src/video/SDL_video.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 15 Oct 2014 09:14:09 -0700
changeset 9163 d05b5b2775ae
parent 9135 6cd8e6b54f4d
child 9164 494876610c49
permissions -rw-r--r--
Better error reporting for video drivers with less than full functionality.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 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_internal.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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#include "SDL_syswm.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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/* 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_MIR
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    &MIR_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_WINRT
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    &WINRT_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_HAIKU
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    &HAIKU_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_RPI
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    &RPI_bootstrap,
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#endif 
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#if SDL_VIDEO_DRIVER_WAYLAND
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    &Wayland_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_NACL
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    &NACL_bootstrap,
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#endif
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#if SDL_VIDEO_DRIVER_MX6
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    &MX6_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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    SDL_assert(_this->displays != NULL); \
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    if (displayIndex < 0 || displayIndex >= _this->num_displays) { \
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        SDL_SetError("displayIndex must be in the range 0 - %d", \
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                     _this->num_displays - 1); \
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        return retval; \
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    }
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#define FULLSCREEN_MASK (SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN)
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#ifdef __MACOSX__
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/* Support for Mac OS X fullscreen spaces */
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extern SDL_bool Cocoa_IsWindowInFullscreenSpace(SDL_Window * window);
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extern SDL_bool Cocoa_SetWindowFullscreenSpace(SDL_Window * window, SDL_bool state);
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#endif
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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(SDL_VideoDevice *unused, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
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{
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    SDL_WindowTextureData *data;
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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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        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_RendererInfo info;
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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_RendererInfo info;
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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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    {
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        SDL_RendererInfo info;
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        Uint32 i;
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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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    }
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    data->texture = SDL_CreateTexture(data->renderer, *format,
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                                      SDL_TEXTUREACCESS_STREAMING,
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                                      window->w, window->h);
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    if (!data->texture) {
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        return -1;
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    }
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    /* Create framebuffer data */
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    data->bytes_per_pixel = SDL_BYTESPERPIXEL(*format);
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    data->pitch = (((window->w * data->bytes_per_pixel) + 3) & ~3);
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    data->pixels = SDL_malloc(window->h * data->pitch);
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    if (!data->pixels) {
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        return SDL_OutOfMemory();
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    }
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    *pixels = data->pixels;
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    *pitch = data->pitch;
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    /* Make sure we're not double-scaling the viewport */
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    SDL_RenderSetViewport(data->renderer, NULL);
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    return 0;
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}
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static int
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SDL_UpdateWindowTexture(SDL_VideoDevice *unused, SDL_Window * window, const SDL_Rect * rects, int numrects)
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{
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    SDL_WindowTextureData *data;
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    SDL_Rect rect;
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    void *src;
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    data = SDL_GetWindowData(window, SDL_WINDOWTEXTUREDATA);
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    if (!data || !data->texture) {
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        return SDL_SetError("No window texture data");
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    }
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    /* Update a single rect that contains subrects for best DMA performance */
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    if (SDL_GetSpanEnclosingRect(window->w, window->h, numrects, rects, &rect)) {
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        src = (void *)((Uint8 *)data->pixels +
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                        rect.y * data->pitch +
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                        rect.x * data->bytes_per_pixel);
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        if (SDL_UpdateTexture(data->texture, &rect, src, data->pitch) < 0) {
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            return -1;
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        }
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        if (SDL_RenderCopy(data->renderer, data->texture, NULL, NULL) < 0) {
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            return -1;
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        }
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        SDL_RenderPresent(data->renderer);
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    }
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    return 0;
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}
slouken@8582
   369
slouken@8582
   370
static void
slouken@8922
   371
SDL_DestroyWindowTexture(SDL_VideoDevice *unused, SDL_Window * window)
slouken@8582
   372
{
slouken@8582
   373
    SDL_WindowTextureData *data;
slouken@8582
   374
slouken@8582
   375
    data = SDL_SetWindowData(window, SDL_WINDOWTEXTUREDATA, NULL);
slouken@8582
   376
    if (!data) {
slouken@8582
   377
        return;
slouken@8582
   378
    }
slouken@8582
   379
    if (data->texture) {
slouken@8582
   380
        SDL_DestroyTexture(data->texture);
slouken@8582
   381
    }
slouken@8582
   382
    if (data->renderer) {
slouken@8582
   383
        SDL_DestroyRenderer(data->renderer);
slouken@8582
   384
    }
slouken@8582
   385
    SDL_free(data->pixels);
slouken@8582
   386
    SDL_free(data);
slouken@8582
   387
}
slouken@8582
   388
slouken@8582
   389
slouken@8582
   390
static int
slouken@8582
   391
cmpmodes(const void *A, const void *B)
slouken@8582
   392
{
slouken@8582
   393
    const SDL_DisplayMode *a = (const SDL_DisplayMode *) A;
slouken@8582
   394
    const SDL_DisplayMode *b = (const SDL_DisplayMode *) B;
slouken@8582
   395
    if (a == b) {
slouken@8582
   396
        return 0;
slouken@8582
   397
    } else if (a->w != b->w) {
slouken@8582
   398
        return b->w - a->w;
slouken@8582
   399
    } else if (a->h != b->h) {
slouken@8582
   400
        return b->h - a->h;
slouken@8582
   401
    } else if (SDL_BITSPERPIXEL(a->format) != SDL_BITSPERPIXEL(b->format)) {
slouken@8582
   402
        return SDL_BITSPERPIXEL(b->format) - SDL_BITSPERPIXEL(a->format);
slouken@8582
   403
    } else if (SDL_PIXELLAYOUT(a->format) != SDL_PIXELLAYOUT(b->format)) {
slouken@8582
   404
        return SDL_PIXELLAYOUT(b->format) - SDL_PIXELLAYOUT(a->format);
slouken@8582
   405
    } else if (a->refresh_rate != b->refresh_rate) {
slouken@8582
   406
        return b->refresh_rate - a->refresh_rate;
slouken@8582
   407
    }
slouken@8582
   408
    return 0;
slouken@8582
   409
}
slouken@8582
   410
slouken@8582
   411
static int
slouken@8582
   412
SDL_UninitializedVideo()
slouken@8582
   413
{
slouken@8582
   414
    return SDL_SetError("Video subsystem has not been initialized");
slouken@8582
   415
}
slouken@8582
   416
slouken@8582
   417
int
slouken@8582
   418
SDL_GetNumVideoDrivers(void)
slouken@8582
   419
{
slouken@8582
   420
    return SDL_arraysize(bootstrap) - 1;
slouken@8582
   421
}
slouken@8582
   422
slouken@8582
   423
const char *
slouken@8582
   424
SDL_GetVideoDriver(int index)
slouken@8582
   425
{
slouken@8582
   426
    if (index >= 0 && index < SDL_GetNumVideoDrivers()) {
slouken@8582
   427
        return bootstrap[index]->name;
slouken@8582
   428
    }
slouken@8582
   429
    return NULL;
slouken@8582
   430
}
slouken@8582
   431
slouken@8582
   432
/*
slouken@8582
   433
 * Initialize the video and event subsystems -- determine native pixel format
slouken@8582
   434
 */
slouken@8582
   435
int
slouken@8582
   436
SDL_VideoInit(const char *driver_name)
slouken@8582
   437
{
slouken@8582
   438
    SDL_VideoDevice *video;
slouken@8266
   439
    const char *hint;
slouken@8582
   440
    int index;
slouken@8582
   441
    int i;
slouken@8266
   442
    SDL_bool allow_screensaver;
slouken@8582
   443
slouken@8582
   444
    /* Check to make sure we don't overwrite '_this' */
slouken@8582
   445
    if (_this != NULL) {
slouken@8582
   446
        SDL_VideoQuit();
slouken@8582
   447
    }
slouken@8582
   448
slouken@8582
   449
#if !SDL_TIMERS_DISABLED
slouken@8268
   450
    SDL_TicksInit();
slouken@8582
   451
#endif
slouken@8582
   452
slouken@8582
   453
    /* Start the event loop */
slouken@8582
   454
    if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0 ||
slouken@8582
   455
        SDL_KeyboardInit() < 0 ||
slouken@8582
   456
        SDL_MouseInit() < 0 ||
slouken@8582
   457
        SDL_TouchInit() < 0) {
slouken@8582
   458
        return -1;
slouken@8582
   459
    }
slouken@8582
   460
slouken@8582
   461
    /* Select the proper video driver */
slouken@8582
   462
    index = 0;
slouken@8582
   463
    video = NULL;
slouken@8582
   464
    if (driver_name == NULL) {
slouken@8582
   465
        driver_name = SDL_getenv("SDL_VIDEODRIVER");
slouken@8582
   466
    }
slouken@8582
   467
    if (driver_name != NULL) {
slouken@8582
   468
        for (i = 0; bootstrap[i]; ++i) {
slouken@8582
   469
            if (SDL_strncasecmp(bootstrap[i]->name, driver_name, SDL_strlen(driver_name)) == 0) {
gabomdq@8117
   470
                if (bootstrap[i]->available()) {
gabomdq@8117
   471
                    video = bootstrap[i]->create(index);
gabomdq@8117
   472
                    break;
gabomdq@8117
   473
                }
slouken@8582
   474
            }
slouken@8582
   475
        }
slouken@8582
   476
    } else {
slouken@8582
   477
        for (i = 0; bootstrap[i]; ++i) {
slouken@8582
   478
            if (bootstrap[i]->available()) {
slouken@8582
   479
                video = bootstrap[i]->create(index);
slouken@8582
   480
                if (video != NULL) {
slouken@8582
   481
                    break;
slouken@8582
   482
                }
slouken@8582
   483
            }
slouken@8582
   484
        }
slouken@8582
   485
    }
slouken@8582
   486
    if (video == NULL) {
slouken@8582
   487
        if (driver_name) {
slouken@8582
   488
            return SDL_SetError("%s not available", driver_name);
slouken@8582
   489
        }
slouken@8582
   490
        return SDL_SetError("No available video device");
slouken@8582
   491
    }
slouken@8582
   492
    _this = video;
slouken@8582
   493
    _this->name = bootstrap[i]->name;
slouken@8582
   494
    _this->next_object_id = 1;
slouken@8582
   495
slouken@8582
   496
slouken@8582
   497
    /* Set some very sane GL defaults */
slouken@8582
   498
    _this->gl_config.driver_loaded = 0;
slouken@8582
   499
    _this->gl_config.dll_handle = NULL;
jorgen@8145
   500
    SDL_GL_ResetAttributes();
slouken@8582
   501
slouken@8582
   502
    _this->current_glwin_tls = SDL_TLSCreate();
slouken@8582
   503
    _this->current_glctx_tls = SDL_TLSCreate();
slouken@8582
   504
slouken@8582
   505
    /* Initialize the video subsystem */
slouken@8582
   506
    if (_this->VideoInit(_this) < 0) {
slouken@8582
   507
        SDL_VideoQuit();
slouken@8582
   508
        return -1;
slouken@8582
   509
    }
slouken@8582
   510
slouken@8582
   511
    /* Make sure some displays were added */
slouken@8582
   512
    if (_this->num_displays == 0) {
slouken@8582
   513
        SDL_VideoQuit();
slouken@8582
   514
        return SDL_SetError("The video driver did not add any displays");
slouken@8582
   515
    }
slouken@8582
   516
slouken@8582
   517
    /* Add the renderer framebuffer emulation if desired */
slouken@8582
   518
    if (ShouldUseTextureFramebuffer()) {
slouken@8582
   519
        _this->CreateWindowFramebuffer = SDL_CreateWindowTexture;
slouken@8582
   520
        _this->UpdateWindowFramebuffer = SDL_UpdateWindowTexture;
slouken@8582
   521
        _this->DestroyWindowFramebuffer = SDL_DestroyWindowTexture;
slouken@8582
   522
    }
slouken@8582
   523
icculus@8265
   524
    /* Disable the screen saver by default. This is a change from <= 2.0.1,
icculus@8265
   525
       but most things using SDL are games or media players; you wouldn't
icculus@8265
   526
       want a screensaver to trigger if you're playing exclusively with a
icculus@8265
   527
       joystick, or passively watching a movie. Things that use SDL but
icculus@8265
   528
       function more like a normal desktop app should explicitly reenable the
icculus@8265
   529
       screensaver. */
slouken@8266
   530
    hint = SDL_GetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER);
slouken@8266
   531
    if (hint) {
slouken@8266
   532
        allow_screensaver = SDL_atoi(hint) ? SDL_TRUE : SDL_FALSE;
slouken@8266
   533
    } else {
slouken@8266
   534
        allow_screensaver = SDL_FALSE;
slouken@8266
   535
    }
slouken@8266
   536
    if (!allow_screensaver) {
slouken@8266
   537
        SDL_DisableScreenSaver();
slouken@8266
   538
    }
icculus@8265
   539
slouken@8582
   540
    /* If we don't use a screen keyboard, turn on text input by default,
slouken@8582
   541
       otherwise programs that expect to get text events without enabling
slouken@8582
   542
       UNICODE input won't get any events.
slouken@8582
   543
slouken@8582
   544
       Actually, come to think of it, you needed to call SDL_EnableUNICODE(1)
slouken@8582
   545
       in SDL 1.2 before you got text input events.  Hmm...
