src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 12 Aug 2012 11:16:24 -0700
changeset 6393 a773384edf20
parent 6392 fa7eb111f994
child 6418 9c12f2c8057b
permissions -rwxr-xr-x
Fixed bug 1565 - some small GL context creation enhancements

Matthias Bentrup 2012-08-09 12:53:17 PDT

With OpenGL 4.3 the ARB added a new context flag for context reset isolation
and renamed the existing ES2 profile bit to ES profile bit, as it can be used
to request GLES 3 compatible contexts, too.

This patch adds these changes to SDL on Linux and Windows.

Also SDL lacks the ability to create shared contexts. This patch also adds a
new GL attribute to enable context sharing. As casting a GL context to int is
not portable, I added only a boolean attribute
SDL_GL_SHARE_WITH_CURRENT_CONTEXT, which makes the new context share resources
with the context current on the creating thread.
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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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   237
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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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   254
        /* 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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   260
        }
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        SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, data);
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   263
        data->renderer = renderer;
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   264
    }
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   265
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   266
    /* Free any old texture and pixel data */
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   267
    if (data->texture) {
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   268
        SDL_DestroyTexture(data->texture);
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        data->texture = NULL;
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   270
    }
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   271
    if (data->pixels) {
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        SDL_free(data->pixels);
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   273
        data->pixels = NULL;
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   274
    }
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   275
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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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   279
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   280
    /* 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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   286
            break;
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        }
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   288
    }
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   289
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   290
    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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   293
    if (!data->texture) {
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   294
        return -1;
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   295
    }
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   296
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   297
    /* 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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   300
    data->pixels = SDL_malloc(window->h * data->pitch);
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   301
    if (!data->pixels) {
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   302
        SDL_OutOfMemory();
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   303
        return -1;
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   304
    }
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   305
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   306
    *pixels = data->pixels;
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   307
    *pitch = data->pitch;
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   308
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   309
    /* Make sure we're not double-scaling the viewport */
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   310
    SDL_RenderSetViewport(data->renderer, NULL);
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   311
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   312
    return 0;
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   313
}
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   314
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   315
static int
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   316
SDL_UpdateWindowTexture(_THIS, SDL_Window * window, SDL_Rect * rects, int numrects)
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   317
{
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   318
    SDL_WindowTextureData *data;
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   319
    SDL_Rect rect;
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   320
    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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   324
        SDL_SetError("No window texture data");
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   325
        return -1;
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   326
    }
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   327
slouken@5294
   328
    /* Update a single rect that contains subrects for best DMA performance */
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   329
    if (SDL_GetSpanEnclosingRect(window->w, window->h, numrects, rects, &rect)) {
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   330
        src = (void *)((Uint8 *)data->pixels +
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   331
                        rect.y * data->pitch +
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   332
                        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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   334
            return -1;
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   335
        }
slouken@5294
   336
slouken@5294
   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
slouken@5294
   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
slouken@5166
   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
    }
slouken@5166
   355
    if (data->texture) {
slouken@5166
   356
        SDL_DestroyTexture(data->texture);
slouken@5166
   357
    }
slouken@5166
   358
    if (data->renderer) {
slouken@5166
   359
        SDL_DestroyRenderer(data->renderer);
slouken@5166
   360
    }
slouken@5166
   361
    if (data->pixels) {
slouken@5166
   362
        SDL_free(data->pixels);
slouken@5166
   363
    }
slouken@5166
   364
    SDL_free(data);
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   365
}
slouken@5166
   366
slouken@5166
   367
slouken@1895
   368
static int
slouken@1895
   369
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@6393
   508
    _this->gl_config.share_with_current_context = 0;
slouken@0
   509
slouken@2753
   510
    /* Initialize the video subsystem */
slouken@2753
   511
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   512
        SDL_VideoQuit();
slouken@2753
   513
        return -1;
slouken@2753
   514
    }
slouken@5166
   515
slouken@2753
   516
    /* Make sure some displays were added */
slouken@2753
   517
    if (_this->num_displays == 0) {
slouken@2753
   518
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   519
        SDL_VideoQuit();
slouken@2753
   520
        return (-1);
slouken@2753
   521
    }
slouken@0
   522
slouken@5190
   523
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   524
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   525
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   526
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   527
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   528
    }
slouken@5166
   529
slouken@2753
   530
    /* We're ready to go! */
slouken@2753
   531
    return 0;
slouken@0
   532
}
slouken@0
   533
slouken@2753
   534
const char *
slouken@1895
   535
SDL_GetCurrentVideoDriver()
slouken@0
   536
{
slouken@2753
   537
    if (!_this) {
slouken@2753
   538
        SDL_UninitializedVideo();
slouken@2753
   539
        return NULL;
slouken@2753
   540
    }
slouken@2753
   541
    return _this->name;
slouken@0
   542
}
slouken@0
   543
slouken@1895
   544
SDL_VideoDevice *
slouken@4472
   545
SDL_GetVideoDevice(void)
slouken@0
   546
{
slouken@2753
   547
    return _this;
slouken@0
   548
}
slouken@0
   549
slouken@1895
   550
int
slouken@1895
   551
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   552
{
slouken@2753
   553
    SDL_VideoDisplay display;
slouken@0
   554
slouken@2753
   555
    SDL_zero(display);
slouken@2753
   556
    if (desktop_mode) {
slouken@2753
   557
        display.desktop_mode = *desktop_mode;
slouken@2753
   558
    }
slouken@2753
   559
    display.current_mode = display.desktop_mode;
slouken@1895
   560
slouken@2753
   561
    return SDL_AddVideoDisplay(&display);
slouken@0
   562
}
slouken@0
   563
slouken@1895
   564
int
slouken@1895
   565
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   566
{
slouken@2753
   567
    SDL_VideoDisplay *displays;
slouken@2753
   568
    int index = -1;
slouken@0
   569
slouken@2753
   570
    displays =
slouken@2753
   571
        SDL_realloc(_this->displays,
slouken@2753
   572
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   573
    if (displays) {
slouken@2753
   574
        index = _this->num_displays++;
slouken@2753
   575
        displays[index] = *display;
slouken@2753
   576
        displays[index].device = _this;
slouken@2753
   577
        _this->displays = displays;
slouken@2753
   578
    } else {
slouken@2753
   579
        SDL_OutOfMemory();
slouken@2753
   580
    }
slouken@2753
   581
    return index;
slouken@0
   582
}
slouken@0
   583
slouken@1895
   584
int
slouken@1895
   585
SDL_GetNumVideoDisplays(void)
slouken@0
   586
{
slouken@2753
   587
    if (!_this) {
slouken@2753
   588
        SDL_UninitializedVideo();
slouken@2753
   589
        return 0;
slouken@2753
   590
    }
slouken@2753
   591
    return _this->num_displays;
slouken@0
   592
}
slouken@0
   593
slouken@6044
   594
static int
slouken@5380
   595
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   596
{
slouken@5380
   597
    int displayIndex;
slouken@5380
   598
slouken@5380
   599
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   600
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   601
            return displayIndex;
slouken@5380
   602
        }
slouken@5380
   603
    }
slouken@5380
   604
slouken@5380
   605
    /* Couldn't find the display, just use index 0 */
slouken@5380
   606
    return 0;
slouken@5380
   607
}
slouken@5380
   608
slouken@5380
   609
int
slouken@5244
   610
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   611
{
slouken@5244
   612
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   613
slouken@3528
   614
    if (rect) {
slouken@5244
   615
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   616
slouken@3528
   617
        if (_this->GetDisplayBounds) {
slouken@5249
   618
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   619
                return 0;
slouken@3528
   620
            }
slouken@5249
   621
        }
slouken@5249
   622
slouken@5249
   623
        /* Assume that the displays are left to right */
slouken@5249
   624
        if (displayIndex == 0) {
slouken@5249
   625
            rect->x = 0;
slouken@5249
   626
            rect->y = 0;
slouken@3528
   627
        } else {
slouken@5249
   628
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   629
            rect->x += rect->w;
slouken@3528
   630
        }
slouken@5249
   631
        rect->w = display->desktop_mode.w;
slouken@5249
   632
        rect->h = display->desktop_mode.h;
slouken@3528
   633
    }
slouken@3528
   634
    return 0;
slouken@3528
   635
}
slouken@3528
   636
slouken@1895
   637
SDL_bool
slouken@3500
   638
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   639
{
slouken@2753
   640
    SDL_DisplayMode *modes;
slouken@2753
   641
    int i, nmodes;
slouken@0
   642
slouken@2753
   643
    /* Make sure we don't already have the mode in the list */
slouken@2753
   644
    modes = display->display_modes;
