src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Thu, 29 Aug 2013 08:29:51 -0700
changeset 7720 f9a649383362
parent 7719 31b5f9ff36ca
child 7721 bdf8c2c84e14
permissions -rw-r--r--
Christoph Mallon: Remove pointless if (x) before SDL_FreeSurface(x)
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2013 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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#include "../timer/SDL_timer_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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/* GL and GLES2 headers conflict on Linux 32 bits */
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#if SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL */
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#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_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_ANDROID
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    &Android_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PSP
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    &PSP_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_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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/* Support for framebuffer emulation using an accelerated renderer */
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#define SDL_WINDOWTEXTUREDATA   "_SDL_WindowTextureData"
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typedef struct {
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    SDL_Renderer *renderer;
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    SDL_Texture *texture;
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    void *pixels;
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    int pitch;
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    int bytes_per_pixel;
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} SDL_WindowTextureData;
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static SDL_bool
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ShouldUseTextureFramebuffer()
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{
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    const char *hint;
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    /* If there's no native framebuffer support then there's no option */
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    if (!_this->CreateWindowFramebuffer) {
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        return SDL_TRUE;
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    }
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    /* If the user has specified a software renderer we can't use a
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       texture framebuffer, or renderer creation will go recursive.
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     */
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    hint = SDL_GetHint(SDL_HINT_RENDER_DRIVER);
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    if (hint && SDL_strcasecmp(hint, "software") == 0) {
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        return SDL_FALSE;
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    }
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    /* See if the user or application wants a specific behavior */
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    hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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    if (hint) {
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        if (*hint == '0') {
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            return SDL_FALSE;
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        } else {
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            return SDL_TRUE;
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        }
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    }
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    /* Each platform has different performance characteristics */
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#if defined(__WIN32__)
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    /* GDI BitBlt() is way faster than Direct3D dynamic textures right now.
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     */
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    return SDL_FALSE;
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#elif defined(__MACOSX__)
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    /* Mac OS X uses OpenGL as the native fast path */
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    return SDL_TRUE;
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#elif defined(__LINUX__)
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    /* Properly configured OpenGL drivers are faster than MIT-SHM */
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#if SDL_VIDEO_OPENGL
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    /* Ugh, find a way to cache this value! */
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    {
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        SDL_Window *window;
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        SDL_GLContext context;
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        SDL_bool hasAcceleratedOpenGL = SDL_FALSE;
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        window = SDL_CreateWindow("OpenGL test", -32, -32, 32, 32, SDL_WINDOW_OPENGL|SDL_WINDOW_HIDDEN);
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        if (window) {
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            context = SDL_GL_CreateContext(window);
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            if (context) {
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                const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
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                const char *vendor = NULL;
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                glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
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                if (glGetStringFunc) {
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                    vendor = (const char *) glGetStringFunc(GL_VENDOR);
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                }
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                /* Add more vendors here at will... */
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                if (vendor &&
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                    (SDL_strstr(vendor, "ATI Technologies") ||
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                     SDL_strstr(vendor, "NVIDIA"))) {
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                    hasAcceleratedOpenGL = SDL_TRUE;
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                }
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                SDL_GL_DeleteContext(context);
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            }
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            SDL_DestroyWindow(window);
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        }
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        return hasAcceleratedOpenGL;
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    }
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#elif SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
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    /* Let's be optimistic about this! */
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    return SDL_TRUE;
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#else
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    return SDL_FALSE;
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#endif
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#else
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    /* Play it safe, assume that if there is a framebuffer driver that it's
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       optimized for the current platform.
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    */
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    return SDL_FALSE;
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#endif
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}
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static int
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SDL_CreateWindowTexture(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
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{
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    SDL_WindowTextureData *data;
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    SDL_RendererInfo info;
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    Uint32 i;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data) {
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        SDL_Renderer *renderer = NULL;
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        SDL_RendererInfo info;
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        int i;
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        const char *hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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        /* Check to see if there's a specific driver requested */
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        if (hint && *hint != '0' && *hint != '1' &&
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            SDL_strcasecmp(hint, "software") != 0) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcasecmp(info.name, hint) == 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    break;
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                }
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            }
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        }
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        if (!renderer) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcmp(info.name, "software") != 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    if (renderer) {
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                        break;
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                    }
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                }
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            }
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        }
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        if (!renderer) {
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            return SDL_SetError("No hardware accelerated renderers available");
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        }
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        /* Create the data after we successfully create the renderer (bug #1116) */
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        data = (SDL_WindowTextureData *)SDL_calloc(1, sizeof(*data));
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        if (!data) {
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            SDL_DestroyRenderer(renderer);
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            return SDL_OutOfMemory();
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        }
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        SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, data);
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        data->renderer = renderer;
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    }
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    /* Free any old texture and pixel data */
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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        data->texture = NULL;
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    }
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    SDL_free(data->pixels);
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    data->pixels = NULL;
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    if (SDL_GetRendererInfo(data->renderer, &info) < 0) {
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        return -1;
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    }
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    /* Find the first format without an alpha channel */
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    *format = info.texture_formats[0];
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    for (i = 0; i < info.num_texture_formats; ++i) {
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        if (!SDL_ISPIXELFORMAT_FOURCC(info.texture_formats[i]) &&
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            !SDL_ISPIXELFORMAT_ALPHA(info.texture_formats[i])) {
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            *format = info.texture_formats[i];
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            break;
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        }
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    }
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    data->texture = SDL_CreateTexture(data->renderer, *format,
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                                      SDL_TEXTUREACCESS_STREAMING,
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                                      window->w, window->h);
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    if (!data->texture) {
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        return -1;
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    }
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    /* Create framebuffer data */
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    data->bytes_per_pixel = SDL_BYTESPERPIXEL(*format);
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    data->pitch = (((window->w * data->bytes_per_pixel) + 3) & ~3);
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    data->pixels = SDL_malloc(window->h * data->pitch);
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    if (!data->pixels) {
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        return SDL_OutOfMemory();
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    }
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    *pixels = data->pixels;
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    *pitch = data->pitch;
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    /* Make sure we're not double-scaling the viewport */
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    SDL_RenderSetViewport(data->renderer, NULL);
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    return 0;
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}
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static int
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SDL_UpdateWindowTexture(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
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{
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    SDL_WindowTextureData *data;
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    SDL_Rect rect;
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    void *src;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data || !data->texture) {
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        return SDL_SetError("No window texture data");
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    }
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    /* Update a single rect that contains subrects for best DMA performance */
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    if (SDL_GetSpanEnclosingRect(window->w, window->h, numrects, rects, &rect)) {
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        src = (void *)((Uint8 *)data->pixels +
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                        rect.y * data->pitch +
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                        rect.x * data->bytes_per_pixel);
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        if (SDL_UpdateTexture(data->texture, &rect, src, data->pitch) < 0) {
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            return -1;
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        }
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        if (SDL_RenderCopy(data->renderer, data->texture, NULL, NULL) < 0) {
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            return -1;
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        }
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   331
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        SDL_RenderPresent(data->renderer);
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    }
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    return 0;
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}
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   337
static void
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SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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{
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    SDL_WindowTextureData *data;
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   341
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    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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    if (!data) {
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        return;
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    }
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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    }
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   349
    if (data->renderer) {
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        SDL_DestroyRenderer(data->renderer);
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    }
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    SDL_free(data->pixels);
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    SDL_free(data);
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}
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static int
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cmpmodes(const void *A, const void *B)
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{
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    const SDL_DisplayMode *a = (const SDL_DisplayMode *) A;
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    const SDL_DisplayMode *b = (const SDL_DisplayMode *) B;
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    if (a == b) {
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        return 0;
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    } else if (a->w != b->w) {
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        return b->w - a->w;
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   366
    } else if (a->h != b->h) {
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        return b->h - a->h;
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    } else if (SDL_BITSPERPIXEL(a->format) != SDL_BITSPERPIXEL(b->format)) {
icculus@7440
   369
        return SDL_BITSPERPIXEL(b->format) - SDL_BITSPERPIXEL(a->format);
icculus@7440
   370
    } else if (SDL_PIXELLAYOUT(a->format) != SDL_PIXELLAYOUT(b->format)) {
icculus@7440
   371
        return SDL_PIXELLAYOUT(b->format) - SDL_PIXELLAYOUT(a->format);
icculus@7440
   372
    } else if (a->refresh_rate != b->refresh_rate) {
icculus@7440
   373
        return b->refresh_rate - a->refresh_rate;
slouken@2753
   374
    }
slouken@2753
   375
    return 0;
slouken@1895
   376
}
slouken@1895
   377
icculus@7037
   378
static int
slouken@1912
   379
SDL_UninitializedVideo()
slouken@1912
   380
{
icculus@7037
   381
    return SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   382
}
slouken@1912
   383
slouken@1895
   384
int
slouken@1895
   385
SDL_GetNumVideoDrivers(void)
slouken@1895
   386
{
slouken@2753
   387
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   388
}
slouken@1895
   389
slouken@2753
   390
const char *
slouken@1895
   391
SDL_GetVideoDriver(int index)
slouken@1895
   392
{
slouken@2753
   393
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   394
        return bootstrap[index]->name;
slouken@2753
   395
    }
slouken@2753
   396
    return NULL;
slouken@1895
   397
}
slouken@0
   398
slouken@0
   399
/*
slouken@0
   400
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   401
 */
slouken@1895
   402
int
slouken@5123
   403
SDL_VideoInit(const char *driver_name)
slouken@0
   404
{
slouken@2753
   405
    SDL_VideoDevice *video;
slouken@2753
   406
    int index;
slouken@2753
   407
    int i;
slouken@0
   408
slouken@3694
   409
    /* Check to make sure we don't overwrite '_this' */
slouken@3694
   410
    if (_this != NULL) {
slouken@3694
   411
        SDL_VideoQuit();
slouken@3694
   412
    }
slouken@7191
   413
urkle@7139
   414
#if !SDL_TIMERS_DISABLED
urkle@7139
   415
    SDL_InitTicks();
urkle@7139
   416
#endif
slouken@3694
   417
slouken@2753
   418
    /* Start the event loop */
slouken@7360
   419
    if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0 ||
slouken@5123
   420
        SDL_KeyboardInit() < 0 ||
slouken@5123
   421
        SDL_MouseInit() < 0 ||
slouken@7360
   422
        SDL_TouchInit() < 0) {
slouken@2753
   423
        return -1;
slouken@2753
   424
    }
slouken@3694
   425
slouken@2753
   426
    /* Select the proper video driver */
slouken@2753
   427
    index = 0;
slouken@2753
   428
    video = NULL;
slouken@2753
   429
    if (driver_name == NULL) {
slouken@2753
   430
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   431
    }
slouken@2753
   432
    if (driver_name != NULL) {
slouken@2753
   433
        for (i = 0; bootstrap[i]; ++i) {
slouken@6900
   434
            if (SDL_strncasecmp(bootstrap[i]->name, driver_name, SDL_strlen(driver_name)) == 0) {
slouken@3448
   435
                video = bootstrap[i]->create(index);
slouken@2753
   436
                break;
slouken@2753
   437
            }
slouken@2753
   438
        }
slouken@2753
   439
    } else {
slouken@2753
   440
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   441
            if (bootstrap[i]->available()) {
slouken@2753
   442
                video = bootstrap[i]->create(index);
slouken@2753
   443
                if (video != NULL) {
slouken@2753
   444
                    break;
slouken@2753
   445
                }
slouken@2753
   446
            }
slouken@2753
   447
        }
slouken@2753
   448
    }
slouken@2753
   449
    if (video == NULL) {
slouken@2753
   450
        if (driver_name) {
icculus@7037
   451
            return SDL_SetError("%s not available", driver_name);
slouken@2753
   452
        }
icculus@7037
   453
        return SDL_SetError("No available video device");
slouken@2753
   454
    }
slouken@2753
   455
    _this = video;
slouken@2753
   456
    _this->name = bootstrap[i]->name;
slouken@2753
   457
    _this->next_object_id = 1;
slouken@0
   458
slouken@0
   459
slouken@2753
   460
    /* Set some very sane GL defaults */
slouken@2753
   461
    _this->gl_config.driver_loaded = 0;
slouken@2753
   462
    _this->gl_config.dll_handle = NULL;
slouken@2753
   463
    _this->gl_config.red_size = 3;
slouken@2753
   464
    _this->gl_config.green_size = 3;
slouken@2753
   465
    _this->gl_config.blue_size = 2;
slouken@2753
   466
    _this->gl_config.alpha_size = 0;
slouken@2753
   467
    _this->gl_config.buffer_size = 0;
slouken@2753
   468
    _this->gl_config.depth_size = 16;
slouken@2753
   469
    _this->gl_config.stencil_size = 0;
slouken@2753
   470
    _this->gl_config.double_buffer = 1;
slouken@2753
   471
    _this->gl_config.accum_red_size = 0;
slouken@2753
   472
    _this->gl_config.accum_green_size = 0;
slouken@2753
   473
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   474
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   475
    _this->gl_config.stereo = 0;
slouken@2753
   476
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   477
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   478
    _this->gl_config.retained_backing = 1;
slouken@3571
   479
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@5209
   480
#if SDL_VIDEO_OPENGL
slouken@3100
   481
    _this->gl_config.major_version = 2;
slouken@3100
   482
    _this->gl_config.minor_version = 1;
slouken@6370
   483
    _this->gl_config.use_egl = 0;
slouken@5217
   484
#elif SDL_VIDEO_OPENGL_ES
slouken@5217
   485
    _this->gl_config.major_version = 1;
slouken@5217
   486
    _this->gl_config.minor_version = 1;
gabomdq@7659
   487
#if SDL_VIDEO_OPENGL_EGL    
slouken@6370
   488
    _this->gl_config.use_egl = 1;
gabomdq@7659
   489
#endif    
slouken@5209
   490
#elif SDL_VIDEO_OPENGL_ES2
slouken@5209
   491
    _this->gl_config.major_version = 2;
slouken@5209
   492
    _this->gl_config.minor_version = 0;
gabomdq@7659
   493
#if SDL_VIDEO_OPENGL_EGL    
slouken@6370
   494
    _this->gl_config.use_egl = 1;
slouken@5209
   495
#endif
gabomdq@7659
   496
    
gabomdq@7659
   497
#endif
slouken@6296
   498
    _this->gl_config.flags = 0;
slouken@6296
   499
    _this->gl_config.profile_mask = 0;
slouken@6393
   500
    _this->gl_config.share_with_current_context = 0;
slouken@0
   501
slouken@7412
   502
    _this->current_glwin_tls = SDL_TLSCreate();
slouken@7412
   503
    _this->current_glctx_tls = SDL_TLSCreate();
slouken@7412
   504
slouken@2753
   505
    /* Initialize the video subsystem */
slouken@2753
   506
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   507
        SDL_VideoQuit();
slouken@2753
   508
        return -1;
slouken@2753
   509
    }
slouken@5166
   510
slouken@2753
   511
    /* Make sure some displays were added */
slouken@2753
   512
    if (_this->num_displays == 0) {
slouken@2753
   513
        SDL_VideoQuit();
icculus@7037
   514
        return SDL_SetError("The video driver did not add any displays");
slouken@2753
   515
    }
slouken@0
   516
slouken@5190
   517
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   518
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   519
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   520
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   521
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   522
    }
slouken@5166
   523
slouken@6670
   524
    /* If we don't use a screen keyboard, turn on text input by default,
slouken@6670
   525
       otherwise programs that expect to get text events without enabling
slouken@6670
   526
       UNICODE input won't get any events.
