src/video/SDL_video.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 01 Aug 2012 20:29:36 -0400
changeset 6382 64d54101773a
parent 6370 93187f7f7d5d
child 6392 fa7eb111f994
permissions -rwxr-xr-x
Add support for (GLX|WGL)_EXT_swap_control_tear.

This required a small public API change: SDL_GL_SetSwapInterval() now accepts
negative values, and SDL_GL_GetSwapInterval() doesn't report errors anymore
(if it can't work, it'll return zero as a reasonable default).

If you need to test for errors, such as a lack of swap_control_tear support,
check the results of SDL_GL_SetSwapInterval() when you set your desired
value.
<
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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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   318
    SDL_WindowTextureData *data;
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   319
    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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   333
        if (SDL_UpdateTexture(data->texture, &rect, src, data->pitch) < 0) {
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            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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static int
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cmpmodes(const void *A, const void *B)
slouken@1895
   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@6370
   496
    _this->gl_config.use_egl = 0;
slouken@5217
   497
#elif SDL_VIDEO_OPENGL_ES
slouken@5217
   498
    _this->gl_config.major_version = 1;
slouken@5217
   499
    _this->gl_config.minor_version = 1;
slouken@6370
   500
    _this->gl_config.use_egl = 1;
slouken@5209
   501
#elif SDL_VIDEO_OPENGL_ES2
slouken@5209
   502
    _this->gl_config.major_version = 2;
slouken@5209
   503
    _this->gl_config.minor_version = 0;
slouken@6370
   504
    _this->gl_config.use_egl = 1;
slouken@5209
   505
#endif
slouken@6296
   506
    _this->gl_config.flags = 0;
slouken@6296
   507
    _this->gl_config.profile_mask = 0;
slouken@0
   508
slouken@2753
   509
    /* Initialize the video subsystem */
slouken@2753
   510
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   511
        SDL_VideoQuit();
slouken@2753
   512
        return -1;
slouken@2753
   513
    }
slouken@5166
   514
slouken@2753
   515
    /* Make sure some displays were added */
slouken@2753
   516
    if (_this->num_displays == 0) {
slouken@2753
   517
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   518
        SDL_VideoQuit();
slouken@2753
   519
        return (-1);
slouken@2753
   520
    }
slouken@0
   521
slouken@5190
   522
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   523
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   524
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   525
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   526
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   527
    }
slouken@5166
   528
slouken@2753
   529
    /* We're ready to go! */
slouken@2753
   530
    return 0;
slouken@0
   531
}
slouken@0
   532
slouken@2753
   533
const char *
slouken@1895
   534
SDL_GetCurrentVideoDriver()
slouken@0
   535
{
slouken@2753
   536
    if (!_this) {
slouken@2753
   537
        SDL_UninitializedVideo();
slouken@2753
   538
        return NULL;
slouken@2753
   539
    }
slouken@2753
   540
    return _this->name;
slouken@0
   541
}
slouken@0
   542
slouken@1895
   543
SDL_VideoDevice *
slouken@4472
   544
SDL_GetVideoDevice(void)
slouken@0
   545
{
slouken@2753
   546
    return _this;
slouken@0
   547
}
slouken@0
   548
slouken@1895
   549
int
slouken@1895
   550
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   551
{
slouken@2753
   552
    SDL_VideoDisplay display;
slouken@0
   553
slouken@2753
   554
    SDL_zero(display);
slouken@2753
   555
    if (desktop_mode) {
slouken@2753
   556
        display.desktop_mode = *desktop_mode;
slouken@2753
   557
    }
slouken@2753
   558
    display.current_mode = display.desktop_mode;
slouken@1895
   559
slouken@2753
   560
    return SDL_AddVideoDisplay(&display);
slouken@0
   561
}
slouken@0
   562
slouken@1895
   563
int
slouken@1895
   564
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   565
{
slouken@2753
   566
    SDL_VideoDisplay *displays;
slouken@2753
   567
    int index = -1;
slouken@0
   568
slouken@2753
   569
    displays =
slouken@2753
   570
        SDL_realloc(_this->displays,
slouken@2753
   571
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   572
    if (displays) {
slouken@2753
   573
        index = _this->num_displays++;
slouken@2753
   574
        displays[index] = *display;
slouken@2753
   575
        displays[index].device = _this;
slouken@2753
   576
        _this->displays = displays;
slouken@2753
   577
    } else {
slouken@2753
   578
        SDL_OutOfMemory();
slouken@2753
   579
    }
slouken@2753
   580
    return index;
slouken@0
   581
}
slouken@0
   582
slouken@1895
   583
int
slouken@1895
   584
SDL_GetNumVideoDisplays(void)
slouken@0
   585
{
slouken@2753
   586
    if (!_this) {
slouken@2753
   587
        SDL_UninitializedVideo();
slouken@2753
   588
        return 0;
slouken@2753
   589
    }
slouken@2753
   590
    return _this->num_displays;
slouken@0
   591
}
slouken@0
   592
slouken@6044
   593
static int
slouken@5380
   594
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   595
{
slouken@5380
   596
    int displayIndex;
slouken@5380
   597
slouken@5380
   598
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   599
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   600
            return displayIndex;
slouken@5380
   601
        }
slouken@5380
   602
    }
slouken@5380
   603
slouken@5380
   604
    /* Couldn't find the display, just use index 0 */
slouken@5380
   605
    return 0;
slouken@5380
   606
}
slouken@5380
   607
slouken@5380
   608
int
slouken@5244
   609
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   610
{
slouken@5244
   611
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   612
slouken@3528
   613
    if (rect) {
slouken@5244
   614
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   615
slouken@3528
   616
        if (_this->GetDisplayBounds) {
slouken@5249
   617
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   618
                return 0;
slouken@3528
   619
            }
slouken@5249
   620
        }
slouken@5249
   621
slouken@5249
   622
        /* Assume that the displays are left to right */
slouken@5249
   623
        if (displayIndex == 0) {
slouken@5249
   624
            rect->x = 0;
slouken@5249
   625
            rect->y = 0;
slouken@3528
   626
        } else {
slouken@5249
   627
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   628
            rect->x += rect->w;
slouken@3528
   629
        }
slouken@5249
   630
        rect->w = display->desktop_mode.w;
slouken@5249
   631
        rect->h = display->desktop_mode.h;
slouken@3528
   632
    }
slouken@3528
   633
    return 0;
slouken@3528
   634
}
slouken@3528
   635
slouken@1895
   636
SDL_bool
slouken@3500
   637
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   638
{
slouken@2753
   639
    SDL_DisplayMode *modes;
slouken@2753
   640
    int i, nmodes;
slouken@0
   641
slouken@2753
   642
    /* Make sure we don't already have the mode in the list */
slouken@2753
   643
    modes = display->display_modes;
slouken@2753
   644
    nmodes = display->num_display_modes;
slouken@2753
   645
    for (i = nmodes; i--;) {
slouken@2753
   646
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   647
            return SDL_FALSE;
slouken@2753
   648
        }
slouken@2753
   649
    }
slouken@1895
   650
slouken@2753
   651
    /* Go ahead and add the new mode */
slouken@2753
   652
    if (nmodes == display->max_display_modes) {
slouken@2753
   653
        modes =
slouken@2753
   654
            SDL_realloc(modes,
slouken@2753
   655
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   656
        if (!modes) {
slouken@2753
   657
            return SDL_FALSE;
slouken@2753
   658
        }
slouken@2753
   659
        display->display_modes = modes;
slouken@2753
   660
        display->max_display_modes += 32;
slouken@2753
   661
    }
slouken@2753
   662
    modes[nmodes] = *mode;
slouken@2753
   663
    display->num_display_modes++;
slouken@1895
   664
lestat@3178
   665
    /* Re-sort video modes */
lestat@3178
   666
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   667
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   668
slouken@2753
   669
    return SDL_TRUE;
slouken@0
   670
}
slouken@0
   671
slouken@5244
   672
static int
slouken@3500
   673
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   674
{
slouken@3500
   675
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   676
        _this->GetDisplayModes(_this, display);
slouken@3500
   677
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   678
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   679
    }
slouken@3500
   680
    return display->num_display_modes;
slouken@3500
   681
}
slouken@3500
   682
slouken@3500
   683
int
slouken@5244
   684
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   685
{
slouken@5244
   686
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   687
slouken@5244
   688
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   689
}
slouken@3500
   690
slouken@3500
   691
int
slouken@5244
   692
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   693
{
slouken@5244
   694
    SDL_VideoDisplay *display;
slouken@5244
   695
slouken@5244
   696
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   697
slouken@5244
   698
    display = &_this->displays[displayIndex];
slouken@3500
   699
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@3500
   700
        SDL_SetError("index must be in the range of 0 - %d",
slouken@3500
   701
                     SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   702
        return -1;
slouken@3500
   703
    }
slouken@3500
   704
    if (mode) {
slouken@3500
   705
        *mode = display->display_modes[index];
slouken@2753
   706
    }
slouken@2753
   707
    return 0;
slouken@0
   708
}
slouken@0
   709
slouken@1967
   710
int
slouken@5244
   711
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   712
{
slouken@5244
   713
    SDL_VideoDisplay *display;
slouken@3500
   714
slouken@5244
   715
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   716
slouken@5244
   717
    display = &_this->displays[displayIndex];
slouken@2753
   718
    if (mode) {
slouken@3500
   719
        *mode = display->desktop_mode;
slouken@2753
   720
    }
slouken@2753
   721
    return 0;
slouken@0
   722
}
slouken@0
   723
slouken@1967
   724
int
slouken@5244
   725
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   726
{
slouken@5244
   727
    SDL_VideoDisplay *display;
slouken@3500
   728
slouken@5244
   729
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   730
slouken@5244
   731
    display = &_this->displays[displayIndex];
slouken@2753
   732
    if (mode) {
slouken@3500
   733
        *mode = display->current_mode;
slouken@2753
   734
    }
slouken@2753
   735
    return 0;
slouken@0
   736
}
slouken@0
   737
slouken@5244
   738
static SDL_DisplayMode *
slouken@3500
   739
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   740
                                    const SDL_DisplayMode * mode,
slouken@3500
   741
                                    SDL_DisplayMode * closest)
slouken@0
   742
{
slouken@2753
   743
    Uint32 target_format;
slouken@2753
   744
    int target_refresh_rate;
slouken@2753
   745
    int i;
slouken@2753
   746
    SDL_DisplayMode *current, *match;
slouken@0
   747
slouken@3500
   748
    if (!mode || !closest) {
slouken@3500
