-/***********************************************************
-* Artsoft Retro-Game Library *
-*----------------------------------------------------------*
-* (c) 1994-2002 Artsoft Entertainment *
-* Holger Schemel *
-* Detmolder Strasse 189 *
-* 33604 Bielefeld *
-* Germany *
-* e-mail: info@artsoft.org *
-*----------------------------------------------------------*
-* sdl.c *
-***********************************************************/
+// ============================================================================
+// Artsoft Retro-Game Library
+// ----------------------------------------------------------------------------
+// (c) 1995-2014 by Artsoft Entertainment
+// Holger Schemel
+// info@artsoft.org
+// http://www.artsoft.org/
+// ----------------------------------------------------------------------------
+// sdl.c
+// ============================================================================
#include "system.h"
#include "sound.h"
#include "joystick.h"
#include "misc.h"
+#include "setup.h"
+#define ENABLE_UNUSED_CODE 0 /* currently unused functions */
-#if defined(TARGET_SDL)
/* ========================================================================= */
/* video functions */
/* ========================================================================= */
-/* functions from SGE library */
-inline void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
+/* SDL internal variables */
+#if defined(TARGET_SDL2)
+#define USE_TARGET_TEXTURE TRUE
+#define USE_TARGET_TEXTURE_ONLY FALSE
-#ifdef PLATFORM_WIN32
-#define FULLSCREEN_BUG
+static SDL_Window *sdl_window = NULL;
+static SDL_Renderer *sdl_renderer = NULL;
+#if USE_TARGET_TEXTURE
+static SDL_Texture *sdl_texture_stream = NULL;
+static SDL_Texture *sdl_texture_target = NULL;
+#else
+static SDL_Texture *sdl_texture = NULL;
#endif
+static boolean fullscreen_enabled = FALSE;
+#endif
+
+static boolean limit_screen_updates = FALSE;
-/* stuff needed to work around SDL/Windows fullscreen drawing bug */
-static int fullscreen_width;
-static int fullscreen_height;
-static int fullscreen_xoffset;
-static int fullscreen_yoffset;
-static int video_xoffset;
-static int video_yoffset;
-inline void SDLInitVideoDisplay(void)
+/* functions from SGE library */
+void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
+
+void SDLLimitScreenUpdates(boolean enable)
{
- putenv("SDL_VIDEO_CENTERED=1");
+ limit_screen_updates = enable;
+}
- /* initialize SDL video */
- if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
- Error(ERR_EXIT, "SDL_InitSubSystem() failed: %s", SDL_GetError());
+static void FinalizeScreen()
+{
+ // copy global animations to render target buffer, if defined (below border)
+ if (gfx.draw_global_anim_function != NULL)
+ gfx.draw_global_anim_function(DRAW_GLOBAL_ANIM_STAGE_1);
- /* set default SDL depth */
- video.default_depth = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
+ // copy global masked border to render target buffer, if defined
+ if (gfx.draw_global_border_function != NULL)
+ gfx.draw_global_border_function(DRAW_BORDER_TO_SCREEN);
+
+ // copy global animations to render target buffer, if defined (above border)
+ if (gfx.draw_global_anim_function != NULL)
+ gfx.draw_global_anim_function(DRAW_GLOBAL_ANIM_STAGE_2);
}
-inline void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
- boolean fullscreen)
+static void UpdateScreen(SDL_Rect *rect)
{
-#ifdef FULLSCREEN_BUG
- int i;
- static int screen_xy[][2] =
+ static unsigned int update_screen_delay = 0;
+ unsigned int update_screen_delay_value = 50; /* (milliseconds) */
+ SDL_Surface *screen = backbuffer->surface;
+
+ if (limit_screen_updates &&
+ !DelayReached(&update_screen_delay, update_screen_delay_value))
+ return;
+
+ LimitScreenUpdates(FALSE);
+
+#if 0
{
- { 640, 480 },
- { 800, 600 },
- { 1024, 768 },
- { -1, -1 }
- };
+ static int LastFrameCounter = 0;
+ boolean changed = (FrameCounter != LastFrameCounter);
+
+ printf("::: FrameCounter == %d [%s]\n", FrameCounter,
+ (changed ? "-" : "SAME FRAME UPDATED"));
+
+ LastFrameCounter = FrameCounter;
+
+ /*
+ if (FrameCounter % 2)
+ return;
+ */
+ }
#endif
- /* default: normal game window size */
- fullscreen_width = video.width;
- fullscreen_height = video.height;
- fullscreen_xoffset = 0;
- fullscreen_yoffset = 0;
+#if USE_FINAL_SCREEN_BITMAP
+ if (gfx.final_screen_bitmap != NULL) // may not be initialized yet
+ {
+ // !!! TEST !!!
+ // draw global animations using bitmaps instead of using textures
+ // to prevent texture scaling artefacts (this is potentially slower)
+
+ BlitBitmap(backbuffer, gfx.final_screen_bitmap, 0, 0,
+ gfx.win_xsize, gfx.win_ysize, 0, 0);
+
+ FinalizeScreen();
+
+ screen = gfx.final_screen_bitmap->surface;
-#ifdef FULLSCREEN_BUG
- for (i=0; screen_xy[i][0] != -1; i++)
+ // force full window redraw
+ rect = NULL;
+ }
+#endif
+
+#if USE_TARGET_TEXTURE
+#if USE_TARGET_TEXTURE_ONLY
+ SDL_Texture *sdl_texture = sdl_texture_target;
+#else
+ SDL_Texture *sdl_texture = sdl_texture_stream;
+#endif
+#endif
+
+#if defined(TARGET_SDL2)
+ if (rect)
{
- if (video.width <= screen_xy[i][0] && video.height <= screen_xy[i][1])
- {
- fullscreen_width = screen_xy[i][0];
- fullscreen_height = screen_xy[i][1];
- break;
- }
+ int bytes_x = screen->pitch / video.width;
+ int bytes_y = screen->pitch;
+
+ SDL_UpdateTexture(sdl_texture, rect,
+ screen->pixels + rect->x * bytes_x + rect->y * bytes_y,
+ screen->pitch);
+ }
+ else
+ {
+ SDL_UpdateTexture(sdl_texture, NULL, screen->pixels, screen->pitch);
}
- fullscreen_xoffset = (fullscreen_width - video.width) / 2;
- fullscreen_yoffset = (fullscreen_height - video.height) / 2;
+ // clear render target buffer
+ SDL_RenderClear(sdl_renderer);
+
+#if USE_TARGET_TEXTURE
+ SDL_SetRenderTarget(sdl_renderer, sdl_texture_target);
+
+ // copy backbuffer to render target buffer
+ if (sdl_texture != sdl_texture_target)
+ SDL_RenderCopy(sdl_renderer, sdl_texture, NULL, NULL);
+#else
+ // copy backbuffer to render target buffer
+ SDL_RenderCopy(sdl_renderer, sdl_texture, NULL, NULL);
+#endif
+
+#if !USE_FINAL_SCREEN_BITMAP
+ FinalizeScreen();
+#endif
+
+#if USE_TARGET_TEXTURE
+ SDL_SetRenderTarget(sdl_renderer, NULL);
+ SDL_RenderCopy(sdl_renderer, sdl_texture_target, NULL, NULL);
+#endif
+
+ // show render target buffer on screen
