src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 06 Feb 2011 10:24:08 -0800
changeset 5210 1be088cec098
parent 5209 115fff0641ee
child 5211 fb058f09061d
permissions -rw-r--r--
At least allow returning the values that were set.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2010 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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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 "../events/SDL_events_c.h"
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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#endif /* SDL_VIDEO_OPENGL */
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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#if SDL_VIDEO_OPENGL_ES2
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 */
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#include "SDL_syswm.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WINDOWS
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    &WINDOWS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_BWINDOW
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    &BWINDOW_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PANDORA
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    &PND_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NDS
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    &NDS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_ANDROID
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    &Android_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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#define CHECK_WINDOW_MAGIC(window, retval) \
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    if (!_this) { \
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        SDL_UninitializedVideo(); \
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        return retval; \
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    } \
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    if (!window || window->magic != &_this->window_magic) { \
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        SDL_SetError("Invalid window"); \
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        return retval; \
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    }
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/* Various local functions */
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static void SDL_UpdateWindowGrab(SDL_Window * window);
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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);
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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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#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_Renderer *renderer;
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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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        data = (SDL_WindowTextureData *)SDL_calloc(1, sizeof(*data));
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        if (!data) {
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            SDL_OutOfMemory();
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            return -1;
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        }
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        SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, data);
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    }
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    renderer = data->renderer;
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    if (!renderer) {
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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 -1;
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        }
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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(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_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(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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        SDL_OutOfMemory();
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        return -1;
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    }
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    *pixels = data->pixels;
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    *pitch = data->pitch;
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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, int numrects, SDL_Rect * rects)
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{
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    SDL_WindowTextureData *data;
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#ifdef UPDATE_TEXTURE_SUBRECTS
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    void *src, *dst;
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    int src_pitch;
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    int dst_pitch;
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    int i, row, length;
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#endif
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data || !data->texture) {
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        SDL_SetError("No window texture data");
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        return -1;
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    }
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#ifdef UPDATE_TEXTURE_SUBRECTS
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    src_pitch = data->pitch;
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    for (i = 0; i < numrects; ++i) {
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        src = (void *)((Uint8 *)data->pixels +
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                        rects[i].y * src_pitch +
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                        rects[i].x * data->bytes_per_pixel);
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        if (SDL_LockTexture(data->texture, &rects[i], &dst, &dst_pitch) < 0) {
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            return -1;
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        }
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        length = rects[i].w * data->bytes_per_pixel;
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        for (row = rects[i].h; row--; ) {
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            SDL_memcpy(dst, src, length);
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            src = (Uint8*)src + src_pitch;
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            dst = (Uint8*)dst + dst_pitch;
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        }
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        SDL_UnlockTexture(data->texture);
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    }
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#else
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    if (SDL_UpdateTexture(data->texture, NULL, data->pixels, data->pitch) < 0) {
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        return -1;
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    }
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#endif
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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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    SDL_RenderPresent(data->renderer);
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    return 0;
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}
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static void
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SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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{
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    SDL_WindowTextureData *data;
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    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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    if (!data) {
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        return;
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    }
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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    }
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    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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    SDL_free(data);
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}
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   362
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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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    if (a.w != b.w) {
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        return b.w - a.w;
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    }
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    if (a.h != b.h) {
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        return b.h - a.h;
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    }
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    if (SDL_BITSPERPIXEL(a.format) != SDL_BITSPERPIXEL(b.format)) {
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        return SDL_BITSPERPIXEL(b.format) - SDL_BITSPERPIXEL(a.format);
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   377
    }
lestat@3178
   378
    if (SDL_PIXELLAYOUT(a.format) != SDL_PIXELLAYOUT(b.format)) {
lestat@3178
   379
        return SDL_PIXELLAYOUT(b.format) - SDL_PIXELLAYOUT(a.format);
lestat@3178
   380
    }
slouken@2753
   381
    if (a.refresh_rate != b.refresh_rate) {
slouken@2753
   382
        return b.refresh_rate - a.refresh_rate;
slouken@2753
   383
    }
slouken@2753
   384
    return 0;
slouken@1895
   385
}
slouken@1895
   386
slouken@1912
   387
static void
slouken@1912
   388
SDL_UninitializedVideo()
slouken@1912
   389
{
slouken@2753
   390
    SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   391
}
slouken@1912
   392
slouken@1895
   393
int
slouken@1895
   394
SDL_GetNumVideoDrivers(void)
slouken@1895
   395
{
slouken@2753
   396
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   397
}
slouken@1895
   398
slouken@2753
   399
const char *
slouken@1895
   400
SDL_GetVideoDriver(int index)
slouken@1895
   401
{
slouken@2753
   402
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   403
        return bootstrap[index]->name;
slouken@2753
   404
    }
slouken@2753
   405
    return NULL;
slouken@1895
   406
}
slouken@0
   407
slouken@0
   408
/*
slouken@0
   409
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   410
 */
slouken@1895
   411
int
slouken@5123
   412
SDL_VideoInit(const char *driver_name)
slouken@0
   413
{
slouken@2753
   414
    SDL_VideoDevice *video;
slouken@2753
   415
    int index;
slouken@2753
   416
    int i;
slouken@0
   417
slouken@3694
   418
    /* Check to make sure we don't overwrite '_this' */
slouken@3694
   419
    if (_this != NULL) {
slouken@3694
   420
        SDL_VideoQuit();
slouken@3694
   421
    }
slouken@3694
   422
slouken@2753
   423
    /* Start the event loop */
slouken@5123
   424
    if (SDL_StartEventLoop() < 0 ||
slouken@5123
   425
        SDL_KeyboardInit() < 0 ||
slouken@5123
   426
        SDL_MouseInit() < 0 ||
slouken@5123
   427
