src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 06 Jul 2013 12:28:57 -0700
changeset 7360 b86947ea2749
parent 7269 f7a0cc4bf74d
child 7390 e4b98404baa4
permissions -rw-r--r--
Make it possible to use SDL events separately from the video subsystem.
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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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#if SDL_VIDEO_OPENGL_ES2
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 */
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#include "SDL_syswm.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WINDOWS
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    &WINDOWS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_BWINDOW
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    &BWINDOW_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PANDORA
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    &PND_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_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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    if (data->pixels) {
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        SDL_free(data->pixels);
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        data->pixels = NULL;
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    }
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    if (SDL_GetRendererInfo(data->renderer, &info) < 0) {
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        return -1;
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    }
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    /* Find the first format without an alpha channel */
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    *format = info.texture_formats[0];
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    for (i = 0; i < info.num_texture_formats; ++i) {
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        if (!SDL_ISPIXELFORMAT_FOURCC(info.texture_formats[i]) &&
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            !SDL_ISPIXELFORMAT_ALPHA(info.texture_formats[i])) {
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            *format = info.texture_formats[i];
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            break;
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        }
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    }
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    data->texture = SDL_CreateTexture(data->renderer, *format,
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                                      SDL_TEXTUREACCESS_STREAMING,
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                                      window->w, window->h);
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    if (!data->texture) {
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        return -1;
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    }
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    /* Create framebuffer data */
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    data->bytes_per_pixel = SDL_BYTESPERPIXEL(*format);
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    data->pitch = (((window->w * data->bytes_per_pixel) + 3) & ~3);
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    data->pixels = SDL_malloc(window->h * data->pitch);
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    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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   332
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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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   338
static void
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SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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{
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   341
    SDL_WindowTextureData *data;
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   342
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   343
    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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   344
    if (!data) {
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        return;
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   346
    }
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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    }
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   350
    if (data->renderer) {
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        SDL_DestroyRenderer(data->renderer);
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    }
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    if (data->pixels) {
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        SDL_free(data->pixels);
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    }
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   356
    SDL_free(data);
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}
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   359
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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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    SDL_DisplayMode a = *(const SDL_DisplayMode *) A;
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    SDL_DisplayMode b = *(const SDL_DisplayMode *) B;
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   365
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   366
    if (a.w != b.w) {
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        return b.w - a.w;
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   368
    }
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   369
    if (a.h != b.h) {
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        return b.h - a.h;
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   371
    }
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    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
slouken@2753
   373
        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
slouken@2753
   374
    }
lestat@3178
   375
    if (SDL_PIXELLAYOUT(a.format) != SDL_PIXELLAYOUT(b.format)) {
lestat@3178
   376
        return SDL_PIXELLAYOUT(b.format) - SDL_PIXELLAYOUT(a.format);
lestat@3178
   377
    }
slouken@2753
   378
    if (a.refresh_rate != b.refresh_rate) {
slouken@2753
   379
        return b.refresh_rate - a.refresh_rate;
slouken@2753
   380
    }
slouken@2753
   381
    return 0;
slouken@1895
   382
}
slouken@1895
   383
icculus@7037
   384
static int
slouken@1912
   385
SDL_UninitializedVideo()
slouken@1912
   386
{
icculus@7037
   387
    return SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   388
}
slouken@1912
   389
slouken@1895
   390
int
slouken@1895
   391
SDL_GetNumVideoDrivers(void)
slouken@1895
   392
{
slouken@2753
   393
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   394
}
slouken@1895
   395
slouken@2753
   396
const char *
slouken@1895
   397
SDL_GetVideoDriver(int index)
slouken@1895
   398
{
slouken@2753
   399
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   400
        return bootstrap[index]->name;
slouken@2753
   401
    }
slouken@2753
   402
    return NULL;
slouken@1895
   403
}
slouken@0
   404
slouken@0
   405
/*
slouken@0
   406
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   407
 */
slouken@1895
   408
int
slouken@5123
   409
SDL_VideoInit(const char *driver_name)
slouken@0
   410
{
slouken@2753
   411
    SDL_VideoDevice *video;
slouken@2753
   412
    int index;
slouken@2753
   413
    int i;
slouken@0
   414
slouken@3694
   415
    /* Check to make sure we don't overwrite '_this' */
slouken@3694
   416
    if (_this != NULL) {
slouken@3694
   417
        SDL_VideoQuit();
slouken@3694
   418
    }
slouken@7191
   419
urkle@7139
   420
#if !SDL_TIMERS_DISABLED
urkle@7139
   421
    SDL_InitTicks();
urkle@7139
   422
#endif
slouken@3694
   423
slouken@2753
   424
    /* Start the event loop */
slouken@7360
   425
    if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0 ||
slouken@5123
   426
        SDL_KeyboardInit() < 0 ||
slouken@5123
   427
        SDL_MouseInit() < 0 ||
slouken@7360
   428
        SDL_TouchInit() < 0) {
slouken@2753
   429
        return -1;
slouken@2753
   430
    }
slouken@3694
   431
slouken@2753
   432
    /* Select the proper video driver */
slouken@2753
   433
    index = 0;
slouken@2753
   434
    video = NULL;
slouken@2753
   435
    if (driver_name == NULL) {
slouken@2753
   436
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   437
    }
slouken@2753
   438
    if (driver_name != NULL) {
slouken@2753
   439
        for (i = 0; bootstrap[i]; ++i) {
slouken@6900
   440
            if (SDL_strncasecmp(bootstrap[i]->name, driver_name, SDL_strlen(driver_name)) == 0) {
slouken@3448
   441
                video = bootstrap[i]->create(index);
slouken@2753
   442
                break;
slouken@2753
   443
            }
slouken@2753
   444
        }
slouken@2753
   445
    } else {
slouken@2753
   446
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   447
            if (bootstrap[i]->available()) {
slouken@2753
   448
                video = bootstrap[i]->create(index);
slouken@2753
   449
                if (video != NULL) {
slouken@2753
   450
                    break;
slouken@2753
   451
                }
slouken@2753
   452
            }
slouken@2753
   453
        }
slouken@2753
   454
    }
slouken@2753
   455
    if (video == NULL) {
slouken@2753
   456
        if (driver_name) {
icculus@7037
   457
            return SDL_SetError("%s not available", driver_name);
slouken@2753
   458
        }
icculus@7037
   459
        return SDL_SetError("No available video device");
slouken@2753
   460
    }
slouken@2753
   461
    _this = video;
slouken@2753
   462
    _this->name = bootstrap[i]->name;
slouken@2753
   463
    _this->next_object_id = 1;
slouken@0
   464
slouken@0
   465
slouken@2753
   466
    /* Set some very sane GL defaults */
slouken@2753
   467
    _this->gl_config.driver_loaded = 0;
slouken@2753
   468
    _this->gl_config.dll_handle = NULL;
slouken@2753
   469
    _this->gl_config.red_size = 3;
slouken@2753
   470
    _this->gl_config.green_size = 3;
slouken@2753
   471
    _this->gl_config.blue_size = 2;
slouken@2753
   472
    _this->gl_config.alpha_size = 0;
slouken@2753
   473
    _this->gl_config.buffer_size = 0;
slouken@2753
   474
    _this->gl_config.depth_size = 16;
slouken@2753
   475
    _this->gl_config.stencil_size = 0;
slouken@2753
   476
    _this->gl_config.double_buffer = 1;
slouken@2753
   477
    _this->gl_config.accum_red_size = 0;
slouken@2753
   478
    _this->gl_config.accum_green_size = 0;
slouken@2753
   479
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   480
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   481
    _this->gl_config.stereo = 0;
slouken@2753
   482
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   483
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   484
    _this->gl_config.retained_backing = 1;
slouken@3571
   485
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@5209
   486
#if SDL_VIDEO_OPENGL
slouken@3100
   487
    _this->gl_config.major_version = 2;
slouken@3100
   488
    _this->gl_config.minor_version = 1;
slouken@6370
   489
    _this->gl_config.use_egl = 0;
slouken@5217
   490
#elif SDL_VIDEO_OPENGL_ES
slouken@5217
   491
    _this->gl_config.major_version = 1;
slouken@5217
   492
    _this->gl_config.minor_version = 1;
slouken@6370
   493
    _this->gl_config.use_egl = 1;
slouken@5209
   494
#elif SDL_VIDEO_OPENGL_ES2
slouken@5209
   495
    _this->gl_config.major_version = 2;
slouken@5209
   496
    _this->gl_config.minor_version = 0;
slouken@6370
   497
    _this->gl_config.use_egl = 1;
slouken@5209
   498
#endif
slouken@6296
   499
    _this->gl_config.flags = 0;
slouken@6296
   500
    _this->gl_config.profile_mask = 0;
slouken@6393
   501
    _this->gl_config.share_with_current_context = 0;
slouken@0
   502
slouken@2753
   503
    /* Initialize the video subsystem */
slouken@2753
   504
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   505
        SDL_VideoQuit();
slouken@2753
   506
        return -1;
slouken@2753
   507
    }
slouken@5166
   508
slouken@2753
   509
    /* Make sure some displays were added */
slouken@2753
   510
    if (_this->num_displays == 0) {
slouken@2753
   511
        SDL_VideoQuit();
icculus@7037
   512
        return SDL_SetError("The video driver did not add any displays");
slouken@2753
   513
    }
slouken@0
   514
slouken@5190
   515
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   516
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   517
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   518
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   519
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   520
    }
slouken@5166
   521
slouken@6670
   522
    /* If we don't use a screen keyboard, turn on text input by default,
slouken@6670
   523
       otherwise programs that expect to get text events without enabling
slouken@6670
   524
       UNICODE input won't get any events.
slouken@6670
   525
slouken@6670
   526
       Actually, come to think of it, you needed to call SDL_EnableUNICODE(1)
slouken@6670
   527
       in SDL 1.2 before you got text input events.  Hmm...