slouken@8582
   546
     */
slouken@8582
   547
    if (!SDL_HasScreenKeyboardSupport()) {
slouken@8582
   548
        SDL_StartTextInput();
slouken@8582
   549
    }
slouken@8582
   550
slouken@8582
   551
    /* We're ready to go! */
slouken@8582
   552
    return 0;
slouken@8582
   553
}
slouken@8582
   554
slouken@8582
   555
const char *
slouken@8582
   556
SDL_GetCurrentVideoDriver()
slouken@8582
   557
{
slouken@8582
   558
    if (!_this) {
slouken@8582
   559
        SDL_UninitializedVideo();
slouken@8582
   560
        return NULL;
slouken@8582
   561
    }
slouken@8582
   562
    return _this->name;
slouken@8582
   563
}
slouken@8582
   564
slouken@8582
   565
SDL_VideoDevice *
slouken@8582
   566
SDL_GetVideoDevice(void)
slouken@8582
   567
{
slouken@8582
   568
    return _this;
slouken@8582
   569
}
slouken@8582
   570
slouken@8582
   571
int
slouken@8582
   572
SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode)
slouken@8582
   573
{
slouken@8582
   574
    SDL_VideoDisplay display;
slouken@8582
   575
slouken@8582
   576
    SDL_zero(display);
slouken@8582
   577
    if (desktop_mode) {
slouken@8582
   578
        display.desktop_mode = *desktop_mode;
slouken@8582
   579
    }
slouken@8582
   580
    display.current_mode = display.desktop_mode;
slouken@8582
   581
slouken@8582
   582
    return SDL_AddVideoDisplay(&display);
slouken@8582
   583
}
slouken@8582
   584
slouken@8582
   585
int
slouken@8582
   586
SDL_AddVideoDisplay(const SDL_VideoDisplay * display)
slouken@8582
   587
{
slouken@8582
   588
    SDL_VideoDisplay *displays;
slouken@8582
   589
    int index = -1;
slouken@8582
   590
slouken@8582
   591
    displays =
slouken@8582
   592
        SDL_realloc(_this->displays,
slouken@8582
   593
                    (_this->num_displays + 1) * sizeof(*displays));
slouken@8582
   594
    if (displays) {
slouken@8582
   595
        index = _this->num_displays++;
slouken@8582
   596
        displays[index] = *display;
slouken@8582
   597
        displays[index].device = _this;
slouken@8582
   598
        _this->displays = displays;
slouken@8582
   599
slouken@8582
   600
        if (display->name) {
slouken@8582
   601
            displays[index].name = SDL_strdup(display->name);
slouken@8582
   602
        } else {
slouken@8582
   603
            char name[32];
slouken@8582
   604
slouken@8582
   605
            SDL_itoa(index, name, 10);
slouken@8582
   606
            displays[index].name = SDL_strdup(name);
slouken@8582
   607
        }
slouken@8582
   608
    } else {
slouken@8582
   609
        SDL_OutOfMemory();
slouken@8582
   610
    }
slouken@8582
   611
    return index;
slouken@8582
   612
}
slouken@8582
   613
slouken@8582
   614
int
slouken@8582
   615
SDL_GetNumVideoDisplays(void)
slouken@8582
   616
{
slouken@8582
   617
    if (!_this) {
slouken@8582
   618
        SDL_UninitializedVideo();
slouken@8582
   619
        return 0;
slouken@8582
   620
    }
slouken@8582
   621
    return _this->num_displays;
slouken@8582
   622
}
slouken@8582
   623
slouken@8582
   624
static int
slouken@8582
   625
SDL_GetIndexOfDisplay(SDL_VideoDisplay *display)
slouken@8582
   626
{
slouken@8582
   627
    int displayIndex;
slouken@8582
   628
slouken@8582
   629
    for (displayIndex = 0; displayIndex < _this->num_displays; ++displayIndex) {
slouken@8582
   630
        if (display == &_this->displays[displayIndex]) {
slouken@8582
   631
            return displayIndex;
slouken@8582
   632
        }
slouken@8582
   633
    }
slouken@8582
   634
slouken@8582
   635
    /* Couldn't find the display, just use index 0 */
slouken@8582
   636
    return 0;
slouken@8582
   637
}
slouken@8582
   638
slouken@8582
   639
void *
slouken@8818
   640
SDL_GetDisplayDriverData(int displayIndex)
slouken@8582
   641
{
slouken@8818
   642
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@8582
   643
slouken@8582
   644
    return _this->displays[displayIndex].driverdata;
slouken@8582
   645
}
slouken@8582
   646
slouken@8582
   647
const char *
slouken@8582
   648
SDL_GetDisplayName(int displayIndex)
slouken@8582
   649
{
slouken@8582
   650
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@8582
   651
slouken@8582
   652
    return _this->displays[displayIndex].name;
slouken@8582
   653
}
slouken@8582
   654
slouken@8582
   655
int
slouken@8582
   656
SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect)
slouken@8582
   657
{
slouken@8582
   658
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   659
slouken@8582
   660
    if (rect) {
slouken@8582
   661
        SDL_VideoDisplay *display = &_this->displays[displayIndex];
slouken@8582
   662
slouken@8582
   663
        if (_this->GetDisplayBounds) {
slouken@8582
   664
            if (_this->GetDisplayBounds(_this, display, rect) == 0) {
slouken@8582
   665
                return 0;
slouken@8582
   666
            }
slouken@8582
   667
        }
slouken@8582
   668
slouken@8582
   669
        /* Assume that the displays are left to right */
slouken@8582
   670
        if (displayIndex == 0) {
slouken@8582
   671
            rect->x = 0;
slouken@8582
   672
            rect->y = 0;
slouken@8582
   673
        } else {
slouken@8582
   674
            SDL_GetDisplayBounds(displayIndex-1, rect);
slouken@8582
   675
            rect->x += rect->w;
slouken@8582
   676
        }
slouken@8582
   677
        rect->w = display->current_mode.w;
slouken@8582
   678
        rect->h = display->current_mode.h;
slouken@8582
   679
    }
slouken@8582
   680
    return 0;
slouken@8582
   681
}
slouken@8582
   682
slouken@8582
   683
SDL_bool
slouken@8582
   684
SDL_AddDisplayMode(SDL_VideoDisplay * display,  const SDL_DisplayMode * mode)
slouken@8582
   685
{
slouken@8582
   686
    SDL_DisplayMode *modes;
slouken@8582
   687
    int i, nmodes;
slouken@8582
   688
slouken@8582
   689
    /* Make sure we don't already have the mode in the list */
slouken@8582
   690
    modes = display->display_modes;
slouken@8582
   691
    nmodes = display->num_display_modes;
slouken@8582
   692
    for (i = 0; i < nmodes; ++i) {
slouken@8582
   693
        if (cmpmodes(mode, &modes[i]) == 0) {
slouken@8582
   694
            return SDL_FALSE;
slouken@8582
   695
        }
slouken@8582
   696
    }
slouken@8582
   697
slouken@8582
   698
    /* Go ahead and add the new mode */
slouken@8582
   699
    if (nmodes == display->max_display_modes) {
slouken@8582
   700
        modes =
slouken@8582
   701
            SDL_realloc(modes,
slouken@8582
   702
                        (display->max_display_modes + 32) * sizeof(*modes));
slouken@8582
   703
        if (!modes) {
slouken@8582
   704
            return SDL_FALSE;
slouken@8582
   705
        }
slouken@8582
   706
        display->display_modes = modes;
slouken@8582
   707
        display->max_display_modes += 32;
slouken@8582
   708
    }
slouken@8582
   709
    modes[nmodes] = *mode;
slouken@8582
   710
    display->num_display_modes++;
slouken@8582
   711
slouken@8582
   712
    /* Re-sort video modes */
slouken@8582
   713
    SDL_qsort(display->display_modes, display->num_display_modes,
slouken@8582
   714
              sizeof(SDL_DisplayMode), cmpmodes);
slouken@8582
   715
slouken@8582
   716
    return SDL_TRUE;
slouken@8582
   717
}
slouken@8582
   718
slouken@8582
   719
static int
slouken@8582
   720
SDL_GetNumDisplayModesForDisplay(SDL_VideoDisplay * display)
slouken@8582
   721
{
slouken@8582
   722
    if (!display->num_display_modes && _this->GetDisplayModes) {
slouken@8582
   723
        _this->GetDisplayModes(_this, display);
slouken@8582
   724
        SDL_qsort(display->display_modes, display->num_display_modes,
slouken@8582
   725
                  sizeof(SDL_DisplayMode), cmpmodes);
slouken@8582
   726
    }
slouken@8582
   727
    return display->num_display_modes;
slouken@8582
   728
}
slouken@8582
   729
slouken@8582
   730
int
slouken@8582
   731
SDL_GetNumDisplayModes(int displayIndex)
slouken@8582
   732
{
slouken@8582
   733
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   734
slouken@8582
   735
    return SDL_GetNumDisplayModesForDisplay(&_this->displays[displayIndex]);
slouken@8582
   736
}
slouken@8582
   737
slouken@8582
   738
int
slouken@8582
   739
SDL_GetDisplayMode(int displayIndex, int index, SDL_DisplayMode * mode)
slouken@8582
   740
{
slouken@8582
   741
    SDL_VideoDisplay *display;
slouken@8582
   742
slouken@8582
   743
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   744
slouken@8582
   745
    display = &_this->displays[displayIndex];
slouken@8582
   746
    if (index < 0 || index >= SDL_GetNumDisplayModesForDisplay(display)) {
slouken@8582
   747
        return SDL_SetError("index must be in the range of 0 - %d",
slouken@8582
   748
                            SDL_GetNumDisplayModesForDisplay(display) - 1);
slouken@8582
   749
    }
slouken@8582
   750
    if (mode) {
slouken@8582
   751
        *mode = display->display_modes[index];
slouken@8582
   752
    }
slouken@8582
   753
    return 0;
slouken@8582
   754
}
slouken@8582
   755
slouken@8582
   756
int
slouken@8582
   757
SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@8582
   758
{
slouken@8582
   759
    SDL_VideoDisplay *display;
slouken@8582
   760
slouken@8582
   761
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   762
slouken@8582
   763
    display = &_this->displays[displayIndex];
slouken@8582
   764
    if (mode) {
slouken@8582
   765
        *mode = display->desktop_mode;
slouken@8582
   766
    }
slouken@8582
   767
    return 0;
slouken@8582
   768
}
slouken@8582
   769
slouken@8582
   770
int
slouken@8582
   771
SDL_GetCurrentDisplayMode(int displayIndex, SDL_DisplayMode * mode)
slouken@8582
   772
{
slouken@8582
   773
    SDL_VideoDisplay *display;
slouken@8582
   774
slouken@8582
   775
    CHECK_DISPLAY_INDEX(displayIndex, -1);
slouken@8582
   776
slouken@8582
   777
    display = &_this->displays[displayIndex];
slouken@8582
   778
    if (mode) {
slouken@8582
   779
        *mode = display->current_mode;
slouken@8582
   780
    }
slouken@8582
   781
    return 0;
slouken@8582
   782
}
slouken@8582
   783
slouken@8582
   784
static SDL_DisplayMode *
slouken@8582
   785
SDL_GetClosestDisplayModeForDisplay(SDL_VideoDisplay * display,
slouken@8582
   786
                                    const SDL_DisplayMode * mode,
slouken@8582
   787
                                    SDL_DisplayMode * closest)
slouken@8582
   788
{
slouken@8582
   789
    Uint32 target_format;
slouken@8582
   790
    int target_refresh_rate;
slouken@8582
   791
    int i;
slouken@8582
   792
    SDL_DisplayMode *current, *match;
slouken@8582
   793
slouken@8582
   794
    if (!mode || !closest) {
slouken@8582
   795
        SDL_SetError("Missing desired mode or closest mode parameter");
slouken@8582
   796
        return NULL;
slouken@8582
   797
    }
slouken@8582
   798
slouken@8582
   799
    /* Default to the desktop format */
slouken@8582
   800
    if (mode->format) {
slouken@8582
   801
        target_format = mode->format;
slouken@8582
   802
    } else {
slouken@8582
   803
        target_format = display->desktop_mode.format;
slouken@8582
   804
    }
slouken@8582
   805
slouken@8582
   806
    /* Default to the desktop refresh rate */
slouken@8582
   807
    if (mode->refresh_rate) {
slouken@8582
   808
        target_refresh_rate = mode->refresh_rate;
slouken@8582
   809
    } else {
slouken@8582
   810
        target_refresh_rate = display->desktop_mode.refresh_rate;
slouken@8582
   811
    }
slouken@8582
   812
slouken@8582
   813
    match = NULL;
slouken@8582
   814
    for (i = 0; i < SDL_GetNumDisplayModesForDisplay(display); ++i) {
slouken@8582
   815
        current = &display->display_modes[i];
slouken@8582
   816
slouken@8582
   817
        if (current->w && (current->w < mode->w)) {
slouken@8582
   818
            /* Out of sorted modes large enough here */
slouken@8582
   819
            break;
slouken@8582
   820
        }
slouken@8582
   821
        if (current->h && (current->h < mode->h)) {
slouken@8582
   822
            if (current->w && (current->w == mode->w)) {
slouken@8582
   823
                /* Out of sorted modes large enough here */
slouken@8582
   824
                break;
slouken@8582
   825
            }
slouken@8582
   826
            /* Wider, but not tall enough, due to a different
slouken@8582
   827
               aspect ratio. This mode must be skipped, but closer
slouken@8582
   828
               modes may still follow. */
slouken@8582
   829
            continue;
slouken@8582
   830
        }
slouken@8582
   831
        if (!match || current->w < match->w || current->h < match->h) {
slouken@8582
   832
            match = current;
slouken@8582
   833
            continue;
slouken@8582
   834
        }
slouken@8582
   835
        if (current->format != match->format) {
slouken@8582
   836
            /* Sorted highest depth to lowest */
slouken@8582
   837
            if (current->format == target_format ||
slouken@8582
   838
                (SDL_BITSPERPIXEL(current->format) >=
slouken@8582
   839
                 SDL_BITSPERPIXEL(target_format)
slouken@8582
   840
                 && SDL_PIXELTYPE(current->format) ==
slouken@8582
   841
                 SDL_PIXELTYPE(target_format))) {
slouken@8582
   842
                match = current;
slouken@8582
   843
            }
slouken@8582
   844
            continue;
slouken@8582
   845
        }
slouken@8582
   846
        if (current->refresh_rate != match->refresh_rate) {
slouken@8582
   847
            /* Sorted highest refresh to lowest */
slouken@8582
   848
            if (current->refresh_rate >= target_refresh_rate) {
slouken@8582
   849
                match = current;
slouken@8582
   850
            }
slouken@8582
   851
        }
slouken@8582
   852
    }
slouken@8582
   853
    if (match) {
slouken@8582
   854
        if (match->format) {
slouken@8582
   855
            closest->format = match->format;
slouken@8582
   856
        } else {
slouken@8582
   857
            closest->format = mode->format;
slouken@8582
   858
        }
slouken@8582
   859
        if (match->w && match->h) {
slouken@8582
   860
            closest->w = match->w;
slouken@8582
   861
            closest->h = match->h;
slouken@8582
   862
        } else {
slouken@8582
   863
            closest->w = mode->w;
slouken@8582
   864
            closest->h = mode->h;
slouken@8582
   865
        }
slouken@8582
   866
        if (match->refresh_rate) {
slouken@8582
   867
            closest->refresh_rate = match->refresh_rate;
slouken@8582
   868
        } else {
slouken@8582
   869
            closest->refresh_rate = mode->refresh_rate;
slouken@8582
   870
        }
slouken@8582
   871
        closest->driverdata = match->driverdata;
slouken@8582
   872
slouken@8582
   873
        /*
slouken@8582
   874
         * Pick some reasonable defaults if the app and driver don't
slouken@8582
   875
         * care
slouken@8582
   876
         */
slouken@8582
   877
        if (!closest->format) {
slouken@8582
   878
            closest->format = SDL_PIXELFORMAT_RGB888;
slouken@8582
   879
        }
slouken@8582
   880
        if (!closest->w) {
slouken@8582
   881
            closest->w = 640;
slouken@8582
   882
        }
slouken@8582
   883
        if (!closest->h) {
slouken@8582
   884
            closest->h = 480;
slouken@8582
   885
        }
slouken@8582
   886
        return closest;
slouken@8582
   887
    }
slouken@8582
   888
    return NULL;
slouken@8582
   889
}
slouken@8582
   890
slouken@8582
   891
SDL_DisplayMode *
slouken@8582
   892
SDL_GetClosestDisplayMode(int displayIndex,
slouken@8582
   893
                          const SDL_DisplayMode * mode,
slouken@8582
   894
                          SDL_DisplayMode * closest)
slouken@8582
   895
{
slouken@8582
   896
    SDL_VideoDisplay *display;
slouken@8582
   897
slouken@8582
   898
    CHECK_DISPLAY_INDEX(displayIndex, NULL);
slouken@8582
   899
slouken@8582
   900
    display = &_this->displays[displayIndex];
slouken@8582
   901
    return SDL_GetClosestDisplayModeForDisplay(display, mode, closest);
slouken@8582
   902
}
slouken@8582
   903
slouken@8582
   904
static int
slouken@8582
   905
SDL_SetDisplayModeForDisplay(SDL_VideoDisplay * display, const SDL_DisplayMode * mode)
slouken@8582
   906
{
slouken@8582
   907
    SDL_DisplayMode display_mode;
slouken@8582
   908
    SDL_DisplayMode current_mode;
slouken@8582
   909
slouken@8582
   910
    if (mode) {
slouken@8582
   911
        display_mode = *mode;
slouken@8582
   912
slouken@8582
   913
        /* Default to the current mode */
slouken@8582
   914
        if (!display_mode.format) {
slouken@8582
   915
            display_mode.format = display->current_mode.format;
slouken@8582
   916
        }
slouken@8582
   917
        if (!display_mode.w) {
slouken@8582
   918
            display_mode.w = display->current_mode.w;
slouken@8582
   919
        }
slouken@8582
   920