slouken@2753
   645
    nmodes = display->num_display_modes;
slouken@2753
   646
    for (i = nmodes; i--;) {
slouken@2753
   647
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   648
            return SDL_FALSE;
slouken@2753
   649
        }
slouken@2753
   650
    }
slouken@1895
   651
slouken@2753
   652
    /* Go ahead and add the new mode */
slouken@2753
   653
    if (nmodes == display->max_display_modes) {
slouken@2753
   654
        modes =
slouken@2753
   655
            SDL_realloc(modes,
slouken@2753
   656
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   657
        if (!modes) {
slouken@2753
   658
            return SDL_FALSE;
slouken@2753
   659
        }
slouken@2753
   660
        display->display_modes = modes;
slouken@2753
   661
        display->max_display_modes += 32;
slouken@2753
   662
    }
slouken@2753
   663
    modes[nmodes] = *mode;
slouken@2753
   664
    display->num_display_modes++;
slouken@1895
   665
lestat@3178
   666
    /* Re-sort video modes */
lestat@3178
   667
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   668
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   669
slouken@2753
   670
    return SDL_TRUE;
slouken@0
   671
}
slouken@0
   672
slouken@5244
   673
static int
slouken@3500
   674
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   675
{
slouken@3500
   676
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   677
        _this->GetDisplayModes(_this, display);
slouken@3500
   678
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   679
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   680
    }
slouken@3500
   681
    return display->num_display_modes;
slouken@3500
   682
}
slouken@3500
   683
slouken@3500
   684
int
slouken@5244
   685
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   686
{
slouken@5244
   687
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   688
slouken@5244
   689
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   690
}
slouken@3500
   691
slouken@3500
   692
int
slouken@5244
   693
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   694
{
slouken@5244
   695
    SDL_VideoDisplay *display;
slouken@5244
   696
slouken@5244
   697
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   698
slouken@5244
   699
    display = &_this->displays[displayIndex];
slouken@3500
   700
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@3500
   701
        SDL_SetError("index must be in the range of 0 - %d",
slouken@3500
   702
                     SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   703
        return -1;
slouken@3500
   704
    }
slouken@3500
   705
    if (mode) {
slouken@3500
   706
        *mode = display->display_modes[index];
slouken@2753
   707
    }
slouken@2753
   708
    return 0;
slouken@0
   709
}
slouken@0
   710
slouken@1967
   711
int
slouken@5244
   712
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   713
{
slouken@5244
   714
    SDL_VideoDisplay *display;
slouken@3500
   715
slouken@5244
   716
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   717
slouken@5244
   718
    display = &_this->displays[displayIndex];
slouken@2753
   719
    if (mode) {
slouken@3500
   720
        *mode = display->desktop_mode;
slouken@2753
   721
    }
slouken@2753
   722
    return 0;
slouken@0
   723
}
slouken@0
   724
slouken@1967
   725
int
slouken@5244
   726
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   727
{
slouken@5244
   728
    SDL_VideoDisplay *display;
slouken@3500
   729
slouken@5244
   730
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   731
slouken@5244
   732
    display = &_this->displays[displayIndex];
slouken@2753
   733
    if (mode) {
slouken@3500
   734
        *mode = display->current_mode;
slouken@2753
   735
    }
slouken@2753
   736
    return 0;
slouken@0
   737
}
slouken@0
   738
slouken@5244
   739
static SDL_DisplayMode *
slouken@3500
   740
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   741
                                    const SDL_DisplayMode * mode,
slouken@3500
   742
                                    SDL_DisplayMode * closest)
slouken@0
   743
{
slouken@2753
   744
    Uint32 target_format;
slouken@2753
   745
    int target_refresh_rate;
slouken@2753
   746
    int i;
slouken@2753
   747
    SDL_DisplayMode *current, *match;
slouken@0
   748
slouken@3500
   749
    if (!mode || !closest) {
slouken@3500
   750
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   751
        return NULL;
slouken@2753
   752
    }
slouken@3500
   753
slouken@2753
   754
    /* Default to the desktop format */
slouken@2753
   755
    if (mode->format) {
slouken@2753
   756
        target_format = mode->format;
slouken@2753
   757
    } else {
slouken@3500
   758
        target_format = display->desktop_mode.format;
slouken@2753
   759
    }
slouken@0
   760
slouken@2753
   761
    /* Default to the desktop refresh rate */
slouken@2753
   762
    if (mode->refresh_rate) {
slouken@2753
   763
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   764
    } else {
slouken@3500
   765
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   766
    }
slouken@0
   767
slouken@2753
   768
    match = NULL;
slouken@3500
   769
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   770
        current = &display->display_modes[i];
slouken@0
   771
slouken@2789
   772
        if (current->w && (current->w < mode->w)) {
slouken@2753
   773
            /* Out of sorted modes large enough here */
slouken@2753
   774
            break;
slouken@2753
   775
        }
slouken@2789
   776
        if (current->h && (current->h < mode->h)) {
slouken@2789
   777
            if (current->w && (current->w == mode->w)) {
slouken@2789
   778
                /* Out of sorted modes large enough here */
slouken@2789
   779
                break;
slouken@2789
   780
            }
slouken@2789
   781
            /* Wider, but not tall enough, due to a different
slouken@2789
   782
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   783
               modes may still follow. */
slouken@2789
   784
            continue;
slouken@2789
   785
        }
slouken@2753
   786
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   787
            match = current;
slouken@2753
   788
            continue;
slouken@2753
   789
        }
slouken@2753
   790
        if (current->format != match->format) {
slouken@2753
   791
            /* Sorted highest depth to lowest */
slouken@2753
   792
            if (current->format == target_format ||
slouken@2753
   793
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   794
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   795
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   796
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   797
                match = current;
slouken@2753
   798
            }
slouken@2753
   799
            continue;
slouken@2753
   800
        }
slouken@2753
   801
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   802
            /* Sorted highest refresh to lowest */
slouken@2753
   803
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   804
                match = current;
slouken@2753
   805
            }
slouken@2753
   806
        }
slouken@2753
   807
    }
slouken@2753
   808
    if (match) {
slouken@2753
   809
        if (match->format) {
slouken@2753
   810
            closest->format = match->format;
slouken@2753
   811
        } else {
slouken@2753
   812
            closest->format = mode->format;
slouken@2753
   813
        }
slouken@2753
   814
        if (match->w && match->h) {
slouken@2753
   815
            closest->w = match->w;
slouken@2753
   816
            closest->h = match->h;
slouken@2753
   817
        } else {
slouken@2753
   818
            closest->w = mode->w;
slouken@2753
   819
            closest->h = mode->h;
slouken@2753
   820
        }
slouken@2753
   821
        if (match->refresh_rate) {
slouken@2753
   822
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   823
        } else {
slouken@2753
   824
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   825
        }
slouken@2753
   826
        closest->driverdata = match->driverdata;
slouken@1895
   827
slouken@2753
   828
        /*
slouken@2753
   829
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   830
         * care
slouken@2753
   831
         */
slouken@2753
   832
        if (!closest->format) {
slouken@2753
   833
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   834
        }
slouken@2753
   835
        if (!closest->w) {
slouken@2753
   836
            closest->w = 640;
slouken@2753
   837
        }
slouken@2753
   838
        if (!closest->h) {
slouken@2753
   839
            closest->h = 480;
slouken@2753
   840
        }
slouken@2753
   841
        return closest;
slouken@2753
   842
    }
slouken@2753
   843
    return NULL;
slouken@0
   844
}
slouken@0
   845
slouken@3500
   846
SDL_DisplayMode *
slouken@5244
   847
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   848
                          const SDL_DisplayMode * mode,
slouken@3500
   849
                          SDL_DisplayMode * closest)
slouken@3500
   850
{
slouken@5244
   851
    SDL_VideoDisplay *display;
slouken@5244
   852
slouken@5244
   853
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   854
slouken@5244
   855
    display = &_this->displays[displayIndex];
slouken@5244
   856
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   857
}
slouken@3500
   858
slouken@6044
   859
static int
slouken@3500
   860
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   861
{
slouken@2753
   862
    SDL_DisplayMode display_mode;
slouken@2753
   863
    SDL_DisplayMode current_mode;
slouken@0
   864
slouken@3502
   865
    if (mode) {
slouken@3502
   866
        display_mode = *mode;
slouken@3502
   867
slouken@3502
   868
        /* Default to the current mode */
slouken@3502
   869
        if (!display_mode.format) {
slouken@3502
   870
            display_mode.format = display->current_mode.format;
slouken@3502
   871
        }
slouken@3502
   872
        if (!display_mode.w) {
slouken@3502
   873
            display_mode.w = display->current_mode.w;
slouken@3502
   874
        }
slouken@3502
   875
        if (!display_mode.h) {
slouken@3502
   876
            display_mode.h = display->current_mode.h;
slouken@3502
   877
        }
slouken@3502
   878
        if (!display_mode.refresh_rate) {
slouken@3502
   879
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   880
        }
slouken@3502
   881
slouken@3502
   882
        /* Get a good video mode, the closest one possible */
slouken@3502
   883
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@3502
   884
            SDL_SetError("No video mode large enough for %dx%d",
slouken@3502
   885
                         display_mode.w, display_mode.h);
slouken@3502
   886
            return -1;
slouken@3502
   887
        }
slouken@3502
   888
    } else {
slouken@3502
   889
        display_mode = display->desktop_mode;
slouken@2753
   890
    }
slouken@3500
   891
slouken@2753
   892
    /* See if there's anything left to do */
slouken@5244
   893
    current_mode = display->current_mode;
slouken@2753
   894
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   895
        return 0;
slouken@2753
   896
    }
slouken@3500
   897
slouken@2753
   898
    /* Actually change the display mode */
slouken@4978
   899
    if (!_this->SetDisplayMode) {
slouken@4978
   900
        SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   901
        return -1;
slouken@4978
   902
    }
slouken@3500
   903
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   904
        return -1;
slouken@2753
   905
    }
slouken@2753
   906
    display->current_mode = display_mode;
slouken@2753
   907
    return 0;
slouken@0
   908
}
slouken@0
   909
slouken@1895
   910
int
slouken@5373
   911
SDL_GetWindowDisplay(SDL_Window * window)
slouken@5246
   912
{
slouken@5246
   913
    int displayIndex;
slouken@5246
   914
    int i, dist;
slouken@5246
   915
    int closest = -1;
slouken@5246
   916
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   917
    SDL_Point center;
slouken@5246
   918
    SDL_Point delta;
slouken@5246
   919
    SDL_Rect rect;
slouken@5246
   920
slouken@5246
   921
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   922
slouken@5246
   923
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   924
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   925
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   926
        if (displayIndex >= _this->num_displays) {
slouken@5246
   927
            displayIndex = 0;
slouken@5246
   928
        }