+ SDL_RenderPresent(sdl_renderer);
+
+#else // TARGET_SDL
+ if (rect)
+ SDL_UpdateRects(screen, 1, rect);
+ else
+ SDL_UpdateRect(screen, 0, 0, 0, 0);
+#endif
+}
+
+static void SDLSetWindowIcon(char *basename)
+{
+ /* (setting the window icon on Mac OS X would replace the high-quality
+ dock icon with the currently smaller (and uglier) icon from file) */
+
+#if !defined(PLATFORM_MACOSX)
+ char *filename = getCustomImageFilename(basename);
+ SDL_Surface *surface;
+
+ if (filename == NULL)
+ {
+ Error(ERR_WARN, "SDLSetWindowIcon(): cannot find file '%s'", basename);
+
+ return;
+ }
+
+ if ((surface = IMG_Load(filename)) == NULL)
+ {
+ Error(ERR_WARN, "IMG_Load() failed: %s", SDL_GetError());
+
+ return;
+ }
+
+ /* set transparent color */
+ SDL_SetColorKey(surface, SET_TRANSPARENT_PIXEL,
+ SDL_MapRGB(surface->format, 0x00, 0x00, 0x00));
+
+#if defined(TARGET_SDL2)
+ SDL_SetWindowIcon(sdl_window, surface);
+#else
+ SDL_WM_SetIcon(surface, NULL);
+#endif
+#endif
+}
+
+#if defined(TARGET_SDL2)
+
+static boolean equalSDLPixelFormat(SDL_PixelFormat *format1,
+ SDL_PixelFormat *format2)
+{
+ return (format1->format == format2->format &&
+ format1->BitsPerPixel == format2->BitsPerPixel &&
+ format1->BytesPerPixel == format2->BytesPerPixel &&
+ format1->Rmask == format2->Rmask &&
+ format1->Gmask == format2->Gmask &&
+ format1->Bmask == format2->Bmask &&
+ format1->Amask == format2->Amask);
+}
+
+boolean SDLSetNativeSurface(SDL_Surface **surface)
+{
+ SDL_Surface *new_surface;
+
+ if (surface == NULL ||
+ *surface == NULL ||
+ backbuffer == NULL ||
+ backbuffer->surface == NULL)
+ return FALSE;
+
+ // if pixel format already optimized for destination surface, do nothing
+ if (equalSDLPixelFormat((*surface)->format, backbuffer->surface->format))
+ return FALSE;
+
+ new_surface = SDL_ConvertSurface(*surface, backbuffer->surface->format, 0);
+
+ if (new_surface == NULL)
+ Error(ERR_EXIT, "SDL_ConvertSurface() failed: %s", SDL_GetError());
+
+ SDL_FreeSurface(*surface);
+
+ *surface = new_surface;
+
+ return TRUE;
+}
+
+SDL_Surface *SDLGetNativeSurface(SDL_Surface *surface)
+{
+ SDL_PixelFormat format;
+ SDL_Surface *new_surface;
+
+ if (surface == NULL)
+ return NULL;
+
+ if (backbuffer && backbuffer->surface)
+ {
+ format = *backbuffer->surface->format;
+ format.Amask = surface->format->Amask; // keep alpha channel
+ }
+ else
+ {
+ format = *surface->format;
+ }
+
+ new_surface = SDL_ConvertSurface(surface, &format, 0);
+
+ if (new_surface == NULL)
+ Error(ERR_EXIT, "SDL_ConvertSurface() failed: %s", SDL_GetError());
+
+ return new_surface;
+}
+
+#else
+
+boolean SDLSetNativeSurface(SDL_Surface **surface)
+{
+ SDL_Surface *new_surface;
+
+ if (surface == NULL ||
+ *surface == NULL ||
+ !video.initialized)
+ return FALSE;
+
+ new_surface = SDL_DisplayFormat(*surface);
+
+ if (new_surface == NULL)
+ Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+
+ SDL_FreeSurface(*surface);
+
+ *surface = new_surface;
+
+ return TRUE;
+}
+
+SDL_Surface *SDLGetNativeSurface(SDL_Surface *surface)
+{
+ SDL_Surface *new_surface;
+
+ if (video.initialized)
+ new_surface = SDL_DisplayFormat(surface);
+ else
+ new_surface = SDL_ConvertSurface(surface, surface->format, SURFACE_FLAGS);
+
+ if (new_surface == NULL)
+ Error(ERR_EXIT, "%s() failed: %s",
+ (video.initialized ? "SDL_DisplayFormat" : "SDL_ConvertSurface"),
+ SDL_GetError());
+
+ return new_surface;
+}
+
+#endif
+
+#if defined(TARGET_SDL2)
+static SDL_Texture *SDLCreateTextureFromSurface(SDL_Surface *surface)
+{
+ SDL_Texture *texture = SDL_CreateTextureFromSurface(sdl_renderer, surface);
+
+ if (texture == NULL)
+ Error(ERR_EXIT, "SDL_CreateTextureFromSurface() failed: %s",
+ SDL_GetError());
+
+ return texture;
+}
+#endif
+
+void SDLCreateBitmapTextures(Bitmap *bitmap)
+{
+#if defined(TARGET_SDL2)
+ if (bitmap == NULL)
+ return;
+
+ if (bitmap->texture)
+ SDL_DestroyTexture(bitmap->texture);
+ if (bitmap->texture_masked)
+ SDL_DestroyTexture(bitmap->texture_masked);
+
+ bitmap->texture = SDLCreateTextureFromSurface(bitmap->surface);
+ bitmap->texture_masked = SDLCreateTextureFromSurface(bitmap->surface_masked);
+#endif
+}
+
+void SDLFreeBitmapTextures(Bitmap *bitmap)
+{
+#if defined(TARGET_SDL2)
+ if (bitmap == NULL)
+ return;
+
+ if (bitmap->texture)
+ SDL_DestroyTexture(bitmap->texture);
+ if (bitmap->texture_masked)
+ SDL_DestroyTexture(bitmap->texture_masked);
+
+ bitmap->texture = NULL;
+ bitmap->texture_masked = NULL;
+#endif
+}
+
+void SDLInitVideoDisplay(void)
+{
+#if !defined(TARGET_SDL2)
+ if (!strEqual(setup.system.sdl_videodriver, ARG_DEFAULT))
+ SDL_putenv(getStringCat2("SDL_VIDEODRIVER=", setup.system.sdl_videodriver));
+
+ SDL_putenv("SDL_VIDEO_CENTERED=1");
+#endif
+
+ /* initialize SDL video */
+ if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
+ Error(ERR_EXIT, "SDL_InitSubSystem() failed: %s", SDL_GetError());
+
+ /* set default SDL depth */
+#if !defined(TARGET_SDL2)
+ video.default_depth = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
+#else
+ video.default_depth = 32; // (how to determine video depth in SDL2?)
+#endif
+}
+
+void SDLInitVideoBuffer(boolean fullscreen)
+{
+ video.window_scaling_percent = setup.window_scaling_percent;
+ video.window_scaling_quality = setup.window_scaling_quality;
+
+#if defined(TARGET_SDL2)
+ // SDL 2.0: support for (desktop) fullscreen mode available
+ video.fullscreen_available = TRUE;
+#else
+ // SDL 1.2: no support for fullscreen mode in R'n'D anymore
+ video.fullscreen_available = FALSE;
#endif
/* open SDL video output device (window or fullscreen mode) */
- if (!SDLSetVideoMode(backbuffer, fullscreen))
+ if (!SDLSetVideoMode(fullscreen))
Error(ERR_EXIT, "setting video mode failed");
+ /* !!! SDL2 can only set the window icon if the window already exists !!! */
+ /* set window icon */
+ SDLSetWindowIcon(program.icon_filename);
+
/* set window and icon title */
+#if defined(TARGET_SDL2)
+ SDL_SetWindowTitle(sdl_window, program.window_title);
+#else
SDL_WM_SetCaption(program.window_title, program.window_title);
+#endif
/* SDL cannot directly draw to the visible video framebuffer like X11,
but always uses a backbuffer, which is then blitted to the visible
'window', which indicates that the SDL backbuffer should be updated to
the visible video framebuffer when attempting to blit to it.