slouken@6670
   528
     */
slouken@6670
   529
    if (!SDL_HasScreenKeyboardSupport()) {
slouken@6670
   530
        SDL_StartTextInput();
slouken@6670
   531
    }
slouken@6670
   532
slouken@2753
   533
    /* We're ready to go! */
slouken@2753
   534
    return 0;
slouken@0
   535
}
slouken@0
   536
slouken@2753
   537
const char *
slouken@1895
   538
SDL_GetCurrentVideoDriver()
slouken@0
   539
{
slouken@2753
   540
    if (!_this) {
slouken@2753
   541
        SDL_UninitializedVideo();
slouken@2753
   542
        return NULL;
slouken@2753
   543
    }
slouken@2753
   544
    return _this->name;
slouken@0
   545
}
slouken@0
   546
slouken@1895
   547
SDL_VideoDevice *
slouken@4472
   548
SDL_GetVideoDevice(void)
slouken@0
   549
{
slouken@2753
   550
    return _this;
slouken@0
   551
}
slouken@0
   552
slouken@1895
   553
int
slouken@1895
   554
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   555
{
slouken@2753
   556
    SDL_VideoDisplay display;
slouken@0
   557
slouken@2753
   558
    SDL_zero(display);
slouken@2753
   559
    if (desktop_mode) {
slouken@2753
   560
        display.desktop_mode = *desktop_mode;
slouken@2753
   561
    }
slouken@2753
   562
    display.current_mode = display.desktop_mode;
slouken@1895
   563
slouken@2753
   564
    return SDL_AddVideoDisplay(&display);
slouken@0
   565
}
slouken@0
   566
slouken@1895
   567
int
slouken@1895
   568
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   569
{
slouken@2753
   570
    SDL_VideoDisplay *displays;
slouken@2753
   571
    int index = -1;
slouken@0
   572
slouken@2753
   573
    displays =
slouken@2753
   574
        SDL_realloc(_this->displays,
slouken@2753
   575
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   576
    if (displays) {
slouken@2753
   577
        index = _this->num_displays++;
slouken@2753
   578
        displays[index] = *display;
slouken@2753
   579
        displays[index].device = _this;
slouken@2753
   580
        _this->displays = displays;
slouken@6787
   581
slouken@6787
   582
        if (display->name) {
slouken@6787
   583
            displays[index].name = SDL_strdup(display->name);
slouken@6787
   584
        } else {
slouken@6787
   585
            char name[32];
slouken@6787
   586
slouken@6787
   587
            SDL_itoa(index, name, 10);
slouken@6787
   588
            displays[index].name = SDL_strdup(name);
slouken@6787
   589
        }
slouken@2753
   590
    } else {
slouken@2753
   591
        SDL_OutOfMemory();
slouken@2753
   592
    }
slouken@2753
   593
    return index;
slouken@0
   594
}
slouken@0
   595
slouken@1895
   596
int
slouken@1895
   597
SDL_GetNumVideoDisplays(void)
slouken@0
   598
{
slouken@2753
   599
    if (!_this) {
slouken@2753
   600
        SDL_UninitializedVideo();
slouken@2753
   601
        return 0;
slouken@2753
   602
    }
slouken@2753
   603
    return _this->num_displays;
slouken@0
   604
}
slouken@0
   605
slouken@6044
   606
static int
slouken@5380
   607
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   608
{
slouken@5380
   609
    int displayIndex;
slouken@5380
   610
slouken@5380
   611
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   612
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   613
            return displayIndex;
slouken@5380
   614
        }
slouken@5380
   615
    }
slouken@5380
   616
slouken@5380
   617
    /* Couldn't find the display, just use index 0 */
slouken@5380
   618
    return 0;
slouken@5380
   619
}
slouken@5380
   620
slouken@6787
   621
const char *
slouken@6787
   622
SDL_GetDisplayName(int displayIndex)
slouken@6787
   623
{
slouken@6787
   624
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@6787
   625
slouken@6787
   626
    return _this->displays[displayIndex].name;
slouken@6787
   627
}
slouken@6787
   628
slouken@5380
   629
int
slouken@5244
   630
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   631
{
slouken@5244
   632
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   633
slouken@3528
   634
    if (rect) {
slouken@5244
   635
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   636
slouken@3528
   637
        if (_this->GetDisplayBounds) {
slouken@5249
   638
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   639
                return 0;
slouken@3528
   640
            }
slouken@5249
   641
        }
slouken@5249
   642
slouken@5249
   643
        /* Assume that the displays are left to right */
slouken@5249
   644
        if (displayIndex == 0) {
slouken@5249
   645
            rect->x = 0;
slouken@5249
   646
            rect->y = 0;
slouken@3528
   647
        } else {
slouken@5249
   648
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   649
            rect->x += rect->w;
slouken@3528
   650
        }
slouken@6518
   651
        rect->w = display->current_mode.w;
slouken@6518
   652
        rect->h = display->current_mode.h;
slouken@3528
   653
    }
slouken@3528
   654
    return 0;
slouken@3528
   655
}
slouken@3528
   656
slouken@1895
   657
SDL_bool
slouken@3500
   658
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   659
{
slouken@2753
   660
    SDL_DisplayMode *modes;
slouken@2753
   661
    int i, nmodes;
slouken@0
   662
slouken@2753
   663
    /* Make sure we don't already have the mode in the list */
slouken@2753
   664
    modes = display->display_modes;
slouken@2753
   665
    nmodes = display->num_display_modes;
slouken@2753
   666
    for (i = nmodes; i--;) {
slouken@2753
   667
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   668
            return SDL_FALSE;
slouken@2753
   669
        }
slouken@2753
   670
    }
slouken@1895
   671
slouken@2753
   672
    /* Go ahead and add the new mode */
slouken@2753
   673
    if (nmodes == display->max_display_modes) {
slouken@2753
   674
        modes =
slouken@2753
   675
            SDL_realloc(modes,
slouken@2753
   676
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   677
        if (!modes) {
slouken@2753
   678
            return SDL_FALSE;
slouken@2753
   679
        }
slouken@2753
   680
        display->display_modes = modes;
slouken@2753
   681
        display->max_display_modes += 32;
slouken@2753
   682
    }
slouken@2753
   683
    modes[nmodes] = *mode;
slouken@2753
   684
    display->num_display_modes++;
slouken@1895
   685
lestat@3178
   686
    /* Re-sort video modes */
lestat@3178
   687
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   688
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   689
slouken@2753
   690
    return SDL_TRUE;
slouken@0
   691
}
slouken@0
   692
slouken@5244
   693
static int
slouken@3500
   694
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   695
{
slouken@3500
   696
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   697
        _this->GetDisplayModes(_this, display);
slouken@3500
   698
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   699
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   700
    }
slouken@3500
   701
    return display->num_display_modes;
slouken@3500
   702
}
slouken@3500
   703
slouken@3500
   704
int
slouken@5244
   705
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   706
{
slouken@5244
   707
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   708
slouken@5244
   709
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   710
}
slouken@3500
   711
slouken@3500
   712
int
slouken@5244
   713
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   714
{
slouken@5244
   715
    SDL_VideoDisplay *display;
slouken@5244
   716
slouken@5244
   717
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   718
slouken@5244
   719
    display = &_this->displays[displayIndex];
slouken@3500
   720
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
icculus@7037
   721
        return SDL_SetError("index must be in the range of 0 - %d",
icculus@7037
   722
                            SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   723
    }
slouken@3500
   724
    if (mode) {
slouken@3500
   725
        *mode = display->display_modes[index];
slouken@2753
   726
    }
slouken@2753
   727
    return 0;
slouken@0
   728
}
slouken@0
   729
slouken@1967
   730
int
slouken@5244
   731
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   732
{
slouken@5244
   733
    SDL_VideoDisplay *display;
slouken@3500
   734
slouken@5244
   735
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   736
slouken@5244
   737
    display = &_this->displays[displayIndex];
slouken@2753
   738
    if (mode) {
slouken@3500
   739
        *mode = display->desktop_mode;
slouken@2753
   740
    }
slouken@2753
   741
    return 0;
slouken@0
   742
}
slouken@0
   743
slouken@1967
   744
int
slouken@5244
   745
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   746
{
slouken@5244
   747
    SDL_VideoDisplay *display;
slouken@3500
   748
slouken@5244
   749
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   750
slouken@5244
   751
    display = &_this->displays[displayIndex];
slouken@2753
   752
    if (mode) {
slouken@3500
   753
        *mode = display->current_mode;
slouken@2753
   754
    }
slouken@2753
   755
    return 0;
slouken@0
   756
}
slouken@0
   757
slouken@5244
   758
static SDL_DisplayMode *
slouken@3500
   759
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   760
                                    const SDL_DisplayMode * mode,
slouken@3500
   761
                                    SDL_DisplayMode * closest)
slouken@0
   762
{
slouken@2753
   763
    Uint32 target_format;
slouken@2753
   764
    int target_refresh_rate;
slouken@2753
   765
    int i;
slouken@2753
   766
    SDL_DisplayMode *current, *match;
slouken@0
   767
slouken@3500
   768
    if (!mode || !closest) {
slouken@3500
   769
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   770
        return NULL;
slouken@2753
   771
    }
slouken@3500
   772
slouken@2753
   773
    /* Default to the desktop format */
slouken@2753
   774
    if (mode->format) {
slouken@2753
   775
        target_format = mode->format;
slouken@2753
   776
    } else {
slouken@3500
   777
        target_format = display->desktop_mode.format;
slouken@2753
   778
    }
slouken@0
   779
slouken@2753
   780
    /* Default to the desktop refresh rate */
slouken@2753
   781
    if (mode->refresh_rate) {
slouken@2753
   782
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   783
    } else {
slouken@3500
   784
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   785
    }
slouken@0
   786
slouken@2753
   787
    match = NULL;
slouken@3500
   788
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   789
        current = &display->display_modes[i];
slouken@0
   790
slouken@2789
   791
        if (current->w && (current->w < mode->w)) {
slouken@2753
   792
            /* Out of sorted modes large enough here */
slouken@2753
   793
            break;
slouken@2753
   794
        }
slouken@2789
   795
        if (current->h && (current->h < mode->h)) {
slouken@2789
   796
            if (current->w && (current->w == mode->w)) {
slouken@2789
   797
                /* Out of sorted modes large enough here */
slouken@2789
   798
                break;
slouken@2789
   799
            }
slouken@2789
   800
            /* Wider, but not tall enough, due to a different
slouken@2789
   801
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   802
               modes may still follow. */
slouken@2789
   803
            continue;
slouken@2789
   804
        }
slouken@2753
   805
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   806
            match = current;
slouken@2753
   807
            continue;
slouken@2753
   808
        }
slouken@2753
   809
        if (current->format != match->format) {
slouken@2753
   810
            /* Sorted highest depth to lowest */
slouken@2753
   811
            if (current->format == target_format ||
slouken@2753
   812
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   813
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   814
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   815
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   816
                match = current;
slouken@2753
   817
            }
slouken@2753
   818
            continue;
slouken@2753
   819
        }
slouken@2753
   820
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   821
            /* Sorted highest refresh to lowest */
slouken@2753
   822
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   823
                match = current;
slouken@2753
   824
            }
slouken@2753
   825
        }
slouken@2753
   826
    }
slouken@2753
   827
    if (match) {
slouken@2753
   828
        if (match->format) {
slouken@2753
   829
            closest->format = match->format;
slouken@2753
   830
        } else {
slouken@2753
   831
            closest->format = mode->format;
slouken@2753
   832
        }
slouken@2753
   833
        if (match->w && match->h) {
slouken@2753
   834
            closest->w = match->w;
slouken@2753
   835
            closest->h = match->h;
slouken@2753
   836
        } else {
slouken@2753