slouken@5246
   929
        return displayIndex;
slouken@5246
   930
    }
slouken@5246
   931
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   932
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   933
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   934
        if (displayIndex >= _this->num_displays) {
slouken@5246
   935
            displayIndex = 0;
slouken@5246
   936
        }
slouken@5246
   937
        return displayIndex;
slouken@5246
   938
    }
slouken@5246
   939
slouken@5246
   940
    /* Find the display containing the window */
slouken@5246
   941
    center.x = window->x + window->w / 2;
slouken@5246
   942
    center.y = window->y + window->h / 2;
slouken@5246
   943
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   944
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@5246
   945
slouken@5246
   946
        SDL_GetDisplayBounds(i, &rect);
slouken@5246
   947
        if (display->fullscreen_window == window || SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   948
            return i;
slouken@5246
   949
        }
slouken@5246
   950
slouken@5246
   951
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   952
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   953
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   954
        if (dist < closest_dist) {
slouken@5246
   955
            closest = i;
slouken@5246
   956
            closest_dist = dist;
slouken@5246
   957
        }
slouken@5246
   958
    }
slouken@5246
   959
    if (closest < 0) {
slouken@5246
   960
        SDL_SetError("Couldn't find any displays");
slouken@5246
   961
    }
slouken@5246
   962
    return closest;
slouken@5246
   963
}
slouken@5246
   964
slouken@5246
   965
SDL_VideoDisplay *
slouken@5246
   966
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   967
{
slouken@5373
   968
    int displayIndex = SDL_GetWindowDisplay(window);
slouken@5373
   969
    if (displayIndex >= 0) {
slouken@5373
   970
        return &_this->displays[displayIndex];
slouken@5373
   971
    } else {
slouken@5373
   972
        return NULL;
slouken@5373
   973
    }
slouken@5246
   974
}
slouken@5246
   975
slouken@5246
   976
int
slouken@3685
   977
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
   978
{
slouken@3695
   979
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   980
slouken@2753
   981
    if (mode) {
slouken@3500
   982
        window->fullscreen_mode = *mode;
slouken@3500
   983
    } else {
slouken@3500
   984
        SDL_zero(window->fullscreen_mode);
slouken@3500
   985
    }
slouken@3526
   986
    return 0;
slouken@3500
   987
}
slouken@3500
   988
slouken@3500
   989
int
slouken@3685
   990
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
   991
{
slouken@3500
   992
    SDL_DisplayMode fullscreen_mode;
slouken@3500
   993
slouken@3695
   994
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   995
slouken@3500
   996
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
   997
    if (!fullscreen_mode.w) {
slouken@3500
   998
        fullscreen_mode.w = window->w;
slouken@3500
   999
    }
slouken@3500
  1000
    if (!fullscreen_mode.h) {
slouken@3500
  1001
        fullscreen_mode.h = window->h;
slouken@3500
  1002
    }
slouken@3500
  1003
slouken@5246
  1004
    if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1005
                                             &fullscreen_mode,
slouken@3500
  1006
                                             &fullscreen_mode)) {
slouken@3500
  1007
        SDL_SetError("Couldn't find display mode match");
slouken@3500
  1008
        return -1;
slouken@3500
  1009
    }
slouken@3500
  1010
slouken@3500
  1011
    if (mode) {
slouken@3500
  1012
        *mode = fullscreen_mode;
slouken@2753
  1013
    }
slouken@2753
  1014
    return 0;
slouken@0
  1015
}
slouken@0
  1016
slouken@5154
  1017
Uint32
slouken@5154
  1018
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1019
{
slouken@5246
  1020
    SDL_VideoDisplay *display;
slouken@5246
  1021
slouken@5246
  1022
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1023
slouken@5246
  1024
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1025
    return display->current_mode.format;
slouken@5154
  1026
}
slouken@5154
  1027
slouken@3502
  1028
static void
slouken@5479
  1029
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1030
{
slouken@5479
  1031
    int x, y;
slouken@5479
  1032
slouken@5479
  1033
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1034
        SDL_GetMouseState(&x, &y);
slouken@5479
  1035
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1036
    }
slouken@5479
  1037
}
slouken@5479
  1038
slouken@5479
  1039
static void
slouken@5404
  1040
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1041
{
slouken@5246
  1042
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1043
    SDL_Window *other;
slouken@3502
  1044
slouken@5404
  1045
    if (fullscreen) {
slouken@3502
  1046
        /* Hide any other fullscreen windows */
slouken@5249
  1047
        if (display->fullscreen_window &&
slouken@5249
  1048
            display->fullscreen_window != window) {
slouken@5246
  1049
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1050
        }
slouken@3502
  1051
    }
slouken@3502
  1052
slouken@5305
  1053
    /* See if anything needs to be done now */
slouken@5404
  1054
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1055
        return;
slouken@5305
  1056
    }
slouken@5305
  1057
slouken@5249
  1058
    /* See if there are any fullscreen windows */
slouken@5249
  1059
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1060
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1061
slouken@5404
  1062
        if (other == window) {
slouken@5404
  1063
            setDisplayMode = fullscreen;
slouken@5404
  1064
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1065
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1066
            setDisplayMode = SDL_TRUE;
slouken@5404
  1067
        }
slouken@5404
  1068
slouken@5404
  1069
        if (setDisplayMode) {
slouken@5249
  1070
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1071
slouken@5249
  1072
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1073
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1074
slouken@5306
  1075
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1076
                    resized = SDL_FALSE;
slouken@5249
  1077
                }
slouken@3502
  1078
slouken@3502
  1079
                SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@5249
  1080
                if (_this->SetWindowFullscreen) {
slouken@5305
  1081
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1082
                }
slouken@5249
  1083
                display->fullscreen_window = other;
slouken@5249
  1084
slouken@5306
  1085
                /* Generate a mode change event here */
slouken@5306
  1086
                if (resized) {
slouken@5306
  1087
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1088
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1089
                } else {
slouken@5306
  1090
                    SDL_OnWindowResized(other);
slouken@5306
  1091
                }
slouken@5479
  1092
slouken@5479
  1093
                SDL_RestoreMousePosition(other);
slouken@3502
  1094
                return;
slouken@3502
  1095
            }
slouken@3502
  1096
        }
slouken@3502
  1097
    }
slouken@3502
  1098
slouken@3502
  1099
    /* Nope, restore the desktop mode */
slouken@3502
  1100
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1101
slouken@5249
  1102
    if (_this->SetWindowFullscreen) {
slouken@5305
  1103
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1104
    }
slouken@3517
  1105
    display->fullscreen_window = NULL;
slouken@5306
  1106
slouken@5306
  1107
    /* Generate a mode change event here */
slouken@5306
  1108
    SDL_OnWindowResized(window);
slouken@5479
  1109
slouken@5479
  1110
    /* Restore the cursor position */
slouken@5479
  1111
    SDL_RestoreMousePosition(window);
slouken@3502
  1112
}
slouken@3502
  1113
slouken@5380
  1114
#define CREATE_FLAGS \
slouken@5380
  1115
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1116
slouken@5380
  1117
static void
slouken@5380
  1118
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1119
{
slouken@5398
  1120
    window->windowed.x = window->x;
slouken@5398
  1121
    window->windowed.y = window->y;
slouken@5398
  1122
    window->windowed.w = window->w;
slouken@5398
  1123
    window->windowed.h = window->h;
slouken@5398
  1124
slouken@5380
  1125
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1126
        SDL_MaximizeWindow(window);
slouken@5380
  1127
    }
slouken@5380
  1128
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1129
        SDL_MinimizeWindow(window);
slouken@5380
  1130
    }
slouken@5380
  1131
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@5380
  1132
        SDL_SetWindowFullscreen(window, SDL_TRUE);
slouken@5380
  1133
    }
slouken@5380
  1134
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1135
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1136
    }
slouken@5380
  1137
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1138
        SDL_ShowWindow(window);
slouken@5380
  1139
    }
slouken@5380
  1140
}
slouken@5380
  1141
slouken@3685
  1142
SDL_Window *
slouken@1895
  1143
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1144
{
slouken@3685
  1145
    SDL_Window *window;
slouken@0
  1146
slouken@2753
  1147
    if (!_this) {
slouken@3417
  1148
        /* Initialize the video system if needed */
slouken@5123
  1149
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1150
            return NULL;
slouken@3417
  1151
        }
slouken@2753
  1152
    }
slouken@5249
  1153
slouken@6266
  1154
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1155
    if (w < 1) {
slouken@6266
  1156
        w = 1;
slouken@6266
  1157
    }
slouken@6266
  1158
    if (h < 1) {
slouken@6266
  1159
        h = 1;
slouken@6266
  1160
    }
slouken@6266
  1161
slouken@5249
  1162
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1163
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1164
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1165
#endif
slouken@3057
  1166
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1167
        if (!_this->GL_CreateContext) {
slouken@3057
  1168
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1169
            return NULL;
slouken@3057
  1170
        }
slouken@3057
  1171
        SDL_GL_LoadLibrary(NULL);
slouken@2753
  1172
    }
slouken@3685
  1173
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1174
    window->magic = &_this->window_magic;
slouken@3685
  1175
    window->id = _this->next_object_id++;
slouken@3685
  1176
    window->x = x;
slouken@3685
  1177
    window->y = y;
slouken@3685
  1178
    window->w = w;
slouken@3685
  1179
    window->h = h;
slouken@5380
  1180
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1181
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1182
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1183
        int displayIndex;
slouken@5380
  1184
        SDL_Rect bounds;
slouken@5380
  1185
slouken@5380
  1186
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1187
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1188
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1189
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1190
        }
slouken@5380
  1191
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1192
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1193
        }
slouken@5380
  1194
    }
slouken@5380
  1195
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1196
    window->brightness = 1.0f;
slouken@5246
  1197
    window->next = _this->windows;
slouken@5246
  1198
    if (_this->windows) {
slouken@5246
  1199
        _this->windows->prev = window;
slouken@3693
  1200
    }
slouken@5246
  1201
    _this->windows = window;
slouken@3685
  1202
slouken@3685
  1203
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1204
        SDL_DestroyWindow(window);
slouken@3685
  1205
        return NULL;
slouken@3685
  1206
    }
slouken@0
  1207
slouken@2753
  1208
    if (title) {
slouken@3685
  1209
        SDL_SetWindowTitle(window, title);
slouken@2753
  1210
    }
slouken@5380
  1211
    SDL_FinishWindowCreation(window, flags);
slouken@6063
  1212
    
slouken@6063
  1213
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1214
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1215
slouken@3685
  1216
    return window;
slouken@1895
  1217
}
slouken@0
  1218
slouken@3685
  1219
SDL_Window *
slouken@1895
  1220