        if (!display_mode.h) {
slouken@8582
   921
            display_mode.h = display->current_mode.h;
slouken@8582
   922
        }
slouken@8582
   923
        if (!display_mode.refresh_rate) {
slouken@8582
   924
            display_mode.refresh_rate = display->current_mode.refresh_rate;
slouken@8582
   925
        }
slouken@8582
   926
slouken@8582
   927
        /* Get a good video mode, the closest one possible */
slouken@8582
   928
        if (!SDL_GetClosestDisplayModeForDisplay(display, &display_mode, &display_mode)) {
slouken@8582
   929
            return SDL_SetError("No video mode large enough for %dx%d",
slouken@8582
   930
                                display_mode.w, display_mode.h);
slouken@8582
   931
        }
slouken@8582
   932
    } else {
slouken@8582
   933
        display_mode = display->desktop_mode;
slouken@8582
   934
    }
slouken@8582
   935
slouken@8582
   936
    /* See if there's anything left to do */
slouken@8582
   937
    current_mode = display->current_mode;
slouken@8582
   938
    if (SDL_memcmp(&display_mode, &current_mode, sizeof(display_mode)) == 0) {
slouken@8582
   939
        return 0;
slouken@8582
   940
    }
slouken@8582
   941
slouken@8582
   942
    /* Actually change the display mode */
slouken@8582
   943
    if (!_this->SetDisplayMode) {
slouken@8582
   944
        return SDL_SetError("Video driver doesn't support changing display mode");
slouken@8582
   945
    }
slouken@8582
   946
    if (_this->SetDisplayMode(_this, display, &display_mode) < 0) {
slouken@8582
   947
        return -1;
slouken@8582
   948
    }
slouken@8582
   949
    display->current_mode = display_mode;
slouken@8582
   950
    return 0;
slouken@8582
   951
}
slouken@8582
   952
slouken@8582
   953
int
slouken@8582
   954
SDL_GetWindowDisplayIndex(SDL_Window * window)
slouken@8582
   955
{
slouken@8582
   956
    int displayIndex;
slouken@8582
   957
    int i, dist;
slouken@8582
   958
    int closest = -1;
slouken@8582
   959
    int closest_dist = 0x7FFFFFFF;
slouken@8582
   960
    SDL_Point center;
slouken@8582
   961
    SDL_Point delta;
slouken@8582
   962
    SDL_Rect rect;
slouken@8582
   963
slouken@8582
   964
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
   965
slouken@8582
   966
    if (SDL_WINDOWPOS_ISUNDEFINED(window->x) ||
slouken@8582
   967
        SDL_WINDOWPOS_ISCENTERED(window->x)) {
slouken@8582
   968
        displayIndex = (window->x & 0xFFFF);
slouken@8582
   969
        if (displayIndex >= _this->num_displays) {
slouken@8582
   970
            displayIndex = 0;
slouken@8582
   971
        }
slouken@8582
   972
        return displayIndex;
slouken@8582
   973
    }
slouken@8582
   974
    if (SDL_WINDOWPOS_ISUNDEFINED(window->y) ||
slouken@8582
   975
        SDL_WINDOWPOS_ISCENTERED(window->y)) {
slouken@8582
   976
        displayIndex = (window->y & 0xFFFF);
slouken@8582
   977
        if (displayIndex >= _this->num_displays) {
slouken@8582
   978
            displayIndex = 0;
slouken@8582
   979
        }
slouken@8582
   980
        return displayIndex;
slouken@8582
   981
    }
slouken@8582
   982
slouken@8582
   983
    /* Find the display containing the window */
slouken@8582
   984
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
   985
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@8582
   986
slouken@8582
   987
        if (display->fullscreen_window == window) {
slouken@8582
   988
            return i;
slouken@8582
   989
        }
slouken@8582
   990
    }
slouken@8582
   991
    center.x = window->x + window->w / 2;
slouken@8582
   992
    center.y = window->y + window->h / 2;
slouken@8582
   993
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
   994
        SDL_GetDisplayBounds(i, &rect);
slouken@8582
   995
        if (SDL_EnclosePoints(&center, 1, &rect, NULL)) {
slouken@8582
   996
            return i;
slouken@8582
   997
        }
slouken@8582
   998
slouken@8582
   999
        delta.x = center.x - (rect.x + rect.w / 2);
slouken@8582
  1000
        delta.y = center.y - (rect.y + rect.h / 2);
slouken@8582
  1001
        dist = (delta.x*delta.x + delta.y*delta.y);
slouken@8582
  1002
        if (dist < closest_dist) {
slouken@8582
  1003
            closest = i;
slouken@8582
  1004
            closest_dist = dist;
slouken@8582
  1005
        }
slouken@8582
  1006
    }
slouken@8582
  1007
    if (closest < 0) {
slouken@8582
  1008
        SDL_SetError("Couldn't find any displays");
slouken@8582
  1009
    }
slouken@8582
  1010
    return closest;
slouken@8582
  1011
}
slouken@8582
  1012
slouken@8582
  1013
SDL_VideoDisplay *
slouken@8582
  1014
SDL_GetDisplayForWindow(SDL_Window *window)
slouken@8582
  1015
{
slouken@8582
  1016
    int displayIndex = SDL_GetWindowDisplayIndex(window);
slouken@8582
  1017
    if (displayIndex >= 0) {
slouken@8582
  1018
        return &_this->displays[displayIndex];
slouken@8582
  1019
    } else {
slouken@8582
  1020
        return NULL;
slouken@8582
  1021
    }
slouken@8582
  1022
}
slouken@8582
  1023
slouken@8582
  1024
int
slouken@8582
  1025
SDL_SetWindowDisplayMode(SDL_Window * window, const SDL_DisplayMode * mode)
slouken@8582
  1026
{
slouken@8582
  1027
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1028
slouken@8582
  1029
    if (mode) {
slouken@8582
  1030
        window->fullscreen_mode = *mode;
slouken@8582
  1031
    } else {
slouken@8582
  1032
        SDL_zero(window->fullscreen_mode);
slouken@8582
  1033
    }
slouken@8818
  1034
slouken@8818
  1035
    if (FULLSCREEN_VISIBLE(window) && (window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) {
slouken@8818
  1036
        SDL_DisplayMode fullscreen_mode;
slouken@8818
  1037
        if (SDL_GetWindowDisplayMode(window, &fullscreen_mode) == 0) {
slouken@8818
  1038
            SDL_SetDisplayModeForDisplay(SDL_GetDisplayForWindow(window), &fullscreen_mode);
slouken@8818
  1039
        }
slouken@8818
  1040
    }
slouken@8582
  1041
    return 0;
slouken@8582
  1042
}
slouken@8582
  1043
slouken@8582
  1044
int
slouken@8582
  1045
SDL_GetWindowDisplayMode(SDL_Window * window, SDL_DisplayMode * mode)
slouken@8582
  1046
{
slouken@8582
  1047
    SDL_DisplayMode fullscreen_mode;
slouken@8582
  1048
    SDL_VideoDisplay *display;
slouken@8582
  1049
slouken@8818
  1050
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8818
  1051
slouken@8582
  1052
    if (!mode) {
slouken@8818
  1053
        return SDL_InvalidParamError("mode");
slouken@8582
  1054
    }
slouken@8582
  1055
slouken@8582
  1056
    fullscreen_mode = window->fullscreen_mode;
slouken@8582
  1057
    if (!fullscreen_mode.w) {
slouken@8823
  1058
        fullscreen_mode.w = window->windowed.w;
slouken@8582
  1059
    }
slouken@8582
  1060
    if (!fullscreen_mode.h) {
slouken@8823
  1061
        fullscreen_mode.h = window->windowed.h;
slouken@8582
  1062
    }
slouken@8582
  1063
slouken@8582
  1064
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1065
slouken@8582
  1066
    /* if in desktop size mode, just return the size of the desktop */
slouken@8818
  1067
    if ((window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN_DESKTOP) {
slouken@8582
  1068
        fullscreen_mode = display->desktop_mode;
slouken@8818
  1069
    } else if (!SDL_GetClosestDisplayModeForDisplay(SDL_GetDisplayForWindow(window),
slouken@8582
  1070
                                             &fullscreen_mode,
slouken@8582
  1071
                                             &fullscreen_mode)) {
slouken@8582
  1072
        return SDL_SetError("Couldn't find display mode match");
slouken@8582
  1073
    }
slouken@8582
  1074
slouken@8582
  1075
    if (mode) {
slouken@8582
  1076
        *mode = fullscreen_mode;
slouken@8582
  1077
    }
slouken@8582
  1078
    return 0;
slouken@8582
  1079
}
slouken@8582
  1080
slouken@8582
  1081
Uint32
slouken@8582
  1082
SDL_GetWindowPixelFormat(SDL_Window * window)
slouken@8582
  1083
{
slouken@8582
  1084
    SDL_VideoDisplay *display;
slouken@8582
  1085
slouken@8582
  1086
    CHECK_WINDOW_MAGIC(window, SDL_PIXELFORMAT_UNKNOWN);
slouken@8582
  1087
slouken@8582
  1088
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1089
    return display->current_mode.format;
slouken@8582
  1090
}
slouken@8582
  1091
slouken@8582
  1092
static void
slouken@8582
  1093
SDL_RestoreMousePosition(SDL_Window *window)
slouken@8582
  1094
{
slouken@8582
  1095
    int x, y;
slouken@8582
  1096
slouken@8582
  1097
    if (window == SDL_GetMouseFocus()) {
slouken@8582
  1098
        SDL_GetMouseState(&x, &y);
slouken@8582
  1099
        SDL_WarpMouseInWindow(window, x, y);
slouken@8582
  1100
    }
slouken@8582
  1101
}
slouken@8582
  1102
slouken@8582
  1103
static void
slouken@8582
  1104
SDL_UpdateFullscreenMode(SDL_Window * window, SDL_bool fullscreen)
slouken@8582
  1105
{
slouken@8582
  1106
    SDL_VideoDisplay *display;
slouken@8582
  1107
    SDL_Window *other;
slouken@8582
  1108
slouken@8823
  1109
    CHECK_WINDOW_MAGIC(window,);
icculus@8783
  1110
alfred@9037
  1111
    /* if we are in the process of hiding don't go back to fullscreen */
alfred@9037
  1112
    if ( window->is_hiding && fullscreen )
alfred@9037
  1113
        return;
alfred@9037
  1114
    
slouken@8582
  1115
#ifdef __MACOSX__
slouken@8582
  1116
    if (Cocoa_SetWindowFullscreenSpace(window, fullscreen)) {
jorgen@8110
  1117
        window->last_fullscreen_flags = window->flags;
slouken@8582
  1118
        return;
slouken@8582
  1119
    }
slouken@8582
  1120
#endif
slouken@8582
  1121
slouken@8582
  1122
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  1123
slouken@8582
  1124
    if (fullscreen) {
slouken@8582
  1125
        /* Hide any other fullscreen windows */
slouken@8582
  1126
        if (display->fullscreen_window &&
slouken@8582
  1127
            display->fullscreen_window != window) {
slouken@8582
  1128
            SDL_MinimizeWindow(display->fullscreen_window);
slouken@8582
  1129
        }
slouken@8582
  1130
    }
slouken@8582
  1131
slouken@8582
  1132
    /* See if anything needs to be done now */
slouken@8582
  1133
    if ((display->fullscreen_window == window) == fullscreen) {
jorgen@8110
  1134
        if ((window->last_fullscreen_flags & FULLSCREEN_MASK) == (window->flags & FULLSCREEN_MASK)) {
jorgen@8110
  1135
            return;
jorgen@8110
  1136
        }
slouken@8582
  1137
    }
slouken@8582
  1138
slouken@8582
  1139
    /* See if there are any fullscreen windows */
slouken@8582
  1140
    for (other = _this->windows; other; other = other->next) {
slouken@8582
  1141
        SDL_bool setDisplayMode = SDL_FALSE;
slouken@8582
  1142
slouken@8582
  1143
        if (other == window) {
slouken@8582
  1144
            setDisplayMode = fullscreen;
slouken@8582
  1145
        } else if (FULLSCREEN_VISIBLE(other) &&
slouken@8582
  1146
                   SDL_GetDisplayForWindow(other) == display) {
slouken@8582
  1147
            setDisplayMode = SDL_TRUE;
slouken@8582
  1148
        }
slouken@8582
  1149
slouken@8582
  1150
        if (setDisplayMode) {
slouken@8582
  1151
            SDL_DisplayMode fullscreen_mode;
slouken@8582
  1152
icculus@8656
  1153
            SDL_zero(fullscreen_mode);
icculus@8656
  1154
slouken@8582
  1155
            if (SDL_GetWindowDisplayMode(other, &fullscreen_mode) == 0) {
slouken@8582
  1156
                SDL_bool resized = SDL_TRUE;
slouken@8582
  1157
slouken@8582
  1158
                if (other->w == fullscreen_mode.w && other->h == fullscreen_mode.h) {
slouken@8582
  1159
                    resized = SDL_FALSE;
slouken@8582
  1160
                }
slouken@8582
  1161
slouken@8582
  1162
                /* only do the mode change if we want exclusive fullscreen */
slouken@8582
  1163
                if ((window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) {
slouken@8582
  1164
                    SDL_SetDisplayModeForDisplay(display, &fullscreen_mode);
slouken@8582
  1165
                } else {
slouken@8582
  1166
                    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@8582
  1167
                }
slouken@8582
  1168
slouken@8582
  1169
                if (_this->SetWindowFullscreen) {
slouken@8582
  1170
                    _this->SetWindowFullscreen(_this, other, display, SDL_TRUE);
slouken@8582
  1171
                }
slouken@8582
  1172
                display->fullscreen_window = other;
slouken@8582
  1173
slouken@8582
  1174
                /* Generate a mode change event here */
slouken@8582
  1175
                if (resized) {
slouken@8582
  1176
                    SDL_SendWindowEvent(other, SDL_WINDOWEVENT_RESIZED,
slouken@8582
  1177
                                        fullscreen_mode.w, fullscreen_mode.h);
slouken@8582
  1178
                } else {
slouken@8582
  1179
                    SDL_OnWindowResized(other);
slouken@8582
  1180
                }
slouken@8582
  1181
slouken@8582
  1182
                SDL_RestoreMousePosition(other);
jorgen@8110
  1183
jorgen@8110
  1184
                window->last_fullscreen_flags = window->flags;
slouken@8582
  1185
                return;
slouken@8582
  1186
            }
slouken@8582
  1187
        }
slouken@8582
  1188
    }
slouken@8582
  1189
slouken@8582
  1190
    /* Nope, restore the desktop mode */
slouken@8582
  1191
    SDL_SetDisplayModeForDisplay(display, NULL);
slouken@8582
  1192
slouken@8582
  1193
    if (_this->SetWindowFullscreen) {
slouken@8582
  1194
        _this->SetWindowFullscreen(_this, window, display, SDL_FALSE);
slouken@8582
  1195
    }
slouken@8582
  1196
    display->fullscreen_window = NULL;
slouken@8582
  1197
slouken@8582
  1198
    /* Generate a mode change event here */
slouken@8582
  1199
    SDL_OnWindowResized(window);
slouken@8582
  1200
slouken@8582
  1201
    /* Restore the cursor position */
slouken@8582
  1202
    SDL_RestoreMousePosition(window);
jorgen@8110
  1203
jorgen@8110
  1204
    window->last_fullscreen_flags = window->flags;
slouken@8582
  1205
}
slouken@8582
  1206
slouken@8582
  1207
#define CREATE_FLAGS \
slouken@8582
  1208
    (SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI)
slouken@8582
  1209
slouken@8582
  1210
static void
slouken@8582
  1211
SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
slouken@8582
  1212
{
slouken@8582
  1213
    window->windowed.x = window->x;
slouken@8582
  1214
    window->windowed.y = window->y;
slouken@8582
  1215
    window->windowed.w = window->w;
slouken@8582
  1216
    window->windowed.h = window->h;
slouken@8582
  1217
slouken@8582
  1218
    if (flags & SDL_WINDOW_MAXIMIZED) {
slouken@8582
  1219
        SDL_MaximizeWindow(window);
slouken@8582
  1220
    }
slouken@8582
  1221
    if (flags & SDL_WINDOW_MINIMIZED) {
slouken@8582
  1222
        SDL_MinimizeWindow(window);
slouken@8582
  1223
    }
slouken@8582
  1224
    if (flags & SDL_WINDOW_FULLSCREEN) {
slouken@8582
  1225
        SDL_SetWindowFullscreen(window, flags);
slouken@8582
  1226
    }
slouken@8582
  1227
    if (flags & SDL_WINDOW_INPUT_GRABBED) {
slouken@8582
  1228
        SDL_SetWindowGrab(window, SDL_TRUE);
slouken@8582
  1229
    }
slouken@8582
  1230
    if (!(flags & SDL_WINDOW_HIDDEN)) {
slouken@8582
  1231
        SDL_ShowWindow(window);
slouken@8582
  1232
    }
slouken@8582
  1233
}
slouken@8582
  1234
slouken@8582
  1235
SDL_Window *
slouken@8582
  1236
SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
slouken@8582
  1237
{
slouken@8582
  1238
    SDL_Window *window;
slouken@8582
  1239
    const char *hint;
slouken@8582
  1240
slouken@8582
  1241
    if (!_this) {
slouken@8582
  1242
        /* Initialize the video system if needed */
slouken@8582
  1243
        if (SDL_VideoInit(NULL) < 0) {
slouken@8582
  1244
            return NULL;
slouken@8582
  1245
        }
slouken@8582
  1246
    }
slouken@8582
  1247
slouken@8582
  1248
    /* Some platforms can't create zero-sized windows */
slouken@8582
  1249
    if (w < 1) {
slouken@8582
  1250
        w = 1;
slouken@8582
  1251
    }
slouken@8582
  1252
    if (h < 1) {
slouken@8582
  1253
        h = 1;
slouken@8582
  1254
    }
slouken@8582
  1255
slouken@8582
  1256
    /* Some platforms have OpenGL enabled by default */
gabomdq@8833
  1257
#if (SDL_VIDEO_OPENGL && __MACOSX__) || __IPHONEOS__ || __ANDROID__ || __NACL__
slouken@8582
  1258
    flags |= SDL_WINDOW_OPENGL;
slouken@8582
  1259
#endif
slouken@8582
  1260
    if (flags & SDL_WINDOW_OPENGL) {
slouken@8582
  1261
        if (!_this->GL_CreateContext) {
slouken@8582
  1262
            SDL_SetError("No OpenGL support in video driver");
slouken@8582
  1263
            return NULL;
slouken@8582
  1264
        }
slouken@8582
  1265
        if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@8582
  1266
            return NULL;
slouken@8582
  1267
        }
slouken@8582
  1268
    }
slouken@8582
  1269
slouken@8582
  1270
    /* Unless the user has specified the high-DPI disabling hint, respect the
slouken@8582
  1271
     * SDL_WINDOW_ALLOW_HIGHDPI flag.
