode = display->desktop_mode;
slouken@8582
  1052
    }
slouken@8582
  1053
    else if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@8582
  1054
                                             &fullscreen_mode,
slouken@8582
  1055
                                             &fullscreen_mode)) {
slouken@8582
  1056
        return SDL_SetError("Couldn't find display mode match");
slouken@8582
  1057
    }
slouken@8582
  1058
slouken@8582
  1059
    if (mode) {
slouken@8582
  1060
        *mode = fullscreen_mode;
slouken@8582
  1061
    }
slouken@8582
  1062
    return 0;
slouken@8582
  1063
}
slouken@8582
  1064
slouken@8582
  1065
Uint32
slouken@8582
  1066
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@8582
  1067
{
slouken@8582
  1068
    SDL_VideoDisplay *display;
slouken@8582
  1069
slouken@8582
  1070
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@8582
  1071
slouken@8582
  1072
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1073
    return display->current_mode.format;
slouken@8582
  1074
}
slouken@8582
  1075
slouken@8582
  1076
static void
slouken@8582
  1077
SDL_RestoreMousePosition(SDL_Window *window)
slouken@8582
  1078
{
slouken@8582
  1079
    int x, y;
slouken@8582
  1080
slouken@8582
  1081
    if (window == SDL_GetMouseFocus()) {
slouken@8582
  1082
        SDL_GetMouseState(&x, &y);
slouken@8582
  1083
        SDL_WarpMouseInWindow(window, x, y);
slouken@8582
  1084
    }
slouken@8582
  1085
}
slouken@8582
  1086
slouken@8582
  1087
static void
slouken@8582
  1088
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@8582
  1089
{
slouken@8582
  1090
    SDL_VideoDisplay *display;
slouken@8582
  1091
    SDL_Window *other;
slouken@8582
  1092
slouken@8582
  1093
#ifdef __MACOSX__
slouken@8582
  1094
    if (Cocoa_SetWindowFullscreenSpace(window, fullscreen)) {
jorgen@8110
  1095
        window->last_fullscreen_flags = window->flags;
slouken@8582
  1096
        return;
slouken@8582
  1097
    }
slouken@8582
  1098
#endif
slouken@8582
  1099
slouken@8582
  1100
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1101
slouken@8582
  1102
    if (fullscreen) {
slouken@8582
  1103
        /* Hide any other fullscreen windows */
slouken@8582
  1104
        if (display->fullscreen_window &&
slouken@8582
  1105
            display->fullscreen_window != window) {
slouken@8582
  1106
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@8582
  1107
        }
slouken@8582
  1108
    }
slouken@8582
  1109
slouken@8582
  1110
    /* See if anything needs to be done now */
slouken@8582
  1111
    if ((display->fullscreen_window == window) == fullscreen) {
jorgen@8110
  1112
        if ((window->last_fullscreen_flags & FULLSCREEN_MASK) == (window->flags & FULLSCREEN_MASK)) {
jorgen@8110
  1113
            return;
jorgen@8110
  1114
        }
slouken@8582
  1115
    }
slouken@8582
  1116
slouken@8582
  1117
    /* See if there are any fullscreen windows */
slouken@8582
  1118
    for (other = _this->windows; other; other = other->next) {
slouken@8582
  1119
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@8582
  1120
slouken@8582
  1121
        if (other == window) {
slouken@8582
  1122
            setDisplayMode = fullscreen;
slouken@8582
  1123
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@8582
  1124
                   SDL_GetDisplayForWindow(other) == display) {
slouken@8582
  1125
            setDisplayMode = SDL_TRUE;
slouken@8582
  1126
        }
slouken@8582
  1127
slouken@8582
  1128
        if (setDisplayMode) {
slouken@8582
  1129
            SDL_DisplayMode fullscreen_mode;
slouken@8582
  1130
slouken@8582
  1131
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@8582
  1132
                SDL_bool resized = SDL_TRUE;
slouken@8582
  1133
slouken@8582
  1134
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@8582
  1135
                    resized = SDL_FALSE;
slouken@8582
  1136
                }
slouken@8582
  1137
slouken@8582
  1138
                /* only do the mode change if we want exclusive fullscreen */
slouken@8582
  1139
                if ((window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) {
slouken@8582
  1140
                    SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@8582
  1141
                } else {
slouken@8582
  1142
                    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@8582
  1143
                }
slouken@8582
  1144
slouken@8582
  1145
                if (_this->SetWindowFullscreen) {
slouken@8582
  1146
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@8582
  1147
                }
slouken@8582
  1148
                display->fullscreen_window = other;
slouken@8582
  1149
slouken@8582
  1150
                /* Generate a mode change event here */
slouken@8582
  1151
                if (resized) {
slouken@8582
  1152
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@8582
  1153
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@8582
  1154
                } else {
slouken@8582
  1155
                    SDL_OnWindowResized(other);
slouken@8582
  1156
                }
slouken@8582
  1157
slouken@8582
  1158
                SDL_RestoreMousePosition(other);
jorgen@8110
  1159
jorgen@8110
  1160
                window->last_fullscreen_flags = window->flags;
slouken@8582
  1161
                return;
slouken@8582
  1162
            }
slouken@8582
  1163
        }
slouken@8582
  1164
    }
slouken@8582
  1165
slouken@8582
  1166
    /* Nope, restore the desktop mode */
slouken@8582
  1167
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@8582
  1168
slouken@8582
  1169
    if (_this->SetWindowFullscreen) {
slouken@8582
  1170
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@8582
  1171
    }
slouken@8582
  1172
    display->fullscreen_window = NULL;
slouken@8582
  1173
slouken@8582
  1174
    /* Generate a mode change event here */
slouken@8582
  1175
    SDL_OnWindowResized(window);
slouken@8582
  1176
slouken@8582
  1177
    /* Restore the cursor position */
slouken@8582
  1178
    SDL_RestoreMousePosition(window);
jorgen@8110
  1179
jorgen@8110
  1180
    window->last_fullscreen_flags = window->flags;
slouken@8582
  1181
}
slouken@8582
  1182
slouken@8582
  1183
#define CREATE_FLAGS \
slouken@8582
  1184
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI)
slouken@8582
  1185
slouken@8582
  1186
static void
slouken@8582
  1187
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@8582
  1188
{
slouken@8582
  1189
    window->windowed.x = window->x;
slouken@8582
  1190
    window->windowed.y = window->y;
slouken@8582
  1191
    window->windowed.w = window->w;
slouken@8582
  1192
    window->windowed.h = window->h;
slouken@8582
  1193
slouken@8582
  1194
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@8582
  1195
        SDL_MaximizeWindow(window);
slouken@8582
  1196
    }
slouken@8582
  1197
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@8582
  1198
        SDL_MinimizeWindow(window);
slouken@8582
  1199
    }
slouken@8582
  1200
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@8582
  1201
        SDL_SetWindowFullscreen(window, flags);
slouken@8582
  1202
    }
slouken@8582
  1203
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@8582
  1204
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@8582
  1205
    }
slouken@8582
  1206
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@8582
  1207
        SDL_ShowWindow(window);
slouken@8582
  1208
    }
slouken@8582
  1209
}
slouken@8582
  1210
slouken@8582
  1211
SDL_Window *
slouken@8582
  1212
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@8582
  1213
{
slouken@8582
  1214
    SDL_Window *window;
slouken@8582
  1215
    const char *hint;
slouken@8582
  1216
slouken@8582
  1217
    if (!_this) {
slouken@8582
  1218
        /* Initialize the video system if needed */
slouken@8582
  1219
        if (SDL_VideoInit(NULL) < 0) {
slouken@8582
  1220
            return NULL;
slouken@8582
  1221
        }
slouken@8582
  1222
    }
slouken@8582
  1223
slouken@8582
  1224
    /* Some platforms can't create zero-sized windows */
slouken@8582
  1225
    if (w < 1) {
slouken@8582
  1226
        w = 1;
slouken@8582
  1227
    }
slouken@8582
  1228
    if (h < 1) {
slouken@8582
  1229
        h = 1;
slouken@8582
  1230
    }
slouken@8582
  1231
slouken@8582
  1232
    /* Some platforms have OpenGL enabled by default */
slouken@8582
  1233
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@8582
  1234
    flags |= SDL_WINDOW_OPENGL;
slouken@8582
  1235
#endif
slouken@8582
  1236
    if (flags & SDL_WINDOW_OPENGL) {
slouken@8582
  1237
        if (!_this->GL_CreateContext) {
slouken@8582
  1238
            SDL_SetError("No OpenGL support in video driver");
slouken@8582
  1239
            return NULL;
slouken@8582
  1240
        }
slouken@8582
  1241
        if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@8582
  1242
            return NULL;
slouken@8582
  1243
        }
slouken@8582
  1244
    }
slouken@8582
  1245
slouken@8582
  1246
    /* Unless the user has specified the high-DPI disabling hint, respect the
slouken@8582
  1247
     * SDL_WINDOW_ALLOW_HIGHDPI flag.
