X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsystem.c;h=4f8ef0fb89a4726d8b64215b98fbb362c0bc0353;hb=e8b94b38c4be1bf3ada57ade9eb3a96adb080775;hp=3d26c3ce336feade18cd77c86313cc2bcbea8622;hpb=222cd4187e6632bd904a937f167a2f1c70b8f66d;p=rocksndiamonds.git diff --git a/src/libgame/system.c b/src/libgame/system.c index 3d26c3ce..4f8ef0fb 100644 --- a/src/libgame/system.c +++ b/src/libgame/system.c @@ -1,33 +1,31 @@ /*********************************************************** -* Rocks'n'Diamonds -- McDuffin Strikes Back! * +* Artsoft Retro-Game Library * *----------------------------------------------------------* -* ©1995 Artsoft Development * -* Holger Schemel * -* 33659 Bielefeld-Senne * -* Telefon: (0521) 493245 * -* eMail: aeglos@valinor.owl.de * -* aeglos@uni-paderborn.de * -* q99492@pbhrzx.uni-paderborn.de * +* (c) 1994-2002 Artsoft Entertainment * +* Holger Schemel * +* Detmolder Strasse 189 * +* 33604 Bielefeld * +* Germany * +* e-mail: info@artsoft.org * *----------------------------------------------------------* -* system.c * +* system.c * ***********************************************************/ -#include "libgame.h" +#include +#include -/* ========================================================================= */ -/* internal variables */ -/* ========================================================================= */ +#include "platform.h" -Display *display = NULL; -Visual *visual = NULL; -int screen = 0; -Colormap cmap = None; - -DrawWindow window = None; -DrawBuffer backbuffer = None; -GC gc = None; +#if defined(PLATFORM_MSDOS) +#include +#endif -int FrameCounter = 0; +#include "system.h" +#include "image.h" +#include "sound.h" +#include "setup.h" +#include "joystick.h" +#include "misc.h" /* ========================================================================= */ @@ -35,55 +33,287 @@ int FrameCounter = 0; /* ========================================================================= */ struct ProgramInfo program; +struct OptionInfo options; struct VideoSystemInfo video; struct AudioSystemInfo audio; -struct OptionInfo options; +struct GfxInfo gfx; +struct ArtworkInfo artwork; +struct JoystickInfo joystick; +struct SetupInfo setup; + +LevelDirTree *leveldir_first_all = NULL; +LevelDirTree *leveldir_first = NULL; +LevelDirTree *leveldir_current = NULL; +int level_nr; + +Display *display = NULL; +Visual *visual = NULL; +int screen = 0; +Colormap cmap = None; + +DrawWindow *window = NULL; +DrawBuffer *backbuffer = NULL; +DrawBuffer *drawto = NULL; + +int button_status = MB_NOT_PRESSED; +boolean motion_status = FALSE; + +int redraw_mask = REDRAW_NONE; +int redraw_tiles = 0; + +int FrameCounter = 0; /* ========================================================================= */ -/* video functions */ +/* init/close functions */ /* ========================================================================= */ -inline static int GetRealDepth(int depth) +void InitProgramInfo(char *argv0, + char *userdata_directory, char *program_title, + char *window_title, char *icon_title, + char *x11_icon_filename, char *x11_iconmask_filename, + char *msdos_cursor_filename, + char *cookie_prefix, char *filename_prefix, + int program_version) { - return (depth == DEFAULT_DEPTH ? video.default_depth : depth); -} + program.command_basepath = getBasePath(argv0); + program.command_basename = getBaseName(argv0); -inline void InitProgramInfo(char *command_name, char *program_title, - char *window_title, char *icon_title, - char *x11_icon_filename, - char *x11_iconmask_filename, - char *msdos_pointer_filename) -{ - program.command_name = command_name; + program.userdata_directory = userdata_directory; program.program_title = program_title; program.window_title = window_title; program.icon_title = icon_title; program.x11_icon_filename = x11_icon_filename; program.x11_iconmask_filename = x11_iconmask_filename; - program.msdos_pointer_filename = msdos_pointer_filename; + program.msdos_cursor_filename = msdos_cursor_filename; + + program.cookie_prefix = cookie_prefix; + program.filename_prefix = filename_prefix; + + program.version_major = VERSION_MAJOR(program_version); + program.version_minor = VERSION_MINOR(program_version); + program.version_patch = VERSION_PATCH(program_version); + + program.error_filename = getErrorFilename(ERROR_BASENAME); + program.error_file = stderr; +} + +void InitExitFunction(void (*exit_function)(int)) +{ + program.exit_function = exit_function; + + /* set signal handlers to custom exit function */ + signal(SIGINT, exit_function); + signal(SIGTERM, exit_function); + +#if defined(TARGET_SDL) + /* set exit function to automatically cleanup SDL stuff after exit() */ + atexit(SDL_Quit); +#endif } -inline void InitScrollbufferSize(int scrollbuffer_width, - int