   749
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   750
        return NULL;
slouken@2753
   751
    }
slouken@3500
   752
slouken@2753
   753
    /* Default to the desktop format */
slouken@2753
   754
    if (mode->format) {
slouken@2753
   755
        target_format = mode->format;
slouken@2753
   756
    } else {
slouken@3500
   757
        target_format = display->desktop_mode.format;
slouken@2753
   758
    }
slouken@0
   759
slouken@2753
   760
    /* Default to the desktop refresh rate */
slouken@2753
   761
    if (mode->refresh_rate) {
slouken@2753
   762
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   763
    } else {
slouken@3500
   764
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   765
    }
slouken@0
   766
slouken@2753
   767
    match = NULL;
slouken@3500
   768
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   769
        current = &display->display_modes[i];
slouken@0
   770
slouken@2789
   771
        if (current->w && (current->w < mode->w)) {
slouken@2753
   772
            /* Out of sorted modes large enough here */
slouken@2753
   773
            break;
slouken@2753
   774
        }
slouken@2789
   775
        if (current->h && (current->h < mode->h)) {
slouken@2789
   776
            if (current->w && (current->w == mode->w)) {
slouken@2789
   777
                /* Out of sorted modes large enough here */
slouken@2789
   778
                break;
slouken@2789
   779
            }
slouken@2789
   780
            /* Wider, but not tall enough, due to a different
slouken@2789
   781
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   782
               modes may still follow. */
slouken@2789
   783
            continue;
slouken@2789
   784
        }
slouken@2753
   785
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   786
            match = current;
slouken@2753
   787
            continue;
slouken@2753
   788
        }
slouken@2753
   789
        if (current->format != match->format) {
slouken@2753
   790
            /* Sorted highest depth to lowest */
slouken@2753
   791
            if (current->format == target_format ||
slouken@2753
   792
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   793
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   794
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   795
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   796
                match = current;
slouken@2753
   797
            }
slouken@2753
   798
            continue;
slouken@2753
   799
        }
slouken@2753
   800
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   801
            /* Sorted highest refresh to lowest */
slouken@2753
   802
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   803
                match = current;
slouken@2753
   804
            }
slouken@2753
   805
        }
slouken@2753
   806
    }
slouken@2753
   807
    if (match) {
slouken@2753
   808
        if (match->format) {
slouken@2753
   809
            closest->format = match->format;
slouken@2753
   810
        } else {
slouken@2753
   811
            closest->format = mode->format;
slouken@2753
   812
        }
slouken@2753
   813
        if (match->w && match->h) {
slouken@2753
   814
            closest->w = match->w;
slouken@2753
   815
            closest->h = match->h;
slouken@2753
   816
        } else {
slouken@2753
   817
            closest->w = mode->w;
slouken@2753
   818
            closest->h = mode->h;
slouken@2753
   819
        }
slouken@2753
   820
        if (match->refresh_rate) {
slouken@2753
   821
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   822
        } else {
slouken@2753
   823
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   824
        }
slouken@2753
   825
        closest->driverdata = match->driverdata;
slouken@1895
   826
slouken@2753
   827
        /*
slouken@2753
   828
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   829
         * care
slouken@2753
   830
         */
slouken@2753
   831
        if (!closest->format) {
slouken@2753
   832
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   833
        }
slouken@2753
   834
        if (!closest->w) {
slouken@2753
   835
            closest->w = 640;
slouken@2753
   836
        }
slouken@2753
   837
        if (!closest->h) {
slouken@2753
   838
            closest->h = 480;
slouken@2753
   839
        }
slouken@2753
   840
        return closest;
slouken@2753
   841
    }
slouken@2753
   842
    return NULL;
slouken@0
   843
}
slouken@0
   844
slouken@3500
   845
SDL_DisplayMode *
slouken@5244
   846
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   847
                          const SDL_DisplayMode * mode,
slouken@3500
   848
                          SDL_DisplayMode * closest)
slouken@3500
   849
{
slouken@5244
   850
    SDL_VideoDisplay *display;
slouken@5244
   851
slouken@5244
   852
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   853
slouken@5244
   854
    display = &_this->displays[displayIndex];
slouken@5244
   855
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   856
}
slouken@3500
   857
slouken@6044
   858
static int
slouken@3500
   859
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   860
{
slouken@2753
   861
    SDL_DisplayMode display_mode;
slouken@2753
   862
    SDL_DisplayMode current_mode;
slouken@0
   863
slouken@3502
   864
    if (mode) {
slouken@3502
   865
        display_mode = *mode;
slouken@3502
   866
slouken@3502
   867
        /* Default to the current mode */
slouken@3502
   868
        if (!display_mode.format) {
slouken@3502
   869
            display_mode.format = display->current_mode.format;
slouken@3502
   870
        }
slouken@3502
   871
        if (!display_mode.w) {
slouken@3502
   872
            display_mode.w = display->current_mode.w;
slouken@3502
   873
        }
slouken@3502
   874
        if (!display_mode.h) {
slouken@3502
   875
            display_mode.h = display->current_mode.h;
slouken@3502
   876
        }
slouken@3502
   877
        if (!display_mode.refresh_rate) {
slouken@3502
   878
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   879
        }
slouken@3502
   880
slouken@3502
   881
        /* Get a good video mode, the closest one possible */
slouken@3502
   882
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@3502
   883
            SDL_SetError("No video mode large enough for %dx%d",
slouken@3502
   884
                         display_mode.w, display_mode.h);
slouken@3502
   885
            return -1;
slouken@3502
   886
        }
slouken@3502
   887
    } else {
slouken@3502
   888
        display_mode = display->desktop_mode;
slouken@2753
   889
    }
slouken@3500
   890
slouken@2753
   891
    /* See if there's anything left to do */
slouken@5244
   892
    current_mode = display->current_mode;
slouken@2753
   893
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   894
        return 0;
slouken@2753
   895
    }
slouken@3500
   896
slouken@2753
   897
    /* Actually change the display mode */
slouken@4978
   898
    if (!_this->SetDisplayMode) {
slouken@4978
   899
        SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   900
        return -1;
slouken@4978
   901
    }
slouken@3500
   902
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   903
        return -1;
slouken@2753
   904
    }
slouken@2753
   905
    display->current_mode = display_mode;
slouken@2753
   906
    return 0;
slouken@0
   907
}
slouken@0
   908
slouken@1895
   909
int
slouken@5373
   910
SDL_GetWindowDisplay(SDL_Window * window)
slouken@5246
   911
{
slouken@5246
   912
    int displayIndex;
slouken@5246
   913
    int i, dist;
slouken@5246
   914
    int closest = -1;
slouken@5246
   915
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   916
    SDL_Point center;
slouken@5246
   917
    SDL_Point delta;
slouken@5246
   918
    SDL_Rect rect;
slouken@5246
   919
slouken@5246
   920
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   921
slouken@5246
   922
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   923
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   924
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   925
        if (displayIndex >= _this->num_displays) {
slouken@5246
   926
            displayIndex = 0;
slouken@5246
   927
        }
slouken@5246
   928
        return displayIndex;
slouken@5246
   929
    }
slouken@5246
   930
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   931
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   932
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   933
        if (displayIndex >= _this->num_displays) {
slouken@5246
   934
            displayIndex = 0;
slouken@5246
   935
        }
slouken@5246
   936
        return displayIndex;
slouken@5246
   937
    }
slouken@5246
   938
slouken@5246
   939
    /* Find the display containing the window */
slouken@5246
   940
    center.x = window->x + window->w / 2;
slouken@5246
   941
    center.y = window->y + window->h / 2;
slouken@5246
   942
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   943
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@5246
   944
slouken@5246
   945
        SDL_GetDisplayBounds(i, &rect);
slouken@5246
   946
        if (display->fullscreen_window == window || SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   947
            return i;
slouken@5246
   948
        }
slouken@5246
   949
slouken@5246
   950
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   951
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   952
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   953
        if (dist < closest_dist) {
slouken@5246
   954
            closest = i;
slouken@5246
   955
            closest_dist = dist;
slouken@5246
   956
        }
slouken@5246
   957
    }
slouken@5246
   958
    if (closest < 0) {
slouken@5246
   959
        SDL_SetError("Couldn't find any displays");
slouken@5246
   960
    }
slouken@5246
   961
    return closest;
slouken@5246
   962
}
slouken@5246
   963
slouken@5246
   964
SDL_VideoDisplay *
slouken@5246
   965
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   966
{
slouken@5373
   967
    int displayIndex = SDL_GetWindowDisplay(window);
slouken@5373
   968
    if (displayIndex >= 0) {
slouken@5373
   969
        return &_this->displays[displayIndex];
slouken@5373
   970
    } else {
slouken@5373
   971
        return NULL;
slouken@5373
   972
    }
slouken@5246
   973
}
slouken@5246
   974
slouken@5246
   975
int
slouken@3685
   976
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
   977
{
slouken@3695
   978
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   979
slouken@2753
   980
    if (mode) {
slouken@3500
   981
        window->fullscreen_mode = *mode;
slouken@3500
   982
    } else {
slouken@3500
   983
        SDL_zero(window->fullscreen_mode);
slouken@3500
   984
    }
slouken@3526
   985
    return 0;
slouken@3500
   986
}
slouken@3500
   987
slouken@3500
   988
int
slouken@3685
   989
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
   990
{
slouken@3500
   991
    SDL_DisplayMode fullscreen_mode;
slouken@3500
   992
slouken@3695
   993
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   994
slouken@3500
   995
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
   996
    if (!fullscreen_mode.w) {
slouken@3500
   997
        fullscreen_mode.w = window->w;
slouken@3500
   998
    }
slouken@3500
   999
    if (!fullscreen_mode.h) {
slouken@3500
  1000
        fullscreen_mode.h = window->h;
slouken@3500
  1001
    }
slouken@3500
  1002
slouken@5246
  1003
    if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1004
                                             &fullscreen_mode,
slouken@3500
  1005
                                             &fullscreen_mode)) {
