/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2006 Dan Everton * * 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 #include "lcd-sdl.h" #include "sim-ui-defines.h" #include "system.h" /* for MIN() and MAX() */ double display_zoom = 1; void sdl_update_rect(SDL_Surface *surface, int x_start, int y_start, int width, int height, int max_x, int max_y, unsigned long (*getpixel)(int, int)) { SDL_Rect dest; #if LCD_DEPTH >= 8 && (LCD_PIXELFORMAT == RGB565) \ && !defined(LCD_STRIDEFORMAT) && !defined(HAVE_LCD_SPLIT) \ && !defined(HAVE_REMOTE_LCD) SDL_Rect src; (void)max_x; (void)max_y; (void)getpixel; /* Update complete screen via one blit operation (fast) */ SDL_Surface *lcd = SDL_CreateRGBSurfaceFrom(lcd_framebuffer, LCD_FBWIDTH, LCD_FBHEIGHT, LCD_DEPTH, LCD_FBWIDTH * LCD_DEPTH/8, 0, 0, 0, 0); src.x = x_start; src.y = y_start; src.w = width; src.h = height; if (display_zoom == 1) { dest = src; SDL_BlitSurface(lcd, &src, surface, &dest); } else { /* Note: SDL_SoftStretch is currently marked as DO NOT USE but there are no real alternatives for efficent zooming. */ dest.x = src.x * display_zoom; dest.y = src.y * display_zoom; dest.w = src.w * display_zoom; dest.h = src.h * display_zoom; SDL_SoftStretch(lcd, &src, surface, &dest); } SDL_FreeSurface(lcd); #else int x, y; int xmax, ymax; /* Very slow pixel-by-pixel drawing */ ymax = y_start + height; xmax = x_start + width; if(xmax > max_x) xmax = max_x; if(ymax >= max_y) ymax = max_y; dest.w = display_zoom; dest.h = display_zoom; for (x = x_start; x < xmax; x++) { dest.x = x * display_zoom; #ifdef HAVE_LCD_SPLIT for (y = y_start; y < MIN(ymax, LCD_SPLIT_POS); y++) { dest.y = y * display_zoom; SDL_FillRect(surface, &dest, (Uint32)(getpixel(x, y) | 0x80)); } for (y = MAX(y_start, LCD_SPLIT_POS); y < ymax; y++) { dest.y = (y + LCD_SPLIT_LINES) * display_zoom ; SDL_FillRect(surface, &dest, (Uint32)getpixel(x, y)); } #else for (y = y_start; y < ymax; y++) { dest.y = y * display_zoom; SDL_FillRect(surface, &dest, (Uint32)getpixel(x, y)); } #endif } #endif } void sdl_gui_update(SDL_Surface *surface, int x_start, int y_start, int width, int height, int max_x, int max_y, int ui_x, int ui_y) { if (x_start + width > max_x) width = max_x - x_start; if (y_start + height > max_y) height = max_y - y_start; SDL_Rect src = {x_start * display_zoom, y_start * display_zoom, width * display_zoom, height * display_zoom}; SDL_Rect dest= {(ui_x + x_start) * display_zoom, (ui_y + y_start) * display_zoom, width * display_zoom, height * display_zoom}; if (surface->flags & SDL_SRCALPHA) /* alpha needs a black background */ SDL_FillRect(gui_surface, &dest, 0); SDL_BlitSurface(surface, &src, gui_surface, &dest); SDL_Flip(gui_surface); } /* set a range of bitmap indices to a gradient from startcolour to endcolour */ void sdl_set_gradient(SDL_Surface *surface, SDL_Color *start, SDL_Color *end, int first, int steps) { int i; SDL_Color palette[steps]; for (i = 0; i < steps; i++) { palette[i].r = start->r + (end->r - start->r) * i / (steps - 1); palette[i].g = start->g + (end->g - start->g) * i / (steps - 1); palette[i].b = start->b + (end->b - start->b) * i / (steps - 1); } SDL_SetPalette(surface, SDL_LOGPAL|SDL_PHYSPAL, palette, first, steps); } int lcd_get_dpi(void) { #if (CONFIG_PLATFORM & PLATFORM_MAEMO5) return 267; #elif (CONFIG_PLATFORM & PLATFORM_MAEMO4) return 225; #elif (CONFIG_PLATFORM & PLATFORM_PANDORA) return 217; #else /* TODO: find a way to query it from the OS, SDL doesn't support it * directly; for now assume the more or less standard 96 */ return 96; #endif }