scrollbuffer_height) +void InitPlatformDependentStuff(void) +{ +#if defined(PLATFORM_MSDOS) + _fmode = O_BINARY; +#endif + +#if defined(PLATFORM_WIN32) || defined(PLATFORM_MSDOS) + openErrorFile(); +#endif + +#if defined(TARGET_SDL) + if (SDL_Init(SDL_INIT_EVENTTHREAD | SDL_INIT_NOPARACHUTE) < 0) + Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError()); + + SDLNet_Init(); +#endif +} + +void ClosePlatformDependentStuff(void) +{ +#if defined(PLATFORM_WIN32) || defined(PLATFORM_MSDOS) + closeErrorFile(); +#endif + +#if defined(PLATFORM_MSDOS) + dumpErrorFile(); +#endif +} + +void InitGfxFieldInfo(int sx, int sy, int sxsize, int sysize, + int real_sx, int real_sy, + int full_sxsize, int full_sysize, + Bitmap *field_save_buffer) +{ + gfx.sx = sx; + gfx.sy = sy; + gfx.sxsize = sxsize; + gfx.sysize = sysize; + gfx.real_sx = real_sx; + gfx.real_sy = real_sy; + gfx.full_sxsize = full_sxsize; + gfx.full_sysize = full_sysize; + + gfx.field_save_buffer = field_save_buffer; + + gfx.background_bitmap = NULL; + gfx.background_bitmap_mask = REDRAW_NONE; + + SetDrawDeactivationMask(REDRAW_NONE); /* do not deactivate drawing */ + SetDrawBackgroundMask(REDRAW_NONE); /* deactivate masked drawing */ +} + +void InitGfxDoor1Info(int dx, int dy, int dxsize, int dysize) +{ + gfx.dx = dx; + gfx.dy = dy; + gfx.dxsize = dxsize; + gfx.dysize = dysize; +} + +void InitGfxDoor2Info(int vx, int vy, int vxsize, int vysize) +{ + gfx.vx = vx; + gfx.vy = vy; + gfx.vxsize = vxsize; + gfx.vysize = vysize; +} + +void InitGfxScrollbufferInfo(int scrollbuffer_width, int scrollbuffer_height) { /* currently only used by MSDOS code to alloc VRAM buffer, if available */ - video.scrollbuffer_width = scrollbuffer_width; - video.scrollbuffer_height = scrollbuffer_height; + gfx.scrollbuffer_width = scrollbuffer_width; + gfx.scrollbuffer_height = scrollbuffer_height; +} + +void SetDrawDeactivationMask(int draw_deactivation_mask) +{ + gfx.draw_deactivation_mask = draw_deactivation_mask; +} + +void SetDrawBackgroundMask(int draw_background_mask) +{ + gfx.draw_background_mask = draw_background_mask; +} + +static void DrawBitmapFromTile(Bitmap *bitmap, Bitmap *tile, + int dest_x, int dest_y, int width, int height) +{ + int bitmap_xsize = width; + int bitmap_ysize = height; + int tile_xsize = tile->width; + int tile_ysize = tile->height; + int tile_xsteps = (bitmap_xsize + tile_xsize - 1) / tile_xsize; + int tile_ysteps = (bitmap_ysize + tile_ysize - 1) / tile_ysize; + int x, y; + + for (y = 0; y < tile_ysteps; y++) + { + for (x = 0; x < tile_xsteps; x++) + { + int draw_x = dest_x + x * tile_xsize; + int draw_y = dest_y + y * tile_ysize; + int draw_xsize = MIN(tile_xsize, bitmap_xsize - x * tile_xsize); + int draw_ysize = MIN(tile_ysize, bitmap_ysize - y * tile_ysize); + + BlitBitmap(tile, bitmap, 0, 0, draw_xsize, draw_ysize, draw_x, draw_y); + } + } +} + +void SetBackgroundBitmap(Bitmap *background_bitmap_tile, int mask) +{ + if (background_bitmap_tile != NULL) + gfx.background_bitmap_mask |= mask; + else + gfx.background_bitmap_mask &= ~mask; + + if (gfx.background_bitmap == NULL) + gfx.background_bitmap = CreateBitmap(video.width, video.height, + DEFAULT_DEPTH); + + if (background_bitmap_tile == NULL) /* empty background requested */ + return; + + if (mask == REDRAW_FIELD) + DrawBitmapFromTile(gfx.background_bitmap, background_bitmap_tile, + gfx.real_sx, gfx.real_sy, + gfx.full_sxsize, gfx.full_sysize); + else if (mask == REDRAW_DOOR_1) + { + DrawBitmapFromTile(gfx.background_bitmap, background_bitmap_tile, + gfx.dx, gfx.dy, + gfx.dxsize, gfx.dysize); + } +} + +void SetMainBackgroundBitmap(Bitmap *background_bitmap_tile) +{ + SetBackgroundBitmap(background_bitmap_tile, REDRAW_FIELD); } -inline void InitVideoDisplay(void) +void SetDoorBackgroundBitmap(Bitmap *background_bitmap_tile) { -#ifdef TARGET_SDL + SetBackgroundBitmap(background_bitmap_tile, REDRAW_DOOR_1); +} + + +/* ========================================================================= */ +/* video functions */ +/* ========================================================================= */ + +inline static int GetRealDepth(int depth) +{ + return (depth == DEFAULT_DEPTH ? video.default_depth : depth); +} + +inline static void sysFillRectangle(Bitmap *bitmap, int x, int y, + int width, int height, Pixel color) +{ +#if defined(TARGET_SDL) + SDLFillRectangle(bitmap, x, y, width, height, color); +#else + X11FillRectangle(bitmap, x, y, width, height, color); +#endif +} + +inline static void sysCopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap, + int src_x, int src_y, int width, int height, + int dst_x, int dst_y, int mask_mode) +{ +#if defined(TARGET_SDL) + SDLCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y, mask_mode); +#else + X11CopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y, mask_mode); +#endif +} + +void InitVideoDisplay(void) +{ +#if defined(TARGET_SDL) SDLInitVideoDisplay(); #else X11InitVideoDisplay(); #endif } -inline void InitVideoBuffer(DrawBuffer *backbuffer, DrawWindow *window, - int width, int height, int depth, - boolean fullscreen) +void CloseVideoDisplay(void) +{ + KeyboardAutoRepeatOn(); + +#if defined(TARGET_SDL) + SDL_QuitSubSystem(SDL_INIT_VIDEO); +#else + if (display) + XCloseDisplay(display); +#endif +} + +void InitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window, + int width, int height, int depth, boolean fullscreen) { video.width = width; video.height = height; @@ -91,121 +321,327 @@ inline void InitVideoBuffer(DrawBuffer *backbuffer, DrawWindow *window, video.fullscreen_available = FULLSCREEN_STATUS; video.fullscreen_enabled = FALSE; -#ifdef TARGET_SDL +#if defined(TARGET_SDL) SDLInitVideoBuffer(backbuffer, window, fullscreen); #else X11InitVideoBuffer(backbuffer, window); #endif } -inline Bitmap CreateBitmap(int width, int height, int depth) +Bitmap *CreateBitmapStruct(void) { +#if defined(TARGET_SDL) + return checked_calloc(sizeof(struct SDLSurfaceInfo)); +#else + return checked_calloc(sizeof(struct X11DrawableInfo)); +#endif +} + +Bitmap *CreateBitmap(int width, int height, int depth) +{ + Bitmap *new_bitmap = CreateBitmapStruct(); int real_depth = GetRealDepth(depth); -#ifdef TARGET_SDL - SDL_Surface *surface_tmp, *surface_native; +#if defined(TARGET_SDL) + SDLCreateBitmapContent(new_bitmap, width, height, real_depth); +#else + X11CreateBitmapContent(new_bitmap, width, height, real_depth); +#endif - if ((surface_tmp = SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, - real_depth, 0, 0, 0, 0)) - == NULL) - Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError()); + new_bitmap->width = width; + new_bitmap->height = height; - if ((surface_native = SDL_DisplayFormat(surface_tmp)) == NULL) - Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError()); + return new_bitmap; +} - SDL_FreeSurface(surface_tmp); +inline static void FreeBitmapPointers(Bitmap *bitmap) +{ + if (bitmap == NULL) + return; - return surface_native; +#if defined(TARGET_SDL) + SDLFreeBitmapPointers(bitmap); #else - Pixmap pixmap; + X11FreeBitmapPointers(bitmap); +#endif - if (!(pixmap = XCreatePixmap(display, window, width, height, real_depth))) - Error(ERR_EXIT, "cannot create pixmap"); + checked_free(bitmap->source_filename); + bitmap->source_filename = NULL; +} - return pixmap; +inline static void TransferBitmapPointers(Bitmap *src_bitmap, + Bitmap *dst_bitmap) +{ + if (src_bitmap == NULL || dst_bitmap == NULL) + return; + + FreeBitmapPointers(dst_bitmap); + + *dst_bitmap = *src_bitmap; +} + +void FreeBitmap(Bitmap *bitmap) +{ + if (bitmap == NULL) + return; + + FreeBitmapPointers(bitmap); + + free(bitmap); +} + +void CloseWindow(DrawWindow *window) +{ +#if defined(TARGET_X11) + if (window->drawable) + { + XUnmapWindow(display, window->drawable); + XDestroyWindow(display, window->drawable); + } + if (window->gc) + XFreeGC(display, window->gc); #endif } -inline void FreeBitmap(Bitmap bitmap) +inline static boolean CheckDrawingArea(int x, int y, int width, int height, + int draw_mask) +{ + if (draw_mask == REDRAW_NONE) + return FALSE; + + if (draw_mask & REDRAW_ALL) + return TRUE; + + if ((draw_mask & REDRAW_FIELD) && x < gfx.real_sx + gfx.full_sxsize) + return TRUE; + + if ((draw_mask & REDRAW_DOOR_1) && x >= gfx.dx && y < gfx.dy + gfx.dysize) + return TRUE; + + if ((draw_mask & REDRAW_DOOR_2) && x >= gfx.dx && y >= gfx.vy) + return TRUE; + + return FALSE; +} + +boolean DrawingDeactivated(int x, int y, int width, int height) { -#ifdef TARGET_SDL - SDL_FreeSurface(bitmap); + return CheckDrawingArea(x, y, width, height, gfx.draw_deactivation_mask); +} + +boolean DrawingOnBackground(int x, int y) +{ + return (CheckDrawingArea(x, y, 1, 1, gfx.background_bitmap_mask) && + CheckDrawingArea(x, y, 1, 1, gfx.draw_background_mask)); +} + +void BlitBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap, + int src_x, int src_y, int width, int height, + int dst_x, int dst_y) +{ + if (DrawingDeactivated(dst_x, dst_y, width, height)) + return; + + sysCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y, BLIT_OPAQUE); +} + +void FadeScreen(Bitmap *bitmap_cross, int fade_mode, int fade_delay, + int post_delay) +{ +#if defined(TARGET_SDL) + SDLFadeScreen(bitmap_cross, fade_mode, fade_delay, post_delay); #else - XFreePixmap(display, bitmap); + X11FadeScreen(bitmap_cross, fade_mode, fade_delay, post_delay); #endif } -inline void ClearRectangle(Bitmap bitmap, int x, int y, int width, int height) +void FillRectangle(Bitmap *bitmap, int x, int y, int width, int height, + Pixel color) { -#ifdef TARGET_SDL - SDLFillRectangle(bitmap, x, y, width, height, 0x000000); -#else - XFillRectangle(display, bitmap, gc, x, y, width, height); + if (DrawingDeactivated(x, y, width, height)) + return; + + sysFillRectangle(bitmap, x, y, width, height, color); +} + +void ClearRectangle(Bitmap *bitmap, int x, int y, int width, int height) +{ + FillRectangle(bitmap, x, y, width, height, BLACK_PIXEL); +} + +void ClearRectangleOnBackground(Bitmap *bitmap, int x, int y, + int width, int height) +{ + if (DrawingOnBackground(x, y)) + BlitBitmap(gfx.background_bitmap, bitmap, x, y, width, height, x, y); + else + ClearRectangle(bitmap, x, y, width, height); +} + +void SetClipMask(Bitmap *bitmap, GC clip_gc, Pixmap clip_pixmap) +{ +#if defined(TARGET_X11) + if (clip_gc) + { + bitmap->clip_gc = clip_gc; + XSetClipMask(display, bitmap->clip_gc, clip_pixmap); + } +#endif +} + +void SetClipOrigin(Bitmap *bitmap, GC clip_gc, int clip_x, int clip_y) +{ +#if defined(TARGET_X11) + if (clip_gc) + { + bitmap->clip_gc = clip_gc; + XSetClipOrigin(display, bitmap->clip_gc, clip_x, clip_y); + } #endif } -inline void BlitBitmap(Bitmap src_bitmap, Bitmap dst_bitmap, - int src_x, int src_y, - int width, int height, - int dst_x, int dst_y) +void BlitBitmapMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap, + int src_x, int src_y, int width, int height, + int dst_x, int dst_y) +{ + if (DrawingDeactivated(dst_x, dst_y, width, height)) + return; + + sysCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y, BLIT_MASKED); +} + +void BlitBitmapOnBackground(Bitmap *src_bitmap, Bitmap *dst_bitmap, + int src_x, int src_y, int width, int height, + int dst_x, int dst_y) { -#ifdef TARGET_SDL - SDLCopyArea(src_bitmap, dst_bitmap, - src_x, src_y, width, height, dst_x, dst_y); + if (DrawingOnBackground(dst_x, dst_y)) + { + /* draw background */ + BlitBitmap(gfx.background_bitmap, dst_bitmap, dst_x, dst_y, width, height, + dst_x, dst_y); + + /* draw foreground */ + SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc, + dst_x - src_x, dst_y - src_y); + BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y); + } + else + BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y, width, height, + dst_x, dst_y); +} + +void DrawSimpleBlackLine(Bitmap *bitmap, int from_x, int from_y, + int to_x, int to_y) +{ +#if defined(TARGET_SDL) + SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, BLACK_PIXEL); #else - XCopyArea(display, src_bitmap, dst_bitmap, gc, - src_x, src_y, width, height, dst_x, dst_y); + X11DrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, BLACK_PIXEL); #endif } -#ifndef TARGET_SDL -static GC last_clip_gc = 0; /* needed for XCopyArea() through clip mask */ +void DrawSimpleWhiteLine(Bitmap *bitmap, int from_x, int from_y, + int to_x, int to_y) +{ +#if defined(TARGET_SDL) + SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL); +#else + X11DrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL); #endif +} -inline void SetClipMask(GC clip_gc, Pixmap clip_pixmap) +#if !defined(TARGET_X11_NATIVE) +void DrawLine(Bitmap *bitmap, int from_x, int from_y, + int to_x, int to_y, Pixel pixel, int line_width) { -#ifndef TARGET_SDL - XSetClipMask(display, clip_gc, clip_pixmap); - last_clip_gc = clip_gc; + int x, y; + + for (x = 0; x < line_width; x++) + { + for (y = 0; y < line_width; y++) + { + int dx = x - line_width / 2; + int dy = y - line_width / 2; + + if ((x == 0 && y == 0) || + (x == 0 && y == line_width - 1) || + (x == line_width - 1 && y == 0) || + (x == line_width - 1 && y == line_width - 1)) + continue; + +#if defined(TARGET_SDL) + SDLDrawLine(bitmap, + from_x + dx, from_y + dy, to_x + dx, to_y + dy, pixel); +#elif defined(TARGET_ALLEGRO) + AllegroDrawLine(bitmap->drawable, from_x + dx, from_y + dy, + to_x + dx, to_y + dy, pixel); #endif + } + } } +#endif -inline void SetClipOrigin(GC clip_gc, int clip_x, int clip_y) +void DrawLines(Bitmap *bitmap, struct XY *points, int num_points, Pixel pixel) { -#ifndef TARGET_SDL - XSetClipOrigin(display, clip_gc, clip_x, clip_y); - last_clip_gc = clip_gc; +#if !defined(TARGET_X11_NATIVE) + int line_width = 4; + int i; + + for (i = 0; i < num_points - 1; i++) + DrawLine(bitmap, points[i].x, points[i].y, + points[i + 1].x, points[i + 1].y, pixel, line_width); + + /* + SDLDrawLines(bitmap->surface, points, num_points, pixel); + */ +#else + XSetForeground(display, bitmap->line_gc[1], pixel); + XDrawLines(display, bitmap->drawable, bitmap->line_gc[1], + (XPoint *)points, num_points, CoordModeOrigin); #endif } -inline void BlitBitmapMasked(Bitmap src_bitmap, Bitmap dst_bitmap, - int src_x, int src_y, - int width, int height, - int dst_x, int dst_y) +Pixel GetPixel(Bitmap *bitmap, int x, int y) { -#ifdef TARGET_SDL - SDLCopyArea(src_bitmap, dst_bitmap, - src_x, src_y, width, height, dst_x, dst_y); + if (x < 0 || x >= bitmap->width || + y < 0 || y >= bitmap->height) + return BLACK_PIXEL; + +#if defined(TARGET_SDL) + return SDLGetPixel(bitmap, x, y); +#elif defined(TARGET_ALLEGRO) + return AllegroGetPixel(bitmap->drawable, x, y); #else - XCopyArea(display, src_bitmap, dst_bitmap, last_clip_gc, - src_x, src_y, width, height, dst_x, dst_y); + return X11GetPixel(bitmap, x, y); #endif } -inline void DrawSimpleWhiteLine(Bitmap bitmap, int from_x, int from_y, - int to_x, int to_y) +Pixel GetPixelFromRGB(Bitmap *bitmap, unsigned int color_r, + unsigned int color_g, unsigned int color_b) { -#ifdef TARGET_SDL - SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, 0xffffff); +#if defined(TARGET_SDL) + return SDL_MapRGB(bitmap->surface->format, color_r, color_g, color_b); +#elif defined(TARGET_ALLEGRO) + return AllegroAllocColorCell(color_r << 8, color_g << 8, color_b << 8); #else - XSetForeground(display, gc, WhitePixel(display, screen)); - XDrawLine(display, bitmap, gc, from_x, from_y, to_x, to_y); - XSetForeground(display, gc, BlackPixel(display, screen)); + return X11GetPixelFromRGB(color_r, color_g, color_b); #endif } +Pixel GetPixelFromRGBcompact(Bitmap *bitmap, unsigned int color) +{ + unsigned int color_r = (color >> 16) & 0xff; + unsigned int color_g = (color >> 8) & 0xff; + unsigned int color_b = (color >> 0) & 0xff; + + return GetPixelFromRGB(bitmap, color_r, color_g, color_b); +} + /* execute all pending screen drawing operations */ -inline void FlushDisplay(void) +void FlushDisplay(void) { #ifndef TARGET_SDL XFlush(display); @@ -213,54 +649,56 @@ inline void FlushDisplay(void) } /* execute and wait for all pending screen drawing operations */ -inline void SyncDisplay(void) +void SyncDisplay(void) { #ifndef TARGET_SDL XSync(display, FALSE); #endif } -inline void KeyboardAutoRepeatOn(void) +void KeyboardAutoRepeatOn(void) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY / 2, SDL_DEFAULT_REPEAT_INTERVAL / 2); SDL_EnableUNICODE(1); #else - XAutoRepeatOn(display); + if (display) + XAutoRepeatOn(display); #endif } -inline void KeyboardAutoRepeatOff(void) +void KeyboardAutoRepeatOff(void) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) SDL_EnableKeyRepeat(0, SDL_DEFAULT_REPEAT_INTERVAL); SDL_EnableUNICODE(0); #else - XAutoRepeatOff(display); + if (display) + XAutoRepeatOff(display); #endif } -inline boolean PointerInWindow(DrawWindow window) +boolean PointerInWindow(DrawWindow *window) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) return TRUE; #else - DrawWindow root, child; + Window root, child; int root_x, root_y; unsigned int mask; int win_x, win_y; /* if XQueryPointer() returns False, the pointer is not on the same screen as the specified window */ - return XQueryPointer(display, window, &root, &child, &root_x, &root_y, - &win_x, &win_y, &mask); + return XQueryPointer(display, window->drawable, &root, &child, + &root_x, &root_y, &win_x, &win_y, &mask); #endif } -inline boolean SetVideoMode(boolean fullscreen) +boolean SetVideoMode(boolean fullscreen) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) return SDLSetVideoMode(&backbuffer, fullscreen); #else boolean success = TRUE; @@ -279,9 +717,9 @@ inline boolean SetVideoMode(boolean fullscreen) #endif } -inline boolean ChangeVideoModeIfNeeded(boolean fullscreen) +boolean ChangeVideoModeIfNeeded(boolean fullscreen) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) if ((fullscreen && !video.fullscreen_enabled && video.fullscreen_available)|| (!fullscreen && video.fullscreen_enabled)) fullscreen = SetVideoMode(fullscreen); @@ -290,51 +728,418 @@ inline boolean ChangeVideoModeIfNeeded(boolean fullscreen) return fullscreen; } +Bitmap *LoadImage(char *filename) +{ + Bitmap *new_bitmap; + +#if defined(TARGET_SDL) + new_bitmap = SDLLoadImage(filename); +#else + new_bitmap = X11LoadImage(filename); +#endif + + if (new_bitmap) + new_bitmap->source_filename = getStringCopy(filename); + + return new_bitmap; +} + +Bitmap *LoadCustomImage(char *basename) +{ + char *filename = getCustomImageFilename(basename); + Bitmap *new_bitmap; -/* ========================================================================= */ -/* audio functions */ -/* ========================================================================= */ + if (filename == NULL) + Error(ERR_EXIT, "LoadCustomImage(): cannot find file '%s'", basename); + + if ((new_bitmap = LoadImage(filename)) == NULL) + Error(ERR_EXIT, "LoadImage() failed: %s", GetError()); -inline boolean OpenAudio(struct AudioSystemInfo *audio) + return new_bitmap; +} + +void ReloadCustomImage(Bitmap *bitmap, char *basename) { - audio->sound_available = FALSE; - audio->loops_available = FALSE; - audio->soundserver_pipe[0] = audio->soundserver_pipe[1] = 0; - audio->soundserver_pid = 0; - audio->device_name = NULL; - audio->device_fd = 0; + char *filename = getCustomImageFilename(basename); + Bitmap *new_bitmap; + + if (filename == NULL) /* (should never happen) */ + { + Error(ERR_WARN, "ReloadCustomImage(): cannot find file '%s'", basename); + return; + } + + if (strEqual(filename, bitmap->source_filename)) + { + /* The old and new image are the same (have the same filename and path). + This usually means that this image does not exist in this graphic set + and a fallback to the existing image is done. */ + + return; + } + + if ((new_bitmap = LoadImage(filename)) == NULL) + { + Error(ERR_WARN, "LoadImage() failed: %s", GetError()); + return; + } + + if (bitmap->width != new_bitmap->width || + bitmap->height != new_bitmap->height) + { + Error(ERR_WARN, "ReloadCustomImage: new image '%s' has wrong dimensions", + filename); + FreeBitmap(new_bitmap); + return; + } + + TransferBitmapPointers(new_bitmap, bitmap); + free(new_bitmap); +} + +Bitmap *ZoomBitmap(Bitmap *src_bitmap, int zoom_width, int zoom_height) +{ + Bitmap *dst_bitmap = CreateBitmap(zoom_width, zoom_height, DEFAULT_DEPTH); #if defined(TARGET_SDL) - if (SDLOpenAudio()) + SDLZoomBitmap(src_bitmap, dst_bitmap); +#else + X11ZoomBitmap(src_bitmap, dst_bitmap); +#endif + + return dst_bitmap; +} + +static void CreateScaledBitmaps(Bitmap *old_bitmap, int zoom_factor, + boolean create_small_bitmaps) +{ + Bitmap swap_bitmap; + Bitmap *new_bitmap, *tmp_bitmap_1, *tmp_bitmap_2, *tmp_bitmap_4,*tmp_bitmap_8; + int width_1, height_1, width_2, height_2, width_4, height_4, width_8,height_8; + int new_width, new_height; + + /* calculate new image dimensions for normal sized image */ + width_1 = old_bitmap->width * zoom_factor; + height_1 = old_bitmap->height * zoom_factor; + + /* get image with normal size (this might require scaling up) */ + if (zoom_factor != 1) + tmp_bitmap_1 = ZoomBitmap(old_bitmap, width_1, height_1); + else + tmp_bitmap_1 = old_bitmap; + + /* this is only needed to make compilers happy */ + tmp_bitmap_2 = tmp_bitmap_4 = tmp_bitmap_8 = NULL; + + if (create_small_bitmaps) { - audio->sound_available = TRUE; - audio->loops_available = TRUE; + /* calculate new image dimensions for small images */ + width_2 = width_1 / 2; + height_2 = height_1 / 2; + width_4 = width_1 / 4; + height_4 = height_1 / 4; + width_8 = width_1 / 8; + height_8 = height_1 / 8; + + /* get image with 1/2 of normal size (for use in the level editor) */ + if (zoom_factor != 2) + tmp_bitmap_2 = ZoomBitmap(tmp_bitmap_1, width_1 / 2, height_1 / 2); + else + tmp_bitmap_2 = old_bitmap; + + /* get image with 1/4 of normal size (for use in the level editor) */ + if (zoom_factor != 4) + tmp_bitmap_4 = ZoomBitmap(tmp_bitmap_2, width_2 / 2, height_2 / 2); + else + tmp_bitmap_4 = old_bitmap; + + /* get image with 1/8 of normal size (for use on the preview screen) */ + if (zoom_factor != 8) + tmp_bitmap_8 = ZoomBitmap(tmp_bitmap_4, width_4 / 2, height_4 / 2); + else + tmp_bitmap_8 = old_bitmap; } -#elif defined(PLATFORM_MSDOS) - if (MSDOSOpenAudio()) + + /* if image was scaled up, create new clipmask for normal size image */ + if (zoom_factor != 1) { - audio->sound_available = TRUE; - audio->loops_available = TRUE; +#if defined(TARGET_X11) + if (old_bitmap->clip_mask) + XFreePixmap(display, old_bitmap->clip_mask); + + old_bitmap->clip_mask = + Pixmap_to_Mask(tmp_bitmap_1->drawable, width_1, height_1); + + XSetClipMask(display, old_bitmap->stored_clip_gc, old_bitmap->clip_mask); +#else + SDL_Surface *tmp_surface_1 = tmp_bitmap_1->surface; + + if (old_bitmap->surface_masked) + SDL_FreeSurface(old_bitmap->surface_masked); + + SDL_SetColorKey(tmp_surface_1, SDL_SRCCOLORKEY, + SDL_MapRGB(tmp_surface_1->format, 0x00, 0x00, 0x00)); + if ((old_bitmap->surface_masked = SDL_DisplayFormat(tmp_surface_1)) ==NULL) + Error(ERR_EXIT, "SDL_DisplayFormat() failed"); + SDL_SetColorKey(tmp_surface_1, 0, 0); /* reset transparent pixel */ +#endif } -#elif defined(PLATFORM_UNIX) - UnixOpenAudio(audio); + + if (create_small_bitmaps) + { + new_width = width_1; + new_height = height_1 + (height_1 + 1) / 2; /* prevent odd height */ + + new_bitmap = CreateBitmap(new_width, new_height, DEFAULT_DEPTH); + + BlitBitmap(tmp_bitmap_1, new_bitmap, 0, 0, width_1, height_1, 0, 0); + BlitBitmap(tmp_bitmap_2, new_bitmap, 0, 0, width_1 / 2, height_1 / 2, + 0, height_1); + BlitBitmap(tmp_bitmap_4, new_bitmap, 0, 0, width_1 / 4, height_1 / 4, + width_1 / 2, height_1); + BlitBitmap(tmp_bitmap_8, new_bitmap, 0, 0, width_1 / 8, height_1 / 8, + 3 * width_1 / 4, height_1); + } + else + { + new_width = width_1; + new_height = height_1; + + new_bitmap = tmp_bitmap_1; /* directly use tmp_bitmap_1 as new bitmap */ + } + + if (create_small_bitmaps) + { + /* if no small bitmaps created, tmp_bitmap_1 