src/video/SDL_video.c
author Edward Rudd <urkle@outoforder.cc>
Fri, 20 Sep 2013 13:43:00 -0400
changeset 7746 6a05d7352575
parent 7745 c52d519d104a
child 7753 e4c38f17bfad
permissions -rw-r--r--
add in High DPI support (aka Retina)

- based on Jørgen's patch with a few bug fixes
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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/* The high-level video driver subsystem */
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#include "SDL.h"
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#include "SDL_video.h"
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#include "SDL_sysvideo.h"
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#include "SDL_blit.h"
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#include "SDL_pixels_c.h"
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#include "SDL_rect_c.h"
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#include "../events/SDL_events_c.h"
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#include "../timer/SDL_timer_c.h"
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#if SDL_VIDEO_OPENGL
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#include "SDL_opengl.h"
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#endif /* SDL_VIDEO_OPENGL */
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#if SDL_VIDEO_OPENGL_ES
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#include "SDL_opengles.h"
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#endif /* SDL_VIDEO_OPENGL_ES */
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/* GL and GLES2 headers conflict on Linux 32 bits */
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#if SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL
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#include "SDL_opengles2.h"
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#endif /* SDL_VIDEO_OPENGL_ES2 && !SDL_VIDEO_OPENGL */
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#include "SDL_syswm.h"
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/* On Windows, windows.h defines CreateWindow */
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#ifdef CreateWindow
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#undef CreateWindow
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#endif
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/* Available video drivers */
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static VideoBootStrap *bootstrap[] = {
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#if SDL_VIDEO_DRIVER_COCOA
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    &COCOA_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_X11
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    &X11_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DIRECTFB
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    &DirectFB_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_WINDOWS
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    &WINDOWS_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_BWINDOW
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    &BWINDOW_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PANDORA
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    &PND_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_UIKIT
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    &UIKIT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_ANDROID
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    &Android_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_PSP
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    &PSP_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_DUMMY
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    &DUMMY_bootstrap,
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#endif
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    NULL
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};
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static SDL_VideoDevice *_this = NULL;
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#define CHECK_WINDOW_MAGIC(window, retval) \
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    if (!_this) { \
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        SDL_UninitializedVideo(); \
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        return retval; \
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    } \
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    if (!window || window->magic != &_this->window_magic) { \
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        SDL_SetError("Invalid window"); \
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        return retval; \
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    }
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#define CHECK_DISPLAY_INDEX(displayIndex, retval) \
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    if (!_this) { \
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        SDL_UninitializedVideo(); \
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        return retval; \
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    } \
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    if (displayIndex < 0 || displayIndex >= _this->num_displays) { \
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        SDL_SetError("displayIndex must be in the range 0 - %d", \
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                     _this->num_displays - 1); \
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        return retval; \
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    }
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/* Support for framebuffer emulation using an accelerated renderer */
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#define SDL_WINDOWTEXTUREDATA   "_SDL_WindowTextureData"
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typedef struct {
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    SDL_Renderer *renderer;
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    SDL_Texture *texture;
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    void *pixels;
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    int pitch;
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    int bytes_per_pixel;
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} SDL_WindowTextureData;
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static SDL_bool
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ShouldUseTextureFramebuffer()
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{
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    const char *hint;
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    /* If there's no native framebuffer support then there's no option */
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    if (!_this->CreateWindowFramebuffer) {
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        return SDL_TRUE;
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    }
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    /* If the user has specified a software renderer we can't use a
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       texture framebuffer, or renderer creation will go recursive.
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     */
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    hint = SDL_GetHint(SDL_HINT_RENDER_DRIVER);
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    if (hint && SDL_strcasecmp(hint, "software") == 0) {
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        return SDL_FALSE;
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    }
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    /* See if the user or application wants a specific behavior */
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    hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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    if (hint) {
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        if (*hint == '0') {
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            return SDL_FALSE;
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        } else {
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            return SDL_TRUE;
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        }
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    }
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    /* Each platform has different performance characteristics */
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#if defined(__WIN32__)
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    /* GDI BitBlt() is way faster than Direct3D dynamic textures right now.
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     */
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    return SDL_FALSE;
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#elif defined(__MACOSX__)
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    /* Mac OS X uses OpenGL as the native fast path */
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    return SDL_TRUE;
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#elif defined(__LINUX__)
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    /* Properly configured OpenGL drivers are faster than MIT-SHM */
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#if SDL_VIDEO_OPENGL
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    /* Ugh, find a way to cache this value! */
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    {
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        SDL_Window *window;
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        SDL_GLContext context;
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        SDL_bool hasAcceleratedOpenGL = SDL_FALSE;
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        window = SDL_CreateWindow("OpenGL test", -32, -32, 32, 32, SDL_WINDOW_OPENGL|SDL_WINDOW_HIDDEN);
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        if (window) {
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            context = SDL_GL_CreateContext(window);
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            if (context) {
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                const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
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                const char *vendor = NULL;
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                glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
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                if (glGetStringFunc) {
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                    vendor = (const char *) glGetStringFunc(GL_VENDOR);
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                }
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                /* Add more vendors here at will... */
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                if (vendor &&
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                    (SDL_strstr(vendor, "ATI Technologies") ||
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                     SDL_strstr(vendor, "NVIDIA"))) {
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                    hasAcceleratedOpenGL = SDL_TRUE;
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                }
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                SDL_GL_DeleteContext(context);
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            }
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            SDL_DestroyWindow(window);
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        }
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        return hasAcceleratedOpenGL;
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    }
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#elif SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
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    /* Let's be optimistic about this! */
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    return SDL_TRUE;
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#else
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    return SDL_FALSE;
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#endif
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#else
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    /* Play it safe, assume that if there is a framebuffer driver that it's
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       optimized for the current platform.
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    */
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    return SDL_FALSE;
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#endif
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}
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static int
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SDL_CreateWindowTexture(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
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{
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    SDL_WindowTextureData *data;
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    SDL_RendererInfo info;
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    Uint32 i;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data) {
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        SDL_Renderer *renderer = NULL;
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        SDL_RendererInfo info;
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        int i;
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        const char *hint = SDL_GetHint(SDL_HINT_FRAMEBUFFER_ACCELERATION);
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        /* Check to see if there's a specific driver requested */
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        if (hint && *hint != '0' && *hint != '1' &&
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            SDL_strcasecmp(hint, "software") != 0) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcasecmp(info.name, hint) == 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    break;
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                }
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            }
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        }
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        if (!renderer) {
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            for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
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                SDL_GetRenderDriverInfo(i, &info);
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                if (SDL_strcmp(info.name, "software") != 0) {
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                    renderer = SDL_CreateRenderer(window, i, 0);
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                    if (renderer) {
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                        break;
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                    }
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                }
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            }
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        }
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        if (!renderer) {