        SDL_TouchInit() < 0 ||
slouken@5123
   428
        SDL_QuitInit() < 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@2753
   440
            if (SDL_strcasecmp(bootstrap[i]->name, 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) {
slouken@2753
   457
            SDL_SetError("%s not available", driver_name);
slouken@2753
   458
        } else {
slouken@2753
   459
            SDL_SetError("No available video device");
slouken@2753
   460
        }
slouken@2753
   461
        return -1;
slouken@2753
   462
    }
slouken@2753
   463
    _this = video;
slouken@2753
   464
    _this->name = bootstrap[i]->name;
slouken@2753
   465
    _this->next_object_id = 1;
slouken@0
   466
slouken@0
   467
slouken@2753
   468
    /* Set some very sane GL defaults */
slouken@2753
   469
    _this->gl_config.driver_loaded = 0;
slouken@2753
   470
    _this->gl_config.dll_handle = NULL;
slouken@2753
   471
    _this->gl_config.red_size = 3;
slouken@2753
   472
    _this->gl_config.green_size = 3;
slouken@2753
   473
    _this->gl_config.blue_size = 2;
slouken@2753
   474
    _this->gl_config.alpha_size = 0;
slouken@2753
   475
    _this->gl_config.buffer_size = 0;
slouken@2753
   476
    _this->gl_config.depth_size = 16;
slouken@2753
   477
    _this->gl_config.stencil_size = 0;
slouken@2753
   478
    _this->gl_config.double_buffer = 1;
slouken@2753
   479
    _this->gl_config.accum_red_size = 0;
slouken@2753
   480
    _this->gl_config.accum_green_size = 0;
slouken@2753
   481
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   482
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   483
    _this->gl_config.stereo = 0;
slouken@2753
   484
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   485
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   486
    _this->gl_config.retained_backing = 1;
slouken@3571
   487
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@5209
   488
#if SDL_VIDEO_OPENGL
slouken@3100
   489
    _this->gl_config.major_version = 2;
slouken@3100
   490
    _this->gl_config.minor_version = 1;
slouken@5209
   491
#elif SDL_VIDEO_OPENGL_ES2
slouken@5209
   492
    _this->gl_config.major_version = 2;
slouken@5209
   493
    _this->gl_config.minor_version = 0;
slouken@5209
   494
#elif SDL_VIDEO_OPENGL_ES
slouken@5209
   495
    _this->gl_config.major_version = 1;
slouken@5209
   496
    _this->gl_config.minor_version = 1;
slouken@5209
   497
#endif
slouken@0
   498
slouken@2753
   499
    /* Initialize the video subsystem */
slouken@2753
   500
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   501
        SDL_VideoQuit();
slouken@2753
   502
        return -1;
slouken@2753
   503
    }
slouken@5166
   504
slouken@2753
   505
    /* Make sure some displays were added */
slouken@2753
   506
    if (_this->num_displays == 0) {
slouken@2753
   507
        SDL_SetError("The video driver did not add any displays");
slouken@2753
   508
        SDL_VideoQuit();
slouken@2753
   509
        return (-1);
slouken@2753
   510
    }
slouken@0
   511
slouken@5190
   512
    /* Add the renderer framebuffer emulation if desired */
slouken@5190
   513
    if (ShouldUseTextureFramebuffer()) {
slouken@5166
   514
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@5166
   515
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@5166
   516
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@5166
   517
    }
slouken@5166
   518
slouken@2753
   519
    /* We're ready to go! */
slouken@2753
   520
    return 0;
slouken@0
   521
}
slouken@0
   522
slouken@2753
   523
const char *
slouken@1895
   524
SDL_GetCurrentVideoDriver()
slouken@0
   525
{
slouken@2753
   526
    if (!_this) {
slouken@2753
   527
        SDL_UninitializedVideo();
slouken@2753
   528
        return NULL;
slouken@2753
   529
    }
slouken@2753
   530
    return _this->name;
slouken@0
   531
}
slouken@0
   532
slouken@1895
   533
SDL_VideoDevice *
slouken@4472
   534
SDL_GetVideoDevice(void)
slouken@0
   535
{
slouken@2753
   536
    return _this;
slouken@0
   537
}
slouken@0
   538
slouken@1895
   539
int
slouken@1895
   540
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   541
{
slouken@2753
   542
    SDL_VideoDisplay display;
slouken@0
   543
slouken@2753
   544
    SDL_zero(display);
slouken@2753
   545
    if (desktop_mode) {
slouken@2753
   546
        display.desktop_mode = *desktop_mode;
slouken@2753
   547
    }
slouken@2753
   548
    display.current_mode = display.desktop_mode;
slouken@1895
   549
slouken@2753
   550
    return SDL_AddVideoDisplay(&display);
slouken@0
   551
}
slouken@0
   552
slouken@1895
   553
int
slouken@1895
   554
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   555
{
slouken@2753
   556
    SDL_VideoDisplay *displays;
slouken@2753
   557
    int index = -1;
slouken@0
   558
slouken@2753
   559
    displays =
slouken@2753
   560
        SDL_realloc(_this->displays,
slouken@2753
   561
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   562
    if (displays) {
slouken@2753
   563
        index = _this->num_displays++;
slouken@2753
   564
        displays[index] = *display;
slouken@2753
   565
        displays[index].device = _this;
slouken@2753
   566
        _this->displays = displays;
slouken@2753
   567
    } else {
slouken@2753
   568
        SDL_OutOfMemory();
slouken@2753
   569
    }
slouken@2753
   570
    return index;
slouken@0
   571
}
slouken@0
   572
slouken@1895
   573
int
slouken@1895
   574
SDL_GetNumVideoDisplays(void)
slouken@0
   575
{
slouken@2753
   576
    if (!_this) {
slouken@2753
   577
        SDL_UninitializedVideo();
slouken@2753
   578
        return 0;
slouken@2753
   579
    }
slouken@2753
   580
    return _this->num_displays;
slouken@0
   581
}
slouken@0
   582
slouken@1895
   583
int
slouken@3528
   584
SDL_GetDisplayBounds(int index, SDL_Rect * rect)
slouken@3528
   585
{
slouken@3528
   586
    if (!_this) {
slouken@3528
   587
        SDL_UninitializedVideo();
slouken@3528
   588
        return -1;
slouken@3528
   589
    }
slouken@3528
   590
    if (index < 0 || index >= _this->num_displays) {
slouken@3528
   591
        SDL_SetError("index must be in the range 0 - %d",
slouken@3528
   592
                     _this->num_displays - 1);
slouken@3528
   593
        return -1;
slouken@3528
   594
    }
slouken@3528
   595
    if (rect) {
slouken@3528
   596
        SDL_VideoDisplay *display = &_this->displays[index];
slouken@3528
   597
slouken@3528
   598
        if (_this->GetDisplayBounds) {
slouken@3528
   599
            if (_this->GetDisplayBounds(_this, display, rect) < 0) {
slouken@3528
   600
                return -1;
slouken@3528
   601
            }
slouken@3528
   602
        } else {
slouken@3528
   603
            /* Assume that the displays are left to right */
slouken@3528
   604
            if (index == 0) {
slouken@3528
   605
                rect->x = 0;
slouken@3528
   606
                rect->y = 0;
slouken@3528
   607
            } else {
slouken@3528
   608
                SDL_GetDisplayBounds(index-1, rect);
slouken@3528
   609
                rect->x += rect->w;
slouken@3528
   610
            }
slouken@3528
   611
            rect->w = display->desktop_mode.w;
slouken@3528
   612
            rect->h = display->desktop_mode.h;
slouken@3528
   613
        }
slouken@3528
   614
    }
slouken@3528
   615
    return 0;
slouken@3528
   616
}
slouken@3528
   617
slouken@3528
   618
int
slouken@1895
   619
SDL_SelectVideoDisplay(int index)
slouken@0
   620
{
slouken@2753
   621
    if (!_this) {
slouken@2753
   622
        SDL_UninitializedVideo();
slouken@2753
   623
        return (-1);
slouken@2753
   624
    }
slouken@2753
   625
    if (index < 0 || index >= _this->num_displays) {
slouken@2753
   626
        SDL_SetError("index must be in the range 0 - %d",
slouken@2753
   627
                     _this->num_displays - 1);
slouken@2753
   628
        return -1;
slouken@2753
   629
    }
slouken@2753
   630
    _this->current_display = index;
slouken@2753
   631
    return 0;
slouken@1963
   632
}
slouken@1963
   633
slouken@1963
   634
int
slouken@1963
   635
SDL_GetCurrentVideoDisplay(void)
slouken@1963
   636
{
slouken@2753
   637
    if (!_this) {
slouken@2753
   638
        SDL_UninitializedVideo();
slouken@2753
   639
        return (-1);
slouken@2753
   640
    }
slouken@2753
   641
    return _this->current_display;
slouken@0
   642
}
slouken@0
   643
slouken@1895
   644
SDL_bool
slouken@3500
   645
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   646
{
slouken@2753
   647
    SDL_DisplayMode *modes;
slouken@2753
   648
    int i, nmodes;
slouken@0
   649
slouken@2753
   650
    /* Make sure we don't already have the mode in the list */
slouken@2753
   651
    modes = display->display_modes;
slouken@2753
   652
    nmodes = display->num_display_modes;
slouken@2753
   653
    for (i = nmodes; i--;) {
slouken@2753
   654
        if (SDL_memcmp(mode, &modes[i], sizeof(*mode)) == 0) {
slouken@2753
   655
            return SDL_FALSE;
slouken@2753
   656
        }
slouken@2753
   657
    }
slouken@1895
   658
slouken@2753
   659
    /* Go ahead and add the new mode */
slouken@2753
   660
    if (nmodes == display->max_display_modes) {
slouken@2753
   661
        modes =
slouken@2753
   662
            SDL_realloc(modes,
slouken@2753
   663
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   664
        if (!modes) {
slouken@2753
   665
            return SDL_FALSE;
slouken@2753
   666
        }
slouken@2753
   667
        display->display_modes = modes;
slouken@2753
   668
        display->max_display_modes += 32;
slouken@2753
   669
    }
slouken@2753
   670
    modes[nmodes] = *mode;
slouken@2753
   671
    display->num_display_modes++;
slouken@1895
   672
lestat@3178
   673
    /* Re-sort video modes */
lestat@3178
   674
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   675
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   676
slouken@2753
   677
    return SDL_TRUE;
slouken@0
   678
}
slouken@0
   679
slouken@1895
   680
int
slouken@3500
   681
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   682
{
slouken@3500
   683
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   684
        _this->GetDisplayModes(_this, display);
slouken@3500
   685
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   686
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   687
    }
slouken@3500
   688
    return display->num_display_modes;
slouken@3500
   689
}
slouken@3500
   690
slouken@3500
   691
int
slouken@1895
   692
SDL_GetNumDisplayModes()
slouken@0
   693
{
slouken@2753
   694
    if (_this) {
slouken@3685
   695
        return SDL_GetNumDisplayModesForDisplay(SDL_CurrentDisplay);
slouken@3500
   696
    }
slouken@3500
   697
    return 0;
slouken@3500
   698
}
slouken@3500
   699
slouken@3500
   700
int
slouken@3500
   701
SDL_GetDisplayModeForDisplay(SDL_VideoDisplay * display, int index, SDL_DisplayMode * mode)
slouken@3500
   702
{
slouken@3500
   703
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@3500
   704
        SDL_SetError("index must be in the range of 0 - %d",
slouken@3500
   705
                     SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   706
        return -1;
slouken@3500
   707
    }
slouken@3500
   708
    if (mode) {
slouken@3500
   709
        *mode = display->display_modes[index];
slouken@2753
   710
    }
slouken@2753
   711
    return 0;
slouken@0
   712
}
slouken@0
   713
slouken@1967
   714
int
slouken@1967
   715
SDL_GetDisplayMode(int index, SDL_DisplayMode * mode)
slouken@0
   716
{
slouken@3685
   717