- For convenience, it seems to be a good idea to create this symbolic
- buffer 'window' at the same size as the SDL backbuffer. Although it
- should never be drawn to directly, it would do no harm nevertheless. */
+ For convenience, it seems to be a good idea to create this symbolic
+ buffer 'window' at the same size as the SDL backbuffer. Although it
+ should never be drawn to directly, it would do no harm nevertheless. */
+
+ /* create additional (symbolic) buffer for double-buffering */
+ ReCreateBitmap(&window, video.width, video.height, video.depth);
+}
+
+static boolean SDLCreateScreen(boolean fullscreen)
+{
+ SDL_Surface *new_surface = NULL;
+
+#if defined(TARGET_SDL2)
+ int surface_flags_window = SURFACE_FLAGS | SDL_WINDOW_RESIZABLE;
+ int surface_flags_fullscreen = SURFACE_FLAGS | SDL_WINDOW_FULLSCREEN_DESKTOP;
+#else
+ int surface_flags_window = SURFACE_FLAGS;
+ int surface_flags_fullscreen = SURFACE_FLAGS; // (no fullscreen in SDL 1.2)
+#endif
+
+ int width = video.width;
+ int height = video.height;
+ int surface_flags = (fullscreen ? surface_flags_fullscreen :
+ surface_flags_window);
+
+ // default window size is unscaled
+ video.window_width = video.width;
+ video.window_height = video.height;
+
+#if defined(TARGET_SDL2)
+
+ // store if initial screen mode is fullscreen mode when changing screen size
+ video.fullscreen_initial = fullscreen;
+
+ float window_scaling_factor = (float)setup.window_scaling_percent / 100;
+
+ video.window_width = window_scaling_factor * width;
+ video.window_height = window_scaling_factor * height;
+
+#if USE_TARGET_TEXTURE
+ if (sdl_texture_stream)
+ {
+ SDL_DestroyTexture(sdl_texture_stream);
+ sdl_texture_stream = NULL;
+ }
+
+ if (sdl_texture_target)
+ {
+ SDL_DestroyTexture(sdl_texture_target);
+ sdl_texture_target = NULL;
+ }
+#else
+ if (sdl_texture)
+ {
+ SDL_DestroyTexture(sdl_texture);
+ sdl_texture = NULL;
+ }
+#endif
+
+ if (!(fullscreen && fullscreen_enabled))
+ {
+ if (sdl_renderer)
+ {
+ SDL_DestroyRenderer(sdl_renderer);
+ sdl_renderer = NULL;
+ }
+
+ if (sdl_window)
+ {
+ SDL_DestroyWindow(sdl_window);
+ sdl_window = NULL;
+ }
+ }
+
+ if (sdl_window == NULL)
+ sdl_window = SDL_CreateWindow(program.window_title,
+ SDL_WINDOWPOS_CENTERED,
+ SDL_WINDOWPOS_CENTERED,
+ video.window_width,
+ video.window_height,
+ surface_flags);
+
+ if (sdl_window != NULL)
+ {
+#if 0
+ /* if SDL_CreateRenderer() is called from within a VirtualBox Windows VM
+ *without* enabling 2D/3D acceleration and/or guest additions installed,
+ it will crash if flags are *not* set to SDL_RENDERER_SOFTWARE (because
+ it will try to use accelerated graphics and apparently fails miserably) */
+ if (sdl_renderer == NULL)
+ sdl_renderer = SDL_CreateRenderer(sdl_window, -1, SDL_RENDERER_SOFTWARE);
+#else
+ if (sdl_renderer == NULL)
+ sdl_renderer = SDL_CreateRenderer(sdl_window, -1, 0);
+#endif
+
+ if (sdl_renderer != NULL)
+ {
+ SDL_RenderSetLogicalSize(sdl_renderer, width, height);
+ // SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
+ SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, setup.window_scaling_quality);
+
+#if USE_TARGET_TEXTURE
+ sdl_texture_stream = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_STREAMING,
+ width, height);
+
+ sdl_texture_target = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_TARGET,
+ width, height);
+#else
+ sdl_texture = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_STREAMING,
+ width, height);
+#endif
+
+#if USE_TARGET_TEXTURE
+ if (sdl_texture_stream != NULL &&
+ sdl_texture_target != NULL)
+#else
+ if (sdl_texture != NULL)
+#endif
+ {
+ // use SDL default values for RGB masks and no alpha channel
+ new_surface = SDL_CreateRGBSurface(0, width, height, 32, 0,0,0, 0);
+
+ if (new_surface == NULL)
+ Error(ERR_WARN, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+ }
+ else
+ {
+ Error(ERR_WARN, "SDL_CreateTexture() failed: %s", SDL_GetError());
+ }
+ }
+ else
+ {
+ Error(ERR_WARN, "SDL_CreateRenderer() failed: %s", SDL_GetError());
+ }
+ }
+ else
+ {
+ Error(ERR_WARN, "SDL_CreateWindow() failed: %s", SDL_GetError());
+ }
+
+#else // TARGET_SDL
+
+ if (gfx.final_screen_bitmap == NULL)
+ gfx.final_screen_bitmap = CreateBitmapStruct();
+
+ gfx.final_screen_bitmap->width = width;
+ gfx.final_screen_bitmap->height = height;
+
+ gfx.final_screen_bitmap->surface =
+ SDL_SetVideoMode(width, height, video.depth, surface_flags);
+
+ if (gfx.final_screen_bitmap->surface != NULL)
+ {
+ new_surface =
+ SDL_CreateRGBSurface(surface_flags, width, height, video.depth, 0,0,0, 0);
+
+ if (new_surface == NULL)
+ Error(ERR_WARN, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+#if 0
+ new_surface = gfx.final_screen_bitmap->surface;
+ gfx.final_screen_bitmap = NULL;
+#endif
+
+ }
+ else
+ {
+ Error(ERR_WARN, "SDL_SetVideoMode() failed: %s", SDL_GetError());
+ }
+#endif
+
+#if defined(TARGET_SDL2)
+ // store fullscreen state ("video.fullscreen_enabled" may not reflect this!)
+ if (new_surface != NULL)
+ fullscreen_enabled = fullscreen;
+#endif
+
+ if (backbuffer == NULL)
+ backbuffer = CreateBitmapStruct();
+
+ backbuffer->width = video.width;
+ backbuffer->height = video.height;
+
+ if (backbuffer->surface)
+ SDL_FreeSurface(backbuffer->surface);
+
+ backbuffer->surface = new_surface;
+
+ return (new_surface != NULL);
+}
+
+boolean SDLSetVideoMode(boolean fullscreen)
+{
+ boolean success = FALSE;
+
+ SetWindowTitle();
+
+ if (fullscreen && !video.fullscreen_enabled && video.fullscreen_available)
+ {
+ /* switch display to fullscreen mode, if available */
+ success = SDLCreateScreen(TRUE);
+
+ if (!success)
+ {
+ /* switching display to fullscreen mode failed -- do not try it again */
+ video.fullscreen_available = FALSE;
+ }
+ else
+ {
+ video.fullscreen_enabled = TRUE;
+ }
+ }
+
+ if ((!fullscreen && video.fullscreen_enabled) || !success)
+ {
+ /* switch display to window mode */
+ success = SDLCreateScreen(FALSE);
+
+ if (!success)
+ {
+ /* switching display to window mode failed -- should not happen */
+ }
+ else
+ {
+ video.fullscreen_enabled = FALSE;
+ video.window_scaling_percent = setup.window_scaling_percent;
+ video.window_scaling_quality = setup.window_scaling_quality;
+ }
+ }
+
+#if defined(TARGET_SDL2)
+ SDLRedrawWindow(); // map window
+#endif
+
+#ifdef DEBUG
+#if defined(PLATFORM_WIN32)
+ // experimental drag and drop code
+
+ SDL_EventState(SDL_SYSWMEVENT, SDL_ENABLE);
+
+ {
+ SDL_SysWMinfo wminfo;
+ HWND hwnd;
+ boolean wminfo_success = FALSE;
+
+ SDL_VERSION(&wminfo.version);
+#if defined(TARGET_SDL2)
+ if (sdl_window)
+ wminfo_success = SDL_GetWindowWMInfo(sdl_window, &wminfo);
+#else
+ wminfo_success = (SDL_GetWMInfo(&wminfo) == 1);
+#endif
+
+ if (wminfo_success)
+ {
+#if defined(TARGET_SDL2)
+ hwnd = wminfo.info.win.window;
+#else
+ hwnd = wminfo.window;
+#endif
+
+ DragAcceptFiles(hwnd, TRUE);
+ }
+ }
+#endif
+#endif
+
+ return success;
+}
+
+void SDLSetWindowTitle()
+{
+#if defined(TARGET_SDL2)
+ SDL_SetWindowTitle(sdl_window, program.window_title);
+#else
+ SDL_WM_SetCaption(program.window_title, program.window_title);
+#endif
+}
+
+#if defined(TARGET_SDL2)
+void SDLSetWindowScaling(int window_scaling_percent)
+{
+ if (sdl_window == NULL)
+ return;
+
+ float window_scaling_factor = (float)window_scaling_percent / 100;
+ int new_window_width = (int)(window_scaling_factor * video.width);
+ int new_window_height = (int)(window_scaling_factor * video.height);