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            return SDL_SetError("No hardware accelerated renderers available");
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        }
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        /* Create the data after we successfully create the renderer (bug #1116) */
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        data = (SDL_WindowTextureData *)SDL_calloc(1, sizeof(*data));
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        if (!data) {
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            SDL_DestroyRenderer(renderer);
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            return SDL_OutOfMemory();
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        }
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        SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, data);
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        data->renderer = renderer;
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    }
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    /* Free any old texture and pixel data */
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    if (data->texture) {
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        SDL_DestroyTexture(data->texture);
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        data->texture = NULL;
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    }
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    SDL_free(data->pixels);
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    data->pixels = NULL;
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    if (SDL_GetRendererInfo(data->renderer, &info) < 0) {
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        return -1;
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    }
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    /* Find the first format without an alpha channel */
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    *format = info.texture_formats[0];
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    for (i = 0; i < info.num_texture_formats; ++i) {
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        if (!SDL_ISPIXELFORMAT_FOURCC(info.texture_formats[i]) &&
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            !SDL_ISPIXELFORMAT_ALPHA(info.texture_formats[i])) {
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            *format = info.texture_formats[i];
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            break;
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        }
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    }
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    data->texture = SDL_CreateTexture(data->renderer, *format,
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                                      SDL_TEXTUREACCESS_STREAMING,
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                                      window->w, window->h);
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    if (!data->texture) {
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        return -1;
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    }
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    /* Create framebuffer data */
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    data->bytes_per_pixel = SDL_BYTESPERPIXEL(*format);
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    data->pitch = (((window->w * data->bytes_per_pixel) + 3) & ~3);
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    data->pixels = SDL_malloc(window->h * data->pitch);
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    if (!data->pixels) {
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        return SDL_OutOfMemory();
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    }
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    *pixels = data->pixels;
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    *pitch = data->pitch;
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    /* Make sure we're not double-scaling the viewport */
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    SDL_RenderSetViewport(data->renderer, NULL);
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   304
    return 0;
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}
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static int
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SDL_UpdateWindowTexture(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
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{
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    SDL_WindowTextureData *data;
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    SDL_Rect rect;
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    void *src;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data || !data->texture) {
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        return SDL_SetError("No window texture data");
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    }
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    /* Update a single rect that contains subrects for best DMA performance */
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    if (SDL_GetSpanEnclosingRect(window->w, window->h, numrects, rects, &rect)) {
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        src = (void *)((Uint8 *)data->pixels +
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                        rect.y * data->pitch +
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                        rect.x * data->bytes_per_pixel);
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        if (SDL_UpdateTexture(data->texture, &rect, src, data->pitch) < 0) {
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            return -1;
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        }
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   328
        if (SDL_RenderCopy(data->renderer, data->texture, NULL, NULL) < 0) {
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            return -1;
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   330
        }
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   331
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   332
        SDL_RenderPresent(data->renderer);
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   333
    }
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    return 0;
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}
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   337
static void
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   338
SDL_DestroyWindowTexture(_THIS, SDL_Window * window)
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   339
{
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   340
    SDL_WindowTextureData *data;
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   341
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   342
    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
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   343
    if (!data) {
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        return;
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   345
    }
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   346
    if (data->texture) {
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   347
        SDL_DestroyTexture(data->texture);
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   348
    }
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   349
    if (data->renderer) {
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   350
        SDL_DestroyRenderer(data->renderer);
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    }
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    SDL_free(data->pixels);
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   353
    SDL_free(data);
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   354
}
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   355
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   356
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   357
static int
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cmpmodes(const void *A, const void *B)
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   359
{
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    const SDL_DisplayMode *a = (const SDL_DisplayMode *) A;
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    const SDL_DisplayMode *b = (const SDL_DisplayMode *) B;
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    if (a == b) {
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        return 0;
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   364
    } else if (a->w != b->w) {
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   365
        return b->w - a->w;
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   366
    } else if (a->h != b->h) {
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        return b->h - a->h;
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   368
    } else if (SDL_BITSPERPIXEL(a->format) != SDL_BITSPERPIXEL(b->format)) {
icculus@7440
   369
        return SDL_BITSPERPIXEL(b->format) - SDL_BITSPERPIXEL(a->format);
icculus@7440
   370
    } else if (SDL_PIXELLAYOUT(a->format) != SDL_PIXELLAYOUT(b->format)) {
icculus@7440
   371
        return SDL_PIXELLAYOUT(b->format) - SDL_PIXELLAYOUT(a->format);
icculus@7440
   372
    } else if (a->refresh_rate != b->refresh_rate) {
icculus@7440
   373
        return b->refresh_rate - a->refresh_rate;
slouken@2753
   374
    }
slouken@2753
   375
    return 0;
slouken@1895
   376
}
slouken@1895
   377
icculus@7037
   378
static int
slouken@1912
   379
SDL_UninitializedVideo()
slouken@1912
   380
{
icculus@7037
   381
    return SDL_SetError("Video subsystem has not been initialized");
slouken@1912
   382
}
slouken@1912
   383
slouken@1895
   384
int
slouken@1895
   385
SDL_GetNumVideoDrivers(void)
slouken@1895
   386
{
slouken@2753
   387
    return SDL_arraysize(bootstrap) - 1;
slouken@1895
   388
}
slouken@1895
   389
slouken@2753
   390
const char *
slouken@1895
   391
SDL_GetVideoDriver(int index)
slouken@1895
   392
{
slouken@2753
   393
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@2753
   394
        return bootstrap[index]->name;
slouken@2753
   395
    }
slouken@2753
   396
    return NULL;
slouken@1895
   397
}
slouken@0
   398
slouken@0
   399
/*
slouken@0
   400
 * Initialize the video and event subsystems -- determine native pixel format
slouken@0
   401
 */
slouken@1895
   402
int
slouken@5123
   403
SDL_VideoInit(const char *driver_name)
slouken@0
   404
{
slouken@2753
   405
    SDL_VideoDevice *video;
slouken@2753
   406
    int index;
slouken@2753
   407
    int i;
slouken@0
   408
slouken@3694
   409
    /* Check to make sure we don't overwrite '_this' */
slouken@3694
   410
    if (_this != NULL) {
slouken@3694
   411
        SDL_VideoQuit();
slouken@3694
   412
    }
slouken@7191
   413
urkle@7139
   414
#if !SDL_TIMERS_DISABLED
urkle@7139
   415
    SDL_InitTicks();
urkle@7139
   416
#endif
slouken@3694
   417
slouken@2753
   418
    /* Start the event loop */
slouken@7360
   419
    if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0 ||
slouken@5123
   420
        SDL_KeyboardInit() < 0 ||
slouken@5123
   421
        SDL_MouseInit() < 0 ||
slouken@7360
   422
        SDL_TouchInit() < 0) {
slouken@2753
   423
        return -1;
slouken@2753
   424
    }
slouken@3694
   425
slouken@2753
   426
    /* Select the proper video driver */
slouken@2753
   427
    index = 0;
slouken@2753
   428
    video = NULL;
slouken@2753
   429
    if (driver_name == NULL) {
slouken@2753
   430
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@2753
   431
    }
slouken@2753
   432
    if (driver_name != NULL) {
slouken@2753
   433
        for (i = 0; bootstrap[i]; ++i) {
slouken@6900
   434
            if (SDL_strncasecmp(bootstrap[i]->name, driver_name, SDL_strlen(driver_name)) == 0) {
slouken@3448
   435
                video = bootstrap[i]->create(index);
slouken@2753
   436
                break;
slouken@2753
   437
            }
slouken@2753
   438
        }
slouken@2753
   439
    } else {
slouken@2753
   440
        for (i = 0; bootstrap[i]; ++i) {
slouken@2753
   441
            if (bootstrap[i]->available()) {
slouken@2753
   442
                video = bootstrap[i]->create(index);
slouken@2753
   443
                if (video != NULL) {
slouken@2753
   444
                    break;
slouken@2753
   445
                }
slouken@2753
   446
            }
slouken@2753
   447
        }
slouken@2753
   448
    }
slouken@2753
   449
    if (video == NULL) {
slouken@2753
   450
        if (driver_name) {
icculus@7037
   451
            return SDL_SetError("%s not available", driver_name);
slouken@2753
   452
        }
icculus@7037
   453
        return SDL_SetError("No available video device");
slouken@2753
   454
    }
slouken@2753
   455
    _this = video;
slouken@2753
   456
    _this->name = bootstrap[i]->name;
slouken@2753
   457
    _this->next_object_id = 1;
slouken@0
   458
slouken@0
   459
slouken@2753
   460
    /* Set some very sane GL defaults */
slouken@2753
   461
    _this->gl_config.driver_loaded = 0;
slouken@2753
   462
    _this->gl_config.dll_handle = NULL;
slouken@2753
   463
    _this->gl_config.red_size = 3;
slouken@2753
   464
    _this->gl_config.green_size = 3;
slouken@2753
   465
    _this->gl_config.blue_size = 2;
slouken@2753
   466
    _this->gl_config.alpha_size = 0;
slouken@2753
   467
    _this->gl_config.buffer_size = 0;
slouken@2753
   468
    _this->gl_config.depth_size = 16;
slouken@2753
   469
    _this->gl_config.stencil_size = 0;
slouken@2753
   470
    _this->gl_config.double_buffer = 1;
slouken@2753
   471
    _this->gl_config.accum_red_size = 0;
slouken@2753
   472
    _this->gl_config.accum_green_size = 0;
slouken@2753
   473
    _this->gl_config.accum_blue_size = 0;
slouken@2753
   474
    _this->gl_config.accum_alpha_size = 0;
slouken@2753
   475
    _this->gl_config.stereo = 0;
slouken@2753
   476
    _this->gl_config.multisamplebuffers = 0;
slouken@2753
   477
    _this->gl_config.multisamplesamples = 0;
slouken@2753
   478
    _this->gl_config.retained_backing = 1;
slouken@3571
   479
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
gabomdq@7723
   480
    _this->gl_config.profile_mask = 0;
slouken@5209
   481
#if SDL_VIDEO_OPENGL
slouken@3100
   482
    _this->gl_config.major_version = 2;
slouken@3100
   483
    _this->gl_config.minor_version = 1;
slouken@7745
   484
#elif SDL_VIDEO_OPENGL_ES2
slouken@7745
   485
    _this->gl_config.major_version = 2;
slouken@7745
   486
    _this->gl_config.minor_version = 0;
slouken@7745
   487
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;   
slouken@5217
   488
#elif SDL_VIDEO_OPENGL_ES
slouken@5217
   489
    _this->gl_config.major_version = 1;
slouken@5217
   490
    _this->gl_config.minor_version = 1;
gabomdq@7723
   491
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
gabomdq@7659
   492
#endif
slouken@6296
   493
    _this->gl_config.flags = 0;
gabomdq@7723
   494
    
slouken@6393
   495
    _this->gl_config.share_with_current_context = 0;
slouken@0
   496
slouken@7412
   497
    _this->current_glwin_tls = SDL_TLSCreate();
slouken@7412
   498
    _this->current_glctx_tls = SDL_TLSCreate();
slouken@7412
   499
slouken@2753
   500
    /* Initialize the video subsystem */
slouken@2753
   501
    if (_this->VideoInit(_this) < 0) {
slouken@2753
   502
        SDL_VideoQuit();
slouken@2753
   503
        return -1;
slouken@2753
   504
    }
slouken@5166
   505
