src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 20 Feb 2012 23:37:57 -0500
changeset 6296 b42657486c0d
parent 6266 a4be1e781020
child 6370 93187f7f7d5d
permissions -rwxr-xr-x
Add OpenGL 3.X context creation support

Matthias Bentrup 2011-10-30 03:58:24 PDT

I've updated the context creation patch to include the bugfixes by Martin
Schreiber and also included a profile bit to request a ES2 compatible profile.

The wgl context creation may use 2 call to wglChoosePixelFormat if no
acceleration attribute is selected, this should work around a bug with buggy
AMD drivers (see #1254).
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2012 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_config.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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#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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#if SDL_VIDEO_OPENGL_ES2
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 */
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#include "SDL_syswm.h"
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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_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_BWINDOW
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    &BWINDOW_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_NDS
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    &NDS_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_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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    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 INVALIDATE_GLCONTEXT() \
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    _this->current_glwin = NULL; \
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    _this->current_glctx = NULL;
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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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            SDL_SetError("No hardware accelerated renderers available");
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            return -1;
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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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            SDL_OutOfMemory();
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            return -1;
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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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    if (data->pixels) {
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        SDL_free(data->pixels);
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        data->pixels = NULL;
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    }
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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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   301
    if (!data->pixels) {
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        SDL_OutOfMemory();
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        return -1;
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   304
    }
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   305
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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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   312
    return 0;
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   313
}
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static int
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SDL_UpdateWindowTexture(_THIS, SDL_Window * window, 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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   321
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   322
    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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   323
    if (!data || !data->texture) {
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        SDL_SetError("No window texture data");
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   325
        return -1;
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   326
    }
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   327
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   328
    /* 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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   331
                        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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   334
            return -1;
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   335
        }
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   336
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   337
        if (SDL_RenderCopy(data->renderer, data->texture, NULL, NULL) < 0) {
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   338
            return -1;
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   339
        }
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   340
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   341
        SDL_RenderPresent(data->renderer);
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   342
    }
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   343
    return 0;
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   344
}
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   345
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   346
static void
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   347
SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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   348
{
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   349
    SDL_WindowTextureData *data;
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   350
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   351
    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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   352
    if (!data) {
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   353
        return;
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   354
    }
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   355
    if (data->texture) {
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   356
        SDL_DestroyTexture(data->texture);
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   357
    }
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   358
    if (data->renderer) {
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   359
        SDL_DestroyRenderer(data->renderer);
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   360
    }
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   361
    if (data->pixels) {
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   362
        SDL_free(data->pixels);
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   363
    }
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   364
    SDL_free(data);
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   365
}
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   366
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   367
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   368
static int
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cmpmodes(const void *A, const void *B)
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   370
{
slouken@2753
   371
    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
slouken@2753
   372
    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
slouken@0
   373
slouken@2753
   374
    if (a.w != b.w) {
slouken@2753
   375
        return b.w - a.w;
slouken@2753
   376
    }
slouken@2753
   377
    if (a.h != b.h) {
slouken@2753
   378
        return b.h - a.h;
slouken@2753
   379
    }
slouken@2753
   380
    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
slouken@2753
   381
        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
slouken@2753
   382
    }
lestat@3178
   383
    if (SDL_PIXELLAYOUT(a.format) != SDL_PIXELLAYOUT(b.format)) {
lestat@3178
   384
        return SDL_PIXELLAYOUT(b.format) - SDL_PIXELLAYOUT(a.format);
lestat@3178
   385
    }
slouken@2753
   386
    if (a.refresh_rate != b.refresh_rate) {
slouken@2753
   387
        return b.refresh_rate - a.refresh_rate;
slouken@2753
   388
    }
slouken@2753
   389
    return 0;
slouken@1895
   390
}
slouken@1895
   391
slouken@1912
   392
static void
slouken@1912
   393
SDL_UninitializedVideo()
slouken@1912
   394
{
slouken@2753
   395
    SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   396
}
slouken@1912
   397
slouken@1895
   398
int
slouken@1895
   399
SDL_GetNumVideoDrivers(void)
slouken@1895
   400
{
slouken@2753
   401
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   402
}
slouken@1895
   403
slouken@2753
   404
const char *
slouken@1895
   405
SDL_GetVideoDriver(int index)
slouken@1895
   406
{
slouken@2753
   407
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   408
        return bootstrap[index]->name;
slouken@2753
   409
    }
slouken@2753
   410
    return NULL;
slouken@1895
   411
}
slouken@0
   412
slouken@0
   413
/*
slouken@0
   414
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   415
 */
slouken@1895
   416
int
slouken@5123
   417
SDL_VideoInit(const char *driver_name)
slouken@0
   418
{
slouken@2753
   419
    SDL_VideoDevice *video;
slouken@2753
   420
    int index;
slouken@2753
   421
    int i;
slouken@0
   422
slouken@3694
   423
    /* Check to make sure we don't overwrite '_this' */
slouken@3694
   424
    if (_this != NULL) {
slouken@3694
   425
        SDL_VideoQuit();
slouken@3694
   426
    }
slouken@3694
   427
slouken@2753
   428
    /* Start the event loop */
slouken@5123
   429
    if (SDL_StartEventLoop() < 0 ||
slouken@5123
   430
        SDL_KeyboardInit() < 0 ||
slouken@5123
   431
        SDL_MouseInit() < 0 ||
slouken@5123
   432
        SDL_TouchInit() < 0 ||
slouken@5123
   433
        SDL_QuitInit() < 0) {
slouken@2753
   434
        return -1;
slouken@2753
   435
    }
slouken@3694
   436
slouken@2753
   437
    /* Select the proper video driver */
slouken@2753
   438
    index = 0;
slouken@2753
   439
    video = NULL;
slouken@2753
   440
    if (driver_name == NULL) {
slouken@2753
   441
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   442
    }
slouken@2753
   443
    if (driver_name != NULL) {
slouken@2753
   444
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   445
            if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
slouken@3448
   446
                video = bootstrap[i]->create(index);
slouken@2753
   447
                break;
slouken@2753
   448
            }
slouken@2753
   449
        }
slouken@2753
   450
    } else {
slouken@2753
   451
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   452
            if (bootstrap[i]->available()) {
slouken@2753
   453
                video = bootstrap[i]->create(index);
slouken@2753
   454
                if (video != NULL) {
slouken@2753
   455
                    break;
slouken@2753
   456
                }
slouken@2753
   457
            }
slouken@2753
   458
        }
slouken@2753
   459
    }
slouken@2753
   460
    if (video == NULL) {
slouken@2753
   461
        if (driver_name) {
slouken@2753
   462
            SDL_SetError("%s not available", driver_name);
slouken@2753
   463
        } else {
slouken@2753
   464
            SDL_SetError("No available video device");
slouken@2753
   465
        }
slouken@2753
   466
        return -1;
slouken@2753
   467
    }
slouken@2753
   468
    _this = video;
slouken@2753
   469
    _this->name = bootstrap[i]->name;
slouken@2753
   470
    _this->next_object_id = 1;
slouken@0
   471
slouken@0
   472
slouken@2753
   473
    /* Set some very sane GL defaults */
slouken@2753
   474
    _this->gl_config.driver_loaded = 0;
slouken@2753
   475
    _this->gl_config.dll_handle = NULL;
slouken@2753
   476
    _this->gl_config.red_size = 3;
slouken@2753
   477
    _this->gl_config.green_size = 3;
slouken@2753
   478
    _this->gl_config.blue_size = 2;
slouken@2753
   479
    _this->gl_config.alpha_size = 0;
slouken@2753
   480
    _this->gl_config.buffer_size = 0;
slouken@2753
   481
    _this->gl_config.depth_size = 16;
slouken@2753
   482
    _this->gl_config.stencil_size = 0;
slouken@2753
   483
    _this->gl_config.double_buffer = 1;
slouken@2753
   484
    _this->gl_config.accum_red_size = 0;
slouken@2753
   485
    _this->gl_config.accum_green_size = 0;
slouken@2753
   486
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   487
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   488
    _this->gl_config.stereo = 0;
slouken@2753
   489
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   490
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   491
    _this->gl_config.retained_backing = 1;
slouken@3571
   492
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@5209
   493
#if SDL_VIDEO_OPENGL
slouken@3100
   494
    _this->gl_config.major_version = 2;
slouken@3100
   495
    _this->gl_config.minor_version = 1;
slouken@5217
   496
#elif SDL_VIDEO_OPENGL_ES
slouken@5217
   497
    _this->gl_config.major_version = 1;
slouken@5217
   498
    _this->gl_config.minor_version = 1;
slouken@5209
   499
#elif SDL_VIDEO_OPENGL_ES2
slouken@5209