slouken@8582
  1248
     */
slouken@8582
  1249
    if (flags & SDL_WINDOW_ALLOW_HIGHDPI) {
slouken@8582
  1250
        hint = SDL_GetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED);
slouken@8582
  1251
        if (hint && SDL_atoi(hint) > 0) {
slouken@8582
  1252
            flags &= ~SDL_WINDOW_ALLOW_HIGHDPI;
slouken@8582
  1253
        }
slouken@8582
  1254
    }
slouken@8582
  1255
slouken@8582
  1256
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@8582
  1257
    if (!window) {
slouken@8582
  1258
        SDL_OutOfMemory();
slouken@8582
  1259
        return NULL;
slouken@8582
  1260
    }
slouken@8582
  1261
    window->magic = &_this->window_magic;
slouken@8582
  1262
    window->id = _this->next_object_id++;
slouken@8582
  1263
    window->x = x;
slouken@8582
  1264
    window->y = y;
slouken@8582
  1265
    window->w = w;
slouken@8582
  1266
    window->h = h;
slouken@8582
  1267
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@8582
  1268
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1269
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@8582
  1270
        int displayIndex;
slouken@8582
  1271
        SDL_Rect bounds;
slouken@8582
  1272
slouken@8582
  1273
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@8582
  1274
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@8582
  1275
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@8582
  1276
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@8582
  1277
        }
slouken@8582
  1278
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1279
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@8582
  1280
        }
slouken@8582
  1281
    }
slouken@8582
  1282
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
jorgen@8110
  1283
    window->last_fullscreen_flags = window->flags;
slouken@8582
  1284
    window->brightness = 1.0f;
slouken@8582
  1285
    window->next = _this->windows;
jorgen@8112
  1286
    window->is_destroying = SDL_FALSE;
slouken@8582
  1287
slouken@8582
  1288
    if (_this->windows) {
slouken@8582
  1289
        _this->windows->prev = window;
slouken@8582
  1290
    }
slouken@8582
  1291
    _this->windows = window;
slouken@8582
  1292
slouken@8582
  1293
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@8582
  1294
        SDL_DestroyWindow(window);
slouken@8582
  1295
        return NULL;
slouken@8582
  1296
    }
slouken@8582
  1297
slouken@8582
  1298
    if (title) {
slouken@8582
  1299
        SDL_SetWindowTitle(window, title);
slouken@8582
  1300
    }
slouken@8582
  1301
    SDL_FinishWindowCreation(window, flags);
slouken@8582
  1302
slouken@8582
  1303
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@8582
  1304
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@8582
  1305
slouken@8582
  1306
    return window;
slouken@8582
  1307
}
slouken@8582
  1308
slouken@8582
  1309
SDL_Window *
slouken@8582
  1310
SDL_CreateWindowFrom(const void *data)
slouken@8582
  1311
{
slouken@8582
  1312
    SDL_Window *window;
slouken@8582
  1313
slouken@8582
  1314
    if (!_this) {
slouken@8582
  1315
        SDL_UninitializedVideo();
slouken@8582
  1316
        return NULL;
slouken@8582
  1317
    }
slouken@8582
  1318
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@8582
  1319
    if (!window) {
slouken@8582
  1320
        SDL_OutOfMemory();
slouken@8582
  1321
        return NULL;
slouken@8582
  1322
    }
slouken@8582
  1323
    window->magic = &_this->window_magic;
slouken@8582
  1324
    window->id = _this->next_object_id++;
slouken@8582
  1325
    window->flags = SDL_WINDOW_FOREIGN;
jorgen@8110
  1326
    window->last_fullscreen_flags = window->flags;
jorgen@8112
  1327
    window->is_destroying = SDL_FALSE;
slouken@8582
  1328
    window->brightness = 1.0f;
slouken@8582
  1329
    window->next = _this->windows;
slouken@8582
  1330
    if (_this->windows) {
slouken@8582
  1331
        _this->windows->prev = window;
slouken@8582
  1332
    }
slouken@8582
  1333
    _this->windows = window;
slouken@8582
  1334
slouken@8582
  1335
    if (!_this->CreateWindowFrom ||
slouken@8582
  1336
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@8582
  1337
        SDL_DestroyWindow(window);
slouken@8582
  1338
        return NULL;
slouken@8582
  1339
    }
slouken@8582
  1340
    return window;
slouken@8582
  1341
}
slouken@8582
  1342
slouken@8582
  1343
int
slouken@8582
  1344
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@8582
  1345
{
slouken@8582
  1346
    char *title = window->title;
slouken@8582
  1347
    SDL_Surface *icon = window->icon;
slouken@8582
  1348
slouken@8582
  1349
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@8582
  1350
        return SDL_SetError("No OpenGL support in video driver");
slouken@8582
  1351
    }
slouken@8582
  1352
slouken@8582
  1353
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@8582
  1354
        /* Can't destroy and re-create foreign windows, hrm */
slouken@8582
  1355
        flags |= SDL_WINDOW_FOREIGN;
slouken@8582
  1356
    } else {
slouken@8582
  1357
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@8582
  1358
    }
slouken@8582
  1359
slouken@8582
  1360
    /* Restore video mode, etc. */
slouken@8582
  1361
    SDL_HideWindow(window);
slouken@8582
  1362
slouken@8582
  1363
    /* Tear down the old native window */
slouken@8582
  1364
    if (window->surface) {
slouken@8582
  1365
        window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  1366
        SDL_FreeSurface(window->surface);
slouken@8582
  1367
    }
slouken@8582
  1368
    if (_this->DestroyWindowFramebuffer) {
slouken@8582
  1369
        _this->DestroyWindowFramebuffer(_this, window);
slouken@8582
  1370
    }
slouken@8582
  1371
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@8582
  1372
        _this->DestroyWindow(_this, window);
slouken@8582
  1373
    }
slouken@8582
  1374
slouken@8582
  1375
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@8582
  1376
        if (flags & SDL_WINDOW_OPENGL) {
slouken@8582
  1377
            if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@8582
  1378
                return -1;
slouken@8582
  1379
            }
slouken@8582
  1380
        } else {
slouken@8582
  1381
            SDL_GL_UnloadLibrary();
slouken@8582
  1382
        }
slouken@8582
  1383
    }
slouken@8582
  1384
slouken@8582
  1385
    window->title = NULL;
slouken@8582
  1386
    window->icon = NULL;
slouken@8582
  1387
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
jorgen@8110
  1388
    window->last_fullscreen_flags = window->flags;
jorgen@8112
  1389
    window->is_destroying = SDL_FALSE;
slouken@8582
  1390
slouken@8582
  1391
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@8582
  1392
        if (_this->CreateWindow(_this, window) < 0) {
slouken@8582
  1393
            if (flags & SDL_WINDOW_OPENGL) {
slouken@8582
  1394
                SDL_GL_UnloadLibrary();
slouken@8582
  1395
            }
slouken@8582
  1396
            return -1;
slouken@8582
  1397
        }
slouken@8582
  1398
    }
slouken@8582
  1399
slouken@8582
  1400
    if (title) {
slouken@8582
  1401
        SDL_SetWindowTitle(window, title);
slouken@8582
  1402
        SDL_free(title);
slouken@8582
  1403
    }
slouken@8582
  1404
    if (icon) {
slouken@8582
  1405
        SDL_SetWindowIcon(window, icon);
slouken@8582
  1406
        SDL_FreeSurface(icon);
slouken@8582
  1407
    }
slouken@8582
  1408
    SDL_FinishWindowCreation(window, flags);
slouken@8582
  1409
slouken@8582
  1410
    return 0;
slouken@8582
  1411
}
slouken@8582
  1412
slouken@8582
  1413
Uint32
slouken@8582
  1414
SDL_GetWindowID(SDL_Window * window)
slouken@8582
  1415
{
slouken@8582
  1416
    CHECK_WINDOW_MAGIC(window, 0);
slouken@8582
  1417
slouken@8582
  1418
    return window->id;
slouken@8582
  1419
}
slouken@8582
  1420
slouken@8582
  1421
SDL_Window *
slouken@8582
  1422
SDL_GetWindowFromID(Uint32 id)
slouken@8582
  1423
{
slouken@8582
  1424
    SDL_Window *window;
slouken@8582
  1425
slouken@8582
  1426
    if (!_this) {
slouken@8582
  1427
        return NULL;
slouken@8582
  1428
    }
slouken@8582
  1429
    for (window = _this->windows; window; window = window->next) {
slouken@8582
  1430
        if (window->id == id) {
slouken@8582
  1431
            return window;
slouken@8582
  1432
        }
slouken@8582
  1433
    }
slouken@8582
  1434
    return NULL;
slouken@8582
  1435
}
slouken@8582
  1436
slouken@8582
  1437
Uint32
slouken@8582
  1438
SDL_GetWindowFlags(SDL_Window * window)
slouken@8582
  1439
{
slouken@8582
  1440
    CHECK_WINDOW_MAGIC(window, 0);
slouken@8582
  1441
slouken@8582
  1442
    return window->flags;
slouken@8582
  1443
}
slouken@8582
  1444
slouken@8582
  1445
void
slouken@8582
  1446
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@8582
  1447
{
slouken@8582
  1448
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1449
slouken@8582
  1450
    if (title == window->title) {
slouken@8582
  1451
        return;
slouken@8582
  1452
    }
slouken@8582
  1453
    SDL_free(window->title);
slouken@8582
  1454
    if (title && *title) {
slouken@8582
  1455
        window->title = SDL_strdup(title);
slouken@8582
  1456
    } else {
slouken@8582
  1457
        window->title = NULL;
slouken@8582
  1458
    }
slouken@8582
  1459
slouken@8582
  1460
    if (_this->SetWindowTitle) {
slouken@8582
  1461
        _this->SetWindowTitle(_this, window);
slouken@8582
  1462
    }
slouken@8582
  1463
}
slouken@8582
  1464
slouken@8582
  1465
const char *
slouken@8582
  1466
SDL_GetWindowTitle(SDL_Window * window)
slouken@8582
  1467
{