slouken@6670
   527
slouken@6670
   528
       Actually, come to think of it, you needed to call SDL_EnableUNICODE(1)
slouken@6670
   529
       in SDL 1.2 before you got text input events.  Hmm...
slouken@6670
   530
     */
slouken@6670
   531
    if (!SDL_HasScreenKeyboardSupport()) {
slouken@6670
   532
        SDL_StartTextInput();
slouken@6670
   533
    }
slouken@6670
   534
slouken@2753
   535
    /* We're ready to go! */
slouken@2753
   536
    return 0;
slouken@0
   537
}
slouken@0
   538
slouken@2753
   539
const char *
slouken@1895
   540
SDL_GetCurrentVideoDriver()
slouken@0
   541
{
slouken@2753
   542
    if (!_this) {
slouken@2753
   543
        SDL_UninitializedVideo();
slouken@2753
   544
        return NULL;
slouken@2753
   545
    }
slouken@2753
   546
    return _this->name;
slouken@0
   547
}
slouken@0
   548
slouken@1895
   549
SDL_VideoDevice *
slouken@4472
   550
SDL_GetVideoDevice(void)
slouken@0
   551
{
slouken@2753
   552
    return _this;
slouken@0
   553
}
slouken@0
   554
slouken@1895
   555
int
slouken@1895
   556
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   557
{
slouken@2753
   558
    SDL_VideoDisplay display;
slouken@0
   559
slouken@2753
   560
    SDL_zero(display);
slouken@2753
   561
    if (desktop_mode) {
slouken@2753
   562
        display.desktop_mode = *desktop_mode;
slouken@2753
   563
    }
slouken@2753
   564
    display.current_mode = display.desktop_mode;
slouken@1895
   565
slouken@2753
   566
    return SDL_AddVideoDisplay(&display);
slouken@0
   567
}
slouken@0
   568
slouken@1895
   569
int
slouken@1895
   570
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   571
{
slouken@2753
   572
    SDL_VideoDisplay *displays;
slouken@2753
   573
    int index = -1;
slouken@0
   574
slouken@2753
   575
    displays =
slouken@2753
   576
        SDL_realloc(_this->displays,
slouken@2753
   577
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   578
    if (displays) {
slouken@2753
   579
        index = _this->num_displays++;
slouken@2753
   580
        displays[index] = *display;
slouken@2753
   581
        displays[index].device = _this;
slouken@2753
   582
        _this->displays = displays;
slouken@6787
   583
slouken@6787
   584
        if (display->name) {
slouken@6787
   585
            displays[index].name = SDL_strdup(display->name);
slouken@6787
   586
        } else {
slouken@6787
   587
            char name[32];
slouken@6787
   588
slouken@6787
   589
            SDL_itoa(index, name, 10);
slouken@6787
   590
            displays[index].name = SDL_strdup(name);
slouken@6787
   591
        }
slouken@2753
   592
    } else {
slouken@2753
   593
        SDL_OutOfMemory();
slouken@2753
   594
    }
slouken@2753
   595
    return index;
slouken@0
   596
}
slouken@0
   597
slouken@1895
   598
int
slouken@1895
   599
SDL_GetNumVideoDisplays(void)
slouken@0
   600
{
slouken@2753
   601
    if (!_this) {
slouken@2753
   602
        SDL_UninitializedVideo();
slouken@2753
   603
        return 0;
slouken@2753
   604
    }
slouken@2753
   605
    return _this->num_displays;
slouken@0
   606
}
slouken@0
   607
slouken@6044
   608
static int
slouken@5380
   609
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   610
{
slouken@5380
   611
    int displayIndex;
slouken@5380
   612
slouken@5380
   613
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   614
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   615
            return displayIndex;
slouken@5380
   616
        }
slouken@5380
   617
    }
slouken@5380
   618
slouken@5380
   619
    /* Couldn't find the display, just use index 0 */
slouken@5380
   620
    return 0;
slouken@5380
   621
}
slouken@5380
   622
slouken@6787
   623
const char *
slouken@6787
   624
SDL_GetDisplayName(int displayIndex)
slouken@6787
   625
{
slouken@6787
   626
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@6787
   627
slouken@6787
   628
    return _this->displays[displayIndex].name;
slouken@6787
   629
}
slouken@6787
   630
slouken@5380
   631
int
slouken@5244
   632
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   633
{
slouken@5244
   634
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   635
slouken@3528
   636
    if (rect) {
slouken@5244
   637
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   638
slouken@3528
   639
        if (_this->GetDisplayBounds) {
slouken@5249
   640
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   641
                return 0;
slouken@3528
   642
            }
slouken@5249
   643
        }
slouken@5249
   644
slouken@5249
   645
        /* Assume that the displays are left to right */
slouken@5249
   646
        if (displayIndex == 0) {
slouken@5249
   647
            rect->x = 0;
slouken@5249
   648
            rect->y = 0;
slouken@3528
   649
        } else {
slouken@5249
   650
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   651
            rect->x += rect->w;
slouken@3528
   652
        }
slouken@6518
   653
        rect->w = display->current_mode.w;
slouken@6518
   654
        rect->h = display->current_mode.h;
slouken@3528
   655
    }
slouken@3528
   656
    return 0;
slouken@3528
   657
}
slouken@3528
   658
slouken@1895
   659
SDL_bool
slouken@3500
   660
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   661
{
slouken@2753
   662
    SDL_DisplayMode *modes;
slouken@2753
   663
    int i, nmodes;
slouken@0
   664
slouken@2753
   665
    /* Make sure we don't already have the mode in the list */
slouken@2753
   666
    modes = display->display_modes;
slouken@2753
   667
    nmodes = display->num_display_modes;
icculus@7441
   668
    for (i = 0; i < nmodes; ++i) {
icculus@7439
   669
        if (cmpmodes(mode, &modes[i]) == 0) {
slouken@2753
   670
            return SDL_FALSE;
slouken@2753
   671
        }
slouken@2753
   672
    }
slouken@1895
   673
slouken@2753
   674
    /* Go ahead and add the new mode */
slouken@2753
   675
    if (nmodes == display->max_display_modes) {
slouken@2753
   676
        modes =
slouken@2753
   677
            SDL_realloc(modes,
slouken@2753
   678
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   679
        if (!modes) {
slouken@2753
   680
            return SDL_FALSE;
slouken@2753
   681
        }
slouken@2753
   682
        display->display_modes = modes;
slouken@2753
   683
        display->max_display_modes += 32;
slouken@2753
   684
    }
slouken@2753
   685
    modes[nmodes] = *mode;
slouken@2753
   686
    display->num_display_modes++;
slouken@1895
   687
lestat@3178
   688
    /* Re-sort video modes */
lestat@3178
   689
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   690
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   691
slouken@2753
   692
    return SDL_TRUE;
slouken@0
   693
}
slouken@0
   694
slouken@5244
   695
static int
slouken@3500
   696
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   697
{
slouken@3500
   698
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   699
        _this->GetDisplayModes(_this, display);
slouken@3500
   700
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   701
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   702
    }
slouken@3500
   703
    return display->num_display_modes;
slouken@3500
   704
}
slouken@3500
   705
slouken@3500
   706
int
slouken@5244
   707
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   708
{
slouken@5244
   709
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   710
slouken@5244
   711
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   712
}
slouken@3500
   713
slouken@3500
   714
int
slouken@5244
   715
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   716
{
slouken@5244
   717
    SDL_VideoDisplay *display;
slouken@5244
   718
slouken@5244
   719
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   720
slouken@5244
   721
    display = &_this->displays[displayIndex];
slouken@3500
   722
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
icculus@7037
   723
        return SDL_SetError("index must be in the range of 0 - %d",
icculus@7037
   724
                            SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   725
    }
slouken@3500
   726
    if (mode) {
slouken@3500
   727
        *mode = display->display_modes[index];
slouken@2753
   728
    }
slouken@2753
   729
    return 0;
slouken@0
   730
}
slouken@0
   731
slouken@1967
   732
int
slouken@5244
   733
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   734
{
slouken@5244
   735
    SDL_VideoDisplay *display;
slouken@3500
   736
slouken@5244
   737
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   738
slouken@5244
   739
    display = &_this->displays[displayIndex];
slouken@2753
   740
    if (mode) {
slouken@3500
   741
        *mode = display->desktop_mode;
slouken@2753
   742
    }
slouken@2753
   743
    return 0;
slouken@0
   744
}
slouken@0
   745
slouken@1967
   746
int
slouken@5244
   747
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   748
{
slouken@5244
   749
    SDL_VideoDisplay *display;
slouken@3500
   750
slouken@5244
   751
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   752
slouken@5244
   753
    display = &_this->displays[displayIndex];
slouken@2753
   754
    if (mode) {
slouken@3500
   755
        *mode = display->current_mode;
slouken@2753
   756
    }
slouken@2753
   757
    return 0;
slouken@0
   758
}
slouken@0
   759
slouken@5244
   760
static SDL_DisplayMode *
slouken@3500
   761
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   762
                                    const SDL_DisplayMode * mode,
slouken@3500
   763
                                    SDL_DisplayMode * closest)
slouken@0
   764
{
slouken@2753
   765
    Uint32 target_format;
slouken@2753
   766
    int target_refresh_rate;
slouken@2753
   767
    int i;
slouken@2753
   768
    SDL_DisplayMode *current, *match;
slouken@0
   769
slouken@3500
   770
    if (!mode || !closest) {
slouken@3500
   771
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   772
        return NULL;
slouken@2753
   773
    }
slouken@3500
   774
slouken@2753
   775
    /* Default to the desktop format */
slouken@2753
   776
    if (mode->format) {
slouken@2753
   777
        target_format = mode->format;
slouken@2753
   778
    } else {
slouken@3500
   779
        target_format = display->desktop_mode.format;
slouken@2753
   780
    }
slouken@0
   781
slouken@2753
   782
    /* Default to the desktop refresh rate */
slouken@2753
   783
    if (mode->refresh_rate) {
slouken@2753
   784
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   785
    } else {
slouken@3500
   786
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   787
    }
slouken@0
   788
slouken@2753
   789
    match = NULL;
slouken@3500
   790
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   791
        current = &display->display_modes[i];
slouken@0
   792
slouken@2789
   793
        if (current->w && (current->w < mode->w)) {
slouken@2753
   794
            /* Out of sorted modes large enough here */
slouken@2753
   795
            break;
slouken@2753
   796
        }
slouken@2789
   797
        if (current->h && (current->h < mode->h)) {
slouken@2789
   798
            if (current->w && (current->w == mode->w)) {
slouken@2789
   799
                /* Out of sorted modes large enough here */
slouken@2789
   800
                break;
slouken@2789
   801
            }
slouken@2789
   802
            /* Wider, but not tall enough, due to a different
slouken@2789
   803
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   804
               modes may still follow. */
slouken@2789
   805
            continue;
slouken@2789
   806
        }
slouken@2753
   807
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   808
            match = current;
slouken@2753
   809
            continue;
slouken@2753
   810
        }
slouken@2753
   811
        if (current->format != match->format) {
slouken@2753
   812
            /* Sorted highest depth to lowest */
slouken@2753
   813
            if (current->format == target_format ||
slouken@2753
   814
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   815
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   816
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   817
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   818
                match = current;
slouken@2753
   819
            }
slouken@2753
   820
            continue;
slouken@2753
   821
        }
slouken@2753
   822
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   823
            /* Sorted highest refresh to lowest */
slouken@2753
   824
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   825
                match = current;
slouken@2753
   826
            }
slouken@2753
   827
        }
slouken@2753
   828
    }
slouken@2753
   829
    if (match) {
slouken@2753
   830
        if (match->format) {
slouken@2753
   831
            closest->format = match->format;
slouken@2753
   832
        } else {
slouken@2753
   833
            closest->format = mode->format;
slouken@2753