   500
    _this->gl_config.major_version = 2;
slouken@5209
   501
    _this->gl_config.minor_version = 0;
slouken@5209
   502
#endif
slouken@6296
   503
    _this->gl_config.flags = 0;
slouken@6296
   504
    _this->gl_config.profile_mask = 0;
slouken@0
   505
slouken@2753
   506
    /* Initialize the video subsystem */
slouken@2753
   507
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   508
        SDL_VideoQuit();
slouken@2753
   509
        return -1;
slouken@2753
   510
    }
slouken@5166
   511
slouken@2753
   512
    /* Make sure some displays were added */
slouken@2753
   513
    if (_this->num_displays == 0) {
slouken@2753
   514
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   515
        SDL_VideoQuit();
slouken@2753
   516
        return (-1);
slouken@2753
   517
    }
slouken@0
   518
slouken@5190
   519
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   520
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   521
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   522
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   523
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   524
    }
slouken@5166
   525
slouken@2753
   526
    /* We're ready to go! */
slouken@2753
   527
    return 0;
slouken@0
   528
}
slouken@0
   529
slouken@2753
   530
const char *
slouken@1895
   531
SDL_GetCurrentVideoDriver()
slouken@0
   532
{
slouken@2753
   533
    if (!_this) {
slouken@2753
   534
        SDL_UninitializedVideo();
slouken@2753
   535
        return NULL;
slouken@2753
   536
    }
slouken@2753
   537
    return _this->name;
slouken@0
   538
}
slouken@0
   539
slouken@1895
   540
SDL_VideoDevice *
slouken@4472
   541
SDL_GetVideoDevice(void)
slouken@0
   542
{
slouken@2753
   543
    return _this;
slouken@0
   544
}
slouken@0
   545
slouken@1895
   546
int
slouken@1895
   547
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   548
{
slouken@2753
   549
    SDL_VideoDisplay display;
slouken@0
   550
slouken@2753
   551
    SDL_zero(display);
slouken@2753
   552
    if (desktop_mode) {
slouken@2753
   553
        display.desktop_mode = *desktop_mode;
slouken@2753
   554
    }
slouken@2753
   555
    display.current_mode = display.desktop_mode;
slouken@1895
   556
slouken@2753
   557
    return SDL_AddVideoDisplay(&display);
slouken@0
   558
}
slouken@0
   559
slouken@1895
   560
int
slouken@1895
   561
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   562
{
slouken@2753
   563
    SDL_VideoDisplay *displays;
slouken@2753
   564
    int index = -1;
slouken@0
   565
slouken@2753
   566
    displays =
slouken@2753
   567
        SDL_realloc(_this->displays,
slouken@2753
   568
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   569
    if (displays) {
slouken@2753
   570
        index = _this->num_displays++;
slouken@2753
   571
        displays[index] = *display;
slouken@2753
   572
        displays[index].device = _this;
slouken@2753
   573
        _this->displays = displays;
slouken@2753
   574
    } else {
slouken@2753
   575
        SDL_OutOfMemory();
slouken@2753
   576
    }
slouken@2753
   577
    return index;
slouken@0
   578
}
slouken@0
   579
slouken@1895
   580
int
slouken@1895
   581
SDL_GetNumVideoDisplays(void)
slouken@0
   582
{
slouken@2753
   583
    if (!_this) {
slouken@2753
   584
        SDL_UninitializedVideo();
slouken@2753
   585
        return 0;
slouken@2753
   586
    }
slouken@2753
   587
    return _this->num_displays;
slouken@0
   588
}
slouken@0
   589
slouken@6044
   590
static int
slouken@5380
   591
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   592
{
slouken@5380
   593
    int displayIndex;
slouken@5380
   594
slouken@5380
   595
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   596
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   597
            return displayIndex;
slouken@5380
   598
        }
slouken@5380
   599
    }
slouken@5380
   600
slouken@5380
   601
    /* Couldn't find the display, just use index 0 */
slouken@5380
   602
    return 0;
slouken@5380
   603
}
slouken@5380
   604
slouken@5380
   605
int
slouken@5244
   606
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   607
{
slouken@5244
   608
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   609
slouken@3528
   610
    if (rect) {
slouken@5244
   611
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   612
slouken@3528
   613
        if (_this->GetDisplayBounds) {
slouken@5249
   614
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   615
                return 0;
slouken@3528
   616
            }
slouken@5249
   617
        }
slouken@5249
   618
slouken@5249
   619
        /* Assume that the displays are left to right */
slouken@5249
   620
        if (displayIndex == 0) {
slouken@5249
   621
            rect->x = 0;
slouken@5249
   622
            rect->y = 0;
slouken@3528
   623
        } else {
slouken@5249
   624
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   625
            rect->x += rect->w;
slouken@3528
   626
        }
slouken@5249
   627
        rect->w = display->desktop_mode.w;
slouken@5249
   628
        rect->h = display->desktop_mode.h;
slouken@3528
   629
    }
slouken@3528
   630
    return 0;
slouken@3528
   631
}
slouken@3528
   632
slouken@1895
   633
SDL_bool
slouken@3500
   634
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   635
{
slouken@2753
   636
    SDL_DisplayMode *modes;
slouken@2753
   637
    int i, nmodes;
slouken@0
   638
slouken@2753
   639
    /* Make sure we don't already have the mode in the list */
slouken@2753
   640
    modes = display->display_modes;
slouken@2753
   641
    nmodes = display->num_display_modes;
slouken@2753
   642
    for (i = nmodes; i--;) {
slouken@2753
   643
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   644
            return SDL_FALSE;
slouken@2753
   645
        }
slouken@2753
   646
    }
slouken@1895
   647
slouken@2753
   648
    /* Go ahead and add the new mode */
slouken@2753
   649
    if (nmodes == display->max_display_modes) {
slouken@2753
   650
        modes =
slouken@2753
   651
            SDL_realloc(modes,
slouken@2753
   652
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   653
        if (!modes) {
slouken@2753
   654
            return SDL_FALSE;
slouken@2753
   655
        }
slouken@2753
   656
        display->display_modes = modes;
slouken@2753
   657
        display->max_display_modes += 32;
slouken@2753
   658
    }
slouken@2753
   659
    modes[nmodes] = *mode;
slouken@2753
   660
    display->num_display_modes++;
slouken@1895
   661
lestat@3178
   662
    /* Re-sort video modes */
lestat@3178
   663
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   664
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   665
slouken@2753
   666
    return SDL_TRUE;
slouken@0
   667
}
slouken@0
   668
slouken@5244
   669
static int
slouken@3500
   670
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   671
{
slouken@3500
   672
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   673
        _this->GetDisplayModes(_this, display);
slouken@3500
   674
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   675
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   676
    }
slouken@3500
   677
    return display->num_display_modes;
slouken@3500
   678
}
slouken@3500
   679
slouken@3500
   680
int
slouken@5244
   681
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   682
{
slouken@5244
   683
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   684
slouken@5244
   685
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   686
}
slouken@3500
   687
slouken@3500
   688
int
slouken@5244
   689
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   690
{
slouken@5244
   691
    SDL_VideoDisplay *display;
slouken@5244
   692
slouken@5244
   693
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   694
slouken@5244
   695
    display = &_this->displays[displayIndex];
slouken@3500
   696
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@3500
   697
        SDL_SetError("index must be in the range of 0 - %d",
slouken@3500
   698
                     SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   699
        return -1;
slouken@3500
   700
    }
slouken@3500
   701
    if (mode) {
slouken@3500
   702
        *mode = display->display_modes[index];
slouken@2753
   703
    }
slouken@2753
   704
    return 0;
slouken@0
   705
}
slouken@0
   706
slouken@1967
   707
int
slouken@5244
   708
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   709
{
slouken@5244
   710
    SDL_VideoDisplay *display;
slouken@3500
   711
slouken@5244
   712
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   713
slouken@5244
   714
    display = &_this->displays[displayIndex];
slouken@2753
   715
    if (mode) {
slouken@3500
   716
        *mode = display->desktop_mode;
slouken@2753
   717
    }
slouken@2753
   718
    return 0;
slouken@0
   719
}
slouken@0
   720
slouken@1967
   721
int
slouken@5244
   722
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   723
{
slouken@5244
   724
    SDL_VideoDisplay *display;
slouken@3500
   725
slouken@5244
   726
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   727
slouken@5244
   728
    display = &_this->displays[displayIndex];
slouken@2753
   729
    if (mode) {
slouken@3500
   730
        *mode = display->current_mode;
slouken@2753
   731
    }
slouken@2753
   732
    return 0;
slouken@0
   733
}
slouken@0
   734
slouken@5244
   735
static SDL_DisplayMode *
slouken@3500
   736
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   737
                                    const SDL_DisplayMode * mode,
slouken@3500
   738
                                    SDL_DisplayMode * closest)
slouken@0
   739
{
slouken@2753
   740
    Uint32 target_format;
slouken@2753
   741
    int target_refresh_rate;
slouken@2753
   742
    int i;
slouken@2753
   743
    SDL_DisplayMode *current, *match;
slouken@0
   744
slouken@3500
   745
    if (!mode || !closest) {
slouken@3500
   746
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   747
        return NULL;
slouken@2753
   748
    }
slouken@3500
   749
slouken@2753
   750
    /* Default to the desktop format */
slouken@2753
   751
    if (mode->format) {
slouken@2753
   752
        target_format = mode->format;
slouken@2753
   753
    } else {
slouken@3500
   754
        target_format = display->desktop_mode.format;
slouken@2753
   755
    }
slouken@0
   756
slouken@2753
   757
    /* Default to the desktop refresh rate */
slouken@2753
   758
    if (mode->refresh_rate) {
slouken@2753
   759
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   760
    } else {
slouken@3500
   761
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   762
    }
slouken@0
   763
slouken@2753
   764
    match = NULL;
slouken@3500
   765
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   766
        current = &display->display_modes[i];
slouken@0
   767
slouken@2789
   768
        if (current->w && (current->w < mode->w)) {
slouken@2753
   769
            /* Out of sorted modes large enough here */
slouken@2753
   770
            break;
slouken@2753
   771
        }
slouken@2789
   772
        if (current->h && (current->h < mode->h)) {
slouken@2789
   773
            if (current->w && (current->w == mode->w)) {
slouken@2789
   774
                /* Out of sorted modes large enough here */
slouken@2789
   775
                break;
slouken@2789
   776
            }
slouken@2789
   777
            /* Wider, but not tall enough, due to a different
slouken@2789
   778
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   779
               modes may still follow. */
slouken@2789
   780
            continue;
slouken@2789
   781
        }
slouken@2753
   782
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   783
            match = current;
slouken@2753
   784
            continue;
slouken@2753
   785
        }
slouken@2753
   786
        if (current->format != match->format) {
slouken@2753
   787
            /* Sorted highest depth to lowest */
slouken@2753
   788
            if (current->format == target_format ||
slouken@2753
   789
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   790
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   791
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   792
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   793
                match = current;
slouken@2753
   794
            }
slouken@2753
   795
            continue;
slouken@2753
   796
        }
slouken@2753
   797
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   798
            /* Sorted highest refresh to lowest */
slouken@2753
   799
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   800
                match = current;
slouken@2753
   801
            }
slouken@2753
   802
        }
slouken@2753
   803
    }
slouken@2753
   804
    if (match) {
slouken@2753
   805
        if (match->format) {
slouken@2753
   806
            closest->format = match->format;
slouken@2753
   807
        } else {
slouken@2753
   808
            closest->format = mode->format;
slouken@2753
   809
        }
slouken@2753
   810
        if (match->w && match->h) {
slouken@2753
   811
            closest->w = match->w;
slouken@2753
   812
            closest->h = match->h;
slouken@2753
   813
        } else {
slouken@2753
   814
            closest->w = mode->w;
slouken@2753
   815