slouken@8582
  1468
    CHECK_WINDOW_MAGIC(window, "");
slouken@8582
  1469
slouken@8582
  1470
    return window->title ? window->title : "";
slouken@8582
  1471
}
slouken@8582
  1472
slouken@8582
  1473
void
slouken@8582
  1474
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@8582
  1475
{
slouken@8582
  1476
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1477
slouken@8582
  1478
    if (!icon) {
slouken@8582
  1479
        return;
slouken@8582
  1480
    }
slouken@8582
  1481
slouken@8582
  1482
    SDL_FreeSurface(window->icon);
slouken@8582
  1483
slouken@8582
  1484
    /* Convert the icon into ARGB8888 */
slouken@8582
  1485
    window->icon = SDL_ConvertSurfaceFormat(icon, SDL_PIXELFORMAT_ARGB8888, 0);
slouken@8582
  1486
    if (!window->icon) {
slouken@8582
  1487
        return;
slouken@8582
  1488
    }
slouken@8582
  1489
slouken@8582
  1490
    if (_this->SetWindowIcon) {
slouken@8582
  1491
        _this->SetWindowIcon(_this, window, window->icon);
slouken@8582
  1492
    }
slouken@8582
  1493
}
slouken@8582
  1494
slouken@8582
  1495
void*
slouken@8582
  1496
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@8582
  1497
{
slouken@8582
  1498
    SDL_WindowUserData *prev, *data;
slouken@8582
  1499
slouken@8582
  1500
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1501
slouken@8582
  1502
    /* Input validation */
slouken@8582
  1503
    if (name == NULL || name[0] == '\0') {
slouken@8582
  1504
      SDL_InvalidParamError("name");
slouken@8582
  1505
      return NULL;
slouken@8582
  1506
    }
slouken@8582
  1507
slouken@8582
  1508
    /* See if the named data already exists */
slouken@8582
  1509
    prev = NULL;
slouken@8582
  1510
    for (data = window->data; data; prev = data, data = data->next) {
slouken@8582
  1511
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@8582
  1512
            void *last_value = data->data;
slouken@8582
  1513
slouken@8582
  1514
            if (userdata) {
slouken@8582
  1515
                /* Set the new value */
slouken@8582
  1516
                data->data = userdata;
slouken@8582
  1517
            } else {
slouken@8582
  1518
                /* Delete this value */
slouken@8582
  1519
                if (prev) {
slouken@8582
  1520
                    prev->next = data->next;
slouken@8582
  1521
                } else {
slouken@8582
  1522
                    window->data = data->next;
slouken@8582
  1523
                }
slouken@8582
  1524
                SDL_free(data->name);
slouken@8582
  1525
                SDL_free(data);
slouken@8582
  1526
            }
slouken@8582
  1527
            return last_value;
slouken@8582
  1528
        }
slouken@8582
  1529
    }
slouken@8582
  1530
slouken@8582
  1531
    /* Add new data to the window */
slouken@8582
  1532
    if (userdata) {
slouken@8582
  1533
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@8582
  1534
        data->name = SDL_strdup(name);
slouken@8582
  1535
        data->data = userdata;
slouken@8582
  1536
        data->next = window->data;
slouken@8582
  1537
        window->data = data;
slouken@8582
  1538
    }
slouken@8582
  1539
    return NULL;
slouken@8582
  1540
}
slouken@8582
  1541
slouken@8582
  1542
void *
slouken@8582
  1543
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@8582
  1544
{
slouken@8582
  1545
    SDL_WindowUserData *data;
slouken@8582
  1546
slouken@8582
  1547
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1548
slouken@8582
  1549
    /* Input validation */
slouken@8582
  1550
    if (name == NULL || name[0] == '\0') {
slouken@8582
  1551
      SDL_InvalidParamError("name");
slouken@8582
  1552
      return NULL;
slouken@8582
  1553
    }
slouken@8582
  1554
slouken@8582
  1555
    for (data = window->data; data; data = data->next) {
slouken@8582
  1556
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@8582
  1557
            return data->data;
slouken@8582
  1558
        }
slouken@8582
  1559
    }
slouken@8582
  1560
    return NULL;
slouken@8582
  1561
}
slouken@8582
  1562
slouken@8582
  1563
void
slouken@8582
  1564
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@8582
  1565
{
slouken@8582
  1566
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1567
slouken@8582
  1568
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1569
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@8582
  1570
        int displayIndex;
slouken@8582
  1571
        SDL_Rect bounds;
slouken@8582
  1572
slouken@8582
  1573
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@8582
  1574
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@8582
  1575
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@8582
  1576
            x = bounds.x + (bounds.w - window->w) / 2;
slouken@8582
  1577
        }
slouken@8582
  1578
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1579
            y = bounds.y + (bounds.h - window->h) / 2;
slouken@8582
  1580
        }
slouken@8582
  1581
    }
slouken@8582
  1582
slouken@8582
  1583
    if ((window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1584
        if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@8582
  1585
            window->windowed.x = x;
slouken@8582
  1586
        }
slouken@8582
  1587
        if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@8582
  1588
            window->windowed.y = y;
slouken@8582
  1589
        }
slouken@8582
  1590
    } else {
slouken@8582
  1591
        if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@8582
  1592
            window->x = x;
slouken@8582
  1593
        }
slouken@8582
  1594
        if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@8582
  1595
            window->y = y;
slouken@8582
  1596
        }
slouken@8582
  1597
slouken@8582
  1598
        if (_this->SetWindowPosition) {
slouken@8582
  1599
            _this->SetWindowPosition(_this, window);
slouken@8582
  1600
        }
slouken@8582
  1601
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@8582
  1602
    }
slouken@8582
  1603
}
slouken@8582
  1604
slouken@8582
  1605
void
slouken@8582
  1606
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@8582
  1607
{
slouken@8582
  1608
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1609
slouken@8582
  1610
    /* Fullscreen windows are always at their display's origin */
slouken@8582
  1611
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@8582
  1612
        if (x) {
slouken@8582
  1613
            *x = 0;
slouken@8582
  1614
        }
slouken@8582
  1615
        if (y) {
slouken@8582
  1616
            *y = 0;
slouken@8582
  1617
        }
slouken@8582
  1618
    } else {
slouken@8582
  1619
        if (x) {
slouken@8582
  1620
            *x = window->x;
slouken@8582
  1621
        }
slouken@8582
  1622
        if (y) {
slouken@8582
  1623
            *y = window->y;
slouken@8582
  1624
        }
slouken@8582
  1625
    }
slouken@8582
  1626
}
slouken@8582
  1627
slouken@8582
  1628
void
slouken@8582
  1629
SDL_SetWindowBordered(SDL_Window * window, SDL_bool bordered)
slouken@8582
  1630
{
slouken@8582
  1631
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1632
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1633
        const int want = (bordered != SDL_FALSE);  /* normalize the flag. */
slouken@8582
  1634
        const int have = ((window->flags & SDL_WINDOW_BORDERLESS) == 0);
slouken@8582
  1635
        if ((want != have) && (_this->SetWindowBordered)) {
slouken@8582
  1636
            if (want) {
slouken@8582
  1637
                window->flags &= ~SDL_WINDOW_BORDERLESS;
slouken@8582
  1638
            } else {
slouken@8582
  1639
                window->flags |= SDL_WINDOW_BORDERLESS;
slouken@8582
  1640
            }
slouken@8582
  1641
            _this->SetWindowBordered(_this, window, (SDL_bool) want);
slouken@8582
  1642
        }
slouken@8582
  1643
    }
slouken@8582
  1644
}
slouken@8582
  1645
slouken@8582
  1646
void
slouken@8582
  1647
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@8582
  1648
{
slouken@8582
  1649
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1650
    if (w <= 0) {
slouken@8582
  1651
        SDL_InvalidParamError("w");
slouken@8582
  1652
        return;
slouken@8582
  1653
    }
slouken@8582
  1654
    if (h <= 0) {
slouken@8582
  1655
        SDL_InvalidParamError("h");
slouken@8582
  1656
        return;
slouken@8582
  1657
    }
slouken@8582
  1658
slouken@8582
  1659
    /* Make sure we don't exceed any window size limits */
slouken@8582
  1660
    if (window->min_w && w < window->min_w)
slouken@8582
  1661
    {
slouken@8582
  1662
        w = window->min_w;
slouken@8582
  1663
    }
slouken@8582
  1664
    if (window->max_w && w > window->max_w)
slouken@8582
  1665
    {
slouken@8582
  1666
        w = window->max_w;
slouken@8582
  1667
    }
slouken@8582
  1668
    if (window->min_h && h < window->min_h)
slouken@8582
  1669
    {
slouken@8582
  1670
        h = window->min_h;
slouken@8582
  1671
    }
slouken@8582
  1672
    if (window->max_h && h > window->max_h)
slouken@8582
  1673
    {
slouken@8582
  1674
        h = window->max_h;
slouken@8582
  1675
    }
slouken@8582
  1676
slouken@8582
  1677
    /* FIXME: Should this change fullscreen modes? */
slouken@8582
  1678
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@8582
  1679
        window->windowed.w = w;
slouken@8582
  1680
        window->windowed.h = h;
slouken@8582
  1681
    } else {
slouken@8582
  1682
        window->w = w;
slouken@8582
  1683
        window->h = h;
slouken@8582
  1684
        if (_this->SetWindowSize) {
slouken@8582
  1685