    return SDL_GetDisplayModeForDisplay(SDL_CurrentDisplay, index, mode);
slouken@3500
   718
}
slouken@3500
   719
slouken@3500
   720
int
slouken@3500
   721
SDL_GetDesktopDisplayModeForDisplay(SDL_VideoDisplay * display, SDL_DisplayMode * mode)
slouken@3500
   722
{
slouken@2753
   723
    if (mode) {
slouken@3500
   724
        *mode = display->desktop_mode;
slouken@2753
   725
    }
slouken@2753
   726
    return 0;
slouken@0
   727
}
slouken@0
   728
slouken@1967
   729
int
slouken@1967
   730
SDL_GetDesktopDisplayMode(SDL_DisplayMode * mode)
slouken@0
   731
{
slouken@2753
   732
    if (!_this) {
slouken@2753
   733
        SDL_UninitializedVideo();
slouken@2753
   734
        return -1;
slouken@2753
   735
    }
slouken@3685
   736
    return SDL_GetDesktopDisplayModeForDisplay(SDL_CurrentDisplay, mode);
slouken@3500
   737
}
slouken@3500
   738
slouken@3500
   739
int
slouken@3500
   740
SDL_GetCurrentDisplayModeForDisplay(SDL_VideoDisplay * display, SDL_DisplayMode * mode)
slouken@3500
   741
{
slouken@2753
   742
    if (mode) {
slouken@3500
   743
        *mode = display->current_mode;
slouken@2753
   744
    }
slouken@2753
   745
    return 0;
slouken@0
   746
}
slouken@0
   747
slouken@1967
   748
int
slouken@1967
   749
SDL_GetCurrentDisplayMode(SDL_DisplayMode * mode)
slouken@0
   750
{
slouken@2753
   751
    if (!_this) {
slouken@2753
   752
        SDL_UninitializedVideo();
slouken@2753
   753
        return -1;
slouken@2753
   754
    }
slouken@3685
   755
    return SDL_GetCurrentDisplayModeForDisplay(SDL_CurrentDisplay, mode);
slouken@0
   756
}
slouken@0
   757
slouken@1895
   758
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@3500
   866
SDL_GetClosestDisplayMode(const SDL_DisplayMode * mode,
slouken@3500
   867
                          SDL_DisplayMode * closest)
slouken@3500
   868
{
slouken@3500
   869
    if (!_this) {
slouken@3500
   870
        SDL_UninitializedVideo();
slouken@3500
   871
        return NULL;
slouken@3500
   872
    }
slouken@3685
   873
    return SDL_GetClosestDisplayModeForDisplay(SDL_CurrentDisplay, mode, closest);
slouken@3500
   874
}
slouken@3500
   875
slouken@1895
   876
int
slouken@3500
   877
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   878
{
slouken@2753
   879
    SDL_DisplayMode display_mode;
slouken@2753
   880
    SDL_DisplayMode current_mode;
slouken@0
   881
slouken@3502
   882
    if (mode) {
slouken@3502
   883
        display_mode = *mode;
slouken@3502
   884
slouken@3502
   885
        /* Default to the current mode */
slouken@3502
   886
        if (!display_mode.format) {
slouken@3502
   887
            display_mode.format = display->current_mode.format;
slouken@3502
   888
        }
slouken@3502
   889
        if (!display_mode.w) {
slouken@3502
   890
            display_mode.w = display->current_mode.w;
slouken@3502
   891
        }
slouken@3502
   892
        if (!display_mode.h) {
slouken@3502
   893
            display_mode.h = display->current_mode.h;
slouken@3502
   894
        }
slouken@3502
   895
        if (!display_mode.refresh_rate) {
slouken@3502
   896
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   897
        }
slouken@3502
   898
slouken@3502
   899
        /* Get a good video mode, the closest one possible */
slouken@3502
   900
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@3502
   901
            SDL_SetError("No video mode large enough for %dx%d",
slouken@3502
   902
                         display_mode.w, display_mode.h);
slouken@3502
   903
            return -1;
slouken@3502
   904
        }
slouken@3502
   905
    } else {
slouken@3502
   906
        display_mode = display->desktop_mode;
slouken@2753
   907
    }
slouken@3500
   908
slouken@2753
   909
    /* See if there's anything left to do */
slouken@3500
   910
    SDL_GetCurrentDisplayModeForDisplay(display, &current_mode);
slouken@2753
   911
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   912
        return 0;
slouken@2753
   913
    }
slouken@3500
   914
slouken@2753
   915
    /* Actually change the display mode */
slouken@4978
   916
    if (!_this->SetDisplayMode) {
slouken@4978
   917
        SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   918
        return -1;
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@3685
   928
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
   929
{
slouken@3695
   930
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   931
slouken@2753
   932
    if (mode) {
slouken@3500
   933
        window->fullscreen_mode = *mode;
slouken@3500
   934
    } else {
slouken@3500
   935
        SDL_zero(window->fullscreen_mode);
slouken@3500
   936
    }
slouken@3526
   937
    return 0;
slouken@3500
   938
}
slouken@3500
   939
slouken@3500
   940
int
slouken@3685
   941
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
   942
{
slouken@3500
   943
    SDL_DisplayMode fullscreen_mode;
slouken@3500
   944
slouken@3695
   945
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
   946
slouken@3500
   947
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
   948
    if (!fullscreen_mode.w) {
slouken@3500
   949
        fullscreen_mode.w = window->w;
slouken@3500
   950
    }
slouken@3500
   951
    if (!fullscreen_mode.h) {
slouken@3500
   952
        fullscreen_mode.h = window->h;
slouken@3500
   953
    }
slouken@3500
   954
slouken@3685
   955
    if (!SDL_GetClosestDisplayModeForDisplay(window->display,
slouken@3500
   956
                                             &fullscreen_mode,
slouken@3500
   957
                                             &fullscreen_mode)) {
slouken@3500
   958
        SDL_SetError("Couldn't find display mode match");
slouken@3500
   959
        return -1;
slouken@3500
   960
    }
slouken@3500
   961
slouken@3500
   962
    if (mode) {
slouken@3500
   963
        *mode = fullscreen_mode;
slouken@2753
   964
    }
slouken@2753
   965
    return 0;
slouken@0
   966
}
slouken@0
   967
slouken@5154
   968
Uint32
slouken@5154
   969
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
   970
{
slouken@5154
   971
    SDL_VideoDisplay *display = window->display;
slouken@5154
   972
    SDL_DisplayMode *displayMode = &display->current_mode;
slouken@5154
   973
    return displayMode->format;
slouken@5154
   974
}
slouken@5154
   975
slouken@3502
   976
static void
slouken@3502
   977
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool attempt)
slouken@3502
   978
{
slouken@3685
   979
    SDL_VideoDisplay *display = window->display;
slouken@3502
   980
slouken@3502
   981
    /* See if we're already processing a window */
slouken@3502
   982
    if (display->updating_fullscreen) {
slouken@3502
   983
        return;
slouken@3502
   984
    }
slouken@3502
   985
slouken@3502
   986
    display->updating_fullscreen = SDL_TRUE;
slouken@3502
   987
slouken@3502
   988
    /* See if we even want to do anything here */
slouken@3502
   989
    if ((window->flags & SDL_WINDOW_FULLSCREEN) &&
slouken@3502
   990
        (window->flags & SDL_WINDOW_SHOWN)) {
slouken@3502
   991
        if (attempt) {
slouken@3502
   992
            /* We just gained some state, try to gain all states */
slouken@3502
   993
            if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@3685
   994
                SDL_RestoreWindow(window);
slouken@3502
   995
            } else {
slouken@3685
   996
                SDL_RaiseWindow(window);
slouken@3502
   997
            }
slouken@3502
   998
        } else {
slouken@3502
   999
            /* We just lost some state, try to release all states */
slouken@3685
  1000
            SDL_MinimizeWindow(window);
slouken@3502
  1001
        }
slouken@3502
  1002
    }
slouken@3502
  1003
slouken@3502
  1004
    if (FULLSCREEN_VISIBLE(window)) {
slouken@3502
  1005
        /* Hide any other fullscreen windows */
slouken@3701
  1006
        SDL_Window *other;
slouken@3701
  1007
        for (other = display->windows; other; other = other->next) {
slouken@3502
  1008
            if (other != window && FULLSCREEN_VISIBLE(other)) {
slouken@3685
  1009
                SDL_MinimizeWindow(other);
slouken@3502
  1010
            }
slouken@3502
  1011
        }
slouken@3502
  1012
    }
slouken@3502
  1013
slouken@3502
  1014
    display->updating_fullscreen = SDL_FALSE;
slouken@3502
  1015
slouken@3502
  1016
    /* See if there are any fullscreen windows */
slouken@3701
  1017
    for (window = display->windows; window; window = window->next) {
slouken@3502
  1018
        if (FULLSCREEN_VISIBLE(window)) {
slouken@3502
  1019
            SDL_DisplayMode fullscreen_mode;
slouken@3685
  1020
            if (SDL_GetWindowDisplayMode(window, &fullscreen_mode) == 0) {
slouken@3502
  1021
                SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@3517
  1022
                display->fullscreen_window = window;
slouken@3502
  1023
                return;
slouken@3502
  1024
            }
slouken@3502
  1025
        }
slouken@3502
  1026
    }
slouken@3502
  1027
slouken@3502
  1028
    /* Nope, restore the desktop mode */
slouken@3502
  1029
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@3517
  1030
    display->fullscreen_window = NULL;
slouken@3502
  1031
}
slouken@3502
  1032
slouken@3685
  1033
SDL_Window *
slouken@1895
  1034
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1035
{
slouken@2753
  1036
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@2753
  1037
                                  SDL_WINDOW_OPENGL |
slouken@2753
  1038
                                  SDL_WINDOW_BORDERLESS |
slouken@2875
  1039
                                  SDL_WINDOW_RESIZABLE |
slouken@2875
  1040
                                  SDL_WINDOW_INPUT_GRABBED);
slouken@2753
  1041
    SDL_VideoDisplay *display;
slouken@3685
  1042
    SDL_Window *window;
slouken@0
  1043
slouken@2753
  1044
    if (!_this) {
slouken@3417
  1045
        /* Initialize the video system if needed */
slouken@5123
  1046
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1047
            return NULL;
slouken@3417
  1048
        }
slouken@2753
  1049
    }
slouken@3057
  1050
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1051
        if (!_this->GL_CreateContext) {
slouken@3057
  1052
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1053
            return NULL;
slouken@3057
  1054
        }
slouken@3057
  1055
        SDL_GL_LoadLibrary(NULL);
slouken@2753
  1056
    }
slouken@3685
  1057
    display = SDL_CurrentDisplay;
slouken@3685
  1058
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1059
    window->magic = &_this->window_magic;
slouken@3685
  1060
    window->id = _this->next_object_id++;
slouken@3685
  1061
    window->x = x;
slouken@3685
  1062
    window->y = y;
slouken@3685
  1063
    window->w = w;
slouken@3685
  1064
    window->h = h;
slouken@3685
  1065
    window->flags = (flags & allowed_flags);
slouken@3685
  1066
    window->display = display;
slouken@3685
  1067
    window->next = display->windows;
slouken@3693
  1068
    if (display->windows) {
slouken@3693
  1069
        display->windows->prev = window;
slouken@3693
  1070
    }
slouken@3685
  1071
    display->windows = window;
slouken@3685
  1072
slouken@3685
  1073
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1074
        SDL_DestroyWindow(window);
slouken@3685
  1075
        return NULL;
slouken@3685
  1076
    }
slouken@0
  1077
slouken@2753
  1078
    if (title) {
slouken@3685
  1079
        SDL_SetWindowTitle(window, title);
slouken@2753
  1080
    }
slouken@2753
  1081
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@3685