slouken@2753
   506
    /* Make sure some displays were added */
slouken@2753
   507
    if (_this->num_displays == 0) {
slouken@2753
   508
        SDL_VideoQuit();
icculus@7037
   509
        return SDL_SetError("The video driver did not add any displays");
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@6670
   519
    /* If we don't use a screen keyboard, turn on text input by default,
slouken@6670
   520
       otherwise programs that expect to get text events without enabling
slouken@6670
   521
       UNICODE input won't get any events.
slouken@6670
   522
slouken@6670
   523
       Actually, come to think of it, you needed to call SDL_EnableUNICODE(1)
slouken@6670
   524
       in SDL 1.2 before you got text input events.  Hmm...
slouken@6670
   525
     */
slouken@6670
   526
    if (!SDL_HasScreenKeyboardSupport()) {
slouken@6670
   527
        SDL_StartTextInput();
slouken@6670
   528
    }
slouken@6670
   529
slouken@2753
   530
    /* We're ready to go! */
slouken@2753
   531
    return 0;
slouken@0
   532
}
slouken@0
   533
slouken@2753
   534
const char *
slouken@1895
   535
SDL_GetCurrentVideoDriver()
slouken@0
   536
{
slouken@2753
   537
    if (!_this) {
slouken@2753
   538
        SDL_UninitializedVideo();
slouken@2753
   539
        return NULL;
slouken@2753
   540
    }
slouken@2753
   541
    return _this->name;
slouken@0
   542
}
slouken@0
   543
slouken@1895
   544
SDL_VideoDevice *
slouken@4472
   545
SDL_GetVideoDevice(void)
slouken@0
   546
{
slouken@2753
   547
    return _this;
slouken@0
   548
}
slouken@0
   549
slouken@1895
   550
int
slouken@1895
   551
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@0
   552
{
slouken@2753
   553
    SDL_VideoDisplay display;
slouken@0
   554
slouken@2753
   555
    SDL_zero(display);
slouken@2753
   556
    if (desktop_mode) {
slouken@2753
   557
        display.desktop_mode = *desktop_mode;
slouken@2753
   558
    }
slouken@2753
   559
    display.current_mode = display.desktop_mode;
slouken@1895
   560
slouken@2753
   561
    return SDL_AddVideoDisplay(&display);
slouken@0
   562
}
slouken@0
   563
slouken@1895
   564
int
slouken@1895
   565
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@0
   566
{
slouken@2753
   567
    SDL_VideoDisplay *displays;
slouken@2753
   568
    int index = -1;
slouken@0
   569
slouken@2753
   570
    displays =
slouken@2753
   571
        SDL_realloc(_this->displays,
slouken@2753
   572
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@2753
   573
    if (displays) {
slouken@2753
   574
        index = _this->num_displays++;
slouken@2753
   575
        displays[index] = *display;
slouken@2753
   576
        displays[index].device = _this;
slouken@2753
   577
        _this->displays = displays;
slouken@6787
   578
slouken@6787
   579
        if (display->name) {
slouken@6787
   580
            displays[index].name = SDL_strdup(display->name);
slouken@6787
   581
        } else {
slouken@6787
   582
            char name[32];
slouken@6787
   583
slouken@6787
   584
            SDL_itoa(index, name, 10);
slouken@6787
   585
            displays[index].name = SDL_strdup(name);
slouken@6787
   586
        }
slouken@2753
   587
    } else {
slouken@2753
   588
        SDL_OutOfMemory();
slouken@2753
   589
    }
slouken@2753
   590
    return index;
slouken@0
   591
}
slouken@0
   592
slouken@1895
   593
int
slouken@1895
   594
SDL_GetNumVideoDisplays(void)
slouken@0
   595
{
slouken@2753
   596
    if (!_this) {
slouken@2753
   597
        SDL_UninitializedVideo();
slouken@2753
   598
        return 0;
slouken@2753
   599
    }
slouken@2753
   600
    return _this->num_displays;
slouken@0
   601
}
slouken@0
   602
slouken@6044
   603
static int
slouken@5380
   604
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@5380
   605
{
slouken@5380
   606
    int displayIndex;
slouken@5380
   607
slouken@5380
   608
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@5380
   609
        if (display == &_this->displays[displayIndex]) {
slouken@5380
   610
            return displayIndex;
slouken@5380
   611
        }
slouken@5380
   612
    }
slouken@5380
   613
slouken@5380
   614
    /* Couldn't find the display, just use index 0 */
slouken@5380
   615
    return 0;
slouken@5380
   616
}
slouken@5380
   617
slouken@7742
   618
void *
slouken@7742
   619
SDL_GetDisplayDriverData( int displayIndex )
slouken@7742
   620
{
slouken@7742
   621
	CHECK_DISPLAY_INDEX( displayIndex, NULL );
slouken@7742
   622
slouken@7742
   623
	return _this->displays[displayIndex].driverdata;
slouken@7742
   624
}
slouken@7742
   625
slouken@6787
   626
const char *
slouken@6787
   627
SDL_GetDisplayName(int displayIndex)
slouken@6787
   628
{
slouken@6787
   629
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@6787
   630
slouken@6787
   631
    return _this->displays[displayIndex].name;
slouken@6787
   632
}
slouken@6787
   633
slouken@5380
   634
int
slouken@5244
   635
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@3528
   636
{
slouken@5244
   637
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   638
slouken@3528
   639
    if (rect) {
slouken@5244
   640
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@3528
   641
slouken@3528
   642
        if (_this->GetDisplayBounds) {
slouken@5249
   643
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@5249
   644
                return 0;
slouken@3528
   645
            }
slouken@5249
   646
        }
slouken@5249
   647
slouken@5249
   648
        /* Assume that the displays are left to right */
slouken@5249
   649
        if (displayIndex == 0) {
slouken@5249
   650
            rect->x = 0;
slouken@5249
   651
            rect->y = 0;
slouken@3528
   652
        } else {
slouken@5249
   653
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@5249
   654
            rect->x += rect->w;
slouken@3528
   655
        }
slouken@6518
   656
        rect->w = display->current_mode.w;
slouken@6518
   657
        rect->h = display->current_mode.h;
slouken@3528
   658
    }
slouken@3528
   659
    return 0;
slouken@3528
   660
}
slouken@3528
   661
slouken@1895
   662
SDL_bool
slouken@3500
   663
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@0
   664
{
slouken@2753
   665
    SDL_DisplayMode *modes;
slouken@2753
   666
    int i, nmodes;
slouken@0
   667
slouken@2753
   668
    /* Make sure we don't already have the mode in the list */
slouken@2753
   669
    modes = display->display_modes;
slouken@2753
   670
    nmodes = display->num_display_modes;
icculus@7441
   671
    for (i = 0; i < nmodes; ++i) {
icculus@7439
   672
        if (cmpmodes(mode, &modes[i]) == 0) {
slouken@2753
   673
            return SDL_FALSE;
slouken@2753
   674
        }
slouken@2753
   675
    }
slouken@1895
   676
slouken@2753
   677
    /* Go ahead and add the new mode */
slouken@2753
   678
    if (nmodes == display->max_display_modes) {
slouken@2753
   679
        modes =
slouken@2753
   680
            SDL_realloc(modes,
slouken@2753
   681
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@2753
   682
        if (!modes) {
slouken@2753
   683
            return SDL_FALSE;
slouken@2753
   684
        }
slouken@2753
   685
        display->display_modes = modes;
slouken@2753
   686
        display->max_display_modes += 32;
slouken@2753
   687
    }
slouken@2753
   688
    modes[nmodes] = *mode;
slouken@2753
   689
    display->num_display_modes++;
slouken@1895
   690
lestat@3178
   691
    /* Re-sort video modes */
lestat@3178
   692
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3186
   693
              sizeof(SDL_DisplayMode), cmpmodes);
lestat@3178
   694
slouken@2753
   695
    return SDL_TRUE;
slouken@0
   696
}
slouken@0
   697
slouken@5244
   698
static int
slouken@3500
   699
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@3500
   700
{
slouken@3500
   701
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@3500
   702
        _this->GetDisplayModes(_this, display);
slouken@3500
   703
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@3500
   704
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@3500
   705
    }
slouken@3500
   706
    return display->num_display_modes;
slouken@3500
   707
}
slouken@3500
   708
slouken@3500
   709
int
slouken@5244
   710
SDL_GetNumDisplayModes(int displayIndex)
slouken@0
   711
{
slouken@5244
   712
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   713
slouken@5244
   714
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@3500
   715
}
slouken@3500
   716
slouken@3500
   717
int
slouken@5244
   718
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@3500
   719
{
slouken@5244
   720
    SDL_VideoDisplay *display;
slouken@5244
   721
slouken@5244
   722
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   723
slouken@5244
   724
    display = &_this->displays[displayIndex];
slouken@3500
   725
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
icculus@7037
   726
        return SDL_SetError("index must be in the range of 0 - %d",
icculus@7037
   727
                            SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@3500
   728
    }
slouken@3500
   729
    if (mode) {
slouken@3500
   730
        *mode = display->display_modes[index];
slouken@2753
   731
    }
slouken@2753
   732
    return 0;
slouken@0
   733
}
slouken@0
   734
slouken@1967
   735
int
slouken@5244
   736
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   737
{
slouken@5244
   738
    SDL_VideoDisplay *display;
slouken@3500
   739
slouken@5244
   740
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   741
slouken@5244
   742
    display = &_this->displays[displayIndex];
slouken@2753
   743
    if (mode) {
slouken@3500
   744
        *mode = display->desktop_mode;
slouken@2753
   745
    }
slouken@2753
   746
    return 0;
slouken@0
   747
}
slouken@0
   748
slouken@1967
   749
int
slouken@5244
   750
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@0
   751
{
slouken@5244
   752
    SDL_VideoDisplay *display;
slouken@3500
   753
slouken@5244
   754
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@5244
   755
slouken@5244
   756
    display = &_this->displays[displayIndex];
slouken@2753
   757
    if (mode) {
slouken@3500
   758
        *mode = display->current_mode;
slouken@2753
   759
    }
slouken@2753
   760
    return 0;
slouken@0
   761
}
slouken@0
   762
slouken@5244
   763
static SDL_DisplayMode *
slouken@3500
   764
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@3500
   765
                                    const SDL_DisplayMode * mode,
slouken@3500
   766
                                    SDL_DisplayMode * closest)
slouken@0
   767
{
slouken@2753
   768
    Uint32 target_format;
slouken@2753
   769
    int target_refresh_rate;
slouken@2753
   770
    int i;
slouken@2753
   771
    SDL_DisplayMode *current, *match;
slouken@0
   772
slouken@3500
   773
    if (!mode || !closest) {
slouken@3500
   774
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@2753
   775
        return NULL;
slouken@2753
   776
    }
slouken@3500
   777
slouken@2753
   778
    /* Default to the desktop format */
slouken@2753
   779
    if (mode->format) {
slouken@2753
   780
        target_format = mode->format;
slouken@2753
   781
    } else {
slouken@3500
   782
        target_format = display->desktop_mode.format;
slouken@2753
   783
    }
slouken@0
   784
slouken@2753
   785
    /* Default to the desktop refresh rate */
slouken@2753
   786
    if (mode->refresh_rate) {
slouken@2753
   787
        target_refresh_rate = mode->refresh_rate;
slouken@2753
   788
    } else {
slouken@3500
   789
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@2753
   790
    }
slouken@0
   791
slouken@2753
   792
    match = NULL;
slouken@3500
   793
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@3500
   794
        current = &display->display_modes[i];
slouken@0
   795
slouken@2789
   796
        if (current->w && (current->w < mode->w)) {
slouken@2753
   797
            /* Out of sorted modes large enough here */
slouken@2753
   798
            break;
slouken@2753
   799
        }
slouken@2789
   800
        if (current->h && (current->h < mode->h)) {
slouken@2789
   801
            if (current->w && (current->w == mode->w)) {
slouken@2789
   802
                /* Out of sorted modes large enough here */
slouken@2789
   803
                break;
slouken@2789
   804
            }
slouken@2789
   805
            /* Wider, but not tall enough, due to a different
slouken@2789
   806
               aspect ratio. This mode must be skipped, but closer
slouken@2789
   807
               modes may still follow. */
slouken@2789
   808
            continue;
slouken@2789
   809
        }
slouken@2753
   810
        if (!match || current->w < match->w || current->h < match->h) {
slouken@2753
   811
            match = current;
slouken@2753
   812
            continue;
slouken@2753
   813
        }
slouken@2753
   814
        if (current->format != match->format) {
slouken@2753
   815
            /* Sorted highest depth to lowest */
slouken@2753
   816
            if (current->format == target_format ||
slouken@2753
   817
                (SDL_BITSPERPIXEL(current->format) >=
slouken@2753
   818
                 SDL_BITSPERPIXEL(target_format)
slouken@2753
   819
                 && SDL_PIXELTYPE(current->format) ==
slouken@2753
   820
                 SDL_PIXELTYPE(target_format))) {
slouken@2753
   821
                match = current;
slouken@2753
   822
            }
slouken@2753
   823
            continue;
slouken@2753
   824
        }
slouken@2753
   825
        if (current->refresh_rate != match->refresh_rate) {
slouken@2753
   826
            /* Sorted highest refresh to lowest */
slouken@2753
   827
            if (current->refresh_rate >= target_refresh_rate) {
slouken@2753
   828
                match = current;
slouken@2753
   829
            }
slouken@2753
   830
        }
slouken@2753
   831
    }
slouken@2753
   832
    if (match) {
slouken@2753
   833
        if (match->format) {
slouken@2753
   834
            closest->format = match->format;
slouken@2753
   835
        } else {
slouken@2753
   836
            closest->format = mode->format;
slouken@2753
   837
        }
slouken@2753
   838
        if (match->w && match->h) {
slouken@2753
   839
            closest->w = match->w;
slouken@2753
   840
            closest->h = match->h;
slouken@2753
   841
        } else {
slouken@2753
   842
            closest->w = mode->w;
slouken@2753
   843
            closest->h = mode->h;
slouken@2753
   844
        }
slouken@2753
   845
        if (match->refresh_rate) {
slouken@2753
   846
            closest->refresh_rate = match->refresh_rate;
slouken@2753
   847
        } else {
slouken@2753
   848
            closest->refresh_rate = mode->refresh_rate;
slouken@2753
   849
        }
slouken@2753
   850
        closest->driverdata = match->driverdata;
slouken@1895
   851
slouken@2753
   852
        /*
slouken@2753
   853
         * Pick some reasonable defaults if the app and driver don't
slouken@2753
   854
         * care
slouken@2753
   855
         */
slouken@2753
   856
        if (!closest->format) {
slouken@2753
   857
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@2753
   858
        }
slouken@2753
   859
        if (!closest->w) {
slouken@2753
   860
            closest->w = 640;
slouken@2753
   861
        }
slouken@2753
   862
        if (!closest->h) {
slouken@2753
   863
            closest->h = 480;
slouken@2753
   864
        }
slouken@2753
   865
        return closest;
slouken@2753
   866
    }
slouken@2753
   867
    return NULL;
slouken@0
   868
}
slouken@0
   869
slouken@3500
   870
SDL_DisplayMode *