   837
            closest->w = mode->w;
slouken@2753
   838
            closest->h = mode->h;
slouken@2753
   839
        }
slouken@2753
   840
        if (match->refresh_rate) {
slouken@2753
   841
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   842
        } else {
slouken@2753
   843
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   844
        }
slouken@2753
   845
        closest->driverdata = match->driverdata;
slouken@1895
   846
slouken@2753
   847
        /*
slouken@2753
   848
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   849
         * care
slouken@2753
   850
         */
slouken@2753
   851
        if (!closest->format) {
slouken@2753
   852
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   853
        }
slouken@2753
   854
        if (!closest->w) {
slouken@2753
   855
            closest->w = 640;
slouken@2753
   856
        }
slouken@2753
   857
        if (!closest->h) {
slouken@2753
   858
            closest->h = 480;
slouken@2753
   859
        }
slouken@2753
   860
        return closest;
slouken@2753
   861
    }
slouken@2753
   862
    return NULL;
slouken@0
   863
}
slouken@0
   864
slouken@3500
   865
SDL_DisplayMode *
slouken@5244
   866
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   867
                          const SDL_DisplayMode * mode,
slouken@3500
   868
                          SDL_DisplayMode * closest)
slouken@3500
   869
{
slouken@5244
   870
    SDL_VideoDisplay *display;
slouken@5244
   871
slouken@5244
   872
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   873
slouken@5244
   874
    display = &_this->displays[displayIndex];
slouken@5244
   875
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   876
}
slouken@3500
   877
slouken@6044
   878
static int
slouken@3500
   879
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   880
{
slouken@2753
   881
    SDL_DisplayMode display_mode;
slouken@2753
   882
    SDL_DisplayMode current_mode;
slouken@0
   883
slouken@3502
   884
    if (mode) {
slouken@3502
   885
        display_mode = *mode;
slouken@3502
   886
slouken@3502
   887
        /* Default to the current mode */
slouken@3502
   888
        if (!display_mode.format) {
slouken@3502
   889
            display_mode.format = display->current_mode.format;
slouken@3502
   890
        }
slouken@3502
   891
        if (!display_mode.w) {
slouken@3502
   892
            display_mode.w = display->current_mode.w;
slouken@3502
   893
        }
slouken@3502
   894
        if (!display_mode.h) {
slouken@3502
   895
            display_mode.h = display->current_mode.h;
slouken@3502
   896
        }
slouken@3502
   897
        if (!display_mode.refresh_rate) {
slouken@3502
   898
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   899
        }
slouken@3502
   900
slouken@3502
   901
        /* Get a good video mode, the closest one possible */
slouken@3502
   902
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
icculus@7037
   903
            return SDL_SetError("No video mode large enough for %dx%d",
icculus@7037
   904
                                display_mode.w, display_mode.h);
slouken@3502
   905
        }
slouken@3502
   906
    } else {
slouken@3502
   907
        display_mode = display->desktop_mode;
slouken@2753
   908
    }
slouken@3500
   909
slouken@2753
   910
    /* See if there's anything left to do */
slouken@5244
   911
    current_mode = display->current_mode;
slouken@2753
   912
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   913
        return 0;
slouken@2753
   914
    }
slouken@3500
   915
slouken@2753
   916
    /* Actually change the display mode */
slouken@4978
   917
    if (!_this->SetDisplayMode) {
icculus@7037
   918
        return SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   919
    }
slouken@3500
   920
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   921
        return -1;
slouken@2753
   922
    }
slouken@2753
   923
    display->current_mode = display_mode;
slouken@2753
   924
    return 0;
slouken@0
   925
}
slouken@0
   926
slouken@1895
   927
int
slouken@6786
   928
SDL_GetWindowDisplayIndex(SDL_Window * window)
slouken@5246
   929
{
slouken@5246
   930
    int displayIndex;
slouken@5246
   931
    int i, dist;
slouken@5246
   932
    int closest = -1;
slouken@5246
   933
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   934
    SDL_Point center;
slouken@5246
   935
    SDL_Point delta;
slouken@5246
   936
    SDL_Rect rect;
slouken@5246
   937
slouken@5246
   938
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   939
slouken@5246
   940
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   941
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   942
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   943
        if (displayIndex >= _this->num_displays) {
slouken@5246
   944
            displayIndex = 0;
slouken@5246
   945
        }
slouken@5246
   946
        return displayIndex;
slouken@5246
   947
    }
slouken@5246
   948
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   949
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   950
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   951
        if (displayIndex >= _this->num_displays) {
slouken@5246
   952
            displayIndex = 0;
slouken@5246
   953
        }
slouken@5246
   954
        return displayIndex;
slouken@5246
   955
    }
slouken@5246
   956
slouken@5246
   957
    /* Find the display containing the window */
slouken@6547
   958
    for (i = 0; i < _this->num_displays; ++i) {
slouken@6547
   959
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@6547
   960
slouken@6547
   961
        if (display->fullscreen_window == window) {
slouken@6547
   962
            return i;
slouken@6547
   963
        }
slouken@6547
   964
    }
slouken@5246
   965
    center.x = window->x + window->w / 2;
slouken@5246
   966
    center.y = window->y + window->h / 2;
slouken@5246
   967
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   968
        SDL_GetDisplayBounds(i, &rect);
slouken@6547
   969
        if (SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   970
            return i;
slouken@5246
   971
        }
slouken@5246
   972
slouken@5246
   973
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   974
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   975
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   976
        if (dist < closest_dist) {
slouken@5246
   977
            closest = i;
slouken@5246
   978
            closest_dist = dist;
slouken@5246
   979
        }
slouken@5246
   980
    }
slouken@5246
   981
    if (closest < 0) {
slouken@5246
   982
        SDL_SetError("Couldn't find any displays");
slouken@5246
   983
    }
slouken@5246
   984
    return closest;
slouken@5246
   985
}
slouken@5246
   986
slouken@5246
   987
SDL_VideoDisplay *
slouken@5246
   988
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   989
{
slouken@6786
   990
    int displayIndex = SDL_GetWindowDisplayIndex(window);
slouken@5373
   991
    if (displayIndex >= 0) {
slouken@5373
   992
        return &_this->displays[displayIndex];
slouken@5373
   993
    } else {
slouken@5373
   994
        return NULL;
slouken@5373
   995
    }
slouken@5246
   996
}
slouken@5246
   997
slouken@5246
   998
int
slouken@3685
   999
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
  1000
{
slouken@3695
  1001
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1002
slouken@2753
  1003
    if (mode) {
slouken@3500
  1004
        window->fullscreen_mode = *mode;
slouken@3500
  1005
    } else {
slouken@3500
  1006
        SDL_zero(window->fullscreen_mode);
slouken@3500
  1007
    }
slouken@3526
  1008
    return 0;
slouken@3500
  1009
}
slouken@3500
  1010
slouken@3500
  1011
int
slouken@3685
  1012
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
  1013
{
slouken@3500
  1014
    SDL_DisplayMode fullscreen_mode;
slouken@7191
  1015
    SDL_VideoDisplay *display;
slouken@3500
  1016
aschiffler@6936
  1017
    if (!mode) {
icculus@7037
  1018
      return SDL_InvalidParamError("mode");
aschiffler@6936
  1019
    }
slouken@7191
  1020
slouken@3695
  1021
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1022
slouken@3500
  1023
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
  1024
    if (!fullscreen_mode.w) {
slouken@3500
  1025
        fullscreen_mode.w = window->w;
slouken@3500
  1026
    }
slouken@3500
  1027
    if (!fullscreen_mode.h) {
slouken@3500
  1028
        fullscreen_mode.h = window->h;
slouken@3500
  1029
    }
slouken@7191
  1030
slouken@7191
  1031
    display = SDL_GetDisplayForWindow(window);
slouken@7191
  1032
slouken@7191
  1033
    /* if in desktop size mode, just return the size of the desktop */
slouken@7191
  1034
    if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) == SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1035
    {
slouken@7191
  1036
        fullscreen_mode = display->desktop_mode;
slouken@7191
  1037
    }
slouken@7191
  1038
    else if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1039
                                             &fullscreen_mode,
slouken@3500
  1040
                                             &fullscreen_mode)) {
icculus@7037
  1041
        return SDL_SetError("Couldn't find display mode match");
slouken@3500
  1042
    }
slouken@3500
  1043
slouken@3500
  1044
    if (mode) {
slouken@3500
  1045
        *mode = fullscreen_mode;
slouken@2753
  1046
    }
slouken@2753
  1047
    return 0;
slouken@0
  1048
}
slouken@0
  1049
slouken@5154
  1050
Uint32
slouken@5154
  1051
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1052
{
slouken@5246
  1053
    SDL_VideoDisplay *display;
slouken@5246
  1054
slouken@5246
  1055
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1056
slouken@5246
  1057
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1058
    return display->current_mode.format;
slouken@5154
  1059
}
slouken@5154
  1060
slouken@3502
  1061
static void
slouken@5479
  1062
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1063
{
slouken@5479
  1064
    int x, y;
slouken@5479
  1065
slouken@5479
  1066
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1067
        SDL_GetMouseState(&x, &y);
slouken@5479
  1068
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1069
    }
slouken@5479
  1070
}
slouken@5479
  1071
slouken@5479
  1072
static void
slouken@5404
  1073
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1074
{
slouken@5246
  1075
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1076
    SDL_Window *other;
slouken@3502
  1077
slouken@5404
  1078
    if (fullscreen) {
slouken@3502
  1079
        /* Hide any other fullscreen windows */
slouken@5249
  1080
        if (display->fullscreen_window &&
slouken@5249
  1081
            display->fullscreen_window != window) {
slouken@5246
  1082
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1083
        }
slouken@3502
  1084
    }
slouken@3502
  1085
slouken@5305
  1086
    /* See if anything needs to be done now */
slouken@5404
  1087
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1088
        return;
slouken@5305
  1089
    }
slouken@5305
  1090
slouken@5249
  1091
    /* See if there are any fullscreen windows */
slouken@5249
  1092
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1093
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1094
slouken@5404
  1095
        if (other == window) {
slouken@5404
  1096
            setDisplayMode = fullscreen;
slouken@5404
  1097
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1098
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1099
            setDisplayMode = SDL_TRUE;
slouken@5404
  1100
        }
slouken@5404
  1101
slouken@5404
  1102
        if (setDisplayMode) {
slouken@5249
  1103
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1104
slouken@5249
  1105
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1106
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1107
slouken@5306
  1108
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1109
                    resized = SDL_FALSE;
slouken@5249
  1110
                }
slouken@3502
  1111
slouken@7191
  1112
                /* only do the mode change if we want exclusive fullscreen */
slouken@7191
  1113
                if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) != SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1114
                    SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@7191
  1115
                else
slouken@7191
  1116
                    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@7191
  1117
slouken@7191
  1118
slouken@5249
  1119
                if (_this->SetWindowFullscreen) {
slouken@5305
  1120
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1121
                }
slouken@5249
  1122
                display->fullscreen_window = other;
slouken@5249
  1123
slouken@5306
  1124
                /* Generate a mode change event here */
slouken@5306
  1125
                if (resized) {
slouken@5306
  1126