   834
        }
slouken@2753
   835
        if (match->w && match->h) {
slouken@2753
   836
            closest->w = match->w;
slouken@2753
   837
            closest->h = match->h;
slouken@2753
   838
        } else {
slouken@2753
   839
            closest->w = mode->w;
slouken@2753
   840
            closest->h = mode->h;
slouken@2753
   841
        }
slouken@2753
   842
        if (match->refresh_rate) {
slouken@2753
   843
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   844
        } else {
slouken@2753
   845
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   846
        }
slouken@2753
   847
        closest->driverdata = match->driverdata;
slouken@1895
   848
slouken@2753
   849
        /*
slouken@2753
   850
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   851
         * care
slouken@2753
   852
         */
slouken@2753
   853
        if (!closest->format) {
slouken@2753
   854
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   855
        }
slouken@2753
   856
        if (!closest->w) {
slouken@2753
   857
            closest->w = 640;
slouken@2753
   858
        }
slouken@2753
   859
        if (!closest->h) {
slouken@2753
   860
            closest->h = 480;
slouken@2753
   861
        }
slouken@2753
   862
        return closest;
slouken@2753
   863
    }
slouken@2753
   864
    return NULL;
slouken@0
   865
}
slouken@0
   866
slouken@3500
   867
SDL_DisplayMode *
slouken@5244
   868
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   869
                          const SDL_DisplayMode * mode,
slouken@3500
   870
                          SDL_DisplayMode * closest)
slouken@3500
   871
{
slouken@5244
   872
    SDL_VideoDisplay *display;
slouken@5244
   873
slouken@5244
   874
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   875
slouken@5244
   876
    display = &_this->displays[displayIndex];
slouken@5244
   877
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   878
}
slouken@3500
   879
slouken@6044
   880
static int
slouken@3500
   881
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   882
{
slouken@2753
   883
    SDL_DisplayMode display_mode;
slouken@2753
   884
    SDL_DisplayMode current_mode;
slouken@0
   885
slouken@3502
   886
    if (mode) {
slouken@3502
   887
        display_mode = *mode;
slouken@3502
   888
slouken@3502
   889
        /* Default to the current mode */
slouken@3502
   890
        if (!display_mode.format) {
slouken@3502
   891
            display_mode.format = display->current_mode.format;
slouken@3502
   892
        }
slouken@3502
   893
        if (!display_mode.w) {
slouken@3502
   894
            display_mode.w = display->current_mode.w;
slouken@3502
   895
        }
slouken@3502
   896
        if (!display_mode.h) {
slouken@3502
   897
            display_mode.h = display->current_mode.h;
slouken@3502
   898
        }
slouken@3502
   899
        if (!display_mode.refresh_rate) {
slouken@3502
   900
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   901
        }
slouken@3502
   902
slouken@3502
   903
        /* Get a good video mode, the closest one possible */
slouken@3502
   904
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
icculus@7037
   905
            return SDL_SetError("No video mode large enough for %dx%d",
icculus@7037
   906
                                display_mode.w, display_mode.h);
slouken@3502
   907
        }
slouken@3502
   908
    } else {
slouken@3502
   909
        display_mode = display->desktop_mode;
slouken@2753
   910
    }
slouken@3500
   911
slouken@2753
   912
    /* See if there's anything left to do */
slouken@5244
   913
    current_mode = display->current_mode;
slouken@2753
   914
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   915
        return 0;
slouken@2753
   916
    }
slouken@3500
   917
slouken@2753
   918
    /* Actually change the display mode */
slouken@4978
   919
    if (!_this->SetDisplayMode) {
icculus@7037
   920
        return SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   921
    }
slouken@3500
   922
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   923
        return -1;
slouken@2753
   924
    }
slouken@2753
   925
    display->current_mode = display_mode;
slouken@2753
   926
    return 0;
slouken@0
   927
}
slouken@0
   928
slouken@1895
   929
int
slouken@6786
   930
SDL_GetWindowDisplayIndex(SDL_Window * window)
slouken@5246
   931
{
slouken@5246
   932
    int displayIndex;
slouken@5246
   933
    int i, dist;
slouken@5246
   934
    int closest = -1;
slouken@5246
   935
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   936
    SDL_Point center;
slouken@5246
   937
    SDL_Point delta;
slouken@5246
   938
    SDL_Rect rect;
slouken@5246
   939
slouken@5246
   940
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   941
slouken@5246
   942
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   943
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   944
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   945
        if (displayIndex >= _this->num_displays) {
slouken@5246
   946
            displayIndex = 0;
slouken@5246
   947
        }
slouken@5246
   948
        return displayIndex;
slouken@5246
   949
    }
slouken@5246
   950
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   951
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   952
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   953
        if (displayIndex >= _this->num_displays) {
slouken@5246
   954
            displayIndex = 0;
slouken@5246
   955
        }
slouken@5246
   956
        return displayIndex;
slouken@5246
   957
    }
slouken@5246
   958
slouken@5246
   959
    /* Find the display containing the window */
slouken@6547
   960
    for (i = 0; i < _this->num_displays; ++i) {
slouken@6547
   961
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@6547
   962
slouken@6547
   963
        if (display->fullscreen_window == window) {
slouken@6547
   964
            return i;
slouken@6547
   965
        }
slouken@6547
   966
    }
slouken@5246
   967
    center.x = window->x + window->w / 2;
slouken@5246
   968
    center.y = window->y + window->h / 2;
slouken@5246
   969
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   970
        SDL_GetDisplayBounds(i, &rect);
slouken@6547
   971
        if (SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   972
            return i;
slouken@5246
   973
        }
slouken@5246
   974
slouken@5246
   975
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   976
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   977
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   978
        if (dist < closest_dist) {
slouken@5246
   979
            closest = i;
slouken@5246
   980
            closest_dist = dist;
slouken@5246
   981
        }
slouken@5246
   982
    }
slouken@5246
   983
    if (closest < 0) {
slouken@5246
   984
        SDL_SetError("Couldn't find any displays");
slouken@5246
   985
    }
slouken@5246
   986
    return closest;
slouken@5246
   987
}
slouken@5246
   988
slouken@5246
   989
SDL_VideoDisplay *
slouken@5246
   990
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   991
{
slouken@6786
   992
    int displayIndex = SDL_GetWindowDisplayIndex(window);
slouken@5373
   993
    if (displayIndex >= 0) {
slouken@5373
   994
        return &_this->displays[displayIndex];
slouken@5373
   995
    } else {
slouken@5373
   996
        return NULL;
slouken@5373
   997
    }
slouken@5246
   998
}
slouken@5246
   999
slouken@5246
  1000
int
slouken@3685
  1001
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
  1002
{
slouken@3695
  1003
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1004
slouken@2753
  1005
    if (mode) {
slouken@3500
  1006
        window->fullscreen_mode = *mode;
slouken@3500
  1007
    } else {
slouken@3500
  1008
        SDL_zero(window->fullscreen_mode);
slouken@3500
  1009
    }
slouken@3526
  1010
    return 0;
slouken@3500
  1011
}
slouken@3500
  1012
slouken@3500
  1013
int
slouken@3685
  1014
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
  1015
{
slouken@3500
  1016
    SDL_DisplayMode fullscreen_mode;
slouken@7191
  1017
    SDL_VideoDisplay *display;
slouken@3500
  1018
aschiffler@6936
  1019
    if (!mode) {
icculus@7037
  1020
      return SDL_InvalidParamError("mode");
aschiffler@6936
  1021
    }
slouken@7191
  1022
slouken@3695
  1023
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1024
slouken@3500
  1025
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
  1026
    if (!fullscreen_mode.w) {
slouken@3500
  1027
        fullscreen_mode.w = window->w;
slouken@3500
  1028
    }
slouken@3500
  1029
    if (!fullscreen_mode.h) {
slouken@3500
  1030
        fullscreen_mode.h = window->h;
slouken@3500
  1031
    }
slouken@7191
  1032
slouken@7191
  1033
    display = SDL_GetDisplayForWindow(window);
slouken@7191
  1034
slouken@7191
  1035
    /* if in desktop size mode, just return the size of the desktop */
slouken@7191
  1036
    if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) == SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1037
    {
slouken@7191
  1038
        fullscreen_mode = display->desktop_mode;
slouken@7191
  1039
    }
slouken@7191
  1040
    else if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1041
                                             &fullscreen_mode,
slouken@3500
  1042
                                             &fullscreen_mode)) {
icculus@7037
  1043
        return SDL_SetError("Couldn't find display mode match");
slouken@3500
  1044
    }
slouken@3500
  1045
slouken@3500
  1046
    if (mode) {
slouken@3500
  1047
        *mode = fullscreen_mode;
slouken@2753
  1048
    }
slouken@2753
  1049
    return 0;
slouken@0
  1050
}
slouken@0
  1051
slouken@5154
  1052
Uint32
slouken@5154
  1053
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1054
{
slouken@5246
  1055
    SDL_VideoDisplay *display;
slouken@5246
  1056
slouken@5246
  1057
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1058
slouken@5246
  1059
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1060
    return display->current_mode.format;
slouken@5154
  1061
}
slouken@5154
  1062
slouken@3502
  1063
static void
slouken@5479
  1064
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1065
{
slouken@5479
  1066
    int x, y;
slouken@5479
  1067
slouken@5479
  1068
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1069
        SDL_GetMouseState(&x, &y);
slouken@5479
  1070
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1071
    }
slouken@5479
  1072
}
slouken@5479
  1073
slouken@5479
  1074
static void
slouken@5404
  1075
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1076
{
slouken@5246
  1077
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1078
    SDL_Window *other;
slouken@3502
  1079
slouken@5404
  1080
    if (fullscreen) {
slouken@3502
  1081
        /* Hide any other fullscreen windows */
slouken@5249
  1082
        if (display->fullscreen_window &&
slouken@5249
  1083
            display->fullscreen_window != window) {
slouken@5246
  1084
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1085
        }
slouken@3502
  1086
    }
slouken@3502
  1087
slouken@5305
  1088
    /* See if anything needs to be done now */
slouken@5404
  1089
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1090
        return;
slouken@5305
  1091
    }
slouken@5305
  1092
slouken@5249
  1093
    /* See if there are any fullscreen windows */
slouken@5249
  1094
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1095
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1096
slouken@5404
  1097
        if (other == window) {
slouken@5404
  1098
            setDisplayMode = fullscreen;
slouken@5404
  1099
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1100
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1101
            setDisplayMode = SDL_TRUE;
slouken@5404
  1102
        }
slouken@5404
  1103
slouken@5404
  1104
        if (setDisplayMode) {
slouken@5249
  1105
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1106
slouken@5249
  1107
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1108
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1109
slouken@5306
  1110
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1111
                    resized = SDL_FALSE;
slouken@5249
  1112
                }
slouken@3502
  1113
slouken@7191
  1114
                /* only do the mode change if we want exclusive fullscreen */
slouken@7191
  1115
                if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) != SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1116
                    SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@7191
  1117
                else
slouken@7191
  1118
                    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@7191
  1119
slouken@7191
  1120
slouken@5249
  1121
                if (_this->SetWindowFullscreen) {
slouken@5305
  1122
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1123
                }
slouken@5249