            _this->SetWindowSize(_this, window);
slouken@8582
  1686
        }
slouken@8582
  1687
        if (window->w == w && window->h == h) {
slouken@8582
  1688
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@8582
  1689
            SDL_OnWindowResized(window);
slouken@8582
  1690
        }
slouken@8582
  1691
    }
slouken@8582
  1692
}
slouken@8582
  1693
slouken@8582
  1694
void
slouken@8582
  1695
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@8582
  1696
{
slouken@8582
  1697
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1698
    if (w) {
slouken@8582
  1699
        *w = window->w;
slouken@8582
  1700
    }
slouken@8582
  1701
    if (h) {
slouken@8582
  1702
        *h = window->h;
slouken@8582
  1703
    }
slouken@8582
  1704
}
slouken@8582
  1705
slouken@8582
  1706
void
slouken@8582
  1707
SDL_SetWindowMinimumSize(SDL_Window * window, int min_w, int min_h)
slouken@8582
  1708
{
slouken@8582
  1709
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1710
    if (min_w <= 0) {
slouken@8582
  1711
        SDL_InvalidParamError("min_w");
slouken@8582
  1712
        return;
slouken@8582
  1713
    }
slouken@8582
  1714
    if (min_h <= 0) {
slouken@8582
  1715
        SDL_InvalidParamError("min_h");
slouken@8582
  1716
        return;
slouken@8582
  1717
    }
slouken@8582
  1718
slouken@8582
  1719
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1720
        window->min_w = min_w;
slouken@8582
  1721
        window->min_h = min_h;
slouken@8582
  1722
        if (_this->SetWindowMinimumSize) {
slouken@8582
  1723
            _this->SetWindowMinimumSize(_this, window);
slouken@8582
  1724
        }
slouken@8582
  1725
        /* Ensure that window is not smaller than minimal size */
slouken@8582
  1726
        SDL_SetWindowSize(window, SDL_max(window->w, window->min_w), SDL_max(window->h, window->min_h));
slouken@8582
  1727
    }
slouken@8582
  1728
}
slouken@8582
  1729
slouken@8582
  1730
void
slouken@8582
  1731
SDL_GetWindowMinimumSize(SDL_Window * window, int *min_w, int *min_h)
slouken@8582
  1732
{
slouken@8582
  1733
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1734
    if (min_w) {
slouken@8582
  1735
        *min_w = window->min_w;
slouken@8582
  1736
    }
slouken@8582
  1737
    if (min_h) {
slouken@8582
  1738
        *min_h = window->min_h;
slouken@8582
  1739
    }
slouken@8582
  1740
}
slouken@8582
  1741
slouken@8582
  1742
void
slouken@8582
  1743
SDL_SetWindowMaximumSize(SDL_Window * window, int max_w, int max_h)
slouken@8582
  1744
{
slouken@8582
  1745
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1746
    if (max_w <= 0) {
slouken@8582
  1747
        SDL_InvalidParamError("max_w");
slouken@8582
  1748
        return;
slouken@8582
  1749
    }
slouken@8582
  1750
    if (max_h <= 0) {
slouken@8582
  1751
        SDL_InvalidParamError("max_h");
slouken@8582
  1752
        return;
slouken@8582
  1753
    }
slouken@8582
  1754
slouken@8582
  1755
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1756
        window->max_w = max_w;
slouken@8582
  1757
        window->max_h = max_h;
slouken@8582
  1758
        if (_this->SetWindowMaximumSize) {
slouken@8582
  1759
            _this->SetWindowMaximumSize(_this, window);
slouken@8582
  1760
        }
slouken@8582
  1761
        /* Ensure that window is not larger than maximal size */
slouken@8582
  1762
        SDL_SetWindowSize(window, SDL_min(window->w, window->max_w), SDL_min(window->h, window->max_h));
slouken@8582
  1763
    }
slouken@8582
  1764
}
slouken@8582
  1765
slouken@8582
  1766
void
slouken@8582
  1767
SDL_GetWindowMaximumSize(SDL_Window * window, int *max_w, int *max_h)
slouken@8582
  1768
{
slouken@8582
  1769
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1770
    if (max_w) {
slouken@8582
  1771
        *max_w = window->max_w;
slouken@8582
  1772
    }
slouken@8582
  1773
    if (max_h) {
slouken@8582
  1774
        *max_h = window->max_h;
slouken@8582
  1775
    }
slouken@8582
  1776
}
slouken@8582
  1777
slouken@8582
  1778
void
slouken@8582
  1779
SDL_ShowWindow(SDL_Window * window)
slouken@8582
  1780
{
slouken@8582
  1781
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1782
slouken@8582
  1783
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@8582
  1784
        return;
slouken@8582
  1785
    }
slouken@8582
  1786
slouken@8582
  1787
    if (_this->ShowWindow) {
slouken@8582
  1788
        _this->ShowWindow(_this, window);
slouken@8582
  1789
    }
slouken@8582
  1790
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@8582
  1791
}
slouken@8582
  1792
slouken@8582
  1793
void
slouken@8582
  1794
SDL_HideWindow(SDL_Window * window)
slouken@8582
  1795
{
slouken@8582
  1796
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1797
slouken@8582
  1798
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@8582
  1799
        return;
slouken@8582
  1800
    }
slouken@8582
  1801
slouken@8582
  1802
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  1803
slouken@8582
  1804
    if (_this->HideWindow) {
slouken@8582
  1805
        _this->HideWindow(_this, window);
slouken@8582
  1806
    }
slouken@8582
  1807
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@8582
  1808
}
slouken@8582
  1809
slouken@8582
  1810
void
slouken@8582
  1811
SDL_RaiseWindow(SDL_Window * window)
slouken@8582
  1812
{
slouken@8582
  1813
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1814
slouken@8582
  1815
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@8582
  1816
        return;
slouken@8582
  1817
    }
slouken@8582
  1818
    if (_this->RaiseWindow) {
slouken@8582
  1819
        _this->RaiseWindow(_this, window);
slouken@8582
  1820
    }
slouken@8582
  1821
}
slouken@8582
  1822
slouken@8582
  1823
void
slouken@8582
  1824
SDL_MaximizeWindow(SDL_Window * window)
slouken@8582
  1825
{
slouken@8582
  1826
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1827
slouken@8582
  1828
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@8582
  1829
        return;
slouken@8582
  1830
    }
slouken@8582
  1831
slouken@8582
  1832
    /* !!! FIXME: should this check if the window is resizable? */
slouken@8582
  1833
slouken@8582
  1834
    if (_this->MaximizeWindow) {
slouken@8582
  1835
        _this->MaximizeWindow(_this, window);
slouken@8582
  1836
    }
slouken@8582
  1837
}
slouken@8582
  1838
slouken@8582
  1839
void
slouken@8582
  1840
SDL_MinimizeWindow(SDL_Window * window)
slouken@8582
  1841
{
slouken@8582
  1842
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1843
slouken@8582
  1844
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@8582
  1845
        return;
slouken@8582
  1846
    }
slouken@8582
  1847
slouken@8582
  1848
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  1849
slouken@8582
  1850
    if (_this->MinimizeWindow) {
slouken@8582
  1851
        _this->MinimizeWindow(_this, window);
slouken@8582
  1852
    }
slouken@8582
  1853
}
slouken@8582
  1854
slouken@8582
  1855
void
slouken@8582
  1856
SDL_RestoreWindow(SDL_Window * window)
slouken@8582
  1857
{
slouken@8582
  1858
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  1859
slouken@8582
  1860
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@8582
  1861
        return;
slouken@8582
  1862
    }
slouken@8582
  1863
slouken@8582
  1864
    if (_this->RestoreWindow) {
slouken@8582
  1865
        _this->RestoreWindow(_this, window);
slouken@8582
  1866
    }
slouken@8582
  1867
}
slouken@8582
  1868
slouken@8582
  1869
int
slouken@8582
  1870
SDL_SetWindowFullscreen(SDL_Window * window, Uint32 flags)
slouken@8582
  1871
{
slouken@8582
  1872
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1873
slouken@8582
  1874
    flags &= FULLSCREEN_MASK;
slouken@8582
  1875
slouken@8582
  1876
    if ( flags == (window->flags & FULLSCREEN_MASK) ) {
slouken@8582
  1877
        return 0;
slouken@8582
  1878
    }
slouken@8582
  1879
slouken@8582
  1880
    /* clear the previous flags and OR in the new ones */
slouken@8582
  1881
    window->flags &= ~FULLSCREEN_MASK;
slouken@8582
  1882
    window->flags |= flags;
slouken@8582
  1883
slouken@8582
  1884
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@8582
  1885
slouken@8582
  1886
    return 0;
slouken@8582
  1887
}
slouken@8582
  1888
slouken@8582
  1889
static SDL_Surface *
slouken@8582
  1890
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@8582
  1891
{
slouken@8582
  1892
    Uint32 format;
slouken@8582
  1893
    void *pixels;
slouken@8582
  1894
    int pitch;
slouken@8582
  1895
    int bpp;
slouken@8582
  1896
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@8582
  1897
slouken@8582
  1898
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@8582
  1899
        return NULL;
slouken@8582
  1900
    }
slouken@8582
  1901
slouken@8582
  1902
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@8582
  1903
        return NULL;
slouken@8582
  1904
    }
slouken@8582
  1905
slouken@8582
  1906
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@8582
  1907
        return NULL;
slouken@8582
  1908
    }
slouken@8582
  1909
slouken@8582
  1910
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@8582
  1911
}
slouken@8582
  1912
slouken@8582
  1913
SDL_Surface *
slouken@8582
  1914
SDL_GetWindowSurface(SDL_Window * window)
slouken@8582
  1915
{
slouken@8582
  1916
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1917
slouken@8582
  1918
    if (!window->surface_valid) {
slouken@8582
  1919
        if (window->surface) {
slouken@8582
  1920
            window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  1921