slouken@5244
   871
SDL_GetClosestDisplayMode(int displayIndex,
slouken@5244
   872
                          const SDL_DisplayMode * mode,
slouken@3500
   873
                          SDL_DisplayMode * closest)
slouken@3500
   874
{
slouken@5244
   875
    SDL_VideoDisplay *display;
slouken@5244
   876
slouken@5244
   877
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@5244
   878
slouken@5244
   879
    display = &_this->displays[displayIndex];
slouken@5244
   880
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@3500
   881
}
slouken@3500
   882
slouken@6044
   883
static int
slouken@3500
   884
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@0
   885
{
slouken@2753
   886
    SDL_DisplayMode display_mode;
slouken@2753
   887
    SDL_DisplayMode current_mode;
slouken@0
   888
slouken@3502
   889
    if (mode) {
slouken@3502
   890
        display_mode = *mode;
slouken@3502
   891
slouken@3502
   892
        /* Default to the current mode */
slouken@3502
   893
        if (!display_mode.format) {
slouken@3502
   894
            display_mode.format = display->current_mode.format;
slouken@3502
   895
        }
slouken@3502
   896
        if (!display_mode.w) {
slouken@3502
   897
            display_mode.w = display->current_mode.w;
slouken@3502
   898
        }
slouken@3502
   899
        if (!display_mode.h) {
slouken@3502
   900
            display_mode.h = display->current_mode.h;
slouken@3502
   901
        }
slouken@3502
   902
        if (!display_mode.refresh_rate) {
slouken@3502
   903
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@3502
   904
        }
slouken@3502
   905
slouken@3502
   906
        /* Get a good video mode, the closest one possible */
slouken@3502
   907
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
icculus@7037
   908
            return SDL_SetError("No video mode large enough for %dx%d",
icculus@7037
   909
                                display_mode.w, display_mode.h);
slouken@3502
   910
        }
slouken@3502
   911
    } else {
slouken@3502
   912
        display_mode = display->desktop_mode;
slouken@2753
   913
    }
slouken@3500
   914
slouken@2753
   915
    /* See if there's anything left to do */
slouken@5244
   916
    current_mode = display->current_mode;
slouken@2753
   917
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@2753
   918
        return 0;
slouken@2753
   919
    }
slouken@3500
   920
slouken@2753
   921
    /* Actually change the display mode */
slouken@4978
   922
    if (!_this->SetDisplayMode) {
icculus@7037
   923
        return SDL_SetError("Video driver doesn't support changing display mode");
slouken@4978
   924
    }
slouken@3500
   925
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@2753
   926
        return -1;
slouken@2753
   927
    }
slouken@2753
   928
    display->current_mode = display_mode;
slouken@2753
   929
    return 0;
slouken@0
   930
}
slouken@0
   931
slouken@1895
   932
int
slouken@6786
   933
SDL_GetWindowDisplayIndex(SDL_Window * window)
slouken@5246
   934
{
slouken@5246
   935
    int displayIndex;
slouken@5246
   936
    int i, dist;
slouken@5246
   937
    int closest = -1;
slouken@5246
   938
    int closest_dist = 0x7FFFFFFF;
slouken@5246
   939
    SDL_Point center;
slouken@5246
   940
    SDL_Point delta;
slouken@5246
   941
    SDL_Rect rect;
slouken@5246
   942
slouken@5246
   943
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5246
   944
slouken@5246
   945
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@5246
   946
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@5246
   947
        displayIndex = (window->x & 0xFFFF);
slouken@5246
   948
        if (displayIndex >= _this->num_displays) {
slouken@5246
   949
            displayIndex = 0;
slouken@5246
   950
        }
slouken@5246
   951
        return displayIndex;
slouken@5246
   952
    }
slouken@5246
   953
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@5246
   954
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@5246
   955
        displayIndex = (window->y & 0xFFFF);
slouken@5246
   956
        if (displayIndex >= _this->num_displays) {
slouken@5246
   957
            displayIndex = 0;
slouken@5246
   958
        }
slouken@5246
   959
        return displayIndex;
slouken@5246
   960
    }
slouken@5246
   961
slouken@5246
   962
    /* Find the display containing the window */
slouken@6547
   963
    for (i = 0; i < _this->num_displays; ++i) {
slouken@6547
   964
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@6547
   965
slouken@6547
   966
        if (display->fullscreen_window == window) {
slouken@6547
   967
            return i;
slouken@6547
   968
        }
slouken@6547
   969
    }
slouken@5246
   970
    center.x = window->x + window->w / 2;
slouken@5246
   971
    center.y = window->y + window->h / 2;
slouken@5246
   972
    for (i = 0; i < _this->num_displays; ++i) {
slouken@5246
   973
        SDL_GetDisplayBounds(i, &rect);
slouken@6547
   974
        if (SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@5246
   975
            return i;
slouken@5246
   976
        }
slouken@5246
   977
slouken@5246
   978
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@5246
   979
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@5246
   980
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@5246
   981
        if (dist < closest_dist) {
slouken@5246
   982
            closest = i;
slouken@5246
   983
            closest_dist = dist;
slouken@5246
   984
        }
slouken@5246
   985
    }
slouken@5246
   986
    if (closest < 0) {
slouken@5246
   987
        SDL_SetError("Couldn't find any displays");
slouken@5246
   988
    }
slouken@5246
   989
    return closest;
slouken@5246
   990
}
slouken@5246
   991
slouken@5246
   992
SDL_VideoDisplay *
slouken@5246
   993
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@5246
   994
{
slouken@6786
   995
    int displayIndex = SDL_GetWindowDisplayIndex(window);
slouken@5373
   996
    if (displayIndex >= 0) {
slouken@5373
   997
        return &_this->displays[displayIndex];
slouken@5373
   998
    } else {
slouken@5373
   999
        return NULL;
slouken@5373
  1000
    }
slouken@5246
  1001
}
slouken@5246
  1002
slouken@5246
  1003
int
slouken@3685
  1004
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@3500
  1005
{
slouken@3695
  1006
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1007
slouken@2753
  1008
    if (mode) {
slouken@3500
  1009
        window->fullscreen_mode = *mode;
slouken@3500
  1010
    } else {
slouken@3500
  1011
        SDL_zero(window->fullscreen_mode);
slouken@3500
  1012
    }
slouken@3526
  1013
    return 0;
slouken@3500
  1014
}
slouken@3500
  1015
slouken@3500
  1016
int
slouken@3685
  1017
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@3500
  1018
{
slouken@3500
  1019
    SDL_DisplayMode fullscreen_mode;
slouken@7191
  1020
    SDL_VideoDisplay *display;
slouken@3500
  1021
aschiffler@6936
  1022
    if (!mode) {
icculus@7037
  1023
      return SDL_InvalidParamError("mode");
aschiffler@6936
  1024
    }
slouken@7191
  1025
slouken@3695
  1026
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3500
  1027
slouken@3500
  1028
    fullscreen_mode = window->fullscreen_mode;
slouken@3500
  1029
    if (!fullscreen_mode.w) {
slouken@3500
  1030
        fullscreen_mode.w = window->w;
slouken@3500
  1031
    }
slouken@3500
  1032
    if (!fullscreen_mode.h) {
slouken@3500
  1033
        fullscreen_mode.h = window->h;
slouken@3500
  1034
    }
slouken@7191
  1035
slouken@7191
  1036
    display = SDL_GetDisplayForWindow(window);
slouken@7191
  1037
slouken@7191
  1038
    /* if in desktop size mode, just return the size of the desktop */
slouken@7191
  1039
    if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) == SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1040
    {
slouken@7191
  1041
        fullscreen_mode = display->desktop_mode;
slouken@7191
  1042
    }
slouken@7191
  1043
    else if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@3500
  1044
                                             &fullscreen_mode,
slouken@3500
  1045
                                             &fullscreen_mode)) {
icculus@7037
  1046
        return SDL_SetError("Couldn't find display mode match");
slouken@3500
  1047
    }
slouken@3500
  1048
slouken@3500
  1049
    if (mode) {
slouken@3500
  1050
        *mode = fullscreen_mode;
slouken@2753
  1051
    }
slouken@2753
  1052
    return 0;
slouken@0
  1053
}
slouken@0
  1054
slouken@5154
  1055
Uint32
slouken@5154
  1056
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@5154
  1057
{
slouken@5246
  1058
    SDL_VideoDisplay *display;
slouken@5246
  1059
slouken@5246
  1060
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@5246
  1061
slouken@5246
  1062
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  1063
    return display->current_mode.format;
slouken@5154
  1064
}
slouken@5154
  1065
slouken@3502
  1066
static void
slouken@5479
  1067
SDL_RestoreMousePosition(SDL_Window *window)
slouken@5479
  1068
{
slouken@5479
  1069
    int x, y;
slouken@5479
  1070
slouken@5479
  1071
    if (window == SDL_GetMouseFocus()) {
slouken@5479
  1072
        SDL_GetMouseState(&x, &y);
slouken@5479
  1073
        SDL_WarpMouseInWindow(window, x, y);
slouken@5479
  1074
    }
slouken@5479
  1075
}
slouken@5479
  1076
slouken@5479
  1077
static void
slouken@5404
  1078
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@3502
  1079
{
slouken@5246
  1080
    SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5249
  1081
    SDL_Window *other;
slouken@3502
  1082
slouken@5404
  1083
    if (fullscreen) {
slouken@3502
  1084
        /* Hide any other fullscreen windows */
slouken@5249
  1085
        if (display->fullscreen_window &&
slouken@5249
  1086
            display->fullscreen_window != window) {
slouken@5246
  1087
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@3502
  1088
        }
slouken@3502
  1089
    }
slouken@3502
  1090
slouken@5305
  1091
    /* See if anything needs to be done now */
slouken@5404
  1092
    if ((display->fullscreen_window == window) == fullscreen) {
slouken@5305
  1093
        return;
slouken@5305
  1094
    }
slouken@5305
  1095
slouken@5249
  1096
    /* See if there are any fullscreen windows */
slouken@5249
  1097
    for (other = _this->windows; other; other = other->next) {
slouken@5404
  1098
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@5404
  1099
slouken@5404
  1100
        if (other == window) {
slouken@5404
  1101
            setDisplayMode = fullscreen;
slouken@5404
  1102
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@5404
  1103
                   SDL_GetDisplayForWindow(other) == display) {
slouken@5404
  1104
            setDisplayMode = SDL_TRUE;
slouken@5404
  1105
        }
slouken@5404
  1106
slouken@5404
  1107
        if (setDisplayMode) {
slouken@5249
  1108
            SDL_DisplayMode fullscreen_mode;
slouken@5404
  1109
slouken@5249
  1110
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@5306
  1111
                SDL_bool resized = SDL_TRUE;
slouken@5306
  1112
slouken@5306
  1113
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@5306
  1114
                    resized = SDL_FALSE;
slouken@5249
  1115
                }
slouken@3502
  1116
slouken@7191
  1117
                /* only do the mode change if we want exclusive fullscreen */
slouken@7191
  1118
                if ( ( window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP ) != SDL_WINDOW_FULLSCREEN_DESKTOP )
slouken@7191
  1119
                    SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@7191
  1120
                else
slouken@7191
  1121
                    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@7191
  1122
slouken@7191
  1123
slouken@5249
  1124
                if (_this->SetWindowFullscreen) {
slouken@5305
  1125
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@5249
  1126
                }
slouken@5249
  1127
                display->fullscreen_window = other;
slouken@5249
  1128
slouken@5306
  1129
                /* Generate a mode change event here */
slouken@5306
  1130
                if (resized) {
slouken@5306
  1131
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@5306
  1132
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@5306
  1133
                } else {
slouken@5306
  1134
                    SDL_OnWindowResized(other);
slouken@5306
  1135
                }
slouken@5479
  1136
slouken@5479
  1137
                SDL_RestoreMousePosition(other);
slouken@3502
  1138
                return;
slouken@3502
  1139
            }
slouken@3502
  1140
        }
slouken@3502
  1141
    }
slouken@3502
  1142
slouken@3502
  1143
    /* Nope, restore the desktop mode */
slouken@3502
  1144
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@5249
  1145
slouken@5249
  1146
    if (_this->SetWindowFullscreen) {
slouken@5305
  1147
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@5249
  1148
    }
slouken@3517
  1149
    display->fullscreen_window = NULL;
slouken@5306
  1150
slouken@5306
  1151
    /* Generate a mode change event here */
slouken@5306
  1152
    SDL_OnWindowResized(window);
slouken@5479
  1153
slouken@5479
  1154
    /* Restore the cursor position */
slouken@5479
  1155
    SDL_RestoreMousePosition(window);
slouken@3502
  1156
}
slouken@3502
  1157
slouken@5380
  1158
#define CREATE_FLAGS \
slouken@5380
  1159
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE)
slouken@5380
  1160
slouken@5380
  1161
static void
slouken@5380
  1162
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@5380
  1163
{
slouken@5398
  1164
    window->windowed.x = window->x;
slouken@5398
  1165
    window->windowed.y = window->y;
slouken@5398
  1166
    window->windowed.w = window->w;
slouken@5398
  1167
    window->windowed.h = window->h;
slouken@5398
  1168
slouken@5380
  1169
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@5380
  1170
        SDL_MaximizeWindow(window);
slouken@5380
  1171
    }
slouken@5380
  1172
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@5380
  1173
        SDL_MinimizeWindow(window);
slouken@5380
  1174
    }
slouken@5380
  1175
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@6755
  1176
        SDL_SetWindowFullscreen(window, flags);
slouken@5380
  1177
    }
slouken@5380
  1178
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@5380
  1179
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@5380
  1180
    }
slouken@5380
  1181
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@5380
  1182
        SDL_ShowWindow(window);
slouken@5380
  1183
    }
slouken@5380
  1184
}
slouken@5380
  1185
slouken@3685
  1186
SDL_Window *
slouken@1895
  1187
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@0
  1188
{
slouken@3685
  1189
    SDL_Window *window;
urkle@7746
  1190
    const char *hint;
slouken@0
  1191
slouken@2753
  1192
    if (!_this) {
slouken@3417
  1193
        /* Initialize the video system if needed */
slouken@5123
  1194
        if (SDL_VideoInit(NULL) < 0) {
slouken@3685
  1195
            return NULL;
slouken@3417
  1196
        }
slouken@2753
  1197
    }
slouken@5249
  1198
slouken@6266
  1199
    /* Some platforms can't create zero-sized windows */
slouken@6266
  1200
    if (w < 1) {
slouken@6266
  1201
        w = 1;
slouken@6266
  1202
    }
slouken@6266
  1203
    if (h < 1) {
slouken@6266
  1204
        h = 1;
slouken@6266
  1205
    }
slouken@6266
  1206
slouken@5249
  1207
    /* Some platforms have OpenGL enabled by default */
slouken@6188
  1208
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__
slouken@5249
  1209
    flags |= SDL_WINDOW_OPENGL;
slouken@5249