+
+ SDL_SetWindowSize(sdl_window, new_window_width, new_window_height);
+
+ video.window_scaling_percent = window_scaling_percent;
+ video.window_width = new_window_width;
+ video.window_height = new_window_height;
+
+ SetWindowTitle();
+}
+
+void SDLSetWindowScalingQuality(char *window_scaling_quality)
+{
+#if USE_TARGET_TEXTURE
+ SDL_Texture *new_texture;
+
+ if (sdl_texture_stream == NULL ||
+ sdl_texture_target == NULL)
+ return;
+
+ SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, window_scaling_quality);
+
+ new_texture = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_STREAMING,
+ video.width, video.height);
+
+ if (new_texture != NULL)
+ {
+ SDL_DestroyTexture(sdl_texture_stream);
+
+ sdl_texture_stream = new_texture;
+ }
+
+ new_texture = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_TARGET,
+ video.width, video.height);
+
+ if (new_texture != NULL)
+ {
+ SDL_DestroyTexture(sdl_texture_target);
+
+ sdl_texture_target = new_texture;
+ }
+
+ SDLRedrawWindow();
+
+#else
+ if (sdl_texture == NULL)
+ return;
+
+ SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, window_scaling_quality);
+
+ SDL_Texture *new_texture = SDL_CreateTexture(sdl_renderer,
+ SDL_PIXELFORMAT_ARGB8888,
+ SDL_TEXTUREACCESS_STREAMING,
+ video.width, video.height);
+
+ if (new_texture != NULL)
+ {
+ SDL_DestroyTexture(sdl_texture);
+
+ sdl_texture = new_texture;
+
+ SDLRedrawWindow();
+ }
+#endif
+
+ video.window_scaling_quality = window_scaling_quality;
+}
+
+void SDLSetWindowFullscreen(boolean fullscreen)
+{
+ if (sdl_window == NULL)
+ return;
+
+ int flags = (fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+
+ if (SDL_SetWindowFullscreen(sdl_window, flags) == 0)
+ video.fullscreen_enabled = fullscreen_enabled = fullscreen;
+
+ // if screen size was changed in fullscreen mode, correct desktop window size
+ if (!fullscreen && video.fullscreen_initial)
+ {
+ SDLSetWindowScaling(setup.window_scaling_percent);
+ SDL_SetWindowPosition(sdl_window,
+ SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
+
+ video.fullscreen_initial = FALSE;
+ }
+}
+
+void SDLRedrawWindow()
+{
+ UpdateScreen(NULL);
+}
+#endif
+
+void SDLCreateBitmapContent(Bitmap *bitmap, int width, int height,
+ int depth)
+{
+ SDL_Surface *surface =
+ SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, depth, 0,0,0, 0);
+
+ if (surface == NULL)
+ Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+ SDLSetNativeSurface(&surface);
+
+ bitmap->surface = surface;
+}
+
+void SDLFreeBitmapPointers(Bitmap *bitmap)
+{
+ if (bitmap->surface)
+ SDL_FreeSurface(bitmap->surface);
+ if (bitmap->surface_masked)
+ SDL_FreeSurface(bitmap->surface_masked);
+
+ bitmap->surface = NULL;
+ bitmap->surface_masked = NULL;
+
+#if defined(TARGET_SDL2)
+ if (bitmap->texture)
+ SDL_DestroyTexture(bitmap->texture);
+ if (bitmap->texture_masked)
+ SDL_DestroyTexture(bitmap->texture_masked);
+
+ bitmap->texture = NULL;
+ bitmap->texture_masked = NULL;
+#endif
+}
+
+void SDLCopyArea(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)
+{
+ Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
+ SDL_Rect src_rect, dst_rect;
+
+ src_rect.x = src_x;
+ src_rect.y = src_y;
+ src_rect.w = width;
+ src_rect.h = height;
+
+ dst_rect.x = dst_x;
+ dst_rect.y = dst_y;
+ dst_rect.w = width;
+ dst_rect.h = height;
+
+ // if (src_bitmap != backbuffer || dst_bitmap != window)
+ if (!(src_bitmap == backbuffer && dst_bitmap == window))
+ SDL_BlitSurface((mask_mode == BLIT_MASKED ?
+ src_bitmap->surface_masked : src_bitmap->surface),
+ &src_rect, real_dst_bitmap->surface, &dst_rect);
+
+ if (dst_bitmap == window)
+ UpdateScreen(&dst_rect);
+}
+
+void SDLBlitTexture(Bitmap *bitmap,
+ int src_x, int src_y, int width, int height,
+ int dst_x, int dst_y, int mask_mode)
+{
+#if defined(TARGET_SDL2)
+ SDL_Texture *texture;
+ SDL_Rect src_rect;
+ SDL_Rect dst_rect;
+
+ texture =
+ (mask_mode == BLIT_MASKED ? bitmap->texture_masked : bitmap->texture);
+
+ if (texture == NULL)
+ return;
+
+ src_rect.x = src_x;
+ src_rect.y = src_y;
+ src_rect.w = width;
+ src_rect.h = height;
+
+ dst_rect.x = dst_x;
+ dst_rect.y = dst_y;
+ dst_rect.w = width;
+ dst_rect.h = height;
+
+ SDL_RenderCopy(sdl_renderer, texture, &src_rect, &dst_rect);
+#endif
+}
+
+void SDLFillRectangle(Bitmap *dst_bitmap, int x, int y, int width, int height,
+ Uint32 color)
+{
+ Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
+ SDL_Rect rect;
+
+ rect.x = x;
+ rect.y = y;
+ rect.w = width;
+ rect.h = height;
+
+ SDL_FillRect(real_dst_bitmap->surface, &rect, color);
+
+ if (dst_bitmap == window)
+ UpdateScreen(&rect);
+}
+
+void SDLFadeRectangle(Bitmap *bitmap_cross, int x, int y, int width, int height,
+ int fade_mode, int fade_delay, int post_delay,
+ void (*draw_border_function)(void))
+{
+ SDL_Surface *surface_source = gfx.fade_bitmap_source->surface;
+ SDL_Surface *surface_target = gfx.fade_bitmap_target->surface;
+ SDL_Surface *surface_black = gfx.fade_bitmap_black->surface;
+ SDL_Surface *surface_screen = backbuffer->surface;
+ SDL_Surface *surface_cross = (bitmap_cross ? bitmap_cross->surface : NULL);
+ SDL_Rect src_rect, dst_rect;
+ SDL_Rect dst_rect2;
+ int src_x = x, src_y = y;
+ int dst_x = x, dst_y = y;
+ unsigned int time_last, time_current;
+
+ // store function for drawing global masked border
+ void (*draw_global_border_function)(int) = gfx.draw_global_border_function;
+
+ // deactivate drawing of global border while fading, if needed
+ if (draw_border_function == NULL)
+ gfx.draw_global_border_function = NULL;
+
+ src_rect.x = src_x;
+ src_rect.y = src_y;
+ src_rect.w = width;
+ src_rect.h = height;
+
+ dst_rect.x = dst_x;
+ dst_rect.y = dst_y;
+ dst_rect.w = width; /* (ignored) */
+ dst_rect.h = height; /* (ignored) */
+
+ dst_rect2 = dst_rect;
+
+ /* copy source and target surfaces to temporary surfaces for fading */
+ if (fade_mode & FADE_TYPE_TRANSFORM)
+ {
+ SDL_BlitSurface(surface_cross, &src_rect, surface_source, &src_rect);
+ SDL_BlitSurface(surface_screen, &dst_rect, surface_target, &src_rect);
+
+ draw_global_border_function(DRAW_BORDER_TO_FADE_SOURCE);
+ draw_global_border_function(DRAW_BORDER_TO_FADE_TARGET);
+ }
+ else if (fade_mode & FADE_TYPE_FADE_IN)
+ {
+ SDL_BlitSurface(surface_black, &src_rect, surface_source, &src_rect);
+ SDL_BlitSurface(surface_screen, &dst_rect, surface_target, &src_rect);
- /* create additional (symbolic) buffer for double-buffering */
- *window = CreateBitmap(video.width, video.height, video.depth);
-}
+ draw_global_border_function(DRAW_BORDER_TO_FADE_TARGET);
+ }
+ else /* FADE_TYPE_FADE_OUT */
+ {
+ SDL_BlitSurface(surface_screen, &dst_rect, surface_source, &src_rect);
+ SDL_BlitSurface(surface_black, &src_rect, surface_target, &src_rect);
-inline boolean SDLSetVideoMode(DrawBuffer **backbuffer, boolean fullscreen)
-{
- boolean success = TRUE;
- int surface_flags_fullscreen = SURFACE_FLAGS | SDL_FULLSCREEN;
- int surface_flags_window = SURFACE_FLAGS;
- SDL_Surface *new_surface = NULL;
+ draw_global_border_function(DRAW_BORDER_TO_FADE_SOURCE);
+ }
- if (*backbuffer == NULL)
- *backbuffer = CreateBitmapStruct();
+ time_current = SDL_GetTicks();
- if (fullscreen && !video.fullscreen_enabled && video.fullscreen_available)
+ if (fade_mode == FADE_MODE_MELT)
{
- video_xoffset = fullscreen_xoffset;
- video_yoffset = fullscreen_yoffset;
+ boolean done = FALSE;