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1221
{
slouken@3685
  1222
    SDL_Window *window;
slouken@0
  1223
slouken@2753
  1224
    if (!_this) {
slouken@2753
  1225
        SDL_UninitializedVideo();
slouken@3685
  1226
        return NULL;
slouken@3685
  1227
    }
slouken@3685
  1228
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1229
    window->magic = &_this->window_magic;
slouken@3685
  1230
    window->id = _this->next_object_id++;
slouken@3685
  1231
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1232
    window->brightness = 1.0f;
slouken@5246
  1233
    window->next = _this->windows;
slouken@5246
  1234
    if (_this->windows) {
slouken@5246
  1235
        _this->windows->prev = window;
slouken@3693
  1236
    }
slouken@5246
  1237
    _this->windows = window;
slouken@1895
  1238
slouken@2753
  1239
    if (!_this->CreateWindowFrom ||
slouken@3685
  1240
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1241
        SDL_DestroyWindow(window);
slouken@3685
  1242
        return NULL;
slouken@3685
  1243
    }
slouken@3685
  1244
    return window;
slouken@1895
  1245
}
slouken@1895
  1246
slouken@1924
  1247
int
slouken@1928
  1248
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1249
{
slouken@2753
  1250
    char *title = window->title;
slouken@1956
  1251
slouken@2753
  1252
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
  1253
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1254
        return -1;
slouken@2753
  1255
    }
slouken@3057
  1256
slouken@3057
  1257
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1258
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1259
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1260
    } else {
slouken@3057
  1261
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1262
    }
slouken@3057
  1263
slouken@5249
  1264
    /* Restore video mode, etc. */
slouken@5305
  1265
    SDL_HideWindow(window);
slouken@5249
  1266
slouken@5249
  1267
    /* Tear down the old native window */
slouken@5249
  1268
    if (window->surface) {
slouken@5288
  1269
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1270
        SDL_FreeSurface(window->surface);
slouken@5249
  1271
    }
slouken@5249
  1272
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1273
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1274
    }
slouken@3057
  1275
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1276
        _this->DestroyWindow(_this, window);
slouken@2753
  1277
    }
slouken@3057
  1278
slouken@5249
  1279
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1280
        if (flags & SDL_WINDOW_OPENGL) {
slouken@5249
  1281
            SDL_GL_LoadLibrary(NULL);
slouken@5249
  1282
        } else {
slouken@5249
  1283
            SDL_GL_UnloadLibrary();
slouken@5249
  1284
        }
slouken@5249
  1285
    }
slouken@5249
  1286
slouken@2753
  1287
    window->title = NULL;
slouken@5380
  1288
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1289
slouken@3057
  1290
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1291
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1292
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1293
                SDL_GL_UnloadLibrary();
slouken@3057
  1294
            }
slouken@3057
  1295
            return -1;
slouken@3057
  1296
        }
slouken@2753
  1297
    }
slouken@3057
  1298
slouken@2753
  1299
    if (title) {
slouken@3685
  1300
        SDL_SetWindowTitle(window, title);
slouken@2753
  1301
        SDL_free(title);
slouken@2753
  1302
    }
slouken@5380
  1303
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1304
slouken@2753
  1305
    return 0;
slouken@1924
  1306
}
slouken@1924
  1307
slouken@1895
  1308
Uint32
slouken@3685
  1309
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1310
{
slouken@3695
  1311
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1312
slouken@3685
  1313
    return window->id;
slouken@3685
  1314
}
slouken@3685
  1315
slouken@3685
  1316
SDL_Window *
slouken@3685
  1317
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1318
{
slouken@3685
  1319
    SDL_Window *window;
slouken@3685
  1320
slouken@3685
  1321
    if (!_this) {
slouken@3685
  1322
        return NULL;
slouken@3685
  1323
    }
slouken@5246
  1324
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1325
        if (window->id == id) {
slouken@5246
  1326
            return window;
slouken@3685
  1327
        }
slouken@3685
  1328
    }
slouken@3685
  1329
    return NULL;
slouken@3685
  1330
}
slouken@3685
  1331
slouken@3685
  1332
Uint32
slouken@3685
  1333
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1334
{
slouken@3695
  1335
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1336
slouken@2753
  1337
    return window->flags;
slouken@1895
  1338
}
slouken@1895
  1339
slouken@1895
  1340
void
slouken@3685
  1341
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1342
{
slouken@3695
  1343
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1344
slouken@3695
  1345
    if (title == window->title) {
slouken@2753
  1346
        return;
slouken@2753
  1347
    }
slouken@2753
  1348
    if (window->title) {
slouken@2753
  1349
        SDL_free(window->title);
slouken@2753
  1350
    }
slouken@4871
  1351
    if (title && *title) {
slouken@2753
  1352
        window->title = SDL_strdup(title);
slouken@2753
  1353
    } else {
slouken@2753
  1354
        window->title = NULL;
slouken@2753
  1355
    }
slouken@1956
  1356
slouken@2753
  1357
    if (_this->SetWindowTitle) {
slouken@2753
  1358
        _this->SetWindowTitle(_this, window);
slouken@2753
  1359
    }
slouken@1895
  1360
}
slouken@1895
  1361
slouken@2753
  1362
const char *
slouken@3685
  1363
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1364
{
slouken@4872
  1365
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1366
slouken@4871
  1367
    return window->title ? window->title : "";
slouken@1895
  1368
}
slouken@1895
  1369
slouken@1895
  1370
void
slouken@3685
  1371
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1372
{
slouken@3695
  1373
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1374
slouken@5375
  1375
    if (!icon) {
slouken@5375
  1376
        return;
slouken@5375
  1377
    }
slouken@5375
  1378
slouken@2967
  1379
    if (_this->SetWindowIcon) {
slouken@2967
  1380
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1381
    }
slouken@2967
  1382
}
slouken@2967
  1383
slouken@5165
  1384
void*
slouken@5165
  1385
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1386
{
slouken@5165
  1387
    SDL_WindowUserData *prev, *data;
slouken@3695
  1388
slouken@5165
  1389
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5165
  1390
slouken@5165
  1391
    /* See if the named data already exists */
slouken@5165
  1392
    prev = NULL;
slouken@5165
  1393
    for (data = window->data; data; prev = data, data = data->next) {
slouken@5165
  1394
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1395
            void *last_value = data->data;
slouken@5165
  1396
slouken@5165
  1397
            if (userdata) {
slouken@5165
  1398
                /* Set the new value */
slouken@5165
  1399
                data->data = userdata;
slouken@5165
  1400
            } else {
slouken@5165
  1401
                /* Delete this value */
slouken@5165
  1402
                if (prev) {
slouken@5165
  1403
                    prev->next = data->next;
slouken@5165
  1404
                } else {
slouken@5165
  1405
                    window->data = data->next;
slouken@5165
  1406
                }
slouken@5165
  1407
                SDL_free(data->name);
slouken@5165
  1408
                SDL_free(data);
slouken@5165
  1409
            }
slouken@5165
  1410
            return last_value;
slouken@5165
  1411
        }
slouken@5165
  1412
    }
slouken@5165
  1413
slouken@5165
  1414
    /* Add new data to the window */
slouken@5165
  1415
    if (userdata) {
slouken@5165
  1416
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1417
        data->name = SDL_strdup(name);
slouken@5165
  1418
        data->data = userdata;
slouken@5165
  1419
        data->next = window->data;
slouken@5165
  1420
        window->data = data;
slouken@5165
  1421
    }
slouken@5165
  1422
    return NULL;
slouken@1895
  1423
}
slouken@1895
  1424
slouken@2753
  1425
void *
slouken@5165
  1426
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1427
{
slouken@5165
  1428
    SDL_WindowUserData *data;
slouken@5165
  1429
slouken@3695
  1430
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1431
slouken@5165
  1432
    for (data = window->data; data; data = data->next) {
slouken@5165
  1433
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1434
            return data->data;
slouken@5165
  1435
        }
slouken@5165
  1436
    }
slouken@5165
  1437
    return NULL;
slouken@1895
  1438
}
slouken@1895
  1439
slouken@1895
  1440
void
slouken@3685
  1441
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1442
{
slouken@3695
  1443
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1444
slouken@5305
  1445
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1446
        window->x = x;
slouken@2753
  1447
    }
slouken@5305
  1448
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1449
        window->y = y;
slouken@2753
  1450
    }
slouken@5478
  1451
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1452
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5478
  1453
        int displayIndex;
slouken@5478
  1454
        SDL_Rect bounds;
slouken@5478
  1455
slouken@5478
  1456
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5478
  1457
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5478
  1458
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5478
  1459
            window->x = bounds.x + (bounds.w - window->w) / 2;
slouken@5478
  1460
        }
slouken@5478
  1461
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5478
  1462
            window->y = bounds.y + (bounds.h - window->h) / 2;
slouken@5478
  1463
        }
slouken@5478
  1464
    }
slouken@5246
  1465
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1466
        if (_this->SetWindowPosition) {
slouken@5246
  1467
            _this->SetWindowPosition(_this, window);
slouken@5246
  1468
        }
slouken@5246
  1469
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1470
    }
slouken@1895
  1471
}
slouken@1895
  1472
slouken@1895
  1473
void
slouken@3685
  1474
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1475
{
slouken@5246
  1476
    /* Clear the values */
slouken@5246
  1477
    if (x) {
slouken@5246
  1478
        *x = 0;
slouken@5246
  1479
    }
slouken@5246
  1480
    if (y) {
slouken@5246
  1481
        *y = 0;
slouken@5246
  1482
    }
slouken@5246
  1483
slouken@5246
  1484
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1485
slouken@5246
  1486
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1487
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@5246
  1488
    } else {
slouken@5242
  1489
        if (x) {
slouken@5242
  1490
            *x = window->x;
slouken@5242
  1491
        }
slouken@5242
  1492
        if (y) {
slouken@5242
  1493
            *y = window->y;
slouken@5242
  1494
        }
slouken@2753
  1495
    }
slouken@1895
  1496
}
slouken@1895
  1497
slouken@1895
  1498
void
slouken@3685
  1499
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1500
{
slouken@3695
  1501
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1502
slouken@5249
  1503
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1504
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1505
        window->w = w;
slouken@5276
  1506
        window->h = h;
slouken@5249
  1507
        if (_this->SetWindowSize) {
slouken@5249
  1508
            _this->SetWindowSize(_this, window);
slouken@5249
  1509
        }
slouken@5276
  1510
        if (window->w == w && window->h == h) {
slouken@5276
  1511
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1512
            SDL_OnWindowResized(window);
slouken@5276
  1513
        }
slouken@2753
  1514
    }
slouken@1895
  1515
}
slouken@1895
  1516
slouken@1895
  1517
void
slouken@3685
  1518
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1519
{
slouken@5246
  1520
    int dummy;
slouken@5246
  1521
slouken@5246
  1522
    if (!w) {
slouken@5246
  1523
        w = &dummy;
slouken@5246
  1524
    }
slouken@5246
  1525
    if (!h) {
slouken@5246
  1526
        h = &dummy;
slouken@5246
  1527
    }
slouken@5246
  1528
slouken@5246
  1529
    *w = 0;
slouken@5246
  1530
    *h = 0;
slouken@5246
  1531
slouken@5246
  1532
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1533
slouken@5242
  1534