slouken@3500
  1006
        SDL_SetError("Couldn't find display mode match");
slouken@3500
  1007
        return -1;
slouken@3500
  1008
    }
slouken@3500
  1009
slouken@3500
  1010
    if (mode) {
slouken@3500
  1011
        *mode = fullscreen_mode;
slouken@2753
  1012
    }
slouken@2753
  1013
    return 0;
slouken@0
  1014
}
slouken@0
  1015
slouken@5154
  1016
Uint32
slouken@5154
  1017
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1018
{
slouken@5246
  1019
    SDL_VideoDisplay *display;
slouken@5246
  1020
slouken@5246
  1021
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1022
slouken@5246
  1023
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1024
    return display->current_mode.format;
slouken@5154
  1025
}
slouken@5154
  1026
slouken@3502
  1027
static void
slouken@5479
  1028
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1029
{
slouken@5479
  1030
    int x, y;
slouken@5479
  1031
slouken@5479
  1032
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1033
        SDL_GetMouseState(&x, &y);
slouken@5479
  1034
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1035
    }
slouken@5479
  1036
}
slouken@5479
  1037
slouken@5479
  1038
static void
slouken@5404
  1039
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1040
{
slouken@5246
  1041
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1042
    SDL_Window *other;
slouken@3502
  1043
slouken@5404
  1044
    if (fullscreen) {
slouken@3502
  1045
        /* Hide any other fullscreen windows */
slouken@5249
  1046
        if (display->fullscreen_window &&
slouken@5249
  1047
            display->fullscreen_window != window) {
slouken@5246
  1048
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1049
        }
slouken@3502
  1050
    }
slouken@3502
  1051
slouken@5305
  1052
    /* See if anything needs to be done now */
slouken@5404
  1053
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1054
        return;
slouken@5305
  1055
    }
slouken@5305
  1056
slouken@5249
  1057
    /* See if there are any fullscreen windows */
slouken@5249
  1058
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1059
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1060
slouken@5404
  1061
        if (other == window) {
slouken@5404
  1062
            setDisplayMode = fullscreen;
slouken@5404
  1063
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1064
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1065
            setDisplayMode = SDL_TRUE;
slouken@5404
  1066
        }
slouken@5404
  1067
slouken@5404
  1068
        if (setDisplayMode) {
slouken@5249
  1069
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1070
slouken@5249
  1071
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1072
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1073
slouken@5306
  1074
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1075
                    resized = SDL_FALSE;
slouken@5249
  1076
                }
slouken@3502
  1077
slouken@3502
  1078
                SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@5249
  1079
                if (_this->SetWindowFullscreen) {
slouken@5305
  1080
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1081
                }
slouken@5249
  1082
                display->fullscreen_window = other;
slouken@5249
  1083
slouken@5306
  1084
                /* Generate a mode change event here */
slouken@5306
  1085
                if (resized) {
slouken@5306
  1086
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1087
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1088
                } else {
slouken@5306
  1089
                    SDL_OnWindowResized(other);
slouken@5306
  1090
                }
slouken@5479
  1091
slouken@5479
  1092
                SDL_RestoreMousePosition(other);
slouken@3502
  1093
                return;
slouken@3502
  1094
            }
slouken@3502
  1095
        }
slouken@3502
  1096
    }
slouken@3502
  1097
slouken@3502
  1098
    /* Nope, restore the desktop mode */
slouken@3502
  1099
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1100
slouken@5249
  1101
    if (_this->SetWindowFullscreen) {
slouken@5305
  1102
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1103
    }
slouken@3517
  1104
    display->fullscreen_window = NULL;
slouken@5306
  1105
slouken@5306
  1106
    /* Generate a mode change event here */
slouken@5306
  1107
    SDL_OnWindowResized(window);
slouken@5479
  1108
slouken@5479
  1109
    /* Restore the cursor position */
slouken@5479
  1110
    SDL_RestoreMousePosition(window);
slouken@3502
  1111
}
slouken@3502
  1112
slouken@5380
  1113
#define CREATE_FLAGS \
slouken@5380
  1114
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1115
slouken@5380
  1116
static void
slouken@5380
  1117
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1118
{
slouken@5398
  1119
    window->windowed.x = window->x;
slouken@5398
  1120
    window->windowed.y = window->y;
slouken@5398
  1121
    window->windowed.w = window->w;
slouken@5398
  1122
    window->windowed.h = window->h;
slouken@5398
  1123
slouken@5380
  1124
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1125
        SDL_MaximizeWindow(window);
slouken@5380
  1126
    }
slouken@5380
  1127
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1128
        SDL_MinimizeWindow(window);
slouken@5380
  1129
    }
slouken@5380
  1130
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@5380
  1131
        SDL_SetWindowFullscreen(window, SDL_TRUE);
slouken@5380
  1132
    }
slouken@5380
  1133
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1134
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1135
    }
slouken@5380
  1136
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1137
        SDL_ShowWindow(window);
slouken@5380
  1138
    }
slouken@5380
  1139
}
slouken@5380
  1140
slouken@3685
  1141
SDL_Window *
slouken@1895
  1142
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1143
{
slouken@3685
  1144
    SDL_Window *window;
slouken@0
  1145
slouken@2753
  1146
    if (!_this) {
slouken@3417
  1147
        /* Initialize the video system if needed */
slouken@5123
  1148
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1149
            return NULL;
slouken@3417
  1150
        }
slouken@2753
  1151
    }
slouken@5249
  1152
slouken@6266
  1153
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1154
    if (w < 1) {
slouken@6266
  1155
        w = 1;
slouken@6266
  1156
    }
slouken@6266
  1157
    if (h < 1) {
slouken@6266
  1158
        h = 1;
slouken@6266
  1159
    }
slouken@6266
  1160
slouken@5249
  1161
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1162
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1163
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1164
#endif
slouken@3057
  1165
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1166
        if (!_this->GL_CreateContext) {
slouken@3057
  1167
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1168
            return NULL;
slouken@3057
  1169
        }
slouken@3057
  1170
        SDL_GL_LoadLibrary(NULL);
slouken@2753
  1171
    }
slouken@3685
  1172
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1173
    window->magic = &_this->window_magic;
slouken@3685
  1174
    window->id = _this->next_object_id++;
slouken@3685
  1175
    window->x = x;
slouken@3685
  1176
    window->y = y;
slouken@3685
  1177
    window->w = w;
slouken@3685
  1178
    window->h = h;
slouken@5380
  1179
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1180
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1181
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1182
        int displayIndex;
slouken@5380
  1183
        SDL_Rect bounds;
slouken@5380
  1184
slouken@5380
  1185
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1186
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1187
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1188
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1189
        }
slouken@5380
  1190
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1191
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1192
        }
slouken@5380
  1193
    }
slouken@5380
  1194
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1195
    window->brightness = 1.0f;
slouken@5246
  1196
    window->next = _this->windows;
slouken@5246
  1197
    if (_this->windows) {
slouken@5246
  1198
        _this->windows->prev = window;
slouken@3693
  1199
    }
slouken@5246
  1200
    _this->windows = window;
slouken@3685
  1201
slouken@3685
  1202
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1203
        SDL_DestroyWindow(window);
slouken@3685
  1204
        return NULL;
slouken@3685
  1205
    }
slouken@0
  1206
slouken@2753
  1207
    if (title) {
slouken@3685
  1208
        SDL_SetWindowTitle(window, title);
slouken@2753
  1209
    }
slouken@5380
  1210
    SDL_FinishWindowCreation(window, flags);
slouken@6063
  1211
    
slouken@6063
  1212
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1213
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1214
slouken@3685
  1215
    return window;
slouken@1895
  1216
}
slouken@0
  1217
slouken@3685
  1218
SDL_Window *
slouken@1895
  1219
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1220
{
slouken@3685
  1221
    SDL_Window *window;
slouken@0
  1222
slouken@2753
  1223
    if (!_this) {
slouken@2753
  1224
        SDL_UninitializedVideo();
slouken@3685
  1225
        return NULL;
slouken@3685
  1226
    }
slouken@3685
  1227
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1228
    window->magic = &_this->window_magic;
slouken@3685
  1229
    window->id = _this->next_object_id++;
slouken@3685
  1230
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1231
    window->brightness = 1.0f;
slouken@5246
  1232
    window->next = _this->windows;
slouken@5246
  1233
    if (_this->windows) {
slouken@5246
  1234
        _this->windows->prev = window;
slouken@3693
  1235
    }
slouken@5246
  1236
    _this->windows = window;
slouken@1895
  1237
slouken@2753
  1238
    if (!_this->CreateWindowFrom ||
slouken@3685
  1239
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1240
        SDL_DestroyWindow(window);
slouken@3685
  1241
        return NULL;
slouken@3685
  1242
    }
slouken@3685
  1243
    return window;
slouken@1895
  1244
}
slouken@1895
  1245
slouken@1924
  1246
int
slouken@1928
  1247
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1248
{
slouken@2753
  1249
    char *title = window->title;
slouken@1956
  1250
slouken@2753
  1251
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
  1252
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1253
        return -1;
slouken@2753
  1254
    }
slouken@3057
  1255
slouken@3057
  1256
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1257
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1258
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1259
    } else {
slouken@3057
  1260
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1261
    }
slouken@3057
  1262
slouken@5249
  1263
    /* Restore video mode, etc. */
slouken@5305
  1264
    SDL_HideWindow(window);
slouken@5249
  1265
slouken@5249
  1266
    /* Tear down the old native window */
slouken@5249
  1267
    if (window->surface) {
slouken@5288
  1268
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1269
        SDL_FreeSurface(window->surface);
slouken@5249
  1270
    }
slouken@5249
  1271
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1272
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1273
    }
slouken@3057
  1274
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1275
        _this->DestroyWindow(_this, window);
slouken@2753
  1276
    }
slouken@3057
  1277
slouken@5249
  1278
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1279