+ int melt_pixels = 2;
+ int melt_columns = width / melt_pixels;
+ int ypos[melt_columns];
+ int max_steps = height / 8 + 32;
+ int steps_done = 0;
+ float steps = 0;
+ int i;
+
+ SDL_BlitSurface(surface_source, &src_rect, surface_screen, &dst_rect);
+#if defined(TARGET_SDL2)
+ SDL_SetSurfaceBlendMode(surface_target, SDL_BLENDMODE_NONE);
+#else
+ SDL_SetAlpha(surface_target, 0, 0); /* disable alpha blending */
+#endif
- /* switch display to fullscreen mode, if available */
- if ((new_surface = SDL_SetVideoMode(fullscreen_width, fullscreen_height,
- video.depth, surface_flags_fullscreen))
- == NULL)
+ ypos[0] = -GetSimpleRandom(16);
+
+ for (i = 1 ; i < melt_columns; i++)
{
- /* switching display to fullscreen mode failed */
- Error(ERR_WARN, "SDL_SetVideoMode() failed: %s", SDL_GetError());
+ int r = GetSimpleRandom(3) - 1; /* randomly choose from { -1, 0, -1 } */
- /* do not try it again */
- video.fullscreen_available = FALSE;
- success = FALSE;
+ ypos[i] = ypos[i - 1] + r;
+
+ if (ypos[i] > 0)
+ ypos[i] = 0;
+ else
+ if (ypos[i] == -16)
+ ypos[i] = -15;
}
- else
+
+ while (!done)
{
- (*backbuffer)->surface = new_surface;
+ int steps_final;
- video.fullscreen_enabled = TRUE;
- success = TRUE;
+ time_last = time_current;
+ time_current = SDL_GetTicks();
+ steps += max_steps * ((float)(time_current - time_last) / fade_delay);
+ steps_final = MIN(MAX(0, steps), max_steps);
+
+ steps_done++;
+
+ done = (steps_done >= steps_final);
+
+ for (i = 0 ; i < melt_columns; i++)
+ {
+ if (ypos[i] < 0)
+ {
+ ypos[i]++;
+
+ done = FALSE;
+ }
+ else if (ypos[i] < height)
+ {
+ int y1 = 16;
+ int y2 = 8;
+ int y3 = 8;
+ int dy = (ypos[i] < y1) ? ypos[i] + 1 : y2 + GetSimpleRandom(y3);
+
+ if (ypos[i] + dy >= height)
+ dy = height - ypos[i];
+
+ /* copy part of (appearing) target surface to upper area */
+ src_rect.x = src_x + i * melt_pixels;
+ // src_rect.y = src_y + ypos[i];
+ src_rect.y = src_y;
+ src_rect.w = melt_pixels;
+ // src_rect.h = dy;
+ src_rect.h = ypos[i] + dy;
+
+ dst_rect.x = dst_x + i * melt_pixels;
+ // dst_rect.y = dst_y + ypos[i];
+ dst_rect.y = dst_y;
+
+ if (steps_done >= steps_final)
+ SDL_BlitSurface(surface_target, &src_rect,
+ surface_screen, &dst_rect);
+
+ ypos[i] += dy;
+
+ /* copy part of (disappearing) source surface to lower area */
+ src_rect.x = src_x + i * melt_pixels;
+ src_rect.y = src_y;
+ src_rect.w = melt_pixels;
+ src_rect.h = height - ypos[i];
+
+ dst_rect.x = dst_x + i * melt_pixels;
+ dst_rect.y = dst_y + ypos[i];
+
+ if (steps_done >= steps_final)
+ SDL_BlitSurface(surface_source, &src_rect,
+ surface_screen, &dst_rect);
+
+ done = FALSE;
+ }
+ else
+ {
+ src_rect.x = src_x + i * melt_pixels;
+ src_rect.y = src_y;
+ src_rect.w = melt_pixels;
+ src_rect.h = height;
+
+ dst_rect.x = dst_x + i * melt_pixels;
+ dst_rect.y = dst_y;
+
+ if (steps_done >= steps_final)
+ SDL_BlitSurface(surface_target, &src_rect,
+ surface_screen, &dst_rect);
+ }
+ }
+
+ if (steps_done >= steps_final)
+ {
+ if (draw_border_function != NULL)
+ draw_border_function();
+
+ UpdateScreen(&dst_rect2);
+ }
}
}
-
- if ((!fullscreen && video.fullscreen_enabled) || new_surface == NULL)
+ else if (fade_mode == FADE_MODE_CURTAIN)
{
- video_xoffset = 0;
- video_yoffset = 0;
+ float xx;
+ int xx_final;
+ int xx_size = width / 2;
- /* switch display to window mode */
- if ((new_surface = SDL_SetVideoMode(video.width, video.height,
- video.depth, surface_flags_window))
- == NULL)
- {
- /* switching display to window mode failed -- should not happen */
- Error(ERR_WARN, "SDL_SetVideoMode() failed: %s", SDL_GetError());
+ SDL_BlitSurface(surface_target, &src_rect, surface_screen, &dst_rect);
+#if defined(TARGET_SDL2)
+ SDL_SetSurfaceBlendMode(surface_source, SDL_BLENDMODE_NONE);
+#else
+ SDL_SetAlpha(surface_source, 0, 0); /* disable alpha blending */
+#endif
- success = FALSE;
- }
- else
+ for (xx = 0; xx < xx_size;)
{
- (*backbuffer)->surface = new_surface;
+ time_last = time_current;
+ time_current = SDL_GetTicks();
+ xx += xx_size * ((float)(time_current - time_last) / fade_delay);
+ xx_final = MIN(MAX(0, xx), xx_size);
- video.fullscreen_enabled = FALSE;
- success = TRUE;
- }
- }
+ src_rect.x = src_x;
+ src_rect.y = src_y;
+ src_rect.w = width;
+ src_rect.h = height;
- return success;
-}
+ dst_rect.x = dst_x;
+ dst_rect.y = dst_y;
-inline void SDLCreateBitmapContent(Bitmap *new_bitmap,
- int width, int height, int depth)
-{
- SDL_Surface *surface_tmp, *surface_native;
+ /* draw new (target) image to screen buffer */
+ SDL_BlitSurface(surface_target, &src_rect, surface_screen, &dst_rect);
- if ((surface_tmp = SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, depth,
- 0, 0, 0, 0))
- == NULL)
- Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+ if (xx_final < xx_size)
+ {
+ src_rect.w = xx_size - xx_final;
+ src_rect.h = height;
- if ((surface_native = SDL_DisplayFormat(surface_tmp)) == NULL)
- Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+ /* draw old (source) image to screen buffer (left side) */
- SDL_FreeSurface(surface_tmp);
+ src_rect.x = src_x + xx_final;
+ dst_rect.x = dst_x;
- new_bitmap->surface = surface_native;
-}
+ SDL_BlitSurface(surface_source, &src_rect, surface_screen, &dst_rect);
-inline void SDLFreeBitmapPointers(Bitmap *bitmap)
-{
- if (bitmap->surface)
- SDL_FreeSurface(bitmap->surface);
- if (bitmap->surface_masked)
- SDL_FreeSurface(bitmap->surface_masked);
- bitmap->surface = NULL;
- bitmap->surface_masked = NULL;
-}
+ /* draw old (source) image to screen buffer (right side) */
-inline void SDLCopyArea(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)
-{
- Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
- SDL_Rect src_rect, dst_rect;
+ src_rect.x = src_x + xx_size;
+ dst_rect.x = dst_x + xx_size + xx_final;
-#ifdef FULLSCREEN_BUG
- if (src_bitmap == backbuffer)
- {
- src_x += video_xoffset;
- src_y += video_yoffset;
- }
-#endif
+ SDL_BlitSurface(surface_source, &src_rect, surface_screen, &dst_rect);
+ }
- src_rect.x = src_x;
- src_rect.y = src_y;
- src_rect.w = width;
- src_rect.h = height;
+ if (draw_border_function != NULL)
+ draw_border_function();
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
- {
- dst_x += video_xoffset;
- dst_y += video_yoffset;
+ /* only update the region of the screen that is affected from fading */
+ UpdateScreen(&dst_rect2);
+ }
}
+ else /* fading in, fading out or cross-fading */
+ {
+ float alpha;
+ int alpha_final;
+
+ for (alpha = 0.0; alpha < 255.0;)
+ {
+ time_last = time_current;
+ time_current = SDL_GetTicks();
+ alpha += 255 * ((float)(time_current - time_last) / fade_delay);
+ alpha_final = MIN(MAX(0, alpha), 255);
+
+ /* draw existing (source) image to screen buffer */
+ SDL_BlitSurface(surface_source, &src_rect, surface_screen, &dst_rect);
+
+ /* draw new (target) image to screen buffer using alpha blending */
+#if defined(TARGET_SDL2)
+ SDL_SetSurfaceAlphaMod(surface_target, alpha_final);
+ SDL_SetSurfaceBlendMode(surface_target, SDL_BLENDMODE_BLEND);
+#else
+ SDL_SetAlpha(surface_target, SDL_SRCALPHA, alpha_final);
#endif
+ SDL_BlitSurface(surface_target, &src_rect, surface_screen, &dst_rect);
- dst_rect.x = dst_x;
- dst_rect.y = dst_y;
- dst_rect.w = width;
- dst_rect.h = height;
+ if (draw_border_function != NULL)
+ draw_border_function();
- if (src_bitmap != backbuffer || dst_bitmap != window)
- SDL_BlitSurface((mask_mode == BLIT_MASKED ?