    if (_this && window && window->magic == &_this->window_magic) {
slouken@2849
  1535
        if (w) {
slouken@2849
  1536
            *w = window->w;
slouken@2849
  1537
        }
slouken@2849
  1538
        if (h) {
slouken@2849
  1539
            *h = window->h;
slouken@2849
  1540
        }
slouken@2849
  1541
    } else {
slouken@2849
  1542
        if (w) {
slouken@2849
  1543
            *w = 0;
slouken@2849
  1544
        }
slouken@2849
  1545
        if (h) {
slouken@2849
  1546
            *h = 0;
slouken@2849
  1547
        }
slouken@2753
  1548
    }
slouken@1895
  1549
}
slouken@1895
  1550
slouken@1895
  1551
void
slouken@3685
  1552
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1553
{
slouken@3695
  1554
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1555
slouken@3695
  1556
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1557
        return;
slouken@2753
  1558
    }
slouken@1895
  1559
slouken@2753
  1560
    if (_this->ShowWindow) {
slouken@2753
  1561
        _this->ShowWindow(_this, window);
slouken@2753
  1562
    }
slouken@3685
  1563
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1564
}
slouken@1895
  1565
slouken@1895
  1566
void
slouken@3685
  1567
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1568
{
slouken@3695
  1569
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1570
slouken@3695
  1571
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1572
        return;
slouken@2753
  1573
    }
slouken@1895
  1574
slouken@5404
  1575
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1576
slouken@2753
  1577
    if (_this->HideWindow) {
slouken@2753
  1578
        _this->HideWindow(_this, window);
slouken@2753
  1579
    }
slouken@3685
  1580
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1581
}
slouken@1895
  1582
slouken@1895
  1583
void
slouken@3685
  1584
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1585
{
slouken@3695
  1586
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1587
slouken@3695
  1588
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1589
        return;
slouken@2753
  1590
    }
slouken@2753
  1591
    if (_this->RaiseWindow) {
slouken@2753
  1592
        _this->RaiseWindow(_this, window);
slouken@2753
  1593
    }
slouken@1895
  1594
}
slouken@1895
  1595
slouken@1895
  1596
void
slouken@3685
  1597
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1598
{
slouken@3695
  1599
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1600
slouken@3695
  1601
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1602
        return;
slouken@2753
  1603
    }
slouken@1895
  1604
slouken@2753
  1605
    if (_this->MaximizeWindow) {
slouken@2753
  1606
        _this->MaximizeWindow(_this, window);
slouken@2753
  1607
    }
slouken@1895
  1608
}
slouken@1895
  1609
slouken@1895
  1610
void
slouken@3685
  1611
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1612
{
slouken@3695
  1613
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1614
slouken@3695
  1615
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1616
        return;
slouken@2753
  1617
    }
slouken@1895
  1618
slouken@5404
  1619
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1620
slouken@2753
  1621
    if (_this->MinimizeWindow) {
slouken@2753
  1622
        _this->MinimizeWindow(_this, window);
slouken@2753
  1623
    }
slouken@1895
  1624
}
slouken@1895
  1625
slouken@1895
  1626
void
slouken@3685
  1627
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1628
{
slouken@3695
  1629
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1630
slouken@3695
  1631
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1632
        return;
slouken@2753
  1633
    }
slouken@1895
  1634
slouken@2753
  1635
    if (_this->RestoreWindow) {
slouken@2753
  1636
        _this->RestoreWindow(_this, window);
slouken@2753
  1637
    }
slouken@1895
  1638
}
slouken@1895
  1639
slouken@1895
  1640
int
slouken@5246
  1641
SDL_SetWindowFullscreen(SDL_Window * window, SDL_bool fullscreen)
slouken@1895
  1642
{
slouken@3695
  1643
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1644
slouken@5404
  1645
    if (!!fullscreen == !!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@2753
  1646
        return 0;
slouken@2753
  1647
    }
slouken@2753
  1648
    if (fullscreen) {
slouken@2753
  1649
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@2753
  1650
    } else {
slouken@2753
  1651
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@5305
  1652
    }
slouken@5404
  1653
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1654
slouken@2753
  1655
    return 0;
slouken@1895
  1656
}
slouken@1895
  1657
slouken@5166
  1658
static SDL_Surface *
slouken@5166
  1659
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1660
{
slouken@5166
  1661
    Uint32 format;
slouken@5166
  1662
    void *pixels;
slouken@5166
  1663
    int pitch;
slouken@5166
  1664
    int bpp;
slouken@5166
  1665
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1666
slouken@5166
  1667
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1668
        return NULL;
slouken@5166
  1669
    }
slouken@5166
  1670
slouken@5166
  1671
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1672
        return NULL;
slouken@5166
  1673
    }
slouken@5166
  1674
slouken@5166
  1675
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1676
        return NULL;
slouken@5166
  1677
    }
slouken@5166
  1678
slouken@5166
  1679
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1680
}
slouken@5166
  1681
slouken@5166
  1682
SDL_Surface *
slouken@5166
  1683
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1684
{
slouken@5166
  1685
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1686
slouken@5172
  1687
    if (!window->surface_valid) {
slouken@5172
  1688
        if (window->surface) {
slouken@5288
  1689
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1690
            SDL_FreeSurface(window->surface);
slouken@5172
  1691
        }
slouken@5166
  1692
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1693
        if (window->surface) {
slouken@5172
  1694
            window->surface_valid = SDL_TRUE;
slouken@5288
  1695
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1696
        }
slouken@5166
  1697
    }
slouken@5166
  1698
    return window->surface;
slouken@5166
  1699
}
slouken@5166
  1700
slouken@5166
  1701
int
slouken@5166
  1702
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1703
{
slouken@5166
  1704
    SDL_Rect full_rect;
slouken@5166
  1705
slouken@5166
  1706
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1707
slouken@5166
  1708
    full_rect.x = 0;
slouken@5166
  1709
    full_rect.y = 0;
slouken@5166
  1710
    full_rect.w = window->w;
slouken@5166
  1711
    full_rect.h = window->h;
slouken@5297
  1712
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1713
}
slouken@5166
  1714
slouken@5166
  1715
int
slouken@5297
  1716
SDL_UpdateWindowSurfaceRects(SDL_Window * window, SDL_Rect * rects,
slouken@5297
  1717
                             int numrects)
slouken@5166
  1718
{
slouken@5166
  1719
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1720
slouken@5172
  1721
    if (!window->surface_valid) {
slouken@5166
  1722
        SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1723
        return -1;
slouken@5166
  1724
    }
slouken@5166
  1725
slouken@5297
  1726
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1727
}
slouken@5166
  1728
slouken@5466
  1729
int
slouken@5466
  1730
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1731
{
slouken@5466
  1732
    Uint16 ramp[256];
slouken@5466
  1733
    int status;
slouken@5466
  1734
slouken@5466
  1735
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1736
slouken@5466
  1737
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1738
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1739
    if (status == 0) {
slouken@5466
  1740
        window->brightness = brightness;
slouken@5466
  1741
    }
slouken@5466
  1742
    return status;
slouken@5466
  1743
}
slouken@5466
  1744
slouken@5466
  1745
float
slouken@5466
  1746
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1747
{
slouken@5466
  1748
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1749
slouken@5466
  1750
    return window->brightness;
slouken@5466
  1751
}
slouken@5466
  1752
slouken@5466
  1753
int
slouken@5466
  1754
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1755
                                            const Uint16 * green,
slouken@5466
  1756
                                            const Uint16 * blue)
slouken@5466
  1757
{
slouken@5466
  1758
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1759
slouken@5466
  1760
    if (!_this->SetWindowGammaRamp) {
slouken@5466
  1761
        SDL_Unsupported();
slouken@5466
  1762
        return -1;
slouken@5466
  1763
    }
slouken@5466
  1764
slouken@5466
  1765
    if (!window->gamma) {
slouken@5466
  1766
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1767
            return -1;
slouken@5466
  1768
        }
slouken@5466
  1769
    }
slouken@5466
  1770
slouken@5466
  1771
    if (red) {
slouken@5466
  1772
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1773
    }
slouken@5466
  1774
    if (green) {
slouken@5466
  1775
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1776
    }
slouken@5466
  1777
    if (blue) {
slouken@5466
  1778
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1779
    }
slouken@5466
  1780
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1781
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1782
    } else {
slouken@5466
  1783
        return 0;
slouken@5466
  1784
    }
slouken@5466
  1785
}
slouken@5466
  1786
slouken@5466
  1787
int
slouken@5466
  1788
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1789
                                            Uint16 * green,
slouken@5466
  1790
                                            Uint16 * blue)
slouken@5466
  1791
{
slouken@5466
  1792
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1793
slouken@5466
  1794
    if (!window->gamma) {
slouken@5466
  1795
        int i;
slouken@5466
  1796
slouken@5466
  1797
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1798
        if (!window->gamma) {
slouken@5466
  1799
            SDL_OutOfMemory();
slouken@5466
  1800
            return -1;
slouken@5466
  1801
        }
slouken@5466
  1802
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1803
slouken@5466
  1804
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1805
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1806
                return -1;
slouken@5466
  1807
            }
slouken@5466
  1808
        } else {
slouken@5466
  1809
            /* Create an identity gamma ramp */
slouken@5466
  1810
            for (i = 0; i < 256; ++i) {
slouken@5466
  1811
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1812
slouken@5466
  1813
                window->gamma[0*256+i] = value;
slouken@5466
  1814
                window->gamma[1*256+i] = value;
slouken@5466
  1815
                window->gamma[2*256+i] = value;
slouken@5466
  1816
            }
slouken@5466
  1817
        }
slouken@5466
  1818
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1819
    }
slouken@5466
  1820
slouken@5466
  1821
    if (red) {
slouken@5466
  1822
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1823
    }
slouken@5466
  1824
    if (green) {
slouken@5466
  1825
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1826
    }
slouken@5466
  1827
    if (blue) {
slouken@5466
  1828
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1829
    }
slouken@5466
  1830
    return 0;
slouken@5466
  1831
}
slouken@5466
  1832
slouken@2875
  1833
static void
slouken@2876
  1834
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1835
{
slouken@2753
  1836
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1837
        _this->SetWindowGrab(_this, window);
slouken@2753
  1838
    }
slouken@1895
  1839
}
slouken@1895
  1840
slouken@5403
  1841
void
slouken@5403
  1842
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  1843
{
slouken@5403
  1844
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  1845
slouken@5404
  1846
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  1847
        return;
slouken@5403
  1848
    }
slouken@5403
  1849
    if (grabbed) {
slouken@5403
  1850
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1851
    } else {
slouken@5403
  1852
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1853
    }
slouken@5403
  1854
    SDL_UpdateWindowGrab(window);
slouken@5403
  1855
}
slouken@5403
  1856
slouken@5403
  1857
SDL_bool
slouken@3685
  1858
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  1859