        if (flags & SDL_WINDOW_OPENGL) {
slouken@5249
  1280
            SDL_GL_LoadLibrary(NULL);
slouken@5249
  1281
        } else {
slouken@5249
  1282
            SDL_GL_UnloadLibrary();
slouken@5249
  1283
        }
slouken@5249
  1284
    }
slouken@5249
  1285
slouken@2753
  1286
    window->title = NULL;
slouken@5380
  1287
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1288
slouken@3057
  1289
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1290
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1291
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1292
                SDL_GL_UnloadLibrary();
slouken@3057
  1293
            }
slouken@3057
  1294
            return -1;
slouken@3057
  1295
        }
slouken@2753
  1296
    }
slouken@3057
  1297
slouken@2753
  1298
    if (title) {
slouken@3685
  1299
        SDL_SetWindowTitle(window, title);
slouken@2753
  1300
        SDL_free(title);
slouken@2753
  1301
    }
slouken@5380
  1302
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1303
slouken@2753
  1304
    return 0;
slouken@1924
  1305
}
slouken@1924
  1306
slouken@1895
  1307
Uint32
slouken@3685
  1308
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1309
{
slouken@3695
  1310
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1311
slouken@3685
  1312
    return window->id;
slouken@3685
  1313
}
slouken@3685
  1314
slouken@3685
  1315
SDL_Window *
slouken@3685
  1316
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1317
{
slouken@3685
  1318
    SDL_Window *window;
slouken@3685
  1319
slouken@3685
  1320
    if (!_this) {
slouken@3685
  1321
        return NULL;
slouken@3685
  1322
    }
slouken@5246
  1323
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1324
        if (window->id == id) {
slouken@5246
  1325
            return window;
slouken@3685
  1326
        }
slouken@3685
  1327
    }
slouken@3685
  1328
    return NULL;
slouken@3685
  1329
}
slouken@3685
  1330
slouken@3685
  1331
Uint32
slouken@3685
  1332
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1333
{
slouken@3695
  1334
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1335
slouken@2753
  1336
    return window->flags;
slouken@1895
  1337
}
slouken@1895
  1338
slouken@1895
  1339
void
slouken@3685
  1340
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1341
{
slouken@3695
  1342
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1343
slouken@3695
  1344
    if (title == window->title) {
slouken@2753
  1345
        return;
slouken@2753
  1346
    }
slouken@2753
  1347
    if (window->title) {
slouken@2753
  1348
        SDL_free(window->title);
slouken@2753
  1349
    }
slouken@4871
  1350
    if (title && *title) {
slouken@2753
  1351
        window->title = SDL_strdup(title);
slouken@2753
  1352
    } else {
slouken@2753
  1353
        window->title = NULL;
slouken@2753
  1354
    }
slouken@1956
  1355
slouken@2753
  1356
    if (_this->SetWindowTitle) {
slouken@2753
  1357
        _this->SetWindowTitle(_this, window);
slouken@2753
  1358
    }
slouken@1895
  1359
}
slouken@1895
  1360
slouken@2753
  1361
const char *
slouken@3685
  1362
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1363
{
slouken@4872
  1364
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1365
slouken@4871
  1366
    return window->title ? window->title : "";
slouken@1895
  1367
}
slouken@1895
  1368
slouken@1895
  1369
void
slouken@3685
  1370
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1371
{
slouken@3695
  1372
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1373
slouken@5375
  1374
    if (!icon) {
slouken@5375
  1375
        return;
slouken@5375
  1376
    }
slouken@5375
  1377
slouken@2967
  1378
    if (_this->SetWindowIcon) {
slouken@2967
  1379
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1380
    }
slouken@2967
  1381
}
slouken@2967
  1382
slouken@5165
  1383
void*
slouken@5165
  1384
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1385
{
slouken@5165
  1386
    SDL_WindowUserData *prev, *data;
slouken@3695
  1387
slouken@5165
  1388
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5165
  1389
slouken@5165
  1390
    /* See if the named data already exists */
slouken@5165
  1391
    prev = NULL;
slouken@5165
  1392
    for (data = window->data; data; prev = data, data = data->next) {
slouken@5165
  1393
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1394
            void *last_value = data->data;
slouken@5165
  1395
slouken@5165
  1396
            if (userdata) {
slouken@5165
  1397
                /* Set the new value */
slouken@5165
  1398
                data->data = userdata;
slouken@5165
  1399
            } else {
slouken@5165
  1400
                /* Delete this value */
slouken@5165
  1401
                if (prev) {
slouken@5165
  1402
                    prev->next = data->next;
slouken@5165
  1403
                } else {
slouken@5165
  1404
                    window->data = data->next;
slouken@5165
  1405
                }
slouken@5165
  1406
                SDL_free(data->name);
slouken@5165
  1407
                SDL_free(data);
slouken@5165
  1408
            }
slouken@5165
  1409
            return last_value;
slouken@5165
  1410
        }
slouken@5165
  1411
    }
slouken@5165
  1412
slouken@5165
  1413
    /* Add new data to the window */
slouken@5165
  1414
    if (userdata) {
slouken@5165
  1415
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1416
        data->name = SDL_strdup(name);
slouken@5165
  1417
        data->data = userdata;
slouken@5165
  1418
        data->next = window->data;
slouken@5165
  1419
        window->data = data;
slouken@5165
  1420
    }
slouken@5165
  1421
    return NULL;
slouken@1895
  1422
}
slouken@1895
  1423
slouken@2753
  1424
void *
slouken@5165
  1425
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1426
{
slouken@5165
  1427
    SDL_WindowUserData *data;
slouken@5165
  1428
slouken@3695
  1429
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1430
slouken@5165
  1431
    for (data = window->data; data; data = data->next) {
slouken@5165
  1432
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1433
            return data->data;
slouken@5165
  1434
        }
slouken@5165
  1435
    }
slouken@5165
  1436
    return NULL;
slouken@1895
  1437
}
slouken@1895
  1438
slouken@1895
  1439
void
slouken@3685
  1440
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1441
{
slouken@3695
  1442
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1443
slouken@5305
  1444
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1445
        window->x = x;
slouken@2753
  1446
    }
slouken@5305
  1447
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1448
        window->y = y;
slouken@2753
  1449
    }
slouken@5478
  1450
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1451
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5478
  1452
        int displayIndex;
slouken@5478
  1453
        SDL_Rect bounds;
slouken@5478
  1454
slouken@5478
  1455
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5478
  1456
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5478
  1457
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5478
  1458
            window->x = bounds.x + (bounds.w - window->w) / 2;
slouken@5478
  1459
        }
slouken@5478
  1460
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1461
            window->y = bounds.y + (bounds.h - window->h) / 2;
slouken@5478
  1462
        }
slouken@5478
  1463
    }
slouken@5246
  1464
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1465
        if (_this->SetWindowPosition) {
slouken@5246
  1466
            _this->SetWindowPosition(_this, window);
slouken@5246
  1467
        }
slouken@5246
  1468
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1469
    }
slouken@1895
  1470
}
slouken@1895
  1471
slouken@1895
  1472
void
slouken@3685
  1473
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1474
{
slouken@5246
  1475
    /* Clear the values */
slouken@5246
  1476
    if (x) {
slouken@5246
  1477
        *x = 0;
slouken@5246
  1478
    }
slouken@5246
  1479
    if (y) {
slouken@5246
  1480
        *y = 0;
slouken@5246
  1481
    }
slouken@5246
  1482
slouken@5246
  1483
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1484
slouken@5246
  1485
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1486
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@5246
  1487
    } else {
slouken@5242
  1488
        if (x) {
slouken@5242
  1489
            *x = window->x;
slouken@5242
  1490
        }
slouken@5242
  1491
        if (y) {
slouken@5242
  1492
            *y = window->y;
slouken@5242
  1493
        }
slouken@2753
  1494
    }
slouken@1895
  1495
}
slouken@1895
  1496
slouken@1895
  1497
void
slouken@3685
  1498
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1499
{
slouken@3695
  1500
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1501
slouken@5249
  1502
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1503
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1504
        window->w = w;
slouken@5276
  1505
        window->h = h;
slouken@5249
  1506
        if (_this->SetWindowSize) {
slouken@5249
  1507
            _this->SetWindowSize(_this, window);
slouken@5249
  1508
        }
slouken@5276
  1509
        if (window->w == w && window->h == h) {
slouken@5276
  1510
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1511
            SDL_OnWindowResized(window);
slouken@5276
  1512
        }
slouken@2753
  1513
    }
slouken@1895
  1514
}
slouken@1895
  1515
slouken@1895
  1516
void
slouken@3685
  1517
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1518
{
slouken@5246
  1519
    int dummy;
slouken@5246
  1520
slouken@5246
  1521
    if (!w) {
slouken@5246
  1522
        w = &dummy;
slouken@5246
  1523
    }
slouken@5246
  1524
    if (!h) {
slouken@5246
  1525
        h = &dummy;
slouken@5246
  1526
    }
slouken@5246
  1527
slouken@5246
  1528
    *w = 0;
slouken@5246
  1529
    *h = 0;
slouken@5246
  1530
slouken@5246
  1531
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1532
slouken@5242
  1533
    if (_this && window && window->magic == &_this->window_magic) {
slouken@2849
  1534
        if (w) {
slouken@2849
  1535
            *w = window->w;
slouken@2849
  1536
        }
slouken@2849
  1537
        if (h) {
slouken@2849
  1538
            *h = window->h;
slouken@2849
  1539
        }
slouken@2849
  1540
    } else {
slouken@2849
  1541
        if (w) {
slouken@2849
  1542
            *w = 0;
slouken@2849
  1543
        }
slouken@2849
  1544
        if (h) {
slouken@2849
  1545
            *h = 0;
slouken@2849
  1546
        }
slouken@2753
  1547
    }
slouken@1895
  1548
}
slouken@1895
  1549
slouken@1895
  1550
void
slouken@3685
  1551
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1552
{
slouken@3695
  1553
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1554
slouken@3695
  1555
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1556
        return;
slouken@2753
  1557
    }
slouken@1895
  1558
slouken@2753
  1559
    if (_this->ShowWindow) {
slouken@2753
  1560
        _this->ShowWindow(_this, window);
slouken@2753
  1561
    }
slouken@3685
  1562
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1563
}
slouken@1895
  1564
slouken@1895
  1565
void
slouken@3685
  1566
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1567
{
slouken@3695
  1568
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1569
slouken@3695
  1570
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1571
        return;
slouken@2753
  1572
    }
slouken@1895
  1573
slouken@5404
  1574
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1575
slouken@2753
  1576
    if (_this->HideWindow) {
slouken@2753
  1577
        _this->HideWindow(_this, window);