slouken@8582
  1272
     */
slouken@8582
  1273
    if (flags & SDL_WINDOW_ALLOW_HIGHDPI) {
slouken@8582
  1274
        hint = SDL_GetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED);
slouken@8582
  1275
        if (hint && SDL_atoi(hint) > 0) {
slouken@8582
  1276
            flags &= ~SDL_WINDOW_ALLOW_HIGHDPI;
slouken@8582
  1277
        }
slouken@8582
  1278
    }
slouken@8582
  1279
slouken@8582
  1280
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@8582
  1281
    if (!window) {
slouken@8582
  1282
        SDL_OutOfMemory();
slouken@8582
  1283
        return NULL;
slouken@8582
  1284
    }
slouken@8582
  1285
    window->magic = &_this->window_magic;
slouken@8582
  1286
    window->id = _this->next_object_id++;
slouken@8582
  1287
    window->x = x;
slouken@8582
  1288
    window->y = y;
slouken@8582
  1289
    window->w = w;
slouken@8582
  1290
    window->h = h;
slouken@8582
  1291
    if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISUNDEFINED(y) ||
slouken@8582
  1292
        SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1293
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@8582
  1294
        int displayIndex;
slouken@8582
  1295
        SDL_Rect bounds;
slouken@8582
  1296
slouken@8582
  1297
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@8582
  1298
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@8582
  1299
        if (SDL_WINDOWPOS_ISUNDEFINED(x) || SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@8582
  1300
            window->x = bounds.x + (bounds.w - w) / 2;
slouken@8582
  1301
        }
slouken@8582
  1302
        if (SDL_WINDOWPOS_ISUNDEFINED(y) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1303
            window->y = bounds.y + (bounds.h - h) / 2;
slouken@8582
  1304
        }
slouken@8582
  1305
    }
slouken@8582
  1306
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
jorgen@8110
  1307
    window->last_fullscreen_flags = window->flags;
slouken@8582
  1308
    window->brightness = 1.0f;
slouken@8582
  1309
    window->next = _this->windows;
jorgen@8112
  1310
    window->is_destroying = SDL_FALSE;
slouken@8582
  1311
slouken@8582
  1312
    if (_this->windows) {
slouken@8582
  1313
        _this->windows->prev = window;
slouken@8582
  1314
    }
slouken@8582
  1315
    _this->windows = window;
slouken@8582
  1316
slouken@8582
  1317
    if (_this->CreateWindow && _this->CreateWindow(_this, window) < 0) {
slouken@8582
  1318
        SDL_DestroyWindow(window);
slouken@8582
  1319
        return NULL;
slouken@8582
  1320
    }
slouken@8582
  1321
slouken@8582
  1322
    if (title) {
slouken@8582
  1323
        SDL_SetWindowTitle(window, title);
slouken@8582
  1324
    }
slouken@8582
  1325
    SDL_FinishWindowCreation(window, flags);
slouken@8582
  1326
slouken@8582
  1327
    /* If the window was created fullscreen, make sure the mode code matches */
slouken@8582
  1328
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@8582
  1329
slouken@8582
  1330
    return window;
slouken@8582
  1331
}
slouken@8582
  1332
slouken@8582
  1333
SDL_Window *
slouken@8582
  1334
SDL_CreateWindowFrom(const void *data)
slouken@8582
  1335
{
slouken@8582
  1336
    SDL_Window *window;
slouken@8582
  1337
slouken@8582
  1338
    if (!_this) {
slouken@8582
  1339
        SDL_UninitializedVideo();
slouken@8582
  1340
        return NULL;
slouken@8582
  1341
    }
slouken@9163
  1342
    if (!_this->CreateWindowFrom) {
slouken@9163
  1343
        SDL_Unsupported();
slouken@9163
  1344
        return NULL;
slouken@9163
  1345
    }
slouken@8582
  1346
    window = (SDL_Window *)SDL_calloc(1, sizeof(*window));
slouken@8582
  1347
    if (!window) {
slouken@8582
  1348
        SDL_OutOfMemory();
slouken@8582
  1349
        return NULL;
slouken@8582
  1350
    }
slouken@8582
  1351
    window->magic = &_this->window_magic;
slouken@8582
  1352
    window->id = _this->next_object_id++;
slouken@8582
  1353
    window->flags = SDL_WINDOW_FOREIGN;
jorgen@8110
  1354
    window->last_fullscreen_flags = window->flags;
jorgen@8112
  1355
    window->is_destroying = SDL_FALSE;
slouken@8582
  1356
    window->brightness = 1.0f;
slouken@8582
  1357
    window->next = _this->windows;
slouken@8582
  1358
    if (_this->windows) {
slouken@8582
  1359
        _this->windows->prev = window;
slouken@8582
  1360
    }
slouken@8582
  1361
    _this->windows = window;
slouken@8582
  1362
slouken@9163
  1363
    if (_this->CreateWindowFrom(_this, window, data) < 0) {
slouken@8582
  1364
        SDL_DestroyWindow(window);
slouken@8582
  1365
        return NULL;
slouken@8582
  1366
    }
slouken@8582
  1367
    return window;
slouken@8582
  1368
}
slouken@8582
  1369
slouken@8582
  1370
int
slouken@8582
  1371
SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
slouken@8582
  1372
{
slouken@8582
  1373
    char *title = window->title;
slouken@8582
  1374
    SDL_Surface *icon = window->icon;
slouken@8906
  1375
    SDL_bool loaded_opengl = SDL_FALSE;
slouken@8582
  1376
slouken@8582
  1377
    if ((flags & SDL_WINDOW_OPENGL) && !_this->GL_CreateContext) {
slouken@8582
  1378
        return SDL_SetError("No OpenGL support in video driver");
slouken@8582
  1379
    }
slouken@8582
  1380
slouken@8582
  1381
    if (window->flags & SDL_WINDOW_FOREIGN) {
slouken@8582
  1382
        /* Can't destroy and re-create foreign windows, hrm */
slouken@8582
  1383
        flags |= SDL_WINDOW_FOREIGN;
slouken@8582
  1384
    } else {
slouken@8582
  1385
        flags &= ~SDL_WINDOW_FOREIGN;
slouken@8582
  1386
    }
slouken@8582
  1387
slouken@8582
  1388
    /* Restore video mode, etc. */
slouken@8582
  1389
    SDL_HideWindow(window);
slouken@8582
  1390
slouken@8582
  1391
    /* Tear down the old native window */
slouken@8582
  1392
    if (window->surface) {
slouken@8582
  1393
        window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  1394
        SDL_FreeSurface(window->surface);
slouken@8582
  1395
    }
slouken@8582
  1396
    if (_this->DestroyWindowFramebuffer) {
slouken@8582
  1397
        _this->DestroyWindowFramebuffer(_this, window);
slouken@8582
  1398
    }
slouken@8582
  1399
    if (_this->DestroyWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@8582
  1400
        _this->DestroyWindow(_this, window);
slouken@8582
  1401
    }
slouken@8582
  1402
slouken@8582
  1403
    if ((window->flags & SDL_WINDOW_OPENGL) != (flags & SDL_WINDOW_OPENGL)) {
slouken@8582
  1404
        if (flags & SDL_WINDOW_OPENGL) {
slouken@8582
  1405
            if (SDL_GL_LoadLibrary(NULL) < 0) {
slouken@8582
  1406
                return -1;
slouken@8582
  1407
            }
slouken@8906
  1408
            loaded_opengl = SDL_TRUE;
slouken@8582
  1409
        } else {
slouken@8582
  1410
            SDL_GL_UnloadLibrary();
slouken@8582
  1411
        }
slouken@8582
  1412
    }
slouken@8582
  1413
slouken@8582
  1414
    window->title = NULL;
slouken@8582
  1415
    window->icon = NULL;
slouken@8582
  1416
    window->flags = ((flags & CREATE_FLAGS) | SDL_WINDOW_HIDDEN);
jorgen@8110
  1417
    window->last_fullscreen_flags = window->flags;
jorgen@8112
  1418
    window->is_destroying = SDL_FALSE;
slouken@8582
  1419
slouken@8582
  1420
    if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
slouken@8582
  1421
        if (_this->CreateWindow(_this, window) < 0) {
slouken@8906
  1422
            if (loaded_opengl) {
slouken@8582
  1423
                SDL_GL_UnloadLibrary();
slouken@8906
  1424
                window->flags &= ~SDL_WINDOW_OPENGL;
slouken@8582
  1425
            }
slouken@8582
  1426
            return -1;
slouken@8582
  1427
        }
slouken@8582
  1428
    }
slouken@8708
  1429
    if (flags & SDL_WINDOW_FOREIGN) {
slouken@8708
  1430
        window->flags |= SDL_WINDOW_FOREIGN;
slouken@8708
  1431
    }
slouken@8582
  1432
slouken@8582
  1433
    if (title) {
slouken@8582
  1434
        SDL_SetWindowTitle(window, title);
slouken@8582
  1435
        SDL_free(title);
slouken@8582
  1436
    }
slouken@8582
  1437
    if (icon) {
slouken@8582
  1438
        SDL_SetWindowIcon(window, icon);
slouken@8582
  1439
        SDL_FreeSurface(icon);
slouken@8582
  1440
    }
icculus@8931
  1441
icculus@8953
  1442
    if (window->hit_test) {
icculus@8935
  1443
        _this->SetWindowHitTest(window, SDL_TRUE);
icculus@8931
  1444
    }
icculus@8931
  1445
slouken@8582
  1446
    SDL_FinishWindowCreation(window, flags);
slouken@8582
  1447
slouken@8582
  1448
    return 0;
slouken@8582
  1449
}
slouken@8582
  1450
slouken@8582
  1451
Uint32
slouken@8582
  1452
SDL_GetWindowID(SDL_Window * window)
slouken@8582
  1453
{
slouken@8582
  1454
    CHECK_WINDOW_MAGIC(window, 0);
slouken@8582
  1455
slouken@8582
  1456
    return window->id;
slouken@8582
  1457
}
slouken@8582
  1458
slouken@8582
  1459
SDL_Window *
slouken@8582
  1460
SDL_GetWindowFromID(Uint32 id)
slouken@8582
  1461
{
slouken@8582
  1462
    SDL_Window *window;
slouken@8582
  1463
slouken@8582
  1464
    if (!_this) {
slouken@8582
  1465
        return NULL;
slouken@8582
  1466
    }
slouken@8582
  1467
    for (window = _this->windows; window; window = window->next) {
slouken@8582
  1468
        if (window->id == id) {
slouken@8582
  1469
            return window;
slouken@8582
  1470
        }
slouken@8582
  1471
    }
slouken@8582
  1472
    return NULL;
slouken@8582
  1473
}
slouken@8582
  1474
slouken@8582
  1475
Uint32
slouken@8582
  1476
SDL_GetWindowFlags(SDL_Window * window)
slouken@8582
  1477
{
slouken@8582
  1478
    CHECK_WINDOW_MAGIC(window, 0);
slouken@8582
  1479
slouken@8582
  1480
    return window->flags;
slouken@8582
  1481
}
slouken@8582
  1482
slouken@8582
  1483
void
slouken@8582
  1484
SDL_SetWindowTitle(SDL_Window * window, const char *title)
slouken@8582
  1485
{
slouken@8818
  1486
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1487
slouken@8582
  1488
    if (title == window->title) {
slouken@8582
  1489
        return;
slouken@8582
  1490
    }
slouken@8582
  1491
    SDL_free(window->title);
slouken@8582
  1492
    if (title && *title) {
slouken@8582
  1493
        window->title = SDL_strdup(title);
slouken@8582
  1494
    } else {
slouken@8582
  1495
        window->title = NULL;
slouken@8582
  1496
    }
slouken@8582
  1497
slouken@8582
  1498
    if (_this->SetWindowTitle) {
slouken@8582
  1499
        _this->SetWindowTitle(_this, window);
slouken@8582
  1500
    }
slouken@8582
  1501
}
slouken@8582
  1502
slouken@8582
  1503
const char *
slouken@8582
  1504
SDL_GetWindowTitle(SDL_Window * window)
slouken@8582
  1505
{
slouken@8582
  1506
    CHECK_WINDOW_MAGIC(window, "");
slouken@8582
  1507
slouken@8582
  1508
    return window->title ? window->title : "";
slouken@8582
  1509
}
slouken@8582
  1510
slouken@8582
  1511
void
slouken@8582
  1512
SDL_SetWindowIcon(SDL_Window * window, SDL_Surface * icon)
slouken@8582
  1513
{
slouken@8818
  1514
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1515
slouken@8582
  1516
    if (!icon) {
slouken@8582
  1517
        return;
slouken@8582
  1518
    }
slouken@8582
  1519
slouken@8582
  1520
    SDL_FreeSurface(window->icon);
slouken@8582
  1521
slouken@8582
  1522
    /* Convert the icon into ARGB8888 */
slouken@8582
  1523
    window->icon = SDL_ConvertSurfaceFormat(icon, SDL_PIXELFORMAT_ARGB8888, 0);
slouken@8582
  1524
    if (!window->icon) {
slouken@8582
  1525
        return;
slouken@8582
  1526
    }
slouken@8582
  1527
slouken@8582
  1528
    if (_this->SetWindowIcon) {
slouken@8582
  1529
        _this->SetWindowIcon(_this, window, window->icon);
slouken@8582
  1530
    }
slouken@8582
  1531
}
slouken@8582
  1532
slouken@8582
  1533
void*
slouken@8582
  1534
SDL_SetWindowData(SDL_Window * window, const char *name, void *userdata)
slouken@8582
  1535
{
slouken@8582
  1536
    SDL_WindowUserData *prev, *data;
slouken@8582
  1537
slouken@8582
  1538
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1539
slouken@8582
  1540
    /* Input validation */
slouken@8582
  1541
    if (name == NULL || name[0] == '\0') {
slouken@8582
  1542
      SDL_InvalidParamError("name");
slouken@8582
  1543
      return NULL;
slouken@8582
  1544
    }
slouken@8582
  1545
slouken@8582
  1546
    /* See if the named data already exists */
slouken@8582
  1547
    prev = NULL;
slouken@8582
  1548
    for (data = window->data; data; prev = data, data = data->next) {
slouken@8582
  1549
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@8582
  1550
            void *last_value = data->data;
slouken@8582
  1551
slouken@8582
  1552
            if (userdata) {
slouken@8582
  1553
                /* Set the new value */
slouken@8582
  1554
                data->data = userdata;
slouken@8582
  1555
            } else {
slouken@8582
  1556
                /* Delete this value */
slouken@8582
  1557
                if (prev) {
slouken@8582
  1558
                    prev->next = data->next;
slouken@8582
  1559
                } else {
slouken@8582
  1560
                    window->data = data->next;
slouken@8582
  1561
                }
slouken@8582
  1562
                SDL_free(data->name);
slouken@8582
  1563
                SDL_free(data);
slouken@8582
  1564
            }
slouken@8582
  1565
            return last_value;
slouken@8582
  1566
        }
slouken@8582
  1567
    }
slouken@8582
  1568
slouken@8582
  1569
    /* Add new data to the window */
slouken@8582
  1570
    if (userdata) {
slouken@8582