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1127
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1128
                } else {
slouken@5306
  1129
                    SDL_OnWindowResized(other);
slouken@5306
  1130
                }
slouken@5479
  1131
slouken@5479
  1132
                SDL_RestoreMousePosition(other);
slouken@3502
  1133
                return;
slouken@3502
  1134
            }
slouken@3502
  1135
        }
slouken@3502
  1136
    }
slouken@3502
  1137
slouken@3502
  1138
    /* Nope, restore the desktop mode */
slouken@3502
  1139
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1140
slouken@5249
  1141
    if (_this->SetWindowFullscreen) {
slouken@5305
  1142
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1143
    }
slouken@3517
  1144
    display->fullscreen_window = NULL;
slouken@5306
  1145
slouken@5306
  1146
    /* Generate a mode change event here */
slouken@5306
  1147
    SDL_OnWindowResized(window);
slouken@5479
  1148
slouken@5479
  1149
    /* Restore the cursor position */
slouken@5479
  1150
    SDL_RestoreMousePosition(window);
slouken@3502
  1151
}
slouken@3502
  1152
slouken@5380
  1153
#define CREATE_FLAGS \
slouken@5380
  1154
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1155
slouken@5380
  1156
static void
slouken@5380
  1157
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1158
{
slouken@5398
  1159
    window->windowed.x = window->x;
slouken@5398
  1160
    window->windowed.y = window->y;
slouken@5398
  1161
    window->windowed.w = window->w;
slouken@5398
  1162
    window->windowed.h = window->h;
slouken@5398
  1163
slouken@5380
  1164
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1165
        SDL_MaximizeWindow(window);
slouken@5380
  1166
    }
slouken@5380
  1167
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1168
        SDL_MinimizeWindow(window);
slouken@5380
  1169
    }
slouken@5380
  1170
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@6755
  1171
        SDL_SetWindowFullscreen(window, flags);
slouken@5380
  1172
    }
slouken@5380
  1173
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1174
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1175
    }
slouken@5380
  1176
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1177
        SDL_ShowWindow(window);
slouken@5380
  1178
    }
slouken@5380
  1179
}
slouken@5380
  1180
slouken@3685
  1181
SDL_Window *
slouken@1895
  1182
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1183
{
slouken@3685
  1184
    SDL_Window *window;
slouken@0
  1185
slouken@2753
  1186
    if (!_this) {
slouken@3417
  1187
        /* Initialize the video system if needed */
slouken@5123
  1188
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1189
            return NULL;
slouken@3417
  1190
        }
slouken@2753
  1191
    }
slouken@5249
  1192
slouken@6266
  1193
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1194
    if (w < 1) {
slouken@6266
  1195
        w = 1;
slouken@6266
  1196
    }
slouken@6266
  1197
    if (h < 1) {
slouken@6266
  1198
        h = 1;
slouken@6266
  1199
    }
slouken@6266
  1200
slouken@5249
  1201
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1202
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1203
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1204
#endif
slouken@3057
  1205
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1206
        if (!_this->GL_CreateContext) {
slouken@3057
  1207
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1208
            return NULL;
slouken@3057
  1209
        }
slouken@6611
  1210
        if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6611
  1211
            return NULL;
slouken@6611
  1212
        }
slouken@2753
  1213
    }
slouken@3685
  1214
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1215
    window->magic = &_this->window_magic;
slouken@3685
  1216
    window->id = _this->next_object_id++;
slouken@3685
  1217
    window->x = x;
slouken@3685
  1218
    window->y = y;
slouken@3685
  1219
    window->w = w;
slouken@3685
  1220
    window->h = h;
slouken@5380
  1221
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1222
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1223
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1224
        int displayIndex;
slouken@5380
  1225
        SDL_Rect bounds;
slouken@5380
  1226
slouken@5380
  1227
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1228
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1229
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1230
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1231
        }
slouken@5380
  1232
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1233
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1234
        }
slouken@5380
  1235
    }
slouken@5380
  1236
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1237
    window->brightness = 1.0f;
slouken@5246
  1238
    window->next = _this->windows;
slouken@5246
  1239
    if (_this->windows) {
slouken@5246
  1240
        _this->windows->prev = window;
slouken@3693
  1241
    }
slouken@5246
  1242
    _this->windows = window;
slouken@3685
  1243
slouken@3685
  1244
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1245
        SDL_DestroyWindow(window);
slouken@3685
  1246
        return NULL;
slouken@3685
  1247
    }
slouken@0
  1248
slouken@2753
  1249
    if (title) {
slouken@3685
  1250
        SDL_SetWindowTitle(window, title);
slouken@2753
  1251
    }
slouken@5380
  1252
    SDL_FinishWindowCreation(window, flags);
slouken@7191
  1253
slouken@6063
  1254
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1255
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1256
slouken@3685
  1257
    return window;
slouken@1895
  1258
}
slouken@0
  1259
slouken@3685
  1260
SDL_Window *
slouken@1895
  1261
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1262
{
slouken@3685
  1263
    SDL_Window *window;
slouken@0
  1264
slouken@2753
  1265
    if (!_this) {
slouken@2753
  1266
        SDL_UninitializedVideo();
slouken@3685
  1267
        return NULL;
slouken@3685
  1268
    }
slouken@3685
  1269
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1270
    window->magic = &_this->window_magic;
slouken@3685
  1271
    window->id = _this->next_object_id++;
slouken@3685
  1272
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1273
    window->brightness = 1.0f;
slouken@5246
  1274
    window->next = _this->windows;
slouken@5246
  1275
    if (_this->windows) {
slouken@5246
  1276
        _this->windows->prev = window;
slouken@3693
  1277
    }
slouken@5246
  1278
    _this->windows = window;
slouken@1895
  1279
slouken@2753
  1280
    if (!_this->CreateWindowFrom ||
slouken@3685
  1281
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1282
        SDL_DestroyWindow(window);
slouken@3685
  1283
        return NULL;
slouken@3685
  1284
    }
slouken@3685
  1285
    return window;
slouken@1895
  1286
}
slouken@1895
  1287
slouken@1924
  1288
int
slouken@1928
  1289
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1290
{
slouken@2753
  1291
    char *title = window->title;
slouken@1956
  1292
slouken@2753
  1293
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
icculus@7037
  1294
        return SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1295
    }
slouken@3057
  1296
slouken@3057
  1297
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1298
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1299
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1300
    } else {
slouken@3057
  1301
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1302
    }
slouken@3057
  1303
slouken@5249
  1304
    /* Restore video mode, etc. */
slouken@5305
  1305
    SDL_HideWindow(window);
slouken@5249
  1306
slouken@5249
  1307
    /* Tear down the old native window */
slouken@5249
  1308
    if (window->surface) {
slouken@5288
  1309
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1310
        SDL_FreeSurface(window->surface);
slouken@5249
  1311
    }
slouken@5249
  1312
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1313
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1314
    }
slouken@3057
  1315
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1316
        _this->DestroyWindow(_this, window);
slouken@2753
  1317
    }
slouken@3057
  1318
slouken@5249
  1319
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1320
        if (flags & SDL_WINDOW_OPENGL) {
slouken@6775
  1321
            if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6775
  1322
                return -1;
slouken@6775
  1323
            }
slouken@5249
  1324
        } else {
slouken@5249
  1325
            SDL_GL_UnloadLibrary();
slouken@5249
  1326
        }
slouken@5249
  1327
    }
slouken@5249
  1328
slouken@2753
  1329
    window->title = NULL;
slouken@5380
  1330
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1331
slouken@3057
  1332
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1333
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1334
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1335
                SDL_GL_UnloadLibrary();
slouken@3057
  1336
            }
slouken@3057
  1337
            return -1;
slouken@3057
  1338
        }
slouken@2753
  1339
    }
slouken@3057
  1340
slouken@2753
  1341
    if (title) {
slouken@3685
  1342
        SDL_SetWindowTitle(window, title);
slouken@2753
  1343
        SDL_free(title);
slouken@2753
  1344
    }
slouken@5380
  1345
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1346
slouken@2753
  1347
    return 0;
slouken@1924
  1348
}
slouken@1924
  1349
slouken@1895
  1350
Uint32
slouken@3685
  1351
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1352
{
slouken@3695
  1353
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1354
slouken@3685
  1355
    return window->id;
slouken@3685
  1356
}
slouken@3685
  1357
slouken@3685
  1358
SDL_Window *
slouken@3685
  1359
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1360
{
slouken@3685
  1361
    SDL_Window *window;
slouken@3685
  1362
slouken@3685
  1363
    if (!_this) {
slouken@3685
  1364
        return NULL;
slouken@3685
  1365
    }
slouken@5246
  1366
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1367
        if (window->id == id) {
slouken@5246
  1368
            return window;
slouken@3685
  1369
        }
slouken@3685
  1370
    }
slouken@3685
  1371
    return NULL;
slouken@3685
  1372
}
slouken@3685
  1373
slouken@3685
  1374
Uint32
slouken@3685
  1375
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1376
{
slouken@3695
  1377
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1378
slouken@2753
  1379
    return window->flags;
slouken@1895
  1380
}
slouken@1895
  1381
slouken@1895
  1382
void
slouken@3685
  1383
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1384
{
slouken@3695
  1385
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1386
slouken@3695
  1387
    if (title == window->title) {
slouken@2753
  1388
        return;
slouken@2753
  1389
    }
slouken@2753
  1390
    if (window->title) {
slouken@2753
  1391
        SDL_free(window->title);
slouken@2753
  1392
    }
slouken@4871
  1393
    if (title && *title) {
slouken@2753
  1394
        window->title = SDL_strdup(title);
slouken@2753
  1395
    } else {
slouken@2753
  1396
        window->title = NULL;
slouken@2753
  1397
    }
slouken@1956
  1398
slouken@2753
  1399
    if (_this->SetWindowTitle) {
slouken@2753
  1400
        _this->SetWindowTitle(_this, window);
slouken@2753
  1401
    }
slouken@1895
  1402
}
slouken@1895
  1403
slouken@2753
  1404
const char *
slouken@3685
  1405
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1406
{
slouken@4872
  1407
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1408
slouken@4871
  1409
    return window->title ? window->title : "";
slouken@1895
  1410
}
slouken@1895
  1411
slouken@1895
  1412
void
slouken@3685
  1413
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1414
{
slouken@3695
  1415
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1416
slouken@5375
  1417
    if (!icon) {
slouken@5375
  1418
        return;
slouken@5375
  1419
    }
slouken@5375
  1420
slouken@2967
  1421
    if (_this->SetWindowIcon) {
slouken@2967
  1422
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1423
    }
slouken@2967
  1424
}
slouken@2967
  1425
slouken@5165
  1426
void*
slouken@5165
  1427
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1428
{
slouken@5165
  1429
    SDL_WindowUserData *prev, *data;
slouken@3695
  1430
slouken@5165
  1431
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@7191
  1432
aschiffler@7046
  1433
    /* Input validation */
aschiffler@7046
  1434
    if (name == NULL || SDL_strlen(name) == 0) {
aschiffler@7046
  1435
      SDL_InvalidParamError("name");
aschiffler@7046
  1436
      return NULL;
aschiffler@7046
  1437
    }
slouken@5165
  1438
slouken@5165
  1439
    /* See if the named data already exists */
slouken@5165
  1440
    prev = NULL;
slouken@5165
  1441
    for (data = window->data; data; prev = data, data = data->next) {