            SDL_FreeSurface(window->surface);
slouken@8582
  1922
        }
slouken@8582
  1923
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@8582
  1924
        if (window->surface) {
slouken@8582
  1925
            window->surface_valid = SDL_TRUE;
slouken@8582
  1926
            window->surface->flags |= SDL_DONTFREE;
slouken@8582
  1927
        }
slouken@8582
  1928
    }
slouken@8582
  1929
    return window->surface;
slouken@8582
  1930
}
slouken@8582
  1931
slouken@8582
  1932
int
slouken@8582
  1933
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@8582
  1934
{
slouken@8582
  1935
    SDL_Rect full_rect;
slouken@8582
  1936
slouken@8582
  1937
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1938
slouken@8582
  1939
    full_rect.x = 0;
slouken@8582
  1940
    full_rect.y = 0;
slouken@8582
  1941
    full_rect.w = window->w;
slouken@8582
  1942
    full_rect.h = window->h;
slouken@8582
  1943
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@8582
  1944
}
slouken@8582
  1945
slouken@8582
  1946
int
slouken@8582
  1947
SDL_UpdateWindowSurfaceRects(SDL_Window * window, const SDL_Rect * rects,
slouken@8582
  1948
                             int numrects)
slouken@8582
  1949
{
slouken@8582
  1950
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1951
slouken@8582
  1952
    if (!window->surface_valid) {
slouken@8582
  1953
        return SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@8582
  1954
    }
slouken@8582
  1955
slouken@8582
  1956
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@8582
  1957
}
slouken@8582
  1958
slouken@8582
  1959
int
slouken@8582
  1960
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@8582
  1961
{
slouken@8582
  1962
    Uint16 ramp[256];
slouken@8582
  1963
    int status;
slouken@8582
  1964
slouken@8582
  1965
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1966
slouken@8582
  1967
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@8582
  1968
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@8582
  1969
    if (status == 0) {
slouken@8582
  1970
        window->brightness = brightness;
slouken@8582
  1971
    }
slouken@8582
  1972
    return status;
slouken@8582
  1973
}
slouken@8582
  1974
slouken@8582
  1975
float
slouken@8582
  1976
SDL_GetWindowBrightness(SDL_Window * window)
slouken@8582
  1977
{
slouken@8582
  1978
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@8582
  1979
slouken@8582
  1980
    return window->brightness;
slouken@8582
  1981
}
slouken@8582
  1982
slouken@8582
  1983
int
slouken@8582
  1984
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@8582
  1985
                                            const Uint16 * green,
slouken@8582
  1986
                                            const Uint16 * blue)
slouken@8582
  1987
{
slouken@8582
  1988
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1989
slouken@8582
  1990
    if (!_this->SetWindowGammaRamp) {
slouken@8582
  1991
        return SDL_Unsupported();
slouken@8582
  1992
    }
slouken@8582
  1993
slouken@8582
  1994
    if (!window->gamma) {
slouken@8582
  1995
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@8582
  1996
            return -1;
slouken@8582
  1997
        }
slouken@8582
  1998
    }
slouken@8582
  1999
slouken@8582
  2000
    if (red) {
slouken@8582
  2001
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@8582
  2002
    }
slouken@8582
  2003
    if (green) {
slouken@8582
  2004
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@8582
  2005
    }
slouken@8582
  2006
    if (blue) {
slouken@8582
  2007
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@8582
  2008
    }
slouken@8582
  2009
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@8582
  2010
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@8582
  2011
    } else {
slouken@8582
  2012
        return 0;
slouken@8582
  2013
    }
slouken@8582
  2014
}
slouken@8582
  2015
slouken@8582
  2016
int
slouken@8582
  2017
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@8582
  2018
                                            Uint16 * green,
slouken@8582
  2019
                                            Uint16 * blue)
slouken@8582
  2020
{
slouken@8582
  2021
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  2022
slouken@8582
  2023
    if (!window->gamma) {
slouken@8582
  2024
        int i;
slouken@8582
  2025
slouken@8582
  2026
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@8582
  2027
        if (!window->gamma) {
slouken@8582
  2028
            return SDL_OutOfMemory();
slouken@8582
  2029
        }
slouken@8582
  2030
        window->saved_gamma = window->gamma + 3*256;
slouken@8582
  2031
slouken@8582
  2032
        if (_this->GetWindowGammaRamp) {
slouken@8582
  2033
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@8582
  2034
                return -1;
slouken@8582
  2035
            }
slouken@8582
  2036
        } else {
slouken@8582
  2037
            /* Create an identity gamma ramp */
slouken@8582
  2038
            for (i = 0; i < 256; ++i) {
slouken@8582
  2039
                Uint16 value = (Uint16)((i << 8) | i);
slouken@8582
  2040
slouken@8582
  2041
                window->gamma[0*256+i] = value;
slouken@8582
  2042
                window->gamma[1*256+i] = value;
slouken@8582
  2043
                window->gamma[2*256+i] = value;
slouken@8582
  2044
            }
slouken@8582
  2045
        }
slouken@8582
  2046
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@8582
  2047
    }
slouken@8582
  2048
slouken@8582
  2049
    if (red) {
slouken@8582
  2050
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@8582
  2051
    }
slouken@8582
  2052
    if (green) {
slouken@8582
  2053
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@8582
  2054
    }
slouken@8582
  2055
    if (blue) {
slouken@8582
  2056
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@8582
  2057
    }
slouken@8582
  2058
    return 0;
slouken@8582
  2059
}
slouken@8582
  2060
slouken@8582
  2061
void
slouken@8582
  2062
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@8582
  2063
{
slouken@8582
  2064
    if (_this->SetWindowGrab) {
slouken@8582
  2065
        SDL_bool grabbed;
slouken@8072
  2066
        if ((SDL_GetMouse()->relative_mode || (window->flags & SDL_WINDOW_INPUT_GRABBED)) &&
slouken@8072
  2067
             (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@8582
  2068
            grabbed = SDL_TRUE;
slouken@8582
  2069
        } else {
slouken@8582
  2070
            grabbed = SDL_FALSE;
slouken@8582
  2071
        }
slouken@8582
  2072
        _this->SetWindowGrab(_this, window, grabbed);
slouken@8582
  2073
    }
slouken@8582
  2074
}
slouken@8582
  2075
slouken@8582
  2076
void
slouken@8582
  2077
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@8582
  2078
{
slouken@8582
  2079
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  2080
slouken@8582
  2081
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@8582
  2082
        return;
slouken@8582
  2083
    }
slouken@8582
  2084
    if (grabbed) {
slouken@8582
  2085
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@8582
  2086
    } else {
slouken@8582
  2087
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@8582
  2088
    }
slouken@8582
  2089
    SDL_UpdateWindowGrab(window);
slouken@8582
  2090
}
slouken@8582
  2091
slouken@8582
  2092
SDL_bool
slouken@8582
  2093
SDL_GetWindowGrab(SDL_Window * window)
slouken@8582
  2094
{
slouken@8582
  2095
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@8582
  2096
slouken@8582
  2097
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@8582
  2098
}
slouken@8582
  2099
slouken@8582
  2100
void
slouken@8582
  2101
SDL_OnWindowShown(SDL_Window * window)
slouken@8582
  2102
{
slouken@8582
  2103
    SDL_OnWindowRestored(window);
slouken@8582
  2104
}
slouken@8582
  2105
slouken@8582
  2106
void
slouken@8582
  2107
SDL_OnWindowHidden(SDL_Window * window)
slouken@8582
  2108
{
slouken@8582
  2109
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  2110
}
slouken@8582
  2111
slouken@8582
  2112
void
slouken@8582
  2113
SDL_OnWindowResized(SDL_Window * window)
slouken@8582
  2114
{
slouken@8582
  2115
    window->surface_valid = SDL_FALSE;
slouken@8582
  2116
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@8582
  2117
}
slouken@8582
  2118
slouken@8582
  2119
void
slouken@8582
  2120
SDL_OnWindowMinimized(SDL_Window * window)
slouken@8582
  2121
{
slouken@8582
  2122
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  2123
}
slouken@8582
  2124
slouken@8582
  2125
void
slouken@8582
  2126
SDL_OnWindowRestored(SDL_Window * window)
slouken@8582
  2127
{
slouken@8582
  2128
    SDL_RaiseWindow(window);
slouken@8582
  2129
slouken@8582
  2130
    if (FULLSCREEN_VISIBLE(window)) {
slouken@8582
  2131
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@8582
  2132
    }
slouken@8582
  2133
}
slouken@8582
  2134
slouken@8582
  2135
void
slouken@8582
  2136
SDL_OnWindowEnter(SDL_Window * window)
slouken@8582
  2137
{
slouken@8582
  2138
    if (_this->OnWindowEnter) {
slouken@8582
  2139
        _this->OnWindowEnter(_this, window);
slouken@8582
  2140
    }
slouken@8582
  2141
}
slouken@8582
  2142
slouken@8582
  2143
void
slouken@8582
  2144
SDL_OnWindowLeave(SDL_Window * window)
slouken@8582
  2145
{
slouken@8582
  2146
}
slouken@8582
  2147
slouken@8582
  2148
void
slouken@8582
  2149
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@8582
  2150
{
slouken@8582
  2151
    SDL_Mouse *mouse = SDL_GetMouse();
slouken@8582
  2152
slouken@8582
  2153
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@8582