  1571
        data = (SDL_WindowUserData *)SDL_malloc(sizeof(*data));
slouken@8582
  1572
        data->name = SDL_strdup(name);
slouken@8582
  1573
        data->data = userdata;
slouken@8582
  1574
        data->next = window->data;
slouken@8582
  1575
        window->data = data;
slouken@8582
  1576
    }
slouken@8582
  1577
    return NULL;
slouken@8582
  1578
}
slouken@8582
  1579
slouken@8582
  1580
void *
slouken@8582
  1581
SDL_GetWindowData(SDL_Window * window, const char *name)
slouken@8582
  1582
{
slouken@8582
  1583
    SDL_WindowUserData *data;
slouken@8582
  1584
slouken@8582
  1585
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1586
slouken@8582
  1587
    /* Input validation */
slouken@8582
  1588
    if (name == NULL || name[0] == '\0') {
slouken@8582
  1589
      SDL_InvalidParamError("name");
slouken@8582
  1590
      return NULL;
slouken@8582
  1591
    }
slouken@8582
  1592
slouken@8582
  1593
    for (data = window->data; data; data = data->next) {
slouken@8582
  1594
        if (data->name && SDL_strcmp(data->name, name) == 0) {
slouken@8582
  1595
            return data->data;
slouken@8582
  1596
        }
slouken@8582
  1597
    }
slouken@8582
  1598
    return NULL;
slouken@8582
  1599
}
slouken@8582
  1600
slouken@8582
  1601
void
slouken@8582
  1602
SDL_SetWindowPosition(SDL_Window * window, int x, int y)
slouken@8582
  1603
{
slouken@8818
  1604
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1605
slouken@8582
  1606
    if (SDL_WINDOWPOS_ISCENTERED(x) || SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1607
        SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
slouken@8582
  1608
        int displayIndex;
slouken@8582
  1609
        SDL_Rect bounds;
slouken@8582
  1610
icculus@8655
  1611
        SDL_zero(bounds);
icculus@8655
  1612
slouken@8582
  1613
        displayIndex = SDL_GetIndexOfDisplay(display);
slouken@8582
  1614
        SDL_GetDisplayBounds(displayIndex, &bounds);
slouken@8582
  1615
        if (SDL_WINDOWPOS_ISCENTERED(x)) {
slouken@8582
  1616
            x = bounds.x + (bounds.w - window->w) / 2;
slouken@8582
  1617
        }
slouken@8582
  1618
        if (SDL_WINDOWPOS_ISCENTERED(y)) {
slouken@8582
  1619
            y = bounds.y + (bounds.h - window->h) / 2;
slouken@8582
  1620
        }
slouken@8582
  1621
    }
slouken@8582
  1622
slouken@8582
  1623
    if ((window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1624
        if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@8582
  1625
            window->windowed.x = x;
slouken@8582
  1626
        }
slouken@8582
  1627
        if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@8582
  1628
            window->windowed.y = y;
slouken@8582
  1629
        }
slouken@8582
  1630
    } else {
slouken@8582
  1631
        if (!SDL_WINDOWPOS_ISUNDEFINED(x)) {
slouken@8582
  1632
            window->x = x;
slouken@8582
  1633
        }
slouken@8582
  1634
        if (!SDL_WINDOWPOS_ISUNDEFINED(y)) {
slouken@8582
  1635
            window->y = y;
slouken@8582
  1636
        }
slouken@8582
  1637
slouken@8582
  1638
        if (_this->SetWindowPosition) {
slouken@8582
  1639
            _this->SetWindowPosition(_this, window);
slouken@8582
  1640
        }
slouken@8582
  1641
        SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
slouken@8582
  1642
    }
slouken@8582
  1643
}
slouken@8582
  1644
slouken@8582
  1645
void
slouken@8582
  1646
SDL_GetWindowPosition(SDL_Window * window, int *x, int *y)
slouken@8582
  1647
{
slouken@8818
  1648
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1649
slouken@8582
  1650
    /* Fullscreen windows are always at their display's origin */
slouken@8582
  1651
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@8582
  1652
        if (x) {
slouken@8582
  1653
            *x = 0;
slouken@8582
  1654
        }
slouken@8582
  1655
        if (y) {
slouken@8582
  1656
            *y = 0;
slouken@8582
  1657
        }
slouken@8582
  1658
    } else {
slouken@8582
  1659
        if (x) {
slouken@8582
  1660
            *x = window->x;
slouken@8582
  1661
        }
slouken@8582
  1662
        if (y) {
slouken@8582
  1663
            *y = window->y;
slouken@8582
  1664
        }
slouken@8582
  1665
    }
slouken@8582
  1666
}
slouken@8582
  1667
slouken@8582
  1668
void
slouken@8582
  1669
SDL_SetWindowBordered(SDL_Window * window, SDL_bool bordered)
slouken@8582
  1670
{
slouken@8818
  1671
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1672
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1673
        const int want = (bordered != SDL_FALSE);  /* normalize the flag. */
slouken@8582
  1674
        const int have = ((window->flags & SDL_WINDOW_BORDERLESS) == 0);
slouken@8582
  1675
        if ((want != have) && (_this->SetWindowBordered)) {
slouken@8582
  1676
            if (want) {
slouken@8582
  1677
                window->flags &= ~SDL_WINDOW_BORDERLESS;
slouken@8582
  1678
            } else {
slouken@8582
  1679
                window->flags |= SDL_WINDOW_BORDERLESS;
slouken@8582
  1680
            }
slouken@8582
  1681
            _this->SetWindowBordered(_this, window, (SDL_bool) want);
slouken@8582
  1682
        }
slouken@8582
  1683
    }
slouken@8582
  1684
}
slouken@8582
  1685
slouken@8582
  1686
void
slouken@8582
  1687
SDL_SetWindowSize(SDL_Window * window, int w, int h)
slouken@8582
  1688
{
slouken@8818
  1689
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1690
    if (w <= 0) {
slouken@8582
  1691
        SDL_InvalidParamError("w");
slouken@8582
  1692
        return;
slouken@8582
  1693
    }
slouken@8582
  1694
    if (h <= 0) {
slouken@8582
  1695
        SDL_InvalidParamError("h");
slouken@8582
  1696
        return;
slouken@8582
  1697
    }
slouken@8582
  1698
slouken@8582
  1699
    /* Make sure we don't exceed any window size limits */
slouken@8582
  1700
    if (window->min_w && w < window->min_w)
slouken@8582
  1701
    {
slouken@8582
  1702
        w = window->min_w;
slouken@8582
  1703
    }
slouken@8582
  1704
    if (window->max_w && w > window->max_w)
slouken@8582
  1705
    {
slouken@8582
  1706
        w = window->max_w;
slouken@8582
  1707
    }
slouken@8582
  1708
    if (window->min_h && h < window->min_h)
slouken@8582
  1709
    {
slouken@8582
  1710
        h = window->min_h;
slouken@8582
  1711
    }
slouken@8582
  1712
    if (window->max_h && h > window->max_h)
slouken@8582
  1713
    {
slouken@8582
  1714
        h = window->max_h;
slouken@8582
  1715
    }
slouken@8582
  1716
slouken@8823
  1717
    window->windowed.w = w;
slouken@8823
  1718
    window->windowed.h = h;
slouken@8823
  1719
slouken@8582
  1720
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
slouken@8818
  1721
        if (FULLSCREEN_VISIBLE(window) && (window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) != SDL_WINDOW_FULLSCREEN_DESKTOP) {
slouken@8823
  1722
            window->last_fullscreen_flags = 0;
slouken@8823
  1723
            SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@8818
  1724
        }
slouken@8582
  1725
    } else {
slouken@8582
  1726
        window->w = w;
slouken@8582
  1727
        window->h = h;
slouken@8582
  1728
        if (_this->SetWindowSize) {
slouken@8582
  1729
            _this->SetWindowSize(_this, window);
slouken@8582
  1730
        }
slouken@8582
  1731
        if (window->w == w && window->h == h) {
slouken@8582
  1732
            /* We didn't get a SDL_WINDOWEVENT_RESIZED event (by design) */
slouken@8582
  1733
            SDL_OnWindowResized(window);
slouken@8582
  1734
        }
slouken@8582
  1735
    }
slouken@8582
  1736
}
slouken@8582
  1737
slouken@8582
  1738
void
slouken@8582
  1739
SDL_GetWindowSize(SDL_Window * window, int *w, int *h)
slouken@8582
  1740
{
slouken@8818
  1741
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1742
    if (w) {
slouken@8582
  1743
        *w = window->w;
slouken@8582
  1744
    }
slouken@8582
  1745
    if (h) {
slouken@8582
  1746
        *h = window->h;
slouken@8582
  1747
    }
slouken@8582
  1748
}
slouken@8582
  1749
slouken@8582
  1750
void
slouken@8582
  1751
SDL_SetWindowMinimumSize(SDL_Window * window, int min_w, int min_h)
slouken@8582
  1752
{
slouken@8818
  1753
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1754
    if (min_w <= 0) {
slouken@8582
  1755
        SDL_InvalidParamError("min_w");
slouken@8582
  1756
        return;
slouken@8582
  1757
    }
slouken@8582
  1758
    if (min_h <= 0) {
slouken@8582
  1759
        SDL_InvalidParamError("min_h");
slouken@8582
  1760
        return;
slouken@8582
  1761
    }
slouken@8582
  1762
slouken@8582
  1763
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1764
        window->min_w = min_w;
slouken@8582
  1765
        window->min_h = min_h;
slouken@8582
  1766
        if (_this->SetWindowMinimumSize) {
slouken@8582
  1767
            _this->SetWindowMinimumSize(_this, window);
slouken@8582
  1768
        }
slouken@8582
  1769
        /* Ensure that window is not smaller than minimal size */
slouken@8582
  1770
        SDL_SetWindowSize(window, SDL_max(window->w, window->min_w), SDL_max(window->h, window->min_h));
slouken@8582
  1771
    }
slouken@8582
  1772
}
slouken@8582
  1773
slouken@8582
  1774
void
slouken@8582
  1775
SDL_GetWindowMinimumSize(SDL_Window * window, int *min_w, int *min_h)
slouken@8582
  1776
{
slouken@8818
  1777
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1778
    if (min_w) {
slouken@8582
  1779
        *min_w = window->min_w;
slouken@8582
  1780
    }
slouken@8582
  1781
    if (min_h) {
slouken@8582
  1782
        *min_h = window->min_h;
slouken@8582
  1783
    }
slouken@8582
  1784
}
slouken@8582
  1785
slouken@8582
  1786
void
slouken@8582
  1787
SDL_SetWindowMaximumSize(SDL_Window * window, int max_w, int max_h)
slouken@8582
  1788
{
slouken@8818
  1789
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1790
    if (max_w <= 0) {
slouken@8582
  1791
        SDL_InvalidParamError("max_w");
slouken@8582
  1792
        return;
slouken@8582
  1793
    }
slouken@8582
  1794
    if (max_h <= 0) {
slouken@8582
  1795
        SDL_InvalidParamError("max_h");
slouken@8582
  1796
        return;
slouken@8582
  1797
    }
slouken@8582
  1798
slouken@8582
  1799
    if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
slouken@8582
  1800
        window->max_w = max_w;
slouken@8582
  1801
        window->max_h = max_h;
slouken@8582
  1802
        if (_this->SetWindowMaximumSize) {
slouken@8582
  1803
            _this->SetWindowMaximumSize(_this, window);
slouken@8582
  1804
        }
slouken@8582
  1805
        /* Ensure that window is not larger than maximal size */
slouken@8582
  1806
        SDL_SetWindowSize(window, SDL_min(window->w, window->max_w), SDL_min(window->h, window->max_h));
slouken@8582
  1807
    }
slouken@8582
  1808
}
slouken@8582
  1809
slouken@8582
  1810
void
slouken@8582
  1811
SDL_GetWindowMaximumSize(SDL_Window * window, int *max_w, int *max_h)
slouken@8582
  1812
{
slouken@8818
  1813
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1814
    if (max_w) {
slouken@8582
  1815
        *max_w = window->max_w;
slouken@8582
  1816
    }
slouken@8582
  1817
    if (max_h) {
slouken@8582
  1818
        *max_h = window->max_h;
slouken@8582
  1819
    }
slouken@8582
  1820
}
slouken@8582
  1821
slouken@8582
  1822
void
slouken@8582
  1823
SDL_ShowWindow(SDL_Window * window)
slouken@8582
  1824
{
slouken@8818
  1825
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1826
slouken@8582
  1827
    if (window->flags & SDL_WINDOW_SHOWN) {
slouken@8582
  1828
        return;
slouken@8582
  1829
    }
slouken@8582
  1830
slouken@8582
  1831
    if (_this->ShowWindow) {
slouken@8582
  1832
        _this->ShowWindow(_this, window);
slouken@8582
  1833
    }
slouken@8582
  1834
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SHOWN, 0, 0);
slouken@8582
  1835
}
slouken@8582
  1836
slouken@8582
  1837
void
slouken@8582
  1838
SDL_HideWindow(SDL_Window * window)
slouken@8582
  1839
{
slouken@8818
  1840
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1841
slouken@8582
  1842
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@8582
  1843
        return;
slouken@8582
  1844
    }
slouken@8582
  1845
alfred@9037
  1846
	window->is_hiding = SDL_TRUE;
slouken@8582
  1847
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  1848
slouken@8582
  1849
    if (_this->HideWindow) {
slouken@8582
  1850
        _this->HideWindow(_this, window);
slouken@8582
  1851
    }
alfred@9037
  1852
	window->is_hiding = SDL_FALSE;
slouken@8582
  1853
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);
slouken@8582
  1854
}
slouken@8582
  1855
slouken@8582
  1856
void
slouken@8582
  1857
SDL_RaiseWindow(SDL_Window * window)
slouken@8582
  1858
{
slouken@8818
  1859
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1860
slouken@8582
  1861
    if (!(window->flags & SDL_WINDOW_SHOWN)) {
slouken@8582
  1862
        return;
slouken@8582
  1863
    }
slouken@8582
  1864
    if (_this->RaiseWindow) {
slouken@8582
  1865
        _this->RaiseWindow(_this, window);
slouken@8582
  1866
    }
slouken@8582
  1867
}
slouken@8582
  1868
slouken@8582
  1869
void
slouken@8582
  1870
SDL_MaximizeWindow(SDL_Window * window)
slouken@8582
  1871
{
slouken@8818
  1872
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1873
slouken@8582
  1874
    if (window->flags & SDL_WINDOW_MAXIMIZED) {