aschiffler@7046
  1442
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1443
            void *last_value = data->data;
slouken@5165
  1444
slouken@5165
  1445
            if (userdata) {
slouken@5165
  1446
                /* Set the new value */
slouken@5165
  1447
                data->data = userdata;
slouken@5165
  1448
            } else {
slouken@5165
  1449
                /* Delete this value */
slouken@5165
  1450
                if (prev) {
slouken@5165
  1451
                    prev->next = data->next;
slouken@5165
  1452
                } else {
slouken@5165
  1453
                    window->data = data->next;
slouken@5165
  1454
                }
slouken@5165
  1455
                SDL_free(data->name);
slouken@5165
  1456
                SDL_free(data);
slouken@5165
  1457
            }
slouken@5165
  1458
            return last_value;
slouken@5165
  1459
        }
slouken@5165
  1460
    }
slouken@5165
  1461
slouken@5165
  1462
    /* Add new data to the window */
slouken@5165
  1463
    if (userdata) {
slouken@5165
  1464
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1465
        data->name = SDL_strdup(name);
slouken@5165
  1466
        data->data = userdata;
slouken@5165
  1467
        data->next = window->data;
slouken@5165
  1468
        window->data = data;
slouken@5165
  1469
    }
slouken@5165
  1470
    return NULL;
slouken@1895
  1471
}
slouken@1895
  1472
slouken@2753
  1473
void *
slouken@5165
  1474
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1475
{
slouken@5165
  1476
    SDL_WindowUserData *data;
slouken@5165
  1477
slouken@3695
  1478
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1479
aschiffler@7046
  1480
    /* Input validation */
aschiffler@7046
  1481
    if (name == NULL || SDL_strlen(name) == 0) {
aschiffler@7046
  1482
      SDL_InvalidParamError("name");
aschiffler@7046
  1483
      return NULL;
aschiffler@7046
  1484
    }
aschiffler@7046
  1485
slouken@5165
  1486
    for (data = window->data; data; data = data->next) {
aschiffler@7046
  1487
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1488
            return data->data;
slouken@5165
  1489
        }
slouken@5165
  1490
    }
slouken@5165
  1491
    return NULL;
slouken@1895
  1492
}
slouken@1895
  1493
slouken@1895
  1494
void
slouken@3685
  1495
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1496
{
slouken@3695
  1497
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1498
slouken@7195
  1499
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1500
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@7195
  1501
        int displayIndex;
slouken@7195
  1502
        SDL_Rect bounds;
slouken@7195
  1503
slouken@7195
  1504
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@7195
  1505
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@7195
  1506
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@7195
  1507
            x = bounds.x + (bounds.w - window->w) / 2;
slouken@7195
  1508
        }
slouken@7195
  1509
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1510
            y = bounds.y + (bounds.h - window->h) / 2;
slouken@7195
  1511
        }
slouken@7195
  1512
    }
slouken@7195
  1513
slouken@5305
  1514
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1515
        window->x = x;
slouken@2753
  1516
    }
slouken@5305
  1517
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1518
        window->y = y;
slouken@2753
  1519
    }
slouken@7195
  1520
slouken@5246
  1521
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1522
        if (_this->SetWindowPosition) {
slouken@5246
  1523
            _this->SetWindowPosition(_this, window);
slouken@5246
  1524
        }
slouken@5246
  1525
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1526
    }
slouken@1895
  1527
}
slouken@1895
  1528
slouken@1895
  1529
void
slouken@3685
  1530
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1531
{
slouken@5246
  1532
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1533
slouken@5246
  1534
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1535
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
aschiffler@6956
  1536
        if (x) {
aschiffler@6956
  1537
            *x = 0;
aschiffler@6956
  1538
        }
aschiffler@6956
  1539
        if (y) {
aschiffler@6956
  1540
            *y = 0;
aschiffler@6956
  1541
        }
slouken@5246
  1542
    } else {
slouken@5242
  1543
        if (x) {
slouken@5242
  1544
            *x = window->x;
slouken@5242
  1545
        }
slouken@5242
  1546
        if (y) {
slouken@5242
  1547
            *y = window->y;
slouken@5242
  1548
        }
slouken@2753
  1549
    }
slouken@1895
  1550
}
slouken@1895
  1551
slouken@1895
  1552
void
icculus@6422
  1553
SDL_SetWindowBordered(SDL_Window * window, SDL_bool bordered)
icculus@6422
  1554
{
icculus@6422
  1555
    CHECK_WINDOW_MAGIC(window, );
icculus@6422
  1556
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
icculus@6422
  1557
        const int want = (bordered != SDL_FALSE);  /* normalize the flag. */
icculus@6422
  1558
        const int have = ((window->flags & SDL_WINDOW_BORDERLESS) == 0);
icculus@6422
  1559
        if ((want != have) && (_this->SetWindowBordered)) {
icculus@6422
  1560
            if (want) {
icculus@6422
  1561
                window->flags &= ~SDL_WINDOW_BORDERLESS;
icculus@6422
  1562
            } else {
icculus@6422
  1563
                window->flags |= SDL_WINDOW_BORDERLESS;
icculus@6422
  1564
            }
icculus@6422
  1565
            _this->SetWindowBordered(_this, window, (SDL_bool) want);
icculus@6422
  1566
        }
icculus@6422
  1567
    }
icculus@6422
  1568
}
icculus@6422
  1569
icculus@6422
  1570
void
slouken@3685
  1571
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1572
{
slouken@3695
  1573
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1574
    if (w <= 0) {
aschiffler@6984
  1575
        SDL_InvalidParamError("w");
aschiffler@6984
  1576
        return;
aschiffler@6984
  1577
    }
aschiffler@6984
  1578
    if (h <= 0) {
aschiffler@6984
  1579
        SDL_InvalidParamError("h");
aschiffler@6984
  1580
        return;
aschiffler@6984
  1581
    }
slouken@3695
  1582
slouken@5249
  1583
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1584
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1585
        window->w = w;
slouken@5276
  1586
        window->h = h;
slouken@5249
  1587
        if (_this->SetWindowSize) {
slouken@5249
  1588
            _this->SetWindowSize(_this, window);
slouken@5249
  1589
        }
slouken@5276
  1590
        if (window->w == w && window->h == h) {
slouken@5276
  1591
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1592
            SDL_OnWindowResized(window);
slouken@5276
  1593
        }
slouken@2753
  1594
    }
slouken@1895
  1595
}
slouken@1895
  1596
slouken@1895
  1597
void
slouken@3685
  1598
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1599
{
aschiffler@6984
  1600
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1601
    if (w) {
aschiffler@6984
  1602
        *w = window->w;
slouken@5246
  1603
    }
aschiffler@6984
  1604
    if (h) {
stopiccot@6681
  1605
        *h = window->h;
slouken@7191
  1606
    }
stopiccot@6681
  1607
}
stopiccot@6681
  1608
stopiccot@6681
  1609
void
stopiccot@6681
  1610
SDL_SetWindowMinimumSize(SDL_Window * window, int min_w, int min_h)
stopiccot@6681
  1611
{
stopiccot@6681
  1612
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1613
    if (min_w <= 0) {
aschiffler@6984
  1614
        SDL_InvalidParamError("min_w");
aschiffler@6984
  1615
        return;
aschiffler@6984
  1616
    }
aschiffler@6984
  1617
    if (min_h <= 0) {
aschiffler@6984
  1618
        SDL_InvalidParamError("min_h");
aschiffler@6984
  1619
        return;
aschiffler@6984
  1620
    }
slouken@7191
  1621
stopiccot@6681
  1622
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
stopiccot@6681
  1623
        window->min_w = min_w;
stopiccot@6681
  1624
        window->min_h = min_h;
stopiccot@6681
  1625
        if (_this->SetWindowMinimumSize) {
stopiccot@6681
  1626
            _this->SetWindowMinimumSize(_this, window);
slouken@2849
  1627
        }
stopiccot@6681
  1628
        /* Ensure that window is not smaller than minimal size */
stopiccot@6681
  1629
        SDL_SetWindowSize(window, SDL_max(window->w, window->min_w), SDL_max(window->h, window->min_h));
stopiccot@6681
  1630
    }
stopiccot@6681
  1631
}
stopiccot@6681
  1632
stopiccot@6681
  1633
void
stopiccot@6681
  1634
SDL_GetWindowMinimumSize(SDL_Window * window, int *min_w, int *min_h)
stopiccot@6681
  1635
{
aschiffler@6984
  1636
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1637
    if (min_w) {
aschiffler@6984
  1638
        *min_w = window->min_w;
stopiccot@6681
  1639
    }
aschiffler@6984
  1640
    if (min_h) {
stopiccot@6681
  1641
        *min_h = window->min_h;
slouken@2753
  1642
    }
slouken@1895
  1643
}
slouken@1895
  1644
slouken@1895
  1645
void
slouken@6788
  1646
SDL_SetWindowMaximumSize(SDL_Window * window, int max_w, int max_h)
slouken@6788
  1647
{
slouken@6788
  1648
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1649
    if (max_w <= 0) {
aschiffler@6984
  1650
        SDL_InvalidParamError("max_w");
aschiffler@6984
  1651
        return;
aschiffler@6984
  1652
    }
aschiffler@6984
  1653
    if (max_h <= 0) {
aschiffler@6984
  1654
        SDL_InvalidParamError("max_h");
aschiffler@6984
  1655
        return;
aschiffler@6984
  1656
    }
slouken@7191
  1657
slouken@6788
  1658
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@6788
  1659
        window->max_w = max_w;
slouken@6788
  1660
        window->max_h = max_h;
slouken@6788
  1661
        if (_this->SetWindowMaximumSize) {
slouken@6788
  1662
            _this->SetWindowMaximumSize(_this, window);
slouken@6788
  1663
        }
slouken@6788
  1664
        /* Ensure that window is not larger than maximal size */
slouken@6788
  1665
        SDL_SetWindowSize(window, SDL_min(window->w, window->max_w), SDL_min(window->h, window->max_h));
slouken@6788
  1666
    }
slouken@6788
  1667
}
slouken@6788
  1668
slouken@6788
  1669
void
slouken@6788
  1670
SDL_GetWindowMaximumSize(SDL_Window * window, int *max_w, int *max_h)
slouken@6788
  1671
{
aschiffler@6984
  1672
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1673
    if (max_w) {
aschiffler@6984
  1674
        *max_w = window->max_w;
slouken@6788
  1675
    }
aschiffler@6984
  1676
    if (max_h) {
slouken@6788
  1677
        *max_h = window->max_h;
slouken@6788
  1678
    }
slouken@6788
  1679
}
slouken@6788
  1680
slouken@6788
  1681
void
slouken@3685
  1682
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1683
{
slouken@3695
  1684
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1685
slouken@3695
  1686
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1687
        return;
slouken@2753
  1688
    }
slouken@1895
  1689
slouken@2753
  1690
    if (_this->ShowWindow) {
slouken@2753
  1691
        _this->ShowWindow(_this, window);
slouken@2753
  1692
    }
slouken@3685
  1693
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1694
}
slouken@1895
  1695
slouken@1895
  1696
void
slouken@3685
  1697
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1698
{
slouken@3695
  1699
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1700
slouken@3695
  1701
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1702
        return;
slouken@2753
  1703
    }
slouken@1895
  1704
slouken@5404
  1705
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1706
slouken@2753
  1707
    if (_this->HideWindow) {
slouken@2753
  1708
        _this->HideWindow(_this, window);
slouken@2753
  1709
    }
slouken@3685
  1710
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1711
}
slouken@1895
  1712
slouken@1895
  1713
void
slouken@3685
  1714
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1715
{
slouken@3695
  1716
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1717
slouken@3695
  1718
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1719
        return;
slouken@2753
  1720
    }
slouken@2753
  1721
    if (_this->RaiseWindow) {
slouken@2753
  1722
        _this->RaiseWindow(_this, window);
slouken@2753
  1723
    }
slouken@1895
  1724
}
slouken@1895
  1725
slouken@1895
  1726
void
slouken@3685
  1727
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1728
{
slouken@3695
  1729
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1730
slouken@3695
  1731
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1732
        return;
slouken@2753
  1733
    }
slouken@1895
  1734
slouken@2753
  1735
    if (_this->MaximizeWindow) {
slouken@2753
  1736
        _this->MaximizeWindow(_this, window);
slouken@2753
  1737
    }
slouken@1895
  1738
}
slouken@1895
  1739
slouken@1895
  1740
void
slouken@3685
  1741
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1742
{
slouken@3695
  1743
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1744
slouken@3695
  1745
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1746