  1082
        SDL_MaximizeWindow(window);
slouken@2753
  1083
    }
slouken@2753
  1084
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@3685
  1085
        SDL_MinimizeWindow(window);
slouken@2753
  1086
    }
slouken@2753
  1087
    if (flags & SDL_WINDOW_SHOWN) {
slouken@3685
  1088
        SDL_ShowWindow(window);
slouken@3685
  1089
    }
slouken@3685
  1090
    SDL_UpdateWindowGrab(window);
slouken@3685
  1091
slouken@3685
  1092
    return window;
slouken@1895
  1093
}
slouken@0
  1094
slouken@3685
  1095
SDL_Window *
slouken@1895
  1096
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1097
{
slouken@2753
  1098
    SDL_VideoDisplay *display;
slouken@3685
  1099
    SDL_Window *window;
slouken@0
  1100
slouken@2753
  1101
    if (!_this) {
slouken@2753
  1102
        SDL_UninitializedVideo();
slouken@3685
  1103
        return NULL;
slouken@3685
  1104
    }
slouken@3685
  1105
    display = SDL_CurrentDisplay;
slouken@3685
  1106
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@3695
  1107
    window->magic = &_this->window_magic;
slouken@3685
  1108
    window->id = _this->next_object_id++;
slouken@3685
  1109
    window->flags = SDL_WINDOW_FOREIGN;
slouken@3685
  1110
    window->display = display;
slouken@3685
  1111
    window->next = display->windows;
slouken@3693
  1112
    if (display->windows) {
slouken@3693
  1113
        display->windows->prev = window;
slouken@3693
  1114
    }
slouken@3685
  1115
    display->windows = window;
slouken@1895
  1116
slouken@2753
  1117
    if (!_this->CreateWindowFrom ||
slouken@3685
  1118
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1119
        SDL_DestroyWindow(window);
slouken@3685
  1120
        return NULL;
slouken@3685
  1121
    }
slouken@3685
  1122
    return window;
slouken@1895
  1123
}
slouken@1895
  1124
slouken@1924
  1125
int
slouken@1928
  1126
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1127
{
slouken@3057
  1128
    const Uint32 allowed_flags = (SDL_WINDOW_FULLSCREEN |
slouken@3057
  1129
                                  SDL_WINDOW_OPENGL |
slouken@3057
  1130
                                  SDL_WINDOW_BORDERLESS |
slouken@3057
  1131
                                  SDL_WINDOW_RESIZABLE |
slouken@3486
  1132
                                  SDL_WINDOW_INPUT_GRABBED |
slouken@3486
  1133
                                  SDL_WINDOW_FOREIGN);
slouken@2753
  1134
    char *title = window->title;
slouken@1956
  1135
slouken@2753
  1136
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@2753
  1137
        SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1138
        return -1;
slouken@2753
  1139
    }
slouken@3057
  1140
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@3057
  1141
        if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1142
            SDL_GL_LoadLibrary(NULL);
slouken@3057
  1143
        } else {
slouken@3057
  1144
            SDL_GL_UnloadLibrary();
slouken@3057
  1145
        }
slouken@3057
  1146
    }
slouken@3057
  1147
slouken@3057
  1148
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1149
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1150
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1151
    } else {
slouken@3057
  1152
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1153
    }
slouken@3057
  1154
slouken@3057
  1155
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1156
        _this->DestroyWindow(_this, window);
slouken@2753
  1157
    }
slouken@3057
  1158
slouken@2753
  1159
    window->title = NULL;
slouken@3057
  1160
    window->flags = (flags & allowed_flags);
slouken@1956
  1161
slouken@3057
  1162
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1163
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1164
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1165
                SDL_GL_UnloadLibrary();
slouken@3057
  1166
            }
slouken@3057
  1167
            return -1;
slouken@3057
  1168
        }
slouken@2753
  1169
    }
slouken@3057
  1170
slouken@2753
  1171
    if (title) {
slouken@3685
  1172
        SDL_SetWindowTitle(window, title);
slouken@2753
  1173
        SDL_free(title);
slouken@2753
  1174
    }
slouken@2753
  1175
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@3685
  1176
        SDL_MaximizeWindow(window);
slouken@2753
  1177
    }
slouken@2753
  1178
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@3685
  1179
        SDL_MinimizeWindow(window);
slouken@2753
  1180
    }
slouken@2753
  1181
    if (flags & SDL_WINDOW_SHOWN) {
slouken@3685
  1182
        SDL_ShowWindow(window);
slouken@2753
  1183
    }
slouken@2875
  1184
    SDL_UpdateWindowGrab(window);
slouken@2875
  1185
slouken@2753
  1186
    return 0;
slouken@1924
  1187
}
slouken@1924
  1188
slouken@1895
  1189
Uint32
slouken@3685
  1190
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1191
{
slouken@3695
  1192
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1193
slouken@3685
  1194
    return window->id;
slouken@3685
  1195
}
slouken@3685
  1196
slouken@3685
  1197
SDL_Window *
slouken@3685
  1198
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1199
{
slouken@3685
  1200
    SDL_Window *window;
slouken@3685
  1201
    int i;
slouken@3685
  1202
slouken@3685
  1203
    if (!_this) {
slouken@3685
  1204
        return NULL;
slouken@3685
  1205
    }
slouken@3685
  1206
    /* FIXME: Should we keep a separate hash table for these? */
slouken@3685
  1207
    for (i = _this->num_displays; i--;) {
slouken@3685
  1208
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@3685
  1209
        for (window = display->windows; window; window = window->next) {
slouken@3685
  1210
            if (window->id == id) {
slouken@3685
  1211
                return window;
slouken@3685
  1212
            }
slouken@3685
  1213
        }
slouken@3685
  1214
    }
slouken@3685
  1215
    return NULL;
slouken@3685
  1216
}
slouken@3685
  1217
slouken@3685
  1218
Uint32
slouken@3685
  1219
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1220
{
slouken@3695
  1221
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1222
slouken@2753
  1223
    return window->flags;
slouken@1895
  1224
}
slouken@1895
  1225
slouken@1895
  1226
void
slouken@3685
  1227
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1228
{
slouken@3695
  1229
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1230
slouken@3695
  1231
    if (title == window->title) {
slouken@2753
  1232
        return;
slouken@2753
  1233
    }
slouken@2753
  1234
    if (window->title) {
slouken@2753
  1235
        SDL_free(window->title);
slouken@2753
  1236
    }
slouken@4871
  1237
    if (title && *title) {
slouken@2753
  1238
        window->title = SDL_strdup(title);
slouken@2753
  1239
    } else {
slouken@2753
  1240
        window->title = NULL;
slouken@2753
  1241
    }
slouken@1956
  1242
slouken@2753
  1243
    if (_this->SetWindowTitle) {
slouken@2753
  1244
        _this->SetWindowTitle(_this, window);
slouken@2753
  1245
    }
slouken@1895
  1246
}
slouken@1895
  1247
slouken@2753
  1248
const char *
slouken@3685
  1249
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1250
{
slouken@4872
  1251
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1252
slouken@4871
  1253
    return window->title ? window->title : "";
slouken@1895
  1254
}
slouken@1895
  1255
slouken@1895
  1256
void
slouken@3685
  1257
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1258
{
slouken@3695
  1259
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1260
slouken@2967
  1261
    if (_this->SetWindowIcon) {
slouken@2967
  1262
        _this->SetWindowIcon(_this, window, icon);
slouken@2967
  1263
    }
slouken@2967
  1264
}
slouken@2967
  1265
slouken@5165
  1266
void*
slouken@5165
  1267
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1268
{
slouken@5165
  1269
    SDL_WindowUserData *prev, *data;
slouken@3695
  1270
slouken@5165
  1271
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5165
  1272
slouken@5165
  1273
    /* See if the named data already exists */
slouken@5165
  1274
    prev = NULL;
slouken@5165
  1275
    for (data = window->data; data; prev = data, data = data->next) {
slouken@5165
  1276
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1277
            void *last_value = data->data;
slouken@5165
  1278
slouken@5165
  1279
            if (userdata) {
slouken@5165
  1280
                /* Set the new value */
slouken@5165
  1281
                data->data = userdata;
slouken@5165
  1282
            } else {
slouken@5165
  1283
                /* Delete this value */
slouken@5165
  1284
                if (prev) {
slouken@5165
  1285
                    prev->next = data->next;
slouken@5165
  1286
                } else {
slouken@5165
  1287
                    window->data = data->next;
slouken@5165
  1288
                }
slouken@5165
  1289
                SDL_free(data->name);
slouken@5165
  1290
                SDL_free(data);
slouken@5165
  1291
            }
slouken@5165
  1292
            return last_value;
slouken@5165
  1293
        }
slouken@5165
  1294
    }
slouken@5165
  1295
slouken@5165
  1296
    /* Add new data to the window */
slouken@5165
  1297
    if (userdata) {
slouken@5165
  1298
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1299
        data->name = SDL_strdup(name);
slouken@5165
  1300
        data->data = userdata;
slouken@5165
  1301
        data->next = window->data;
slouken@5165
  1302
        window->data = data;
slouken@5165
  1303
    }
slouken@5165
  1304
    return NULL;
slouken@1895
  1305
}
slouken@1895
  1306
slouken@2753
  1307
void *
slouken@5165
  1308
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1309
{
slouken@5165
  1310
    SDL_WindowUserData *data;
slouken@5165
  1311
slouken@3695
  1312
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1313
slouken@5165
  1314
    for (data = window->data; data; data = data->next) {
slouken@5165
  1315
        if (SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1316
            return data->data;
slouken@5165
  1317
        }
slouken@5165
  1318
    }
slouken@5165
  1319
    return NULL;
slouken@1895
  1320
}
slouken@1895
  1321
slouken@1895
  1322
void
slouken@3685
  1323
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1324
{
slouken@3695
  1325
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1326
slouken@2875
  1327
    if (x != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1328
        window->x = x;
slouken@2753
  1329
    }
slouken@2875
  1330
    if (y != SDL_WINDOWPOS_UNDEFINED) {
slouken@2753
  1331
        window->y = y;
slouken@2753
  1332
    }
slouken@2753
  1333
    if (_this->SetWindowPosition) {
slouken@2753
  1334
        _this->SetWindowPosition(_this, window);
slouken@2753
  1335
    }
slouken@3685
  1336
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@1895
  1337
}
slouken@1895
  1338
slouken@1895
  1339
void
slouken@3685
  1340
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1341
{
slouken@3695
  1342
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1343
slouken@2753
  1344
    if (x) {
slouken@2753
  1345
        *x = window->x;
slouken@2753
  1346
    }
slouken@2753
  1347
    if (y) {
slouken@2753
  1348
        *y = window->y;
slouken@2753
  1349
    }
slouken@1895
  1350
}
slouken@1895
  1351
slouken@1895
  1352
void
slouken@3685
  1353
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1354
{
slouken@3695
  1355
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1356
slouken@2753
  1357
    window->w = w;
slouken@2753
  1358