  2154
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@8582
  2155
    }
slouken@8582
  2156
slouken@8582
  2157
    if (mouse && mouse->relative_mode) {
slouken@8582
  2158
        SDL_SetMouseFocus(window);
slouken@8582
  2159
        SDL_WarpMouseInWindow(window, window->w/2, window->h/2);
slouken@8582
  2160
    }
slouken@8582
  2161
slouken@8582
  2162
    SDL_UpdateWindowGrab(window);
slouken@8582
  2163
}
slouken@8582
  2164
slouken@8582
  2165
static SDL_bool
slouken@8582
  2166
ShouldMinimizeOnFocusLoss(SDL_Window * window)
slouken@8582
  2167
{
slouken@8582
  2168
    const char *hint;
slouken@8582
  2169
jorgen@8112
  2170
    if (!(window->flags & SDL_WINDOW_FULLSCREEN) || window->is_destroying) {
slouken@8582
  2171
        return SDL_FALSE;
slouken@8582
  2172
    }
slouken@8582
  2173
slouken@8582
  2174
#ifdef __MACOSX__
slouken@8582
  2175
    if (Cocoa_IsWindowInFullscreenSpace(window)) {
slouken@8582
  2176
        return SDL_FALSE;
slouken@8582
  2177
    }
slouken@8582
  2178
#endif
slouken@8582
  2179
slouken@8582
  2180
    hint = SDL_GetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS);
slouken@8582
  2181
    if (hint) {
slouken@8582
  2182
        if (*hint == '0') {
slouken@8582
  2183
            return SDL_FALSE;
slouken@8582
  2184
        } else {
slouken@8582
  2185
            return SDL_TRUE;
slouken@8582
  2186
        }
slouken@8582
  2187
    }
slouken@8582
  2188
slouken@8582
  2189
    return SDL_TRUE;
slouken@8582
  2190
}
slouken@8582
  2191
slouken@8582
  2192
void
slouken@8582
  2193
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@8582
  2194
{
slouken@8582
  2195
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@8582
  2196
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@8582
  2197
    }
slouken@8582
  2198
slouken@8582
  2199
    SDL_UpdateWindowGrab(window);
slouken@8582
  2200
slouken@8582
  2201
    if (ShouldMinimizeOnFocusLoss(window)) {
slouken@8582
  2202
        SDL_MinimizeWindow(window);
slouken@8582
  2203
    }
slouken@8582
  2204
}
slouken@8582
  2205
slouken@8582
  2206
SDL_Window *
slouken@8582
  2207
SDL_GetFocusWindow(void)
slouken@8582
  2208
{
slouken@8582
  2209
    SDL_Window *window;
slouken@8582
  2210
slouken@8582
  2211
    if (!_this) {
slouken@8582
  2212
        return NULL;
slouken@8582
  2213
    }
slouken@8582
  2214
    for (window = _this->windows; window; window = window->next) {
slouken@8582
  2215
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@8582
  2216
            return window;
slouken@8582
  2217
        }
slouken@8582
  2218
    }
slouken@8582
  2219
    return NULL;
slouken@8582
  2220
}
slouken@8582
  2221
slouken@8582
  2222
void
slouken@8582
  2223
SDL_DestroyWindow(SDL_Window * window)
slouken@8582
  2224
{
slouken@8582
  2225
    SDL_VideoDisplay *display;
slouken@8582
  2226
slouken@8582
  2227
    CHECK_WINDOW_MAGIC(window, );
slouken@8582
  2228
jorgen@8112
  2229
    window->is_destroying = SDL_TRUE;
jorgen@8112
  2230
slouken@8582
  2231
    /* Restore video mode, etc. */
slouken@8582
  2232
    SDL_HideWindow(window);
slouken@8582
  2233
slouken@8582
  2234
    /* Make sure this window no longer has focus */
slouken@8582
  2235
    if (SDL_GetKeyboardFocus() == window) {
slouken@8582
  2236
        SDL_SetKeyboardFocus(NULL);
slouken@8582
  2237
    }
slouken@8582
  2238
    if (SDL_GetMouseFocus() == window) {
slouken@8582
  2239
        SDL_SetMouseFocus(NULL);
slouken@8582
  2240
    }
slouken@8582
  2241
slouken@8582
  2242
    /* make no context current if this is the current context window. */
slouken@8582
  2243
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@8582
  2244
        if (_this->current_glwin == window) {
slouken@8582
  2245
            SDL_GL_MakeCurrent(window, NULL);
slouken@8582
  2246
        }
slouken@8582
  2247
    }
slouken@8582
  2248
slouken@8582
  2249
    if (window->surface) {
slouken@8582
  2250
        window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  2251
        SDL_FreeSurface(window->surface);
slouken@8582
  2252
    }
slouken@8582
  2253
    if (_this->DestroyWindowFramebuffer) {
slouken@8582
  2254
        _this->DestroyWindowFramebuffer(_this, window);
slouken@8582
  2255
    }
slouken@8582
  2256
    if (_this->DestroyWindow) {
slouken@8582
  2257
        _this->DestroyWindow(_this, window);
slouken@8582
  2258
    }
slouken@8582
  2259
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@8582
  2260
        SDL_GL_UnloadLibrary();
slouken@8582
  2261
    }
slouken@8582
  2262
slouken@8582
  2263
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  2264
    if (display->fullscreen_window == window) {
slouken@8582
  2265
        display->fullscreen_window = NULL;
slouken@8582
  2266
    }
slouken@8582
  2267
slouken@8582
  2268
    /* Now invalidate magic */
slouken@8582
  2269
    window->magic = NULL;
slouken@8582
  2270
slouken@8582
  2271
    /* Free memory associated with the window */
slouken@8582
  2272
    SDL_free(window->title);
slouken@8582
  2273
    SDL_FreeSurface(window->icon);
slouken@8582
  2274
    SDL_free(window->gamma);
slouken@8582
  2275
    while (window->data) {
slouken@8582
  2276
        SDL_WindowUserData *data = window->data;
slouken@8582
  2277
slouken@8582
  2278
        window->data = data->next;
slouken@8582
  2279
        SDL_free(data->name);
slouken@8582
  2280
        SDL_free(data);
slouken@8582
  2281
    }
slouken@8582
  2282
slouken@8582
  2283
    /* Unlink the window from the list */
slouken@8582
  2284
    if (window->next) {
slouken@8582
  2285
        window->next->prev = window->prev;
slouken@8582
  2286
    }
slouken@8582
  2287
    if (window->prev) {
slouken@8582
  2288
        window->prev->next = window->next;
slouken@8582
  2289
    } else {
slouken@8582
  2290
        _this->windows = window->next;
slouken@8582
  2291
    }
slouken@8582
  2292
slouken@8582
  2293
    SDL_free(window);
slouken@8582
  2294
}
slouken@8582
  2295
slouken@8582
  2296
SDL_bool
slouken@8582
  2297
SDL_IsScreenSaverEnabled()
slouken@8582
  2298
{
slouken@8582
  2299
    if (!_this) {
slouken@8582
  2300
        return SDL_TRUE;
slouken@8582
  2301
    }
slouken@8582
  2302
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@8582
  2303
}
slouken@8582
  2304
slouken@8582
  2305
void
slouken@8582
  2306
SDL_EnableScreenSaver()
slouken@8582
  2307
{
slouken@8582
  2308
    if (!_this) {
slouken@8582
  2309
        return;
slouken@8582
  2310
    }
slouken@8582
  2311
    if (!_this->suspend_screensaver) {
slouken@8582
  2312
        return;
slouken@8582
  2313
    }
slouken@8582
  2314
    _this->suspend_screensaver = SDL_FALSE;
slouken@8582
  2315
    if (_this->SuspendScreenSaver) {
slouken@8582
  2316
        _this->SuspendScreenSaver(_this);
slouken@8582
  2317
    }
slouken@8582
  2318
}
slouken@8582
  2319
slouken@8582
  2320
void
slouken@8582
  2321
SDL_DisableScreenSaver()
slouken@8582
  2322
{
slouken@8582
  2323
    if (!_this) {
slouken@8582
  2324
        return;
slouken@8582
  2325
    }
slouken@8582
  2326
    if (_this->suspend_screensaver) {
slouken@8582
  2327
        return;
slouken@8582
  2328
    }
slouken@8582
  2329
    _this->suspend_screensaver = SDL_TRUE;
slouken@8582
  2330
    if (_this->SuspendScreenSaver) {
slouken@8582
  2331
        _this->SuspendScreenSaver(_this);
slouken@8582
  2332
    }
slouken@8582
  2333
}
slouken@8582
  2334
slouken@8582
  2335
void
slouken@8582
  2336
SDL_VideoQuit(void)
slouken@8582
  2337
{
slouken@8582
  2338
    int i, j;
slouken@8582
  2339
slouken@8582
  2340
    if (!_this) {
slouken@8582
  2341
        return;
slouken@8582
  2342
    }
slouken@8582
  2343
slouken@8582
  2344
    /* Halt event processing before doing anything else */
slouken@8582
  2345
    SDL_TouchQuit();
slouken@8582
  2346
    SDL_MouseQuit();
slouken@8582
  2347
    SDL_KeyboardQuit();
slouken@8582
  2348
    SDL_QuitSubSystem(SDL_INIT_EVENTS);
slouken@8582
  2349
slouken@8582
  2350
    SDL_EnableScreenSaver();
slouken@8582
  2351
slouken@8582
  2352
    /* Clean up the system video */
slouken@8582
  2353
    while (_this->windows) {
slouken@8582
  2354
        SDL_DestroyWindow(_this->windows);
slouken@8582
  2355
    }
slouken@8582
  2356
    _this->VideoQuit(_this);
slouken@8582
  2357
slouken@8582
  2358
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
  2359
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@8582
  2360
        for (j = display->num_display_modes; j--;) {
slouken@8582
  2361
            SDL_free(display->display_modes[j].driverdata);
slouken@8582
  2362
            display->display_modes[j].driverdata = NULL;
slouken@8582
  2363
        }
slouken@8582
  2364
        SDL_free(display->display_modes);
slouken@8582
  2365
        display->display_modes = NULL;
slouken@8582
  2366
        SDL_free(display->desktop_mode.driverdata);
slouken@8582
  2367
        display->desktop_mode.driverdata = NULL;
slouken@8582
  2368
        SDL_free(display->driverdata);
slouken@8582
  2369
        display->driverdata = NULL;
slouken@8582
  2370
    }
slouken@8582
  2371
    if (_this->displays) {
slouken@8582
  2372
        for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
  2373
            SDL_free(_this->displays[i].name);
slouken@8582
  2374
        }
slouken@8582
  2375
        SDL_free(_this->displays);
slouken@8582
  2376
        _this->displays = NULL;
slouken@8582
  2377
        _this->num_displays = 0;
slouken@8582
  2378
    }
slouken@8582
  2379
    SDL_free(_this->clipboard_text);
slouken@8582
  2380
    _this->clipboard_text = NULL;