slouken@2753
  1578
    }
slouken@3685
  1579
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1580
}
slouken@1895
  1581
slouken@1895
  1582
void
slouken@3685
  1583
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1584
{
slouken@3695
  1585
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1586
slouken@3695
  1587
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1588
        return;
slouken@2753
  1589
    }
slouken@2753
  1590
    if (_this->RaiseWindow) {
slouken@2753
  1591
        _this->RaiseWindow(_this, window);
slouken@2753
  1592
    }
slouken@1895
  1593
}
slouken@1895
  1594
slouken@1895
  1595
void
slouken@3685
  1596
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1597
{
slouken@3695
  1598
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1599
slouken@3695
  1600
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1601
        return;
slouken@2753
  1602
    }
slouken@1895
  1603
slouken@2753
  1604
    if (_this->MaximizeWindow) {
slouken@2753
  1605
        _this->MaximizeWindow(_this, window);
slouken@2753
  1606
    }
slouken@1895
  1607
}
slouken@1895
  1608
slouken@1895
  1609
void
slouken@3685
  1610
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1611
{
slouken@3695
  1612
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1613
slouken@3695
  1614
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1615
        return;
slouken@2753
  1616
    }
slouken@1895
  1617
slouken@5404
  1618
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1619
slouken@2753
  1620
    if (_this->MinimizeWindow) {
slouken@2753
  1621
        _this->MinimizeWindow(_this, window);
slouken@2753
  1622
    }
slouken@1895
  1623
}
slouken@1895
  1624
slouken@1895
  1625
void
slouken@3685
  1626
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1627
{
slouken@3695
  1628
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1629
slouken@3695
  1630
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1631
        return;
slouken@2753
  1632
    }
slouken@1895
  1633
slouken@2753
  1634
    if (_this->RestoreWindow) {
slouken@2753
  1635
        _this->RestoreWindow(_this, window);
slouken@2753
  1636
    }
slouken@1895
  1637
}
slouken@1895
  1638
slouken@1895
  1639
int
slouken@5246
  1640
SDL_SetWindowFullscreen(SDL_Window * window, SDL_bool fullscreen)
slouken@1895
  1641
{
slouken@3695
  1642
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1643
slouken@5404
  1644
    if (!!fullscreen == !!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@2753
  1645
        return 0;
slouken@2753
  1646
    }
slouken@2753
  1647
    if (fullscreen) {
slouken@2753
  1648
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@2753
  1649
    } else {
slouken@2753
  1650
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@5305
  1651
    }
slouken@5404
  1652
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1653
slouken@2753
  1654
    return 0;
slouken@1895
  1655
}
slouken@1895
  1656
slouken@5166
  1657
static SDL_Surface *
slouken@5166
  1658
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1659
{
slouken@5166
  1660
    Uint32 format;
slouken@5166
  1661
    void *pixels;
slouken@5166
  1662
    int pitch;
slouken@5166
  1663
    int bpp;
slouken@5166
  1664
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1665
slouken@5166
  1666
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1667
        return NULL;
slouken@5166
  1668
    }
slouken@5166
  1669
slouken@5166
  1670
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1671
        return NULL;
slouken@5166
  1672
    }
slouken@5166
  1673
slouken@5166
  1674
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1675
        return NULL;
slouken@5166
  1676
    }
slouken@5166
  1677
slouken@5166
  1678
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1679
}
slouken@5166
  1680
slouken@5166
  1681
SDL_Surface *
slouken@5166
  1682
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1683
{
slouken@5166
  1684
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1685
slouken@5172
  1686
    if (!window->surface_valid) {
slouken@5172
  1687
        if (window->surface) {
slouken@5288
  1688
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1689
            SDL_FreeSurface(window->surface);
slouken@5172
  1690
        }
slouken@5166
  1691
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1692
        if (window->surface) {
slouken@5172
  1693
            window->surface_valid = SDL_TRUE;
slouken@5288
  1694
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1695
        }
slouken@5166
  1696
    }
slouken@5166
  1697
    return window->surface;
slouken@5166
  1698
}
slouken@5166
  1699
slouken@5166
  1700
int
slouken@5166
  1701
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1702
{
slouken@5166
  1703
    SDL_Rect full_rect;
slouken@5166
  1704
slouken@5166
  1705
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1706
slouken@5166
  1707
    full_rect.x = 0;
slouken@5166
  1708
    full_rect.y = 0;
slouken@5166
  1709
    full_rect.w = window->w;
slouken@5166
  1710
    full_rect.h = window->h;
slouken@5297
  1711
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1712
}
slouken@5166
  1713
slouken@5166
  1714
int
slouken@5297
  1715
SDL_UpdateWindowSurfaceRects(SDL_Window * window, SDL_Rect * rects,
slouken@5297
  1716
                             int numrects)
slouken@5166
  1717
{
slouken@5166
  1718
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1719
slouken@5172
  1720
    if (!window->surface_valid) {
slouken@5166
  1721
        SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1722
        return -1;
slouken@5166
  1723
    }
slouken@5166
  1724
slouken@5297
  1725
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1726
}
slouken@5166
  1727
slouken@5466
  1728
int
slouken@5466
  1729
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1730
{
slouken@5466
  1731
    Uint16 ramp[256];
slouken@5466
  1732
    int status;
slouken@5466
  1733
slouken@5466
  1734
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1735
slouken@5466
  1736
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1737
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1738
    if (status == 0) {
slouken@5466
  1739
        window->brightness = brightness;
slouken@5466
  1740
    }
slouken@5466
  1741
    return status;
slouken@5466
  1742
}
slouken@5466
  1743
slouken@5466
  1744
float
slouken@5466
  1745
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1746
{
slouken@5466
  1747
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1748
slouken@5466
  1749
    return window->brightness;
slouken@5466
  1750
}
slouken@5466
  1751
slouken@5466
  1752
int
slouken@5466
  1753
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1754
                                            const Uint16 * green,
slouken@5466
  1755
                                            const Uint16 * blue)
slouken@5466
  1756
{
slouken@5466
  1757
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1758
slouken@5466
  1759
    if (!_this->SetWindowGammaRamp) {
slouken@5466
  1760
        SDL_Unsupported();
slouken@5466
  1761
        return -1;
slouken@5466
  1762
    }
slouken@5466
  1763
slouken@5466
  1764
    if (!window->gamma) {
slouken@5466
  1765
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1766
            return -1;
slouken@5466
  1767
        }
slouken@5466
  1768
    }
slouken@5466
  1769
slouken@5466
  1770
    if (red) {
slouken@5466
  1771
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1772
    }
slouken@5466
  1773
    if (green) {
slouken@5466
  1774
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1775
    }
slouken@5466
  1776
    if (blue) {
slouken@5466
  1777
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1778
    }
slouken@5466
  1779
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1780
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1781
    } else {
slouken@5466
  1782
        return 0;
slouken@5466
  1783
    }
slouken@5466
  1784
}
slouken@5466
  1785
slouken@5466
  1786
int
slouken@5466
  1787
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1788
                                            Uint16 * green,
slouken@5466
  1789
                                            Uint16 * blue)
slouken@5466
  1790
{
slouken@5466
  1791
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1792
slouken@5466
  1793
    if (!window->gamma) {
slouken@5466
  1794
        int i;
slouken@5466
  1795
slouken@5466
  1796
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1797
        if (!window->gamma) {
slouken@5466
  1798
            SDL_OutOfMemory();
slouken@5466
  1799
            return -1;
slouken@5466
  1800
        }
slouken@5466
  1801
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1802
slouken@5466
  1803
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1804
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1805
                return -1;
slouken@5466
  1806
            }
slouken@5466
  1807
        } else {
slouken@5466
  1808
            /* Create an identity gamma ramp */
slouken@5466
  1809
            for (i = 0; i < 256; ++i) {
slouken@5466
  1810
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1811
slouken@5466
  1812
                window->gamma[0*256+i] = value;
slouken@5466
  1813
                window->gamma[1*256+i] = value;
slouken@5466
  1814
                window->gamma[2*256+i] = value;
slouken@5466
  1815
            }
slouken@5466
  1816
        }
slouken@5466
  1817
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1818
    }
slouken@5466
  1819
slouken@5466
  1820
    if (red) {
slouken@5466
  1821
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1822
    }
slouken@5466
  1823
    if (green) {
slouken@5466
  1824
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1825
    }
slouken@5466
  1826
    if (blue) {
slouken@5466
  1827
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1828
    }
slouken@5466
  1829
    return 0;
slouken@5466
  1830
}
slouken@5466
  1831
slouken@2875
  1832
static void
slouken@2876
  1833
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1834
{
slouken@2753
  1835
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1836
        _this->SetWindowGrab(_this, window);
slouken@2753
  1837
    }
slouken@1895
  1838
}
slouken@1895
  1839
slouken@5403
  1840
void
slouken@5403
  1841
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  1842
{
slouken@5403
  1843
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  1844
slouken@5404
  1845
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  1846
        return;
slouken@5403
  1847
    }
slouken@5403
  1848
    if (grabbed) {
slouken@5403
  1849
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1850
    } else {
slouken@5403
  1851
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1852
    }
slouken@5403
  1853
    SDL_UpdateWindowGrab(window);
slouken@5403
  1854
}
slouken@5403
  1855
slouken@5403
  1856
SDL_bool
slouken@3685
  1857
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  1858
{
slouken@5466
  1859
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  1860
slouken@2753
  1861
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1862
}
slouken@1895
  1863
slouken@1895
  1864
void
slouken@1895
  1865
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1866
{
slouken@6260
  1867
    INVALIDATE_GLCONTEXT();
slouken@5404
  1868
    SDL_OnWindowRestored(window);
slouken@1895
  1869
}
slouken@1895
  1870
slouken@1895
  1871
void
slouken@1895
  1872
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1873
{
slouken@6260
  1874
    INVALIDATE_GLCONTEXT();
slouken@5404
  1875
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  1876
}
slouken@1895
  1877
slouken@1895
  1878
void