    window->h = h;
slouken@1895
  1359
slouken@2753
  1360
    if (_this->SetWindowSize) {
slouken@2753
  1361
        _this->SetWindowSize(_this, window);
slouken@2753
  1362
    }
slouken@5147
  1363
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, w, h);
slouken@1895
  1364
}
slouken@1895
  1365
slouken@1895
  1366
void
slouken@3685
  1367
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1368
{
slouken@2860
  1369
    if (window) {
slouken@2849
  1370
        if (w) {
slouken@2849
  1371
            *w = window->w;
slouken@2849
  1372
        }
slouken@2849
  1373
        if (h) {
slouken@2849
  1374
            *h = window->h;
slouken@2849
  1375
        }
slouken@2849
  1376
    } else {
slouken@2849
  1377
        if (w) {
slouken@2849
  1378
            *w = 0;
slouken@2849
  1379
        }
slouken@2849
  1380
        if (h) {
slouken@2849
  1381
            *h = 0;
slouken@2849
  1382
        }
slouken@2753
  1383
    }
slouken@1895
  1384
}
slouken@1895
  1385
slouken@1895
  1386
void
slouken@3685
  1387
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1388
{
slouken@3695
  1389
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1390
slouken@3695
  1391
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1392
        return;
slouken@2753
  1393
    }
slouken@1895
  1394
slouken@2753
  1395
    if (_this->ShowWindow) {
slouken@2753
  1396
        _this->ShowWindow(_this, window);
slouken@2753
  1397
    }
slouken@3685
  1398
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1399
}
slouken@1895
  1400
slouken@1895
  1401
void
slouken@3685
  1402
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1403
{
slouken@3695
  1404
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1405
slouken@3695
  1406
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1407
        return;
slouken@2753
  1408
    }
slouken@1895
  1409
slouken@2753
  1410
    if (_this->HideWindow) {
slouken@2753
  1411
        _this->HideWindow(_this, window);
slouken@2753
  1412
    }
slouken@3685
  1413
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1414
}
slouken@1895
  1415
slouken@1895
  1416
void
slouken@3685
  1417
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1418
{
slouken@3695
  1419
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1420
slouken@3695
  1421
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1422
        return;
slouken@2753
  1423
    }
slouken@2753
  1424
    if (_this->RaiseWindow) {
slouken@2753
  1425
        _this->RaiseWindow(_this, window);
slouken@3502
  1426
    } else {
slouken@3502
  1427
        /* FIXME: What we really want is a way to request focus */
slouken@3685
  1428
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
slouken@2753
  1429
    }
slouken@1895
  1430
}
slouken@1895
  1431
slouken@1895
  1432
void
slouken@3685
  1433
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1434
{
slouken@3695
  1435
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1436
slouken@3695
  1437
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1438
        return;
slouken@2753
  1439
    }
slouken@1895
  1440
slouken@2753
  1441
    if (_this->MaximizeWindow) {
slouken@2753
  1442
        _this->MaximizeWindow(_this, window);
slouken@2753
  1443
    }
slouken@3685
  1444
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
slouken@1895
  1445
}
slouken@1895
  1446
slouken@1895
  1447
void
slouken@3685
  1448
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1449
{
slouken@3695
  1450
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1451
slouken@3695
  1452
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1453
        return;
slouken@2753
  1454
    }
slouken@1895
  1455
slouken@2753
  1456
    if (_this->MinimizeWindow) {
slouken@2753
  1457
        _this->MinimizeWindow(_this, window);
slouken@2753
  1458
    }
slouken@3685
  1459
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
slouken@1895
  1460
}
slouken@1895
  1461
slouken@1895
  1462
void
slouken@3685
  1463
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1464
{
slouken@3695
  1465
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1466
slouken@3695
  1467
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1468
        return;
slouken@2753
  1469
    }
slouken@1895
  1470
slouken@2753
  1471
    if (_this->RestoreWindow) {
slouken@2753
  1472
        _this->RestoreWindow(_this, window);
slouken@2753
  1473
    }
slouken@3685
  1474
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESTORED, 0, 0);
slouken@1895
  1475
}
slouken@1895
  1476
slouken@1895
  1477
int
slouken@3685
  1478
SDL_SetWindowFullscreen(SDL_Window * window, int fullscreen)
slouken@1895
  1479
{
slouken@3695
  1480
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1481
slouken@2753
  1482
    if (fullscreen) {
slouken@2753
  1483
        fullscreen = SDL_WINDOW_FULLSCREEN;
slouken@2753
  1484
    }
slouken@2753
  1485
    if ((window->flags & SDL_WINDOW_FULLSCREEN) == fullscreen) {
slouken@2753
  1486
        return 0;
slouken@2753
  1487
    }
slouken@2753
  1488
    if (fullscreen) {
slouken@2753
  1489
        window->flags |= SDL_WINDOW_FULLSCREEN;
slouken@1895
  1490
slouken@3502
  1491
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@2753
  1492
    } else {
slouken@2753
  1493
        window->flags &= ~SDL_WINDOW_FULLSCREEN;
slouken@1895
  1494
slouken@3502
  1495
        SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@2753
  1496
    }
slouken@2753
  1497
    return 0;
slouken@1895
  1498
}
slouken@1895
  1499
slouken@5166
  1500
static SDL_Surface *
slouken@5166
  1501
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1502
{
slouken@5166
  1503
    Uint32 format;
slouken@5166
  1504
    void *pixels;
slouken@5166
  1505
    int pitch;
slouken@5166
  1506
    int bpp;
slouken@5166
  1507
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1508
slouken@5166
  1509
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1510
        return NULL;
slouken@5166
  1511
    }
slouken@5166
  1512
slouken@5166
  1513
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1514
        return NULL;
slouken@5166
  1515
    }
slouken@5166
  1516
slouken@5166
  1517
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1518
        return NULL;
slouken@5166
  1519
    }
slouken@5166
  1520
slouken@5166
  1521
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1522
}
slouken@5166
  1523
slouken@5166
  1524
SDL_Surface *
slouken@5166
  1525
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1526
{
slouken@5166
  1527
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1528
slouken@5172
  1529
    if (!window->surface_valid) {
slouken@5172
  1530
        if (window->surface) {
slouken@5172
  1531
            window->surface->refcount = 0;
slouken@5172
  1532
            SDL_FreeSurface(window->surface);
slouken@5172
  1533
        }
slouken@5166
  1534
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1535
        if (window->surface) {
slouken@5172
  1536
            window->surface_valid = SDL_TRUE;
slouken@5169
  1537
            window->surface->refcount = 0x7FFFFFF;
slouken@5169
  1538
        }
slouken@5166
  1539
    }
slouken@5166
  1540
    return window->surface;
slouken@5166
  1541
}
slouken@5166
  1542
slouken@5166
  1543
int
slouken@5166
  1544
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1545
{
slouken@5166
  1546
    SDL_Rect full_rect;
slouken@5166
  1547
slouken@5166
  1548
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1549
slouken@5166
  1550
    full_rect.x = 0;
slouken@5166
  1551
    full_rect.y = 0;
slouken@5166
  1552
    full_rect.w = window->w;
slouken@5166
  1553
    full_rect.h = window->h;
slouken@5166
  1554
    return SDL_UpdateWindowSurfaceRects(window, 1, &full_rect);
slouken@5166
  1555
}
slouken@5166
  1556
slouken@5166
  1557
int
slouken@5166
  1558
SDL_UpdateWindowSurfaceRects(SDL_Window * window,
slouken@5166
  1559
                             int numrects, SDL_Rect * rects)
slouken@5166
  1560
{
slouken@5166
  1561
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1562
slouken@5172
  1563
    if (!window->surface_valid) {
slouken@5166
  1564
        SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1565
        return -1;
slouken@5166
  1566
    }
slouken@5166
  1567
slouken@5166
  1568
    return _this->UpdateWindowFramebuffer(_this, window, numrects, rects);
slouken@5166
  1569
}
slouken@5166
  1570
slouken@1895
  1571
void
slouken@3685
  1572
SDL_SetWindowGrab(SDL_Window * window, int mode)
slouken@1895
  1573
{
slouken@3695
  1574
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1575
slouken@3695
  1576
    if ((!!mode == !!(window->flags & SDL_WINDOW_INPUT_GRABBED))) {
slouken@2753
  1577
        return;
slouken@2753
  1578
    }
slouken@2753
  1579
    if (mode) {
slouken@2753
  1580
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1581
    } else {
slouken@2753
  1582
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@2753
  1583
    }
slouken@2875
  1584
    SDL_UpdateWindowGrab(window);
slouken@2875
  1585
}
slouken@1895
  1586
slouken@2875
  1587
static void
slouken@2876
  1588
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  1589
{
slouken@2753
  1590
    if ((window->flags & SDL_WINDOW_INPUT_FOCUS) && _this->SetWindowGrab) {
slouken@2753
  1591
        _this->SetWindowGrab(_this, window);
slouken@2753
  1592
    }
slouken@1895
  1593
}
slouken@1895
  1594
slouken@1895
  1595
int
slouken@3685
  1596
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  1597
{
slouken@3695
  1598
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1599
slouken@2753
  1600
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  1601
}
slouken@1895
  1602
slouken@1895
  1603
void
slouken@1895
  1604
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  1605
{
slouken@3685
  1606
    SDL_RaiseWindow(window);
slouken@3502
  1607
    SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@1895
  1608
}
slouken@1895
  1609
slouken@1895
  1610
void
slouken@1895
  1611
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  1612
{
slouken@3502
  1613
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  1614
}
slouken@1895
  1615
slouken@1895
  1616
void
slouken@5166
  1617
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  1618
{
slouken@5172
  1619
    window->surface_valid = SDL_FALSE;
slouken@5166
  1620
}
slouken@5166
  1621
slouken@5166
  1622
void
slouken@3502
  1623
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  1624
{
slouken@3502
  1625
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  1626
}
slouken@3502
  1627
slouken@3502
  1628
void
slouken@3502
  1629
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  1630
{
slouken@3685
  1631
    SDL_RaiseWindow(window);
slouken@3502
  1632
    SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@3502
  1633
}
slouken@3502
  1634
slouken@3502
  1635
void
slouken@1895
  1636
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  1637
{
slouken@3685
  1638
    SDL_VideoDisplay *display = window->display;
slouken@1895
  1639
slouken@2753
  1640
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@3500
  1641
        _this->SetDisplayGammaRamp(_this, display, display->gamma);
slouken@2753
  1642
    }
slouken@2876
  1643
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1644
        && _this->SetWindowGrab) {
slouken@2753
  1645
        _this->SetWindowGrab(_this, window);
slouken@2753
  1646
    }
slouken@1895
  1647
}
slouken@1895
  1648
slouken@1895
  1649
void
slouken@1895
  1650
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  1651
{