- src_bitmap->surface_masked : src_bitmap->surface),
- &src_rect, real_dst_bitmap->surface, &dst_rect);
+ /* only update the region of the screen that is affected from fading */
+ UpdateScreen(&dst_rect);
+ }
+ }
- if (dst_bitmap == window)
- SDL_UpdateRect(backbuffer->surface, dst_x, dst_y, width, height);
-}
+ if (post_delay > 0)
+ {
+ unsigned int time_post_delay;
-inline void SDLFillRectangle(Bitmap *dst_bitmap, int x, int y,
- int width, int height, Uint32 color)
-{
- Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
- SDL_Rect rect;
-#if 0
- unsigned int color_r = (color >> 16) & 0xff;
- unsigned int color_g = (color >> 8) & 0xff;
- unsigned int color_b = (color >> 0) & 0xff;
-#endif
+ time_current = SDL_GetTicks();
+ time_post_delay = time_current + post_delay;
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
- {
- x += video_xoffset;
- y += video_yoffset;
- }
-#endif
+ while (time_current < time_post_delay)
+ {
+ // do not wait longer than 10 ms at a time to be able to ...
+ Delay(MIN(10, time_post_delay - time_current));
- rect.x = x;
- rect.y = y;
- rect.w = width;
- rect.h = height;
+ // ... continue drawing global animations during post delay
+ UpdateScreen(NULL);
-#if 1
- SDL_FillRect(real_dst_bitmap->surface, &rect, color);
-#else
- SDL_FillRect(real_dst_bitmap->surface, &rect,
- SDL_MapRGB(real_dst_bitmap->surface->format,
- color_r, color_g, color_b));
-#endif
+ time_current = SDL_GetTicks();
+ }
+ }
- if (dst_bitmap == window)
- SDL_UpdateRect(backbuffer->surface, x, y, width, height);
+ // restore function for drawing global masked border
+ gfx.draw_global_border_function = draw_global_border_function;
}
-inline void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y,
- int to_x, int to_y, Uint32 color)
+void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y,
+ int to_x, int to_y, Uint32 color)
{
SDL_Surface *surface = dst_bitmap->surface;
SDL_Rect rect;
-#if 0
- unsigned int color_r = (color >> 16) & 0xff;
- unsigned int color_g = (color >> 8) & 0xff;
- unsigned int color_b = (color >> 0) & 0xff;
-#endif
if (from_x > to_x)
swap_numbers(&from_x, &to_x);
rect.w = (to_x - from_x + 1);
rect.h = (to_y - from_y + 1);
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
- {
- rect.x += video_xoffset;
- rect.y += video_yoffset;
- }
-#endif
-
-#if 1
SDL_FillRect(surface, &rect, color);
-#else
- SDL_FillRect(surface, &rect,
- SDL_MapRGB(surface->format, color_r, color_g, color_b));
-#endif
}
-inline void SDLDrawLine(Bitmap *dst_bitmap, int from_x, int from_y,
- int to_x, int to_y, Uint32 color)
+void SDLDrawLine(Bitmap *dst_bitmap, int from_x, int from_y,
+ int to_x, int to_y, Uint32 color)
{
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
- {
- from_x += video_xoffset;
- from_y += video_yoffset;
- to_x += video_xoffset;
- to_y += video_yoffset;
- }
-#endif
-
sge_Line(dst_bitmap->surface, from_x, from_y, to_x, to_y, color);
}
-#if 0
-inline void SDLDrawLines(SDL_Surface *surface, struct XY *points,
- int num_points, Uint32 color)
+#if ENABLE_UNUSED_CODE
+void SDLDrawLines(SDL_Surface *surface, struct XY *points,
+ int num_points, Uint32 color)
{
int i, x, y;
int line_width = 4;
- for (i=0; i<num_points - 1; i++)
+ for (i = 0; i < num_points - 1; i++)
{
- for (x=0; x<line_width; x++)
+ for (x = 0; x < line_width; x++)
{
- for (y=0; y<line_width; y++)
+ for (y = 0; y < line_width; y++)
{
int dx = x - line_width / 2;
int dy = y - line_width / 2;
}
#endif
-inline Pixel SDLGetPixel(Bitmap *dst_bitmap, int x, int y)
+Pixel SDLGetPixel(Bitmap *src_bitmap, int x, int y)
{
- SDL_Surface *surface = dst_bitmap->surface;
-
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
- {
- x += video_xoffset;
- y += video_yoffset;
- }
-#endif
+ SDL_Surface *surface = src_bitmap->surface;
switch (surface->format->BytesPerPixel)
{
/* ========================================================================= */
/* The following functions were taken from the SGE library */
-/* (SDL Graphics Extension Library) by Anders Lindström */
+/* (SDL Graphics Extension Library) by Anders Lindström */
/* http://www.etek.chalmers.se/~e8cal1/sge/index.html */
/* ========================================================================= */
sge_Line(Surface, x1, y1, x2, y2, SDL_MapRGB(Surface->format, R, G, B));
}
+void SDLPutPixel(Bitmap *dst_bitmap, int x, int y, Pixel pixel)
+{
+ sge_PutPixel(dst_bitmap->surface, x, y, pixel);
+}
+
/*
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
*/
-inline void SDLInvertArea(Bitmap *bitmap, int src_x, int src_y,
- int width, int height, Uint32 color)
+void SDLInvertArea(Bitmap *bitmap, int src_x, int src_y,
+ int width, int height, Uint32 color)
{
- SDL_Surface *surface = bitmap->surface;
int x, y;
- for (y=src_y; y < src_y + height; y++)
+ for (y = src_y; y < src_y + height; y++)
{
- for (x=src_x; x < src_x + width; x++)
+ for (x = src_x; x < src_x + width; x++)
{
Uint32 pixel = SDLGetPixel(bitmap, x, y);
- sge_PutPixel(surface, x, y, pixel == BLACK_PIXEL ? color : BLACK_PIXEL);
+ SDLPutPixel(bitmap, x, y, pixel == BLACK_PIXEL ? color : BLACK_PIXEL);
+ }
+ }
+}
+
+void SDLCopyInverseMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
+ int src_x, int src_y, int width, int height,
+ int dst_x, int dst_y)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++)
+ {
+ for (x = 0; x < width; x++)
+ {
+ Uint32 pixel = SDLGetPixel(src_bitmap, src_x + x, src_y + y);
+
+ if (pixel != BLACK_PIXEL)
+ SDLPutPixel(dst_bitmap, dst_x + x, dst_y + y, BLACK_PIXEL);
}
}
}
Uint8 a;
} tColorRGBA;
-int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst)
+int zoomSurfaceRGBA_scaleDownBy2(SDL_Surface *src, SDL_Surface *dst)
{
- int x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy;
+ int x, y;
tColorRGBA *sp, *csp, *dp;
- int sgap, dgap;
+ int dgap;
+
+ /* pointer setup */
+ sp = csp = (tColorRGBA *) src->pixels;
+ dp = (tColorRGBA *) dst->pixels;
+ dgap = dst->pitch - dst->w * 4;
+
+ for (y = 0; y < dst->h; y++)
+ {
+ sp = csp;
+
+ for (x = 0; x < dst->w; x++)
+ {
+ tColorRGBA *sp0 = sp;
+ tColorRGBA *sp1 = (tColorRGBA *) ((Uint8 *) sp + src->pitch);
+ tColorRGBA *sp00 = &sp0[0];
+ tColorRGBA *sp01 = &sp0[1];
+ tColorRGBA *sp10 = &sp1[0];
+ tColorRGBA *sp11 = &sp1[1];
+ tColorRGBA new;
+
+ /* create new color pixel from all four source color pixels */
+ new.r = (sp00->r + sp01->r + sp10->r + sp11->r) / 4;
+ new.g = (sp00->g + sp01->g + sp10->g + sp11->g) / 4;
+ new.b = (sp00->b + sp01->b + sp10->b + sp11->b) / 4;