slouken@8582
  2381
    _this->free(_this);
slouken@8582
  2382
    _this = NULL;
slouken@8582
  2383
}
slouken@8582
  2384
slouken@8582
  2385
int
slouken@8582
  2386
SDL_GL_LoadLibrary(const char *path)
slouken@8582
  2387
{
slouken@8582
  2388
    int retval;
slouken@8582
  2389
slouken@8582
  2390
    if (!_this) {
slouken@8582
  2391
        return SDL_UninitializedVideo();
slouken@8582
  2392
    }
slouken@8582
  2393
    if (_this->gl_config.driver_loaded) {
slouken@8582
  2394
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@8582
  2395
            return SDL_SetError("OpenGL library already loaded");
slouken@8582
  2396
        }
slouken@8582
  2397
        retval = 0;
slouken@8582
  2398
    } else {
slouken@8582
  2399
        if (!_this->GL_LoadLibrary) {
slouken@8582
  2400
            return SDL_SetError("No dynamic GL support in video driver");
slouken@8582
  2401
        }
slouken@8582
  2402
        retval = _this->GL_LoadLibrary(_this, path);
slouken@8582
  2403
    }
slouken@8582
  2404
    if (retval == 0) {
slouken@8582
  2405
        ++_this->gl_config.driver_loaded;
slouken@8582
  2406
    } else {
slouken@8582
  2407
        if (_this->GL_UnloadLibrary) {
slouken@8582
  2408
            _this->GL_UnloadLibrary(_this);
slouken@8582
  2409
        }
slouken@8582
  2410
    }
slouken@8582
  2411
    return (retval);
slouken@8582
  2412
}
slouken@8582
  2413
slouken@8582
  2414
void *
slouken@8582
  2415
SDL_GL_GetProcAddress(const char *proc)
slouken@8582
  2416
{
slouken@8582
  2417
    void *func;
slouken@8582
  2418
slouken@8582
  2419
    if (!_this) {
slouken@8582
  2420
        SDL_UninitializedVideo();
slouken@8582
  2421
        return NULL;
slouken@8582
  2422
    }
slouken@8582
  2423
    func = NULL;
slouken@8582
  2424
    if (_this->GL_GetProcAddress) {
slouken@8582
  2425
        if (_this->gl_config.driver_loaded) {
slouken@8582
  2426
            func = _this->GL_GetProcAddress(_this, proc);
slouken@8582
  2427
        } else {
slouken@8582
  2428
            SDL_SetError("No GL driver has been loaded");
slouken@8582
  2429
        }
slouken@8582
  2430
    } else {
slouken@8582
  2431
        SDL_SetError("No dynamic GL support in video driver");
slouken@8582
  2432
    }
slouken@8582
  2433
    return func;
slouken@8582
  2434
}
slouken@8582
  2435
slouken@8582
  2436
void
slouken@8582
  2437
SDL_GL_UnloadLibrary(void)
slouken@8582
  2438
{
slouken@8582
  2439
    if (!_this) {
slouken@8582
  2440
        SDL_UninitializedVideo();
slouken@8582
  2441
        return;
slouken@8582
  2442
    }
slouken@8582
  2443
    if (_this->gl_config.driver_loaded > 0) {
slouken@8582
  2444
        if (--_this->gl_config.driver_loaded > 0) {
slouken@8582
  2445
            return;
slouken@8582
  2446
        }
slouken@8582
  2447
        if (_this->GL_UnloadLibrary) {
slouken@8582
  2448
            _this->GL_UnloadLibrary(_this);
slouken@8582
  2449
        }
slouken@8582
  2450
    }
slouken@8582
  2451
}
slouken@8582
  2452
slouken@8582
  2453
static SDL_INLINE SDL_bool
slouken@8582
  2454
isAtLeastGL3(const char *verstr)
slouken@8582
  2455
{
slouken@8582
  2456
    return ( verstr && (SDL_atoi(verstr) >= 3) );
slouken@8582
  2457
}
slouken@8582
  2458
slouken@8582
  2459
SDL_bool
slouken@8582
  2460
SDL_GL_ExtensionSupported(const char *extension)
slouken@8582
  2461
{
slouken@8582
  2462
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2463
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@8582
  2464
    const char *extensions;
slouken@8582
  2465
    const char *start;
slouken@8582
  2466
    const char *where, *terminator;
slouken@8582
  2467
slouken@8582
  2468
    /* Extension names should not have spaces. */
slouken@8582
  2469
    where = SDL_strchr(extension, ' ');
slouken@8582
  2470
    if (where || *extension == '\0') {
slouken@8582
  2471
        return SDL_FALSE;
slouken@8582
  2472
    }
slouken@8582
  2473
    /* See if there's an environment variable override */
slouken@8582
  2474
    start = SDL_getenv(extension);
slouken@8582
  2475
    if (start && *start == '0') {
slouken@8582
  2476
        return SDL_FALSE;
slouken@8582
  2477
    }
slouken@8582
  2478
slouken@8582
  2479
    /* Lookup the available extensions */
slouken@8582
  2480
slouken@8582
  2481
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@8582
  2482
    if (!glGetStringFunc) {
slouken@8582
  2483
        return SDL_FALSE;
slouken@8582
  2484
    }
slouken@8582
  2485
slouken@8582
  2486
    if (isAtLeastGL3((const char *) glGetStringFunc(GL_VERSION))) {
slouken@8582
  2487
        const GLubyte *(APIENTRY * glGetStringiFunc) (GLenum, GLuint);
slouken@8582
  2488
        void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@8582
  2489
        GLint num_exts = 0;
slouken@8582
  2490
        GLint i;
slouken@8582
  2491
slouken@8582
  2492
        glGetStringiFunc = SDL_GL_GetProcAddress("glGetStringi");
slouken@8582
  2493
        glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@8582
  2494
        if ((!glGetStringiFunc) || (!glGetIntegervFunc)) {
slouken@8582
  2495
            return SDL_FALSE;
slouken@8582
  2496
        }
slouken@8582
  2497
slouken@8582
  2498
        #ifndef GL_NUM_EXTENSIONS
slouken@8582
  2499
        #define GL_NUM_EXTENSIONS 0x821D
slouken@8582
  2500
        #endif
slouken@8582
  2501
        glGetIntegervFunc(GL_NUM_EXTENSIONS, &num_exts);
slouken@8582
  2502
        for (i = 0; i < num_exts; i++) {
slouken@8582
  2503
            const char *thisext = (const char *) glGetStringiFunc(GL_EXTENSIONS, i);
slouken@8582
  2504
            if (SDL_strcmp(thisext, extension) == 0) {
slouken@8582
  2505
                return SDL_TRUE;
slouken@8582
  2506
            }
slouken@8582
  2507
        }
slouken@8582
  2508
slouken@8582
  2509
        return SDL_FALSE;
slouken@8582
  2510
    }
slouken@8582
  2511
slouken@8582
  2512
    /* Try the old way with glGetString(GL_EXTENSIONS) ... */
slouken@8582
  2513
slouken@8582
  2514
    extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@8582
  2515
    if (!extensions) {
slouken@8582
  2516
        return SDL_FALSE;
slouken@8582
  2517
    }
slouken@8582
  2518
    /*
slouken@8582
  2519
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@8582
  2520
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@8582
  2521
     */
slouken@8582
  2522
slouken@8582
  2523
    start = extensions;
slouken@8582
  2524
slouken@8582
  2525
    for (;;) {
slouken@8582
  2526
        where = SDL_strstr(start, extension);
slouken@8582
  2527
        if (!where)
slouken@8582
  2528
            break;
slouken@8582
  2529
slouken@8582
  2530
        terminator = where + SDL_strlen(extension);
slouken@8582
  2531
        if (where == start || *(where - 1) == ' ')
slouken@8582
  2532
            if (*terminator == ' ' || *terminator == '\0')
slouken@8582
  2533
                return SDL_TRUE;
slouken@8582
  2534
slouken@8582
  2535
        start = terminator;
slouken@8582
  2536
    }
slouken@8582
  2537
    return SDL_FALSE;
slouken@8582
  2538
#else
slouken@8582
  2539
    return SDL_FALSE;
slouken@8582
  2540
#endif
slouken@8582
  2541
}
slouken@8582
  2542
jorgen@8145
  2543
void
jorgen@8145
  2544
SDL_GL_ResetAttributes()
jorgen@8145
  2545
{
jorgen@8145
  2546
    if (!_this) {
jorgen@8145
  2547
        return;
jorgen@8145
  2548
    }
jorgen@8145
  2549
jorgen@8145
  2550
    _this->gl_config.red_size = 3;
jorgen@8145
  2551
    _this->gl_config.green_size = 3;
jorgen@8145
  2552
    _this->gl_config.blue_size = 2;
jorgen@8145
  2553
    _this->gl_config.alpha_size = 0;
jorgen@8145
  2554
    _this->gl_config.buffer_size = 0;
jorgen@8145
  2555
    _this->gl_config.depth_size = 16;
jorgen@8145
  2556
    _this->gl_config.stencil_size = 0;
jorgen@8145
  2557
    _this->gl_config.double_buffer = 1;
jorgen@8145
  2558
    _this->gl_config.accum_red_size = 0;
jorgen@8145
  2559
    _this->gl_config.accum_green_size = 0;
jorgen@8145
  2560
    _this->gl_config.accum_blue_size = 0;
jorgen@8145
  2561
    _this->gl_config.accum_alpha_size = 0;
jorgen@8145
  2562
    _this->gl_config.stereo = 0;
jorgen@8145
  2563
    _this->gl_config.multisamplebuffers = 0;
jorgen@8145
  2564
    _this->gl_config.multisamplesamples = 0;
jorgen@8145
  2565
    _this->gl_config.retained_backing = 1;
jorgen@8145
  2566
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@8601
  2567
    _this->gl_config.profile_mask = 0;
icculus@8586
  2568
#if SDL_VIDEO_OPENGL
slouken@8601
  2569
    _this->gl_config.major_version = 2;
slouken@8601
  2570
    _this->gl_config.minor_version = 1;
jorgen@8145
  2571
#elif SDL_VIDEO_OPENGL_ES2
jorgen@8145
  2572
    _this->gl_config.major_version = 2;
jorgen@8145
  2573
    _this->gl_config.minor_version = 0;
jorgen@8145
  2574
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
jorgen@8145
  2575
#elif SDL_VIDEO_OPENGL_ES
jorgen@8145
  2576
    _this->gl_config.major_version = 1;
jorgen@8145
  2577
    _this->gl_config.minor_version = 1;
jorgen@8145
  2578
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
jorgen@8145
  2579
#endif
jorgen@8145
  2580
    _this->gl_config.flags = 0;
jorgen@8145
  2581
    _this->gl_config.framebuffer_srgb_capable = 0;
jorgen@8145
  2582
jorgen@8145
  2583
    _this->gl_config.share_with_current_context = 0;
jorgen@8145
  2584
}
jorgen@8145
  2585
slouken@8582
  2586
int
slouken@8582
  2587
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@8582
  2588
{
slouken@8582
  2589
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2590
    int retval;
slouken@8582
  2591
slouken@8582