  1124
                display->fullscreen_window = other;
slouken@5249
  1125
slouken@5306
  1126
                /* Generate a mode change event here */
slouken@5306
  1127
                if (resized) {
slouken@5306
  1128
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1129
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1130
                } else {
slouken@5306
  1131
                    SDL_OnWindowResized(other);
slouken@5306
  1132
                }
slouken@5479
  1133
slouken@5479
  1134
                SDL_RestoreMousePosition(other);
slouken@3502
  1135
                return;
slouken@3502
  1136
            }
slouken@3502
  1137
        }
slouken@3502
  1138
    }
slouken@3502
  1139
slouken@3502
  1140
    /* Nope, restore the desktop mode */
slouken@3502
  1141
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1142
slouken@5249
  1143
    if (_this->SetWindowFullscreen) {
slouken@5305
  1144
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1145
    }
slouken@3517
  1146
    display->fullscreen_window = NULL;
slouken@5306
  1147
slouken@5306
  1148
    /* Generate a mode change event here */
slouken@5306
  1149
    SDL_OnWindowResized(window);
slouken@5479
  1150
slouken@5479
  1151
    /* Restore the cursor position */
slouken@5479
  1152
    SDL_RestoreMousePosition(window);
slouken@3502
  1153
}
slouken@3502
  1154
slouken@5380
  1155
#define CREATE_FLAGS \
slouken@5380
  1156
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1157
slouken@5380
  1158
static void
slouken@5380
  1159
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1160
{
slouken@5398
  1161
    window->windowed.x = window->x;
slouken@5398
  1162
    window->windowed.y = window->y;
slouken@5398
  1163
    window->windowed.w = window->w;
slouken@5398
  1164
    window->windowed.h = window->h;
slouken@5398
  1165
slouken@5380
  1166
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1167
        SDL_MaximizeWindow(window);
slouken@5380
  1168
    }
slouken@5380
  1169
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1170
        SDL_MinimizeWindow(window);
slouken@5380
  1171
    }
slouken@5380
  1172
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@6755
  1173
        SDL_SetWindowFullscreen(window, flags);
slouken@5380
  1174
    }
slouken@5380
  1175
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1176
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1177
    }
slouken@5380
  1178
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1179
        SDL_ShowWindow(window);
slouken@5380
  1180
    }
slouken@5380
  1181
}
slouken@5380
  1182
slouken@3685
  1183
SDL_Window *
slouken@1895
  1184
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1185
{
slouken@3685
  1186
    SDL_Window *window;
slouken@0
  1187
slouken@2753
  1188
    if (!_this) {
slouken@3417
  1189
        /* Initialize the video system if needed */
slouken@5123
  1190
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1191
            return NULL;
slouken@3417
  1192
        }
slouken@2753
  1193
    }
slouken@5249
  1194
slouken@6266
  1195
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1196
    if (w < 1) {
slouken@6266
  1197
        w = 1;
slouken@6266
  1198
    }
slouken@6266
  1199
    if (h < 1) {
slouken@6266
  1200
        h = 1;
slouken@6266
  1201
    }
slouken@6266
  1202
slouken@5249
  1203
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1204
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1205
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1206
#endif
slouken@3057
  1207
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1208
        if (!_this->GL_CreateContext) {
slouken@3057
  1209
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1210
            return NULL;
slouken@3057
  1211
        }
slouken@6611
  1212
        if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6611
  1213
            return NULL;
slouken@6611
  1214
        }
slouken@2753
  1215
    }
slouken@3685
  1216
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@7399
  1217
    if (!window) {
slouken@7399
  1218
        SDL_OutOfMemory();
slouken@7399
  1219
        return NULL;
slouken@7399
  1220
    }
slouken@3695
  1221
    window->magic = &_this->window_magic;
slouken@3685
  1222
    window->id = _this->next_object_id++;
slouken@3685
  1223
    window->x = x;
slouken@3685
  1224
    window->y = y;
slouken@3685
  1225
    window->w = w;
slouken@3685
  1226
    window->h = h;
slouken@5380
  1227
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1228
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1229
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1230
        int displayIndex;
slouken@5380
  1231
        SDL_Rect bounds;
slouken@5380
  1232
slouken@5380
  1233
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1234
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1235
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1236
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1237
        }
slouken@5380
  1238
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1239
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1240
        }
slouken@5380
  1241
    }
slouken@5380
  1242
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1243
    window->brightness = 1.0f;
slouken@5246
  1244
    window->next = _this->windows;
slouken@5246
  1245
    if (_this->windows) {
slouken@5246
  1246
        _this->windows->prev = window;
slouken@3693
  1247
    }
slouken@5246
  1248
    _this->windows = window;
slouken@3685
  1249
slouken@3685
  1250
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1251
        SDL_DestroyWindow(window);
slouken@3685
  1252
        return NULL;
slouken@3685
  1253
    }
slouken@0
  1254
slouken@2753
  1255
    if (title) {
slouken@3685
  1256
        SDL_SetWindowTitle(window, title);
slouken@2753
  1257
    }
slouken@5380
  1258
    SDL_FinishWindowCreation(window, flags);
slouken@7191
  1259
slouken@6063
  1260
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1261
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1262
slouken@3685
  1263
    return window;
slouken@1895
  1264
}
slouken@0
  1265
slouken@3685
  1266
SDL_Window *
slouken@1895
  1267
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1268
{
slouken@3685
  1269
    SDL_Window *window;
slouken@0
  1270
slouken@2753
  1271
    if (!_this) {
slouken@2753
  1272
        SDL_UninitializedVideo();
slouken@3685
  1273
        return NULL;
slouken@3685
  1274
    }
slouken@3685
  1275
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@7399
  1276
    if (!window) {
slouken@7399
  1277
        SDL_OutOfMemory();
slouken@7399
  1278
        return NULL;
slouken@7399
  1279
    }
slouken@3695
  1280
    window->magic = &_this->window_magic;
slouken@3685
  1281
    window->id = _this->next_object_id++;
slouken@3685
  1282
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1283
    window->brightness = 1.0f;
slouken@5246
  1284
    window->next = _this->windows;
slouken@5246
  1285
    if (_this->windows) {
slouken@5246
  1286
        _this->windows->prev = window;
slouken@3693
  1287
    }
slouken@5246
  1288
    _this->windows = window;
slouken@1895
  1289
slouken@2753
  1290
    if (!_this->CreateWindowFrom ||
slouken@3685
  1291
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1292
        SDL_DestroyWindow(window);
slouken@3685
  1293
        return NULL;
slouken@3685
  1294
    }
slouken@3685
  1295
    return window;
slouken@1895
  1296
}
slouken@1895
  1297
slouken@1924
  1298
int
slouken@1928
  1299
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1300
{
slouken@2753
  1301
    char *title = window->title;
slouken@7523
  1302
    SDL_Surface *icon = window->icon;
slouken@1956
  1303
slouken@2753
  1304
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
icculus@7037
  1305
        return SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1306
    }
slouken@3057
  1307
slouken@3057
  1308
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1309
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1310
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1311
    } else {
slouken@3057
  1312
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1313
    }
slouken@3057
  1314
slouken@5249
  1315
    /* Restore video mode, etc. */
slouken@5305
  1316
    SDL_HideWindow(window);
slouken@5249
  1317
slouken@5249
  1318
    /* Tear down the old native window */
slouken@5249
  1319
    if (window->surface) {
slouken@5288
  1320
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1321
        SDL_FreeSurface(window->surface);
slouken@5249
  1322
    }
slouken@5249
  1323
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1324
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1325
    }
slouken@3057
  1326
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1327
        _this->DestroyWindow(_this, window);
slouken@2753
  1328
    }
slouken@3057
  1329
slouken@5249
  1330
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1331
        if (flags & SDL_WINDOW_OPENGL) {
slouken@6775
  1332
            if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6775
  1333
                return -1;
slouken@6775
  1334
            }
slouken@5249
  1335
        } else {
slouken@5249
  1336
            SDL_GL_UnloadLibrary();
slouken@5249
  1337
        }
slouken@5249
  1338
    }
slouken@5249
  1339
slouken@2753
  1340
    window->title = NULL;
slouken@7523
  1341
    window->icon = NULL;
slouken@5380
  1342
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1343
slouken@3057
  1344
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1345
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1346
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1347
                SDL_GL_UnloadLibrary();
slouken@3057
  1348
            }
slouken@3057
  1349
            return -1;
slouken@3057
  1350
        }
slouken@2753
  1351
    }
slouken@3057
  1352
slouken@2753
  1353
    if (title) {
slouken@3685
  1354
        SDL_SetWindowTitle(window, title);
slouken@2753
  1355
        SDL_free(title);
slouken@2753
  1356
    }
slouken@7523
  1357
    if (icon) {
slouken@7523
  1358
        SDL_SetWindowIcon(window, icon);
slouken@7523
  1359
        SDL_FreeSurface(icon);
slouken@7523
  1360
    }
slouken@5380
  1361
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1362
slouken@2753
  1363
    return 0;
slouken@1924
  1364
}
slouken@1924
  1365
slouken@1895
  1366
Uint32
slouken@3685
  1367
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1368
{
slouken@3695
  1369
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1370
slouken@3685
  1371
    return window->id;
slouken@3685
  1372
}
slouken@3685
  1373
slouken@3685
  1374
SDL_Window *
slouken@3685
  1375
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1376
{
slouken@3685
  1377
    SDL_Window *window;
slouken@3685
  1378
slouken@3685
  1379
    if (!_this) {
slouken@3685
  1380
        return NULL;
slouken@3685
  1381
    }
slouken@5246
  1382
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1383
        if (window->id == id) {
slouken@5246
  1384
            return window;
slouken@3685
  1385
        }
slouken@3685
  1386
    }
slouken@3685
  1387
    return NULL;
slouken@3685
  1388
}
slouken@3685
  1389
slouken@3685
  1390
Uint32
slouken@3685
  1391
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1392
{
slouken@3695
  1393
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1394
slouken@2753
  1395
    return window->flags;
slouken@1895
  1396
}
slouken@1895
  1397
slouken@1895
  1398
void
slouken@3685
  1399
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1400
{
slouken@3695
  1401
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1402
slouken@3695
  1403
    if (title == window->title) {
slouken@2753
  1404
        return;
slouken@2753
  1405
    }
slouken@7719
  1406
    SDL_free(window->title);
slouken@4871
  1407
    if (title && *title) {
slouken@2753
  1408
        window->title = SDL_strdup(title);
slouken@2753
  1409
    } else {
slouken@2753
  1410
        window->title = NULL;
slouken@2753
  1411
    }
slouken@1956
  1412
slouken@2753
  1413
    if (_this->SetWindowTitle) {
slouken@2753
  1414
        _this->SetWindowTitle(_this, window);
slouken@2753
  1415
    }
slouken@1895
  1416
}
slouken@1895
  1417
slouken@2753
  1418
const char *
slouken@3685
  1419
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1420
{
slouken@4872
  1421
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1422
slouken@4871
  1423
    return window->title ? window->title : "";
slouken@1895
  1424
}
slouken@1895
  1425
slouken@1895
  1426
void
slouken@3685
  1427
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1428
{
slouken@3695
  1429
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1430
slouken@5375
  1431
    if (!icon) {
slouken@5375
  1432
        return;
slouken@5375
  1433
    }
slouken@5375
  1434
slouken@7720
  1435
    SDL_FreeSurface(window->icon);
slouken@7523
  1436
slouken@7523
  1437