{
slouken@5466
  1860
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  1861
slouken@2753
  1862
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1863
}
slouken@1895
  1864
slouken@1895
  1865
void
slouken@1895
  1866
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1867
{
slouken@6260
  1868
    INVALIDATE_GLCONTEXT();
slouken@5404
  1869
    SDL_OnWindowRestored(window);
slouken@1895
  1870
}
slouken@1895
  1871
slouken@1895
  1872
void
slouken@1895
  1873
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1874
{
slouken@6260
  1875
    INVALIDATE_GLCONTEXT();
slouken@5404
  1876
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  1877
}
slouken@1895
  1878
slouken@1895
  1879
void
slouken@5166
  1880
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  1881
{
slouken@5172
  1882
    window->surface_valid = SDL_FALSE;
slouken@5276
  1883
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  1884
}
slouken@5166
  1885
slouken@5166
  1886
void
slouken@3502
  1887
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  1888
{
slouken@5404
  1889
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  1890
}
slouken@3502
  1891
slouken@3502
  1892
void
slouken@3502
  1893
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  1894
{
slouken@3685
  1895
    SDL_RaiseWindow(window);
slouken@5404
  1896
slouken@5404
  1897
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  1898
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  1899
    }
slouken@3502
  1900
}
slouken@3502
  1901
slouken@3502
  1902
void
slouken@1895
  1903
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1904
{
slouken@5466
  1905
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1906
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1907
    }
slouken@5466
  1908
slouken@5480
  1909
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1910
        _this->SetWindowGrab) {
slouken@2753
  1911
        _this->SetWindowGrab(_this, window);
slouken@2753
  1912
    }
slouken@1895
  1913
}
slouken@1895
  1914
slouken@1895
  1915
void
slouken@1895
  1916
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1917
{
slouken@5466
  1918
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  1919
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  1920
    }
slouken@3512
  1921
slouken@5480
  1922
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN)) &&
slouken@5466
  1923
        _this->SetWindowGrab) {
slouken@2753
  1924
        _this->SetWindowGrab(_this, window);
slouken@2753
  1925
    }
slouken@5466
  1926
slouken@5466
  1927
    /* If we're fullscreen on a single-head system and lose focus, minimize */
slouken@5466
  1928
    if ((window->flags & SDL_WINDOW_FULLSCREEN) && _this->num_displays == 1) {
slouken@5466
  1929
        SDL_MinimizeWindow(window);
slouken@5466
  1930
    }
slouken@1895
  1931
}
slouken@1895
  1932
slouken@3685
  1933
SDL_Window *
slouken@1895
  1934
SDL_GetFocusWindow(void)
slouken@1895
  1935
{
slouken@3685
  1936
    SDL_Window *window;
slouken@1895
  1937
slouken@2753
  1938
    if (!_this) {
slouken@3685
  1939
        return NULL;
slouken@3685
  1940
    }
slouken@5246
  1941
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  1942
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  1943
            return window;
slouken@2753
  1944
        }
slouken@2753
  1945
    }
slouken@3685
  1946
    return NULL;
slouken@1895
  1947
}
slouken@1895
  1948
slouken@1895
  1949
void
slouken@3685
  1950
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  1951
{
slouken@3685
  1952
    SDL_VideoDisplay *display;
slouken@3685
  1953
slouken@3695
  1954
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  1955
slouken@6214
  1956
    /* Restore video mode, etc. */
slouken@6214
  1957
    SDL_HideWindow(window);
slouken@6214
  1958
slouken@6214
  1959
    /* Make sure this window no longer has focus */
slouken@6214
  1960
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  1961
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  1962
    }
slouken@6214
  1963
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  1964
        SDL_SetMouseFocus(NULL);
slouken@6214
  1965
    }
slouken@6214
  1966
icculus@5563
  1967
    /* make no context current if this is the current context window. */
icculus@5563
  1968
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  1969
        if (_this->current_glwin == window) {
icculus@5563
  1970
            SDL_GL_MakeCurrent(NULL, NULL);
icculus@5563
  1971
        }
icculus@5563
  1972
    }
icculus@5563
  1973
slouken@5169
  1974
    if (window->surface) {
slouken@5288
  1975
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  1976
        SDL_FreeSurface(window->surface);
slouken@5169
  1977
    }
slouken@5166
  1978
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  1979
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  1980
    }
slouken@3685
  1981
    if (_this->DestroyWindow) {
slouken@3685
  1982
        _this->DestroyWindow(_this, window);
slouken@3685
  1983
    }
slouken@3685
  1984
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  1985
        SDL_GL_UnloadLibrary();
slouken@3685
  1986
    }
slouken@3685
  1987
slouken@5246
  1988
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1989
    if (display->fullscreen_window == window) {
slouken@5246
  1990
        display->fullscreen_window = NULL;
slouken@5246
  1991
    }
slouken@5246
  1992
slouken@4901
  1993
    /* Now invalidate magic */
slouken@4897
  1994
    window->magic = NULL;
slouken@4897
  1995
slouken@5165
  1996
    /* Free memory associated with the window */
slouken@5165
  1997
    if (window->title) {
slouken@5165
  1998
        SDL_free(window->title);
slouken@5165
  1999
    }
slouken@5466
  2000
    if (window->gamma) {
slouken@5466
  2001
        SDL_free(window->gamma);
slouken@5466
  2002
    }
slouken@5165
  2003
    while (window->data) {
slouken@5165
  2004
        SDL_WindowUserData *data = window->data;
slouken@5165
  2005
slouken@5165
  2006
        window->data = data->next;
slouken@5165
  2007
        SDL_free(data->name);
slouken@5165
  2008
        SDL_free(data);
slouken@5165
  2009
    }
slouken@5165
  2010
slouken@3685
  2011
    /* Unlink the window from the list */
slouken@3693
  2012
    if (window->next) {
slouken@3693
  2013
        window->next->prev = window->prev;
slouken@3693
  2014
    }
slouken@3685
  2015
    if (window->prev) {
slouken@3685
  2016
        window->prev->next = window->next;
slouken@3685
  2017
    } else {
slouken@5246
  2018
        _this->windows = window->next;
slouken@3685
  2019
    }
slouken@3685
  2020
slouken@3685
  2021
    SDL_free(window);
slouken@1895
  2022
}
slouken@1895
  2023
slouken@3025
  2024
SDL_bool
slouken@3025
  2025
SDL_IsScreenSaverEnabled()
slouken@3025
  2026
{
slouken@3025
  2027
    if (!_this) {
slouken@3025
  2028
        return SDL_TRUE;
slouken@3025
  2029
    }
slouken@3025
  2030
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2031
}
slouken@3025
  2032
slouken@3025
  2033
void
slouken@3025
  2034
SDL_EnableScreenSaver()
slouken@3025
  2035
{
slouken@3025
  2036
    if (!_this) {
slouken@3025
  2037
        return;
slouken@3025
  2038
    }
slouken@3025
  2039
    if (!_this->suspend_screensaver) {
slouken@3025
  2040
        return;
slouken@3025
  2041
    }
slouken@3025
  2042
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2043
    if (_this->SuspendScreenSaver) {
slouken@3025
  2044
        _this->SuspendScreenSaver(_this);
slouken@3025
  2045
    }
slouken@3025
  2046
}
slouken@3025
  2047
slouken@3025
  2048
void
slouken@3025
  2049
SDL_DisableScreenSaver()
slouken@3025
  2050
{
slouken@3025
  2051
    if (!_this) {
slouken@3025
  2052
        return;
slouken@3025
  2053
    }
slouken@3025
  2054
    if (_this->suspend_screensaver) {
slouken@3025
  2055
        return;
slouken@3025
  2056
    }
slouken@3025
  2057
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2058
    if (_this->SuspendScreenSaver) {
slouken@3025
  2059
        _this->SuspendScreenSaver(_this);
slouken@3025
  2060
    }
slouken@3025
  2061
}
slouken@3025
  2062
slouken@1895
  2063
void
slouken@1895
  2064
SDL_VideoQuit(void)
slouken@1895
  2065
{
slouken@2753
  2066
    int i, j;
slouken@1895
  2067
slouken@2753
  2068
    if (!_this) {
slouken@2753
  2069
        return;
slouken@2753
  2070
    }
slouken@5123
  2071
slouken@2753
  2072
    /* Halt event processing before doing anything else */
slouken@5123
  2073
    SDL_QuitQuit();
slouken@5123
  2074
    SDL_MouseQuit();
slouken@5123
  2075
    SDL_KeyboardQuit();
slouken@2753
  2076
    SDL_StopEventLoop();
slouken@5123
  2077
slouken@3029
  2078
    SDL_EnableScreenSaver();
slouken@1895
  2079
slouken@2753
  2080
    /* Clean up the system video */
slouken@5246
  2081
    while (_this->windows) {
slouken@5246
  2082
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2083
    }
slouken@2753
  2084
    _this->VideoQuit(_this);
slouken@1895
  2085
slouken@2753
  2086
    for (i = _this->num_displays; i--;) {
slouken@2753
  2087
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2088
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2089
            if (display->display_modes[j].driverdata) {
slouken@2753
  2090
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2091
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2092
            }
slouken@2753
  2093
        }
slouken@2753
  2094
        if (display->display_modes) {
slouken@2753
  2095
            SDL_free(display->display_modes);
slouken@2753
  2096
            display->display_modes = NULL;
slouken@2753
  2097
        }
slouken@2753
  2098
        if (display->desktop_mode.driverdata) {
slouken@2753
  2099
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2100
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2101
        }
slouken@2753
  2102
        if (display->driverdata) {
slouken@2753
  2103
            SDL_free(display->driverdata);
slouken@2753
  2104
            display->driverdata = NULL;
slouken@2753
  2105
        }
slouken@2753
  2106
    }
slouken@2753
  2107
    if (_this->displays) {
slouken@2753
  2108
        SDL_free(_this->displays);
slouken@2753
  2109
        _this->displays = NULL;
slouken@2753
  2110
    }
slouken@4495
  2111
    if (_this->clipboard_text) {
slouken@4495
  2112
        SDL_free(_this->clipboard_text);
slouken@4495
  2113
        _this->clipboard_text = NULL;
slouken@4495
  2114
    }
slouken@2753
  2115
    _this->free(_this);
slouken@2753
  2116
    _this = NULL;
slouken@0
  2117
}
slouken@0
  2118
slouken@1895
  2119
int
slouken@1895
  2120
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2121
{
slouken@2753
  2122
    int retval;
slouken@0
  2123
slouken@2753
  2124
    if (!_this) {
slouken@2753
  2125
        SDL_UninitializedVideo();
slouken@2753
  2126
        return -1;
slouken@2753
  2127
    }
slouken@3057
  2128
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2129
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  2130
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  2131
            return -1;
slouken@3057
  2132
        }
slouken@3057
  2133
        retval = 0;
slouken@3057
  2134
    } else {
slouken@3057
  2135
        if (!_this->GL_LoadLibrary) {
slouken@3057
  2136
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2137
            return -1;
slouken@3057
  2138
        }
slouken@2753
  2139
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2140
    }
slouken@3057
  2141
    if (retval == 0) {
slouken@3057
  2142
        ++_this->gl_config.driver_loaded;
slouken@2753
  2143
    }
slouken@2753
  2144
    return (retval);
slouken@0
  2145
}
slouken@0
  2146
slouken@2753
  2147
void *
slouken@1895
  2148
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2149
{
slouken@2753
  2150
    void *func;
slouken@0
  2151
slouken@2753
  2152
    if (!_this) {
slouken@2753
  2153
        SDL_UninitializedVideo();
slouken@2753
  2154
        return NULL;
slouken@2753
  2155
    }
slouken@2753
  2156
    func = NULL;
slouken@2753
  2157
    if (_this->GL_GetProcAddress) {
slouken@2753
  2158
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2159
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2160
        } else {
slouken@2753
  2161
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2162
        }
slouken@2753
  2163
    } else {
slouken@2753
  2164
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2165
    }
slouken@2753
  2166
    return func;
slouken@0
  2167
}
slouken@0
  2168
slouken@3057
  2169
void
slouken@3057
  2170
SDL_GL_UnloadLibrary(void)
slouken@3057
  2171
{
slouken@3057
  2172
    if (!_this) {
slouken@3057