        return;
slouken@2753
  1747
    }
slouken@1895
  1748
slouken@5404
  1749
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1750
slouken@2753
  1751
    if (_this->MinimizeWindow) {
slouken@2753
  1752
        _this->MinimizeWindow(_this, window);
slouken@2753
  1753
    }
slouken@1895
  1754
}
slouken@1895
  1755
slouken@1895
  1756
void
slouken@3685
  1757
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1758
{
slouken@3695
  1759
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1760
slouken@3695
  1761
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1762
        return;
slouken@2753
  1763
    }
slouken@1895
  1764
slouken@2753
  1765
    if (_this->RestoreWindow) {
slouken@2753
  1766
        _this->RestoreWindow(_this, window);
slouken@2753
  1767
    }
slouken@1895
  1768
}
slouken@1895
  1769
slouken@6755
  1770
#define FULLSCREEN_MASK ( SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN )
slouken@1895
  1771
int
slouken@6755
  1772
SDL_SetWindowFullscreen(SDL_Window * window, Uint32 flags)
slouken@1895
  1773
{
slouken@3695
  1774
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1775
slouken@7191
  1776
    flags &= FULLSCREEN_MASK;
slouken@7191
  1777
slouken@6755
  1778
    if ( flags == (window->flags & FULLSCREEN_MASK) ) {
slouken@2753
  1779
        return 0;
slouken@2753
  1780
    }
slouken@7191
  1781
slouken@7191
  1782
    /* clear the previous flags and OR in the new ones */
slouken@7191
  1783
    window->flags &= ~FULLSCREEN_MASK;
slouken@6755
  1784
    window->flags |= flags;
slouken@6755
  1785
slouken@5404
  1786
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1787
slouken@2753
  1788
    return 0;
slouken@1895
  1789
}
slouken@1895
  1790
slouken@5166
  1791
static SDL_Surface *
slouken@5166
  1792
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1793
{
slouken@5166
  1794
    Uint32 format;
slouken@5166
  1795
    void *pixels;
slouken@5166
  1796
    int pitch;
slouken@5166
  1797
    int bpp;
slouken@5166
  1798
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1799
slouken@5166
  1800
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1801
        return NULL;
slouken@5166
  1802
    }
slouken@5166
  1803
slouken@5166
  1804
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1805
        return NULL;
slouken@5166
  1806
    }
slouken@5166
  1807
slouken@5166
  1808
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1809
        return NULL;
slouken@5166
  1810
    }
slouken@5166
  1811
slouken@5166
  1812
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1813
}
slouken@5166
  1814
slouken@5166
  1815
SDL_Surface *
slouken@5166
  1816
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1817
{
slouken@5166
  1818
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1819
slouken@5172
  1820
    if (!window->surface_valid) {
slouken@5172
  1821
        if (window->surface) {
slouken@5288
  1822
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1823
            SDL_FreeSurface(window->surface);
slouken@5172
  1824
        }
slouken@5166
  1825
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1826
        if (window->surface) {
slouken@5172
  1827
            window->surface_valid = SDL_TRUE;
slouken@5288
  1828
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1829
        }
slouken@5166
  1830
    }
slouken@5166
  1831
    return window->surface;
slouken@5166
  1832
}
slouken@5166
  1833
slouken@5166
  1834
int
slouken@5166
  1835
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1836
{
slouken@5166
  1837
    SDL_Rect full_rect;
slouken@5166
  1838
slouken@5166
  1839
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1840
slouken@5166
  1841
    full_rect.x = 0;
slouken@5166
  1842
    full_rect.y = 0;
slouken@5166
  1843
    full_rect.w = window->w;
slouken@5166
  1844
    full_rect.h = window->h;
slouken@5297
  1845
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1846
}
slouken@5166
  1847
slouken@5166
  1848
int
slouken@7014
  1849
SDL_UpdateWindowSurfaceRects(SDL_Window * window, const SDL_Rect * rects,
slouken@5297
  1850
                             int numrects)
slouken@5166
  1851
{
slouken@5166
  1852
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1853
slouken@5172
  1854
    if (!window->surface_valid) {
icculus@7037
  1855
        return SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1856
    }
slouken@5166
  1857
slouken@5297
  1858
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1859
}
slouken@5166
  1860
slouken@5466
  1861
int
slouken@5466
  1862
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1863
{
slouken@5466
  1864
    Uint16 ramp[256];
slouken@5466
  1865
    int status;
slouken@5466
  1866
slouken@5466
  1867
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1868
slouken@5466
  1869
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1870
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1871
    if (status == 0) {
slouken@5466
  1872
        window->brightness = brightness;
slouken@5466
  1873
    }
slouken@5466
  1874
    return status;
slouken@5466
  1875
}
slouken@5466
  1876
slouken@5466
  1877
float
slouken@5466
  1878
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1879
{
slouken@5466
  1880
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1881
slouken@5466
  1882
    return window->brightness;
slouken@5466
  1883
}
slouken@5466
  1884
slouken@5466
  1885
int
slouken@5466
  1886
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1887
                                            const Uint16 * green,
slouken@5466
  1888
                                            const Uint16 * blue)
slouken@5466
  1889
{
slouken@5466
  1890
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1891
slouken@5466
  1892
    if (!_this->SetWindowGammaRamp) {
icculus@7037
  1893
        return SDL_Unsupported();
slouken@5466
  1894
    }
slouken@5466
  1895
slouken@5466
  1896
    if (!window->gamma) {
slouken@5466
  1897
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1898
            return -1;
slouken@5466
  1899
        }
slouken@5466
  1900
    }
slouken@5466
  1901
slouken@5466
  1902
    if (red) {
slouken@5466
  1903
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1904
    }
slouken@5466
  1905
    if (green) {
slouken@5466
  1906
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1907
    }
slouken@5466
  1908
    if (blue) {
slouken@5466
  1909
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1910
    }
slouken@5466
  1911
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1912
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1913
    } else {
slouken@5466
  1914
        return 0;
slouken@5466
  1915
    }
slouken@5466
  1916
}
slouken@5466
  1917
slouken@5466
  1918
int
slouken@5466
  1919
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1920
                                            Uint16 * green,
slouken@5466
  1921
                                            Uint16 * blue)
slouken@5466
  1922
{
slouken@5466
  1923
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1924
slouken@5466
  1925
    if (!window->gamma) {
slouken@5466
  1926
        int i;
slouken@5466
  1927
slouken@5466
  1928
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1929
        if (!window->gamma) {
icculus@7037
  1930
            return SDL_OutOfMemory();
slouken@5466
  1931
        }
slouken@5466
  1932
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1933
slouken@5466
  1934
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1935
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1936
                return -1;
slouken@5466
  1937
            }
slouken@5466
  1938
        } else {
slouken@5466
  1939
            /* Create an identity gamma ramp */
slouken@5466
  1940
            for (i = 0; i < 256; ++i) {
slouken@5466
  1941
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1942
slouken@5466
  1943
                window->gamma[0*256+i] = value;
slouken@5466
  1944
                window->gamma[1*256+i] = value;
slouken@5466
  1945
                window->gamma[2*256+i] = value;
slouken@5466
  1946
            }
slouken@5466
  1947
        }
slouken@5466
  1948
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1949
    }
slouken@5466
  1950
slouken@5466
  1951
    if (red) {
slouken@5466
  1952
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1953
    }
slouken@5466
  1954
    if (green) {
slouken@5466
  1955
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1956
    }
slouken@5466
  1957
    if (blue) {
slouken@5466
  1958
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1959
    }
slouken@5466
  1960
    return 0;
slouken@5466
  1961
}
slouken@5466
  1962
slouken@6662
  1963
void
slouken@2876
  1964
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1965
{
slouken@6662
  1966
    if (_this->SetWindowGrab) {
slouken@6662
  1967
        SDL_bool grabbed;
slouken@6662
  1968
        if ((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@6662
  1969
            (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@6662
  1970
            grabbed = SDL_TRUE;
slouken@6662
  1971
        } else {
slouken@6662
  1972
            grabbed = SDL_FALSE;
slouken@6662
  1973
        }
slouken@6662
  1974
        _this->SetWindowGrab(_this, window, grabbed);
slouken@2753
  1975
    }
slouken@1895
  1976
}
slouken@1895
  1977
slouken@5403
  1978
void
slouken@5403
  1979
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  1980
{
slouken@5403
  1981
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  1982
slouken@5404
  1983
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  1984
        return;
slouken@5403
  1985
    }
slouken@5403
  1986
    if (grabbed) {
slouken@5403
  1987
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1988
    } else {
slouken@5403
  1989
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  1990
    }
slouken@5403
  1991
    SDL_UpdateWindowGrab(window);
slouken@5403
  1992
}
slouken@5403
  1993
slouken@5403
  1994
SDL_bool
slouken@3685
  1995
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  1996
{
slouken@5466
  1997
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  1998
slouken@2753
  1999
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  2000
}
slouken@1895
  2001
slouken@1895
  2002
void
slouken@1895
  2003
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  2004
{
slouken@5404
  2005
    SDL_OnWindowRestored(window);
slouken@1895
  2006
}
slouken@1895
  2007
slouken@1895
  2008
void
slouken@1895
  2009
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  2010
{
slouken@5404
  2011
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  2012
}
slouken@1895
  2013
slouken@1895
  2014
void
slouken@5166
  2015
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  2016
{
slouken@5172
  2017
    window->surface_valid = SDL_FALSE;
slouken@5276
  2018
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  2019
}
slouken@5166
  2020
slouken@5166
  2021
void
slouken@3502
  2022
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  2023
{
slouken@5404
  2024
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  2025
}
slouken@3502
  2026
slouken@3502
  2027
void
slouken@3502
  2028
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  2029
{
slouken@3685
  2030
    SDL_RaiseWindow(window);
slouken@5404
  2031
slouken@5404
  2032
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  2033
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  2034
    }
slouken@3502
  2035
}
slouken@3502
  2036
slouken@3502
  2037
void
jorgen@7089
  2038
SDL_OnWindowEnter(SDL_Window * window)
jorgen@7089
  2039
{
jorgen@7089
  2040
    if (_this->OnWindowEnter) {
jorgen@7089
  2041
        _this->OnWindowEnter(_this, window);
jorgen@7089
  2042
    }
jorgen@7089
  2043
}
jorgen@7089
  2044
jorgen@7089
  2045
void
jorgen@7089
  2046
SDL_OnWindowLeave(SDL_Window * window)
jorgen@7089
  2047
{
jorgen@7089
  2048
}
jorgen@7089
  2049
jorgen@7089
  2050
void
slouken@1895
  2051
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  2052
{
jorgen@7107
  2053
    SDL_Mouse *mouse = SDL_GetMouse();
jorgen@7107
  2054
slouken@5466
  2055
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2056
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  2057
    }
slouken@5466
  2058
jorgen@7107
  2059
    if (mouse && mouse->relative_mode) {
jorgen@7107
  2060
        SDL_SetMouseFocus(window);
jorgen@7107
  2061
        SDL_WarpMouseInWindow(window, window->w/2, window->h/2);
jorgen@7107
  2062
    }
jorgen@7107
  2063
slouken@6662
  2064
    SDL_UpdateWindowGrab(window);
slouken@1895
  2065
}
slouken@1895
  2066
slouken@6755
  2067
static SDL_bool ShouldMinimizeOnFocusLoss()
slouken@6755
  2068
{
slouken@7191
  2069
    const char *hint = SDL_GetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS);
slouken@7191
  2070
    if (hint) {
slouken@7191
  2071
        if (*hint == '0') {
slouken@7191
  2072
            return SDL_FALSE;
slouken@7191
  2073
        } else {
slouken@7191
  2074
            return SDL_TRUE;
slouken@7191