  1210
#endif
slouken@3057
  1211
    if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1212
        if (!_this->GL_CreateContext) {
slouken@3057
  1213
            SDL_SetError("No OpenGL support in video driver");
slouken@3685
  1214
            return NULL;
slouken@3057
  1215
        }
slouken@6611
  1216
        if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6611
  1217
            return NULL;
slouken@6611
  1218
        }
slouken@2753
  1219
    }
slouken@3685
  1220
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@7399
  1221
    if (!window) {
slouken@7399
  1222
        SDL_OutOfMemory();
slouken@7399
  1223
        return NULL;
slouken@7399
  1224
    }
slouken@3695
  1225
    window->magic = &_this->window_magic;
slouken@3685
  1226
    window->id = _this->next_object_id++;
slouken@3685
  1227
    window->x = x;
slouken@3685
  1228
    window->y = y;
slouken@3685
  1229
    window->w = w;
slouken@3685
  1230
    window->h = h;
slouken@5380
  1231
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@5380
  1232
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1233
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@5380
  1234
        int displayIndex;
slouken@5380
  1235
        SDL_Rect bounds;
slouken@5380
  1236
slouken@5380
  1237
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@5380
  1238
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@5404
  1239
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@5380
  1240
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@5380
  1241
        }
slouken@5380
  1242
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@5380
  1243
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@5380
  1244
        }
slouken@5380
  1245
    }
slouken@5380
  1246
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@5466
  1247
    window->brightness = 1.0f;
slouken@5246
  1248
    window->next = _this->windows;
urkle@7746
  1249
urkle@7746
  1250
    /* Unless the user has specified the high-DPI disabling hint, respect the
urkle@7746
  1251
     * SDL_WINDOW_ALLOW_HIGHDPI flag.
urkle@7746
  1252
     */
urkle@7746
  1253
    hint = SDL_GetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED);
urkle@7746
  1254
    if (!hint || *hint != '1') {
urkle@7746
  1255
        if ((flags & SDL_WINDOW_ALLOW_HIGHDPI)) {
urkle@7746
  1256
            window->flags |= SDL_WINDOW_ALLOW_HIGHDPI;
urkle@7746
  1257
        }
urkle@7746
  1258
    }
urkle@7746
  1259
slouken@5246
  1260
    if (_this->windows) {
slouken@5246
  1261
        _this->windows->prev = window;
slouken@3693
  1262
    }
slouken@5246
  1263
    _this->windows = window;
slouken@3685
  1264
slouken@3685
  1265
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@3685
  1266
        SDL_DestroyWindow(window);
slouken@3685
  1267
        return NULL;
slouken@3685
  1268
    }
slouken@0
  1269
slouken@2753
  1270
    if (title) {
slouken@3685
  1271
        SDL_SetWindowTitle(window, title);
slouken@2753
  1272
    }
slouken@5380
  1273
    SDL_FinishWindowCreation(window, flags);
slouken@7191
  1274
slouken@6063
  1275
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@6063
  1276
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@3685
  1277
slouken@3685
  1278
    return window;
slouken@1895
  1279
}
slouken@0
  1280
slouken@3685
  1281
SDL_Window *
slouken@1895
  1282
SDL_CreateWindowFrom(const void *data)
slouken@1895
  1283
{
slouken@3685
  1284
    SDL_Window *window;
slouken@0
  1285
slouken@2753
  1286
    if (!_this) {
slouken@2753
  1287
        SDL_UninitializedVideo();
slouken@3685
  1288
        return NULL;
slouken@3685
  1289
    }
slouken@3685
  1290
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@7399
  1291
    if (!window) {
slouken@7399
  1292
        SDL_OutOfMemory();
slouken@7399
  1293
        return NULL;
slouken@7399
  1294
    }
slouken@3695
  1295
    window->magic = &_this->window_magic;
slouken@3685
  1296
    window->id = _this->next_object_id++;
slouken@3685
  1297
    window->flags = SDL_WINDOW_FOREIGN;
slouken@5466
  1298
    window->brightness = 1.0f;
slouken@5246
  1299
    window->next = _this->windows;
slouken@5246
  1300
    if (_this->windows) {
slouken@5246
  1301
        _this->windows->prev = window;
slouken@3693
  1302
    }
slouken@5246
  1303
    _this->windows = window;
slouken@1895
  1304
slouken@2753
  1305
    if (!_this->CreateWindowFrom ||
slouken@3685
  1306
        _this->CreateWindowFrom(_this, window, data) < 0) {
slouken@3685
  1307
        SDL_DestroyWindow(window);
slouken@3685
  1308
        return NULL;
slouken@3685
  1309
    }
slouken@3685
  1310
    return window;
slouken@1895
  1311
}
slouken@1895
  1312
slouken@1924
  1313
int
slouken@1928
  1314
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@1924
  1315
{
slouken@2753
  1316
    char *title = window->title;
slouken@7523
  1317
    SDL_Surface *icon = window->icon;
slouken@1956
  1318
slouken@2753
  1319
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
icculus@7037
  1320
        return SDL_SetError("No OpenGL support in video driver");
slouken@2753
  1321
    }
slouken@3057
  1322
slouken@3057
  1323
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@3057
  1324
        /* Can't destroy and re-create foreign windows, hrm */
slouken@3057
  1325
        flags |= SDL_WINDOW_FOREIGN;
slouken@3057
  1326
    } else {
slouken@3057
  1327
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@3057
  1328
    }
slouken@3057
  1329
slouken@5249
  1330
    /* Restore video mode, etc. */
slouken@5305
  1331
    SDL_HideWindow(window);
slouken@5249
  1332
slouken@5249
  1333
    /* Tear down the old native window */
slouken@5249
  1334
    if (window->surface) {
slouken@5288
  1335
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5249
  1336
        SDL_FreeSurface(window->surface);
slouken@5249
  1337
    }
slouken@5249
  1338
    if (_this->DestroyWindowFramebuffer) {
slouken@5249
  1339
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5249
  1340
    }
slouken@3057
  1341
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@2753
  1342
        _this->DestroyWindow(_this, window);
slouken@2753
  1343
    }
slouken@3057
  1344
slouken@5249
  1345
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@5249
  1346
        if (flags & SDL_WINDOW_OPENGL) {
slouken@6775
  1347
            if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@6775
  1348
                return -1;
slouken@6775
  1349
            }
slouken@5249
  1350
        } else {
slouken@5249
  1351
            SDL_GL_UnloadLibrary();
slouken@5249
  1352
        }
slouken@5249
  1353
    }
slouken@5249
  1354
slouken@2753
  1355
    window->title = NULL;
slouken@7523
  1356
    window->icon = NULL;
slouken@5380
  1357
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
slouken@1956
  1358
slouken@3057
  1359
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@3057
  1360
        if (_this->CreateWindow(_this, window) < 0) {
slouken@3057
  1361
            if (flags & SDL_WINDOW_OPENGL) {
slouken@3057
  1362
                SDL_GL_UnloadLibrary();
slouken@3057
  1363
            }
slouken@3057
  1364
            return -1;
slouken@3057
  1365
        }
slouken@2753
  1366
    }
slouken@3057
  1367
slouken@2753
  1368
    if (title) {
slouken@3685
  1369
        SDL_SetWindowTitle(window, title);
slouken@2753
  1370
        SDL_free(title);
slouken@2753
  1371
    }
slouken@7523
  1372
    if (icon) {
slouken@7523
  1373
        SDL_SetWindowIcon(window, icon);
slouken@7523
  1374
        SDL_FreeSurface(icon);
slouken@7523
  1375
    }
slouken@5380
  1376
    SDL_FinishWindowCreation(window, flags);
slouken@2875
  1377
slouken@2753
  1378
    return 0;
slouken@1924
  1379
}
slouken@1924
  1380
slouken@1895
  1381
Uint32
slouken@3685
  1382
SDL_GetWindowID(SDL_Window * window)
slouken@1895
  1383
{
slouken@3695
  1384
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1385
slouken@3685
  1386
    return window->id;
slouken@3685
  1387
}
slouken@3685
  1388
slouken@3685
  1389
SDL_Window *
slouken@3685
  1390
SDL_GetWindowFromID(Uint32 id)
slouken@3685
  1391
{
slouken@3685
  1392
    SDL_Window *window;
slouken@3685
  1393
slouken@3685
  1394
    if (!_this) {
slouken@3685
  1395
        return NULL;
slouken@3685
  1396
    }
slouken@5246
  1397
    for (window = _this->windows; window; window = window->next) {
slouken@5246
  1398
        if (window->id == id) {
slouken@5246
  1399
            return window;
slouken@3685
  1400
        }
slouken@3685
  1401
    }
slouken@3685
  1402
    return NULL;
slouken@3685
  1403
}
slouken@3685
  1404
slouken@3685
  1405
Uint32
slouken@3685
  1406
SDL_GetWindowFlags(SDL_Window * window)
slouken@3685
  1407
{
slouken@3695
  1408
    CHECK_WINDOW_MAGIC(window, 0);
slouken@3695
  1409
slouken@2753
  1410
    return window->flags;
slouken@1895
  1411
}
slouken@1895
  1412
slouken@1895
  1413
void
slouken@3685
  1414
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@1895
  1415
{
slouken@3695
  1416
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1417
slouken@3695
  1418
    if (title == window->title) {
slouken@2753
  1419
        return;
slouken@2753
  1420
    }
slouken@7719
  1421
    SDL_free(window->title);
slouken@4871
  1422
    if (title && *title) {
slouken@2753
  1423
        window->title = SDL_strdup(title);
slouken@2753
  1424
    } else {
slouken@2753
  1425
        window->title = NULL;
slouken@2753
  1426
    }
slouken@1956
  1427
slouken@2753
  1428
    if (_this->SetWindowTitle) {
slouken@2753
  1429
        _this->SetWindowTitle(_this, window);
slouken@2753
  1430
    }
slouken@1895
  1431
}
slouken@1895
  1432
slouken@2753
  1433
const char *
slouken@3685
  1434
SDL_GetWindowTitle(SDL_Window * window)
slouken@1895
  1435
{
slouken@4872
  1436
    CHECK_WINDOW_MAGIC(window, "");
slouken@3695
  1437
slouken@4871
  1438
    return window->title ? window->title : "";
slouken@1895
  1439
}
slouken@1895
  1440
slouken@1895
  1441
void
slouken@3685
  1442
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@2967
  1443
{
slouken@3695
  1444
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1445
slouken@5375
  1446
    if (!icon) {
slouken@5375
  1447
        return;
slouken@5375
  1448
    }
slouken@5375
  1449
slouken@7720
  1450
    SDL_FreeSurface(window->icon);
slouken@7523
  1451
slouken@7523
  1452
    /* Convert the icon into ARGB8888 */
slouken@7523
  1453
    window->icon = SDL_ConvertSurfaceFormat(icon, SDL_PIXELFORMAT_ARGB8888, 0);
slouken@7523
  1454
    if (!window->icon) {
slouken@7523
  1455
        return;
slouken@7523
  1456
    }
slouken@7523
  1457
slouken@2967
  1458
    if (_this->SetWindowIcon) {
slouken@7523
  1459
        _this->SetWindowIcon(_this, window, window->icon);
slouken@2967
  1460
    }
slouken@2967
  1461
}
slouken@2967
  1462
slouken@5165
  1463
void*
slouken@5165
  1464
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@1895
  1465
{
slouken@5165
  1466
    SDL_WindowUserData *prev, *data;
slouken@3695
  1467
slouken@5165
  1468
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@7191
  1469
aschiffler@7046
  1470
    /* Input validation */
slouken@7721
  1471
    if (name == NULL || name[0] == '\0') {
aschiffler@7046
  1472
      SDL_InvalidParamError("name");
aschiffler@7046
  1473
      return NULL;
aschiffler@7046
  1474
    }
slouken@5165
  1475
slouken@5165
  1476
    /* See if the named data already exists */
slouken@5165
  1477
    prev = NULL;
slouken@5165
  1478
    for (data = window->data; data; prev = data, data = data->next) {
aschiffler@7046
  1479
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1480
            void *last_value = data->data;
slouken@5165
  1481
slouken@5165
  1482
            if (userdata) {
slouken@5165
  1483
                /* Set the new value */
slouken@5165
  1484
                data->data = userdata;
slouken@5165
  1485
            } else {
slouken@5165
  1486
                /* Delete this value */
slouken@5165
  1487
                if (prev) {
slouken@5165
  1488
                    prev->next = data->next;
slouken@5165
  1489
                } else {
slouken@5165
  1490
                    window->data = data->next;
slouken@5165
  1491
                }
slouken@5165
  1492
                SDL_free(data->name);
slouken@5165
  1493
                SDL_free(data);
slouken@5165
  1494
            }
slouken@5165
  1495
            return last_value;
slouken@5165
  1496
        }
slouken@5165
  1497
    }
slouken@5165
  1498
slouken@5165
  1499
    /* Add new data to the window */
slouken@5165
  1500
    if (userdata) {
slouken@5165
  1501
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@5165
  1502
        data->name = SDL_strdup(name);
slouken@5165
  1503
        data->data = userdata;
slouken@5165
  1504
        data->next = window->data;
slouken@5165
  1505
        window->data = data;
slouken@5165
  1506
    }
slouken@5165
  1507
    return NULL;
slouken@1895
  1508
}
slouken@1895
  1509
slouken@2753
  1510
void *
slouken@5165
  1511
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@1895
  1512
{
slouken@5165
  1513
    SDL_WindowUserData *data;
slouken@5165
  1514
slouken@3695
  1515
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@3695
  1516
aschiffler@7046
  1517
    /* Input validation */
slouken@7721
  1518
    if (name == NULL || name[0] == '\0') {
aschiffler@7046
  1519
      SDL_InvalidParamError("name");
aschiffler@7046
  1520
      return NULL;
aschiffler@7046
  1521
    }
aschiffler@7046
  1522
slouken@5165
  1523
    for (data = window->data; data; data = data->next) {
aschiffler@7046
  1524
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@5165
  1525
            return data->data;
slouken@5165
  1526
        }
slouken@5165
  1527
    }
slouken@5165
  1528
    return NULL;
slouken@1895
  1529
}
slouken@1895
  1530
slouken@1895
  1531
void
slouken@3685
  1532
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@1895
  1533
{
slouken@3695
  1534
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1535
slouken@7195
  1536
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1537
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@7195
  1538
        int displayIndex;
slouken@7195
  1539
        SDL_Rect bounds;
slouken@7195
  1540
slouken@7195
  1541
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@7195
  1542
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@7195
  1543
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@7195
  1544
            x = bounds.x + (bounds.w - window->w) / 2;
slouken@7195
  1545
        }
slouken@7195
  1546
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@7195
  1547
            y = bounds.y + (bounds.h - window->h) / 2;
slouken@7195
  1548
        }
slouken@7195
  1549
    }
slouken@7195
  1550
slouken@5305
  1551
    if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@2753
  1552
        window->x = x;
slouken@2753
  1553
    }
slouken@5305
  1554
    if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@2753
  1555
        window->y = y;
slouken@2753
  1556
    }
slouken@7195
  1557
slouken@5246
  1558
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5246
  1559
        if (_this->SetWindowPosition) {
slouken@5246
  1560
            _this->SetWindowPosition(_this, window);
slouken@5246
  1561
        }
slouken@5246
  1562
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@2753
  1563
    }
slouken@1895
  1564
}
slouken@1895
  1565
slouken@1895
  1566
void
slouken@3685
  1567
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@1895
  1568
{
slouken@5246
  1569
    CHECK_WINDOW_MAGIC(window, );
slouken@5246
  1570
slouken@5246
  1571