slouken@3685
  1652
    SDL_VideoDisplay *display = window->display;
slouken@1895
  1653
slouken@3512
  1654
    /* If we're fullscreen on a single-head system and lose focus, minimize */
slouken@3512
  1655
    if ((window->flags & SDL_WINDOW_FULLSCREEN) &&
slouken@3512
  1656
        _this->num_displays == 1) {
slouken@3685
  1657
        SDL_MinimizeWindow(window);
slouken@3512
  1658
    }
slouken@3512
  1659
slouken@2753
  1660
    if (display->gamma && _this->SetDisplayGammaRamp) {
slouken@3500
  1661
        _this->SetDisplayGammaRamp(_this, display, display->saved_gamma);
slouken@2753
  1662
    }
slouken@2876
  1663
    if ((window->flags & (SDL_WINDOW_INPUT_GRABBED | SDL_WINDOW_FULLSCREEN))
slouken@2876
  1664
        && _this->SetWindowGrab) {
slouken@2753
  1665
        _this->SetWindowGrab(_this, window);
slouken@2753
  1666
    }
slouken@1895
  1667
}
slouken@1895
  1668
slouken@3685
  1669
SDL_Window *
slouken@1895
  1670
SDL_GetFocusWindow(void)
slouken@1895
  1671
{
slouken@2753
  1672
    SDL_VideoDisplay *display;
slouken@3685
  1673
    SDL_Window *window;
slouken@1895
  1674
slouken@2753
  1675
    if (!_this) {
slouken@3685
  1676
        return NULL;
slouken@3685
  1677
    }
slouken@3685
  1678
    display = SDL_CurrentDisplay;
slouken@3685
  1679
    for (window = display->windows; window; window = window->next) {
slouken@2753
  1680
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  1681
            return window;
slouken@2753
  1682
        }
slouken@2753
  1683
    }
slouken@3685
  1684
    return NULL;
slouken@1895
  1685
}
slouken@1895
  1686
slouken@1895
  1687
void
slouken@3685
  1688
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  1689
{
slouken@3685
  1690
    SDL_VideoDisplay *display;
slouken@3685
  1691
slouken@3695
  1692
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  1693
slouken@3685
  1694
    /* Restore video mode, etc. */
slouken@3685
  1695
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3685
  1696
slouken@5169
  1697
    if (window->surface) {
slouken@5169
  1698
        window->surface->refcount = 0;
slouken@5169
  1699
        SDL_FreeSurface(window->surface);
slouken@5169
  1700
    }
slouken@5166
  1701
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  1702
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  1703
    }
slouken@3685
  1704
    if (_this->DestroyWindow) {
slouken@3685
  1705
        _this->DestroyWindow(_this, window);
slouken@3685
  1706
    }
slouken@3685
  1707
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  1708
        SDL_GL_UnloadLibrary();
slouken@3685
  1709
    }
slouken@3685
  1710
slouken@4901
  1711
    /* Now invalidate magic */
slouken@4897
  1712
    window->magic = NULL;
slouken@4897
  1713
slouken@5165
  1714
    /* Free memory associated with the window */
slouken@5165
  1715
    if (window->title) {
slouken@5165
  1716
        SDL_free(window->title);
slouken@5165
  1717
    }
slouken@5165
  1718
    while (window->data) {
slouken@5165
  1719
        SDL_WindowUserData *data = window->data;
slouken@5165
  1720
slouken@5165
  1721
        window->data = data->next;
slouken@5165
  1722
        SDL_free(data->name);
slouken@5165
  1723
        SDL_free(data);
slouken@5165
  1724
    }
slouken@5165
  1725
slouken@3685
  1726
    /* Unlink the window from the list */
slouken@3685
  1727
    display = window->display;
slouken@3693
  1728
    if (window->next) {
slouken@3693
  1729
        window->next->prev = window->prev;
slouken@3693
  1730
    }
slouken@3685
  1731
    if (window->prev) {
slouken@3685
  1732
        window->prev->next = window->next;
slouken@3685
  1733
    } else {
slouken@3685
  1734
        display->windows = window->next;
slouken@3685
  1735
    }
slouken@3685
  1736
slouken@3685
  1737
    SDL_free(window);
slouken@1895
  1738
}
slouken@1895
  1739
slouken@3025
  1740
SDL_bool
slouken@3025
  1741
SDL_IsScreenSaverEnabled()
slouken@3025
  1742
{
slouken@3025
  1743
    if (!_this) {
slouken@3025
  1744
        return SDL_TRUE;
slouken@3025
  1745
    }
slouken@3025
  1746
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  1747
}
slouken@3025
  1748
slouken@3025
  1749
void
slouken@3025
  1750
SDL_EnableScreenSaver()
slouken@3025
  1751
{
slouken@3025
  1752
    if (!_this) {
slouken@3025
  1753
        return;
slouken@3025
  1754
    }
slouken@3025
  1755
    if (!_this->suspend_screensaver) {
slouken@3025
  1756
        return;
slouken@3025
  1757
    }
slouken@3025
  1758
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  1759
    if (_this->SuspendScreenSaver) {
slouken@3025
  1760
        _this->SuspendScreenSaver(_this);
slouken@3025
  1761
    }
slouken@3025
  1762
}
slouken@3025
  1763
slouken@3025
  1764
void
slouken@3025
  1765
SDL_DisableScreenSaver()
slouken@3025
  1766
{
slouken@3025
  1767
    if (!_this) {
slouken@3025
  1768
        return;
slouken@3025
  1769
    }
slouken@3025
  1770
    if (_this->suspend_screensaver) {
slouken@3025
  1771
        return;
slouken@3025
  1772
    }
slouken@3025
  1773
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  1774
    if (_this->SuspendScreenSaver) {
slouken@3025
  1775
        _this->SuspendScreenSaver(_this);
slouken@3025
  1776
    }
slouken@3025
  1777
}
slouken@3025
  1778
slouken@1895
  1779
void
slouken@1895
  1780
SDL_VideoQuit(void)
slouken@1895
  1781
{
slouken@2753
  1782
    int i, j;
slouken@1895
  1783
slouken@2753
  1784
    if (!_this) {
slouken@2753
  1785
        return;
slouken@2753
  1786
    }
slouken@5123
  1787
slouken@2753
  1788
    /* Halt event processing before doing anything else */
slouken@5123
  1789
    SDL_QuitQuit();
slouken@5123
  1790
    SDL_MouseQuit();
slouken@5123
  1791
    SDL_KeyboardQuit();
slouken@2753
  1792
    SDL_StopEventLoop();
slouken@5123
  1793
slouken@3029
  1794
    SDL_EnableScreenSaver();
slouken@1895
  1795
slouken@2753
  1796
    /* Clean up the system video */
slouken@2753
  1797
    for (i = _this->num_displays; i--;) {
slouken@2753
  1798
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@3685
  1799
        while (display->windows) {
slouken@3685
  1800
            SDL_DestroyWindow(display->windows);
slouken@2753
  1801
        }
slouken@2753
  1802
    }
slouken@2753
  1803
    _this->VideoQuit(_this);
slouken@1895
  1804
slouken@2753
  1805
    for (i = _this->num_displays; i--;) {
slouken@2753
  1806
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  1807
        for (j = display->num_display_modes; j--;) {
slouken@2753
  1808
            if (display->display_modes[j].driverdata) {
slouken@2753
  1809
                SDL_free(display->display_modes[j].driverdata);
slouken@2753
  1810
                display->display_modes[j].driverdata = NULL;
slouken@2753
  1811
            }
slouken@2753
  1812
        }
slouken@2753
  1813
        if (display->display_modes) {
slouken@2753
  1814
            SDL_free(display->display_modes);
slouken@2753
  1815
            display->display_modes = NULL;
slouken@2753
  1816
        }
slouken@2753
  1817
        if (display->desktop_mode.driverdata) {
slouken@2753
  1818
            SDL_free(display->desktop_mode.driverdata);
slouken@2753
  1819
            display->desktop_mode.driverdata = NULL;
slouken@2753
  1820
        }
slouken@2753
  1821
        if (display->gamma) {
slouken@2753
  1822
            SDL_free(display->gamma);
slouken@2753
  1823
            display->gamma = NULL;
slouken@2753
  1824
        }
slouken@2753
  1825
        if (display->driverdata) {
slouken@2753
  1826
            SDL_free(display->driverdata);
slouken@2753
  1827
            display->driverdata = NULL;
slouken@2753
  1828
        }
slouken@2753
  1829
    }
slouken@2753
  1830
    if (_this->displays) {
slouken@2753
  1831
        SDL_free(_this->displays);
slouken@2753
  1832
        _this->displays = NULL;
slouken@2753
  1833
    }
slouken@4495
  1834
    if (_this->clipboard_text) {
slouken@4495
  1835
        SDL_free(_this->clipboard_text);
slouken@4495
  1836
        _this->clipboard_text = NULL;
slouken@4495
  1837
    }
slouken@2753
  1838
    _this->free(_this);
slouken@2753
  1839
    _this = NULL;
slouken@0
  1840
}
slouken@0
  1841
slouken@1895
  1842
int
slouken@1895
  1843
SDL_GL_LoadLibrary(const char *path)
slouken@0
  1844
{
slouken@2753
  1845
    int retval;
slouken@0
  1846
slouken@2753
  1847
    if (!_this) {
slouken@2753
  1848
        SDL_UninitializedVideo();
slouken@2753
  1849
        return -1;
slouken@2753
  1850
    }
slouken@3057
  1851
    if (_this->gl_config.driver_loaded) {
slouken@3057
  1852
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@3057
  1853
            SDL_SetError("OpenGL library already loaded");
slouken@3057
  1854
            return -1;
slouken@3057
  1855
        }
slouken@3057
  1856
        retval = 0;
slouken@3057
  1857
    } else {
slouken@3057
  1858
        if (!_this->GL_LoadLibrary) {
slouken@3057
  1859
            SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  1860
            return -1;
slouken@3057
  1861
        }
slouken@2753
  1862
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  1863
    }
slouken@3057
  1864
    if (retval == 0) {
slouken@3057
  1865
        ++_this->gl_config.driver_loaded;
slouken@2753
  1866
    }
slouken@2753
  1867
    return (retval);
slouken@0
  1868
}
slouken@0
  1869
slouken@2753
  1870
void *
slouken@1895
  1871
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  1872
{
slouken@2753
  1873
    void *func;
slouken@0
  1874
slouken@2753
  1875
    if (!_this) {
slouken@2753
  1876
        SDL_UninitializedVideo();
slouken@2753
  1877
        return NULL;
slouken@2753
  1878
    }
slouken@2753
  1879
    func = NULL;
slouken@2753
  1880
    if (_this->GL_GetProcAddress) {
slouken@2753
  1881
        if (_this->gl_config.driver_loaded) {
slouken@2753
  1882
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  1883
        } else {
slouken@2753
  1884
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  1885
        }
slouken@2753
  1886
    } else {
slouken@2753
  1887
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  1888
    }
slouken@2753
  1889
    return func;
slouken@0
  1890
}
slouken@0
  1891
slouken@3057
  1892
void
slouken@3057
  1893
SDL_GL_UnloadLibrary(void)
slouken@3057
  1894
{
slouken@3057
  1895
    if (!_this) {
slouken@3057
  1896
        SDL_UninitializedVideo();
slouken@3057
  1897
        return;
slouken@3057
  1898
    }
slouken@3057
  1899
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  1900
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  1901
            return;
slouken@3057
  1902
        }
slouken@3057
  1903
        if (_this->GL_UnloadLibrary) {
slouken@3057
  1904
            _this->GL_UnloadLibrary(_this);
slouken@3057
  1905
        }
slouken@3057
  1906
    }
slouken@3057
  1907
}
slouken@3057
  1908
slouken@1926
  1909
SDL_bool
slouken@1926
  1910
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  1911
{
slouken@5209
  1912
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  1913
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  1914
    const char *extensions;
slouken@2753
  1915
    const char *start;
slouken@2753
  1916
    const char *where, *terminator;
slouken@1926
  1917
slouken@2753
  1918
    /* Extension names should not have spaces. */
slouken@2753
  1919
    where = SDL_strchr(extension, ' ');
slouken@2753
  1920
    if (where || *extension == '\0') {
slouken@2753
  1921
        return SDL_FALSE;
slouken@2753
  1922
    }
slouken@2753
  1923
    /* See if there's an environment variable override */