    /* Convert the icon into ARGB8888 */
slouken@7523
  1438
    window->icon = SDL_ConvertSurfaceFormat(icon, SDL_PIXELFORMAT_ARGB8888, 0);
slouken@7523
  1439
    if (!window->icon) {
slouken@7523
  1440
        return;
slouken@7523
  1441
    }
slouken@7523
  1442
slouken@2967
  1443
    if (_this->SetWindowIcon) {
slouken@7523
  1444
        _this->SetWindowIcon(_this, window, window->icon);
slouken@2967
  1445
    }
slouken@2967
  1446
}
slouken@2967
  1447
slouken@5165
  1448
void*
slouken@5165
  1449
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1450
{
slouken@5165
  1451
    SDL_WindowUserData *prev, *data;
slouken@3695
  1452
slouken@5165
  1453
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@7191
  1454
aschiffler@7046
  1455
    /* Input validation */
aschiffler@7046
  1456
    if (name == NULL || SDL_strlen(name) == 0) {
aschiffler@7046
  1457
      SDL_InvalidParamError("name");
aschiffler@7046
  1458
      return NULL;
aschiffler@7046
  1459
    }
slouken@5165
  1460
slouken@5165
  1461
    /* See if the named data already exists */
slouken@5165
  1462
    prev = NULL;
slouken@5165
  1463
    for (data = window->data; data; prev = data, data = data->next) {
aschiffler@7046
  1464
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1465
            void *last_value = data->data;
slouken@5165
  1466
slouken@5165
  1467
            if (userdata) {
slouken@5165
  1468
                /* Set the new value */
slouken@5165
  1469
                data->data = userdata;
slouken@5165
  1470
            } else {
slouken@5165
  1471
                /* Delete this value */
slouken@5165
  1472
                if (prev) {
slouken@5165
  1473
                    prev->next = data->next;
slouken@5165
  1474
                } else {
slouken@5165
  1475
                    window->data = data->next;
slouken@5165
  1476
                }
slouken@5165
  1477
                SDL_free(data->name);
slouken@5165
  1478
                SDL_free(data);
slouken@5165
  1479
            }
slouken@5165
  1480
            return last_value;
slouken@5165
  1481
        }
slouken@5165
  1482
    }
slouken@5165
  1483
slouken@5165
  1484
    /* Add new data to the window */
slouken@5165
  1485
    if (userdata) {
slouken@5165
  1486
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1487
        data->name = SDL_strdup(name);
slouken@5165
  1488
        data->data = userdata;
slouken@5165
  1489
        data->next = window->data;
slouken@5165
  1490
        window->data = data;
slouken@5165
  1491
    }
slouken@5165
  1492
    return NULL;
slouken@1895
  1493
}
slouken@1895
  1494
slouken@2753
  1495
void *
slouken@5165
  1496
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1497
{
slouken@5165
  1498
    SDL_WindowUserData *data;
slouken@5165
  1499
slouken@3695
  1500
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1501
aschiffler@7046
  1502
    /* Input validation */
aschiffler@7046
  1503
    if (name == NULL || SDL_strlen(name) == 0) {
aschiffler@7046
  1504
      SDL_InvalidParamError("name");
aschiffler@7046
  1505
      return NULL;
aschiffler@7046
  1506
    }
aschiffler@7046
  1507
slouken@5165
  1508
    for (data = window->data; data; data = data->next) {
aschiffler@7046
  1509
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1510
            return data->data;
slouken@5165
  1511
        }
slouken@5165
  1512
    }
slouken@5165
  1513
    return NULL;
slouken@1895
  1514
}
slouken@1895
  1515
slouken@1895
  1516
void
slouken@3685
  1517
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1518
{
slouken@3695
  1519
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1520
slouken@7195
  1521
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1522
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@7195
  1523
        int displayIndex;
slouken@7195
  1524
        SDL_Rect bounds;
slouken@7195
  1525
slouken@7195
  1526
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@7195
  1527
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@7195
  1528
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@7195
  1529
            x = bounds.x + (bounds.w - window->w) / 2;
slouken@7195
  1530
        }
slouken@7195
  1531
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1532
            y = bounds.y + (bounds.h - window->h) / 2;
slouken@7195
  1533
        }
slouken@7195
  1534
    }
slouken@7195
  1535
slouken@5305
  1536
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1537
        window->x = x;
slouken@2753
  1538
    }
slouken@5305
  1539
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1540
        window->y = y;
slouken@2753
  1541
    }
slouken@7195
  1542
slouken@5246
  1543
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1544
        if (_this->SetWindowPosition) {
slouken@5246
  1545
            _this->SetWindowPosition(_this, window);
slouken@5246
  1546
        }
slouken@5246
  1547
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1548
    }
slouken@1895
  1549
}
slouken@1895
  1550
slouken@1895
  1551
void
slouken@3685
  1552
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1553
{
slouken@5246
  1554
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1555
slouken@5246
  1556
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1557
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
aschiffler@6956
  1558
        if (x) {
aschiffler@6956
  1559
            *x = 0;
aschiffler@6956
  1560
        }
aschiffler@6956
  1561
        if (y) {
aschiffler@6956
  1562
            *y = 0;
aschiffler@6956
  1563
        }
slouken@5246
  1564
    } else {
slouken@5242
  1565
        if (x) {
slouken@5242
  1566
            *x = window->x;
slouken@5242
  1567
        }
slouken@5242
  1568
        if (y) {
slouken@5242
  1569
            *y = window->y;
slouken@5242
  1570
        }
slouken@2753
  1571
    }
slouken@1895
  1572
}
slouken@1895
  1573
slouken@1895
  1574
void
icculus@6422
  1575
SDL_SetWindowBordered(SDL_Window * window, SDL_bool bordered)
icculus@6422
  1576
{
icculus@6422
  1577
    CHECK_WINDOW_MAGIC(window, );
icculus@6422
  1578
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
icculus@6422
  1579
        const int want = (bordered != SDL_FALSE);  /* normalize the flag. */
icculus@6422
  1580
        const int have = ((window->flags & SDL_WINDOW_BORDERLESS) == 0);
icculus@6422
  1581
        if ((want != have) && (_this->SetWindowBordered)) {
icculus@6422
  1582
            if (want) {
icculus@6422
  1583
                window->flags &= ~SDL_WINDOW_BORDERLESS;
icculus@6422
  1584
            } else {
icculus@6422
  1585
                window->flags |= SDL_WINDOW_BORDERLESS;
icculus@6422
  1586
            }
icculus@6422
  1587
            _this->SetWindowBordered(_this, window, (SDL_bool) want);
icculus@6422
  1588
        }
icculus@6422
  1589
    }
icculus@6422
  1590
}
icculus@6422
  1591
icculus@6422
  1592
void
slouken@3685
  1593
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1594
{
slouken@3695
  1595
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1596
    if (w <= 0) {
aschiffler@6984
  1597
        SDL_InvalidParamError("w");
aschiffler@6984
  1598
        return;
aschiffler@6984
  1599
    }
aschiffler@6984
  1600
    if (h <= 0) {
aschiffler@6984
  1601
        SDL_InvalidParamError("h");
aschiffler@6984
  1602
        return;
aschiffler@6984
  1603
    }
slouken@3695
  1604
slouken@5249
  1605
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1606
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1607
        window->w = w;
slouken@5276
  1608
        window->h = h;
slouken@5249
  1609
        if (_this->SetWindowSize) {
slouken@5249
  1610
            _this->SetWindowSize(_this, window);
slouken@5249
  1611
        }
slouken@5276
  1612
        if (window->w == w && window->h == h) {
slouken@5276
  1613
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1614
            SDL_OnWindowResized(window);
slouken@5276
  1615
        }
slouken@2753
  1616
    }
slouken@1895
  1617
}
slouken@1895
  1618
slouken@1895
  1619
void
slouken@3685
  1620
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1621
{
aschiffler@6984
  1622
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1623
    if (w) {
aschiffler@6984
  1624
        *w = window->w;
slouken@5246
  1625
    }
aschiffler@6984
  1626
    if (h) {
stopiccot@6681
  1627
        *h = window->h;
slouken@7191
  1628
    }
stopiccot@6681
  1629
}
stopiccot@6681
  1630
stopiccot@6681
  1631
void
stopiccot@6681
  1632
SDL_SetWindowMinimumSize(SDL_Window * window, int min_w, int min_h)
stopiccot@6681
  1633
{
stopiccot@6681
  1634
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1635
    if (min_w <= 0) {
aschiffler@6984
  1636
        SDL_InvalidParamError("min_w");
aschiffler@6984
  1637
        return;
aschiffler@6984
  1638
    }
aschiffler@6984
  1639
    if (min_h <= 0) {
aschiffler@6984
  1640
        SDL_InvalidParamError("min_h");
aschiffler@6984
  1641
        return;
aschiffler@6984
  1642
    }
slouken@7191
  1643
stopiccot@6681
  1644
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
stopiccot@6681
  1645
        window->min_w = min_w;
stopiccot@6681
  1646
        window->min_h = min_h;
stopiccot@6681
  1647
        if (_this->SetWindowMinimumSize) {
stopiccot@6681
  1648
            _this->SetWindowMinimumSize(_this, window);
slouken@2849
  1649
        }
stopiccot@6681
  1650
        /* Ensure that window is not smaller than minimal size */
stopiccot@6681
  1651
        SDL_SetWindowSize(window, SDL_max(window->w, window->min_w), SDL_max(window->h, window->min_h));
stopiccot@6681
  1652
    }
stopiccot@6681
  1653
}
stopiccot@6681
  1654
stopiccot@6681
  1655
void
stopiccot@6681
  1656
SDL_GetWindowMinimumSize(SDL_Window * window, int *min_w, int *min_h)
stopiccot@6681
  1657
{
aschiffler@6984
  1658
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1659
    if (min_w) {
aschiffler@6984
  1660
        *min_w = window->min_w;
stopiccot@6681
  1661
    }
aschiffler@6984
  1662
    if (min_h) {
stopiccot@6681
  1663
        *min_h = window->min_h;
slouken@2753
  1664
    }
slouken@1895
  1665
}
slouken@1895
  1666
slouken@1895
  1667
void
slouken@6788
  1668
SDL_SetWindowMaximumSize(SDL_Window * window, int max_w, int max_h)
slouken@6788
  1669
{
slouken@6788
  1670
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1671
    if (max_w <= 0) {
aschiffler@6984
  1672
        SDL_InvalidParamError("max_w");
aschiffler@6984
  1673
        return;
aschiffler@6984
  1674
    }
aschiffler@6984
  1675
    if (max_h <= 0) {
aschiffler@6984
  1676
        SDL_InvalidParamError("max_h");
aschiffler@6984
  1677
        return;
aschiffler@6984
  1678
    }
slouken@7191
  1679
slouken@6788
  1680
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@6788
  1681
        window->max_w = max_w;
slouken@6788
  1682
        window->max_h = max_h;
slouken@6788
  1683
        if (_this->SetWindowMaximumSize) {
slouken@6788
  1684
            _this->SetWindowMaximumSize(_this, window);
slouken@6788
  1685
        }
slouken@6788
  1686
        /* Ensure that window is not larger than maximal size */
slouken@6788
  1687
        SDL_SetWindowSize(window, SDL_min(window->w, window->max_w), SDL_min(window->h, window->max_h));
slouken@6788
  1688
    }
slouken@6788
  1689
}
slouken@6788
  1690
slouken@6788
  1691
void
slouken@6788
  1692
SDL_GetWindowMaximumSize(SDL_Window * window, int *max_w, int *max_h)
slouken@6788
  1693
{
aschiffler@6984
  1694
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1695
    if (max_w) {
aschiffler@6984
  1696
        *max_w = window->max_w;
slouken@6788
  1697
    }
aschiffler@6984
  1698
    if (max_h) {
slouken@6788
  1699
        *max_h = window->max_h;
slouken@6788
  1700
    }
slouken@6788
  1701
}
slouken@6788
  1702
slouken@6788
  1703
void
slouken@3685
  1704
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1705
{
slouken@3695
  1706
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1707
slouken@3695
  1708
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1709
        return;
slouken@2753
  1710
    }
slouken@1895
  1711
slouken@2753
  1712
    if (_this->ShowWindow) {
slouken@2753
  1713
        _this->ShowWindow(_this, window);
slouken@2753
  1714
    }
slouken@3685
  1715
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1716
}
slouken@1895
  1717
slouken@1895
  1718
void
slouken@3685
  1719
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1720
{
slouken@3695
  1721
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1722
slouken@3695
  1723
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1724
        return;
slouken@2753
  1725
    }
slouken@1895
  1726
slouken@5404
  1727
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1728
slouken@2753
  1729
    if (_this->HideWindow) {
slouken@2753
  1730
        _this->HideWindow(_this, window);
slouken@2753
  1731
    }
slouken@3685
  1732
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1733
}
slouken@1895
  1734
slouken@1895
  1735
void
slouken@3685
  1736