is used as new bitmap now */ + if (zoom_factor != 1) + FreeBitmap(tmp_bitmap_1); + + if (zoom_factor != 2) + FreeBitmap(tmp_bitmap_2); + + if (zoom_factor != 4) + FreeBitmap(tmp_bitmap_4); + + if (zoom_factor != 8) + FreeBitmap(tmp_bitmap_8); + } + + /* replace image with extended image (containing 1/1, 1/2, 1/4, 1/8 size) */ +#if defined(TARGET_SDL) + swap_bitmap.surface = old_bitmap->surface; + old_bitmap->surface = new_bitmap->surface; + new_bitmap->surface = swap_bitmap.surface; +#else + swap_bitmap.drawable = old_bitmap->drawable; + old_bitmap->drawable = new_bitmap->drawable; + new_bitmap->drawable = swap_bitmap.drawable; #endif - return audio->sound_available; + old_bitmap->width = new_bitmap->width; + old_bitmap->height = new_bitmap->height; + + FreeBitmap(new_bitmap); /* this actually frees the _old_ bitmap now */ +} + +void CreateBitmapWithSmallBitmaps(Bitmap *old_bitmap, int zoom_factor) +{ + CreateScaledBitmaps(old_bitmap, zoom_factor, TRUE); } -inline void CloseAudio(struct AudioSystemInfo *audio) +void ScaleBitmap(Bitmap *old_bitmap, int zoom_factor) +{ + CreateScaledBitmaps(old_bitmap, zoom_factor, FALSE); +} + + +/* ------------------------------------------------------------------------- */ +/* mouse pointer functions */ +/* ------------------------------------------------------------------------- */ + +#if !defined(PLATFORM_MSDOS) +/* XPM */ +static const char *cursor_image_playfield[] = +{ + /* width height num_colors chars_per_pixel */ + " 16 16 3 1", + + /* colors */ + "X c #000000", + ". c #ffffff", + " c None", + +#if 1 + /* some people complained about a "white dot" on the screen and thought it + was a graphical error... OK, let's just remove the whole pointer :-) */ + + /* pixels */ + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + + /* hot spot */ + "0,0" + +#else + + /* pixels */ + " X ", + "X.X ", + " X ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + " ", + + /* hot spot */ + "1,1" +#endif +}; + +#if defined(TARGET_SDL) +static const int cursor_bit_order = BIT_ORDER_MSB; +#elif defined(TARGET_X11_NATIVE) +static const int cursor_bit_order = BIT_ORDER_LSB; +#endif + +static struct MouseCursorInfo *get_cursor_from_image(const char **image) +{ + struct MouseCursorInfo *cursor; + boolean bit_order_msb = (cursor_bit_order == BIT_ORDER_MSB); + int header_lines = 4; + int x, y, i; + + cursor = checked_calloc(sizeof(struct MouseCursorInfo)); + + sscanf(image[0], " %d %d ", &cursor->width, &cursor->height); + + i = -1; + for (y = 0; y < cursor->width; y++) + { + for (x = 0; x < cursor->height; x++) + { + int bit_nr = x % 8; + int bit_mask = 0x01 << (bit_order_msb ? 7 - bit_nr : bit_nr ); + + if (bit_nr == 0) + { + i++; + cursor->data[i] = cursor->mask[i] = 0; + } + + switch (image[header_lines + y][x]) + { + case 'X': + cursor->data[i] |= bit_mask; + cursor->mask[i] |= bit_mask; + break; + + case '.': + cursor->mask[i] |= bit_mask; + break; + + case ' ': + break; + } + } + } + + sscanf(image[header_lines + y], "%d,%d", &cursor->hot_x, &cursor->hot_y); + + return cursor; +} +#endif /* !PLATFORM_MSDOS */ + +void SetMouseCursor(int mode) +{ +#if !defined(PLATFORM_MSDOS) + static struct MouseCursorInfo *cursor_playfield = NULL; + + if (cursor_playfield == NULL) + cursor_playfield = get_cursor_from_image(cursor_image_playfield); + +#if defined(TARGET_SDL) + SDLSetMouseCursor(mode == CURSOR_PLAYFIELD ? cursor_playfield : NULL); +#elif defined(TARGET_X11_NATIVE) + X11SetMouseCursor(mode == CURSOR_PLAYFIELD ? cursor_playfield : NULL); +#endif +#endif +} + + +/* ========================================================================= */ +/* audio functions */ +/* ========================================================================= */ + +void OpenAudio(void) +{ + /* always start with reliable default values */ + audio.sound_available = FALSE; + audio.music_available = FALSE; + audio.loops_available = FALSE; + + audio.sound_enabled = FALSE; + audio.sound_deactivated = FALSE; + + audio.mixer_pipe[0] = audio.mixer_pipe[1] = 0; + audio.mixer_pid = 0; + audio.device_name = NULL; + audio.device_fd = -1; + + audio.num_channels = 0; + audio.music_channel = 0; + audio.first_sound_channel = 0; + +#if defined(TARGET_SDL) + SDLOpenAudio(); +#elif defined(PLATFORM_UNIX) + UnixOpenAudio(); +#elif defined(PLATFORM_MSDOS) + MSDOSOpenAudio(); +#endif +} + +void CloseAudio(void) { #if defined(TARGET_SDL) SDLCloseAudio(); +#elif defined(PLATFORM_UNIX) + UnixCloseAudio(); #elif defined(PLATFORM_MSDOS) MSDOSCloseAudio(); -#elif defined(PLATFORM_UNIX) - UnixCloseAudio(audio); #endif - audio->sound_available = FALSE; - audio->loops_available = FALSE; + audio.sound_enabled = FALSE; +} + +void SetAudioMode(boolean enabled) +{ + if (!audio.sound_available) + return; + + audio.sound_enabled = enabled; } @@ -342,35 +1147,45 @@ inline void CloseAudio(struct AudioSystemInfo *audio) /* event functions */ /* ========================================================================= */ -inline void InitEventFilter(EventFilter filter_function) +void InitEventFilter(EventFilter filter_function) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) /* set event filter to filter out certain events */ SDL_SetEventFilter(filter_function); #endif } -inline boolean PendingEvent(void) +boolean PendingEvent(void) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) return (SDL_PollEvent(NULL) ? TRUE : FALSE); #else return (XPending(display) ? TRUE : FALSE); #endif } -inline void NextEvent(Event *event) +void NextEvent(Event *event) { -#ifdef TARGET_SDL - SDL_WaitEvent(event); +#if defined(TARGET_SDL) + SDLNextEvent(event); #else XNextEvent(display, event); #endif } -inline Key GetEventKey(KeyEvent *event, boolean with_modifiers) +void PeekEvent(Event *event) { -#ifdef TARGET_SDL +#if defined(TARGET_SDL) + SDL_PeepEvents(event, 1, SDL_PEEKEVENT, SDL_ALLEVENTS); +#else + XPeekEvent(display, event); +#endif +} + +Key GetEventKey(KeyEvent *event, boolean with_modifiers) +{ +#if defined(TARGET_SDL) + #if 0 printf("unicode == '%d', sym == '%d', mod == '0x%04x'\n", (int)event->keysym.unicode, @@ -378,11 +1193,15 @@ inline Key GetEventKey(KeyEvent *event, boolean with_modifiers) (int)SDL_GetModState()); #endif - if (with_modifiers && event->keysym.unicode != 0) + if (with_modifiers && + event->keysym.unicode > 0x0000 && + event->keysym.unicode < 0x2000) return event->keysym.unicode; else return event->keysym.sym; + #else + #if 0 printf("with modifiers == '0x%04x', without modifiers == '0x%04x'\n", (int)XLookupKeysym(event, event->state), @@ -396,7 +1215,65 @@ inline Key GetEventKey(KeyEvent *event, boolean with_modifiers) #endif } -inline boolean CheckCloseWindowEvent(ClientMessageEvent *event) +KeyMod HandleKeyModState(Key key, int key_status) +{ + static KeyMod current_modifiers = KMOD_None; + +#if !defined(TARGET_SDL) + if (key != KSYM_UNDEFINED) /* new key => check for modifier key change */ + { + KeyMod new_modifier = KMOD_None; + + switch(key) + { + case KSYM_Shift_L: + new_modifier = KMOD_Shift_L; + break; + case KSYM_Shift_R: + new_modifier = KMOD_Shift_R; + break; + case KSYM_Control_L: + new_modifier = KMOD_Control_L; + break; + case KSYM_Control_R: + new_modifier = KMOD_Control_R; + break; + case KSYM_Meta_L: + new_modifier = KMOD_Meta_L; + break; + case KSYM_Meta_R: + new_modifier = KMOD_Meta_R; + break; + case KSYM_Alt_L: + new_modifier = KMOD_Alt_L; + break; + case KSYM_Alt_R: + new_modifier = KMOD_Alt_R; + break; + default: + break; + } + + if (key_status == KEY_PRESSED) + current_modifiers |= new_modifier; + else + current_modifiers &= ~new_modifier; + } +#endif + + return current_modifiers; +} + +KeyMod GetKeyModState() +{ +#if defined(TARGET_SDL) + return (KeyMod)SDL_GetModState(); +#else + return HandleKeyModState(KSYM_UNDEFINED, 0); +#endif +} + +boolean CheckCloseWindowEvent(ClientMessageEvent *event) { if (event->type != EVENT_CLIENTMESSAGE) return FALSE; @@ -404,7 +1281,7 @@ inline boolean CheckCloseWindowEvent(ClientMessageEvent *event) #if defined(TARGET_SDL) return TRUE; /* the only possible message here is SDL_QUIT */ #elif defined(PLATFORM_UNIX) - if ((event->window == window) && + if ((event->window == window->drawable) && (event->data.l[0] == XInternAtom(display, "WM_DELETE_WINDOW", FALSE))) return TRUE; #endif @@ -413,9 +1290,44 @@ inline boolean CheckCloseWindowEvent(ClientMessageEvent *event) } -inline void dummy(void) +/* ========================================================================= */ +/* joystick functions */ +/* ========================================================================= */ + +void InitJoysticks() { -#ifdef TARGET_SDL -#else + int i; + +#if defined(NO_JOYSTICK) + return; /* joysticks generally deactivated by compile-time directive */ +#endif + + /* always start with reliable default values */ + joystick.status = JOYSTICK_NOT_AVAILABLE; + for (i = 0; i < MAX_PLAYERS; i++) + joystick.fd[i] = -1; /* joystick device closed */ + +#if defined(TARGET_SDL) + SDLInitJoysticks(); +#elif defined(PLATFORM_UNIX) + UnixInitJoysticks(); +#elif defined(PLATFORM_MSDOS) + MSDOSInitJoysticks(); +#endif + +#if 0 + for (i = 0; i < MAX_PLAYERS; i++) + printf("::: Joystick for player %d: %d\n", i, joystick.fd[i]); +#endif +} + +boolean ReadJoystick(int nr, int *x, int *y, boolean *b1, boolean *b2) +{ +#if defined(TARGET_SDL) + return SDLReadJoystick(nr, x, y, b1, b2); +#elif defined(PLATFORM_UNIX) + return UnixReadJoystick(nr, x, y, b1, b2); +#elif defined(PLATFORM_MSDOS) + return MSDOSReadJoystick(nr, x, y, b1, b2); #endif }