slouken@2753
  1924
    start = SDL_getenv(extension);
slouken@2753
  1925
    if (start && *start == '0') {
slouken@2753
  1926
        return SDL_FALSE;
slouken@2753
  1927
    }
slouken@2753
  1928
    /* Lookup the available extensions */
slouken@2753
  1929
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@2753
  1930
    if (glGetStringFunc) {
slouken@2753
  1931
        extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  1932
    } else {
slouken@2753
  1933
        extensions = NULL;
slouken@2753
  1934
    }
slouken@2753
  1935
    if (!extensions) {
slouken@2753
  1936
        return SDL_FALSE;
slouken@2753
  1937
    }
slouken@2753
  1938
    /*
slouken@2753
  1939
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  1940
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  1941
     */
slouken@1926
  1942
slouken@2753
  1943
    start = extensions;
slouken@1926
  1944
slouken@2753
  1945
    for (;;) {
slouken@2753
  1946
        where = SDL_strstr(start, extension);
slouken@2753
  1947
        if (!where)
slouken@2753
  1948
            break;
slouken@1926
  1949
slouken@2753
  1950
        terminator = where + SDL_strlen(extension);
slouken@2753
  1951
        if (where == start || *(where - 1) == ' ')
slouken@2753
  1952
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  1953
                return SDL_TRUE;
slouken@1926
  1954
slouken@2753
  1955
        start = terminator;
slouken@2753
  1956
    }
slouken@2753
  1957
    return SDL_FALSE;
slouken@1926
  1958
#else
slouken@2753
  1959
    return SDL_FALSE;
slouken@1926
  1960
#endif
slouken@1926
  1961
}
slouken@1926
  1962
slouken@1895
  1963
int
slouken@1895
  1964
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  1965
{
slouken@5209
  1966
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  1967
    int retval;
slouken@0
  1968
slouken@2753
  1969
    if (!_this) {
slouken@2753
  1970
        SDL_UninitializedVideo();
slouken@2753
  1971
        return -1;
slouken@2753
  1972
    }
slouken@2753
  1973
    retval = 0;
slouken@2753
  1974
    switch (attr) {
slouken@2753
  1975
    case SDL_GL_RED_SIZE:
slouken@2753
  1976
        _this->gl_config.red_size = value;
slouken@2753
  1977
        break;
slouken@2753
  1978
    case SDL_GL_GREEN_SIZE:
slouken@2753
  1979
        _this->gl_config.green_size = value;
slouken@2753
  1980
        break;
slouken@2753
  1981
    case SDL_GL_BLUE_SIZE:
slouken@2753
  1982
        _this->gl_config.blue_size = value;
slouken@2753
  1983
        break;
slouken@2753
  1984
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  1985
        _this->gl_config.alpha_size = value;
slouken@2753
  1986
        break;
slouken@2753
  1987
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  1988
        _this->gl_config.double_buffer = value;
slouken@2753
  1989
        break;
slouken@2753
  1990
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  1991
        _this->gl_config.buffer_size = value;
slouken@2753
  1992
        break;
slouken@2753
  1993
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  1994
        _this->gl_config.depth_size = value;
slouken@2753
  1995
        break;
slouken@2753
  1996
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  1997
        _this->gl_config.stencil_size = value;
slouken@2753
  1998
        break;
slouken@2753
  1999
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2000
        _this->gl_config.accum_red_size = value;
slouken@2753
  2001
        break;
slouken@2753
  2002
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2003
        _this->gl_config.accum_green_size = value;
slouken@2753
  2004
        break;
slouken@2753
  2005
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2006
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2007
        break;
slouken@2753
  2008
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2009
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2010
        break;
slouken@2753
  2011
    case SDL_GL_STEREO:
slouken@2753
  2012
        _this->gl_config.stereo = value;
slouken@2753
  2013
        break;
slouken@2753
  2014
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2015
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2016
        break;
slouken@2753
  2017
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2018
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2019
        break;
slouken@2753
  2020
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2021
        _this->gl_config.accelerated = value;
slouken@2753
  2022
        break;
slouken@2753
  2023
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2024
        _this->gl_config.retained_backing = value;
slouken@2753
  2025
        break;
slouken@3100
  2026
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2027
        _this->gl_config.major_version = value;
slouken@3100
  2028
        break;
slouken@3100
  2029
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2030
        _this->gl_config.minor_version = value;
slouken@3100
  2031
        break;
slouken@2753
  2032
    default:
slouken@2753
  2033
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2034
        retval = -1;
slouken@2753
  2035
        break;
slouken@2753
  2036
    }
slouken@2753
  2037
    return retval;
slouken@1936
  2038
#else
slouken@2753
  2039
    SDL_Unsupported();
slouken@2753
  2040
    return -1;
slouken@2753
  2041
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2042
}
slouken@0
  2043
slouken@1895
  2044
int
slouken@1936
  2045
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2046
{
slouken@5209
  2047
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2048
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2049
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2050
    GLenum attrib = 0;
slouken@3099
  2051
    GLenum error = 0;
slouken@1912
  2052
slouken@2753
  2053
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2054
    if (!glGetIntegervFunc) {
slouken@2753
  2055
        return -1;
slouken@2753
  2056
    }
slouken@3099
  2057
slouken@3099
  2058
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2059
    if (!glGetErrorFunc) {
slouken@3099
  2060
        return -1;
slouken@3099
  2061
    }
slouken@3099
  2062
slouken@3099
  2063
    /* Clear value in any case */
slouken@3139
  2064
    *value = 0;
slouken@3099
  2065
slouken@2753
  2066
    switch (attr) {
slouken@2753
  2067
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2068
        *value = _this->gl_config.retained_backing;
slouken@2753
  2069
        return 0;
slouken@2753
  2070
    case SDL_GL_RED_SIZE:
slouken@2753
  2071
        attrib = GL_RED_BITS;
slouken@2753
  2072
        break;
slouken@2753
  2073
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2074
        attrib = GL_BLUE_BITS;
slouken@2753
  2075
        break;
slouken@2753
  2076
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2077
        attrib = GL_GREEN_BITS;
slouken@2753
  2078
        break;
slouken@2753
  2079
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2080
        attrib = GL_ALPHA_BITS;
slouken@2753
  2081
        break;
slouken@2753
  2082
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2083
#if SDL_VIDEO_OPENGL
slouken@2753
  2084
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2085
        break;
hfutrell@2745
  2086
#else
slouken@3099
  2087
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2088
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2089
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2090
        *value = _this->gl_config.double_buffer;
slouken@2753
  2091
        return 0;
hfutrell@2745
  2092
#endif
slouken@2753
  2093
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2094
        attrib = GL_DEPTH_BITS;
slouken@2753
  2095
        break;
slouken@2753
  2096
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2097
        attrib = GL_STENCIL_BITS;
slouken@2753
  2098
        break;
slouken@5209
  2099
#if SDL_VIDEO_OPENGL
slouken@2753
  2100
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2101
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2102
        break;
slouken@2753
  2103
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2104
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2105
        break;
slouken@2753
  2106
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2107
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2108
        break;
slouken@2753
  2109
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2110
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2111
        break;
slouken@2753
  2112
    case SDL_GL_STEREO:
slouken@2753
  2113
        attrib = GL_STEREO;
slouken@2753
  2114
        break;
hfutrell@2745
  2115
#else
slouken@2753
  2116
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2117
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2118
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2119
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2120
    case SDL_GL_STEREO:
slouken@2753
  2121
        /* none of these are supported in OpenGL ES */
slouken@2753
  2122
        *value = 0;
slouken@2753
  2123
        return 0;
hfutrell@2745
  2124
#endif
slouken@2753
  2125
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@5209
  2126
#if SDL_VIDEO_OPENGL
slouken@2753
  2127
        attrib = GL_SAMPLE_BUFFERS_ARB;
hfutrell@2745
  2128
#else
slouken@2753
  2129
        attrib = GL_SAMPLE_BUFFERS;
hfutrell@2745
  2130
#endif
slouken@2753
  2131
        break;
slouken@2753
  2132
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@5209
  2133
#if SDL_VIDEO_OPENGL
slouken@2753
  2134
        attrib = GL_SAMPLES_ARB;
hfutrell@2745
  2135
#else
slouken@2753
  2136
        attrib = GL_SAMPLES;
hfutrell@2745
  2137
#endif
slouken@2753
  2138
        break;
slouken@2753
  2139
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2140
        {
slouken@2753
  2141
            GLint bits = 0;
slouken@2753
  2142
            GLint component;
slouken@1936
  2143
slouken@2753
  2144
            /*
slouken@2753
  2145
             * there doesn't seem to be a single flag in OpenGL
slouken@2753
  2146
             * for this!
slouken@2753
  2147
             */
slouken@2753
  2148
            glGetIntegervFunc(GL_RED_BITS, &component);
slouken@2753
  2149
            bits += component;
slouken@2753
  2150
            glGetIntegervFunc(GL_GREEN_BITS, &component);
slouken@2753
  2151
            bits += component;
slouken@2753
  2152
            glGetIntegervFunc(GL_BLUE_BITS, &component);
slouken@2753
  2153
            bits += component;
slouken@2753
  2154
            glGetIntegervFunc(GL_ALPHA_BITS, &component);
slouken@2753
  2155
            bits += component;
slouken@1936
  2156
slouken@2753
  2157
            *value = bits;
slouken@2753
  2158
            return 0;
slouken@2753
  2159
        }
slouken@2753
  2160
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2161
        {
slouken@2753
  2162
            /* FIXME: How do we get this information? */
slouken@3571
  2163
            *value = (_this->gl_config.accelerated != 0);
slouken@2753
  2164
            return 0;
slouken@2753
  2165
        }
slouken@5210
  2166
    case SDL_GL_RETAINED_BACKING:
slouken@5210
  2167
        {
slouken@5210
  2168
            *value = _this->gl_config.retained_backing;
slouken@5210
  2169
            return 0;
slouken@5210
  2170
        }
slouken@5210
  2171
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@5210
  2172
        {
slouken@5210
  2173
            *value = _this->gl_config.major_version;
slouken@5210
