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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <SDL.h>
#include "sim-ui-defines.h"
#include "window-sdl.h"
#include "lcd-sdl.h"
#include "misc.h"
#include "panic.h"
extern SDL_Surface *lcd_surface;
#ifdef HAVE_REMOTE_LCD
extern SDL_Surface *remote_surface;
#endif
SDL_Texture *gui_texture;
SDL_Surface *sim_lcd_surface;
SDL_mutex *window_mutex;
SDL_Window *sdlWindow;
static SDL_Renderer *sdlRenderer;
static SDL_Surface *picture_surface;
static bool new_gui_texture_needed = true;
static bool window_adjustment_needed;
double display_zoom = 1;
static void get_window_dimensions(int *w, int *h)
{
if (background)
{
*w = UI_WIDTH;
*h = UI_HEIGHT;
}
else
{
#ifdef HAVE_REMOTE_LCD
if (showremote)
{
*w = SIM_LCD_WIDTH > SIM_REMOTE_WIDTH ? SIM_LCD_WIDTH : SIM_REMOTE_WIDTH;
*h = SIM_LCD_HEIGHT + SIM_REMOTE_HEIGHT;
}
else
#endif
{
*w = SIM_LCD_WIDTH;
*h = SIM_LCD_HEIGHT;
}
}
}
#if defined(__APPLE__) || defined(__WIN32)
static void restore_aspect_ratio(int w, int h)
{
float aspect_ratio = (float) h / w;
int original_height = h;
int original_width = w;
if ((SDL_GetWindowFlags(sdlWindow) & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN))
|| display_zoom)
return;
SDL_GetWindowSize(sdlWindow, &w, &h);
if (w != original_width || h != original_height)
{
SDL_DisplayMode sdl_dm;
h = w * aspect_ratio;
if (SDL_GetCurrentDisplayMode(0, &sdl_dm) || h <= sdl_dm.h)
SDL_SetWindowSize(sdlWindow, w, h);
}
}
#endif
static void rebuild_gui_texture(void)
{
SDL_Surface *gui_surface;
int prev_w, prev_h, x, y,
w, h, depth = LCD_DEPTH < 8 ? 16 : LCD_DEPTH;
Uint32 flags = SDL_GetWindowFlags(sdlWindow);
get_window_dimensions(&w, &h);
SDL_RenderGetLogicalSize(sdlRenderer, &prev_w, &prev_h);
SDL_RenderSetLogicalSize(sdlRenderer, w, h);
if ((gui_texture = SDL_CreateTexture(sdlRenderer, SDL_MasksToPixelFormatEnum(depth,
0, 0, 0, 0), SDL_TEXTUREACCESS_STREAMING, w, h)) == NULL)
panicf("%s", SDL_GetError());
/* Did background change? */
if ((flags & SDL_WINDOW_RESIZABLE) &&
!(flags & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN)) &&
prev_w && prev_w != w)
{
SDL_GetWindowSize(sdlWindow, &x, NULL);
/* Maintain LCD's size */
float ratio = (float) x / prev_w;
SDL_SetWindowSize(sdlWindow, w * ratio, h * ratio);
/* move LCD back into previous position */
SDL_GetWindowPosition(sdlWindow, &x, &y);
if (background)
{
x -= (UI_LCD_POSX * ratio);
y -= (UI_LCD_POSY * ratio);
}
else
{
x += (UI_LCD_POSX * ratio);
y += (UI_LCD_POSY * ratio);
}
SDL_SetWindowPosition(sdlWindow, x > 0 ? x : 0, y > 0 ? y : 0);
}
if (background && picture_surface &&
(gui_surface = SDL_ConvertSurface(picture_surface, sim_lcd_surface->format, 0)))
{
SDL_UpdateTexture(gui_texture, NULL, gui_surface->pixels, gui_surface->pitch);
SDL_FreeSurface(gui_surface);
}
sdl_gui_update(lcd_surface, 0, 0, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0);
#ifdef HAVE_REMOTE_LCD
sdl_gui_update(remote_surface, 0, 0, LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
LCD_REMOTE_WIDTH, LCD_REMOTE_HEIGHT,
background ? UI_REMOTE_POSX : 0,
background? UI_REMOTE_POSY : LCD_HEIGHT);
#endif
}
void sdl_window_render(void)
{
if (new_gui_texture_needed)
{
new_gui_texture_needed = false;
if (gui_texture)
SDL_DestroyTexture(gui_texture);
rebuild_gui_texture();
}
else
{
SDL_RenderClear(sdlRenderer);
SDL_RenderCopy(sdlRenderer, gui_texture, NULL, NULL);
SDL_RenderPresent(sdlRenderer);
}
}
bool sdl_window_adjust(void)
{
int w, h;
if (!window_adjustment_needed)
return false;
window_adjustment_needed = false;
get_window_dimensions(&w, &h);
if (!(SDL_GetWindowFlags(sdlWindow) & (SDL_WINDOW_MAXIMIZED | SDL_WINDOW_FULLSCREEN))
&& display_zoom)
{
SDL_SetWindowSize(sdlWindow, display_zoom * w, display_zoom * h);
}
#if defined(__APPLE__) || defined(__WIN32)
int logical_w, logical_h;
SDL_RenderGetLogicalSize(sdlRenderer, &logical_w, &logical_h);
if (logical_w == w && logical_h == h) /* background unchanged */
restore_aspect_ratio(w, h);
#endif
display_zoom = 0;
sdl_window_render();
return true;
}
void sdl_window_adjustment_needed(bool destroy_texture)
{
window_adjustment_needed = true;
new_gui_texture_needed = destroy_texture;
/* For MacOS and Windows, we're on a main or
display thread already, and can immediately
adjust the window.
On Linux, we have to defer the update, until
it is handled by the main thread later. */
#if defined (__APPLE__) || defined(__WIN32)
sdl_window_adjust();
#endif
}
void sdl_window_setup(void)
{
int width, height;
int depth = LCD_DEPTH < 8 ? 16 : LCD_DEPTH;
Uint32 flags = SDL_WINDOW_ALLOW_HIGHDPI;
#if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
/* Fullscreen mode for maemo app */
flags |= SDL_WINDOW_FULLSCREEN;
#else
if (display_zoom == 1)
flags |= SDL_WINDOW_RESIZABLE;
#endif
if (!(picture_surface = SDL_LoadBMP("UI256.bmp")))
background = false;
get_window_dimensions(&width, &height);
if ((sdlWindow = SDL_CreateWindow(UI_TITLE, SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, width * display_zoom,
height * display_zoom , flags)) == NULL)
panicf("%s", SDL_GetError());
if ((sdlRenderer = SDL_CreateRenderer(sdlWindow, -1, SDL_RENDERER_PRESENTVSYNC)) == NULL)
panicf("%s", SDL_GetError());
/* Surface for LCD content only. Needs to fit largest LCD */
if ((sim_lcd_surface = SDL_CreateRGBSurface(0,
#ifdef HAVE_REMOTE_LCD
SIM_LCD_WIDTH > SIM_REMOTE_WIDTH ?
SIM_LCD_WIDTH : SIM_REMOTE_WIDTH,
SIM_LCD_HEIGHT > SIM_REMOTE_HEIGHT ?
SIM_LCD_HEIGHT : SIM_REMOTE_HEIGHT,
#else
SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
#endif
depth, 0, 0, 0, 0)) == NULL)
panicf("%s", SDL_GetError());
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, display_zoom == 1 ? "best" : "nearest");
display_zoom = 0; /* reset to 0 unless/until user requests a scale level change */
window_mutex = SDL_CreateMutex();
}
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