+ new.a = (sp00->a + sp01->a + sp10->a + sp11->a) / 4;
+
+ /* draw */
+ *dp = new;
+
+ /* advance source pointers */
+ sp += 2;
+
+ /* advance destination pointer */
+ dp++;
+ }
+
+ /* advance source pointer */
+ csp = (tColorRGBA *) ((Uint8 *) csp + 2 * src->pitch);
+
+ /* advance destination pointers */
+ dp = (tColorRGBA *) ((Uint8 *) dp + dgap);
+ }
+
+ return 0;
+}
+
+int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst)
+{
+ int x, y, *sax, *say, *csax, *csay;
+ float sx, sy;
+ tColorRGBA *sp, *csp, *csp0, *dp;
+ int dgap;
+
+ /* use specialized zoom function when scaling down to exactly half size */
+ if (src->w == 2 * dst->w &&
+ src->h == 2 * dst->h)
+ return zoomSurfaceRGBA_scaleDownBy2(src, dst);
/* variable setup */
- sx = (int) (65536.0 * (float) src->w / (float) dst->w);
- sy = (int) (65536.0 * (float) src->h / (float) dst->h);
+ sx = (float) src->w / (float) dst->w;
+ sy = (float) src->h / (float) dst->h;
/* allocate memory for row increments */
- sax = (int *)checked_malloc((dst->w + 1) * sizeof(Uint32));
- say = (int *)checked_malloc((dst->h + 1) * sizeof(Uint32));
+ csax = sax = (int *)checked_malloc((dst->w + 1) * sizeof(Uint32));
+ csay = say = (int *)checked_malloc((dst->h + 1) * sizeof(Uint32));
/* precalculate row increments */
- csx = 0;
- csax = sax;
for (x = 0; x <= dst->w; x++)
- {
- *csax = csx;
- csax++;
- csx &= 0xffff;
- csx += sx;
- }
+ *csax++ = (int)(sx * x);
- csy = 0;
- csay = say;
for (y = 0; y <= dst->h; y++)
- {
- *csay = csy;
- csay++;
- csy &= 0xffff;
- csy += sy;
- }
+ *csay++ = (int)(sy * y);
/* pointer setup */
- sp = csp = (tColorRGBA *) src->pixels;
+ sp = csp = csp0 = (tColorRGBA *) src->pixels;
dp = (tColorRGBA *) dst->pixels;
- sgap = src->pitch - src->w * 4;
dgap = dst->pitch - dst->w * 4;
csay = say;
/* advance source pointers */
csax++;
- sp += (*csax >> 16);
+ sp = csp + *csax;
/* advance destination pointer */
dp++;
/* advance source pointer */
csay++;
- csp = (tColorRGBA *) ((Uint8 *) csp + (*csay >> 16) * src->pitch);
+ csp = (tColorRGBA *) ((Uint8 *) csp0 + *csay * src->pitch);
/* advance destination pointers */
dp = (tColorRGBA *) ((Uint8 *) dp + dgap);
-----------------------------------------------------------------------------
zoomSurface()
- Zoomes a 32bit or 8bit 'src' surface to newly created 'dst' surface.
+ Zooms a 32bit or 8bit 'src' surface to newly created 'dst' surface.
'zoomx' and 'zoomy' are scaling factors for width and height.
- If 'smooth' is 1 then the destination 32bit surface is anti-aliased.
If the surface is not 8bit or 32bit RGBA/ABGR it will be converted
into a 32bit RGBA format on the fly.
-----------------------------------------------------------------------------
else
{
/* new source surface is 32 bit with a defined RGB ordering */
- zoom_src = SDL_CreateRGBSurface(SDL_SWSURFACE, src->w, src->h, 32,
+ zoom_src = SDL_CreateRGBSurface(SURFACE_FLAGS, src->w, src->h, 32,
0x000000ff, 0x0000ff00, 0x00ff0000, 0);
SDL_BlitSurface(src, NULL, zoom_src, NULL);
is_32bit = TRUE;
if (is_32bit)
{
/* target surface is 32 bit with source RGBA/ABGR ordering */
- zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 32,
+ zoom_dst = SDL_CreateRGBSurface(SURFACE_FLAGS, dst_width, dst_height, 32,
zoom_src->format->Rmask,
zoom_src->format->Gmask,
zoom_src->format->Bmask, 0);
else
{
/* target surface is 8 bit */
- zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 8,
+ zoom_dst = SDL_CreateRGBSurface(SURFACE_FLAGS, dst_width, dst_height, 8,
0, 0, 0, 0);
}
else
{
/* copy palette */
- for (i=0; i < zoom_src->format->palette->ncolors; i++)
+ for (i = 0; i < zoom_src->format->palette->ncolors; i++)
zoom_dst->format->palette->colors[i] =
zoom_src->format->palette->colors[i];
zoom_dst->format->palette->ncolors = zoom_src->format->palette->ncolors;
return zoom_dst;
}
-void SDLZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap)
+Bitmap *SDLZoomBitmap(Bitmap *src_bitmap, int dst_width, int dst_height)
{
- SDL_Surface *sdl_surface_tmp;
- int dst_width = dst_bitmap->width;
- int dst_height = dst_bitmap->height;
+ Bitmap *dst_bitmap = CreateBitmapStruct();
+ SDL_Surface **dst_surface = &dst_bitmap->surface;
+
+ dst_width = MAX(1, dst_width); /* prevent zero bitmap width */
+ dst_height = MAX(1, dst_height); /* prevent zero bitmap height */
- /* throw away old destination surface */
- SDL_FreeSurface(dst_bitmap->surface);
+ dst_bitmap->width = dst_width;
+ dst_bitmap->height = dst_height;
/* create zoomed temporary surface from source surface */
- sdl_surface_tmp = zoomSurface(src_bitmap->surface, dst_width, dst_height);
+ *dst_surface = zoomSurface(src_bitmap->surface, dst_width, dst_height);
/* create native format destination surface from zoomed temporary surface */
- dst_bitmap->surface = SDL_DisplayFormat(sdl_surface_tmp);
+ SDLSetNativeSurface(dst_surface);
- /* free temporary surface */
- SDL_FreeSurface(sdl_surface_tmp);
+ return dst_bitmap;
}
Bitmap *new_bitmap = CreateBitmapStruct();
SDL_Surface *sdl_image_tmp;
+ print_timestamp_init("SDLLoadImage");
+
+ print_timestamp_time(getBaseNamePtr(filename));
+
/* load image to temporary surface */
if ((sdl_image_tmp = IMG_Load(filename)) == NULL)
{
SetError("IMG_Load(): %s", SDL_GetError());
+
return NULL;
}
+ print_timestamp_time("IMG_Load");
+
+ UPDATE_BUSY_STATE();
+
/* create native non-transparent surface for current image */
- if ((new_bitmap->surface = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
+ if ((new_bitmap->surface = SDLGetNativeSurface(sdl_image_tmp)) == NULL)
{
SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+
return NULL;
}
+ print_timestamp_time("SDL_DisplayFormat (opaque)");
+
+ UPDATE_BUSY_STATE();
+
/* create native transparent surface for current image */
- SDL_SetColorKey(sdl_image_tmp, SDL_SRCCOLORKEY,
- SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00));
- if ((new_bitmap->surface_masked = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
+ if (sdl_image_tmp->format->Amask == 0)
+ SDL_SetColorKey(sdl_image_tmp, SET_TRANSPARENT_PIXEL,
+ SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00));
+
+ if ((new_bitmap->surface_masked = SDLGetNativeSurface(sdl_image_tmp)) == NULL)
{
SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+
return NULL;
}
+ print_timestamp_time("SDL_DisplayFormat (masked)");
+
+ UPDATE_BUSY_STATE();
+
/* free temporary surface */
SDL_FreeSurface(sdl_image_tmp);
new_bitmap->width = new_bitmap->surface->w;