  2174
            return 0;
slouken@5210
  2175
        }
slouken@5210
  2176
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@5210
  2177
        {
slouken@5210
  2178
            *value = _this->gl_config.minor_version;
slouken@5210
  2179
            return 0;
slouken@5210
  2180
        }
slouken@2753
  2181
    default:
slouken@2753
  2182
        SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2183
        return -1;
slouken@2753
  2184
    }
slouken@0
  2185
slouken@2753
  2186
    glGetIntegervFunc(attrib, (GLint *) value);
slouken@3139
  2187
    error = glGetErrorFunc();
slouken@3139
  2188
    if (error != GL_NO_ERROR) {
slouken@3139
  2189
        switch (error) {
slouken@3139
  2190
        case GL_INVALID_ENUM:
slouken@3139
  2191
            {
slouken@3139
  2192
                SDL_SetError("OpenGL error: GL_INVALID_ENUM");
slouken@3139
  2193
            }
slouken@3139
  2194
            break;
slouken@3139
  2195
        case GL_INVALID_VALUE:
slouken@3139
  2196
            {
slouken@3139
  2197
                SDL_SetError("OpenGL error: GL_INVALID_VALUE");
slouken@3139
  2198
            }
slouken@3139
  2199
            break;
slouken@3139
  2200
        default:
slouken@3139
  2201
            {
slouken@3139
  2202
                SDL_SetError("OpenGL error: %08X", error);
slouken@3139
  2203
            }
slouken@3139
  2204
            break;
slouken@3139
  2205
        }
slouken@3139
  2206
        return -1;
slouken@3099
  2207
    }
slouken@2753
  2208
    return 0;
slouken@1936
  2209
#else
slouken@2753
  2210
    SDL_Unsupported();
slouken@2753
  2211
    return -1;
slouken@2753
  2212
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2213
}
slouken@0
  2214
slouken@1912
  2215
SDL_GLContext
slouken@3685
  2216
SDL_GL_CreateContext(SDL_Window * window)
slouken@1912
  2217
{
slouken@3695
  2218
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  2219
slouken@2753
  2220
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2221
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2222
        return NULL;
slouken@2753
  2223
    }
slouken@2753
  2224
    return _this->GL_CreateContext(_this, window);
slouken@1912
  2225
}
slouken@1912
  2226
slouken@1912
  2227
int
slouken@3685
  2228
SDL_GL_MakeCurrent(SDL_Window * window, SDL_GLContext context)
slouken@1912
  2229
{
slouken@3695
  2230
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  2231
slouken@3695
  2232
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2233
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2234
        return -1;
slouken@2753
  2235
    }
slouken@2753
  2236
    if (!context) {
slouken@2753
  2237
        window = NULL;
slouken@2753
  2238
    }
slouken@2753
  2239
    return _this->GL_MakeCurrent(_this, window, context);
slouken@1912
  2240
}
slouken@1912
  2241
slouken@1912
  2242
int
slouken@1912
  2243
SDL_GL_SetSwapInterval(int interval)
slouken@1912
  2244
{
slouken@2753
  2245
    if (!_this) {
slouken@2753
  2246
        SDL_UninitializedVideo();
slouken@2753
  2247
        return -1;
slouken@2753
  2248
    }
slouken@2753
  2249
    if (_this->GL_SetSwapInterval) {
slouken@2753
  2250
        return _this->GL_SetSwapInterval(_this, interval);
slouken@2753
  2251
    } else {
slouken@2753
  2252
        SDL_SetError("Setting the swap interval is not supported");
slouken@2753
  2253
        return -1;
slouken@2753
  2254
    }
slouken@1912
  2255
}
slouken@1912
  2256
slouken@1912
  2257
int
slouken@1912
  2258
SDL_GL_GetSwapInterval(void)
slouken@1912
  2259
{
slouken@2753
  2260
    if (!_this) {
slouken@2753
  2261
        SDL_UninitializedVideo();
slouken@2753
  2262
        return -1;
slouken@2753
  2263
    }
slouken@2753
  2264
    if (_this->GL_GetSwapInterval) {
slouken@2753
  2265
        return _this->GL_GetSwapInterval(_this);
slouken@2753
  2266
    } else {
slouken@2753
  2267
        SDL_SetError("Getting the swap interval is not supported");
slouken@2753
  2268
        return -1;
slouken@2753
  2269
    }
slouken@1912
  2270
}
slouken@1912
  2271
slouken@1895
  2272
void
slouken@3685
  2273
SDL_GL_SwapWindow(SDL_Window * window)
slouken@0
  2274
{
slouken@3695
  2275
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  2276
slouken@2753
  2277
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
slouken@2753
  2278
        SDL_SetError("The specified window isn't an OpenGL window");
slouken@2753
  2279
        return;
slouken@2753
  2280
    }
slouken@2753
  2281
    _this->GL_SwapWindow(_this, window);
slouken@1912
  2282
}
slouken@1912
  2283
slouken@1912
  2284
void
slouken@1912
  2285
SDL_GL_DeleteContext(SDL_GLContext context)
slouken@1912
  2286
{
slouken@4526
  2287
    if (!_this || !_this->gl_data || !context) {
slouken@2753
  2288
        return;
slouken@2753
  2289
    }
slouken@2753
  2290
    _this->GL_MakeCurrent(_this, NULL, NULL);
slouken@2753
  2291
    _this->GL_DeleteContext(_this, context);
slouken@0
  2292
}
slouken@0
  2293
slouken@1895
  2294
#if 0                           // FIXME
hfutrell@2744
  2295
/*
hfutrell@2744
  2296
 * Utility function used by SDL_WM_SetIcon(); flags & 1 for color key, flags
hfutrell@2744
  2297
 * & 2 for alpha channel.
hfutrell@2744
  2298
 */
slouken@1895
  2299
static void
slouken@1895
  2300
CreateMaskFromColorKeyOrAlpha(SDL_Surface * icon, Uint8 * mask, int flags)
slouken@0
  2301
{
slouken@2753
  2302
    int x, y;
slouken@2753
  2303
    Uint32 colorkey;
slouken@0
  2304
#define SET_MASKBIT(icon, x, y, mask) \
slouken@0
  2305
	mask[(y*((icon->w+7)/8))+(x/8)] &= ~(0x01<<(7-(x%8)))
slouken@0
  2306
slouken@2753
  2307
    colorkey = icon->format->colorkey;
slouken@2753
  2308
    switch (icon->format->BytesPerPixel) {
slouken@2753
  2309
    case 1:
slouken@2753
  2310
        {
slouken@2753
  2311
            Uint8 *pixels;
slouken@2753
  2312
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2313
                pixels = (Uint8 *) icon->pixels + y * icon->pitch;
slouken@2753
  2314
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2315
                    if (*pixels++ == colorkey) {
slouken@2753
  2316
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2317
                    }
slouken@2753
  2318
                }
slouken@2753
  2319
            }
slouken@2753
  2320
        }
slouken@2753
  2321
        break;
slouken@0
  2322
slouken@2753
  2323
    case 2:
slouken@2753
  2324
        {
slouken@2753
  2325
            Uint16 *pixels;
slouken@2753
  2326
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2327
                pixels = (Uint16 *) icon->pixels + y * icon->pitch / 2;
slouken@2753
  2328
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2329
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2330
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2331
                    } else if ((flags & 2)
slouken@2753
  2332
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2333
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2334
                    }
slouken@2753
  2335
                    pixels++;
slouken@2753
  2336
                }
slouken@2753
  2337
            }
slouken@2753
  2338
        }
slouken@2753
  2339
        break;
slouken@0
  2340
slouken@2753
  2341
    case 4:
slouken@2753
  2342
        {
slouken@2753
  2343
            Uint32 *pixels;
slouken@2753
  2344
            for (y = 0; y < icon->h; ++y) {
slouken@2753
  2345
                pixels = (Uint32 *) icon->pixels + y * icon->pitch / 4;
slouken@2753
  2346
                for (x = 0; x < icon->w; ++x) {
slouken@2753
  2347
                    if ((flags & 1) && *pixels == colorkey) {
slouken@2753
  2348
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2349
                    } else if ((flags & 2)
slouken@2753
  2350
                               && (*pixels & icon->format->Amask) == 0) {
slouken@2753
  2351
                        SET_MASKBIT(icon, x, y, mask);
slouken@2753
  2352
                    }
slouken@2753
  2353
                    pixels++;
slouken@2753
  2354
                }
slouken@2753
  2355
            }
slouken@2753
  2356
        }
slouken@2753
  2357
        break;
slouken@2753
  2358
    }
slouken@0
  2359
}
slouken@0
  2360
slouken@0
  2361
/*
slouken@0
  2362
 * Sets the window manager icon for the display window.
slouken@0
  2363
 */
slouken@1895
  2364
void
slouken@1895
  2365
SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask)
slouken@0
  2366
{
slouken@2753
  2367
    if (icon && _this->SetIcon) {
slouken@2753
  2368
        /* Generate a mask if necessary, and create the icon! */
slouken@2753
  2369
        if (mask == NULL) {
slouken@2753
  2370
            int mask_len = icon->h * (icon->w + 7) / 8;
slouken@2753
  2371
            int flags = 0;
slouken@2753
  2372
            mask = (Uint8 *) SDL_malloc(mask_len);
slouken@2753
  2373
            if (mask == NULL) {
slouken@2753
  2374
                return;
slouken@2753
  2375
            }
slouken@2753
  2376
            SDL_memset(mask, ~0, mask_len);
slouken@2753
  2377
            if (icon->flags & SDL_SRCCOLORKEY)
slouken@2753
  2378
                flags |= 1;
slouken@2753
  2379
            if (icon->flags & SDL_SRCALPHA)
slouken@2753
  2380
                flags |= 2;
slouken@2753
  2381
            if (flags) {
slouken@2753
  2382
                CreateMaskFromColorKeyOrAlpha(icon, mask, flags);
slouken@2753
  2383
            }
slouken@2753
  2384
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2385
            SDL_free(mask);
slouken@2753
  2386
        } else {
slouken@2753
  2387
            _this->SetIcon(_this, icon, mask);
slouken@2753
  2388
        }
slouken@2753
  2389
    }
slouken@1895
  2390
}
slouken@1895
  2391
#endif
slouken@0
  2392
slouken@1895
  2393
SDL_bool
slouken@3685
  2394
SDL_GetWindowWMInfo(SDL_Window * window, struct SDL_SysWMinfo *info)
slouken@1895
  2395
{
slouken@3695
  2396
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  2397
slouken@4900
  2398
    if (!info) {
slouken@4900
  2399
        return SDL_FALSE;
slouken@4900
  2400
    }
slouken@4900
  2401
    info->subsystem = SDL_SYSWM_UNKNOWN;
slouken@4900
  2402
slouken@3695
  2403
    if (!_this->GetWindowWMInfo) {
slouken@2753
  2404
        return SDL_FALSE;
slouken@2753
  2405
    }
slouken@2753
  2406
    return (_this->GetWindowWMInfo(_this, window, info));
slouken@0
  2407
}
slouken@0
  2408
slouken@3280
  2409
void
slouken@3280
  2410
SDL_StartTextInput(void)
slouken@3280
  2411
{
slouken@3683
  2412
    if (_this && _this->StartTextInput) {
slouken@3280
  2413
        _this->StartTextInput(_this);
slouken@3280
  2414
    }
slouken@3280
  2415
    SDL_EventState(SDL_TEXTINPUT, SDL_ENABLE);
slouken@3280
  2416
    SDL_EventState(SDL_TEXTEDITING, SDL_ENABLE);
slouken@3280
  2417
}
slouken@3280
  2418
slouken@3280
  2419
void
slouken@3280
  2420
SDL_StopTextInput(void)
slouken@3280
  2421
{
slouken@3683
  2422
    if (_this && _this->StopTextInput) {
slouken@3280
  2423
        _this->StopTextInput(_this);
slouken@3280
  2424
    }
slouken@3280
  2425
    SDL_EventState(SDL_TEXTINPUT, SDL_DISABLE);
slouken@3280
  2426
    SDL_EventState(SDL_TEXTEDITING, SDL_DISABLE);
slouken@3280
  2427
}
slouken@3280
  2428
slouken@3280
  2429
void
slouken@3280
  2430
SDL_SetTextInputRect(SDL_Rect *rect)
slouken@3280
  2431
{
slouken@3683
  2432
    if (_this && _this->SetTextInputRect) {
slouken@3280
  2433
        _this->SetTextInputRect(_this, rect);
slouken@3280
  2434
    }
slouken@3280
  2435
}
slouken@3280
  2436
slouken@1895
  2437
/* vi: set ts=4 sw=4 expandtab: */