            closest->h = mode->h;
slouken@2753
   816
        }
slouken@2753
   817
        if (match->refresh_rate) {
slouken@2753
   818
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   819
        } else {
slouken@2753
   820
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   821
        }
slouken@2753
   822
        closest->driverdata = match->driverdata;
slouken@1895
   823
slouken@2753
   824
        /*
slouken@2753
   825
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   826
         * care
slouken@2753
   827
         */
slouken@2753
   828
        if (!closest->format) {
slouken@2753
   829
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   830
        }
slouken@2753
   831
        if (!closest->w) {
slouken@2753
   832
            closest->w = 640;
slouken@2753
   833
        }
slouken@2753
   834
        if (!closest->h) {
slouken@2753
   835
            closest->h = 480;
slouken@2753
   836
        }
slouken@2753
   837
        return closest;
slouken@2753
   838
    }
slouken@2753
   839
    return NULL;
slouken@0
   840
}
slouken@0
   841
slouken@3500
   842
SDL_DisplayMode *
slouken@5244
   843
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   844
                          const SDL_DisplayMode * mode,
slouken@3500
   845
                          SDL_DisplayMode * closest)
slouken@3500
   846
{
slouken@5244
   847
    SDL_VideoDisplay *display;
slouken@5244
   848
slouken@5244
   849
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   850
slouken@5244
   851
    display = &_this->displays[displayIndex];
slouken@5244
   852
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   853
}
slouken@3500
   854
slouken@6044
   855
static int
slouken@3500
   856
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   857
{
slouken@2753
   858
    SDL_DisplayMode display_mode;
slouken@2753
   859
    SDL_DisplayMode current_mode;
slouken@0
   860
slouken@3502
   861
    if (mode) {
slouken@3502
   862
        display_mode = *mode;
slouken@3502
   863
slouken@3502
   864
        /* Default to the current mode */
slouken@3502
   865
        if (!display_mode.format) {
slouken@3502
   866
            display_mode.format = display->current_mode.format;
slouken@3502
   867
        }
slouken@3502
   868
        if (!display_mode.w) {
slouken@3502
   869
            display_mode.w = display->current_mode.w;
slouken@3502
   870
        }
slouken@3502
   871
        if (!display_mode.h) {
slouken@3502
   872
            display_mode.h = display->current_mode.h;
slouken@3502
   873
        }
slouken@3502
   874
        if (!display_mode.refresh_rate) {
slouken@3502
   875
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   876
        }
slouken@3502
   877
slouken@3502
   878
        /* Get a good video mode, the closest one possible */
slouken@3502
   879
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@3502
   880
            SDL_SetError("No video mode large enough for %dx%d",
slouken@3502
   881
                         display_mode.w, display_mode.h);
slouken@3502
   882
            return -1;
slouken@3502
   883
        }
slouken@3502
   884
    } else {
slouken@3502
   885
        display_mode = display->desktop_mode;
slouken@2753
   886
    }
slouken@3500
   887
slouken@2753
   888
    /* See if there's anything left to do */
slouken@5244
   889
    current_mode = display->current_mode;
slouken@2753
   890
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   891
        return 0;
slouken@2753
   892
    }
slouken@3500
   893
slouken@2753
   894
    /* Actually change the display mode */
slouken@4978
   895
    if (!_this->SetDisplayMode) {
slouken@4978
   896
        SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   897
        return -1;
slouken@4978
   898
    }
slouken@3500
   899
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   900
        return -1;
slouken@2753
   901
    }
slouken@2753
   902
    display->current_mode = display_mode;
slouken@2753
   903
    return 0;
slouken@0
   904
}
slouken@0
   905
slouken@1895
   906
int
slouken@5373
   907
SDL_GetWindowDisplay(SDL_Window * window)
slouken@5246
   908
{
slouken@5246
   909
    int displayIndex;
slouken@5246
   910
    int i, dist;
slouken@5246
   911
    int closest = -1;
slouken@5246
   912
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   913
    SDL_Point center;
slouken@5246
   914
    SDL_Point delta;
slouken@5246
   915
    SDL_Rect rect;
slouken@5246
   916
slouken@5246
   917
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   918
slouken@5246
   919
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   920
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   921
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   922
        if (displayIndex >= _this->num_displays) {
slouken@5246
   923
            displayIndex = 0;
slouken@5246
   924
        }
slouken@5246
   925
        return displayIndex;
slouken@5246
   926
    }
slouken@5246
   927
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   928
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   929
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   930
        if (displayIndex >= _this->num_displays) {
slouken@5246
   931
            displayIndex = 0;
slouken@5246
   932
        }
slouken@5246
   933
        return displayIndex;
slouken@5246
   934
    }
slouken@5246
   935
slouken@5246
   936
    /* Find the display containing the window */
slouken@5246
   937
    center.x = window->x + window->w / 2;
slouken@5246
   938
    center.y = window->y + window->h / 2;
slouken@5246
   939
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   940
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@5246
   941
slouken@5246
   942
        SDL_GetDisplayBounds(i, &rect);
slouken@5246
   943
        if (display->fullscreen_window == window || SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   944
            return i;
slouken@5246
   945
        }
slouken@5246
   946
slouken@5246
   947
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   948
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   949
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   950
        if (dist < closest_dist) {
slouken@5246
   951
            closest = i;
slouken@5246
   952
            closest_dist = dist;
slouken@5246
   953
        }
slouken@5246
   954
    }
slouken@5246
   955
    if (closest < 0) {
slouken@5246
   956
        SDL_SetError("Couldn't find any displays");
slouken@5246
   957
    }
slouken@5246
   958
    return closest;
slouken@5246
   959
}
slouken@5246
   960
slouken@5246
   961
SDL_VideoDisplay *
slouken@5246
   962
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   963
{
slouken@5373
   964
    int displayIndex = SDL_GetWindowDisplay(window);
slouken@5373
   965
    if (displayIndex >= 0) {
slouken@5373
   966
        return &_this->displays[displayIndex];
slouken@5373
   967
    } else {
slouken@5373
   968
        return NULL;
slouken@5373
   969
    }
slouken@5246
   970
}
slouken@5246
   971
slouken@5246
   972
int
slouken@3685
   973
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
   974
{
slouken@3695
   975
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   976
slouken@2753
   977
    if (mode) {
slouken@3500
   978
        window->fullscreen_mode = *mode;
slouken@3500
   979
    } else {
slouken@3500
   980
        SDL_zero(window->fullscreen_mode);
slouken@3500
   981
    }
slouken@3526
   982
    return 0;
slouken@3500
   983
}
slouken@3500
   984
slouken@3500
   985
int
slouken@3685
   986
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
   987
{
slouken@3500
   988
    SDL_DisplayMode fullscreen_mode;
slouken@3500
   989
slouken@3695
   990
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   991
slouken@3500
   992
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
   993
    if (!fullscreen_mode.w) {
slouken@3500
   994
        fullscreen_mode.w = window->w;
slouken@3500
   995
    }
slouken@3500
   996
    if (!fullscreen_mode.h) {
slouken@3500
   997
        fullscreen_mode.h = window->h;
slouken@3500
   998
    }
slouken@3500
   999
slouken@5246
  1000
    if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1001
                                             &fullscreen_mode,
slouken@3500
  1002
                                             &fullscreen_mode)) {
slouken@3500
  1003
        SDL_SetError("Couldn't find display mode match");
slouken@3500
  1004
        return -1;
slouken@3500
  1005
    }
slouken@3500
  1006
slouken@3500
  1007
    if (mode) {
slouken@3500
  1008
        *mode = fullscreen_mode;
slouken@2753
  1009
    }
slouken@2753
  1010
    return 0;
slouken@0
  1011
}
slouken@0
  1012
slouken@5154
  1013
Uint32
slouken@5154
  1014
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1015
{
slouken@5246
  1016
    SDL_VideoDisplay *display;
slouken@5246
  1017
slouken@5246
  1018
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1019
slouken@5246
  1020
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1021
    return display->current_mode.format;
slouken@5154
  1022
}
slouken@5154
  1023
slouken@3502
  1024
static void
slouken@5479
  1025
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1026
{
slouken@5479
  1027
    int x, y;
slouken@5479
  1028
slouken@5479
  1029
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1030
        SDL_GetMouseState(&x, &y);
slouken@5479
  1031
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1032
    }
slouken@5479
  1033
}
slouken@5479
  1034
slouken@5479
  1035
static void
slouken@5404
  1036
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1037
{
slouken@5246
  1038
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1039
    SDL_Window *other;
slouken@3502
  1040
slouken@5404
  1041
    if (fullscreen) {
slouken@3502
  1042
        /* Hide any other fullscreen windows */
slouken@5249
  1043
        if (display->fullscreen_window &&
slouken@5249
  1044
            display->fullscreen_window != window) {
slouken@5246
  1045
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1046
        }
slouken@3502
  1047
    }
slouken@3502
  1048
slouken@5305
  1049
    /* See if anything needs to be done now */
slouken@5404
  1050
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1051
        return;
slouken@5305
  1052
    }
slouken@5305
  1053
slouken@5249
  1054
    /* See if there are any fullscreen windows */
slouken@5249
  1055
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1056
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1057
slouken@5404
  1058
        if (other == window) {
slouken@5404
  1059
            setDisplayMode = fullscreen;
slouken@5404
  1060
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1061
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1062
            setDisplayMode = SDL_TRUE;
slouken@5404
  1063
        }
slouken@5404
  1064
slouken@5404
  1065
        if (setDisplayMode) {
slouken@5249
  1066
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1067
slouken@5249
  1068
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1069
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1070
slouken@5306
  1071
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1072
                    resized = SDL_FALSE;
slouken@5249
  1073
                }
slouken@3502
  1074
slouken@3502
  1075
                SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@5249
  1076
                if (_this->SetWindowFullscreen) {
slouken@5305
  1077
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1078
                }
slouken@5249
  1079
                display->fullscreen_window = other;
slouken@5249
  1080
slouken@5306
  1081
                /* Generate a mode change event here */
slouken@5306
  1082
                if (resized) {
slouken@5306
  1083
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1084
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1085
                } else {
slouken@5306
  1086
                    SDL_OnWindowResized(other);
slouken@5306
  1087
                }
slouken@5479
  1088
slouken@5479
  1089
                SDL_RestoreMousePosition(other);
slouken@3502
  1090
                return;
slouken@3502
  1091
            }
slouken@3502
  1092
        }
slouken@3502
  1093
    }
slouken@3502
  1094
slouken@3502
  1095
    /* Nope, restore the desktop mode */
slouken@3502
  1096
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1097
slouken@5249
  1098
    if (_this->SetWindowFullscreen) {
slouken@5305
  1099
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1100
    }
slouken@3517
  1101
    display->fullscreen_window = NULL;
slouken@5306
  1102
slouken@5306
  1103
    /* Generate a mode change event here */
slouken@5306
  1104
    SDL_OnWindowResized(window);
slouken@5479
  1105
slouken@5479
  1106
    /* Restore the cursor position */
slouken@5479
  1107
    SDL_RestoreMousePosition(window);
slouken@3502
  1108
}
slouken@3502
  1109
slouken@5380
  1110
#define CREATE_FLAGS \
slouken@5380
  1111
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1112
slouken@5380
  1113
static void
slouken@5380
  1114
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1115
{
slouken@5398
  1116
    window->windowed.x = window->x;
slouken@5398
  1117
    window->windowed.y = window->y;
slouken@5398
  1118
    window->windowed.w = window->w;
slouken@5398
  1119
    window->windowed.h = window->h;
slouken@5398