slouken@8582
  1875
        return;
slouken@8582
  1876
    }
slouken@8582
  1877
slouken@8582
  1878
    /* !!! FIXME: should this check if the window is resizable? */
slouken@8582
  1879
slouken@8582
  1880
    if (_this->MaximizeWindow) {
slouken@8582
  1881
        _this->MaximizeWindow(_this, window);
slouken@8582
  1882
    }
slouken@8582
  1883
}
slouken@8582
  1884
slouken@8582
  1885
void
slouken@8582
  1886
SDL_MinimizeWindow(SDL_Window * window)
slouken@8582
  1887
{
slouken@8818
  1888
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1889
slouken@8582
  1890
    if (window->flags & SDL_WINDOW_MINIMIZED) {
slouken@8582
  1891
        return;
slouken@8582
  1892
    }
slouken@8582
  1893
slouken@8582
  1894
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  1895
slouken@8582
  1896
    if (_this->MinimizeWindow) {
slouken@8582
  1897
        _this->MinimizeWindow(_this, window);
slouken@8582
  1898
    }
slouken@8582
  1899
}
slouken@8582
  1900
slouken@8582
  1901
void
slouken@8582
  1902
SDL_RestoreWindow(SDL_Window * window)
slouken@8582
  1903
{
slouken@8818
  1904
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  1905
slouken@8582
  1906
    if (!(window->flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_MINIMIZED))) {
slouken@8582
  1907
        return;
slouken@8582
  1908
    }
slouken@8582
  1909
slouken@8582
  1910
    if (_this->RestoreWindow) {
slouken@8582
  1911
        _this->RestoreWindow(_this, window);
slouken@8582
  1912
    }
slouken@8582
  1913
}
slouken@8582
  1914
slouken@8582
  1915
int
slouken@8582
  1916
SDL_SetWindowFullscreen(SDL_Window * window, Uint32 flags)
slouken@8582
  1917
{
slouken@8582
  1918
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1919
slouken@8582
  1920
    flags &= FULLSCREEN_MASK;
slouken@8582
  1921
slouken@8818
  1922
    if (flags == (window->flags & FULLSCREEN_MASK)) {
slouken@8582
  1923
        return 0;
slouken@8582
  1924
    }
slouken@8582
  1925
slouken@8582
  1926
    /* clear the previous flags and OR in the new ones */
slouken@8582
  1927
    window->flags &= ~FULLSCREEN_MASK;
slouken@8582
  1928
    window->flags |= flags;
slouken@8582
  1929
slouken@8582
  1930
    SDL_UpdateFullscreenMode(window, FULLSCREEN_VISIBLE(window));
slouken@8582
  1931
slouken@8582
  1932
    return 0;
slouken@8582
  1933
}
slouken@8582
  1934
slouken@8582
  1935
static SDL_Surface *
slouken@8582
  1936
SDL_CreateWindowFramebuffer(SDL_Window * window)
slouken@8582
  1937
{
slouken@8582
  1938
    Uint32 format;
slouken@8582
  1939
    void *pixels;
slouken@8582
  1940
    int pitch;
slouken@8582
  1941
    int bpp;
slouken@8582
  1942
    Uint32 Rmask, Gmask, Bmask, Amask;
slouken@8582
  1943
slouken@8582
  1944
    if (!_this->CreateWindowFramebuffer || !_this->UpdateWindowFramebuffer) {
slouken@8582
  1945
        return NULL;
slouken@8582
  1946
    }
slouken@8582
  1947
slouken@8582
  1948
    if (_this->CreateWindowFramebuffer(_this, window, &format, &pixels, &pitch) < 0) {
slouken@8582
  1949
        return NULL;
slouken@8582
  1950
    }
slouken@8582
  1951
slouken@8582
  1952
    if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
slouken@8582
  1953
        return NULL;
slouken@8582
  1954
    }
slouken@8582
  1955
slouken@8582
  1956
    return SDL_CreateRGBSurfaceFrom(pixels, window->w, window->h, bpp, pitch, Rmask, Gmask, Bmask, Amask);
slouken@8582
  1957
}
slouken@8582
  1958
slouken@8582
  1959
SDL_Surface *
slouken@8582
  1960
SDL_GetWindowSurface(SDL_Window * window)
slouken@8582
  1961
{
slouken@8582
  1962
    CHECK_WINDOW_MAGIC(window, NULL);
slouken@8582
  1963
slouken@8582
  1964
    if (!window->surface_valid) {
slouken@8582
  1965
        if (window->surface) {
slouken@8582
  1966
            window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  1967
            SDL_FreeSurface(window->surface);
slouken@8582
  1968
        }
slouken@8582
  1969
        window->surface = SDL_CreateWindowFramebuffer(window);
slouken@8582
  1970
        if (window->surface) {
slouken@8582
  1971
            window->surface_valid = SDL_TRUE;
slouken@8582
  1972
            window->surface->flags |= SDL_DONTFREE;
slouken@8582
  1973
        }
slouken@8582
  1974
    }
slouken@8582
  1975
    return window->surface;
slouken@8582
  1976
}
slouken@8582
  1977
slouken@8582
  1978
int
slouken@8582
  1979
SDL_UpdateWindowSurface(SDL_Window * window)
slouken@8582
  1980
{
slouken@8582
  1981
    SDL_Rect full_rect;
slouken@8582
  1982
slouken@8582
  1983
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1984
slouken@8582
  1985
    full_rect.x = 0;
slouken@8582
  1986
    full_rect.y = 0;
slouken@8582
  1987
    full_rect.w = window->w;
slouken@8582
  1988
    full_rect.h = window->h;
slouken@8582
  1989
    return SDL_UpdateWindowSurfaceRects(window, &full_rect, 1);
slouken@8582
  1990
}
slouken@8582
  1991
slouken@8582
  1992
int
slouken@8582
  1993
SDL_UpdateWindowSurfaceRects(SDL_Window * window, const SDL_Rect * rects,
slouken@8582
  1994
                             int numrects)
slouken@8582
  1995
{
slouken@8582
  1996
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  1997
slouken@8582
  1998
    if (!window->surface_valid) {
slouken@8582
  1999
        return SDL_SetError("Window surface is invalid, please call SDL_GetWindowSurface() to get a new surface");
slouken@8582
  2000
    }
slouken@8582
  2001
slouken@8582
  2002
    return _this->UpdateWindowFramebuffer(_this, window, rects, numrects);
slouken@8582
  2003
}
slouken@8582
  2004
slouken@8582
  2005
int
slouken@8582
  2006
SDL_SetWindowBrightness(SDL_Window * window, float brightness)
slouken@8582
  2007
{
slouken@8582
  2008
    Uint16 ramp[256];
slouken@8582
  2009
    int status;
slouken@8582
  2010
slouken@8582
  2011
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  2012
slouken@8582
  2013
    SDL_CalculateGammaRamp(brightness, ramp);
slouken@8582
  2014
    status = SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
slouken@8582
  2015
    if (status == 0) {
slouken@8582
  2016
        window->brightness = brightness;
slouken@8582
  2017
    }
slouken@8582
  2018
    return status;
slouken@8582
  2019
}
slouken@8582
  2020
slouken@8582
  2021
float
slouken@8582
  2022
SDL_GetWindowBrightness(SDL_Window * window)
slouken@8582
  2023
{
slouken@8582
  2024
    CHECK_WINDOW_MAGIC(window, 1.0f);
slouken@8582
  2025
slouken@8582
  2026
    return window->brightness;
slouken@8582
  2027
}
slouken@8582
  2028
slouken@8582
  2029
int
slouken@8582
  2030
SDL_SetWindowGammaRamp(SDL_Window * window, const Uint16 * red,
slouken@8582
  2031
                                            const Uint16 * green,
slouken@8582
  2032
                                            const Uint16 * blue)
slouken@8582
  2033
{
slouken@8582
  2034
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  2035
slouken@8582
  2036
    if (!_this->SetWindowGammaRamp) {
slouken@8582
  2037
        return SDL_Unsupported();
slouken@8582
  2038
    }
slouken@8582
  2039
slouken@8582
  2040
    if (!window->gamma) {
slouken@8582
  2041
        if (SDL_GetWindowGammaRamp(window, NULL, NULL, NULL) < 0) {
slouken@8582
  2042
            return -1;
slouken@8582
  2043
        }
slouken@8582
  2044
    }
slouken@8582
  2045
slouken@8582
  2046
    if (red) {
slouken@8582
  2047
        SDL_memcpy(&window->gamma[0*256], red, 256*sizeof(Uint16));
slouken@8582
  2048
    }
slouken@8582
  2049
    if (green) {
slouken@8582
  2050
        SDL_memcpy(&window->gamma[1*256], green, 256*sizeof(Uint16));
slouken@8582
  2051
    }
slouken@8582
  2052
    if (blue) {
slouken@8582
  2053
        SDL_memcpy(&window->gamma[2*256], blue, 256*sizeof(Uint16));
slouken@8582
  2054
    }
slouken@8582
  2055
    if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@8582
  2056
        return _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@8582
  2057
    } else {
slouken@8582
  2058
        return 0;
slouken@8582
  2059
    }
slouken@8582
  2060
}
slouken@8582
  2061
slouken@8582
  2062
int
slouken@8582
  2063
SDL_GetWindowGammaRamp(SDL_Window * window, Uint16 * red,
slouken@8582
  2064
                                            Uint16 * green,
slouken@8582
  2065
                                            Uint16 * blue)
slouken@8582
  2066
{
slouken@8582
  2067
    CHECK_WINDOW_MAGIC(window, -1);
slouken@8582
  2068
slouken@8582
  2069
    if (!window->gamma) {
slouken@8582
  2070
        int i;
slouken@8582
  2071
slouken@8582
  2072
        window->gamma = (Uint16 *)SDL_malloc(256*6*sizeof(Uint16));
slouken@8582
  2073
        if (!window->gamma) {
slouken@8582
  2074
            return SDL_OutOfMemory();
slouken@8582
  2075
        }
slouken@8582
  2076
        window->saved_gamma = window->gamma + 3*256;
slouken@8582
  2077
slouken@8582
  2078
        if (_this->GetWindowGammaRamp) {
slouken@8582
  2079
            if (_this->GetWindowGammaRamp(_this, window, window->gamma) < 0) {
slouken@8582
  2080
                return -1;
slouken@8582
  2081
            }
slouken@8582
  2082
        } else {
slouken@8582
  2083
            /* Create an identity gamma ramp */
slouken@8582
  2084
            for (i = 0; i < 256; ++i) {
slouken@8582
  2085
                Uint16 value = (Uint16)((i << 8) | i);
slouken@8582
  2086
slouken@8582
  2087
                window->gamma[0*256+i] = value;
slouken@8582
  2088
                window->gamma[1*256+i] = value;
slouken@8582
  2089
                window->gamma[2*256+i] = value;
slouken@8582
  2090
            }
slouken@8582
  2091
        }
slouken@8582
  2092
        SDL_memcpy(window->saved_gamma, window->gamma, 3*256*sizeof(Uint16));
slouken@8582
  2093
    }
slouken@8582
  2094
slouken@8582
  2095
    if (red) {
slouken@8582
  2096
        SDL_memcpy(red, &window->gamma[0*256], 256*sizeof(Uint16));
slouken@8582
  2097
    }
slouken@8582
  2098
    if (green) {
slouken@8582
  2099
        SDL_memcpy(green, &window->gamma[1*256], 256*sizeof(Uint16));
slouken@8582
  2100
    }
slouken@8582
  2101
    if (blue) {
slouken@8582
  2102
        SDL_memcpy(blue, &window->gamma[2*256], 256*sizeof(Uint16));
slouken@8582
  2103
    }
slouken@8582
  2104
    return 0;
slouken@8582
  2105
}
slouken@8582
  2106
slouken@8582
  2107
void
slouken@8582
  2108
SDL_UpdateWindowGrab(SDL_Window * window)
slouken@8582
  2109
{
slouken@8582
  2110
    if (_this->SetWindowGrab) {
slouken@8582
  2111
        SDL_bool grabbed;
slouken@8072
  2112
        if ((SDL_GetMouse()->relative_mode || (window->flags & SDL_WINDOW_INPUT_GRABBED)) &&
slouken@8072
  2113
             (window->flags & SDL_WINDOW_INPUT_FOCUS)) {
slouken@8582
  2114
            grabbed = SDL_TRUE;
slouken@8582
  2115
        } else {
slouken@8582
  2116
            grabbed = SDL_FALSE;
slouken@8582
  2117
        }
slouken@8582
  2118
        _this->SetWindowGrab(_this, window, grabbed);
slouken@8582
  2119
    }
slouken@8582
  2120
}
slouken@8582
  2121
slouken@8582
  2122
void
slouken@8582
  2123
SDL_SetWindowGrab(SDL_Window * window, SDL_bool grabbed)
slouken@8582
  2124
{
slouken@8818
  2125
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  2126
slouken@8582
  2127
    if (!!grabbed == !!(window->flags & SDL_WINDOW_INPUT_GRABBED)) {
slouken@8582
  2128
        return;
slouken@8582
  2129
    }
slouken@8582
  2130
    if (grabbed) {
slouken@8582
  2131
        window->flags |= SDL_WINDOW_INPUT_GRABBED;
slouken@8582
  2132
    } else {
slouken@8582
  2133
        window->flags &= ~SDL_WINDOW_INPUT_GRABBED;
slouken@8582
  2134
    }
slouken@8582
  2135
    SDL_UpdateWindowGrab(window);
slouken@8582
  2136
}
slouken@8582
  2137
slouken@8582
  2138
SDL_bool
slouken@8582
  2139
SDL_GetWindowGrab(SDL_Window * window)
slouken@8582
  2140
{
slouken@8582
  2141
    CHECK_WINDOW_MAGIC(window, SDL_FALSE);
slouken@8582
  2142
slouken@8582
  2143
    return ((window->flags & SDL_WINDOW_INPUT_GRABBED) != 0);
slouken@8582
  2144
}
slouken@8582
  2145
slouken@8582
  2146
void
slouken@8582
  2147
SDL_OnWindowShown(SDL_Window * window)
slouken@8582
  2148
{
slouken@8582
  2149
    SDL_OnWindowRestored(window);
slouken@8582
  2150
}
slouken@8582
  2151
slouken@8582
  2152
void
slouken@8582
  2153
SDL_OnWindowHidden(SDL_Window * window)
slouken@8582
  2154
{
slouken@8582
  2155
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  2156
}
slouken@8582
  2157
slouken@8582
  2158
void
slouken@8582
  2159
SDL_OnWindowResized(SDL_Window * window)
slouken@8582
  2160
{
slouken@8582
  2161
    window->surface_valid = SDL_FALSE;
slouken@8582
  2162
    SDL_SendWindowEvent(window, SDL_WINDOWEVENT_SIZE_CHANGED, window->w, window->h);
slouken@8582
  2163
}
slouken@8582
  2164
slouken@8582
  2165
void
slouken@8582
  2166
SDL_OnWindowMinimized(SDL_Window * window)
slouken@8582
  2167
{
slouken@8582
  2168
    SDL_UpdateFullscreenMode(window, SDL_FALSE);
slouken@8582
  2169
}
slouken@8582
  2170
slouken@8582
  2171
void
slouken@8582
  2172
SDL_OnWindowRestored(SDL_Window * window)
slouken@8582
  2173
{
pgriffais@8683
  2174
    /*
pgriffais@8683
  2175
     * FIXME: Is this fine to just remove this, or should it be preserved just
pgriffais@8683
  2176
     * for the fullscreen case? In principle it seems like just hiding/showing
pgriffais@8683
  2177
     * windows shouldn't affect the stacking order; maybe the right fix is to
pgriffais@8683
  2178
     * re-decouple OnWindowShown and OnWindowRestored.