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1737
{
slouken@3695
  1738
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1739
slouken@3695
  1740
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1741
        return;
slouken@2753
  1742
    }
slouken@2753
  1743
    if (_this->RaiseWindow) {
slouken@2753
  1744
        _this->RaiseWindow(_this, window);
slouken@2753
  1745
    }
slouken@1895
  1746
}
slouken@1895
  1747
slouken@1895
  1748
void
slouken@3685
  1749
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1750
{
slouken@3695
  1751
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1752
slouken@3695
  1753
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1754
        return;
slouken@2753
  1755
    }
slouken@1895
  1756
gabomdq@7662
  1757
    /* !!! FIXME: should this check if the window is resizable? */
icculus@7566
  1758
slouken@2753
  1759
    if (_this->MaximizeWindow) {
slouken@2753
  1760
        _this->MaximizeWindow(_this, window);
slouken@2753
  1761
    }
slouken@1895
  1762
}
slouken@1895
  1763
slouken@1895
  1764
void
slouken@3685
  1765
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1766
{
slouken@3695
  1767
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1768
slouken@3695
  1769
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1770
        return;
slouken@2753
  1771
    }
slouken@1895
  1772
slouken@5404
  1773
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1774
slouken@2753
  1775
    if (_this->MinimizeWindow) {
slouken@2753
  1776
        _this->MinimizeWindow(_this, window);
slouken@2753
  1777
    }
slouken@1895
  1778
}
slouken@1895
  1779
slouken@1895
  1780
void
slouken@3685
  1781
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1782
{
slouken@3695
  1783
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1784
slouken@3695
  1785
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1786
        return;
slouken@2753
  1787
    }
slouken@1895
  1788
slouken@2753
  1789
    if (_this->RestoreWindow) {
slouken@2753
  1790
        _this->RestoreWindow(_this, window);
slouken@2753
  1791
    }
slouken@1895
  1792
}
slouken@1895
  1793
slouken@6755
  1794
#define FULLSCREEN_MASK ( SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN )
slouken@1895
  1795
int
slouken@6755
  1796
SDL_SetWindowFullscreen(SDL_Window * window, Uint32 flags)
slouken@1895
  1797
{
slouken@3695
  1798
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1799
slouken@7191
  1800
    flags &= FULLSCREEN_MASK;
slouken@7191
  1801
slouken@6755
  1802
    if ( flags == (window->flags & FULLSCREEN_MASK) ) {
slouken@2753
  1803
        return 0;
slouken@2753
  1804
    }
slouken@7191
  1805
slouken@7191
  1806
    /* clear the previous flags and OR in the new ones */
slouken@7191
  1807
    window->flags &= ~FULLSCREEN_MASK;
slouken@6755
  1808
    window->flags |= flags;
slouken@6755
  1809
slouken@5404
  1810
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1811
slouken@2753
  1812
    return 0;
slouken@1895
  1813
}
slouken@1895
  1814
slouken@5166
  1815
static SDL_Surface *
slouken@5166
  1816
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1817
{
slouken@5166
  1818
    Uint32 format;
slouken@5166
  1819
    void *pixels;
slouken@5166
  1820
    int pitch;
slouken@5166
  1821
    int bpp;
slouken@5166
  1822
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1823
slouken@5166
  1824
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1825
        return NULL;
slouken@5166
  1826
    }
slouken@5166
  1827
slouken@5166
  1828
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1829
        return NULL;
slouken@5166
  1830
    }
slouken@5166
  1831
slouken@5166
  1832
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1833
        return NULL;
slouken@5166
  1834
    }
slouken@5166
  1835
slouken@5166
  1836
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1837
}
slouken@5166
  1838
slouken@5166
  1839
SDL_Surface *
slouken@5166
  1840
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1841
{
slouken@5166
  1842
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1843
slouken@5172
  1844
    if (!window->surface_valid) {
slouken@5172
  1845
        if (window->surface) {
slouken@5288
  1846
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1847
            SDL_FreeSurface(window->surface);
slouken@5172
  1848
        }
slouken@5166
  1849
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1850
        if (window->surface) {
slouken@5172
  1851
            window->surface_valid = SDL_TRUE;
slouken@5288
  1852
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1853
        }
slouken@5166
  1854
    }
slouken@5166
  1855
    return window->surface;
slouken@5166
  1856
}
slouken@5166
  1857
slouken@5166
  1858
int
slouken@5166
  1859
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1860
{
slouken@5166
  1861
    SDL_Rect full_rect;
slouken@5166
  1862
slouken@5166
  1863
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1864
slouken@5166
  1865
    full_rect.x = 0;
slouken@5166
  1866
    full_rect.y = 0;
slouken@5166
  1867
    full_rect.w = window->w;
slouken@5166
  1868
    full_rect.h = window->h;
slouken@5297
  1869
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1870
}
slouken@5166
  1871
slouken@5166
  1872
int
slouken@7014
  1873
SDL_UpdateWindowSurfaceRects(SDL_Window * window, const SDL_Rect * rects,
slouken@5297
  1874
                             int numrects)
slouken@5166
  1875
{
slouken@5166
  1876
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1877
slouken@5172
  1878
    if (!window->surface_valid) {
icculus@7037
  1879
        return SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1880
    }
slouken@5166
  1881
slouken@5297
  1882
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1883
}
slouken@5166
  1884
slouken@5466
  1885
int
slouken@5466
  1886
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1887
{
slouken@5466
  1888
    Uint16 ramp[256];
slouken@5466
  1889
    int status;
slouken@5466
  1890
slouken@5466
  1891
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1892
slouken@5466
  1893
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1894
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1895
    if (status == 0) {
slouken@5466
  1896
        window->brightness = brightness;
slouken@5466
  1897
    }
slouken@5466
  1898
    return status;
slouken@5466
  1899
}
slouken@5466
  1900
slouken@5466
  1901
float
slouken@5466
  1902
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1903
{
slouken@5466
  1904
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1905
slouken@5466
  1906
    return window->brightness;
slouken@5466
  1907
}
slouken@5466
  1908
slouken@5466
  1909
int
slouken@5466
  1910
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1911
                                            const Uint16 * green,
slouken@5466
  1912
                                            const Uint16 * blue)
slouken@5466
  1913
{
slouken@5466
  1914
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1915
slouken@5466
  1916
    if (!_this->SetWindowGammaRamp) {
icculus@7037
  1917
        return SDL_Unsupported();
slouken@5466
  1918
    }
slouken@5466
  1919
slouken@5466
  1920
    if (!window->gamma) {
slouken@5466
  1921
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1922
            return -1;
slouken@5466
  1923
        }
slouken@5466
  1924
    }
slouken@5466
  1925
slouken@5466
  1926
    if (red) {
slouken@5466
  1927
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1928
    }
slouken@5466
  1929
    if (green) {
slouken@5466
  1930
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1931
    }
slouken@5466
  1932
    if (blue) {
slouken@5466
  1933
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1934
    }
slouken@5466
  1935
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1936
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1937
    } else {
slouken@5466
  1938
        return 0;
slouken@5466
  1939
    }
slouken@5466
  1940
}
slouken@5466
  1941
slouken@5466
  1942
int
slouken@5466
  1943
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1944
                                            Uint16 * green,
slouken@5466
  1945
                                            Uint16 * blue)
slouken@5466
  1946
{
slouken@5466
  1947
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1948
slouken@5466
  1949
    if (!window->gamma) {
slouken@5466
  1950
        int i;
slouken@5466
  1951
slouken@5466
  1952
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1953
        if (!window->gamma) {
icculus@7037
  1954
            return SDL_OutOfMemory();
slouken@5466
  1955
        }
slouken@5466
  1956
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1957
slouken@5466
  1958
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1959
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1960
                return -1;
slouken@5466
  1961
            }
slouken@5466
  1962
        } else {
slouken@5466
  1963
            /* Create an identity gamma ramp */
slouken@5466
  1964
            for (i = 0; i < 256; ++i) {
slouken@5466
  1965
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1966
slouken@5466
  1967
                window->gamma[0*256+i] = value;
slouken@5466
  1968
                window->gamma[1*256+i] = value;
slouken@5466
  1969
                window->gamma[2*256+i] = value;
slouken@5466
  1970
            }
slouken@5466
  1971
        }
slouken@5466
  1972
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1973
    }
slouken@5466
  1974
slouken@5466
  1975
    if (red) {
slouken@5466
  1976
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1977
    }
slouken@5466
  1978
    if (green) {
slouken@5466
  1979
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1980
    }
slouken@5466
  1981
    if (blue) {
slouken@5466
  1982
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1983
    }
slouken@5466
  1984
    return 0;
slouken@5466
  1985
}
slouken@5466
  1986
slouken@6662
  1987
void
slouken@2876
  1988
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1989
{
slouken@6662
  1990
    if (_this->SetWindowGrab) {
slouken@6662
  1991
        SDL_bool grabbed;
slouken@6662
  1992
        if ((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@6662
  1993
            (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@6662
  1994
            grabbed = SDL_TRUE;
slouken@6662
  1995
        } else {
slouken@6662
  1996
            grabbed = SDL_FALSE;
slouken@6662
  1997
        }
slouken@6662
  1998
        _this->SetWindowGrab(_this, window, grabbed);
slouken@2753
  1999
    }
slouken@1895
  2000
}
slouken@1895
  2001
slouken@5403
  2002
void
slouken@5403
  2003
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  2004
{
slouken@5403
  2005
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  2006
slouken@5404
  2007
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  2008
        return;
slouken@5403
  2009
    }
slouken@5403
  2010
    if (grabbed) {
slouken@5403
  2011
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  2012
    } else {
slouken@5403
  2013
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  2014
    }
slouken@5403
  2015
    SDL_UpdateWindowGrab(window);
slouken@5403
  2016
}
slouken@5403
  2017
slouken@5403
  2018
SDL_bool
slouken@3685
  2019
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  2020
{
slouken@5466
  2021
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  2022
slouken@2753
  2023
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  2024
}
slouken@1895
  2025
slouken@1895
  2026
void
slouken@1895
  2027
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  2028
{
slouken@5404
  2029
    SDL_OnWindowRestored(window);
slouken@1895
  2030
}
slouken@1895
  2031
slouken@1895
  2032
void
slouken@1895
  2033
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  2034
{
slouken@5404
  2035
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  2036
}
slouken@1895
  2037
slouken@1895
  2038
void
slouken@5166
  2039
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  2040
{
slouken@5172
  2041
    window->surface_valid = SDL_FALSE;
slouken@5276
  2042
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  2043
}
slouken@5166
  2044
slouken@5166
  2045
void
slouken@3502
  2046
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  2047
{
slouken@5404
  2048
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  2049
}
slouken@3502
  2050
slouken@3502
  2051
void
slouken@3502
  2052
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  2053
{
slouken@3685
  2054
    SDL_RaiseWindow(window);
slouken@5404
  2055
slouken@5404
  2056
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  2057
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  2058
    }
slouken@3502
  2059
}
slouken@3502
  2060
slouken@3502
  2061
void
jorgen@7089
  2062
SDL_OnWindowEnter(SDL_Window * window)
jorgen@7089
  2063
{
jorgen@7089
  2064
    if (_this->OnWindowEnter) {
jorgen@7089
  2065