  1120
slouken@5380
  1121
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1122
        SDL_MaximizeWindow(window);
slouken@5380
  1123
    }
slouken@5380
  1124
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1125
        SDL_MinimizeWindow(window);
slouken@5380
  1126
    }
slouken@5380
  1127
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@5380
  1128
        SDL_SetWindowFullscreen(window, SDL_TRUE);
slouken@5380
  1129
    }
slouken@5380
  1130
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1131
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1132
    }
slouken@5380
  1133
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1134
        SDL_ShowWindow(window);
slouken@5380
  1135
    }
slouken@5380
  1136
}
slouken@5380
  1137
slouken@3685
  1138
SDL_Window *
slouken@1895
  1139
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1140
{
slouken@3685
  1141
    SDL_Window *window;
slouken@0
  1142
slouken@2753
  1143
    if (!_this) {
slouken@3417
  1144
        /* Initialize the video system if needed */
slouken@5123
  1145
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1146
            return NULL;
slouken@3417
  1147
        }
slouken@2753
  1148
    }
slouken@5249
  1149
slouken@6266
  1150
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1151
    if (w < 1) {
slouken@6266
  1152
        w = 1;
slouken@6266
  1153
    }
slouken@6266
  1154
    if (h < 1) {
slouken@6266
  1155
        h = 1;
slouken@6266
  1156
    }
slouken@6266
  1157
slouken@5249
  1158
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1159
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1160
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1161
#endif
slouken@3057
  1162
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1163
        if (!_this->GL_CreateContext) {
slouken@3057
  1164
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1165
            return NULL;
slouken@3057
  1166
        }
slouken@3057
  1167
        SDL_GL_LoadLibrary(NULL);
slouken@2753
  1168
    }
slouken@3685
  1169
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1170
    window->magic = &_this->window_magic;
slouken@3685
  1171
    window->id = _this->next_object_id++;
slouken@3685
  1172
    window->x = x;
slouken@3685
  1173
    window->y = y;
slouken@3685
  1174
    window->w = w;
slouken@3685
  1175
    window->h = h;
slouken@5380
  1176
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1177
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1178
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1179
        int displayIndex;
slouken@5380
  1180
        SDL_Rect bounds;
slouken@5380
  1181
slouken@5380
  1182
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1183
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1184
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1185
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1186
        }
slouken@5380
  1187
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1188
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1189
        }
slouken@5380
  1190
    }
slouken@5380
  1191
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1192
    window->brightness = 1.0f;
slouken@5246
  1193
    window->next = _this->windows;
slouken@5246
  1194
    if (_this->windows) {
slouken@5246
  1195
        _this->windows->prev = window;
slouken@3693
  1196
    }
slouken@5246
  1197
    _this->windows = window;
slouken@3685
  1198
slouken@3685
  1199
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1200
        SDL_DestroyWindow(window);
slouken@3685
  1201
        return NULL;
slouken@3685
  1202
    }
slouken@0
  1203
slouken@2753
  1204
    if (title) {
slouken@3685
  1205
        SDL_SetWindowTitle(window, title);
slouken@2753
  1206
    }
slouken@5380
  1207
    SDL_FinishWindowCreation(window, flags);
slouken@6063
  1208
    
slouken@6063
  1209
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1210
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1211
slouken@3685
  1212
    return window;
slouken@1895
  1213
}
slouken@0
  1214
slouken@3685
  1215
SDL_Window *
slouken@1895
  1216
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1217
{
slouken@3685
  1218
    SDL_Window *window;
slouken@0
  1219
slouken@2753
  1220
    if (!_this) {
slouken@2753
  1221
        SDL_UninitializedVideo();
slouken@3685
  1222
        return NULL;
slouken@3685
  1223
    }
slouken@3685
  1224
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1225
    window->magic = &_this->window_magic;
slouken@3685
  1226
    window->id = _this->next_object_id++;
slouken@3685
  1227
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1228
    window->brightness = 1.0f;
slouken@5246
  1229
    window->next = _this->windows;
slouken@5246
  1230
    if (_this->windows) {
slouken@5246
  1231
        _this->windows->prev = window;
slouken@3693
  1232
    }
slouken@5246
  1233
    _this->windows = window;
slouken@1895
  1234
slouken@2753
  1235
    if (!_this->CreateWindowFrom ||
slouken@3685
  1236
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1237
        SDL_DestroyWindow(window);
slouken@3685
  1238
        return NULL;
slouken@3685
  1239
    }
slouken@3685
  1240
    return window;
slouken@1895
  1241
}
slouken@1895
  1242
slouken@1924
  1243
int
slouken@1928
  1244
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1245
{
slouken@2753
  1246
    char *title = window->title;
slouken@1956
  1247
slouken@2753
  1248
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
  1249
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1250
        return -1;
slouken@2753
  1251
    }
slouken@3057
  1252
slouken@3057
  1253
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1254
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1255
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1256
    } else {
slouken@3057
  1257
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1258
    }
slouken@3057
  1259
slouken@5249
  1260
    /* Restore video mode, etc. */
slouken@5305
  1261
    SDL_HideWindow(window);
slouken@5249
  1262
slouken@5249
  1263
    /* Tear down the old native window */
slouken@5249
  1264
    if (window->surface) {
slouken@5288
  1265
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1266
        SDL_FreeSurface(window->surface);
slouken@5249
  1267
    }
slouken@5249
  1268
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1269
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1270
    }
slouken@3057
  1271
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1272
        _this->DestroyWindow(_this, window);
slouken@2753
  1273
    }
slouken@3057
  1274
slouken@5249
  1275
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1276
        if (flags & SDL_WINDOW_OPENGL) {
slouken@5249
  1277
            SDL_GL_LoadLibrary(NULL);
slouken@5249
  1278
        } else {
slouken@5249
  1279
            SDL_GL_UnloadLibrary();
slouken@5249
  1280
        }
slouken@5249
  1281
    }
slouken@5249
  1282
slouken@2753
  1283
    window->title = NULL;
slouken@5380
  1284
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1285
slouken@3057
  1286
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1287
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1288
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1289
                SDL_GL_UnloadLibrary();
slouken@3057
  1290
            }
slouken@3057
  1291
            return -1;
slouken@3057
  1292
        }
slouken@2753
  1293
    }
slouken@3057
  1294
slouken@2753
  1295
    if (title) {
slouken@3685
  1296
        SDL_SetWindowTitle(window, title);
slouken@2753
  1297
        SDL_free(title);
slouken@2753
  1298
    }
slouken@5380
  1299
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1300
slouken@2753
  1301
    return 0;
slouken@1924
  1302
}
slouken@1924
  1303
slouken@1895
  1304
Uint32
slouken@3685
  1305
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1306
{
slouken@3695
  1307
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1308
slouken@3685
  1309
    return window->id;
slouken@3685
  1310
}
slouken@3685
  1311
slouken@3685
  1312
SDL_Window *
slouken@3685
  1313
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1314
{
slouken@3685
  1315
    SDL_Window *window;
slouken@3685
  1316
slouken@3685
  1317
    if (!_this) {
slouken@3685
  1318
        return NULL;
slouken@3685
  1319
    }
slouken@5246
  1320
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1321
        if (window->id == id) {
slouken@5246
  1322
            return window;
slouken@3685
  1323
        }
slouken@3685
  1324
    }
slouken@3685
  1325
    return NULL;
slouken@3685
  1326
}
slouken@3685
  1327
slouken@3685
  1328
Uint32
slouken@3685
  1329
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1330
{
slouken@3695
  1331
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1332
slouken@2753
  1333
    return window->flags;
slouken@1895
  1334
}
slouken@1895
  1335
slouken@1895
  1336
void
slouken@3685
  1337
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1338
{
slouken@3695
  1339
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1340
slouken@3695
  1341
    if (title == window->title) {
slouken@2753
  1342
        return;
slouken@2753
  1343
    }
slouken@2753
  1344
    if (window->title) {
slouken@2753
  1345
        SDL_free(window->title);
slouken@2753
  1346
    }
slouken@4871
  1347
    if (title && *title) {
slouken@2753
  1348
        window->title = SDL_strdup(title);
slouken@2753
  1349
    } else {
slouken@2753
  1350
        window->title = NULL;
slouken@2753
  1351
    }
slouken@1956
  1352
slouken@2753
  1353
    if (_this->SetWindowTitle) {
slouken@2753
  1354
        _this->SetWindowTitle(_this, window);
slouken@2753
  1355
    }
slouken@1895
  1356
}
slouken@1895
  1357
slouken@2753
  1358
const char *
slouken@3685
  1359
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1360
{
slouken@4872
  1361
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1362
slouken@4871
  1363
    return window->title ? window->title : "";
slouken@1895
  1364
}
slouken@1895
  1365
slouken@1895
  1366
void
slouken@3685
  1367
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1368
{
slouken@3695
  1369
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1370
slouken@5375
  1371
    if (!icon) {
slouken@5375
  1372
        return;
slouken@5375
  1373
    }
slouken@5375
  1374
slouken@2967
  1375
    if (_this->SetWindowIcon) {
slouken@2967
  1376
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1377
    }
slouken@2967
  1378
}
slouken@2967
  1379
slouken@5165
  1380
void*
slouken@5165
  1381
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1382
{
slouken@5165
  1383
    SDL_WindowUserData *prev, *data;
slouken@3695
  1384
slouken@5165
  1385
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5165
  1386
slouken@5165
  1387
    /* See if the named data already exists */
slouken@5165
  1388
    prev = NULL;
slouken@5165
  1389
    for (data = window->data; data; prev = data, data = data->next) {
slouken@5165
  1390
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1391
            void *last_value = data->data;
slouken@5165
  1392
slouken@5165
  1393
            if (userdata) {
slouken@5165
  1394
                /* Set the new value */
slouken@5165
  1395
                data->data = userdata;
slouken@5165
  1396
            } else {
slouken@5165
  1397
                /* Delete this value */
slouken@5165
  1398
                if (prev) {
slouken@5165
  1399
                    prev->next = data->next;
slouken@5165
  1400
                } else {
slouken@5165
  1401
                    window->data = data->next;
slouken@5165
  1402
                }
slouken@5165
  1403
                SDL_free(data->name);
slouken@5165
  1404
                SDL_free(data);
slouken@5165
  1405
            }
slouken@5165
  1406
            return last_value;
slouken@5165
  1407
        }
slouken@5165
  1408
    }
slouken@5165
  1409
slouken@5165
  1410
    /* Add new data to the window */
slouken@5165
  1411
    if (userdata) {
slouken@5165
  1412
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1413
        data->name = SDL_strdup(name);
slouken@5165
  1414
        data->data = userdata;
slouken@5165
  1415
        data->next = window->data;
slouken@5165
  1416
        window->data = data;
slouken@5165
  1417
    }
slouken@5165
  1418
    return NULL;
slouken@1895
  1419
}
slouken@1895
  1420
slouken@2753
  1421
void *
slouken@5165
  1422
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1423
{
slouken@5165
  1424
    SDL_WindowUserData *data;
slouken@5165
  1425
slouken@3695
  1426
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1427
slouken@5165
  1428
    for (data = window->data; data; data = data->next) {
slouken@5165
  1429
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1430
            return data->data;
slouken@5165
  1431
        }
slouken@5165
  1432
    }
slouken@5165
  1433
    return NULL;
slouken@1895
  1434
}
slouken@1895
  1435
slouken@1895
  1436
void
slouken@3685
  1437
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1438
{
slouken@3695
  1439
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1440
slouken@5305
  1441
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1442
        window->x = x;
slouken@2753
  1443
    }
slouken@5305
  1444
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1445
        window->y = y;