new_bitmap->height = new_bitmap->surface->h;
+ print_timestamp_done("SDLLoadImage");
+
return new_bitmap;
}
/* custom cursor fuctions */
/* ------------------------------------------------------------------------- */
-static SDL_Cursor *create_cursor(const char **image)
+static SDL_Cursor *create_cursor(struct MouseCursorInfo *cursor_info)
{
- int i, row, col;
- Uint8 data[4*32];
- Uint8 mask[4*32];
- int hot_x, hot_y;
-
- i = -1;
- for (row=0; row<32; ++row)
- {
- for (col=0; col<32; ++col)
- {
- if (col % 8)
- {
- data[i] <<= 1;
- mask[i] <<= 1;
- }
- else
- {
- i++;
- data[i] = mask[i] = 0;
- }
-
- switch (image[4+row][col])
- {
- case 'X':
- data[i] |= 0x01;
- mask[i] |= 0x01;
- break;
- case '.':
- mask[i] |= 0x01;
- break;
- case ' ':
- break;
- }
- }
- }
-
- sscanf(image[4+row], "%d,%d", &hot_x, &hot_y);
-
- return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y);
+ return SDL_CreateCursor(cursor_info->data, cursor_info->mask,
+ cursor_info->width, cursor_info->height,
+ cursor_info->hot_x, cursor_info->hot_y);
}
-void SDLSetMouseCursor(const char **cursor_image)
+void SDLSetMouseCursor(struct MouseCursorInfo *cursor_info)
{
- static const char **last_cursor_image = NULL;
+ static struct MouseCursorInfo *last_cursor_info = NULL;
+ static struct MouseCursorInfo *last_cursor_info2 = NULL;
static SDL_Cursor *cursor_default = NULL;
static SDL_Cursor *cursor_current = NULL;
+ /* if invoked for the first time, store the SDL default cursor */
if (cursor_default == NULL)
cursor_default = SDL_GetCursor();
- if (cursor_image != NULL && cursor_image != last_cursor_image)
+ /* only create new cursor if cursor info (custom only) has changed */
+ if (cursor_info != NULL && cursor_info != last_cursor_info)
{
- cursor_current = create_cursor(cursor_image);
- last_cursor_image = cursor_image;
+ cursor_current = create_cursor(cursor_info);
+ last_cursor_info = cursor_info;
}
- SDL_SetCursor(cursor_image ? cursor_current : cursor_default);
+ /* only set new cursor if cursor info (custom or NULL) has changed */
+ if (cursor_info != last_cursor_info2)
+ SDL_SetCursor(cursor_info ? cursor_current : cursor_default);
+
+ last_cursor_info2 = cursor_info;
}
/* audio functions */
/* ========================================================================= */
-inline void SDLOpenAudio(void)
+void SDLOpenAudio(void)
{
- if (strcmp(setup.system.sdl_audiodriver, ARG_DEFAULT) != 0)
- putenv(getStringCat2("SDL_AUDIODRIVER=", setup.system.sdl_audiodriver));
+#if !defined(TARGET_SDL2)
+ if (!strEqual(setup.system.sdl_audiodriver, ARG_DEFAULT))
+ SDL_putenv(getStringCat2("SDL_AUDIODRIVER=", setup.system.sdl_audiodriver));
+#endif
if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
{
Mixer_InitChannels();
}
-inline void SDLCloseAudio(void)
+void SDLCloseAudio(void)
{
Mix_HaltMusic();
Mix_HaltChannel(-1);
/* event functions */
/* ========================================================================= */
-inline void SDLNextEvent(Event *event)
+void SDLNextEvent(Event *event)
{
SDL_WaitEvent(event);
+}
-#ifdef FULLSCREEN_BUG
- if (event->type == EVENT_BUTTONPRESS ||
- event->type == EVENT_BUTTONRELEASE)
- {
- if (((ButtonEvent *)event)->x > video_xoffset)
- ((ButtonEvent *)event)->x -= video_xoffset;
- else
- ((ButtonEvent *)event)->x = 0;
- if (((ButtonEvent *)event)->y > video_yoffset)
- ((ButtonEvent *)event)->y -= video_yoffset;
- else
- ((ButtonEvent *)event)->y = 0;
- }
- else if (event->type == EVENT_MOTIONNOTIFY)
+void SDLHandleWindowManagerEvent(Event *event)
+{
+#ifdef DEBUG
+#if defined(PLATFORM_WIN32)
+ // experimental drag and drop code
+
+ SDL_SysWMEvent *syswmevent = (SDL_SysWMEvent *)event;
+ SDL_SysWMmsg *syswmmsg = (SDL_SysWMmsg *)(syswmevent->msg);
+
+#if defined(TARGET_SDL2)
+ if (syswmmsg->msg.win.msg == WM_DROPFILES)
+#else
+ if (syswmmsg->msg == WM_DROPFILES)
+#endif
{
- if (((ButtonEvent *)event)->x > video_xoffset)
- ((ButtonEvent *)event)->x -= video_xoffset;
- else
- ((ButtonEvent *)event)->x = 0;
- if (((ButtonEvent *)event)->y > video_yoffset)
- ((ButtonEvent *)event)->y -= video_yoffset;
- else
- ((ButtonEvent *)event)->y = 0;
+#if defined(TARGET_SDL2)
+ HDROP hdrop = (HDROP)syswmmsg->msg.win.wParam;
+#else
+ HDROP hdrop = (HDROP)syswmmsg->wParam;
+#endif
+ int i, num_files;
+
+ printf("::: SDL_SYSWMEVENT:\n");
+
+ num_files = DragQueryFile(hdrop, 0xffffffff, NULL, 0);
+
+ for (i = 0; i < num_files; i++)
+ {
+ int buffer_len = DragQueryFile(hdrop, i, NULL, 0);
+ char buffer[buffer_len + 1];
+
+ DragQueryFile(hdrop, i, buffer, buffer_len + 1);
+
+ printf("::: - '%s'\n", buffer);
+ }
+
+#if defined(TARGET_SDL2)
+ DragFinish((HDROP)syswmmsg->msg.win.wParam);
+#else
+ DragFinish((HDROP)syswmmsg->wParam);
+#endif
}
#endif
+#endif
}
return;
SDL_JoystickClose(sdl_joystick[nr]);
+
+ sdl_joystick[nr] = NULL;
}
static boolean SDLCheckJoystickOpened(int nr)
if (nr < 0 || nr > MAX_PLAYERS)
return FALSE;
+#if defined(TARGET_SDL2)
+ return (sdl_joystick[nr] != NULL ? TRUE : FALSE);
+#else
return (SDL_JoystickOpened(nr) ? TRUE : FALSE);
+#endif
}
void HandleJoystickEvent(Event *event)
void SDLInitJoysticks()
{
static boolean sdl_joystick_subsystem_initialized = FALSE;
+ boolean print_warning = !sdl_joystick_subsystem_initialized;
int i;
if (!sdl_joystick_subsystem_initialized)
{
sdl_joystick_subsystem_initialized = TRUE;
- if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
+ if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0)
{
Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
return;
}
}
- for (i=0; i<MAX_PLAYERS; i++)
+ for (i = 0; i < MAX_PLAYERS; i++)
{
+ /* get configured joystick for this player */
char *device_name = setup.input[i].joy.device_name;
int joystick_nr = getJoystickNrFromDeviceName(device_name);
if (joystick_nr >= SDL_NumJoysticks())
+ {
+ if (setup.input[i].use_joystick && print_warning)
+ Error(ERR_WARN, "cannot find joystick %d", joystick_nr);
+
joystick_nr = -1;
+ }
/* misuse joystick file descriptor variable to store joystick number */
joystick.fd[i] = joystick_nr;
+ if (joystick_nr == -1)
+ continue;
+
/* this allows subsequent calls to 'InitJoysticks' for re-initialization */
if (SDLCheckJoystickOpened(joystick_nr))
SDLCloseJoystick(joystick_nr);
if (!SDLOpenJoystick(joystick_nr))
{
- Error(ERR_WARN, "cannot open joystick %d", joystick_nr);
+ if (print_warning)
+ Error(ERR_WARN, "cannot open joystick %d", joystick_nr);
+
continue;
}
return TRUE;
}
-
-#endif /* TARGET_SDL */