  2173
        SDL_UninitializedVideo();
slouken@3057
  2174
        return;
slouken@3057
  2175
    }
slouken@3057
  2176
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2177
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2178
            return;
slouken@3057
  2179
        }
slouken@3057
  2180
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2181
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2182
        }
slouken@3057
  2183
    }
slouken@3057
  2184
}
slouken@3057
  2185
slouken@1926
  2186
SDL_bool
slouken@1926
  2187
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2188
{
slouken@5209
  2189
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2190
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2191
    const char *extensions;
slouken@2753
  2192
    const char *start;
slouken@2753
  2193
    const char *where, *terminator;
slouken@1926
  2194
slouken@2753
  2195
    /* Extension names should not have spaces. */
slouken@2753
  2196
    where = SDL_strchr(extension, ' ');
slouken@2753
  2197
    if (where || *extension == '\0') {
slouken@2753
  2198
        return SDL_FALSE;
slouken@2753
  2199
    }
slouken@2753
  2200
    /* See if there's an environment variable override */
slouken@2753
  2201
    start = SDL_getenv(extension);
slouken@2753
  2202
    if (start && *start == '0') {
slouken@2753
  2203
        return SDL_FALSE;
slouken@2753
  2204
    }
slouken@2753
  2205
    /* Lookup the available extensions */
slouken@2753
  2206
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  2207
    if (glGetStringFunc) {
slouken@2753
  2208
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2209
    } else {
slouken@2753
  2210
        extensions = NULL;
slouken@2753
  2211
    }
slouken@2753
  2212
    if (!extensions) {
slouken@2753
  2213
        return SDL_FALSE;
slouken@2753
  2214
    }
slouken@2753
  2215
    /*
slouken@2753
  2216
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2217
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2218
     */
slouken@1926
  2219
slouken@2753
  2220
    start = extensions;
slouken@1926
  2221
slouken@2753
  2222
    for (;;) {
slouken@2753
  2223
        where = SDL_strstr(start, extension);
slouken@2753
  2224
        if (!where)
slouken@2753
  2225
            break;
slouken@1926
  2226
slouken@2753
  2227
        terminator = where + SDL_strlen(extension);
slouken@2753
  2228
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2229
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2230
                return SDL_TRUE;
slouken@1926
  2231
slouken@2753
  2232
        start = terminator;
slouken@2753
  2233
    }
slouken@2753
  2234
    return SDL_FALSE;
slouken@1926
  2235
#else
slouken@2753
  2236
    return SDL_FALSE;
slouken@1926
  2237
#endif
slouken@1926
  2238
}
slouken@1926
  2239
slouken@1895
  2240
int
slouken@1895
  2241
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2242
{
slouken@5209
  2243
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2244
    int retval;
slouken@0
  2245
slouken@2753
  2246
    if (!_this) {
slouken@2753
  2247
        SDL_UninitializedVideo();
slouken@2753
  2248
        return -1;
slouken@2753
  2249
    }
slouken@2753
  2250
    retval = 0;
slouken@2753
  2251
    switch (attr) {
slouken@2753
  2252
    case SDL_GL_RED_SIZE:
slouken@2753
  2253
        _this->gl_config.red_size = value;
slouken@2753
  2254
        break;
slouken@2753
  2255
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2256
        _this->gl_config.green_size = value;
slouken@2753
  2257
        break;
slouken@2753
  2258
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2259
        _this->gl_config.blue_size = value;
slouken@2753
  2260
        break;
slouken@2753
  2261
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2262
        _this->gl_config.alpha_size = value;
slouken@2753
  2263
        break;
slouken@2753
  2264
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2265
        _this->gl_config.double_buffer = value;
slouken@2753
  2266
        break;
slouken@2753
  2267
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2268
        _this->gl_config.buffer_size = value;
slouken@2753
  2269
        break;
slouken@2753
  2270
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2271
        _this->gl_config.depth_size = value;
slouken@2753
  2272
        break;
slouken@2753
  2273
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2274
        _this->gl_config.stencil_size = value;
slouken@2753
  2275
        break;
slouken@2753
  2276
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2277
        _this->gl_config.accum_red_size = value;
slouken@2753
  2278
        break;
slouken@2753
  2279
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2280
        _this->gl_config.accum_green_size = value;
slouken@2753
  2281
        break;
slouken@2753
  2282
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2283
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2284
        break;
slouken@2753
  2285
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2286
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2287
        break;
slouken@2753
  2288
    case SDL_GL_STEREO:
slouken@2753
  2289
        _this->gl_config.stereo = value;
slouken@2753
  2290
        break;
slouken@2753
  2291
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2292
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2293
        break;
slouken@2753
  2294
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2295
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2296
        break;
slouken@2753
  2297
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2298
        _this->gl_config.accelerated = value;
slouken@2753
  2299
        break;
slouken@2753
  2300
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2301
        _this->gl_config.retained_backing = value;
slouken@2753
  2302
        break;
slouken@3100
  2303
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2304
        _this->gl_config.major_version = value;
slouken@3100
  2305
        break;
slouken@3100
  2306
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2307
        _this->gl_config.minor_version = value;
slouken@3100
  2308
        break;
slouken@6370
  2309
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2310
        _this->gl_config.use_egl = value;
slouken@6370
  2311
        break;
slouken@6296
  2312
    case SDL_GL_CONTEXT_FLAGS:
slouken@6393
  2313
        if( value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@6393
  2314
		      SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@6393
  2315
		      SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@6393
  2316
		      SDL_GL_CONTEXT_RESET_ISOLATION_FLAG) ) {
slouken@6393
  2317
	    SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@6393
  2318
	    retval = -1;
slouken@6393
  2319
	    break;
slouken@6393
  2320
	}
slouken@6296
  2321
        _this->gl_config.flags = value;
slouken@6296
  2322
        break;
slouken@6296
  2323
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6393
  2324
        if( value != 0 &&
slouken@6393
  2325
	    value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@6393
  2326
	    value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@6393
  2327
	    value != SDL_GL_CONTEXT_PROFILE_ES ) {
slouken@6393
  2328
	    SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@6393
  2329
	    retval = -1;
slouken@6393
  2330
	    break;
slouken@6393
  2331
	}
slouken@6296
  2332
        _this->gl_config.profile_mask = value;
slouken@6296
  2333
        break;
slouken@6393
  2334
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@6393
  2335
        _this->gl_config.share_with_current_context = value;
slouken@6393
  2336
	break;
slouken@2753
  2337
    default:
slouken@2753
  2338
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2339
        retval = -1;
slouken@2753
  2340
        break;
slouken@2753
  2341
    }
slouken@2753
  2342
    return retval;
slouken@1936
  2343
#else
slouken@2753
  2344
    SDL_Unsupported();
slouken@2753
  2345
    return -1;
slouken@2753
  2346
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2347
}
slouken@0
  2348
slouken@1895
  2349
int
slouken@1936
  2350
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2351
{
slouken@5209
  2352
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2353
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2354
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2355
    GLenum attrib = 0;
slouken@3099
  2356
    GLenum error = 0;
slouken@1912
  2357
slouken@2753
  2358
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2359
    if (!glGetIntegervFunc) {
slouken@2753
  2360
        return -1;
slouken@2753
  2361
    }
slouken@3099
  2362
slouken@3099
  2363
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2364
    if (!glGetErrorFunc) {
slouken@3099
  2365
        return -1;
slouken@3099
  2366
    }
slouken@3099
  2367
slouken@3099
  2368
    /* Clear value in any case */
slouken@3139
  2369
    *value = 0;
slouken@3099
  2370
slouken@2753
  2371
    switch (attr) {
slouken@2753
  2372
    case SDL_GL_RED_SIZE:
slouken@2753
  2373
        attrib = GL_RED_BITS;
slouken@2753
  2374
        break;
slouken@2753
  2375
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2376
        attrib = GL_BLUE_BITS;
slouken@2753
  2377
        break;
slouken@2753
  2378
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2379
        attrib = GL_GREEN_BITS;
slouken@2753
  2380
        break;
slouken@2753
  2381
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2382
        attrib = GL_ALPHA_BITS;
slouken@2753
  2383
        break;
slouken@2753
  2384
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2385
#if SDL_VIDEO_OPENGL
slouken@2753
  2386
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2387
        break;
hfutrell@2745
  2388
#else
slouken@3099
  2389
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2390
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2391
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2392
        *value = _this->gl_config.double_buffer;
slouken@2753
  2393
        return 0;
hfutrell@2745
  2394
#endif
slouken@2753
  2395
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2396
        attrib = GL_DEPTH_BITS;
slouken@2753
  2397
        break;
slouken@2753
  2398
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2399
        attrib = GL_STENCIL_BITS;
slouken@2753
  2400
        break;
slouken@5209
  2401
#if SDL_VIDEO_OPENGL
slouken@2753
  2402
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2403
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2404
        break;
slouken@2753
  2405
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2406
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2407
        break;
slouken@2753
  2408
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2409
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2410
        break;
slouken@2753
  2411
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2412
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2413
        break;
slouken@2753
  2414
    case SDL_GL_STEREO:
slouken@2753
  2415
        attrib = GL_STEREO;
slouken@2753
  2416
        break;
hfutrell@2745
  2417
#else
slouken@2753
  2418
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2419
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2420
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2421
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2422
    case SDL_GL_STEREO:
slouken@2753
  2423
        /* none of these are supported in OpenGL ES */
slouken@2753
  2424
        *value = 0;
slouken@2753
  2425
        return 0;
hfutrell@2745
  2426
#endif
slouken@2753
  2427
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2428
#if SDL_VIDEO_OPENGL
slouken@2753
  2429
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2430
#else
slouken@2753
  2431
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2432
#endif
slouken@2753
  2433
        break;
slouken@2753
  2434
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2435
#if SDL_VIDEO_OPENGL
slouken@2753
  2436
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2437
#else
slouken@2753
  2438
        attrib = GL_SAMPLES;
hfutrell@2745
  2439
#endif
slouken@2753
  2440
        break;
slouken@2753
  2441
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2442
        {
slouken@2753
  2443
            GLint bits = 0;
slouken@2753
  2444
            GLint component;
slouken@1936
  2445
slouken@2753
  2446
            /*
slouken@2753
  2447
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2448
             * for this!