slouken@2753
  1446
    }
slouken@5478
  1447
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1448
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5478
  1449
        int displayIndex;
slouken@5478
  1450
        SDL_Rect bounds;
slouken@5478
  1451
slouken@5478
  1452
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5478
  1453
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5478
  1454
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5478
  1455
            window->x = bounds.x + (bounds.w - window->w) / 2;
slouken@5478
  1456
        }
slouken@5478
  1457
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1458
            window->y = bounds.y + (bounds.h - window->h) / 2;
slouken@5478
  1459
        }
slouken@5478
  1460
    }
slouken@5246
  1461
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1462
        if (_this->SetWindowPosition) {
slouken@5246
  1463
            _this->SetWindowPosition(_this, window);
slouken@5246
  1464
        }
slouken@5246
  1465
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1466
    }
slouken@1895
  1467
}
slouken@1895
  1468
slouken@1895
  1469
void
slouken@3685
  1470
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1471
{
slouken@5246
  1472
    /* Clear the values */
slouken@5246
  1473
    if (x) {
slouken@5246
  1474
        *x = 0;
slouken@5246
  1475
    }
slouken@5246
  1476
    if (y) {
slouken@5246
  1477
        *y = 0;
slouken@5246
  1478
    }
slouken@5246
  1479
slouken@5246
  1480
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1481
slouken@5246
  1482
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1483
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@5246
  1484
    } else {
slouken@5242
  1485
        if (x) {
slouken@5242
  1486
            *x = window->x;
slouken@5242
  1487
        }
slouken@5242
  1488
        if (y) {
slouken@5242
  1489
            *y = window->y;
slouken@5242
  1490
        }
slouken@2753
  1491
    }
slouken@1895
  1492
}
slouken@1895
  1493
slouken@1895
  1494
void
slouken@3685
  1495
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1496
{
slouken@3695
  1497
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1498
slouken@5249
  1499
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1500
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1501
        window->w = w;
slouken@5276
  1502
        window->h = h;
slouken@5249
  1503
        if (_this->SetWindowSize) {
slouken@5249
  1504
            _this->SetWindowSize(_this, window);
slouken@5249
  1505
        }
slouken@5276
  1506
        if (window->w == w && window->h == h) {
slouken@5276
  1507
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1508
            SDL_OnWindowResized(window);
slouken@5276
  1509
        }
slouken@2753
  1510
    }
slouken@1895
  1511
}
slouken@1895
  1512
slouken@1895
  1513
void
slouken@3685
  1514
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1515
{
slouken@5246
  1516
    int dummy;
slouken@5246
  1517
slouken@5246
  1518
    if (!w) {
slouken@5246
  1519
        w = &dummy;
slouken@5246
  1520
    }
slouken@5246
  1521
    if (!h) {
slouken@5246
  1522
        h = &dummy;
slouken@5246
  1523
    }
slouken@5246
  1524
slouken@5246
  1525
    *w = 0;
slouken@5246
  1526
    *h = 0;
slouken@5246
  1527
slouken@5246
  1528
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1529
slouken@5242
  1530
    if (_this && window && window->magic == &_this->window_magic) {
slouken@2849
  1531
        if (w) {
slouken@2849
  1532
            *w = window->w;
slouken@2849
  1533
        }
slouken@2849
  1534
        if (h) {
slouken@2849
  1535
            *h = window->h;
slouken@2849
  1536
        }
slouken@2849
  1537
    } else {
slouken@2849
  1538
        if (w) {
slouken@2849
  1539
            *w = 0;
slouken@2849
  1540
        }
slouken@2849
  1541
        if (h) {
slouken@2849
  1542
            *h = 0;
slouken@2849
  1543
        }
slouken@2753
  1544
    }
slouken@1895
  1545
}
slouken@1895
  1546
slouken@1895
  1547
void
slouken@3685
  1548
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1549
{
slouken@3695
  1550
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1551
slouken@3695
  1552
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1553
        return;
slouken@2753
  1554
    }
slouken@1895
  1555
slouken@2753
  1556
    if (_this->ShowWindow) {
slouken@2753
  1557
        _this->ShowWindow(_this, window);
slouken@2753
  1558
    }
slouken@3685
  1559
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1560
}
slouken@1895
  1561
slouken@1895
  1562
void
slouken@3685
  1563
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1564
{
slouken@3695
  1565
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1566
slouken@3695
  1567
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1568
        return;
slouken@2753
  1569
    }
slouken@1895
  1570
slouken@5404
  1571
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1572
slouken@2753
  1573
    if (_this->HideWindow) {
slouken@2753
  1574
        _this->HideWindow(_this, window);
slouken@2753
  1575
    }
slouken@3685
  1576
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1577
}
slouken@1895
  1578
slouken@1895
  1579
void
slouken@3685
  1580
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1581
{
slouken@3695
  1582
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1583
slouken@3695
  1584
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1585
        return;
slouken@2753
  1586
    }
slouken@2753
  1587
    if (_this->RaiseWindow) {
slouken@2753
  1588
        _this->RaiseWindow(_this, window);
slouken@2753
  1589
    }
slouken@1895
  1590
}
slouken@1895
  1591
slouken@1895
  1592
void
slouken@3685
  1593
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1594
{
slouken@3695
  1595
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1596
slouken@3695
  1597
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1598
        return;
slouken@2753
  1599
    }
slouken@1895
  1600
slouken@2753
  1601
    if (_this->MaximizeWindow) {
slouken@2753
  1602
        _this->MaximizeWindow(_this, window);
slouken@2753
  1603
    }
slouken@1895
  1604
}
slouken@1895
  1605
slouken@1895
  1606
void
slouken@3685
  1607
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1608
{
slouken@3695
  1609
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1610
slouken@3695
  1611
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1612
        return;
slouken@2753
  1613
    }
slouken@1895
  1614
slouken@5404
  1615
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1616
slouken@2753
  1617
    if (_this->MinimizeWindow) {
slouken@2753
  1618
        _this->MinimizeWindow(_this, window);
slouken@2753
  1619
    }
slouken@1895
  1620
}
slouken@1895
  1621
slouken@1895
  1622
void
slouken@3685
  1623
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1624
{
slouken@3695
  1625
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1626
slouken@3695
  1627
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1628
        return;
slouken@2753
  1629
    }
slouken@1895
  1630
slouken@2753
  1631
    if (_this->RestoreWindow) {
slouken@2753
  1632
        _this->RestoreWindow(_this, window);
slouken@2753
  1633
    }
slouken@1895
  1634
}
slouken@1895
  1635
slouken@1895
  1636
int
slouken@5246
  1637
SDL_SetWindowFullscreen(SDL_Window * window, SDL_bool fullscreen)
slouken@1895
  1638
{
slouken@3695
  1639
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1640
slouken@5404
  1641
    if (!!fullscreen == !!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@2753
  1642
        return 0;
slouken@2753
  1643
    }
slouken@2753
  1644
    if (fullscreen) {
slouken@2753
  1645
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@2753
  1646
    } else {
slouken@2753
  1647
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@5305
  1648
    }
slouken@5404
  1649
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1650
slouken@2753
  1651
    return 0;
slouken@1895
  1652
}
slouken@1895
  1653
slouken@5166
  1654
static SDL_Surface *
slouken@5166
  1655
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1656
{
slouken@5166
  1657
    Uint32 format;
slouken@5166
  1658
    void *pixels;
slouken@5166
  1659
    int pitch;
slouken@5166
  1660
    int bpp;
slouken@5166
  1661
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1662
slouken@5166
  1663
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1664
        return NULL;
slouken@5166
  1665
    }
slouken@5166
  1666
slouken@5166
  1667
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1668
        return NULL;
slouken@5166
  1669
    }
slouken@5166
  1670
slouken@5166
  1671
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1672
        return NULL;
slouken@5166
  1673
    }
slouken@5166
  1674
slouken@5166
  1675
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1676
}
slouken@5166
  1677
slouken@5166
  1678
SDL_Surface *
slouken@5166
  1679
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1680
{
slouken@5166
  1681
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1682
slouken@5172
  1683
    if (!window->surface_valid) {
slouken@5172
  1684
        if (window->surface) {
slouken@5288
  1685
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1686
            SDL_FreeSurface(window->surface);
slouken@5172
  1687
        }
slouken@5166
  1688
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1689
        if (window->surface) {
slouken@5172
  1690
            window->surface_valid = SDL_TRUE;
slouken@5288
  1691
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1692
        }
slouken@5166
  1693
    }
slouken@5166
  1694
    return window->surface;
slouken@5166
  1695
}
slouken@5166
  1696
slouken@5166
  1697
int
slouken@5166
  1698
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1699
{
slouken@5166
  1700
    SDL_Rect full_rect;
slouken@5166
  1701
slouken@5166
  1702
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1703
slouken@5166
  1704
    full_rect.x = 0;
slouken@5166
  1705
    full_rect.y = 0;
slouken@5166
  1706
    full_rect.w = window->w;
slouken@5166
  1707
    full_rect.h = window->h;
slouken@5297
  1708
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1709
}
slouken@5166
  1710
slouken@5166
  1711
int
slouken@5297
  1712
SDL_UpdateWindowSurfaceRects(SDL_Window * window, SDL_Rect * rects,
slouken@5297
  1713
                             int numrects)
slouken@5166
  1714
{
slouken@5166
  1715
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1716
slouken@5172
  1717
    if (!window->surface_valid) {
slouken@5166
  1718
        SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1719
        return -1;
slouken@5166
  1720
    }
slouken@5166
  1721
slouken@5297
  1722
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1723
}
slouken@5166
  1724
slouken@5466
  1725
int
slouken@5466
  1726
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1727
{
slouken@5466
  1728
    Uint16 ramp[256];
slouken@5466
  1729
    int status;
slouken@5466
  1730
slouken@5466
  1731
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1732
slouken@5466
  1733
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1734
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1735
    if (status == 0) {
slouken@5466
  1736
        window->brightness = brightness;
slouken@5466
  1737
    }
slouken@5466
  1738
    return status;
slouken@5466
  1739
}
slouken@5466
  1740
slouken@5466
  1741
float
slouken@5466
  1742
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1743
{
slouken@5466
  1744
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1745
slouken@5466
  1746
    return window->brightness;
slouken@5466
  1747
}
slouken@5466
  1748
slouken@5466
  1749
int
slouken@5466
  1750
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1751
                                            const Uint16 * green,
slouken@5466
  1752
                                            const Uint16 * blue)
slouken@5466
  1753
{
slouken@5466
  1754
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1755
slouken@5466
  1756
    if (!_this->SetWindowGammaRamp) {
slouken@5466
  1757
        SDL_Unsupported();
slouken@5466
  1758
        return -1;
slouken@5466
  1759
    }
slouken@5466
  1760
slouken@5466
  1761
    if (!window->gamma) {
slouken@5466
  1762
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1763
            return -1;
slouken@5466
  1764
        }
slouken@5466
  1765
    }
slouken@5466
  1766
slouken@5466
  1767
    if (red) {
slouken@5466
  1768
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1769
    }
slouken@5466
  1770
    if (green) {
slouken@5466
  1771
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1772
    }
slouken@5466
  1773
    if (blue) {
slouken@5466
  1774
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1775
    }
slouken@5466
  1776
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1777
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1778
    } else {
slouken@5466
  1779
        return 0;
slouken@5466
  1780
    }
slouken@5466
  1781
}
slouken@5466
  1782
slouken@5466
  1783
int
slouken@5466
  1784
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1785
                                            Uint16 * green,
slouken@5466
  1786
                                            Uint16 * blue)
slouken@5466
  1787
{
slouken@5466
  1788