  2075
        }
slouken@7191
  2076
    }
slouken@7191
  2077
    return SDL_TRUE;
slouken@6755
  2078
}
slouken@6755
  2079
slouken@1895
  2080
void
slouken@1895
  2081
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  2082
{
slouken@5466
  2083
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2084
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  2085
    }
slouken@3512
  2086
slouken@6662
  2087
    SDL_UpdateWindowGrab(window);
slouken@5466
  2088
jorgen@7269
  2089
    /* If we're fullscreen and lose focus, minimize unless the hint tells us otherwise */
slouken@7191
  2090
     if ((window->flags & SDL_WINDOW_FULLSCREEN) && ShouldMinimizeOnFocusLoss() ) {
slouken@7191
  2091
            SDL_MinimizeWindow(window);
slouken@5466
  2092
    }
slouken@1895
  2093
}
slouken@1895
  2094
slouken@3685
  2095
SDL_Window *
slouken@1895
  2096
SDL_GetFocusWindow(void)
slouken@1895
  2097
{
slouken@3685
  2098
    SDL_Window *window;
slouken@1895
  2099
slouken@2753
  2100
    if (!_this) {
slouken@3685
  2101
        return NULL;
slouken@3685
  2102
    }
slouken@5246
  2103
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  2104
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  2105
            return window;
slouken@2753
  2106
        }
slouken@2753
  2107
    }
slouken@3685
  2108
    return NULL;
slouken@1895
  2109
}
slouken@1895
  2110
slouken@1895
  2111
void
slouken@3685
  2112
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  2113
{
slouken@3685
  2114
    SDL_VideoDisplay *display;
slouken@3685
  2115
slouken@3695
  2116
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  2117
slouken@6214
  2118
    /* Restore video mode, etc. */
slouken@6214
  2119
    SDL_HideWindow(window);
slouken@6214
  2120
slouken@6214
  2121
    /* Make sure this window no longer has focus */
slouken@6214
  2122
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  2123
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  2124
    }
slouken@6214
  2125
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  2126
        SDL_SetMouseFocus(NULL);
slouken@6214
  2127
    }
slouken@6214
  2128
icculus@5563
  2129
    /* make no context current if this is the current context window. */
icculus@5563
  2130
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  2131
        if (_this->current_glwin == window) {
slouken@6496
  2132
            SDL_GL_MakeCurrent(window, NULL);
icculus@5563
  2133
        }
icculus@5563
  2134
    }
icculus@5563
  2135
slouken@5169
  2136
    if (window->surface) {
slouken@5288
  2137
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  2138
        SDL_FreeSurface(window->surface);
slouken@5169
  2139
    }
slouken@5166
  2140
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  2141
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  2142
    }
slouken@3685
  2143
    if (_this->DestroyWindow) {
slouken@3685
  2144
        _this->DestroyWindow(_this, window);
slouken@3685
  2145
    }
slouken@3685
  2146
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  2147
        SDL_GL_UnloadLibrary();
slouken@3685
  2148
    }
slouken@3685
  2149
slouken@5246
  2150
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  2151
    if (display->fullscreen_window == window) {
slouken@5246
  2152
        display->fullscreen_window = NULL;
slouken@5246
  2153
    }
slouken@5246
  2154
slouken@4901
  2155
    /* Now invalidate magic */
slouken@4897
  2156
    window->magic = NULL;
slouken@4897
  2157
slouken@5165
  2158
    /* Free memory associated with the window */
slouken@5165
  2159
    if (window->title) {
slouken@5165
  2160
        SDL_free(window->title);
slouken@5165
  2161
    }
slouken@5466
  2162
    if (window->gamma) {
slouken@5466
  2163
        SDL_free(window->gamma);
slouken@5466
  2164
    }
slouken@5165
  2165
    while (window->data) {
slouken@5165
  2166
        SDL_WindowUserData *data = window->data;
slouken@5165
  2167
slouken@5165
  2168
        window->data = data->next;
slouken@5165
  2169
        SDL_free(data->name);
slouken@5165
  2170
        SDL_free(data);
slouken@5165
  2171
    }
slouken@5165
  2172
slouken@3685
  2173
    /* Unlink the window from the list */
slouken@3693
  2174
    if (window->next) {
slouken@3693
  2175
        window->next->prev = window->prev;
slouken@3693
  2176
    }
slouken@3685
  2177
    if (window->prev) {
slouken@3685
  2178
        window->prev->next = window->next;
slouken@3685
  2179
    } else {
slouken@5246
  2180
        _this->windows = window->next;
slouken@3685
  2181
    }
slouken@3685
  2182
slouken@3685
  2183
    SDL_free(window);
slouken@1895
  2184
}
slouken@1895
  2185
slouken@3025
  2186
SDL_bool
slouken@3025
  2187
SDL_IsScreenSaverEnabled()
slouken@3025
  2188
{
slouken@3025
  2189
    if (!_this) {
slouken@3025
  2190
        return SDL_TRUE;
slouken@3025
  2191
    }
slouken@3025
  2192
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2193
}
slouken@3025
  2194
slouken@3025
  2195
void
slouken@3025
  2196
SDL_EnableScreenSaver()
slouken@3025
  2197
{
slouken@3025
  2198
    if (!_this) {
slouken@3025
  2199
        return;
slouken@3025
  2200
    }
slouken@3025
  2201
    if (!_this->suspend_screensaver) {
slouken@3025
  2202
        return;
slouken@3025
  2203
    }
slouken@3025
  2204
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2205
    if (_this->SuspendScreenSaver) {
slouken@3025
  2206
        _this->SuspendScreenSaver(_this);
slouken@3025
  2207
    }
slouken@3025
  2208
}
slouken@3025
  2209
slouken@3025
  2210
void
slouken@3025
  2211
SDL_DisableScreenSaver()
slouken@3025
  2212
{
slouken@3025
  2213
    if (!_this) {
slouken@3025
  2214
        return;
slouken@3025
  2215
    }
slouken@3025
  2216
    if (_this->suspend_screensaver) {
slouken@3025
  2217
        return;
slouken@3025
  2218
    }
slouken@3025
  2219
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2220
    if (_this->SuspendScreenSaver) {
slouken@3025
  2221
        _this->SuspendScreenSaver(_this);
slouken@3025
  2222
    }
slouken@3025
  2223
}
slouken@3025
  2224
slouken@1895
  2225
void
slouken@1895
  2226
SDL_VideoQuit(void)
slouken@1895
  2227
{
slouken@2753
  2228
    int i, j;
slouken@1895
  2229
slouken@2753
  2230
    if (!_this) {
slouken@2753
  2231
        return;
slouken@2753
  2232
    }
slouken@5123
  2233
slouken@2753
  2234
    /* Halt event processing before doing anything else */
slouken@7360
  2235
    SDL_TouchQuit();
slouken@5123
  2236
    SDL_MouseQuit();
slouken@5123
  2237
    SDL_KeyboardQuit();
slouken@7360
  2238
    SDL_QuitSubSystem(SDL_INIT_EVENTS);
slouken@5123
  2239
slouken@3029
  2240
    SDL_EnableScreenSaver();
slouken@1895
  2241
slouken@2753
  2242
    /* Clean up the system video */
slouken@5246
  2243
    while (_this->windows) {
slouken@5246
  2244
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2245
    }
slouken@2753
  2246
    _this->VideoQuit(_this);
slouken@1895
  2247
slouken@2753
  2248
    for (i = _this->num_displays; i--;) {
slouken@2753
  2249
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2250
        for (j = display->num_display_modes; j--;) {
slouken@2753
  2251
            if (display->display_modes[j].driverdata) {
slouken@2753
  2252
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  2253
                display->display_modes[j].driverdata = NULL;
slouken@2753
  2254
            }
slouken@2753
  2255
        }
slouken@2753
  2256
        if (display->display_modes) {
slouken@2753
  2257
            SDL_free(display->display_modes);
slouken@2753
  2258
            display->display_modes = NULL;
slouken@2753
  2259
        }
slouken@2753
  2260
        if (display->desktop_mode.driverdata) {
slouken@2753
  2261
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  2262
            display->desktop_mode.driverdata = NULL;
slouken@2753
  2263
        }
slouken@2753
  2264
        if (display->driverdata) {
slouken@2753
  2265
            SDL_free(display->driverdata);
slouken@2753
  2266
            display->driverdata = NULL;
slouken@2753
  2267
        }
slouken@2753
  2268
    }
slouken@2753
  2269
    if (_this->displays) {
slouken@6787
  2270
        for (i = 0; i < _this->num_displays; ++i) {
slouken@6787
  2271
            SDL_free(_this->displays[i].name);
slouken@6787
  2272
        }
slouken@2753
  2273
        SDL_free(_this->displays);
slouken@2753
  2274
        _this->displays = NULL;
slouken@6787
  2275
        _this->num_displays = 0;
slouken@2753
  2276
    }
slouken@4495
  2277
    if (_this->clipboard_text) {
slouken@4495
  2278
        SDL_free(_this->clipboard_text);
slouken@4495
  2279
        _this->clipboard_text = NULL;
slouken@4495
  2280
    }
slouken@2753
  2281
    _this->free(_this);
slouken@2753
  2282
    _this = NULL;
slouken@0
  2283
}
slouken@0
  2284
slouken@1895
  2285
int
slouken@1895
  2286
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2287
{
slouken@2753
  2288
    int retval;
slouken@0
  2289
slouken@2753
  2290
    if (!_this) {
icculus@7037
  2291
        return SDL_UninitializedVideo();
slouken@2753
  2292
    }
slouken@3057
  2293
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2294
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
icculus@7037
  2295
            return SDL_SetError("OpenGL library already loaded");
slouken@3057
  2296
        }
slouken@3057
  2297
        retval = 0;
slouken@3057
  2298
    } else {
slouken@3057
  2299
        if (!_this->GL_LoadLibrary) {
icculus@7037
  2300
            return  SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2301
        }
slouken@2753
  2302
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2303
    }
slouken@3057
  2304
    if (retval == 0) {
slouken@3057
  2305
        ++_this->gl_config.driver_loaded;
slouken@2753
  2306
    }
slouken@2753
  2307
    return (retval);
slouken@0
  2308
}
slouken@0
  2309
slouken@2753
  2310
void *
slouken@1895
  2311
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2312
{
slouken@2753
  2313
    void *func;
slouken@0
  2314
slouken@2753
  2315
    if (!_this) {
slouken@2753
  2316
        SDL_UninitializedVideo();
slouken@2753
  2317
        return NULL;
slouken@2753
  2318
    }
slouken@2753
  2319
    func = NULL;
slouken@2753
  2320
    if (_this->GL_GetProcAddress) {
slouken@2753
  2321
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2322
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2323
        } else {
slouken@2753
  2324
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2325
        }
slouken@2753
  2326
    } else {
slouken@2753
  2327
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2328
    }
slouken@2753
  2329
    return func;
slouken@0
  2330
}
slouken@0
  2331
slouken@3057
  2332
void
slouken@3057
  2333
SDL_GL_UnloadLibrary(void)
slouken@3057
  2334
{
slouken@3057
  2335
    if (!_this) {
slouken@3057
  2336
        SDL_UninitializedVideo();
slouken@3057
  2337
        return;
slouken@3057
  2338
    }
slouken@3057
  2339
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2340
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2341
            return;
slouken@3057
  2342
        }
slouken@3057
  2343
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2344
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2345
        }
slouken@3057
  2346
    }
slouken@3057
  2347
}
slouken@3057
  2348
icculus@7210
  2349
static __inline__ SDL_bool
icculus@7210
  2350
isAtLeastGL3(const char *verstr)
icculus@7210
  2351
{
icculus@7210
  2352
    return ( verstr && (SDL_atoi(verstr) >= 3) );
icculus@7210
  2353
}
icculus@7210
  2354
slouken@1926
  2355
SDL_bool
slouken@1926
  2356
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2357
{
slouken@5209
  2358
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2359
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2360
    const char *extensions;
slouken@2753
  2361
    const char *start;
slouken@2753
  2362
    const char *where, *terminator;
slouken@1926
  2363
slouken@2753
  2364
    /* Extension names should not have spaces. */
slouken@2753
  2365
    where = SDL_strchr(extension, ' ');
slouken@2753
  2366
    if (where || *extension == '\0') {
slouken@2753
  2367
        return SDL_FALSE;
slouken@2753
  2368
    }
slouken@2753
  2369
    /* See if there's an environment variable override */
slouken@2753
  2370
    start = SDL_getenv(extension);
slouken@2753
  2371
    if (start && *start == '0') {
slouken@2753
  2372
        return SDL_FALSE;
slouken@2753
  2373
    }
icculus@7210
  2374
slouken@2753
  2375
    /* Lookup the available extensions */
icculus@7210
  2376
slouken@2753
  2377
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
icculus@7210
  2378
    if (!glGetStringFunc) {
icculus@7210
  2379
        return SDL_FALSE;
slouken@2753
  2380
    }
icculus@7210
  2381
icculus@7210
  2382
    if (isAtLeastGL3((const char *) glGetStringFunc(GL_VERSION))) {
icculus@7210
  2383
        const GLubyte *(APIENTRY * glGetStringiFunc) (GLenum, GLuint);
icculus@7210
  2384
        void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