slouken@5166
  1879
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  1880
{
slouken@5172
  1881
    window->surface_valid = SDL_FALSE;
slouken@5276
  1882
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  1883
}
slouken@5166
  1884
slouken@5166
  1885
void
slouken@3502
  1886
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  1887
{
slouken@5404
  1888
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  1889
}
slouken@3502
  1890
slouken@3502
  1891
void
slouken@3502
  1892
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  1893
{
slouken@3685
  1894
    SDL_RaiseWindow(window);
slouken@5404
  1895
slouken@5404
  1896
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  1897
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  1898
    }
slouken@3502
  1899
}
slouken@3502
  1900
slouken@3502
  1901
void
slouken@1895
  1902
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1903
{
slouken@5466
  1904
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1905
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1906
    }
slouken@5466
  1907
slouken@5480
  1908
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1909
        _this->SetWindowGrab) {
slouken@2753
  1910
        _this->SetWindowGrab(_this, window);
slouken@2753
  1911
    }
slouken@1895
  1912
}
slouken@1895
  1913
slouken@1895
  1914
void
slouken@1895
  1915
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1916
{
slouken@5466
  1917
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1918
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  1919
    }
slouken@3512
  1920
slouken@5480
  1921
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1922
        _this->SetWindowGrab) {
slouken@2753
  1923
        _this->SetWindowGrab(_this, window);
slouken@2753
  1924
    }
slouken@5466
  1925
slouken@5466
  1926
    /* If we're fullscreen on a single-head system and lose focus, minimize */
slouken@5466
  1927
    if ((window->flags & SDL_WINDOW_FULLSCREEN) && _this->num_displays == 1) {
slouken@5466
  1928
        SDL_MinimizeWindow(window);
slouken@5466
  1929
    }
slouken@1895
  1930
}
slouken@1895
  1931
slouken@3685
  1932
SDL_Window *
slouken@1895
  1933
SDL_GetFocusWindow(void)
slouken@1895
  1934
{
slouken@3685
  1935
    SDL_Window *window;
slouken@1895
  1936
slouken@2753
  1937
    if (!_this) {
slouken@3685
  1938
        return NULL;
slouken@3685
  1939
    }
slouken@5246
  1940
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  1941
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  1942
            return window;
slouken@2753
  1943
        }
slouken@2753
  1944
    }
slouken@3685
  1945
    return NULL;
slouken@1895
  1946
}
slouken@1895
  1947
slouken@1895
  1948
void
slouken@3685
  1949
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  1950
{
slouken@3685
  1951
    SDL_VideoDisplay *display;
slouken@3685
  1952
slouken@3695
  1953
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  1954
slouken@6214
  1955
    /* Restore video mode, etc. */
slouken@6214
  1956
    SDL_HideWindow(window);
slouken@6214
  1957
slouken@6214
  1958
    /* Make sure this window no longer has focus */
slouken@6214
  1959
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  1960
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  1961
    }
slouken@6214
  1962
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  1963
        SDL_SetMouseFocus(NULL);
slouken@6214
  1964
    }
slouken@6214
  1965
icculus@5563
  1966
    /* make no context current if this is the current context window. */
icculus@5563
  1967
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  1968
        if (_this->current_glwin == window) {
icculus@5563
  1969
            SDL_GL_MakeCurrent(NULL, NULL);
icculus@5563
  1970
        }
icculus@5563
  1971
    }
icculus@5563
  1972
slouken@5169
  1973
    if (window->surface) {
slouken@5288
  1974
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  1975
        SDL_FreeSurface(window->surface);
slouken@5169
  1976
    }
slouken@5166
  1977
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  1978
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  1979
    }
slouken@3685
  1980
    if (_this->DestroyWindow) {
slouken@3685
  1981
        _this->DestroyWindow(_this, window);
slouken@3685
  1982
    }
slouken@3685
  1983
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  1984
        SDL_GL_UnloadLibrary();
slouken@3685
  1985
    }
slouken@3685
  1986
slouken@5246
  1987
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1988
    if (display->fullscreen_window == window) {
slouken@5246
  1989
        display->fullscreen_window = NULL;
slouken@5246
  1990
    }
slouken@5246
  1991
slouken@4901
  1992
    /* Now invalidate magic */
slouken@4897
  1993
    window->magic = NULL;
slouken@4897
  1994
slouken@5165
  1995
    /* Free memory associated with the window */
slouken@5165
  1996
    if (window->title) {
slouken@5165
  1997
        SDL_free(window->title);
slouken@5165
  1998
    }
slouken@5466
  1999
    if (window->gamma) {
slouken@5466
  2000
        SDL_free(window->gamma);
slouken@5466
  2001
    }
slouken@5165
  2002
    while (window->data) {
slouken@5165
  2003
        SDL_WindowUserData *data = window->data;
slouken@5165
  2004
slouken@5165
  2005
        window->data = data->next;
slouken@5165
  2006
        SDL_free(data->name);
slouken@5165
  2007
        SDL_free(data);
slouken@5165
  2008
    }
slouken@5165
  2009
slouken@3685
  2010
    /* Unlink the window from the list */
slouken@3693
  2011
    if (window->next) {
slouken@3693
  2012
        window->next->prev = window->prev;
slouken@3693
  2013
    }
slouken@3685
  2014
    if (window->prev) {
slouken@3685
  2015
        window->prev->next = window->next;
slouken@3685
  2016
    } else {
slouken@5246
  2017
        _this->windows = window->next;
slouken@3685
  2018
    }
slouken@3685
  2019
slouken@3685
  2020
    SDL_free(window);
slouken@1895
  2021
}
slouken@1895
  2022
slouken@3025
  2023
SDL_bool
slouken@3025
  2024
SDL_IsScreenSaverEnabled()
slouken@3025
  2025
{
slouken@3025
  2026
    if (!_this) {
slouken@3025
  2027
        return SDL_TRUE;
slouken@3025
  2028
    }
slouken@3025
  2029
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2030
}
slouken@3025
  2031
slouken@3025
  2032
void
slouken@3025
  2033
SDL_EnableScreenSaver()
slouken@3025
  2034
{
slouken@3025
  2035
    if (!_this) {
slouken@3025
  2036
        return;
slouken@3025
  2037
    }
slouken@3025
  2038
    if (!_this->suspend_screensaver) {
slouken@3025
  2039
        return;
slouken@3025
  2040
    }
slouken@3025
  2041
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2042
    if (_this->SuspendScreenSaver) {
slouken@3025
  2043
        _this->SuspendScreenSaver(_this);
slouken@3025
  2044
    }
slouken@3025
  2045
}
slouken@3025
  2046
slouken@3025
  2047
void
slouken@3025
  2048
SDL_DisableScreenSaver()
slouken@3025
  2049
{
slouken@3025
  2050
    if (!_this) {
slouken@3025
  2051
        return;
slouken@3025
  2052
    }
slouken@3025
  2053
    if (_this->suspend_screensaver) {
slouken@3025
  2054
        return;
slouken@3025
  2055
    }
slouken@3025
  2056
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2057
    if (_this->SuspendScreenSaver) {
slouken@3025
  2058
        _this->SuspendScreenSaver(_this);
slouken@3025
  2059
    }
slouken@3025
  2060
}
slouken@3025
  2061
slouken@1895
  2062
void
slouken@1895
  2063
SDL_VideoQuit(void)
slouken@1895
  2064
{
slouken@2753
  2065
    int i, j;
slouken@1895
  2066
slouken@2753
  2067
    if (!_this) {
slouken@2753
  2068
        return;
slouken@2753
  2069
    }
slouken@5123
  2070
slouken@2753
  2071
    /* Halt event processing before doing anything else */
slouken@5123
  2072
    SDL_QuitQuit();
slouken@5123
  2073
    SDL_MouseQuit();
slouken@5123
  2074
    SDL_KeyboardQuit();
slouken@2753
  2075
    SDL_StopEventLoop();
slouken@5123
  2076
slouken@3029
  2077
    SDL_EnableScreenSaver();
slouken@1895
  2078
slouken@2753
  2079
    /* Clean up the system video */
slouken@5246
  2080
    while (_this->windows) {
slouken@5246
  2081
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2082
    }
slouken@2753
  2083
    _this->VideoQuit(_this);
slouken@1895
  2084
slouken@2753
  2085
    for (i = _this->num_displays; i--;) {
slouken@2753
  2086
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2087
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2088
            if (display->display_modes[j].driverdata) {
slouken@2753
  2089
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2090
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2091
            }
slouken@2753
  2092
        }
slouken@2753
  2093
        if (display->display_modes) {
slouken@2753
  2094
            SDL_free(display->display_modes);
slouken@2753
  2095
            display->display_modes = NULL;
slouken@2753
  2096
        }
slouken@2753
  2097
        if (display->desktop_mode.driverdata) {
slouken@2753
  2098
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2099
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2100
        }
slouken@2753
  2101
        if (display->driverdata) {
slouken@2753
  2102
            SDL_free(display->driverdata);
slouken@2753
  2103
            display->driverdata = NULL;
slouken@2753
  2104
        }
slouken@2753
  2105
    }
slouken@2753
  2106
    if (_this->displays) {
slouken@2753
  2107
        SDL_free(_this->displays);
slouken@2753
  2108
        _this->displays = NULL;
slouken@2753
  2109
    }
slouken@4495
  2110
    if (_this->clipboard_text) {
slouken@4495
  2111
        SDL_free(_this->clipboard_text);
slouken@4495
  2112
        _this->clipboard_text = NULL;
slouken@4495
  2113
    }
slouken@2753
  2114
    _this->free(_this);
slouken@2753
  2115
    _this = NULL;
slouken@0
  2116
}
slouken@0
  2117
slouken@1895
  2118
int
slouken@1895
  2119
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2120
{
slouken@2753
  2121
    int retval;
slouken@0
  2122
slouken@2753
  2123
    if (!_this) {
slouken@2753
  2124
        SDL_UninitializedVideo();
slouken@2753
  2125
        return -1;
slouken@2753
  2126
    }
slouken@3057
  2127
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2128
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2129
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2130
            return -1;
slouken@3057
  2131
        }
slouken@3057
  2132
        retval = 0;
slouken@3057
  2133
    } else {
slouken@3057
  2134
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2135
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2136
            return -1;
slouken@3057
  2137
        }
slouken@2753
  2138
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2139
    }
slouken@3057
  2140
    if (retval == 0) {
slouken@3057
  2141
        ++_this->gl_config.driver_loaded;
slouken@2753
  2142
    }
slouken@2753
  2143
    return (retval);
slouken@0
  2144
}
slouken@0
  2145
slouken@2753
  2146
void *
slouken@1895
  2147
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2148
{
slouken@2753
  2149
    void *func;
slouken@0
  2150
slouken@2753
  2151
    if (!_this) {
slouken@2753
  2152
        SDL_UninitializedVideo();
slouken@2753
  2153
        return NULL;
slouken@2753
  2154
    }
slouken@2753
  2155
    func = NULL;
slouken@2753
  2156
    if (_this->GL_GetProcAddress) {
slouken@2753
  2157
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2158
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2159
        } else {
slouken@2753
  2160
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2161
        }
slouken@2753
  2162
    } else {
slouken@2753
  2163
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2164
    }
slouken@2753
  2165
    return func;
slouken@0
  2166
}