slouken@2753
  2449
             */
slouken@2753
  2450
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2451
            bits += component;
slouken@2753
  2452
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2453
            bits += component;
slouken@2753
  2454
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2455
            bits += component;
slouken@2753
  2456
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2457
            bits += component;
slouken@1936
  2458
slouken@2753
  2459
            *value = bits;
slouken@2753
  2460
            return 0;
slouken@2753
  2461
        }
slouken@2753
  2462
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2463
        {
slouken@2753
  2464
            /* FIXME: How do we get this information? */
slouken@3571
  2465
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2466
            return 0;
slouken@2753
  2467
        }
slouken@5210
  2468
    case SDL_GL_RETAINED_BACKING:
slouken@5210
  2469
        {
slouken@5210
  2470
            *value = _this->gl_config.retained_backing;
slouken@5210
  2471
            return 0;
slouken@5210
  2472
        }
slouken@5210
  2473
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@5210
  2474
        {
slouken@5210
  2475
            *value = _this->gl_config.major_version;
slouken@5210
  2476
            return 0;
slouken@5210
  2477
        }
slouken@5210
  2478
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@5210
  2479
        {
slouken@5210
  2480
            *value = _this->gl_config.minor_version;
slouken@5210
  2481
            return 0;
slouken@5210
  2482
        }
slouken@6370
  2483
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2484
        {
slouken@6370
  2485
            *value = _this->gl_config.use_egl;
slouken@6370
  2486
            return 0;
slouken@6370
  2487
        }
slouken@6296
  2488
    case SDL_GL_CONTEXT_FLAGS:
slouken@6296
  2489
        {
slouken@6296
  2490
            *value = _this->gl_config.flags;
slouken@6296
  2491
            return 0;
slouken@6296
  2492
        }
slouken@6296
  2493
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6296
  2494
        {
slouken@6296
  2495
            *value = _this->gl_config.profile_mask;
slouken@6296
  2496
            return 0;
slouken@6296
  2497
        }
slouken@6393
  2498
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@6393
  2499
        {
slouken@6393
  2500
            *value = _this->gl_config.share_with_current_context;
slouken@6393
  2501
            return 0;
slouken@6393
  2502
        }
slouken@2753
  2503
    default:
slouken@2753
  2504
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2505
        return -1;
slouken@2753
  2506
    }
slouken@0
  2507
slouken@2753
  2508
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@3139
  2509
    error = glGetErrorFunc();
slouken@3139
  2510
    if (error != GL_NO_ERROR) {
slouken@3139
  2511
        switch (error) {
slouken@3139
  2512
        case GL_INVALID_ENUM:
slouken@3139
  2513
            {
slouken@3139
  2514
                SDL_SetError("OpenGL error: GL_INVALID_ENUM");
slouken@3139
  2515
            }
slouken@3139
  2516
            break;
slouken@3139
  2517
        case GL_INVALID_VALUE:
slouken@3139
  2518
            {
slouken@3139
  2519
                SDL_SetError("OpenGL error: GL_INVALID_VALUE");
slouken@3139
  2520
            }
slouken@3139
  2521
            break;
slouken@3139
  2522
        default:
slouken@3139
  2523
            {
slouken@3139
  2524
                SDL_SetError("OpenGL error: %08X", error);
slouken@3139
  2525
            }
slouken@3139
  2526
            break;
slouken@3139
  2527
        }
slouken@3139
  2528
        return -1;
slouken@3099
  2529
    }
slouken@2753
  2530
    return 0;
slouken@1936
  2531
#else
slouken@2753
  2532
    SDL_Unsupported();
slouken@2753
  2533
    return -1;
slouken@2753
  2534
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2535
}
slouken@0
  2536
slouken@1912
  2537
SDL_GLContext
slouken@3685
  2538
SDL_GL_CreateContext(SDL_Window * window)
slouken@1912
  2539
{
icculus@5570
  2540
    SDL_GLContext ctx = NULL;
slouken@3695
  2541
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  2542
slouken@2753
  2543
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2544
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2545
        return NULL;
slouken@2753
  2546
    }
icculus@5570
  2547
icculus@5570
  2548
    ctx = _this->GL_CreateContext(_this, window);
icculus@5570
  2549
icculus@5570
  2550
    /* Creating a context is assumed to make it current in the SDL driver. */
icculus@5570
  2551
    _this->current_glwin = window;
icculus@5570
  2552
    _this->current_glctx = ctx;
icculus@5570
  2553
icculus@5570
  2554
    return ctx;
slouken@1912
  2555
}
slouken@1912
  2556
slouken@1912
  2557
int
icculus@5563
  2558
SDL_GL_MakeCurrent(SDL_Window * window, SDL_GLContext ctx)
slouken@1912
  2559
{
icculus@5563
  2560
    int retval;
icculus@5563
  2561
slouken@3695
  2562
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  2563
slouken@3695
  2564
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2565
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2566
        return -1;
slouken@2753
  2567
    }
icculus@5563
  2568
    if (!ctx) {
slouken@2753
  2569
        window = NULL;
slouken@2753
  2570
    }
icculus@5563
  2571
icculus@5563
  2572
    if ((window == _this->current_glwin) && (ctx == _this->current_glctx)) {
icculus@5563
  2573
        retval = 0;  /* we're already current. */
icculus@5563
  2574
    } else {
icculus@5563
  2575
        retval = _this->GL_MakeCurrent(_this, window, ctx);
icculus@5563
  2576
        if (retval == 0) {
icculus@5563
  2577
            _this->current_glwin = window;
icculus@5563
  2578
            _this->current_glctx = ctx;
icculus@5563
  2579
        }
icculus@5563
  2580
    }
icculus@5563
  2581
icculus@5563
  2582
    return retval;
slouken@1912
  2583
}
slouken@1912
  2584
slouken@1912
  2585
int
slouken@1912
  2586
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2587
{
slouken@2753
  2588
    if (!_this) {
slouken@2753
  2589
        SDL_UninitializedVideo();
slouken@2753
  2590
        return -1;
icculus@5571
  2591
    } else if (_this->current_glctx == NULL) {
icculus@5571
  2592
        SDL_SetError("No OpenGL context has been made current");
icculus@5571
  2593
        return -1;
icculus@5571
  2594
    } else if (_this->GL_SetSwapInterval) {
slouken@2753
  2595
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2596
    } else {
slouken@2753
  2597
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2598
        return -1;
slouken@2753
  2599
    }
slouken@1912
  2600
}
slouken@1912
  2601
slouken@1912
  2602
int
slouken@1912
  2603
SDL_GL_GetSwapInterval(void)
slouken@1912
  2604
{
slouken@2753
  2605
    if (!_this) {
icculus@6382
  2606
        return 0;
icculus@5571
  2607
    } else if (_this->current_glctx == NULL) {
icculus@6382
  2608
        return 0;
icculus@5571
  2609
    } else if (_this->GL_GetSwapInterval) {
slouken@2753
  2610
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2611
    } else {
icculus@6382
  2612
        return 0;
slouken@2753
  2613
    }
slouken@1912
  2614
}
slouken@1912
  2615
slouken@1895
  2616
void
slouken@3685
  2617
SDL_GL_SwapWindow(SDL_Window * window)
slouken@0
  2618
{
slouken@3695
  2619
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  2620
slouken@2753
  2621
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2622
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2623
        return;
slouken@2753
  2624
    }
slouken@2753
  2625
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2626
}
slouken@1912
  2627
slouken@1912
  2628
void
slouken@1912
  2629
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2630
{
slouken@4526
  2631
    if (!_this || !_this->gl_data || !context) {
slouken@2753
  2632
        return;
slouken@2753
  2633
    }
slouken@2753
  2634
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2635
    _this->GL_DeleteContext(_this, context);
slouken@0
  2636
}
slouken@0
  2637
slouken@1895
  2638
#if 0                           // FIXME
hfutrell@2744
  2639
/*
hfutrell@2744
  2640
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2641
 * & 2 for alpha channel.
hfutrell@2744
  2642
 */
slouken@1895
  2643
static void
slouken@1895
  2644
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2645
{
slouken@2753
  2646
    int x, y;
slouken@2753
  2647
    Uint32 colorkey;
slouken@0
  2648
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2649
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2650
slouken@2753
  2651
    colorkey = icon->format->colorkey;
slouken@2753
  2652
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2653
    case 1:
slouken@2753
  2654
        {
slouken@2753
  2655
            Uint8 *pixels;
slouken@2753
  2656
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2657
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2658
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2659
                    if (*pixels++ == colorkey) {
slouken@2753
  2660
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2661
                    }
slouken@2753
  2662
                }
slouken@2753
  2663
            }
slouken@2753
  2664
        }
slouken@2753
  2665
        break;
slouken@0
  2666
slouken@2753
  2667
    case 2:
slouken@2753
  2668
        {
slouken@2753
  2669
            Uint16 *pixels;
slouken@2753
  2670
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2671
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2672
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2673
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2674
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2675
                    } else if ((flags & 2)
slouken@2753
  2676
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2677
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2678
                    }
slouken@2753
  2679
                    pixels++;