    /* Fullscreen windows are always at their display's origin */
slouken@5246
  1572
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
aschiffler@6956
  1573
        if (x) {
aschiffler@6956
  1574
            *x = 0;
aschiffler@6956
  1575
        }
aschiffler@6956
  1576
        if (y) {
aschiffler@6956
  1577
            *y = 0;
aschiffler@6956
  1578
        }
slouken@5246
  1579
    } else {
slouken@5242
  1580
        if (x) {
slouken@5242
  1581
            *x = window->x;
slouken@5242
  1582
        }
slouken@5242
  1583
        if (y) {
slouken@5242
  1584
            *y = window->y;
slouken@5242
  1585
        }
slouken@2753
  1586
    }
slouken@1895
  1587
}
slouken@1895
  1588
slouken@1895
  1589
void
icculus@6422
  1590
SDL_SetWindowBordered(SDL_Window * window, SDL_bool bordered)
icculus@6422
  1591
{
icculus@6422
  1592
    CHECK_WINDOW_MAGIC(window, );
icculus@6422
  1593
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
icculus@6422
  1594
        const int want = (bordered != SDL_FALSE);  /* normalize the flag. */
icculus@6422
  1595
        const int have = ((window->flags & SDL_WINDOW_BORDERLESS) == 0);
icculus@6422
  1596
        if ((want != have) && (_this->SetWindowBordered)) {
icculus@6422
  1597
            if (want) {
icculus@6422
  1598
                window->flags &= ~SDL_WINDOW_BORDERLESS;
icculus@6422
  1599
            } else {
icculus@6422
  1600
                window->flags |= SDL_WINDOW_BORDERLESS;
icculus@6422
  1601
            }
icculus@6422
  1602
            _this->SetWindowBordered(_this, window, (SDL_bool) want);
icculus@6422
  1603
        }
icculus@6422
  1604
    }
icculus@6422
  1605
}
icculus@6422
  1606
icculus@6422
  1607
void
slouken@3685
  1608
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@1895
  1609
{
slouken@3695
  1610
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1611
    if (w <= 0) {
aschiffler@6984
  1612
        SDL_InvalidParamError("w");
aschiffler@6984
  1613
        return;
aschiffler@6984
  1614
    }
aschiffler@6984
  1615
    if (h <= 0) {
aschiffler@6984
  1616
        SDL_InvalidParamError("h");
aschiffler@6984
  1617
        return;
aschiffler@6984
  1618
    }
slouken@3695
  1619
slouken@5249
  1620
    /* FIXME: Should this change fullscreen modes? */
slouken@5249
  1621
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@5276
  1622
        window->w = w;
slouken@5276
  1623
        window->h = h;
slouken@5249
  1624
        if (_this->SetWindowSize) {
slouken@5249
  1625
            _this->SetWindowSize(_this, window);
slouken@5249
  1626
        }
slouken@5276
  1627
        if (window->w == w && window->h == h) {
slouken@5276
  1628
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@5276
  1629
            SDL_OnWindowResized(window);
slouken@5276
  1630
        }
slouken@2753
  1631
    }
slouken@1895
  1632
}
slouken@1895
  1633
slouken@1895
  1634
void
slouken@3685
  1635
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@1895
  1636
{
aschiffler@6984
  1637
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1638
    if (w) {
aschiffler@6984
  1639
        *w = window->w;
slouken@5246
  1640
    }
aschiffler@6984
  1641
    if (h) {
stopiccot@6681
  1642
        *h = window->h;
slouken@7191
  1643
    }
stopiccot@6681
  1644
}
stopiccot@6681
  1645
stopiccot@6681
  1646
void
stopiccot@6681
  1647
SDL_SetWindowMinimumSize(SDL_Window * window, int min_w, int min_h)
stopiccot@6681
  1648
{
stopiccot@6681
  1649
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1650
    if (min_w <= 0) {
aschiffler@6984
  1651
        SDL_InvalidParamError("min_w");
aschiffler@6984
  1652
        return;
aschiffler@6984
  1653
    }
aschiffler@6984
  1654
    if (min_h <= 0) {
aschiffler@6984
  1655
        SDL_InvalidParamError("min_h");
aschiffler@6984
  1656
        return;
aschiffler@6984
  1657
    }
slouken@7191
  1658
stopiccot@6681
  1659
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
stopiccot@6681
  1660
        window->min_w = min_w;
stopiccot@6681
  1661
        window->min_h = min_h;
stopiccot@6681
  1662
        if (_this->SetWindowMinimumSize) {
stopiccot@6681
  1663
            _this->SetWindowMinimumSize(_this, window);
slouken@2849
  1664
        }
stopiccot@6681
  1665
        /* Ensure that window is not smaller than minimal size */
stopiccot@6681
  1666
        SDL_SetWindowSize(window, SDL_max(window->w, window->min_w), SDL_max(window->h, window->min_h));
stopiccot@6681
  1667
    }
stopiccot@6681
  1668
}
stopiccot@6681
  1669
stopiccot@6681
  1670
void
stopiccot@6681
  1671
SDL_GetWindowMinimumSize(SDL_Window * window, int *min_w, int *min_h)
stopiccot@6681
  1672
{
aschiffler@6984
  1673
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1674
    if (min_w) {
aschiffler@6984
  1675
        *min_w = window->min_w;
stopiccot@6681
  1676
    }
aschiffler@6984
  1677
    if (min_h) {
stopiccot@6681
  1678
        *min_h = window->min_h;
slouken@2753
  1679
    }
slouken@1895
  1680
}
slouken@1895
  1681
slouken@1895
  1682
void
slouken@6788
  1683
SDL_SetWindowMaximumSize(SDL_Window * window, int max_w, int max_h)
slouken@6788
  1684
{
slouken@6788
  1685
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1686
    if (max_w <= 0) {
aschiffler@6984
  1687
        SDL_InvalidParamError("max_w");
aschiffler@6984
  1688
        return;
aschiffler@6984
  1689
    }
aschiffler@6984
  1690
    if (max_h <= 0) {
aschiffler@6984
  1691
        SDL_InvalidParamError("max_h");
aschiffler@6984
  1692
        return;
aschiffler@6984
  1693
    }
slouken@7191
  1694
slouken@6788
  1695
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@6788
  1696
        window->max_w = max_w;
slouken@6788
  1697
        window->max_h = max_h;
slouken@6788
  1698
        if (_this->SetWindowMaximumSize) {
slouken@6788
  1699
            _this->SetWindowMaximumSize(_this, window);
slouken@6788
  1700
        }
slouken@6788
  1701
        /* Ensure that window is not larger than maximal size */
slouken@6788
  1702
        SDL_SetWindowSize(window, SDL_min(window->w, window->max_w), SDL_min(window->h, window->max_h));
slouken@6788
  1703
    }
slouken@6788
  1704
}
slouken@6788
  1705
slouken@6788
  1706
void
slouken@6788
  1707
SDL_GetWindowMaximumSize(SDL_Window * window, int *max_w, int *max_h)
slouken@6788
  1708
{
aschiffler@6984
  1709
    CHECK_WINDOW_MAGIC(window, );
aschiffler@6984
  1710
    if (max_w) {
aschiffler@6984
  1711
        *max_w = window->max_w;
slouken@6788
  1712
    }
aschiffler@6984
  1713
    if (max_h) {
slouken@6788
  1714
        *max_h = window->max_h;
slouken@6788
  1715
    }
slouken@6788
  1716
}
slouken@6788
  1717
slouken@6788
  1718
void
slouken@3685
  1719
SDL_ShowWindow(SDL_Window * window)
slouken@1895
  1720
{
slouken@3695
  1721
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1722
slouken@3695
  1723
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@2753
  1724
        return;
slouken@2753
  1725
    }
slouken@1895
  1726
slouken@2753
  1727
    if (_this->ShowWindow) {
slouken@2753
  1728
        _this->ShowWindow(_this, window);
slouken@2753
  1729
    }
slouken@3685
  1730
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@1895
  1731
}
slouken@1895
  1732
slouken@1895
  1733
void
slouken@3685
  1734
SDL_HideWindow(SDL_Window * window)
slouken@1895
  1735
{
slouken@3695
  1736
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1737
slouken@3695
  1738
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1739
        return;
slouken@2753
  1740
    }
slouken@1895
  1741
slouken@5404
  1742
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1743
slouken@2753
  1744
    if (_this->HideWindow) {
slouken@2753
  1745
        _this->HideWindow(_this, window);
slouken@2753
  1746
    }
slouken@3685
  1747
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@1895
  1748
}
slouken@1895
  1749
slouken@1895
  1750
void
slouken@3685
  1751
SDL_RaiseWindow(SDL_Window * window)
slouken@1895
  1752
{
slouken@3695
  1753
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1754
slouken@3695
  1755
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@2753
  1756
        return;
slouken@2753
  1757
    }
slouken@2753
  1758
    if (_this->RaiseWindow) {
slouken@2753
  1759
        _this->RaiseWindow(_this, window);
slouken@2753
  1760
    }
slouken@1895
  1761
}
slouken@1895
  1762
slouken@1895
  1763
void
slouken@3685
  1764
SDL_MaximizeWindow(SDL_Window * window)
slouken@1895
  1765
{
slouken@3695
  1766
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1767
slouken@3695
  1768
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@2753
  1769
        return;
slouken@2753
  1770
    }
slouken@1895
  1771
gabomdq@7662
  1772
    /* !!! FIXME: should this check if the window is resizable? */
icculus@7566
  1773
slouken@2753
  1774
    if (_this->MaximizeWindow) {
slouken@2753
  1775
        _this->MaximizeWindow(_this, window);
slouken@2753
  1776
    }
slouken@1895
  1777
}
slouken@1895
  1778
slouken@1895
  1779
void
slouken@3685
  1780
SDL_MinimizeWindow(SDL_Window * window)
slouken@1895
  1781
{
slouken@3695
  1782
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1783
slouken@3695
  1784
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@2753
  1785
        return;
slouken@2753
  1786
    }
slouken@1895
  1787
slouken@5404
  1788
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@5404
  1789
slouken@2753
  1790
    if (_this->MinimizeWindow) {
slouken@2753
  1791
        _this->MinimizeWindow(_this, window);
slouken@2753
  1792
    }
slouken@1895
  1793
}
slouken@1895
  1794
slouken@1895
  1795
void
slouken@3685
  1796
SDL_RestoreWindow(SDL_Window * window)
slouken@1895
  1797
{
slouken@3695
  1798
    CHECK_WINDOW_MAGIC(window, );
slouken@3695
  1799
slouken@3695
  1800
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@2753
  1801
        return;
slouken@2753
  1802
    }
slouken@1895
  1803
slouken@2753
  1804
    if (_this->RestoreWindow) {
slouken@2753
  1805
        _this->RestoreWindow(_this, window);
slouken@2753
  1806
    }
slouken@1895
  1807
}
slouken@1895
  1808
slouken@6755
  1809
#define FULLSCREEN_MASK ( SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN )
slouken@1895
  1810
int
slouken@6755
  1811
SDL_SetWindowFullscreen(SDL_Window * window, Uint32 flags)
slouken@1895
  1812
{
slouken@3695
  1813
    CHECK_WINDOW_MAGIC(window, -1);
slouken@3695
  1814
slouken@7191
  1815
    flags &= FULLSCREEN_MASK;
slouken@7191
  1816
slouken@6755
  1817
    if ( flags == (window->flags & FULLSCREEN_MASK) ) {
slouken@2753
  1818
        return 0;
slouken@2753
  1819
    }
slouken@7191
  1820
slouken@7191
  1821
    /* clear the previous flags and OR in the new ones */
slouken@7191
  1822
    window->flags &= ~FULLSCREEN_MASK;
slouken@6755
  1823
    window->flags |= flags;
slouken@6755
  1824
slouken@5404
  1825
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@1895
  1826
slouken@2753
  1827
    return 0;
slouken@1895
  1828
}
slouken@1895
  1829
slouken@5166
  1830
static SDL_Surface *
slouken@5166
  1831
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@5166
  1832
{
slouken@5166
  1833
    Uint32 format;
slouken@5166
  1834
    void *pixels;
slouken@5166
  1835
    int pitch;
slouken@5166
  1836
    int bpp;
slouken@5166
  1837
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@5166
  1838
slouken@5166
  1839
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@5166
  1840
        return NULL;
slouken@5166
  1841
    }
slouken@5166
  1842
slouken@5166
  1843
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@5166
  1844
        return NULL;
slouken@5166
  1845
    }
slouken@5166
  1846
slouken@5166
  1847
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@5166
  1848
        return NULL;
slouken@5166
  1849
    }
slouken@5166
  1850
slouken@5166
  1851
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@5166
  1852
}
slouken@5166
  1853
slouken@5166
  1854
SDL_Surface *
slouken@5166
  1855
SDL_GetWindowSurface(SDL_Window * window)
slouken@5166
  1856
{
slouken@5166
  1857
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@5166
  1858
slouken@5172
  1859
    if (!window->surface_valid) {
slouken@5172
  1860
        if (window->surface) {
slouken@5288
  1861
            window->surface->flags &= ~SDL_DONTFREE;
slouken@5172
  1862
            SDL_FreeSurface(window->surface);
slouken@5172
  1863
        }
slouken@5166
  1864
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@5169
  1865
        if (window->surface) {
slouken@5172
  1866
            window->surface_valid = SDL_TRUE;
slouken@5288
  1867
            window->surface->flags |= SDL_DONTFREE;
slouken@5169
  1868
        }
slouken@5166
  1869
    }
slouken@5166
  1870
    return window->surface;
slouken@5166
  1871
}
slouken@5166
  1872
slouken@5166
  1873
int
slouken@5166
  1874
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@5166
  1875
{
slouken@5166
  1876
    SDL_Rect full_rect;
slouken@5166
  1877
slouken@5166
  1878
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1879
slouken@5166
  1880
    full_rect.x = 0;
slouken@5166
  1881
    full_rect.y = 0;
slouken@5166
  1882
    full_rect.w = window->w;
slouken@5166
  1883
    full_rect.h = window->h;
slouken@5297
  1884
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@5166
  1885
}
slouken@5166
  1886
slouken@5166
  1887
int
slouken@7014
  1888
SDL_UpdateWindowSurfaceRects(SDL_Window * window, const SDL_Rect * rects,
slouken@5297
  1889
                             int numrects)
slouken@5166
  1890
{
slouken@5166
  1891
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5166
  1892
slouken@5172
  1893
    if (!window->surface_valid) {
icculus@7037
  1894
        return SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@5166
  1895
    }
slouken@5166
  1896
slouken@5297
  1897
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@5166
  1898
}
slouken@5166
  1899
slouken@5466
  1900
int
slouken@5466
  1901
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@5466
  1902
{
slouken@5466
  1903
    Uint16 ramp[256];
slouken@5466
  1904
    int status;
slouken@5466
  1905
slouken@5466
  1906
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1907
slouken@5466
  1908
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@5466
  1909
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@5466
  1910
    if (status == 0) {
slouken@5466
  1911
        window->brightness = brightness;
slouken@5466
  1912
    }
slouken@5466
  1913
    return status;
slouken@5466
  1914
}
slouken@5466
  1915
slouken@5466
  1916
float
slouken@5466
  1917
SDL_GetWindowBrightness(SDL_Window * window)
slouken@5466
  1918
{
slouken@5466
  1919
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@5466
  1920
slouken@5466
  1921
    return window->brightness;
slouken@5466
  1922
}
slouken@5466
  1923
slouken@5466
  1924
int
slouken@5466
  1925
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@5466
  1926
                                            const Uint16 * green,
slouken@5466
  1927
                                            const Uint16 * blue)
slouken@5466
  1928
{
slouken@5466
  1929
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1930
slouken@5466
  1931
    if (!_this->SetWindowGammaRamp) {
icculus@7037
  1932
        return SDL_Unsupported();
slouken@5466
  1933
    }
slouken@5466
  1934
slouken@5466
  1935
    if (!window->gamma) {
slouken@5466
  1936
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@5466
  1937
            return -1;
slouken@5466
  1938
        }
slouken@5466
  1939
    }
slouken@5466
  1940
slouken@5466
  1941
    if (red) {
slouken@5466
  1942
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@5466
  1943
    }