slouken@0
  2167
slouken@3057
  2168
void
slouken@3057
  2169
SDL_GL_UnloadLibrary(void)
slouken@3057
  2170
{
slouken@3057
  2171
    if (!_this) {
slouken@3057
  2172
        SDL_UninitializedVideo();
slouken@3057
  2173
        return;
slouken@3057
  2174
    }
slouken@3057
  2175
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2176
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2177
            return;
slouken@3057
  2178
        }
slouken@3057
  2179
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2180
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2181
        }
slouken@3057
  2182
    }
slouken@3057
  2183
}
slouken@3057
  2184
slouken@1926
  2185
SDL_bool
slouken@1926
  2186
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2187
{
slouken@5209
  2188
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2189
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2190
    const char *extensions;
slouken@2753
  2191
    const char *start;
slouken@2753
  2192
    const char *where, *terminator;
slouken@1926
  2193
slouken@2753
  2194
    /* Extension names should not have spaces. */
slouken@2753
  2195
    where = SDL_strchr(extension, ' ');
slouken@2753
  2196
    if (where || *extension == '\0') {
slouken@2753
  2197
        return SDL_FALSE;
slouken@2753
  2198
    }
slouken@2753
  2199
    /* See if there's an environment variable override */
slouken@2753
  2200
    start = SDL_getenv(extension);
slouken@2753
  2201
    if (start && *start == '0') {
slouken@2753
  2202
        return SDL_FALSE;
slouken@2753
  2203
    }
slouken@2753
  2204
    /* Lookup the available extensions */
slouken@2753
  2205
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2206
    if (glGetStringFunc) {
slouken@2753
  2207
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2208
    } else {
slouken@2753
  2209
        extensions = NULL;
slouken@2753
  2210
    }
slouken@2753
  2211
    if (!extensions) {
slouken@2753
  2212
        return SDL_FALSE;
slouken@2753
  2213
    }
slouken@2753
  2214
    /*
slouken@2753
  2215
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2216
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2217
     */
slouken@1926
  2218
slouken@2753
  2219
    start = extensions;
slouken@1926
  2220
slouken@2753
  2221
    for (;;) {
slouken@2753
  2222
        where = SDL_strstr(start, extension);
slouken@2753
  2223
        if (!where)
slouken@2753
  2224
            break;
slouken@1926
  2225
slouken@2753
  2226
        terminator = where + SDL_strlen(extension);
slouken@2753
  2227
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2228
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2229
                return SDL_TRUE;
slouken@1926
  2230
slouken@2753
  2231
        start = terminator;
slouken@2753
  2232
    }
slouken@2753
  2233
    return SDL_FALSE;
slouken@1926
  2234
#else
slouken@2753
  2235
    return SDL_FALSE;
slouken@1926
  2236
#endif
slouken@1926
  2237
}
slouken@1926
  2238
slouken@1895
  2239
int
slouken@1895
  2240
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2241
{
slouken@5209
  2242
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2243
    int retval;
slouken@0
  2244
slouken@2753
  2245
    if (!_this) {
slouken@2753
  2246
        SDL_UninitializedVideo();
slouken@2753
  2247
        return -1;
slouken@2753
  2248
    }
slouken@2753
  2249
    retval = 0;
slouken@2753
  2250
    switch (attr) {
slouken@2753
  2251
    case SDL_GL_RED_SIZE:
slouken@2753
  2252
        _this->gl_config.red_size = value;
slouken@2753
  2253
        break;
slouken@2753
  2254
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2255
        _this->gl_config.green_size = value;
slouken@2753
  2256
        break;
slouken@2753
  2257
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2258
        _this->gl_config.blue_size = value;
slouken@2753
  2259
        break;
slouken@2753
  2260
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2261
        _this->gl_config.alpha_size = value;
slouken@2753
  2262
        break;
slouken@2753
  2263
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2264
        _this->gl_config.double_buffer = value;
slouken@2753
  2265
        break;
slouken@2753
  2266
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2267
        _this->gl_config.buffer_size = value;
slouken@2753
  2268
        break;
slouken@2753
  2269
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2270
        _this->gl_config.depth_size = value;
slouken@2753
  2271
        break;
slouken@2753
  2272
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2273
        _this->gl_config.stencil_size = value;
slouken@2753
  2274
        break;
slouken@2753
  2275
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2276
        _this->gl_config.accum_red_size = value;
slouken@2753
  2277
        break;
slouken@2753
  2278
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2279
        _this->gl_config.accum_green_size = value;
slouken@2753
  2280
        break;
slouken@2753
  2281
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2282
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2283
        break;
slouken@2753
  2284
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2285
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2286
        break;
slouken@2753
  2287
    case SDL_GL_STEREO:
slouken@2753
  2288
        _this->gl_config.stereo = value;
slouken@2753
  2289
        break;
slouken@2753
  2290
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2291
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2292
        break;
slouken@2753
  2293
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2294
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2295
        break;
slouken@2753
  2296
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2297
        _this->gl_config.accelerated = value;
slouken@2753
  2298
        break;
slouken@2753
  2299
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2300
        _this->gl_config.retained_backing = value;
slouken@2753
  2301
        break;
slouken@3100
  2302
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2303
        _this->gl_config.major_version = value;
slouken@3100
  2304
        break;
slouken@3100
  2305
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2306
        _this->gl_config.minor_version = value;
slouken@3100
  2307
        break;
slouken@6370
  2308
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2309
        _this->gl_config.use_egl = value;
slouken@6370
  2310
        break;
slouken@6296
  2311
    case SDL_GL_CONTEXT_FLAGS:
slouken@6296
  2312
        _this->gl_config.flags = value;
slouken@6296
  2313
        break;
slouken@6296
  2314
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6296
  2315
        _this->gl_config.profile_mask = value;
slouken@6296
  2316
        break;
slouken@2753
  2317
    default:
slouken@2753
  2318
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2319
        retval = -1;
slouken@2753
  2320
        break;
slouken@2753
  2321
    }
slouken@2753
  2322
    return retval;
slouken@1936
  2323
#else
slouken@2753
  2324
    SDL_Unsupported();
slouken@2753
  2325
    return -1;
slouken@2753
  2326
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2327
}
slouken@0
  2328
slouken@1895
  2329
int
slouken@1936
  2330
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2331
{
slouken@5209
  2332
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2333
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2334
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2335
    GLenum attrib = 0;
slouken@3099
  2336
    GLenum error = 0;
slouken@1912
  2337
slouken@2753
  2338
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2339
    if (!glGetIntegervFunc) {
slouken@2753
  2340
        return -1;
slouken@2753
  2341
    }
slouken@3099
  2342
slouken@3099
  2343
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2344
    if (!glGetErrorFunc) {
slouken@3099
  2345
        return -1;
slouken@3099
  2346
    }
slouken@3099
  2347
slouken@3099
  2348
    /* Clear value in any case */
slouken@3139
  2349
    *value = 0;
slouken@3099
  2350
slouken@2753
  2351
    switch (attr) {
slouken@2753
  2352
    case SDL_GL_RED_SIZE:
slouken@2753
  2353
        attrib = GL_RED_BITS;
slouken@2753
  2354
        break;
slouken@2753
  2355
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2356
        attrib = GL_BLUE_BITS;
slouken@2753
  2357
        break;
slouken@2753
  2358
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2359
        attrib = GL_GREEN_BITS;
slouken@2753
  2360
        break;
slouken@2753
  2361
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2362
        attrib = GL_ALPHA_BITS;
slouken@2753
  2363
        break;
slouken@2753
  2364
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2365
#if SDL_VIDEO_OPENGL
slouken@2753
  2366
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2367
        break;
hfutrell@2745
  2368
#else
slouken@3099
  2369
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2370
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2371
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2372
        *value = _this->gl_config.double_buffer;
slouken@2753
  2373
        return 0;
hfutrell@2745
  2374
#endif
slouken@2753
  2375
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2376
        attrib = GL_DEPTH_BITS;
slouken@2753
  2377
        break;
slouken@2753
  2378
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2379
        attrib = GL_STENCIL_BITS;
slouken@2753
  2380
        break;
slouken@5209
  2381
#if SDL_VIDEO_OPENGL
slouken@2753
  2382
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2383
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2384
        break;
slouken@2753
  2385
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2386
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2387
        break;
slouken@2753
  2388
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2389
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2390
        break;
slouken@2753
  2391
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2392
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2393
        break;
slouken@2753
  2394
    case SDL_GL_STEREO:
slouken@2753
  2395
        attrib = GL_STEREO;
slouken@2753
  2396
        break;
hfutrell@2745
  2397
#else
slouken@2753
  2398
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2399
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2400
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2401
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2402
    case SDL_GL_STEREO:
slouken@2753
  2403
        /* none of these are supported in OpenGL ES */
slouken@2753
  2404
        *value = 0;
slouken@2753
  2405
        return 0;
hfutrell@2745
  2406
#endif
slouken@2753
  2407
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2408
#if SDL_VIDEO_OPENGL
slouken@2753
  2409
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2410
#else
slouken@2753
  2411
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2412
#endif
slouken@2753
  2413
        break;
slouken@2753
  2414
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2415
#if SDL_VIDEO_OPENGL
slouken@2753
  2416
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2417
#else
slouken@2753
  2418
        attrib = GL_SAMPLES;
hfutrell@2745
  2419
#endif
slouken@2753
  2420
        break;
slouken@2753
  2421
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2422
        {
slouken@2753
  2423
            GLint bits = 0;
slouken@2753
  2424
            GLint component;
slouken@1936
  2425
slouken@2753
  2426
            /*
slouken@2753
  2427
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2428
             * for this!