        _this->OnWindowEnter(_this, window);
jorgen@7089
  2066
    }
jorgen@7089
  2067
}
jorgen@7089
  2068
jorgen@7089
  2069
void
jorgen@7089
  2070
SDL_OnWindowLeave(SDL_Window * window)
jorgen@7089
  2071
{
jorgen@7089
  2072
}
jorgen@7089
  2073
jorgen@7089
  2074
void
slouken@1895
  2075
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  2076
{
jorgen@7107
  2077
    SDL_Mouse *mouse = SDL_GetMouse();
jorgen@7107
  2078
slouken@5466
  2079
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2080
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  2081
    }
slouken@5466
  2082
jorgen@7107
  2083
    if (mouse && mouse->relative_mode) {
jorgen@7107
  2084
        SDL_SetMouseFocus(window);
jorgen@7107
  2085
        SDL_WarpMouseInWindow(window, window->w/2, window->h/2);
jorgen@7107
  2086
    }
jorgen@7107
  2087
slouken@6662
  2088
    SDL_UpdateWindowGrab(window);
slouken@1895
  2089
}
slouken@1895
  2090
slouken@6755
  2091
static SDL_bool ShouldMinimizeOnFocusLoss()
slouken@6755
  2092
{
slouken@7191
  2093
    const char *hint = SDL_GetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS);
slouken@7191
  2094
    if (hint) {
slouken@7191
  2095
        if (*hint == '0') {
slouken@7191
  2096
            return SDL_FALSE;
slouken@7191
  2097
        } else {
slouken@7191
  2098
            return SDL_TRUE;
slouken@7191
  2099
        }
slouken@7191
  2100
    }
slouken@7191
  2101
    return SDL_TRUE;
slouken@6755
  2102
}
slouken@6755
  2103
slouken@1895
  2104
void
slouken@1895
  2105
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  2106
{
slouken@5466
  2107
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2108
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  2109
    }
slouken@3512
  2110
slouken@6662
  2111
    SDL_UpdateWindowGrab(window);
slouken@5466
  2112
jorgen@7269
  2113
    /* If we're fullscreen and lose focus, minimize unless the hint tells us otherwise */
icculus@7565
  2114
    if ((window->flags & SDL_WINDOW_FULLSCREEN) && ShouldMinimizeOnFocusLoss()) {
icculus@7565
  2115
        SDL_MinimizeWindow(window);
slouken@5466
  2116
    }
slouken@1895
  2117
}
slouken@1895
  2118
slouken@3685
  2119
SDL_Window *
slouken@1895
  2120
SDL_GetFocusWindow(void)
slouken@1895
  2121
{
slouken@3685
  2122
    SDL_Window *window;
slouken@1895
  2123
slouken@2753
  2124
    if (!_this) {
slouken@3685
  2125
        return NULL;
slouken@3685
  2126
    }
slouken@5246
  2127
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  2128
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  2129
            return window;
slouken@2753
  2130
        }
slouken@2753
  2131
    }
slouken@3685
  2132
    return NULL;
slouken@1895
  2133
}
slouken@1895
  2134
slouken@1895
  2135
void
slouken@3685
  2136
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  2137
{
slouken@3685
  2138
    SDL_VideoDisplay *display;
slouken@3685
  2139
slouken@3695
  2140
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  2141
slouken@6214
  2142
    /* Restore video mode, etc. */
slouken@6214
  2143
    SDL_HideWindow(window);
slouken@6214
  2144
slouken@6214
  2145
    /* Make sure this window no longer has focus */
slouken@6214
  2146
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  2147
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  2148
    }
slouken@6214
  2149
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  2150
        SDL_SetMouseFocus(NULL);
slouken@6214
  2151
    }
slouken@6214
  2152
icculus@5563
  2153
    /* make no context current if this is the current context window. */
icculus@5563
  2154
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  2155
        if (_this->current_glwin == window) {
slouken@6496
  2156
            SDL_GL_MakeCurrent(window, NULL);
icculus@5563
  2157
        }
icculus@5563
  2158
    }
icculus@5563
  2159
slouken@5169
  2160
    if (window->surface) {
slouken@5288
  2161
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  2162
        SDL_FreeSurface(window->surface);
slouken@5169
  2163
    }
slouken@5166
  2164
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  2165
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  2166
    }
slouken@3685
  2167
    if (_this->DestroyWindow) {
slouken@3685
  2168
        _this->DestroyWindow(_this, window);
slouken@3685
  2169
    }
slouken@3685
  2170
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  2171
        SDL_GL_UnloadLibrary();
slouken@3685
  2172
    }
slouken@3685
  2173
slouken@5246
  2174
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  2175
    if (display->fullscreen_window == window) {
slouken@5246
  2176
        display->fullscreen_window = NULL;
slouken@5246
  2177
    }
slouken@5246
  2178
slouken@4901
  2179
    /* Now invalidate magic */
slouken@4897
  2180
    window->magic = NULL;
slouken@4897
  2181
slouken@5165
  2182
    /* Free memory associated with the window */
slouken@7719
  2183
    SDL_free(window->title);
slouken@7720
  2184
    SDL_FreeSurface(window->icon);
slouken@7719
  2185
    SDL_free(window->gamma);
slouken@5165
  2186
    while (window->data) {
slouken@5165
  2187
        SDL_WindowUserData *data = window->data;
slouken@5165
  2188
slouken@5165
  2189
        window->data = data->next;
slouken@5165
  2190
        SDL_free(data->name);
slouken@5165
  2191
        SDL_free(data);
slouken@5165
  2192
    }
slouken@5165
  2193
slouken@3685
  2194
    /* Unlink the window from the list */
slouken@3693
  2195
    if (window->next) {
slouken@3693
  2196
        window->next->prev = window->prev;
slouken@3693
  2197
    }
slouken@3685
  2198
    if (window->prev) {
slouken@3685
  2199
        window->prev->next = window->next;
slouken@3685
  2200
    } else {
slouken@5246
  2201
        _this->windows = window->next;
slouken@3685
  2202
    }
slouken@3685
  2203
slouken@3685
  2204
    SDL_free(window);
slouken@1895
  2205
}
slouken@1895
  2206
slouken@3025
  2207
SDL_bool
slouken@3025
  2208
SDL_IsScreenSaverEnabled()
slouken@3025
  2209
{
slouken@3025
  2210
    if (!_this) {
slouken@3025
  2211
        return SDL_TRUE;
slouken@3025
  2212
    }
slouken@3025
  2213
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2214
}
slouken@3025
  2215
slouken@3025
  2216
void
slouken@3025
  2217
SDL_EnableScreenSaver()
slouken@3025
  2218
{
slouken@3025
  2219
    if (!_this) {
slouken@3025
  2220
        return;
slouken@3025
  2221
    }
slouken@3025
  2222
    if (!_this->suspend_screensaver) {
slouken@3025
  2223
        return;
slouken@3025
  2224
    }
slouken@3025
  2225
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2226
    if (_this->SuspendScreenSaver) {
slouken@3025
  2227
        _this->SuspendScreenSaver(_this);
slouken@3025
  2228
    }
slouken@3025
  2229
}
slouken@3025
  2230
slouken@3025
  2231
void
slouken@3025
  2232
SDL_DisableScreenSaver()
slouken@3025
  2233
{
slouken@3025
  2234
    if (!_this) {
slouken@3025
  2235
        return;
slouken@3025
  2236
    }
slouken@3025
  2237
    if (_this->suspend_screensaver) {
slouken@3025
  2238
        return;
slouken@3025
  2239
    }
slouken@3025
  2240
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2241
    if (_this->SuspendScreenSaver) {
slouken@3025
  2242
        _this->SuspendScreenSaver(_this);
slouken@3025
  2243
    }
slouken@3025
  2244
}
slouken@3025
  2245
slouken@1895
  2246
void
slouken@1895
  2247
SDL_VideoQuit(void)
slouken@1895
  2248
{
slouken@2753
  2249
    int i, j;
slouken@1895
  2250
slouken@2753
  2251
    if (!_this) {
slouken@2753
  2252
        return;
slouken@2753
  2253
    }
slouken@5123
  2254
slouken@2753
  2255
    /* Halt event processing before doing anything else */
slouken@7360
  2256
    SDL_TouchQuit();
slouken@5123
  2257
    SDL_MouseQuit();
slouken@5123
  2258
    SDL_KeyboardQuit();
slouken@7360
  2259
    SDL_QuitSubSystem(SDL_INIT_EVENTS);
slouken@5123
  2260
slouken@3029
  2261
    SDL_EnableScreenSaver();
slouken@1895
  2262
slouken@2753
  2263
    /* Clean up the system video */
slouken@5246
  2264
    while (_this->windows) {
slouken@5246
  2265
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2266
    }
slouken@2753
  2267
    _this->VideoQuit(_this);
slouken@1895
  2268
icculus@7441
  2269
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  2270
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2271
        for (j = display->num_display_modes; j--;) {
slouken@7719
  2272
            SDL_free(display->display_modes[j].driverdata);
slouken@7719
  2273
            display->display_modes[j].driverdata = NULL;
slouken@2753
  2274
        }
slouken@7719
  2275
        SDL_free(display->display_modes);
slouken@7719
  2276
        display->display_modes = NULL;
slouken@7719
  2277
        SDL_free(display->desktop_mode.driverdata);
slouken@7719
  2278
        display->desktop_mode.driverdata = NULL;
slouken@7719
  2279
        SDL_free(display->driverdata);
slouken@7719
  2280
        display->driverdata = NULL;
slouken@2753
  2281
    }
slouken@2753
  2282
    if (_this->displays) {
slouken@6787
  2283
        for (i = 0; i < _this->num_displays; ++i) {
slouken@6787
  2284
            SDL_free(_this->displays[i].name);
slouken@6787
  2285
        }
slouken@2753
  2286
        SDL_free(_this->displays);
slouken@2753
  2287
        _this->displays = NULL;
slouken@6787
  2288
        _this->num_displays = 0;
slouken@2753
  2289
    }
slouken@7719
  2290
    SDL_free(_this->clipboard_text);
slouken@7719
  2291
    _this->clipboard_text = NULL;
slouken@2753
  2292
    _this->free(_this);
slouken@2753
  2293
    _this = NULL;
slouken@0
  2294
}
slouken@0
  2295
slouken@1895
  2296
int
slouken@1895
  2297
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2298
{
slouken@2753
  2299
    int retval;
slouken@0
  2300
slouken@2753
  2301
    if (!_this) {
icculus@7037
  2302
        return SDL_UninitializedVideo();
slouken@2753
  2303
    }
slouken@3057
  2304
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2305
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
icculus@7037
  2306
            return SDL_SetError("OpenGL library already loaded");
slouken@3057
  2307
        }
slouken@3057
  2308
        retval = 0;
slouken@3057
  2309
    } else {
slouken@3057
  2310
        if (!_this->GL_LoadLibrary) {
icculus@7037
  2311
            return  SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2312
        }
slouken@2753
  2313
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2314
    }
slouken@3057
  2315
    if (retval == 0) {
slouken@3057
  2316
        ++_this->gl_config.driver_loaded;
slouken@2753
  2317
    }
slouken@2753
  2318
    return (retval);
slouken@0
  2319
}
slouken@0
  2320
slouken@2753
  2321
void *
slouken@1895
  2322
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2323
{
slouken@2753
  2324
    void *func;
slouken@0
  2325
slouken@2753
  2326
    if (!_this) {
slouken@2753
  2327
        SDL_UninitializedVideo();
slouken@2753
  2328
        return NULL;
slouken@2753
  2329
    }
slouken@2753
  2330
    func = NULL;
slouken@2753
  2331
    if (_this->GL_GetProcAddress) {
slouken@2753
  2332
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2333
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2334
        } else {
slouken@2753
  2335
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2336
        }
slouken@2753
  2337
    } else {
slouken@2753
  2338
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2339
    }
slouken@2753
  2340
    return func;
slouken@0
  2341
}
slouken@0
  2342
slouken@3057
  2343
void
slouken@3057
  2344
SDL_GL_UnloadLibrary(void)
slouken@3057
  2345
{
slouken@3057
  2346
    if (!_this) {
slouken@3057
  2347
        SDL_UninitializedVideo();
slouken@3057
  2348
        return;
slouken@3057
  2349
    }
slouken@3057
  2350
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2351
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2352
            return;
slouken@3057
  2353
        }
slouken@3057
  2354
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2355
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2356
        }
slouken@3057
  2357
    }
slouken@3057
  2358
}
slouken@3057
  2359
icculus@7210
  2360
static __inline__ SDL_bool
icculus@7210
  2361
isAtLeastGL3(const char *verstr)
icculus@7210
  2362
{
icculus@7210
  2363
    return ( verstr && (SDL_atoi(verstr) >= 3) );
icculus@7210
  2364
}
icculus@7210
  2365
slouken@1926
  2366
SDL_bool
slouken@1926
  2367
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2368
{
slouken@5209
  2369
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2370
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2371
    const char *extensions;
slouken@2753
  2372
    const char *start;
slouken@2753
  2373
    const char *where, *terminator;
slouken@1926
  2374
slouken@2753
  2375
    /* Extension names should not have spaces. */
slouken@2753
  2376
    where = SDL_strchr(extension, ' ');
slouken@2753
  2377
    if (where || *extension == '\0') {
slouken@2753
  2378
        return SDL_FALSE;
slouken@2753
  2379
    }