slouken@5466
  1944
    if (green) {
slouken@5466
  1945
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@5466
  1946
    }
slouken@5466
  1947
    if (blue) {
slouken@5466
  1948
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@5466
  1949
    }
slouken@5466
  1950
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@5466
  1951
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  1952
    } else {
slouken@5466
  1953
        return 0;
slouken@5466
  1954
    }
slouken@5466
  1955
}
slouken@5466
  1956
slouken@5466
  1957
int
slouken@5466
  1958
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@5466
  1959
                                            Uint16 * green,
slouken@5466
  1960
                                            Uint16 * blue)
slouken@5466
  1961
{
slouken@5466
  1962
    CHECK_WINDOW_MAGIC(window, -1);
slouken@5466
  1963
slouken@5466
  1964
    if (!window->gamma) {
slouken@5466
  1965
        int i;
slouken@5466
  1966
slouken@5466
  1967
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@5466
  1968
        if (!window->gamma) {
icculus@7037
  1969
            return SDL_OutOfMemory();
slouken@5466
  1970
        }
slouken@5466
  1971
        window->saved_gamma = window->gamma + 3*256;
slouken@5466
  1972
slouken@5466
  1973
        if (_this->GetWindowGammaRamp) {
slouken@5466
  1974
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@5466
  1975
                return -1;
slouken@5466
  1976
            }
slouken@5466
  1977
        } else {
slouken@5466
  1978
            /* Create an identity gamma ramp */
slouken@5466
  1979
            for (i = 0; i < 256; ++i) {
slouken@5466
  1980
                Uint16 value = (Uint16)((i << 8) | i);
slouken@5466
  1981
slouken@5466
  1982
                window->gamma[0*256+i] = value;
slouken@5466
  1983
                window->gamma[1*256+i] = value;
slouken@5466
  1984
                window->gamma[2*256+i] = value;
slouken@5466
  1985
            }
slouken@5466
  1986
        }
slouken@5466
  1987
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@5466
  1988
    }
slouken@5466
  1989
slouken@5466
  1990
    if (red) {
slouken@5466
  1991
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@5466
  1992
    }
slouken@5466
  1993
    if (green) {
slouken@5466
  1994
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@5466
  1995
    }
slouken@5466
  1996
    if (blue) {
slouken@5466
  1997
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@5466
  1998
    }
slouken@5466
  1999
    return 0;
slouken@5466
  2000
}
slouken@5466
  2001
slouken@6662
  2002
void
slouken@2876
  2003
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@2875
  2004
{
slouken@6662
  2005
    if (_this->SetWindowGrab) {
slouken@6662
  2006
        SDL_bool grabbed;
slouken@6662
  2007
        if ((window->flags & SDL_WINDOW_INPUT_GRABBED) &&
slouken@6662
  2008
            (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@6662
  2009
            grabbed = SDL_TRUE;
slouken@6662
  2010
        } else {
slouken@6662
  2011
            grabbed = SDL_FALSE;
slouken@6662
  2012
        }
slouken@6662
  2013
        _this->SetWindowGrab(_this, window, grabbed);
slouken@2753
  2014
    }
slouken@1895
  2015
}
slouken@1895
  2016
slouken@5403
  2017
void
slouken@5403
  2018
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@5403
  2019
{
slouken@5403
  2020
    CHECK_WINDOW_MAGIC(window, );
slouken@5403
  2021
slouken@5404
  2022
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@5403
  2023
        return;
slouken@5403
  2024
    }
slouken@5403
  2025
    if (grabbed) {
slouken@5403
  2026
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  2027
    } else {
slouken@5403
  2028
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@5403
  2029
    }
slouken@5403
  2030
    SDL_UpdateWindowGrab(window);
slouken@5403
  2031
}
slouken@5403
  2032
slouken@5403
  2033
SDL_bool
slouken@3685
  2034
SDL_GetWindowGrab(SDL_Window * window)
slouken@1895
  2035
{
slouken@5466
  2036
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@3695
  2037
slouken@2753
  2038
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@1895
  2039
}
slouken@1895
  2040
slouken@1895
  2041
void
slouken@1895
  2042
SDL_OnWindowShown(SDL_Window * window)
slouken@1895
  2043
{
slouken@5404
  2044
    SDL_OnWindowRestored(window);
slouken@1895
  2045
}
slouken@1895
  2046
slouken@1895
  2047
void
slouken@1895
  2048
SDL_OnWindowHidden(SDL_Window * window)
slouken@1895
  2049
{
slouken@5404
  2050
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@1895
  2051
}
slouken@1895
  2052
slouken@1895
  2053
void
slouken@5166
  2054
SDL_OnWindowResized(SDL_Window * window)
slouken@5166
  2055
{
slouken@5172
  2056
    window->surface_valid = SDL_FALSE;
slouken@5276
  2057
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@5166
  2058
}
slouken@5166
  2059
slouken@5166
  2060
void
slouken@3502
  2061
SDL_OnWindowMinimized(SDL_Window * window)
slouken@3502
  2062
{
slouken@5404
  2063
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@3502
  2064
}
slouken@3502
  2065
slouken@3502
  2066
void
slouken@3502
  2067
SDL_OnWindowRestored(SDL_Window * window)
slouken@3502
  2068
{
slouken@3685
  2069
    SDL_RaiseWindow(window);
slouken@5404
  2070
slouken@5404
  2071
    if (FULLSCREEN_VISIBLE(window)) {
slouken@5404
  2072
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@5404
  2073
    }
slouken@3502
  2074
}
slouken@3502
  2075
slouken@3502
  2076
void
jorgen@7089
  2077
SDL_OnWindowEnter(SDL_Window * window)
jorgen@7089
  2078
{
jorgen@7089
  2079
    if (_this->OnWindowEnter) {
jorgen@7089
  2080
        _this->OnWindowEnter(_this, window);
jorgen@7089
  2081
    }
jorgen@7089
  2082
}
jorgen@7089
  2083
jorgen@7089
  2084
void
jorgen@7089
  2085
SDL_OnWindowLeave(SDL_Window * window)
jorgen@7089
  2086
{
jorgen@7089
  2087
}
jorgen@7089
  2088
jorgen@7089
  2089
void
slouken@1895
  2090
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@1895
  2091
{
jorgen@7107
  2092
    SDL_Mouse *mouse = SDL_GetMouse();
jorgen@7107
  2093
slouken@5466
  2094
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2095
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@5466
  2096
    }
slouken@5466
  2097
jorgen@7107
  2098
    if (mouse && mouse->relative_mode) {
jorgen@7107
  2099
        SDL_SetMouseFocus(window);
jorgen@7107
  2100
        SDL_WarpMouseInWindow(window, window->w/2, window->h/2);
jorgen@7107
  2101
    }
jorgen@7107
  2102
slouken@6662
  2103
    SDL_UpdateWindowGrab(window);
slouken@1895
  2104
}
slouken@1895
  2105
slouken@6755
  2106
static SDL_bool ShouldMinimizeOnFocusLoss()
slouken@6755
  2107
{
slouken@7191
  2108
    const char *hint = SDL_GetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS);
slouken@7191
  2109
    if (hint) {
slouken@7191
  2110
        if (*hint == '0') {
slouken@7191
  2111
            return SDL_FALSE;
slouken@7191
  2112
        } else {
slouken@7191
  2113
            return SDL_TRUE;
slouken@7191
  2114
        }
slouken@7191
  2115
    }
slouken@7191
  2116
    return SDL_TRUE;
slouken@6755
  2117
}
slouken@6755
  2118
slouken@1895
  2119
void
slouken@1895
  2120
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@1895
  2121
{
slouken@5466
  2122
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@5466
  2123
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@3512
  2124
    }
slouken@3512
  2125
slouken@6662
  2126
    SDL_UpdateWindowGrab(window);
slouken@5466
  2127
jorgen@7269
  2128
    /* If we're fullscreen and lose focus, minimize unless the hint tells us otherwise */
icculus@7565
  2129
    if ((window->flags & SDL_WINDOW_FULLSCREEN) && ShouldMinimizeOnFocusLoss()) {
icculus@7565
  2130
        SDL_MinimizeWindow(window);
slouken@5466
  2131
    }
slouken@1895
  2132
}
slouken@1895
  2133
slouken@3685
  2134
SDL_Window *
slouken@1895
  2135
SDL_GetFocusWindow(void)
slouken@1895
  2136
{
slouken@3685
  2137
    SDL_Window *window;
slouken@1895
  2138
slouken@2753
  2139
    if (!_this) {
slouken@3685
  2140
        return NULL;
slouken@3685
  2141
    }
slouken@5246
  2142
    for (window = _this->windows; window; window = window->next) {
slouken@2753
  2143
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@3685
  2144
            return window;
slouken@2753
  2145
        }
slouken@2753
  2146
    }
slouken@3685
  2147
    return NULL;
slouken@1895
  2148
}
slouken@1895
  2149
slouken@1895
  2150
void
slouken@3685
  2151
SDL_DestroyWindow(SDL_Window * window)
slouken@1895
  2152
{
slouken@3685
  2153
    SDL_VideoDisplay *display;
slouken@3685
  2154
slouken@3695
  2155
    CHECK_WINDOW_MAGIC(window, );
slouken@3503
  2156
slouken@6214
  2157
    /* Restore video mode, etc. */
slouken@6214
  2158
    SDL_HideWindow(window);
slouken@6214
  2159
slouken@6214
  2160
    /* Make sure this window no longer has focus */
slouken@6214
  2161
    if (SDL_GetKeyboardFocus() == window) {
slouken@6214
  2162
        SDL_SetKeyboardFocus(NULL);
slouken@6214
  2163
    }
slouken@6214
  2164
    if (SDL_GetMouseFocus() == window) {
slouken@6214
  2165
        SDL_SetMouseFocus(NULL);
slouken@6214
  2166
    }
slouken@6214
  2167
icculus@5563
  2168
    /* make no context current if this is the current context window. */
icculus@5563
  2169
    if (window->flags & SDL_WINDOW_OPENGL) {
icculus@5563
  2170
        if (_this->current_glwin == window) {
slouken@6496
  2171
            SDL_GL_MakeCurrent(window, NULL);
icculus@5563
  2172
        }
icculus@5563
  2173
    }
icculus@5563
  2174
slouken@5169
  2175
    if (window->surface) {
slouken@5288
  2176
        window->surface->flags &= ~SDL_DONTFREE;
slouken@5169
  2177
        SDL_FreeSurface(window->surface);
slouken@5169
  2178
    }
slouken@5166
  2179
    if (_this->DestroyWindowFramebuffer) {
slouken@5166
  2180
        _this->DestroyWindowFramebuffer(_this, window);
slouken@5166
  2181
    }
slouken@3685
  2182
    if (_this->DestroyWindow) {
slouken@3685
  2183
        _this->DestroyWindow(_this, window);
slouken@3685
  2184
    }
slouken@3685
  2185
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@3685
  2186
        SDL_GL_UnloadLibrary();
slouken@3685
  2187
    }
slouken@3685
  2188
slouken@5246
  2189
    display = SDL_GetDisplayForWindow(window);
slouken@5246
  2190
    if (display->fullscreen_window == window) {
slouken@5246
  2191
        display->fullscreen_window = NULL;
slouken@5246
  2192
    }
slouken@5246
  2193
slouken@4901
  2194
    /* Now invalidate magic */
slouken@4897
  2195
    window->magic = NULL;
slouken@4897
  2196
slouken@5165
  2197
    /* Free memory associated with the window */
slouken@7719
  2198
    SDL_free(window->title);
slouken@7720
  2199
    SDL_FreeSurface(window->icon);
slouken@7719
  2200
    SDL_free(window->gamma);
slouken@5165
  2201
    while (window->data) {
slouken@5165
  2202
        SDL_WindowUserData *data = window->data;
slouken@5165
  2203
slouken@5165
  2204
        window->data = data->next;
slouken@5165
  2205
        SDL_free(data->name);
slouken@5165
  2206
        SDL_free(data);
slouken@5165
  2207
    }
slouken@5165
  2208
slouken@3685
  2209
    /* Unlink the window from the list */
slouken@3693
  2210
    if (window->next) {
slouken@3693
  2211
        window->next->prev = window->prev;
slouken@3693
  2212
    }
slouken@3685
  2213
    if (window->prev) {
slouken@3685
  2214
        window->prev->next = window->next;
slouken@3685
  2215
    } else {
slouken@5246
  2216
        _this->windows = window->next;
slouken@3685
  2217
    }
slouken@3685
  2218
slouken@3685
  2219
    SDL_free(window);
slouken@1895
  2220
}
slouken@1895
  2221
slouken@3025
  2222
SDL_bool
slouken@3025
  2223
SDL_IsScreenSaverEnabled()
slouken@3025
  2224
{
slouken@3025
  2225
    if (!_this) {
slouken@3025
  2226
        return SDL_TRUE;
slouken@3025
  2227
    }
slouken@3025
  2228
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@3025
  2229
}
slouken@3025
  2230
slouken@3025
  2231
void
slouken@3025
  2232
SDL_EnableScreenSaver()
slouken@3025
  2233
{
slouken@3025
  2234
    if (!_this) {
slouken@3025
  2235
        return;
slouken@3025
  2236
    }
slouken@3025
  2237
    if (!_this->suspend_screensaver) {
slouken@3025
  2238
        return;
slouken@3025
  2239
    }
slouken@3025
  2240
    _this->suspend_screensaver = SDL_FALSE;
slouken@3025
  2241
    if (_this->SuspendScreenSaver) {
slouken@3025
  2242
        _this->SuspendScreenSaver(_this);
slouken@3025
  2243
    }
slouken@3025
  2244
}
slouken@3025
  2245
slouken@3025
  2246
void
slouken@3025
  2247
SDL_DisableScreenSaver()
slouken@3025
  2248
{
slouken@3025
  2249
    if (!_this) {
slouken@3025
  2250
        return;
slouken@3025
  2251
    }
slouken@3025
  2252
    if (_this->suspend_screensaver) {
slouken@3025
  2253
        return;
slouken@3025
  2254
    }
slouken@3025
  2255
    _this->suspend_screensaver = SDL_TRUE;
slouken@3025
  2256
    if (_this->SuspendScreenSaver) {
slouken@3025
  2257
        _this->SuspendScreenSaver(_this);
slouken@3025
  2258
    }
slouken@3025
  2259
}
slouken@3025
  2260
slouken@1895
  2261
void
slouken@1895
  2262
SDL_VideoQuit(void)
slouken@1895
  2263
{
slouken@2753
  2264
    int i, j;
slouken@1895
  2265
slouken@2753
  2266
    if (!_this) {
slouken@2753
  2267
        return;
slouken@2753
  2268
    }
slouken@5123
  2269
slouken@2753
  2270
    /* Halt event processing before doing anything else */
slouken@7360
  2271
    SDL_TouchQuit();
slouken@5123
  2272
    SDL_MouseQuit();
slouken@5123
  2273
    SDL_KeyboardQuit();
slouken@7360
  2274
    SDL_QuitSubSystem(SDL_INIT_EVENTS);
slouken@5123
  2275
slouken@3029
  2276
    SDL_EnableScreenSaver();
slouken@1895
  2277
slouken@2753
  2278
    /* Clean up the system video */
slouken@5246
  2279
    while (_this->windows) {
slouken@5246
  2280
        SDL_DestroyWindow(_this->windows);
slouken@2753
  2281
    }
slouken@2753
  2282
    _this->VideoQuit(_this);
slouken@1895
  2283
icculus@7441
  2284
    for (i = 0; i < _this->num_displays; ++i) {
slouken@2753
  2285
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@2753
  2286
        for (j = display->num_display_modes; j--;) {
slouken@7719
  2287
            SDL_free(display->display_modes[j].driverdata);
slouken@7719
  2288
            display->display_modes[j].driverdata = NULL;
slouken@2753
  2289
        }
slouken@7719
  2290
        SDL_free(display->display_modes);
slouken@7719
  2291
        display->display_modes = NULL;
slouken@7719
  2292
        SDL_free(display->desktop_mode.driverdata);
slouken@7719
  2293
        display->desktop_mode.driverdata = NULL;
slouken@7719
  2294
        SDL_free(display->driverdata);
slouken@7719
  2295
        display->driverdata = NULL;
slouken@2753
  2296
    }
slouken@2753
  2297
    if (_this->displays) {
slouken@6787
  2298
        for (i = 0; i < _this->num_displays; ++i) {
slouken@6787
  2299
            SDL_free(_this->displays[i].name);
slouken@6787
  2300
        }
slouken@2753
  2301
        SDL_free(_this->displays);
slouken@2753
  2302
        _this->displays = NULL;
slouken@6787
  2303
        _this->num_displays = 0;
slouken@2753
  2304
    }
slouken@7719
  2305
    SDL_free(_this->clipboard_text);
slouken@7719
  2306
    _this->clipboard_text = NULL;
slouken@2753
  2307
    _this->free(_this);
slouken@2753
  2308
    _this = NULL;
slouken@0
  2309
}
slouken@0
  2310
slouken@1895
  2311
int
slouken@1895
  2312
SDL_GL_LoadLibrary(const char *path)
slouken@0
  2313
{
slouken@2753
  2314
    int retval;
slouken@0
  2315
slouken@2753
  2316
    if (!_this) {
icculus@7037
  2317
        return SDL_UninitializedVideo();
slouken@2753
  2318
    }
slouken@3057
  2319