slouken@2753
  2429
             */
slouken@2753
  2430
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2431
            bits += component;
slouken@2753
  2432
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2433
            bits += component;
slouken@2753
  2434
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2435
            bits += component;
slouken@2753
  2436
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2437
            bits += component;
slouken@1936
  2438
slouken@2753
  2439
            *value = bits;
slouken@2753
  2440
            return 0;
slouken@2753
  2441
        }
slouken@2753
  2442
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2443
        {
slouken@2753
  2444
            /* FIXME: How do we get this information? */
slouken@3571
  2445
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2446
            return 0;
slouken@2753
  2447
        }
slouken@5210
  2448
    case SDL_GL_RETAINED_BACKING:
slouken@5210
  2449
        {
slouken@5210
  2450
            *value = _this->gl_config.retained_backing;
slouken@5210
  2451
            return 0;
slouken@5210
  2452
        }
slouken@5210
  2453
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@5210
  2454
        {
slouken@5210
  2455
            *value = _this->gl_config.major_version;
slouken@5210
  2456
            return 0;
slouken@5210
  2457
        }
slouken@5210
  2458
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@5210
  2459
        {
slouken@5210
  2460
            *value = _this->gl_config.minor_version;
slouken@5210
  2461
            return 0;
slouken@5210
  2462
        }
slouken@6370
  2463
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2464
        {
slouken@6370
  2465
            *value = _this->gl_config.use_egl;
slouken@6370
  2466
            return 0;
slouken@6370
  2467
        }
slouken@6296
  2468
    case SDL_GL_CONTEXT_FLAGS:
slouken@6296
  2469
        {
slouken@6296
  2470
            *value = _this->gl_config.flags;
slouken@6296
  2471
            return 0;
slouken@6296
  2472
        }
slouken@6296
  2473
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6296
  2474
        {
slouken@6296
  2475
            *value = _this->gl_config.profile_mask;
slouken@6296
  2476
            return 0;
slouken@6296
  2477
        }
slouken@2753
  2478
    default:
slouken@2753
  2479
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2480
        return -1;
slouken@2753
  2481
    }
slouken@0
  2482
slouken@2753
  2483
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@3139
  2484
    error = glGetErrorFunc();
slouken@3139
  2485
    if (error != GL_NO_ERROR) {
slouken@3139
  2486
        switch (error) {
slouken@3139
  2487
        case GL_INVALID_ENUM:
slouken@3139
  2488
            {
slouken@3139
  2489
                SDL_SetError("OpenGL error: GL_INVALID_ENUM");
slouken@3139
  2490
            }
slouken@3139
  2491
            break;
slouken@3139
  2492
        case GL_INVALID_VALUE:
slouken@3139
  2493
            {
slouken@3139
  2494
                SDL_SetError("OpenGL error: GL_INVALID_VALUE");
slouken@3139
  2495
            }
slouken@3139
  2496
            break;
slouken@3139
  2497
        default:
slouken@3139
  2498
            {
slouken@3139
  2499
                SDL_SetError("OpenGL error: %08X", error);
slouken@3139
  2500
            }
slouken@3139
  2501
            break;
slouken@3139
  2502
        }
slouken@3139
  2503
        return -1;
slouken@3099
  2504
    }
slouken@2753
  2505
    return 0;
slouken@1936
  2506
#else
slouken@2753
  2507
    SDL_Unsupported();
slouken@2753
  2508
    return -1;
slouken@2753
  2509
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2510
}
slouken@0
  2511
slouken@1912
  2512
SDL_GLContext
slouken@3685
  2513
SDL_GL_CreateContext(SDL_Window * window)
slouken@1912
  2514
{
icculus@5570
  2515
    SDL_GLContext ctx = NULL;
slouken@3695
  2516
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  2517
slouken@2753
  2518
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2519
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2520
        return NULL;
slouken@2753
  2521
    }
icculus@5570
  2522
icculus@5570
  2523
    ctx = _this->GL_CreateContext(_this, window);
icculus@5570
  2524
icculus@5570
  2525
    /* Creating a context is assumed to make it current in the SDL driver. */
icculus@5570
  2526
    _this->current_glwin = window;
icculus@5570
  2527
    _this->current_glctx = ctx;
icculus@5570
  2528
icculus@5570
  2529
    return ctx;
slouken@1912
  2530
}
slouken@1912
  2531
slouken@1912
  2532
int
icculus@5563
  2533
SDL_GL_MakeCurrent(SDL_Window * window, SDL_GLContext ctx)
slouken@1912
  2534
{
icculus@5563
  2535
    int retval;
icculus@5563
  2536
slouken@3695
  2537
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  2538
slouken@3695
  2539
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2540
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2541
        return -1;
slouken@2753
  2542
    }
icculus@5563
  2543
    if (!ctx) {
slouken@2753
  2544
        window = NULL;
slouken@2753
  2545
    }
icculus@5563
  2546
icculus@5563
  2547
    if ((window == _this->current_glwin) && (ctx == _this->current_glctx)) {
icculus@5563
  2548
        retval = 0;  /* we're already current. */
icculus@5563
  2549
    } else {
icculus@5563
  2550
        retval = _this->GL_MakeCurrent(_this, window, ctx);
icculus@5563
  2551
        if (retval == 0) {
icculus@5563
  2552
            _this->current_glwin = window;
icculus@5563
  2553
            _this->current_glctx = ctx;
icculus@5563
  2554
        }
icculus@5563
  2555
    }
icculus@5563
  2556
icculus@5563
  2557
    return retval;
slouken@1912
  2558
}
slouken@1912
  2559
slouken@1912
  2560
int
slouken@1912
  2561
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2562
{
slouken@2753
  2563
    if (!_this) {
slouken@2753
  2564
        SDL_UninitializedVideo();
slouken@2753
  2565
        return -1;
icculus@5571
  2566
    } else if (_this->current_glctx == NULL) {
icculus@5571
  2567
        SDL_SetError("No OpenGL context has been made current");
icculus@5571
  2568
        return -1;
icculus@5571
  2569
    } else if (_this->GL_SetSwapInterval) {
slouken@2753
  2570
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2571
    } else {
slouken@2753
  2572
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2573
        return -1;
slouken@2753
  2574
    }
slouken@1912
  2575
}
slouken@1912
  2576
slouken@1912
  2577
int
slouken@1912
  2578
SDL_GL_GetSwapInterval(void)
slouken@1912
  2579
{
slouken@2753
  2580
    if (!_this) {
icculus@6382
  2581
        return 0;
icculus@5571
  2582
    } else if (_this->current_glctx == NULL) {
icculus@6382
  2583
        return 0;
icculus@5571
  2584
    } else if (_this->GL_GetSwapInterval) {
slouken@2753
  2585
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2586
    } else {
icculus@6382
  2587
        return 0;
slouken@2753
  2588
    }
slouken@1912
  2589
}
slouken@1912
  2590
slouken@1895
  2591
void
slouken@3685
  2592
SDL_GL_SwapWindow(SDL_Window * window)
slouken@0
  2593
{
slouken@3695
  2594
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  2595
slouken@2753
  2596
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2597
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2598
        return;
slouken@2753
  2599
    }
slouken@2753
  2600
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2601
}
slouken@1912
  2602
slouken@1912
  2603
void
slouken@1912
  2604
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2605
{
slouken@4526
  2606
    if (!_this || !_this->gl_data || !context) {
slouken@2753
  2607
        return;
slouken@2753
  2608
    }
slouken@2753
  2609
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2610
    _this->GL_DeleteContext(_this, context);
slouken@0
  2611
}
slouken@0
  2612
slouken@1895
  2613
#if 0                           // FIXME
hfutrell@2744
  2614
/*
hfutrell@2744
  2615
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2616
 * & 2 for alpha channel.
hfutrell@2744
  2617
 */
slouken@1895
  2618
static void
slouken@1895
  2619
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2620
{
slouken@2753
  2621
    int x, y;
slouken@2753
  2622
    Uint32 colorkey;
slouken@0
  2623
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2624
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2625
slouken@2753
  2626
    colorkey = icon->format->colorkey;
slouken@2753
  2627
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2628
    case 1:
slouken@2753
  2629
        {
slouken@2753
  2630
            Uint8 *pixels;
slouken@2753
  2631
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2632
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2633
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2634
                    if (*pixels++ == colorkey) {
slouken@2753
  2635
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2636
                    }
slouken@2753
  2637
                }
slouken@2753
  2638
            }
slouken@2753
  2639
        }
slouken@2753
  2640
        break;
slouken@0
  2641
slouken@2753
  2642
    case 2:
slouken@2753
  2643
        {
slouken@2753
  2644
            Uint16 *pixels;
slouken@2753
  2645
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2646
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2647
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2648
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2649
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2650
                    } else if ((flags & 2)
slouken@2753
  2651
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2652
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2653
                    }
slouken@2753
  2654
                    pixels++;
slouken@2753
  2655
                }
slouken@2753
  2656
            }
slouken@2753
  2657
        }
slouken@2753
  2658
        break;
slouken@0
  2659
slouken@2753
  2660
    case 4:
slouken@2753
  2661
        {
slouken@2753
  2662
            Uint32 *pixels;
slouken@2753
  2663
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2664
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2665
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2666
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2667
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2668
                    } else if ((flags & 2)
slouken@2753
  2669
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2670
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2671
                    }
slouken@2753
  2672
                    pixels++;
slouken@2753
  2673
                }
slouken@2753
  2674
            }
slouken@2753
  2675
        }
slouken@2753
  2676
        break;
slouken@2753
  2677
    }
slouken@0
  2678
}
slouken@0
  2679
slouken@0
  2680
/*
slouken@0
  2681
 * Sets the window manager icon for the display window.
slouken@0
  2682
 */
slouken@1895
  2683
void
slouken@1895
  2684
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)