icculus@7210
  2385
        GLint num_exts = 0;
icculus@7210
  2386
        GLint i;
icculus@7210
  2387
icculus@7210
  2388
        glGetStringiFunc = SDL_GL_GetProcAddress("glGetStringi");
icculus@7210
  2389
        glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
icculus@7210
  2390
        if ((!glGetStringiFunc) || (!glGetIntegervFunc)) {
icculus@7210
  2391
            return SDL_FALSE;
icculus@7210
  2392
        }
icculus@7210
  2393
icculus@7212
  2394
        #ifndef GL_NUM_EXTENSIONS
icculus@7212
  2395
        #define GL_NUM_EXTENSIONS 0x821D
icculus@7212
  2396
        #endif
icculus@7210
  2397
        glGetIntegervFunc(GL_NUM_EXTENSIONS, &num_exts);
icculus@7210
  2398
        for (i = 0; i < num_exts; i++) {
icculus@7210
  2399
            const char *thisext = (const char *) glGetStringiFunc(GL_EXTENSIONS, i);
icculus@7210
  2400
            if (SDL_strcmp(thisext, extension) == 0) {
icculus@7210
  2401
                return SDL_TRUE;
icculus@7210
  2402
            }
icculus@7210
  2403
        }
icculus@7210
  2404
icculus@7210
  2405
        return SDL_FALSE;
icculus@7210
  2406
    }
icculus@7210
  2407
icculus@7210
  2408
    /* Try the old way with glGetString(GL_EXTENSIONS) ... */
icculus@7210
  2409
icculus@7210
  2410
    extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2411
    if (!extensions) {
slouken@2753
  2412
        return SDL_FALSE;
slouken@2753
  2413
    }
slouken@2753
  2414
    /*
slouken@2753
  2415
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2416
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2417
     */
slouken@1926
  2418
slouken@2753
  2419
    start = extensions;
slouken@1926
  2420
slouken@2753
  2421
    for (;;) {
slouken@2753
  2422
        where = SDL_strstr(start, extension);
slouken@2753
  2423
        if (!where)
slouken@2753
  2424
            break;
slouken@1926
  2425
slouken@2753
  2426
        terminator = where + SDL_strlen(extension);
slouken@2753
  2427
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2428
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2429
                return SDL_TRUE;
slouken@1926
  2430
slouken@2753
  2431
        start = terminator;
slouken@2753
  2432
    }
slouken@2753
  2433
    return SDL_FALSE;
slouken@1926
  2434
#else
slouken@2753
  2435
    return SDL_FALSE;
slouken@1926
  2436
#endif
slouken@1926
  2437
}
slouken@1926
  2438
slouken@1895
  2439
int
slouken@1895
  2440
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2441
{
slouken@5209
  2442
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2443
    int retval;
slouken@0
  2444
slouken@2753
  2445
    if (!_this) {
icculus@7037
  2446
        return SDL_UninitializedVideo();
slouken@2753
  2447
    }
slouken@2753
  2448
    retval = 0;
slouken@2753
  2449
    switch (attr) {
slouken@2753
  2450
    case SDL_GL_RED_SIZE:
slouken@2753
  2451
        _this->gl_config.red_size = value;
slouken@2753
  2452
        break;
slouken@2753
  2453
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2454
        _this->gl_config.green_size = value;
slouken@2753
  2455
        break;
slouken@2753
  2456
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2457
        _this->gl_config.blue_size = value;
slouken@2753
  2458
        break;
slouken@2753
  2459
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2460
        _this->gl_config.alpha_size = value;
slouken@2753
  2461
        break;
slouken@2753
  2462
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2463
        _this->gl_config.double_buffer = value;
slouken@2753
  2464
        break;
slouken@2753
  2465
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2466
        _this->gl_config.buffer_size = value;
slouken@2753
  2467
        break;
slouken@2753
  2468
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2469
        _this->gl_config.depth_size = value;
slouken@2753
  2470
        break;
slouken@2753
  2471
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2472
        _this->gl_config.stencil_size = value;
slouken@2753
  2473
        break;
slouken@2753
  2474
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2475
        _this->gl_config.accum_red_size = value;
slouken@2753
  2476
        break;
slouken@2753
  2477
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2478
        _this->gl_config.accum_green_size = value;
slouken@2753
  2479
        break;
slouken@2753
  2480
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2481
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2482
        break;
slouken@2753
  2483
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2484
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2485
        break;
slouken@2753
  2486
    case SDL_GL_STEREO:
slouken@2753
  2487
        _this->gl_config.stereo = value;
slouken@2753
  2488
        break;
slouken@2753
  2489
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2490
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2491
        break;
slouken@2753
  2492
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2493
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2494
        break;
slouken@2753
  2495
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2496
        _this->gl_config.accelerated = value;
slouken@2753
  2497
        break;
slouken@2753
  2498
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2499
        _this->gl_config.retained_backing = value;
slouken@2753
  2500
        break;
slouken@3100
  2501
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2502
        _this->gl_config.major_version = value;
slouken@3100
  2503
        break;
slouken@3100
  2504
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2505
        _this->gl_config.minor_version = value;
slouken@3100
  2506
        break;
slouken@6370
  2507
    case SDL_GL_CONTEXT_EGL:
slouken@6370
  2508
        _this->gl_config.use_egl = value;
slouken@6370
  2509
        break;
slouken@6296
  2510
    case SDL_GL_CONTEXT_FLAGS:
slouken@6393
  2511
        if( value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@7191
  2512
              SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@7191
  2513
              SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@7191
  2514
              SDL_GL_CONTEXT_RESET_ISOLATION_FLAG) ) {
slouken@7191
  2515
        retval = SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@7191
  2516
        break;
slouken@7191
  2517
    }
slouken@6296
  2518
        _this->gl_config.flags = value;
slouken@6296
  2519
        break;
slouken@6296
  2520
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6393
  2521
        if( value != 0 &&
slouken@7191
  2522
        value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@7191
  2523
        value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@7191
  2524
        value != SDL_GL_CONTEXT_PROFILE_ES ) {
slouken@7191
  2525
        retval = SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@7191
  2526
        break;
slouken@7191
  2527
    }
slouken@6296
  2528
        _this->gl_config.profile_mask = value;
slouken@6296
  2529
        break;
slouken@6393
  2530
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@6393
  2531
        _this->gl_config.share_with_current_context = value;
slouken@7191
  2532
    break;
slouken@2753
  2533
    default:
icculus@7037
  2534
        retval = SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2535
        break;
slouken@2753
  2536
    }
slouken@2753
  2537
    return retval;
slouken@1936
  2538
#else
icculus@7037
  2539
    return SDL_Unsupported();
slouken@2753
  2540
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2541
}
slouken@0
  2542
slouken@1895
  2543
int
slouken@1936
  2544
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2545
{
slouken@5209
  2546
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2547
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2548
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2549
    GLenum attrib = 0;
slouken@3099
  2550
    GLenum error = 0;
slouken@1912
  2551
slouken@2753
  2552
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2553
    if (!glGetIntegervFunc) {
slouken@2753
  2554
        return -1;
slouken@2753
  2555
    }
slouken@3099
  2556
slouken@3099
  2557
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2558
    if (!glGetErrorFunc) {
slouken@3099
  2559
        return -1;
slouken@3099
  2560
    }
slouken@3099
  2561
slouken@3099
  2562
    /* Clear value in any case */
slouken@3139
  2563
    *value = 0;
slouken@3099
  2564
slouken@2753
  2565
    switch (attr) {
slouken@2753
  2566
    case SDL_GL_RED_SIZE:
slouken@2753
  2567
        attrib = GL_RED_BITS;
slouken@2753
  2568
        break;
slouken@2753
  2569
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2570
        attrib = GL_BLUE_BITS;
slouken@2753
  2571
        break;
slouken@2753
  2572
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2573
        attrib = GL_GREEN_BITS;
slouken@2753
  2574
        break;
slouken@2753
  2575
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2576
        attrib = GL_ALPHA_BITS;
slouken@2753
  2577
        break;
slouken@2753
  2578
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2579
#if SDL_VIDEO_OPENGL
slouken@2753
  2580
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2581
        break;
hfutrell@2745
  2582
#else
slouken@3099
  2583
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2584
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2585
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2586
        *value = _this->gl_config.double_buffer;
slouken@2753
  2587
        return 0;
hfutrell@2745
  2588
#endif
slouken@2753
  2589
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2590
        attrib = GL_DEPTH_BITS;
slouken@2753
  2591
        break;
slouken@2753
  2592
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2593
        attrib = GL_STENCIL_BITS;
slouken@2753
  2594
        break;
slouken@5209
  2595
#if SDL_VIDEO_OPENGL
slouken@2753
  2596
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2597
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2598
        break;
slouken@2753
  2599
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2600
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2601
        break;
slouken@2753
  2602
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2603
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2604
        break;
slouken@2753
  2605
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2606
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2607
        break;
slouken@2753
  2608
    case SDL_GL_STEREO:
slouken@2753
  2609
        attrib = GL_STEREO;
slouken@2753
  2610
        break;
hfutrell@2745
  2611
#else
slouken@2753
  2612
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2613
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2614
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2615
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2616
    case SDL_GL_STEREO:
slouken@2753
  2617
        /* none of these are supported in OpenGL ES */
slouken@2753
  2618
        *value = 0;
slouken@2753
  2619
        return 0;
hfutrell@2745
  2620
#endif
slouken@2753
  2621
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2622
#if SDL_VIDEO_OPENGL
slouken@2753
  2623
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2624
#else
slouken@2753
  2625
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2626
#endif
slouken@2753
  2627
        break;
slouken@2753
  2628
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2629
#if SDL_VIDEO_OPENGL
slouken@2753
  2630
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2631
#else
slouken@2753
  2632
        attrib = GL_SAMPLES;
hfutrell@2745
  2633
#endif
slouken@2753
  2634
        break;
slouken@2753
  2635
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2636
        {
slouken@2753
  2637
            GLint bits = 0;
slouken@2753
  2638
            GLint component;
slouken@1936
  2639
slouken@2753
  2640
            /*
slouken@2753
  2641
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2642
             * for this!
slouken@2753
  2643
             */
slouken@2753
  2644
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2645
            bits += component;
slouken@2753
  2646
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2647
            bits += component;
slouken@2753
  2648
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2649
            bits += component;
slouken@2753
  2650
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2651
            bits += component;
slouken@1936
  2652
slouken@2753
  2653
            *value = bits;
slouken@2753
  2654
            return 0;
slouken@2753
  2655
        }
slouken@2753
  2656
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2657
        {
slouken@2753
  2658
            /* FIXME: How do we get this information? */
slouken@3571
  2659
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2660
            return 0;