pgriffais@8683
  2179
     */
icculus@8684
  2180
    /*SDL_RaiseWindow(window);*/
slouken@8582
  2181
slouken@8582
  2182
    if (FULLSCREEN_VISIBLE(window)) {
slouken@8582
  2183
        SDL_UpdateFullscreenMode(window, SDL_TRUE);
slouken@8582
  2184
    }
slouken@8582
  2185
}
slouken@8582
  2186
slouken@8582
  2187
void
slouken@8582
  2188
SDL_OnWindowEnter(SDL_Window * window)
slouken@8582
  2189
{
slouken@8582
  2190
    if (_this->OnWindowEnter) {
slouken@8582
  2191
        _this->OnWindowEnter(_this, window);
slouken@8582
  2192
    }
slouken@8582
  2193
}
slouken@8582
  2194
slouken@8582
  2195
void
slouken@8582
  2196
SDL_OnWindowLeave(SDL_Window * window)
slouken@8582
  2197
{
slouken@8582
  2198
}
slouken@8582
  2199
slouken@8582
  2200
void
slouken@8582
  2201
SDL_OnWindowFocusGained(SDL_Window * window)
slouken@8582
  2202
{
slouken@8582
  2203
    SDL_Mouse *mouse = SDL_GetMouse();
slouken@8582
  2204
slouken@8582
  2205
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@8582
  2206
        _this->SetWindowGammaRamp(_this, window, window->gamma);
slouken@8582
  2207
    }
slouken@8582
  2208
slouken@8582
  2209
    if (mouse && mouse->relative_mode) {
slouken@8582
  2210
        SDL_SetMouseFocus(window);
slouken@8582
  2211
        SDL_WarpMouseInWindow(window, window->w/2, window->h/2);
slouken@8582
  2212
    }
slouken@8582
  2213
slouken@8582
  2214
    SDL_UpdateWindowGrab(window);
slouken@8582
  2215
}
slouken@8582
  2216
slouken@8582
  2217
static SDL_bool
slouken@8582
  2218
ShouldMinimizeOnFocusLoss(SDL_Window * window)
slouken@8582
  2219
{
slouken@8582
  2220
    const char *hint;
slouken@8582
  2221
jorgen@8112
  2222
    if (!(window->flags & SDL_WINDOW_FULLSCREEN) || window->is_destroying) {
slouken@8582
  2223
        return SDL_FALSE;
slouken@8582
  2224
    }
slouken@8582
  2225
slouken@8582
  2226
#ifdef __MACOSX__
slouken@8582
  2227
    if (Cocoa_IsWindowInFullscreenSpace(window)) {
slouken@8582
  2228
        return SDL_FALSE;
slouken@8582
  2229
    }
slouken@8582
  2230
#endif
slouken@8582
  2231
slouken@8582
  2232
    hint = SDL_GetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS);
slouken@8582
  2233
    if (hint) {
slouken@8582
  2234
        if (*hint == '0') {
slouken@8582
  2235
            return SDL_FALSE;
slouken@8582
  2236
        } else {
slouken@8582
  2237
            return SDL_TRUE;
slouken@8582
  2238
        }
slouken@8582
  2239
    }
slouken@8582
  2240
slouken@8582
  2241
    return SDL_TRUE;
slouken@8582
  2242
}
slouken@8582
  2243
slouken@8582
  2244
void
slouken@8582
  2245
SDL_OnWindowFocusLost(SDL_Window * window)
slouken@8582
  2246
{
slouken@8582
  2247
    if (window->gamma && _this->SetWindowGammaRamp) {
slouken@8582
  2248
        _this->SetWindowGammaRamp(_this, window, window->saved_gamma);
slouken@8582
  2249
    }
slouken@8582
  2250
slouken@8582
  2251
    SDL_UpdateWindowGrab(window);
slouken@8582
  2252
slouken@8582
  2253
    if (ShouldMinimizeOnFocusLoss(window)) {
slouken@8582
  2254
        SDL_MinimizeWindow(window);
slouken@8582
  2255
    }
slouken@8582
  2256
}
slouken@8582
  2257
icculus@8783
  2258
/* !!! FIXME: is this different than SDL_GetKeyboardFocus()?
icculus@8783
  2259
   !!! FIXME:  Also, SDL_GetKeyboardFocus() is O(1), this isn't. */
slouken@8582
  2260
SDL_Window *
slouken@8582
  2261
SDL_GetFocusWindow(void)
slouken@8582
  2262
{
slouken@8582
  2263
    SDL_Window *window;
slouken@8582
  2264
slouken@8582
  2265
    if (!_this) {
slouken@8582
  2266
        return NULL;
slouken@8582
  2267
    }
slouken@8582
  2268
    for (window = _this->windows; window; window = window->next) {
slouken@8582
  2269
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
slouken@8582
  2270
            return window;
slouken@8582
  2271
        }
slouken@8582
  2272
    }
slouken@8582
  2273
    return NULL;
slouken@8582
  2274
}
slouken@8582
  2275
slouken@8582
  2276
void
slouken@8582
  2277
SDL_DestroyWindow(SDL_Window * window)
slouken@8582
  2278
{
slouken@8582
  2279
    SDL_VideoDisplay *display;
slouken@8582
  2280
slouken@8818
  2281
    CHECK_WINDOW_MAGIC(window,);
slouken@8582
  2282
jorgen@8112
  2283
    window->is_destroying = SDL_TRUE;
jorgen@8112
  2284
slouken@8582
  2285
    /* Restore video mode, etc. */
slouken@8582
  2286
    SDL_HideWindow(window);
slouken@8582
  2287
slouken@8582
  2288
    /* Make sure this window no longer has focus */
slouken@8582
  2289
    if (SDL_GetKeyboardFocus() == window) {
slouken@8582
  2290
        SDL_SetKeyboardFocus(NULL);
slouken@8582
  2291
    }
slouken@8582
  2292
    if (SDL_GetMouseFocus() == window) {
slouken@8582
  2293
        SDL_SetMouseFocus(NULL);
slouken@8582
  2294
    }
slouken@8582
  2295
slouken@8582
  2296
    /* make no context current if this is the current context window. */
slouken@8582
  2297
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@8582
  2298
        if (_this->current_glwin == window) {
slouken@8582
  2299
            SDL_GL_MakeCurrent(window, NULL);
slouken@8582
  2300
        }
slouken@8582
  2301
    }
slouken@8582
  2302
slouken@8582
  2303
    if (window->surface) {
slouken@8582
  2304
        window->surface->flags &= ~SDL_DONTFREE;
slouken@8582
  2305
        SDL_FreeSurface(window->surface);
slouken@8582
  2306
    }
slouken@8582
  2307
    if (_this->DestroyWindowFramebuffer) {
slouken@8582
  2308
        _this->DestroyWindowFramebuffer(_this, window);
slouken@8582
  2309
    }
slouken@8582
  2310
    if (_this->DestroyWindow) {
slouken@8582
  2311
        _this->DestroyWindow(_this, window);
slouken@8582
  2312
    }
slouken@8582
  2313
    if (window->flags & SDL_WINDOW_OPENGL) {
slouken@8582
  2314
        SDL_GL_UnloadLibrary();
slouken@8582
  2315
    }
slouken@8582
  2316
slouken@8582
  2317
    display = SDL_GetDisplayForWindow(window);
slouken@8582
  2318
    if (display->fullscreen_window == window) {
slouken@8582
  2319
        display->fullscreen_window = NULL;
slouken@8582
  2320
    }
slouken@8582
  2321
slouken@8582
  2322
    /* Now invalidate magic */
slouken@8582
  2323
    window->magic = NULL;
slouken@8582
  2324
slouken@8582
  2325
    /* Free memory associated with the window */
slouken@8582
  2326
    SDL_free(window->title);
slouken@8582
  2327
    SDL_FreeSurface(window->icon);
slouken@8582
  2328
    SDL_free(window->gamma);
slouken@8582
  2329
    while (window->data) {
slouken@8582
  2330
        SDL_WindowUserData *data = window->data;
slouken@8582
  2331
slouken@8582
  2332
        window->data = data->next;
slouken@8582
  2333
        SDL_free(data->name);
slouken@8582
  2334
        SDL_free(data);
slouken@8582
  2335
    }
slouken@8582
  2336
slouken@8582
  2337
    /* Unlink the window from the list */
slouken@8582
  2338
    if (window->next) {
slouken@8582
  2339
        window->next->prev = window->prev;
slouken@8582
  2340
    }
slouken@8582
  2341
    if (window->prev) {
slouken@8582
  2342
        window->prev->next = window->next;
slouken@8582
  2343
    } else {
slouken@8582
  2344
        _this->windows = window->next;
slouken@8582
  2345
    }
slouken@8582
  2346
slouken@8582
  2347
    SDL_free(window);
slouken@8582
  2348
}
slouken@8582
  2349
slouken@8582
  2350
SDL_bool
slouken@8582
  2351
SDL_IsScreenSaverEnabled()
slouken@8582
  2352
{
slouken@8582
  2353
    if (!_this) {
slouken@8582
  2354
        return SDL_TRUE;
slouken@8582
  2355
    }
slouken@8582
  2356
    return _this->suspend_screensaver ? SDL_FALSE : SDL_TRUE;
slouken@8582
  2357
}
slouken@8582
  2358
slouken@8582
  2359
void
slouken@8582
  2360
SDL_EnableScreenSaver()
slouken@8582
  2361
{
slouken@8582
  2362
    if (!_this) {
slouken@8582
  2363
        return;
slouken@8582
  2364
    }
slouken@8582
  2365
    if (!_this->suspend_screensaver) {
slouken@8582
  2366
        return;
slouken@8582
  2367
    }
slouken@8582
  2368
    _this->suspend_screensaver = SDL_FALSE;
slouken@8582
  2369
    if (_this->SuspendScreenSaver) {
slouken@8582
  2370
        _this->SuspendScreenSaver(_this);
slouken@8582
  2371
    }
slouken@8582
  2372
}
slouken@8582
  2373
slouken@8582
  2374
void
slouken@8582
  2375
SDL_DisableScreenSaver()
slouken@8582
  2376
{
slouken@8582
  2377
    if (!_this) {
slouken@8582
  2378
        return;
slouken@8582
  2379
    }
slouken@8582
  2380
    if (_this->suspend_screensaver) {
slouken@8582
  2381
        return;
slouken@8582
  2382
    }
slouken@8582
  2383
    _this->suspend_screensaver = SDL_TRUE;
slouken@8582
  2384
    if (_this->SuspendScreenSaver) {
slouken@8582
  2385
        _this->SuspendScreenSaver(_this);
slouken@8582
  2386
    }
slouken@8582
  2387
}
slouken@8582
  2388
slouken@8582
  2389
void
slouken@8582
  2390
SDL_VideoQuit(void)
slouken@8582
  2391
{
slouken@8582
  2392
    int i, j;
slouken@8582
  2393
slouken@8582
  2394
    if (!_this) {
slouken@8582
  2395
        return;
slouken@8582
  2396
    }
slouken@8582
  2397
slouken@8582
  2398
    /* Halt event processing before doing anything else */
slouken@8582
  2399
    SDL_TouchQuit();
slouken@8582
  2400
    SDL_MouseQuit();
slouken@8582
  2401
    SDL_KeyboardQuit();
slouken@8582
  2402
    SDL_QuitSubSystem(SDL_INIT_EVENTS);
slouken@8582
  2403
slouken@8582
  2404
    SDL_EnableScreenSaver();
slouken@8582
  2405
slouken@8582
  2406
    /* Clean up the system video */
slouken@8582
  2407
    while (_this->windows) {
slouken@8582
  2408
        SDL_DestroyWindow(_this->windows);
slouken@8582
  2409
    }
slouken@8582
  2410
    _this->VideoQuit(_this);
slouken@8582
  2411
slouken@8582
  2412
    for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
  2413
        SDL_VideoDisplay *display = &_this->displays[i];
slouken@8582
  2414
        for (j = display->num_display_modes; j--;) {
slouken@8582
  2415
            SDL_free(display->display_modes[j].driverdata);
slouken@8582
  2416
            display->display_modes[j].driverdata = NULL;
slouken@8582
  2417
        }
slouken@8582
  2418
        SDL_free(display->display_modes);
slouken@8582
  2419
        display->display_modes = NULL;
slouken@8582
  2420
        SDL_free(display->desktop_mode.driverdata);
slouken@8582
  2421
        display->desktop_mode.driverdata = NULL;
slouken@8582
  2422
        SDL_free(display->driverdata);
slouken@8582
  2423
        display->driverdata = NULL;
slouken@8582
  2424
    }
slouken@8582
  2425
    if (_this->displays) {
slouken@8582
  2426
        for (i = 0; i < _this->num_displays; ++i) {
slouken@8582
  2427
            SDL_free(_this->displays[i].name);
slouken@8582
  2428
        }
slouken@8582
  2429
        SDL_free(_this->displays);
slouken@8582
  2430
        _this->displays = NULL;
slouken@8582
  2431
        _this->num_displays = 0;
slouken@8582
  2432
    }
slouken@8582
  2433
    SDL_free(_this->clipboard_text);
slouken@8582
  2434
    _this->clipboard_text = NULL;
slouken@8582
  2435
    _this->free(_this);
slouken@8582
  2436
    _this = NULL;
slouken@8582
  2437
}
slouken@8582
  2438
slouken@8582
  2439
int
slouken@8582
  2440
SDL_GL_LoadLibrary(const char *path)
slouken@8582
  2441
{
slouken@8582
  2442
    int retval;
slouken@8582
  2443
slouken@8582
  2444
    if (!_this) {
slouken@8582
  2445
        return SDL_UninitializedVideo();
slouken@8582
  2446
    }
slouken@8582
  2447
    if (_this->gl_config.driver_loaded) {
slouken@8582
  2448
        if (path && SDL_strcmp(path, _this->gl_config.driver_path) != 0) {
slouken@8582
  2449
            return SDL_SetError("OpenGL library already loaded");
slouken@8582
  2450
        }
slouken@8582
  2451
        retval = 0;
slouken@8582
  2452
    } else {
slouken@8582
  2453
        if (!_this->GL_LoadLibrary) {
slouken@8582
  2454
            return SDL_SetError("No dynamic GL support in video driver");
slouken@8582
  2455
        }
slouken@8582
  2456
        retval = _this->GL_LoadLibrary(_this, path);
slouken@8582
  2457
    }
slouken@8582
  2458
    if (retval == 0) {
slouken@8582
  2459
        ++_this->gl_config.driver_loaded;
slouken@8582
  2460
    } else {
slouken@8582
  2461
        if (_this->GL_UnloadLibrary) {
slouken@8582
  2462
            _this->GL_UnloadLibrary(_this);
slouken@8582
  2463
        }
slouken@8582
  2464
    }
slouken@8582
  2465
    return (retval);
slouken@8582
  2466
}
slouken@8582
  2467
slouken@8582
  2468
void *
slouken@8582
  2469
SDL_GL_GetProcAddress(const char *proc)
slouken@8582
  2470
{
slouken@8582
  2471
    void *func;
slouken@8582
  2472
slouken@8582
  2473
    if (!_this) {
slouken@8582
  2474
        SDL_UninitializedVideo();
slouken@8582
  2475
        return NULL;
slouken@8582
  2476
    }
slouken@8582
  2477
    func = NULL;
slouken@8582
  2478
    if (_this->GL_GetProcAddress) {
slouken@8582
  2479
        if (_this->gl_config.driver_loaded) {
slouken@8582
  2480
            func = _this->GL_GetProcAddress(_this, proc);
slouken@8582
  2481
        } else {
slouken@8582
  2482
            SDL_SetError("No GL driver has been loaded");
slouken@8582
  2483
        }
slouken@8582
  2484
    } else {
slouken@8582
  2485
        SDL_SetError("No dynamic GL support in video driver");
slouken@8582
  2486
    }
slouken@8582
  2487
    return func;
slouken@8582
  2488
}
slouken@8582
  2489
slouken@8582
  2490
void
slouken@8582
  2491
SDL_GL_UnloadLibrary(void)
slouken@8582
  2492
{
slouken@8582
  2493
    if (!_this) {
slouken@8582
  2494
        SDL_UninitializedVideo();
slouken@8582
  2495
        return;
slouken@8582
  2496
    }
slouken@8582
  2497
    if (_this->gl_config.driver_loaded > 0) {
slouken@8582
  2498
        if (--_this->gl_config.driver_loaded > 0) {
slouken@8582
  2499
            return;
slouken@8582
  2500
        }
slouken@8582
  2501
        if (_this->GL_UnloadLibrary) {
slouken@8582
  2502
            _this->GL_UnloadLibrary(_this);
slouken@8582
  2503
        }
slouken@8582
  2504
    }
slouken@8582
  2505
}
slouken@8582
  2506
slouken@8582
  2507
static SDL_INLINE SDL_bool
slouken@8582
  2508
isAtLeastGL3(const char *verstr)
slouken@8582
  2509
{
slouken@8818
  2510
    return (verstr && (SDL_atoi(verstr) >= 3));
slouken@8582
  2511
}
slouken@8582
  2512
slouken@8582
  2513
SDL_bool
slouken@8582
  2514
SDL_GL_ExtensionSupported(const char *extension)
slouken@8582
  2515
{
slouken@8582
  2516
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2517
    const GLubyte *(APIENTRY * glGetStringFunc) (GLenum);
slouken@8582
  2518
    const char *extensions;
slouken@8582
  2519
    const char *start;
slouken@8582
  2520
    const char *where, *terminator;
slouken@8582
  2521
slouken@8582
  2522
    /* Extension names should not have spaces. */
slouken@8582
  2523
    where = SDL_strchr(extension, ' ');
slouken@8582
  2524
    if (where || *extension == '\0') {
slouken@8582
  2525
        return SDL_FALSE;
slouken@8582
  2526
    }
slouken@8582
  2527
    /* See if there's an environment variable override */
slouken@8582
  2528
    start = SDL_getenv(extension);
slouken@8582
  2529
    if (start && *start == '0') {
slouken@8582
  2530
        return SDL_FALSE;
slouken@8582
  2531
    }
slouken@8582
  2532
slouken@8582
  2533
    /* Lookup the available extensions */
slouken@8582
  2534
slouken@8582
  2535
    glGetStringFunc = SDL_GL_GetProcAddress("glGetString");
slouken@8582
  2536
    if (!glGetStringFunc) {
slouken@8582
  2537
        return SDL_FALSE;
slouken@8582
  2538
    }
slouken@8582
  2539
slouken@8582
  2540
    if (isAtLeastGL3((const char *) glGetStringFunc(GL_VERSION))) {
slouken@8582
  2541
        const GLubyte *(APIENTRY * glGetStringiFunc) (GLenum, GLuint);
slouken@8582
  2542
        void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@8582
  2543
        GLint num_exts = 0;
slouken@8582
  2544
        GLint i;
slouken@8582
  2545
slouken@8582
  2546
        glGetStringiFunc = SDL_GL_GetProcAddress("glGetStringi");
slouken@8582
  2547
        glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@8582
  2548
        if ((!glGetStringiFunc) || (!glGetIntegervFunc)) {
slouken@8582
  2549
            return SDL_FALSE;
slouken@8582
  2550
        }
slouken@8582
  2551
slouken@8582
  2552
        #ifndef GL_NUM_EXTENSIONS
slouken@8582
  2553
        #define GL_NUM_EXTENSIONS 0x821D
slouken@8582
  2554
        #endif
slouken@8582
  2555
        glGetIntegervFunc(GL_NUM_EXTENSIONS, &num_exts);
slouken@8582
  2556
        for (i = 0; i < num_exts; i++) {
slouken@8582
  2557
            const char *thisext = (const char *) glGetStringiFunc(GL_EXTENSIONS, i);
slouken@8582
  2558
            if (SDL_strcmp(thisext, extension) == 0) {
slouken@8582
  2559
                return SDL_TRUE;
slouken@8582
  2560
            }
slouken@8582
  2561
        }
slouken@8582
  2562
slouken@8582
  2563
        return SDL_FALSE;
slouken@8582
  2564
    }
slouken@8582
  2565
slouken@8582
  2566
    /* Try the old way with glGetString(GL_EXTENSIONS) ... */
slouken@8582
  2567
slouken@8582
  2568
    extensions = (const char *) glGetStringFunc(GL_EXTENSIONS);
slouken@8582
  2569
    if (!extensions) {
slouken@8582
  2570
        return SDL_FALSE;
slouken@8582
  2571
    }
slouken@8582
  2572
    /*
slouken@8582
  2573
     * It takes a bit of care to be fool-proof about parsing the OpenGL
slouken@8582
  2574
     * extensions string. Don't be fooled by sub-strings, etc.