slouken@2753
  2380
    /* See if there's an environment variable override */
slouken@2753
  2381
    start = SDL_getenv(extension);
slouken@2753
  2382
    if (start && *start == '0') {
slouken@2753
  2383
        return SDL_FALSE;
slouken@2753
  2384
    }
icculus@7210
  2385
slouken@2753
  2386
    /* Lookup the available extensions */
icculus@7210
  2387
slouken@2753
  2388
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
icculus@7210
  2389
    if (!glGetStringFunc) {
icculus@7210
  2390
        return SDL_FALSE;
slouken@2753
  2391
    }
icculus@7210
  2392
icculus@7210
  2393
    if (isAtLeastGL3((const char *) glGetStringFunc(GL_VERSION))) {
icculus@7210
  2394
        const GLubyte *(APIENTRY * glGetStringiFunc) (GLenum, GLuint);
icculus@7210
  2395
        void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
icculus@7210
  2396
        GLint num_exts = 0;
icculus@7210
  2397
        GLint i;
icculus@7210
  2398
icculus@7210
  2399
        glGetStringiFunc = SDL_GL_GetProcAddress("glGetStringi");
icculus@7210
  2400
        glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
icculus@7210
  2401
        if ((!glGetStringiFunc) || (!glGetIntegervFunc)) {
icculus@7210
  2402
            return SDL_FALSE;
icculus@7210
  2403
        }
icculus@7210
  2404
icculus@7212
  2405
        #ifndef GL_NUM_EXTENSIONS
icculus@7212
  2406
        #define GL_NUM_EXTENSIONS 0x821D
icculus@7212
  2407
        #endif
icculus@7210
  2408
        glGetIntegervFunc(GL_NUM_EXTENSIONS, &num_exts);
icculus@7210
  2409
        for (i = 0; i < num_exts; i++) {
icculus@7210
  2410
            const char *thisext = (const char *) glGetStringiFunc(GL_EXTENSIONS, i);
icculus@7210
  2411
            if (SDL_strcmp(thisext, extension) == 0) {
icculus@7210
  2412
                return SDL_TRUE;
icculus@7210
  2413
            }
icculus@7210
  2414
        }
icculus@7210
  2415
icculus@7210
  2416
        return SDL_FALSE;
icculus@7210
  2417
    }
icculus@7210
  2418
icculus@7210
  2419
    /* Try the old way with glGetString(GL_EXTENSIONS) ... */
icculus@7210
  2420
icculus@7210
  2421
    extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2422
    if (!extensions) {
slouken@2753
  2423
        return SDL_FALSE;
slouken@2753
  2424
    }
slouken@2753
  2425
    /*
slouken@2753
  2426
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2427
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2428
     */
slouken@1926
  2429
slouken@2753
  2430
    start = extensions;
slouken@1926
  2431
slouken@2753
  2432
    for (;;) {
slouken@2753
  2433
        where = SDL_strstr(start, extension);
slouken@2753
  2434
        if (!where)
slouken@2753
  2435
            break;
slouken@1926
  2436
slouken@2753
  2437
        terminator = where + SDL_strlen(extension);
slouken@2753
  2438
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2439
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2440
                return SDL_TRUE;
slouken@1926
  2441
slouken@2753
  2442
        start = terminator;
slouken@2753
  2443
    }
slouken@2753
  2444
    return SDL_FALSE;
slouken@1926
  2445
#else
slouken@2753
  2446
    return SDL_FALSE;
slouken@1926
  2447
#endif
slouken@1926
  2448
}
slouken@1926
  2449
slouken@1895
  2450
int
slouken@1895
  2451
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2452
{
slouken@5209
  2453
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2454
    int retval;
slouken@0
  2455
slouken@2753
  2456
    if (!_this) {
icculus@7037
  2457
        return SDL_UninitializedVideo();
slouken@2753
  2458
    }
slouken@2753
  2459
    retval = 0;
slouken@2753
  2460
    switch (attr) {
slouken@2753
  2461
    case SDL_GL_RED_SIZE:
slouken@2753
  2462
        _this->gl_config.red_size = value;
slouken@2753
  2463
        break;
slouken@2753
  2464
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2465
        _this->gl_config.green_size = value;
slouken@2753
  2466
        break;
slouken@2753
  2467
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2468
        _this->gl_config.blue_size = value;
slouken@2753
  2469
        break;
slouken@2753
  2470
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2471
        _this->gl_config.alpha_size = value;
slouken@2753
  2472
        break;
slouken@2753
  2473
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2474
        _this->gl_config.double_buffer = value;
slouken@2753
  2475
        break;
slouken@2753
  2476
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2477
        _this->gl_config.buffer_size = value;
slouken@2753
  2478
        break;
slouken@2753
  2479
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2480
        _this->gl_config.depth_size = value;
slouken@2753
  2481
        break;
slouken@2753
  2482
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2483
        _this->gl_config.stencil_size = value;
slouken@2753
  2484
        break;
slouken@2753
  2485
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2486
        _this->gl_config.accum_red_size = value;
slouken@2753
  2487
        break;
slouken@2753
  2488
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2489
        _this->gl_config.accum_green_size = value;
slouken@2753
  2490
        break;
slouken@2753
  2491
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2492
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2493
        break;
slouken@2753
  2494
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2495
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2496
        break;
slouken@2753
  2497
    case SDL_GL_STEREO:
slouken@2753
  2498
        _this->gl_config.stereo = value;
slouken@2753
  2499
        break;
slouken@2753
  2500
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2501
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2502
        break;
slouken@2753
  2503
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2504
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2505
        break;
slouken@2753
  2506
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2507
        _this->gl_config.accelerated = value;
slouken@2753
  2508
        break;
slouken@2753
  2509
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2510
        _this->gl_config.retained_backing = value;
slouken@2753
  2511
        break;
slouken@3100
  2512
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2513
        _this->gl_config.major_version = value;
slouken@3100
  2514
        break;
slouken@3100
  2515
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2516
        _this->gl_config.minor_version = value;
slouken@3100
  2517
        break;
slouken@6370
  2518
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2519
        _this->gl_config.use_egl = value;
slouken@6370
  2520
        break;
slouken@6296
  2521
    case SDL_GL_CONTEXT_FLAGS:
slouken@6393
  2522
        if( value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@7191
  2523
              SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@7191
  2524
              SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@7191
  2525
              SDL_GL_CONTEXT_RESET_ISOLATION_FLAG) ) {
slouken@7191
  2526
        retval = SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@7191
  2527
        break;
slouken@7191
  2528
    }
slouken@6296
  2529
        _this->gl_config.flags = value;
slouken@6296
  2530
        break;
slouken@6296
  2531
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6393
  2532
        if( value != 0 &&
slouken@7191
  2533
        value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@7191
  2534
        value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@7191
  2535
        value != SDL_GL_CONTEXT_PROFILE_ES ) {
slouken@7191
  2536
        retval = SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@7191
  2537
        break;
slouken@7191
  2538
    }
slouken@6296
  2539
        _this->gl_config.profile_mask = value;
slouken@6296
  2540
        break;
slouken@6393
  2541
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@6393
  2542
        _this->gl_config.share_with_current_context = value;
slouken@7191
  2543
    break;
slouken@2753
  2544
    default:
icculus@7037
  2545
        retval = SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2546
        break;
slouken@2753
  2547
    }
slouken@2753
  2548
    return retval;
slouken@1936
  2549
#else
icculus@7037
  2550
    return SDL_Unsupported();
slouken@2753
  2551
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2552
}
slouken@0
  2553
slouken@1895
  2554
int
slouken@1936
  2555
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2556
{
slouken@5209
  2557
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2558
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2559
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2560
    GLenum attrib = 0;
slouken@3099
  2561
    GLenum error = 0;
slouken@1912
  2562
slouken@2753
  2563
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2564
    if (!glGetIntegervFunc) {
slouken@2753
  2565
        return -1;
slouken@2753
  2566
    }
slouken@3099
  2567
slouken@3099
  2568
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2569
    if (!glGetErrorFunc) {
slouken@3099
  2570
        return -1;
slouken@3099
  2571
    }
slouken@3099
  2572
slouken@3099
  2573
    /* Clear value in any case */
slouken@3139
  2574
    *value = 0;
slouken@3099
  2575
slouken@2753
  2576
    switch (attr) {
slouken@2753
  2577
    case SDL_GL_RED_SIZE:
slouken@2753
  2578
        attrib = GL_RED_BITS;
slouken@2753
  2579
        break;
slouken@2753
  2580
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2581
        attrib = GL_BLUE_BITS;
slouken@2753
  2582
        break;
slouken@2753
  2583
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2584
        attrib = GL_GREEN_BITS;
slouken@2753
  2585
        break;
slouken@2753
  2586
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2587
        attrib = GL_ALPHA_BITS;
slouken@2753
  2588
        break;
slouken@2753
  2589
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2590
#if SDL_VIDEO_OPENGL
slouken@2753
  2591
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2592
        break;
hfutrell@2745
  2593
#else
slouken@3099
  2594
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2595
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2596
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2597
        *value = _this->gl_config.double_buffer;
slouken@2753
  2598
        return 0;
hfutrell@2745
  2599
#endif
slouken@2753
  2600
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2601
        attrib = GL_DEPTH_BITS;
slouken@2753
  2602
        break;
slouken@2753
  2603
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2604
        attrib = GL_STENCIL_BITS;
slouken@2753
  2605
        break;
slouken@5209
  2606
#if SDL_VIDEO_OPENGL
slouken@2753
  2607
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2608
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2609
        break;
slouken@2753
  2610
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2611
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2612
        break;
slouken@2753
  2613
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2614
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2615
        break;
slouken@2753
  2616
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2617
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2618
        break;
slouken@2753
  2619
    case SDL_GL_STEREO:
slouken@2753
  2620
        attrib = GL_STEREO;
slouken@2753
  2621
        break;
hfutrell@2745
  2622
#else
slouken@2753
  2623
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2624
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2625
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2626
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2627
    case SDL_GL_STEREO:
slouken@2753
  2628
        /* none of these are supported in OpenGL ES */
slouken@2753
  2629
        *value = 0;
slouken@2753
  2630
        return 0;
hfutrell@2745
  2631
#endif
slouken@2753
  2632
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2633
#if SDL_VIDEO_OPENGL
slouken@2753
  2634
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2635
#else
slouken@2753
  2636
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2637
#endif
slouken@2753
  2638
        break;
slouken@2753
  2639
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2640
#if SDL_VIDEO_OPENGL
slouken@2753
  2641
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2642
#else
slouken@2753
  2643
        attrib = GL_SAMPLES;
hfutrell@2745
  2644
#endif
slouken@2753
  2645
        break;
slouken@2753
  2646
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2647
        {
slouken@2753
  2648
            GLint bits = 0;
slouken@2753
  2649
            GLint component;
slouken@1936
  2650
slouken@2753
  2651
            /*
slouken@2753
  2652
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2653
             * for this!
slouken@2753
  2654
             */