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1789
slouken@5466
  1790
    if (!window->gamma) {
slouken@5466
  1791
        int i;
slouken@5466
  1792
slouken@5466
  1793
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1794
        if (!window->gamma) {
slouken@5466
  1795
            SDL_OutOfMemory();
slouken@5466
  1796
            return -1;
slouken@5466
  1797
        }
slouken@5466
  1798
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1799
slouken@5466
  1800
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1801
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1802
                return -1;
slouken@5466
  1803
            }
slouken@5466
  1804
        } else {
slouken@5466
  1805
            /* Create an identity gamma ramp */
slouken@5466
  1806
            for (i = 0; i < 256; ++i) {
slouken@5466
  1807
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1808
slouken@5466
  1809
                window->gamma[0*256+i] = value;
slouken@5466
  1810
                window->gamma[1*256+i] = value;
slouken@5466
  1811
                window->gamma[2*256+i] = value;
slouken@5466
  1812
            }
slouken@5466
  1813
        }
slouken@5466
  1814
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1815
    }
slouken@5466
  1816
slouken@5466
  1817
    if (red) {
slouken@5466
  1818
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1819
    }
slouken@5466
  1820
    if (green) {
slouken@5466
  1821
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1822
    }
slouken@5466
  1823
    if (blue) {
slouken@5466
  1824
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1825
    }
slouken@5466
  1826
    return 0;
slouken@5466
  1827
}
slouken@5466
  1828
slouken@2875
  1829
static void
slouken@2876
  1830
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1831
{
slouken@2753
  1832
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1833
        _this->SetWindowGrab(_this, window);
slouken@2753
  1834
    }
slouken@1895
  1835
}
slouken@1895
  1836
slouken@5403
  1837
void
slouken@5403
  1838
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  1839
{
slouken@5403
  1840
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  1841
slouken@5404
  1842
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  1843
        return;
slouken@5403
  1844
    }
slouken@5403
  1845
    if (grabbed) {
slouken@5403
  1846
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1847
    } else {
slouken@5403
  1848
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1849
    }
slouken@5403
  1850
    SDL_UpdateWindowGrab(window);
slouken@5403
  1851
}
slouken@5403
  1852
slouken@5403
  1853
SDL_bool
slouken@3685
  1854
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  1855
{
slouken@5466
  1856
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  1857
slouken@2753
  1858
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1859
}
slouken@1895
  1860
slouken@1895
  1861
void
slouken@1895
  1862
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1863
{
slouken@6260
  1864
    INVALIDATE_GLCONTEXT();
slouken@5404
  1865
    SDL_OnWindowRestored(window);
slouken@1895
  1866
}
slouken@1895
  1867
slouken@1895
  1868
void
slouken@1895
  1869
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1870
{
slouken@6260
  1871
    INVALIDATE_GLCONTEXT();
slouken@5404
  1872
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  1873
}
slouken@1895
  1874
slouken@1895
  1875
void
slouken@5166
  1876
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  1877
{
slouken@5172
  1878
    window->surface_valid = SDL_FALSE;
slouken@5276
  1879
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  1880
}
slouken@5166
  1881
slouken@5166
  1882
void
slouken@3502
  1883
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  1884
{
slouken@5404
  1885
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  1886
}
slouken@3502
  1887
slouken@3502
  1888
void
slouken@3502
  1889
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  1890
{
slouken@3685
  1891
    SDL_RaiseWindow(window);
slouken@5404
  1892
slouken@5404
  1893
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  1894
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  1895
    }
slouken@3502
  1896
}
slouken@3502
  1897
slouken@3502
  1898
void
slouken@1895
  1899
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1900
{
slouken@5466
  1901
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1902
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1903
    }
slouken@5466
  1904
slouken@5480
  1905
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1906
        _this->SetWindowGrab) {
slouken@2753
  1907
        _this->SetWindowGrab(_this, window);
slouken@2753
  1908
    }
slouken@1895
  1909
}
slouken@1895
  1910
slouken@1895
  1911
void
slouken@1895
  1912
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1913
{
slouken@5466
  1914
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1915
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  1916
    }
slouken@3512
  1917
slouken@5480
  1918
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1919
        _this->SetWindowGrab) {
slouken@2753
  1920
        _this->SetWindowGrab(_this, window);
slouken@2753
  1921
    }
slouken@5466
  1922
slouken@5466
  1923
    /* If we're fullscreen on a single-head system and lose focus, minimize */
slouken@5466
  1924
    if ((window->flags & SDL_WINDOW_FULLSCREEN) && _this->num_displays == 1) {
slouken@5466
  1925
        SDL_MinimizeWindow(window);
slouken@5466
  1926
    }
slouken@1895
  1927
}
slouken@1895
  1928
slouken@3685
  1929
SDL_Window *
slouken@1895
  1930
SDL_GetFocusWindow(void)
slouken@1895
  1931
{
slouken@3685
  1932
    SDL_Window *window;
slouken@1895
  1933
slouken@2753
  1934
    if (!_this) {
slouken@3685
  1935
        return NULL;
slouken@3685
  1936
    }
slouken@5246
  1937
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  1938
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  1939
            return window;
slouken@2753
  1940
        }
slouken@2753
  1941
    }
slouken@3685
  1942
    return NULL;
slouken@1895
  1943
}
slouken@1895
  1944
slouken@1895
  1945
void
slouken@3685
  1946
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  1947
{
slouken@3685
  1948
    SDL_VideoDisplay *display;
slouken@3685
  1949
slouken@3695
  1950
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  1951
slouken@6214
  1952
    /* Restore video mode, etc. */
slouken@6214
  1953
    SDL_HideWindow(window);
slouken@6214
  1954
slouken@6214
  1955
    /* Make sure this window no longer has focus */
slouken@6214
  1956
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  1957
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  1958
    }
slouken@6214
  1959
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  1960
        SDL_SetMouseFocus(NULL);
slouken@6214
  1961
    }
slouken@6214
  1962
icculus@5563
  1963
    /* make no context current if this is the current context window. */
icculus@5563
  1964
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  1965
        if (_this->current_glwin == window) {
icculus@5563
  1966
            SDL_GL_MakeCurrent(NULL, NULL);
icculus@5563
  1967
        }
icculus@5563
  1968
    }
icculus@5563
  1969
slouken@5169
  1970
    if (window->surface) {
slouken@5288
  1971
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  1972
        SDL_FreeSurface(window->surface);
slouken@5169
  1973
    }
slouken@5166
  1974
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  1975
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  1976
    }
slouken@3685
  1977
    if (_this->DestroyWindow) {
slouken@3685
  1978
        _this->DestroyWindow(_this, window);
slouken@3685
  1979
    }
slouken@3685
  1980
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  1981
        SDL_GL_UnloadLibrary();
slouken@3685
  1982
    }
slouken@3685
  1983
slouken@5246
  1984
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1985
    if (display->fullscreen_window == window) {
slouken@5246
  1986
        display->fullscreen_window = NULL;
slouken@5246
  1987
    }
slouken@5246
  1988
slouken@4901
  1989
    /* Now invalidate magic */
slouken@4897
  1990
    window->magic = NULL;
slouken@4897
  1991
slouken@5165
  1992
    /* Free memory associated with the window */
slouken@5165
  1993
    if (window->title) {
slouken@5165
  1994
        SDL_free(window->title);
slouken@5165
  1995
    }
slouken@5466
  1996
    if (window->gamma) {
slouken@5466
  1997
        SDL_free(window->gamma);
slouken@5466
  1998
    }
slouken@5165
  1999
    while (window->data) {
slouken@5165
  2000
        SDL_WindowUserData *data = window->data;
slouken@5165
  2001
slouken@5165
  2002
        window->data = data->next;
slouken@5165
  2003
        SDL_free(data->name);
slouken@5165
  2004
        SDL_free(data);
slouken@5165
  2005
    }
slouken@5165
  2006
slouken@3685
  2007
    /* Unlink the window from the list */
slouken@3693
  2008
    if (window->next) {
slouken@3693
  2009
        window->next->prev = window->prev;
slouken@3693
  2010
    }
slouken@3685
  2011
    if (window->prev) {
slouken@3685
  2012
        window->prev->next = window->next;
slouken@3685
  2013
    } else {
slouken@5246
  2014
        _this->windows = window->next;
slouken@3685
  2015
    }
slouken@3685
  2016
slouken@3685
  2017
    SDL_free(window);
slouken@1895
  2018
}
slouken@1895
  2019
slouken@3025
  2020
SDL_bool
slouken@3025
  2021
SDL_IsScreenSaverEnabled()
slouken@3025
  2022
{
slouken@3025
  2023
    if (!_this) {
slouken@3025
  2024
        return SDL_TRUE;
slouken@3025
  2025
    }
slouken@3025
  2026
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2027
}
slouken@3025
  2028
slouken@3025
  2029
void
slouken@3025
  2030
SDL_EnableScreenSaver()
slouken@3025
  2031
{
slouken@3025
  2032
    if (!_this) {
slouken@3025
  2033
        return;
slouken@3025
  2034
    }
slouken@3025
  2035
    if (!_this->suspend_screensaver) {
slouken@3025
  2036
        return;
slouken@3025
  2037
    }
slouken@3025
  2038
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2039
    if (_this->SuspendScreenSaver) {
slouken@3025
  2040
        _this->SuspendScreenSaver(_this);
slouken@3025
  2041
    }
slouken@3025
  2042
}
slouken@3025
  2043
slouken@3025
  2044
void
slouken@3025
  2045
SDL_DisableScreenSaver()
slouken@3025
  2046
{
slouken@3025
  2047
    if (!_this) {
slouken@3025
  2048
        return;
slouken@3025
  2049
    }
slouken@3025
  2050
    if (_this->suspend_screensaver) {
slouken@3025
  2051
        return;
slouken@3025
  2052
    }
slouken@3025
  2053
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2054
    if (_this->SuspendScreenSaver) {
slouken@3025
  2055
        _this->SuspendScreenSaver(_this);
slouken@3025
  2056
    }
slouken@3025
  2057
}
slouken@3025
  2058
slouken@1895
  2059
void
slouken@1895
  2060
SDL_VideoQuit(void)
slouken@1895
  2061
{
slouken@2753
  2062
    int i, j;
slouken@1895
  2063
slouken@2753
  2064
    if (!_this) {
slouken@2753
  2065
        return;
slouken@2753
  2066
    }
slouken@5123
  2067
slouken@2753
  2068
    /* Halt event processing before doing anything else */
slouken@5123
  2069
    SDL_QuitQuit();
slouken@5123
  2070
    SDL_MouseQuit();
slouken@5123
  2071
    SDL_KeyboardQuit();
slouken@2753
  2072
    SDL_StopEventLoop();
slouken@5123
  2073
slouken@3029
  2074
    SDL_EnableScreenSaver();
slouken@1895
  2075
slouken@2753
  2076
    /* Clean up the system video */
slouken@5246
  2077
    while (_this->windows) {
slouken@5246
  2078
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2079
    }
slouken@2753
  2080
    _this->VideoQuit(_this);
slouken@1895
  2081
slouken@2753
  2082
    for (i = _this->num_displays; i--;) {
slouken@2753
  2083
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2084
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2085
            if (display->display_modes[j].driverdata) {
slouken@2753
  2086
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2087
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2088
            }
slouken@2753
  2089
        }
slouken@2753
  2090
        if (display->display_modes) {
slouken@2753
  2091
            SDL_free(display->display_modes);
slouken@2753
  2092
            display->display_modes = NULL;
slouken@2753
  2093
        }
slouken@2753
  2094
        if (display->desktop_mode.driverdata) {
slouken@2753
  2095
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2096
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2097
        }
slouken@2753
  2098
        if (display->driverdata) {
slouken@2753
  2099
            SDL_free(display->driverdata);
slouken@2753
  2100
            display->driverdata = NULL;
slouken@2753
  2101
        }
slouken@2753
  2102
    }
slouken@2753
  2103
    if (_this->displays) {
slouken@2753
  2104
        SDL_free(_this->displays);
slouken@2753
  2105
        _this->displays = NULL;
slouken@2753
  2106
    }
slouken@4495
  2107
    if (_this->clipboard_text) {
slouken@4495
  2108
        SDL_free(_this->clipboard_text);
slouken@4495
  2109
        _this->clipboard_text = NULL;
slouken@4495
  2110
    }
slouken@2753
  2111
    _this->free(_this);
slouken@2753
  2112
    _this = NULL;
slouken@0
  2113
}
slouken@0
  2114
slouken@1895
  2115
int
slouken@1895
  2116
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2117
{
slouken@2753
  2118
    int retval;
slouken@0