    if (_this->gl_config.driver_loaded) {
slouken@3057
  2320
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
icculus@7037
  2321
            return SDL_SetError("OpenGL library already loaded");
slouken@3057
  2322
        }
slouken@3057
  2323
        retval = 0;
slouken@3057
  2324
    } else {
slouken@3057
  2325
        if (!_this->GL_LoadLibrary) {
icculus@7037
  2326
            return  SDL_SetError("No dynamic GL support in video driver");
slouken@3057
  2327
        }
slouken@2753
  2328
        retval = _this->GL_LoadLibrary(_this, path);
slouken@3057
  2329
    }
slouken@3057
  2330
    if (retval == 0) {
slouken@3057
  2331
        ++_this->gl_config.driver_loaded;
slouken@2753
  2332
    }
slouken@2753
  2333
    return (retval);
slouken@0
  2334
}
slouken@0
  2335
slouken@2753
  2336
void *
slouken@1895
  2337
SDL_GL_GetProcAddress(const char *proc)
slouken@0
  2338
{
slouken@2753
  2339
    void *func;
slouken@0
  2340
slouken@2753
  2341
    if (!_this) {
slouken@2753
  2342
        SDL_UninitializedVideo();
slouken@2753
  2343
        return NULL;
slouken@2753
  2344
    }
slouken@2753
  2345
    func = NULL;
slouken@2753
  2346
    if (_this->GL_GetProcAddress) {
slouken@2753
  2347
        if (_this->gl_config.driver_loaded) {
slouken@2753
  2348
            func = _this->GL_GetProcAddress(_this, proc);
slouken@2753
  2349
        } else {
slouken@2753
  2350
            SDL_SetError("No GL driver has been loaded");
slouken@2753
  2351
        }
slouken@2753
  2352
    } else {
slouken@2753
  2353
        SDL_SetError("No dynamic GL support in video driver");
slouken@2753
  2354
    }
slouken@2753
  2355
    return func;
slouken@0
  2356
}
slouken@0
  2357
slouken@3057
  2358
void
slouken@3057
  2359
SDL_GL_UnloadLibrary(void)
slouken@3057
  2360
{
slouken@3057
  2361
    if (!_this) {
slouken@3057
  2362
        SDL_UninitializedVideo();
slouken@3057
  2363
        return;
slouken@3057
  2364
    }
slouken@3057
  2365
    if (_this->gl_config.driver_loaded > 0) {
slouken@3057
  2366
        if (--_this->gl_config.driver_loaded > 0) {
slouken@3057
  2367
            return;
slouken@3057
  2368
        }
slouken@3057
  2369
        if (_this->GL_UnloadLibrary) {
slouken@3057
  2370
            _this->GL_UnloadLibrary(_this);
slouken@3057
  2371
        }
slouken@3057
  2372
    }
slouken@3057
  2373
}
slouken@3057
  2374
icculus@7210
  2375
static __inline__ SDL_bool
icculus@7210
  2376
isAtLeastGL3(const char *verstr)
icculus@7210
  2377
{
icculus@7210
  2378
    return ( verstr && (SDL_atoi(verstr) >= 3) );
icculus@7210
  2379
}
icculus@7210
  2380
slouken@1926
  2381
SDL_bool
slouken@1926
  2382
SDL_GL_ExtensionSupported(const char *extension)
slouken@1926
  2383
{
slouken@5209
  2384
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2385
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@2753
  2386
    const char *extensions;
slouken@2753
  2387
    const char *start;
slouken@2753
  2388
    const char *where, *terminator;
slouken@1926
  2389
slouken@2753
  2390
    /* Extension names should not have spaces. */
slouken@2753
  2391
    where = SDL_strchr(extension, ' ');
slouken@2753
  2392
    if (where || *extension == '\0') {
slouken@2753
  2393
        return SDL_FALSE;
slouken@2753
  2394
    }
slouken@2753
  2395
    /* See if there's an environment variable override */
slouken@2753
  2396
    start = SDL_getenv(extension);
slouken@2753
  2397
    if (start && *start == '0') {
slouken@2753
  2398
        return SDL_FALSE;
slouken@2753
  2399
    }
icculus@7210
  2400
slouken@2753
  2401
    /* Lookup the available extensions */
icculus@7210
  2402
slouken@2753
  2403
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
icculus@7210
  2404
    if (!glGetStringFunc) {
icculus@7210
  2405
        return SDL_FALSE;
slouken@2753
  2406
    }
icculus@7210
  2407
icculus@7210
  2408
    if (isAtLeastGL3((const char *) glGetStringFunc(GL_VERSION))) {
icculus@7210
  2409
        const GLubyte *(APIENTRY * glGetStringiFunc) (GLenum, GLuint);
icculus@7210
  2410
        void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
icculus@7210
  2411
        GLint num_exts = 0;
icculus@7210
  2412
        GLint i;
icculus@7210
  2413
icculus@7210
  2414
        glGetStringiFunc = SDL_GL_GetProcAddress("glGetStringi");
icculus@7210
  2415
        glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
icculus@7210
  2416
        if ((!glGetStringiFunc) || (!glGetIntegervFunc)) {
icculus@7210
  2417
            return SDL_FALSE;
icculus@7210
  2418
        }
icculus@7210
  2419
icculus@7212
  2420
        #ifndef GL_NUM_EXTENSIONS
icculus@7212
  2421
        #define GL_NUM_EXTENSIONS 0x821D
icculus@7212
  2422
        #endif
icculus@7210
  2423
        glGetIntegervFunc(GL_NUM_EXTENSIONS, &num_exts);
icculus@7210
  2424
        for (i = 0; i < num_exts; i++) {
icculus@7210
  2425
            const char *thisext = (const char *) glGetStringiFunc(GL_EXTENSIONS, i);
icculus@7210
  2426
            if (SDL_strcmp(thisext, extension) == 0) {
icculus@7210
  2427
                return SDL_TRUE;
icculus@7210
  2428
            }
icculus@7210
  2429
        }
icculus@7210
  2430
icculus@7210
  2431
        return SDL_FALSE;
icculus@7210
  2432
    }
icculus@7210
  2433
icculus@7210
  2434
    /* Try the old way with glGetString(GL_EXTENSIONS) ... */
icculus@7210
  2435
icculus@7210
  2436
    extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@2753
  2437
    if (!extensions) {
slouken@2753
  2438
        return SDL_FALSE;
slouken@2753
  2439
    }
slouken@2753
  2440
    /*
slouken@2753
  2441
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@2753
  2442
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@2753
  2443
     */
slouken@1926
  2444
slouken@2753
  2445
    start = extensions;
slouken@1926
  2446
slouken@2753
  2447
    for (;;) {
slouken@2753
  2448
        where = SDL_strstr(start, extension);
slouken@2753
  2449
        if (!where)
slouken@2753
  2450
            break;
slouken@1926
  2451
slouken@2753
  2452
        terminator = where + SDL_strlen(extension);
slouken@2753
  2453
        if (where == start || *(where - 1) == ' ')
slouken@2753
  2454
            if (*terminator == ' ' || *terminator == '\0')
slouken@2753
  2455
                return SDL_TRUE;
slouken@1926
  2456
slouken@2753
  2457
        start = terminator;
slouken@2753
  2458
    }
slouken@2753
  2459
    return SDL_FALSE;
slouken@1926
  2460
#else
slouken@2753
  2461
    return SDL_FALSE;
slouken@1926
  2462
#endif
slouken@1926
  2463
}
slouken@1926
  2464
slouken@1895
  2465
int
slouken@1895
  2466
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@0
  2467
{
slouken@5209
  2468
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2469
    int retval;
slouken@0
  2470
slouken@2753
  2471
    if (!_this) {
icculus@7037
  2472
        return SDL_UninitializedVideo();
slouken@2753
  2473
    }
slouken@2753
  2474
    retval = 0;
slouken@2753
  2475
    switch (attr) {
slouken@2753
  2476
    case SDL_GL_RED_SIZE:
slouken@2753
  2477
        _this->gl_config.red_size = value;
slouken@2753
  2478
        break;
slouken@2753
  2479
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2480
        _this->gl_config.green_size = value;
slouken@2753
  2481
        break;
slouken@2753
  2482
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2483
        _this->gl_config.blue_size = value;
slouken@2753
  2484
        break;
slouken@2753
  2485
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2486
        _this->gl_config.alpha_size = value;
slouken@2753
  2487
        break;
slouken@2753
  2488
    case SDL_GL_DOUBLEBUFFER:
slouken@2753
  2489
        _this->gl_config.double_buffer = value;
slouken@2753
  2490
        break;
slouken@2753
  2491
    case SDL_GL_BUFFER_SIZE:
slouken@2753
  2492
        _this->gl_config.buffer_size = value;
slouken@2753
  2493
        break;
slouken@2753
  2494
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2495
        _this->gl_config.depth_size = value;
slouken@2753
  2496
        break;
slouken@2753
  2497
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2498
        _this->gl_config.stencil_size = value;
slouken@2753
  2499
        break;
slouken@2753
  2500
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2501
        _this->gl_config.accum_red_size = value;
slouken@2753
  2502
        break;
slouken@2753
  2503
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2504
        _this->gl_config.accum_green_size = value;
slouken@2753
  2505
        break;
slouken@2753
  2506
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2507
        _this->gl_config.accum_blue_size = value;
slouken@2753
  2508
        break;
slouken@2753
  2509
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2510
        _this->gl_config.accum_alpha_size = value;
slouken@2753
  2511
        break;
slouken@2753
  2512
    case SDL_GL_STEREO:
slouken@2753
  2513
        _this->gl_config.stereo = value;
slouken@2753
  2514
        break;
slouken@2753
  2515
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@2753
  2516
        _this->gl_config.multisamplebuffers = value;
slouken@2753
  2517
        break;
slouken@2753
  2518
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@2753
  2519
        _this->gl_config.multisamplesamples = value;
slouken@2753
  2520
        break;
slouken@2753
  2521
    case SDL_GL_ACCELERATED_VISUAL:
slouken@2753
  2522
        _this->gl_config.accelerated = value;
slouken@2753
  2523
        break;
slouken@2753
  2524
    case SDL_GL_RETAINED_BACKING:
slouken@2753
  2525
        _this->gl_config.retained_backing = value;
slouken@2753
  2526
        break;
slouken@3100
  2527
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@3100
  2528
        _this->gl_config.major_version = value;
slouken@3100
  2529
        break;
slouken@3100
  2530
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@3100
  2531
        _this->gl_config.minor_version = value;
slouken@3100
  2532
        break;
slouken@6370
  2533
    case SDL_GL_CONTEXT_EGL:
gabomdq@7723
  2534
        /* FIXME: SDL_GL_CONTEXT_EGL to be deprecated in SDL 2.1 */
gabomdq@7723
  2535
        if (value != 0) {
gabomdq@7723
  2536
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
gabomdq@7723
  2537
        } else {
gabomdq@7723
  2538
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, 0);
gabomdq@7723
  2539
        };
slouken@6370
  2540
        break;
slouken@6296
  2541
    case SDL_GL_CONTEXT_FLAGS:
slouken@6393
  2542
        if( value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@7191
  2543
              SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@7191
  2544
              SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@7191
  2545
              SDL_GL_CONTEXT_RESET_ISOLATION_FLAG) ) {
slouken@7191
  2546
        retval = SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@7191
  2547
        break;
slouken@7191
  2548
    }
slouken@6296
  2549
        _this->gl_config.flags = value;
slouken@6296
  2550
        break;
slouken@6296
  2551
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@6393
  2552
        if( value != 0 &&
slouken@7191
  2553
        value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@7191
  2554
        value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@7191
  2555
        value != SDL_GL_CONTEXT_PROFILE_ES ) {
slouken@7191
  2556
        retval = SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@7191
  2557
        break;
slouken@7191
  2558
    }
slouken@6296
  2559
        _this->gl_config.profile_mask = value;
slouken@6296
  2560
        break;
slouken@6393
  2561
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@6393
  2562
        _this->gl_config.share_with_current_context = value;
slouken@7191
  2563
    break;
slouken@2753
  2564
    default:
icculus@7037
  2565
        retval = SDL_SetError("Unknown OpenGL attribute");
slouken@2753
  2566
        break;
slouken@2753
  2567
    }
slouken@2753
  2568
    return retval;
slouken@1936
  2569
#else
icculus@7037
  2570
    return SDL_Unsupported();
slouken@2753
  2571
#endif /* SDL_VIDEO_OPENGL */
slouken@0
  2572
}
slouken@0
  2573
slouken@1895
  2574
int
slouken@1936
  2575
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@0
  2576
{
slouken@5209
  2577
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@2753
  2578
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@3139
  2579
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@2753
  2580
    GLenum attrib = 0;
slouken@3099
  2581
    GLenum error = 0;
slouken@1912
  2582
slouken@2753
  2583
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@2753
  2584
    if (!glGetIntegervFunc) {
slouken@2753
  2585
        return -1;
slouken@2753
  2586
    }
slouken@3099
  2587
slouken@3099
  2588
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@3099
  2589
    if (!glGetErrorFunc) {
slouken@3099
  2590
        return -1;
slouken@3099
  2591
    }
slouken@3099
  2592
slouken@3099
  2593
    /* Clear value in any case */
slouken@3139
  2594
    *value = 0;
slouken@3099
  2595
slouken@2753
  2596
    switch (attr) {
slouken@2753
  2597
    case SDL_GL_RED_SIZE:
slouken@2753
  2598
        attrib = GL_RED_BITS;
slouken@2753
  2599
        break;
slouken@2753
  2600
    case SDL_GL_BLUE_SIZE:
slouken@2753
  2601
        attrib = GL_BLUE_BITS;
slouken@2753
  2602
        break;
slouken@2753
  2603
    case SDL_GL_GREEN_SIZE:
slouken@2753
  2604
        attrib = GL_GREEN_BITS;
slouken@2753
  2605
        break;
slouken@2753
  2606
    case SDL_GL_ALPHA_SIZE:
slouken@2753
  2607
        attrib = GL_ALPHA_BITS;
slouken@2753
  2608
        break;
slouken@2753
  2609
    case SDL_GL_DOUBLEBUFFER:
slouken@5209
  2610
#if SDL_VIDEO_OPENGL
slouken@2753
  2611
        attrib = GL_DOUBLEBUFFER;
slouken@2753
  2612
        break;
hfutrell@2745
  2613
#else
slouken@3099
  2614
        /* OpenGL ES 1.0 and above specifications have EGL_SINGLE_BUFFER      */
slouken@3099
  2615
        /* parameter which switches double buffer to single buffer. OpenGL ES */
slouken@3099
  2616
        /* SDL driver must set proper value after initialization              */
slouken@3099
  2617
        *value = _this->gl_config.double_buffer;
slouken@2753
  2618
        return 0;
hfutrell@2745
  2619
#endif
slouken@2753
  2620
    case SDL_GL_DEPTH_SIZE:
slouken@2753
  2621
        attrib = GL_DEPTH_BITS;
slouken@2753
  2622
        break;
slouken@2753
  2623
    case SDL_GL_STENCIL_SIZE:
slouken@2753
  2624
        attrib = GL_STENCIL_BITS;
slouken@2753
  2625
        break;
slouken@5209
  2626
#if SDL_VIDEO_OPENGL
slouken@2753
  2627
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2628
        attrib = GL_ACCUM_RED_BITS;
slouken@2753
  2629
        break;
slouken@2753
  2630
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2631
        attrib = GL_ACCUM_GREEN_BITS;
slouken@2753
  2632
        break;
slouken@2753
  2633
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2634
        attrib = GL_ACCUM_BLUE_BITS;
slouken@2753
  2635
        break;
slouken@2753
  2636
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2637
        attrib = GL_ACCUM_ALPHA_BITS;
slouken@2753
  2638
        break;
slouken@2753
  2639
    case SDL_GL_STEREO:
slouken@2753
  2640
        attrib = GL_STEREO;
slouken@2753
  2641
        break;
hfutrell@2745
  2642
#else
slouken@2753
  2643
    case SDL_GL_ACCUM_RED_SIZE:
slouken@2753
  2644
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@2753
  2645
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@2753
  2646
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@2753
  2647
    case SDL_GL_STEREO:
slouken@2753