  2592
    if (!_this) {
slouken@8582
  2593
        return SDL_UninitializedVideo();
slouken@8582
  2594
    }
slouken@8582
  2595
    retval = 0;
slouken@8582
  2596
    switch (attr) {
slouken@8582
  2597
    case SDL_GL_RED_SIZE:
slouken@8582
  2598
        _this->gl_config.red_size = value;
slouken@8582
  2599
        break;
slouken@8582
  2600
    case SDL_GL_GREEN_SIZE:
slouken@8582
  2601
        _this->gl_config.green_size = value;
slouken@8582
  2602
        break;
slouken@8582
  2603
    case SDL_GL_BLUE_SIZE:
slouken@8582
  2604
        _this->gl_config.blue_size = value;
slouken@8582
  2605
        break;
slouken@8582
  2606
    case SDL_GL_ALPHA_SIZE:
slouken@8582
  2607
        _this->gl_config.alpha_size = value;
slouken@8582
  2608
        break;
slouken@8582
  2609
    case SDL_GL_DOUBLEBUFFER:
slouken@8582
  2610
        _this->gl_config.double_buffer = value;
slouken@8582
  2611
        break;
slouken@8582
  2612
    case SDL_GL_BUFFER_SIZE:
slouken@8582
  2613
        _this->gl_config.buffer_size = value;
slouken@8582
  2614
        break;
slouken@8582
  2615
    case SDL_GL_DEPTH_SIZE:
slouken@8582
  2616
        _this->gl_config.depth_size = value;
slouken@8582
  2617
        break;
slouken@8582
  2618
    case SDL_GL_STENCIL_SIZE:
slouken@8582
  2619
        _this->gl_config.stencil_size = value;
slouken@8582
  2620
        break;
slouken@8582
  2621
    case SDL_GL_ACCUM_RED_SIZE:
slouken@8582
  2622
        _this->gl_config.accum_red_size = value;
slouken@8582
  2623
        break;
slouken@8582
  2624
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@8582
  2625
        _this->gl_config.accum_green_size = value;
slouken@8582
  2626
        break;
slouken@8582
  2627
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@8582
  2628
        _this->gl_config.accum_blue_size = value;
slouken@8582
  2629
        break;
slouken@8582
  2630
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@8582
  2631
        _this->gl_config.accum_alpha_size = value;
slouken@8582
  2632
        break;
slouken@8582
  2633
    case SDL_GL_STEREO:
slouken@8582
  2634
        _this->gl_config.stereo = value;
slouken@8582
  2635
        break;
slouken@8582
  2636
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@8582
  2637
        _this->gl_config.multisamplebuffers = value;
slouken@8582
  2638
        break;
slouken@8582
  2639
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@8582
  2640
        _this->gl_config.multisamplesamples = value;
slouken@8582
  2641
        break;
slouken@8582
  2642
    case SDL_GL_ACCELERATED_VISUAL:
slouken@8582
  2643
        _this->gl_config.accelerated = value;
slouken@8582
  2644
        break;
slouken@8582
  2645
    case SDL_GL_RETAINED_BACKING:
slouken@8582
  2646
        _this->gl_config.retained_backing = value;
slouken@8582
  2647
        break;
slouken@8582
  2648
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@8582
  2649
        _this->gl_config.major_version = value;
slouken@8582
  2650
        break;
slouken@8582
  2651
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@8582
  2652
        _this->gl_config.minor_version = value;
slouken@8582
  2653
        break;
slouken@8582
  2654
    case SDL_GL_CONTEXT_EGL:
slouken@8582
  2655
        /* FIXME: SDL_GL_CONTEXT_EGL to be deprecated in SDL 2.1 */
slouken@8582
  2656
        if (value != 0) {
slouken@8582
  2657
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
slouken@8582
  2658
        } else {
slouken@8582
  2659
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, 0);
slouken@8582
  2660
        };
slouken@8582
  2661
        break;
slouken@8582
  2662
    case SDL_GL_CONTEXT_FLAGS:
slouken@8582
  2663
        if( value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@8582
  2664
              SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@8582
  2665
              SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@8582
  2666
              SDL_GL_CONTEXT_RESET_ISOLATION_FLAG) ) {
slouken@8582
  2667
        retval = SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@8582
  2668
        break;
slouken@8582
  2669
    }
slouken@8582
  2670
        _this->gl_config.flags = value;
slouken@8582
  2671
        break;
slouken@8582
  2672
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@8582
  2673
        if( value != 0 &&
slouken@8582
  2674
        value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@8582
  2675
        value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@8582
  2676
        value != SDL_GL_CONTEXT_PROFILE_ES ) {
slouken@8582
  2677
        retval = SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@8582
  2678
        break;
slouken@8582
  2679
    }
slouken@8582
  2680
        _this->gl_config.profile_mask = value;
slouken@8582
  2681
        break;
slouken@8582
  2682
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@8582
  2683
        _this->gl_config.share_with_current_context = value;
slouken@8582
  2684
        break;
slouken@8582
  2685
    case SDL_GL_FRAMEBUFFER_SRGB_CAPABLE:
slouken@8582
  2686
        _this->gl_config.framebuffer_srgb_capable = value;
slouken@8582
  2687
        break;
slouken@8582
  2688
    default:
slouken@8582
  2689
        retval = SDL_SetError("Unknown OpenGL attribute");
slouken@8582
  2690
        break;
slouken@8582
  2691
    }
slouken@8582
  2692
    return retval;
slouken@8582
  2693
#else
slouken@8582
  2694
    return SDL_Unsupported();
slouken@8582
  2695
#endif /* SDL_VIDEO_OPENGL */
slouken@8582
  2696
}
slouken@8582
  2697
slouken@8582
  2698
int
slouken@8582
  2699
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@8582
  2700
{
slouken@8582
  2701
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2702
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@8582
  2703
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@8582
  2704
    GLenum attrib = 0;
slouken@8582
  2705
    GLenum error = 0;
slouken@8582
  2706
slouken@8582
  2707
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@8582
  2708
    if (!glGetIntegervFunc) {
slouken@8582
  2709
        return -1;
slouken@8582
  2710
    }
slouken@8582
  2711
slouken@8582
  2712
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@8582
  2713
    if (!glGetErrorFunc) {
slouken@8582
  2714
        return -1;
slouken@8582
  2715
    }
slouken@8582
  2716
slouken@8582
  2717
    /* Clear value in any case */
slouken@8582
  2718
    *value = 0;
slouken@8582
  2719
slouken@8582
  2720
    switch (attr) {
slouken@8582
  2721
    case SDL_GL_RED_SIZE:
slouken@8582
  2722
        attrib = GL_RED_BITS;
slouken@8582
  2723
        break;
slouken@8582
  2724
    case SDL_GL_BLUE_SIZE:
slouken@8582
  2725
        attrib = GL_BLUE_BITS;
slouken@8582
  2726
        break;
slouken@8582
  2727
    case SDL_GL_GREEN_SIZE:
slouken@8582
  2728
        attrib = GL_GREEN_BITS;
slouken@8582
  2729
        break;
slouken@8582
  2730
    case SDL_GL_ALPHA_SIZE:
slouken@8582
  2731
        attrib = GL_ALPHA_BITS;
slouken@8582
  2732
        break;
slouken@8582
  2733
    case SDL_GL_DOUBLEBUFFER:
slouken@8582
  2734
#if SDL_VIDEO_OPENGL
slouken@8582
  2735
        attrib = GL_DOUBLEBUFFER;
slouken@8582
  2736
        break;
slouken@8582
  2737
#else
slouken@8582
  2738
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@8582
  2739
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@8582
  2740
        /* SDL driver must set proper value after initialization              */
slouken@8582
  2741
        *value = _this->gl_config.double_buffer;
slouken@8582
  2742
        return 0;
slouken@8582
  2743
#endif
slouken@8582
  2744
    case SDL_GL_DEPTH_SIZE:
slouken@8582
  2745
        attrib = GL_DEPTH_BITS;
slouken@8582
  2746
        break;
slouken@8582
  2747
    case SDL_GL_STENCIL_SIZE:
slouken@8582
  2748
        attrib = GL_STENCIL_BITS;
slouken@8582
  2749
        break;
slouken@8582
  2750
#if SDL_VIDEO_OPENGL
slouken@8582
  2751
    case SDL_GL_ACCUM_RED_SIZE:
slouken@8582
  2752
        attrib = GL_ACCUM_RED_BITS;
slouken@8582
  2753
        break;
slouken@8582
  2754
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@8582
  2755
        attrib = GL_ACCUM_GREEN_BITS;
slouken@8582
  2756
        break;
slouken@8582
  2757
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@8582
  2758
        attrib = GL_ACCUM_BLUE_BITS;
slouken@8582
  2759
        break;
slouken@8582
  2760
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@8582
  2761
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@8582
  2762
        break;
slouken@8582
  2763
    case SDL_GL_STEREO:
slouken@8582
  2764
        attrib = GL_STEREO;
slouken@8582
  2765
        break;
slouken@8582
  2766
#else
slouken@8582
  2767
    case SDL_GL_ACCUM_RED_SIZE:
slouken@8582
  2768
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@8582
  2769
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@8582
  2770
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@8582
  2771
    case SDL_GL_STEREO:
slouken@8582
  2772
        /* none of these are supported in OpenGL ES */
slouken@8582
  2773
        *value = 0;
slouken@8582
  2774
        return 0;
slouken@8582
  2775
#endif
slouken@8582
  2776
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@8582
  2777
#if SDL_VIDEO_OPENGL
slouken@8582
  2778
        attrib = GL_SAMPLE_BUFFERS_ARB;
slouken@8582
  2779
#else
slouken@8582
  2780
        attrib = GL_SAMPLE_BUFFERS;
slouken@8582
  2781
#endif
slouken@8582
  2782
        break;
slouken@8582
  2783
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@8582
  2784
#if SDL_VIDEO_OPENGL