slouken@8582
  2575
     */
slouken@8582
  2576
slouken@8582
  2577
    start = extensions;
slouken@8582
  2578
slouken@8582
  2579
    for (;;) {
slouken@8582
  2580
        where = SDL_strstr(start, extension);
slouken@8582
  2581
        if (!where)
slouken@8582
  2582
            break;
slouken@8582
  2583
slouken@8582
  2584
        terminator = where + SDL_strlen(extension);
slouken@8582
  2585
        if (where == start || *(where - 1) == ' ')
slouken@8582
  2586
            if (*terminator == ' ' || *terminator == '\0')
slouken@8582
  2587
                return SDL_TRUE;
slouken@8582
  2588
slouken@8582
  2589
        start = terminator;
slouken@8582
  2590
    }
slouken@8582
  2591
    return SDL_FALSE;
slouken@8582
  2592
#else
slouken@8582
  2593
    return SDL_FALSE;
slouken@8582
  2594
#endif
slouken@8582
  2595
}
slouken@8582
  2596
jorgen@8145
  2597
void
jorgen@8145
  2598
SDL_GL_ResetAttributes()
jorgen@8145
  2599
{
jorgen@8145
  2600
    if (!_this) {
jorgen@8145
  2601
        return;
jorgen@8145
  2602
    }
jorgen@8145
  2603
jorgen@8145
  2604
    _this->gl_config.red_size = 3;
jorgen@8145
  2605
    _this->gl_config.green_size = 3;
jorgen@8145
  2606
    _this->gl_config.blue_size = 2;
jorgen@8145
  2607
    _this->gl_config.alpha_size = 0;
jorgen@8145
  2608
    _this->gl_config.buffer_size = 0;
jorgen@8145
  2609
    _this->gl_config.depth_size = 16;
jorgen@8145
  2610
    _this->gl_config.stencil_size = 0;
jorgen@8145
  2611
    _this->gl_config.double_buffer = 1;
jorgen@8145
  2612
    _this->gl_config.accum_red_size = 0;
jorgen@8145
  2613
    _this->gl_config.accum_green_size = 0;
jorgen@8145
  2614
    _this->gl_config.accum_blue_size = 0;
jorgen@8145
  2615
    _this->gl_config.accum_alpha_size = 0;
jorgen@8145
  2616
    _this->gl_config.stereo = 0;
jorgen@8145
  2617
    _this->gl_config.multisamplebuffers = 0;
jorgen@8145
  2618
    _this->gl_config.multisamplesamples = 0;
jorgen@8145
  2619
    _this->gl_config.retained_backing = 1;
jorgen@8145
  2620
    _this->gl_config.accelerated = -1;  /* accelerated or not, both are fine */
slouken@8601
  2621
    _this->gl_config.profile_mask = 0;
icculus@8586
  2622
#if SDL_VIDEO_OPENGL
slouken@8601
  2623
    _this->gl_config.major_version = 2;
slouken@8601
  2624
    _this->gl_config.minor_version = 1;
jorgen@8145
  2625
#elif SDL_VIDEO_OPENGL_ES2
jorgen@8145
  2626
    _this->gl_config.major_version = 2;
jorgen@8145
  2627
    _this->gl_config.minor_version = 0;
jorgen@8145
  2628
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
jorgen@8145
  2629
#elif SDL_VIDEO_OPENGL_ES
jorgen@8145
  2630
    _this->gl_config.major_version = 1;
jorgen@8145
  2631
    _this->gl_config.minor_version = 1;
jorgen@8145
  2632
    _this->gl_config.profile_mask = SDL_GL_CONTEXT_PROFILE_ES;
jorgen@8145
  2633
#endif
jorgen@8145
  2634
    _this->gl_config.flags = 0;
jorgen@8145
  2635
    _this->gl_config.framebuffer_srgb_capable = 0;
jorgen@8145
  2636
jorgen@8145
  2637
    _this->gl_config.share_with_current_context = 0;
jorgen@8145
  2638
}
jorgen@8145
  2639
slouken@8582
  2640
int
slouken@8582
  2641
SDL_GL_SetAttribute(SDL_GLattr attr, int value)
slouken@8582
  2642
{
slouken@8582
  2643
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2644
    int retval;
slouken@8582
  2645
slouken@8582
  2646
    if (!_this) {
slouken@8582
  2647
        return SDL_UninitializedVideo();
slouken@8582
  2648
    }
slouken@8582
  2649
    retval = 0;
slouken@8582
  2650
    switch (attr) {
slouken@8582
  2651
    case SDL_GL_RED_SIZE:
slouken@8582
  2652
        _this->gl_config.red_size = value;
slouken@8582
  2653
        break;
slouken@8582
  2654
    case SDL_GL_GREEN_SIZE:
slouken@8582
  2655
        _this->gl_config.green_size = value;
slouken@8582
  2656
        break;
slouken@8582
  2657
    case SDL_GL_BLUE_SIZE:
slouken@8582
  2658
        _this->gl_config.blue_size = value;
slouken@8582
  2659
        break;
slouken@8582
  2660
    case SDL_GL_ALPHA_SIZE:
slouken@8582
  2661
        _this->gl_config.alpha_size = value;
slouken@8582
  2662
        break;
slouken@8582
  2663
    case SDL_GL_DOUBLEBUFFER:
slouken@8582
  2664
        _this->gl_config.double_buffer = value;
slouken@8582
  2665
        break;
slouken@8582
  2666
    case SDL_GL_BUFFER_SIZE:
slouken@8582
  2667
        _this->gl_config.buffer_size = value;
slouken@8582
  2668
        break;
slouken@8582
  2669
    case SDL_GL_DEPTH_SIZE:
slouken@8582
  2670
        _this->gl_config.depth_size = value;
slouken@8582
  2671
        break;
slouken@8582
  2672
    case SDL_GL_STENCIL_SIZE:
slouken@8582
  2673
        _this->gl_config.stencil_size = value;
slouken@8582
  2674
        break;
slouken@8582
  2675
    case SDL_GL_ACCUM_RED_SIZE:
slouken@8582
  2676
        _this->gl_config.accum_red_size = value;
slouken@8582
  2677
        break;
slouken@8582
  2678
    case SDL_GL_ACCUM_GREEN_SIZE:
slouken@8582
  2679
        _this->gl_config.accum_green_size = value;
slouken@8582
  2680
        break;
slouken@8582
  2681
    case SDL_GL_ACCUM_BLUE_SIZE:
slouken@8582
  2682
        _this->gl_config.accum_blue_size = value;
slouken@8582
  2683
        break;
slouken@8582
  2684
    case SDL_GL_ACCUM_ALPHA_SIZE:
slouken@8582
  2685
        _this->gl_config.accum_alpha_size = value;
slouken@8582
  2686
        break;
slouken@8582
  2687
    case SDL_GL_STEREO:
slouken@8582
  2688
        _this->gl_config.stereo = value;
slouken@8582
  2689
        break;
slouken@8582
  2690
    case SDL_GL_MULTISAMPLEBUFFERS:
slouken@8582
  2691
        _this->gl_config.multisamplebuffers = value;
slouken@8582
  2692
        break;
slouken@8582
  2693
    case SDL_GL_MULTISAMPLESAMPLES:
slouken@8582
  2694
        _this->gl_config.multisamplesamples = value;
slouken@8582
  2695
        break;
slouken@8582
  2696
    case SDL_GL_ACCELERATED_VISUAL:
slouken@8582
  2697
        _this->gl_config.accelerated = value;
slouken@8582
  2698
        break;
slouken@8582
  2699
    case SDL_GL_RETAINED_BACKING:
slouken@8582
  2700
        _this->gl_config.retained_backing = value;
slouken@8582
  2701
        break;
slouken@8582
  2702
    case SDL_GL_CONTEXT_MAJOR_VERSION:
slouken@8582
  2703
        _this->gl_config.major_version = value;
slouken@8582
  2704
        break;
slouken@8582
  2705
    case SDL_GL_CONTEXT_MINOR_VERSION:
slouken@8582
  2706
        _this->gl_config.minor_version = value;
slouken@8582
  2707
        break;
slouken@8582
  2708
    case SDL_GL_CONTEXT_EGL:
slouken@8582
  2709
        /* FIXME: SDL_GL_CONTEXT_EGL to be deprecated in SDL 2.1 */
slouken@8582
  2710
        if (value != 0) {
slouken@8582
  2711
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
slouken@8582
  2712
        } else {
slouken@8582
  2713
            SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, 0);
slouken@8582
  2714
        };
slouken@8582
  2715
        break;
slouken@8582
  2716
    case SDL_GL_CONTEXT_FLAGS:
slouken@8818
  2717
        if (value & ~(SDL_GL_CONTEXT_DEBUG_FLAG |
slouken@8818
  2718
                      SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG |
slouken@8818
  2719
                      SDL_GL_CONTEXT_ROBUST_ACCESS_FLAG |
slouken@8818
  2720
                      SDL_GL_CONTEXT_RESET_ISOLATION_FLAG)) {
slouken@8818
  2721
            retval = SDL_SetError("Unknown OpenGL context flag %d", value);
slouken@8818
  2722
            break;
slouken@8818
  2723
        }
slouken@8582
  2724
        _this->gl_config.flags = value;
slouken@8582
  2725
        break;
slouken@8582
  2726
    case SDL_GL_CONTEXT_PROFILE_MASK:
slouken@8818
  2727
        if (value != 0 &&
slouken@8818
  2728
            value != SDL_GL_CONTEXT_PROFILE_CORE &&
slouken@8818
  2729
            value != SDL_GL_CONTEXT_PROFILE_COMPATIBILITY &&
slouken@8818
  2730
            value != SDL_GL_CONTEXT_PROFILE_ES) {
slouken@8818
  2731
            retval = SDL_SetError("Unknown OpenGL context profile %d", value);
slouken@8818
  2732
            break;
slouken@8818
  2733
        }
slouken@8582
  2734
        _this->gl_config.profile_mask = value;
slouken@8582
  2735
        break;
slouken@8582
  2736
    case SDL_GL_SHARE_WITH_CURRENT_CONTEXT:
slouken@8582
  2737
        _this->gl_config.share_with_current_context = value;
slouken@8582
  2738
        break;
slouken@8582
  2739
    case SDL_GL_FRAMEBUFFER_SRGB_CAPABLE:
slouken@8582
  2740
        _this->gl_config.framebuffer_srgb_capable = value;
slouken@8582
  2741
        break;
slouken@8582
  2742
    default:
slouken@8582
  2743
        retval = SDL_SetError("Unknown OpenGL attribute");
slouken@8582
  2744
        break;
slouken@8582
  2745
    }
slouken@8582
  2746
    return retval;
slouken@8582
  2747
#else
slouken@8582
  2748
    return SDL_Unsupported();
slouken@8582
  2749
#endif /* SDL_VIDEO_OPENGL */
slouken@8582
  2750
}
slouken@8582
  2751
slouken@8582
  2752
int
slouken@8582
  2753
SDL_GL_GetAttribute(SDL_GLattr attr, int *value)
slouken@8582
  2754
{
slouken@8582
  2755
#if SDL_VIDEO_OPENGL || SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
slouken@8582
  2756
    void (APIENTRY * glGetIntegervFunc) (GLenum pname, GLint * params);
slouken@8582
  2757
    GLenum(APIENTRY * glGetErrorFunc) (void);
slouken@8582
  2758
    GLenum attrib = 0;
slouken@8582
  2759
    GLenum error = 0;
slouken@8582
  2760
slouken@8582
  2761
    glGetIntegervFunc = SDL_GL_GetProcAddress("glGetIntegerv");
slouken@8582
  2762
    if (!glGetIntegervFunc) {
slouken@8582
  2763
        return -1;
slouken@8582
  2764
    }
slouken@8582
  2765
slouken@8582
  2766
    glGetErrorFunc = SDL_GL_GetProcAddress("glGetError");
slouken@8582
  2767
    if (!glGetErrorFunc) {
slouken@8582
  2768
        return -1;
slouken@8582
  2769
    }
slouken@8582
  2770
slouken@8582
  2771
    /* Clear value in any case */
slouken@8582
  2772
    *value = 0;