  2119
slouken@2753
  2120
    if (!_this) {
slouken@2753
  2121
        SDL_UninitializedVideo();
slouken@2753
  2122
        return -1;
slouken@2753
  2123
    }
slouken@3057
  2124
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2125
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2126
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2127
            return -1;
slouken@3057
  2128
        }
slouken@3057
  2129
        retval = 0;
slouken@3057
  2130
    } else {
slouken@3057
  2131
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2132
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2133
            return -1;
slouken@3057
  2134
        }
slouken@2753
  2135
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2136
    }
slouken@3057
  2137
    if (retval == 0) {
slouken@3057
  2138
        ++_this->gl_config.driver_loaded;
slouken@2753
  2139
    }
slouken@2753
  2140
    return (retval);
slouken@0
  2141
}
slouken@0
  2142
slouken@2753
  2143
void *
slouken@1895
  2144
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2145
{
slouken@2753
  2146
    void *func;
slouken@0
  2147
slouken@2753
  2148
    if (!_this) {
slouken@2753
  2149
        SDL_UninitializedVideo();
slouken@2753
  2150
        return NULL;
slouken@2753
  2151
    }
slouken@2753
  2152
    func = NULL;
slouken@2753
  2153
    if (_this->GL_GetProcAddress) {
slouken@2753
  2154
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2155
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2156
        } else {
slouken@2753
  2157
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2158
        }
slouken@2753
  2159
    } else {
slouken@2753
  2160
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2161
    }
slouken@2753
  2162
    return func;
slouken@0
  2163
}
slouken@0
  2164
slouken@3057
  2165
void
slouken@3057
  2166
SDL_GL_UnloadLibrary(void)
slouken@3057
  2167
{
slouken@3057
  2168
    if (!_this) {
slouken@3057
  2169
        SDL_UninitializedVideo();
slouken@3057
  2170
        return;
slouken@3057
  2171
    }
slouken@3057
  2172
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2173
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2174
            return;
slouken@3057
  2175
        }
slouken@3057
  2176
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2177
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2178
        }
slouken@3057
  2179
    }
slouken@3057
  2180
}
slouken@3057
  2181
slouken@1926
  2182
SDL_bool
slouken@1926
  2183
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2184
{
slouken@5209
  2185
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2186
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2187
    const char *extensions;
slouken@2753
  2188
    const char *start;
slouken@2753
  2189
    const char *where, *terminator;
slouken@1926
  2190
slouken@2753
  2191
    /* Extension names should not have spaces. */
slouken@2753
  2192
    where = SDL_strchr(extension, ' ');
slouken@2753
  2193
    if (where || *extension == '\0') {
slouken@2753
  2194
        return SDL_FALSE;
slouken@2753
  2195
    }
slouken@2753
  2196
    /* See if there's an environment variable override */
slouken@2753
  2197
    start = SDL_getenv(extension);
slouken@2753
  2198
    if (start && *start == '0') {
slouken@2753
  2199
        return SDL_FALSE;
slouken@2753
  2200
    }
slouken@2753
  2201
    /* Lookup the available extensions */
slouken@2753
  2202
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2203
    if (glGetStringFunc) {
slouken@2753
  2204
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2205
    } else {
slouken@2753
  2206
        extensions = NULL;
slouken@2753
  2207
    }
slouken@2753
  2208
    if (!extensions) {
slouken@2753
  2209
        return SDL_FALSE;
slouken@2753
  2210
    }
slouken@2753
  2211
    /*
slouken@2753
  2212
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2213
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2214
     */
slouken@1926
  2215
slouken@2753
  2216
    start = extensions;
slouken@1926
  2217
slouken@2753
  2218
    for (;;) {
slouken@2753
  2219
        where = SDL_strstr(start, extension);
slouken@2753
  2220
        if (!where)
slouken@2753
  2221
            break;
slouken@1926
  2222
slouken@2753
  2223
        terminator = where + SDL_strlen(extension);
slouken@2753
  2224
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2225
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2226
                return SDL_TRUE;
slouken@1926
  2227
slouken@2753
  2228
        start = terminator;
slouken@2753
  2229
    }
slouken@2753
  2230
    return SDL_FALSE;
slouken@1926
  2231
#else
slouken@2753
  2232
    return SDL_FALSE;
slouken@1926
  2233
#endif
slouken@1926
  2234
}
slouken@1926
  2235
slouken@1895
  2236
int
slouken@1895
  2237
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2238
{
slouken@5209
  2239
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2240
    int retval;
slouken@0
  2241
slouken@2753
  2242
    if (!_this) {
slouken@2753
  2243
        SDL_UninitializedVideo();
slouken@2753
  2244
        return -1;
slouken@2753
  2245
    }
slouken@2753
  2246
    retval = 0;
slouken@2753
  2247
    switch (attr) {
slouken@2753
  2248
    case SDL_GL_RED_SIZE:
slouken@2753
  2249
        _this->gl_config.red_size = value;
slouken@2753
  2250
        break;
slouken@2753
  2251
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2252
        _this->gl_config.green_size = value;
slouken@2753
  2253
        break;
slouken@2753
  2254
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2255
        _this->gl_config.blue_size = value;
slouken@2753
  2256
        break;
slouken@2753
  2257
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2258
        _this->gl_config.alpha_size = value;
slouken@2753
  2259
        break;
slouken@2753
  2260
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2261
        _this->gl_config.double_buffer = value;
slouken@2753
  2262
        break;
slouken@2753
  2263
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2264
        _this->gl_config.buffer_size = value;
slouken@2753
  2265
        break;
slouken@2753
  2266
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2267
        _this->gl_config.depth_size = value;
slouken@2753
  2268
        break;
slouken@2753
  2269
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2270
        _this->gl_config.stencil_size = value;
slouken@2753
  2271
        break;
slouken@2753
  2272
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2273
        _this->gl_config.accum_red_size = value;
slouken@2753
  2274
        break;
slouken@2753
  2275
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2276
        _this->gl_config.accum_green_size = value;
slouken@2753
  2277
        break;
slouken@2753
  2278
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2279
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2280
        break;
slouken@2753
  2281
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2282
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2283
        break;
slouken@2753
  2284
    case SDL_GL_STEREO:
slouken@2753
  2285
        _this->gl_config.stereo = value;
slouken@2753
  2286
        break;
slouken@2753
  2287
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2288
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2289
        break;
slouken@2753
  2290
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2291
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2292
        break;
slouken@2753
  2293
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2294
        _this->gl_config.accelerated = value;
slouken@2753
  2295
        break;
slouken@2753
  2296
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2297
        _this->gl_config.retained_backing = value;
slouken@2753
  2298
        break;
slouken@3100
  2299
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2300
        _this->gl_config.major_version = value;
slouken@3100
  2301
        break;
slouken@3100
  2302
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2303
        _this->gl_config.minor_version = value;
slouken@3100
  2304
        break;
slouken@6296
  2305
    case SDL_GL_CONTEXT_FLAGS:
slouken@6296
  2306
        _this->gl_config.flags = value;
slouken@6296
  2307
        break;
slouken@6296
  2308
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6296
  2309
        _this->gl_config.profile_mask = value;
slouken@6296
  2310
        break;
slouken@2753
  2311
    default:
slouken@2753
  2312
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2313
        retval = -1;
slouken@2753
  2314
        break;
slouken@2753
  2315
    }
slouken@2753
  2316
    return retval;
slouken@1936
  2317
#else
slouken@2753
  2318
    SDL_Unsupported();
slouken@2753
  2319
    return -1;
slouken@2753
  2320
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2321
}
slouken@0
  2322
slouken@1895
  2323
int
slouken@1936
  2324
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2325
{
slouken@5209
  2326
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2327
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2328
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2329
    GLenum attrib = 0;
slouken@3099
  2330
    GLenum error = 0;
slouken@1912
  2331
slouken@2753
  2332
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2333
    if (!glGetIntegervFunc) {
slouken@2753
  2334
        return -1;
slouken@2753
  2335
    }
slouken@3099
  2336
slouken@3099
  2337
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2338
    if (!glGetErrorFunc) {
slouken@3099
  2339
        return -1;
slouken@3099
  2340
    }
slouken@3099
  2341
slouken@3099
  2342
    /* Clear value in any case */
slouken@3139
  2343
    *value = 0;
slouken@3099
  2344
slouken@2753
  2345
    switch (attr) {
slouken@2753
  2346
    case SDL_GL_RED_SIZE:
slouken@2753
  2347
        attrib = GL_RED_BITS;
slouken@2753
  2348
        break;
slouken@2753
  2349
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2350
        attrib = GL_BLUE_BITS;
slouken@2753
  2351
        break;
slouken@2753
  2352
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2353
        attrib = GL_GREEN_BITS;
slouken@2753
  2354
        break;
slouken@2753
  2355
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2356
        attrib = GL_ALPHA_BITS;
slouken@2753
  2357
        break;
slouken@2753
  2358
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2359
#if SDL_VIDEO_OPENGL
slouken@2753
  2360
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2361
        break;
hfutrell@2745
  2362
#else
slouken@3099
  2363
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2364
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2365
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2366
        *value = _this->gl_config.double_buffer;
slouken@2753
  2367
        return 0;
hfutrell@2745
  2368
#endif
slouken@2753
  2369
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2370
        attrib = GL_DEPTH_BITS;
slouken@2753
  2371
        break;
slouken@2753
  2372
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2373
        attrib = GL_STENCIL_BITS;
slouken@2753
  2374
        break;
slouken@5209
  2375
#if SDL_VIDEO_OPENGL
slouken@2753
  2376
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2377
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2378
        break;
slouken@2753
  2379
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2380
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2381
        break;
slouken@2753
  2382
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2383
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2384
        break;
slouken@2753
  2385
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2386
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2387
        break;
slouken@2753
  2388
    case SDL_GL_STEREO:
slouken@2753
  2389
        attrib = GL_STEREO;
slouken@2753
  2390
        break;
hfutrell@2745
  2391
#else
slouken@2753
  2392
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2393
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2394
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2395
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2396
    case SDL_GL_STEREO:
slouken@2753
  2397
        /* none of these are supported in OpenGL ES */
slouken@2753
  2398
        *value = 0;
slouken@2753
  2399
        return 0;
hfutrell@2745
  2400
#endif
slouken@2753
  2401
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2402
#if SDL_VIDEO_OPENGL
slouken@2753
  2403
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2404
#else
slouken@2753
  2405
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2406
#endif
slouken@2753
  2407
        break;
slouken@2753
  2408
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2409
#if SDL_VIDEO_OPENGL
slouken@2753
  2410
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2411
#else
slouken@2753
  2412
        attrib = GL_SAMPLES;
hfutrell@2745
  2413
#endif
slouken@2753
  2414
        break;
slouken@2753
  2415
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2416
        {
slouken@2753
  2417
            GLint bits = 0;
slouken@2753
  2418
            GLint component;
slouken@1936
  2419
slouken@2753
  2420
            /*
slouken@2753
  2421
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2422
             * for this!
slouken@2753
  2423
             */
slouken@2753
  2424
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2425
            bits += component;
slouken@2753
  2426
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2427
            bits += component;
slouken@2753
  2428
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2429
            bits += component;
slouken@2753
  2430
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2431
            bits += component;
slouken@1936
  2432
slouken@2753
  2433
            *value = bits;
slouken@2753
  2434
            return 0;
slouken@2753
  2435
        }
slouken@2753
  2436
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2437
        {
slouken@2753
  2438
            /* FIXME: How do we get this information? */
slouken@3571
  2439
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2440
            return 0;
slouken@2753
  2441
        }
slouken@5210
  2442
    case SDL_GL_RETAINED_BACKING:
slouken@5210
  2443
        {
slouken@5210
  2444
            *value = _this->gl_config.retained_backing;
slouken@5210
  2445
            return 0;
slouken@5210
  2446
        }
slouken@5210
  2447
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@5210
  2448
        {
slouken@5210
  2449
            *value = _this->gl_config.major_version;
slouken@5210
  2450
            return 0;
slouken@5210
  2451
        }
slouken@5210
  2452
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@5210
  2453
        {
slouken@5210
  2454
            *value = _this->gl_config.minor_version;
slouken@5210
  2455
            return 0;
slouken@5210
  2456
        }
slouken@6296
  2457
    case SDL_GL_CONTEXT_FLAGS:
slouken@6296
  2458
        {
slouken@6296
  2459
            *value = _this->gl_config.flags;
slouken@6296
  2460
            return 0;
slouken@6296
  2461
        }
slouken@6296
  2462
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6296
  2463
        {
slouken@6296
  2464
            *value = _this->gl_config.profile_mask;
slouken@6296
  2465
            return 0;
slouken@6296
  2466
        }
slouken@2753
  2467
    default:
slouken@2753
  2468
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2469
        return -1;
slouken@2753
  2470
    }
slouken@0
  2471
slouken@2753
  2472
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@3139
  2473
    error = glGetErrorFunc();
slouken@3139
  2474
    if (error != GL_NO_ERROR) {
slouken@3139
  2475
        switch (error) {
slouken@3139
  2476
        case GL_INVALID_ENUM:
slouken@3139
  2477
            {
slouken@3139
  2478
                SDL_SetError("OpenGL error: GL_INVALID_ENUM");
slouken@3139
  2479
            }
slouken@3139
  2480
            break;
slouken@3139
  2481
        case GL_INVALID_VALUE:
slouken@3139
  2482
            {
slouken@3139
  2483
                SDL_SetError("OpenGL error: GL_INVALID_VALUE");
slouken@3139
  2484
            }
slouken@3139
  2485
            break;
slouken@3139
  2486
        default:
slouken@3139
  2487
            {
slouken@3139
  2488
                SDL_SetError("OpenGL error: %08X", error);
slouken@3139
  2489
            }
slouken@3139
  2490
            break;
slouken@3139
  2491
        }
slouken@3139
  2492
        return -1;
slouken@3099
  2493
    }
slouken@2753
  2494
    return 0;
slouken@1936
  2495
#else
slouken@2753
  2496
    SDL_Unsupported();
slouken@2753
  2497
    return -1;
slouken@2753
  2498
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2499
}
slouken@0
  2500
slouken@1912
  2501
SDL_GLContext
slouken@3685
  2502
SDL_GL_CreateContext(SDL_Window * window)
slouken@1912
  2503
{
icculus@5570
  2504
    SDL_GLContext ctx = NULL;
slouken@3695
  2505
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  2506
slouken@2753
  2507
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2508
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2509
        return NULL;
slouken@2753
  2510
    }
icculus@5570
  2511
icculus@5570
  2512
    ctx = _this->GL_CreateContext(_this, window);
icculus@5570
  2513
icculus@5570
  2514
    /* Creating a context is assumed to make it current in the SDL driver. */
icculus@5570
  2515
    _this->current_glwin = window;
icculus@5570
  2516
    _this->current_glctx = ctx;
icculus@5570
  2517
icculus@5570
  2518
    return ctx;
slouken@1912
  2519
}
slouken@1912
  2520
slouken@1912
  2521
int
icculus@5563
  2522
SDL_GL_MakeCurrent(SDL_Window * window, SDL_GLContext ctx)
slouken@1912
  2523
{
icculus@5563
  2524
    int retval;
icculus@5563
  2525
slouken@3695
  2526
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  2527
slouken@3695
  2528
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2529
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2530
        return -1;
slouken@2753
  2531
    }
icculus@5563
  2532
    if (!ctx) {
slouken@2753
  2533
        window = NULL;
slouken@2753
  2534
    }
icculus@5563
  2535
icculus@5563
  2536
    if ((window == _this->current_glwin) && (ctx == _this->current_glctx)) {
icculus@5563
  2537
        retval = 0;  /* we're already current. */
icculus@5563
  2538
    } else {
icculus@5563
  2539
        retval = _this->GL_MakeCurrent(_this, window, ctx);
icculus@5563
  2540
        if (retval == 0) {
icculus@5563
  2541
            _this->current_glwin = window;
icculus@5563
  2542
            _this->current_glctx = ctx;
icculus@5563
  2543
        }
icculus@5563
  2544
    }
icculus@5563
  2545
icculus@5563
  2546
    return retval;
slouken@1912
  2547
}
slouken@1912
  2548
slouken@1912
  2549
int
slouken@1912
  2550
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2551
{
slouken@2753
  2552
    if (!_this) {
slouken@2753
  2553
        SDL_UninitializedVideo();
slouken@2753
  2554
        return -1;
icculus@5571
  2555
    } else if (_this->current_glctx == NULL) {
icculus@5571
  2556
        SDL_SetError("No OpenGL context has been made current");
icculus@5571
  2557
        return -1;
icculus@5571
  2558
    } else if (_this->GL_SetSwapInterval) {
slouken@2753
  2559
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2560
    } else {
slouken@2753
  2561
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2562
        return -1;
slouken@2753
  2563
    }
slouken@1912
  2564
}
slouken@1912
  2565
slouken@1912
  2566
int
slouken@1912
  2567
SDL_GL_GetSwapInterval(void)
slouken@1912
  2568
{
slouken@2753
  2569
    if (!_this) {
slouken@2753
  2570
        SDL_UninitializedVideo();
slouken@2753
  2571
        return -1;
icculus@5571
  2572
    } else if (_this->current_glctx == NULL) {
icculus@5571
  2573
        SDL_SetError("No OpenGL context has been made current");
icculus@5571
  2574
        return -1;
icculus@5571
  2575
    } else if (_this->GL_GetSwapInterval) {
slouken@2753
  2576
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2577
    } else {
slouken@2753
  2578
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2579
        return -1;
slouken@2753
  2580
    }
slouken@1912
  2581
}
slouken@1912
  2582
slouken@1895
  2583
void
slouken@3685
  2584
SDL_GL_SwapWindow(SDL_Window * window)
slouken@0
  2585
{
slouken@3695
  2586
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  2587
slouken@2753
  2588
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2589
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2590
        return;
slouken@2753
  2591
    }
slouken@2753
  2592
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2593
}
slouken@1912
  2594
slouken@1912
  2595
void
slouken@1912
  2596
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2597
{
slouken@4526
  2598
    if (!_this || !_this->gl_data || !context) {
slouken@2753
  2599
        return;
slouken@2753
  2600
    }
slouken@2753
  2601
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2602
    _this->GL_DeleteContext(_this, context);
slouken@0
  2603
}
slouken@0
  2604
slouken@1895
  2605
#if 0                           // FIXME
hfutrell@2744
  2606
/*
hfutrell@2744
  2607
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2608
 * & 2 for alpha channel.
hfutrell@2744
  2609
 */
slouken@1895
  2610
static void
slouken@1895
  2611
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2612
{
slouken@2753
  2613
    int x, y;
slouken@2753
  2614
    Uint32 colorkey;
slouken@0
  2615
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2616
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2617
slouken@2753
  2618
    colorkey = icon->format->colorkey;
slouken@2753
  2619
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2620
    case 1:
slouken@2753
  2621
        {
slouken@2753
  2622
            Uint8 *pixels;
slouken@2753
  2623
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2624
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2625
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2626
                    if (*pixels++ == colorkey) {
slouken@2753
  2627
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2628
                    }
slouken@2753
  2629
                }
slouken@2753
  2630
            }
slouken@2753
  2631
        }
slouken@2753
  2632
        break;
slouken@0
  2633
slouken@2753
  2634
    case 2:
slouken@2753
  2635
        {
slouken@2753
  2636
            Uint16 *pixels;
slouken@2753
  2637
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2638
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2639
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2640
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2641
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2642
                    } else if ((flags & 2)
slouken@2753
  2643
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2644
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2645
                    }
slouken@2753
  2646
                    pixels++;
slouken@2753
  2647
                }
slouken@2753
  2648
            }
slouken@2753
  2649
        }
slouken@2753
  2650
        break;
slouken@0
  2651
slouken@2753
  2652
    case 4:
slouken@2753
  2653
        {
slouken@2753
  2654
            Uint32 *pixels;
slouken@2753
  2655
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2656
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2657
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2658
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2659
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2660
                    } else if ((flags & 2)
slouken@2753
  2661
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2662
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2663
                    }
slouken@2753
  2664
                    pixels++;
slouken@2753
  2665
                }
slouken@2753
  2666
            }
slouken@2753
  2667
        }
slouken@2753
  2668
        break;
slouken@2753
  2669
    }
slouken@0
  2670
}
slouken@0
  2671
slouken@0
  2672
/*
slouken@0
  2673
 * Sets the window manager icon for the display window.
slouken@0
  2674
 */
slouken@1895
  2675
void
slouken@1895
  2676
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2677
{
slouken@2753
  2678
    if (icon && _this->SetIcon) {
slouken@2753
  2679
        /* Generate a mask if necessary, and create the icon! */
slouken@2753
  2680
        if (mask == NULL) {
slouken@2753
  2681
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@2753
  2682
            int flags = 0;
slouken@2753
  2683
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@2753
  2684
            if (mask == NULL) {
slouken@2753
  2685
                return;