/***********************************************************
* Artsoft Retro-Game Library *
*----------------------------------------------------------*
-* (c) 1994-2002 Artsoft Entertainment *
+* (c) 1994-2006 Artsoft Entertainment *
* Holger Schemel *
* Detmolder Strasse 189 *
* 33604 Bielefeld *
#include "sound.h"
#include "joystick.h"
#include "misc.h"
+#include "setup.h"
#if defined(TARGET_SDL)
/* ========================================================================= */
/* functions from SGE library */
-inline void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
-
-#ifdef PLATFORM_WIN32
-#define FULLSCREEN_BUG
-#endif
+void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
/* stuff needed to work around SDL/Windows fullscreen drawing bug */
static int fullscreen_width;
static int video_xoffset;
static int video_yoffset;
-inline void SDLInitVideoDisplay(void)
+static void setFullscreenParameters(char *fullscreen_mode_string)
{
- putenv("SDL_VIDEO_CENTERED=1");
+ struct ScreenModeInfo *fullscreen_mode;
+ int i;
+
+ fullscreen_mode = get_screen_mode_from_string(fullscreen_mode_string);
+
+ if (fullscreen_mode == NULL)
+ return;
+
+ for (i = 0; video.fullscreen_modes[i].width != -1; i++)
+ {
+ if (fullscreen_mode->width == video.fullscreen_modes[i].width &&
+ fullscreen_mode->height == video.fullscreen_modes[i].height)
+ {
+ fullscreen_width = fullscreen_mode->width;
+ fullscreen_height = fullscreen_mode->height;
+
+ fullscreen_xoffset = (fullscreen_width - video.width) / 2;
+ fullscreen_yoffset = (fullscreen_height - video.height) / 2;
+
+ break;
+ }
+ }
+}
+
+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, SDL_SRCCOLORKEY,
+ SDL_MapRGB(surface->format, 0x00, 0x00, 0x00));
+
+ SDL_WM_SetIcon(surface, NULL);
+#endif
+}
+
+void SDLInitVideoDisplay(void)
+{
+ if (!strEqual(setup.system.sdl_videodriver, ARG_DEFAULT))
+ SDL_putenv(getStringCat2("SDL_VIDEODRIVER=", setup.system.sdl_videodriver));
+
+ SDL_putenv("SDL_VIDEO_CENTERED=1");
/* initialize SDL video */
if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
video.default_depth = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
}
-inline void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
- boolean fullscreen)
+void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
+ boolean fullscreen)
{
-#ifdef FULLSCREEN_BUG
- int i;
static int screen_xy[][2] =
{
{ 640, 480 },
{ 1024, 768 },
{ -1, -1 }
};
-#endif
+ SDL_Rect **modes;
+ int i, j;
/* default: normal game window size */
fullscreen_width = video.width;
fullscreen_xoffset = 0;
fullscreen_yoffset = 0;
-#ifdef FULLSCREEN_BUG
- for (i=0; screen_xy[i][0] != -1; i++)
+ for (i = 0; screen_xy[i][0] != -1; i++)
{
- if (video.width <= screen_xy[i][0] && video.height <= screen_xy[i][1])
+ if (screen_xy[i][0] >= video.width && screen_xy[i][1] >= video.height)
{
- fullscreen_width = screen_xy[i][0];
+ fullscreen_width = screen_xy[i][0];
fullscreen_height = screen_xy[i][1];
+
break;
}
}
- fullscreen_xoffset = (fullscreen_width - video.width) / 2;
+ fullscreen_xoffset = (fullscreen_width - video.width) / 2;
fullscreen_yoffset = (fullscreen_height - video.height) / 2;
-#endif
+
+ /* get available hardware supported fullscreen modes */
+ modes = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_HWSURFACE);
+
+ if (modes == NULL)
+ {
+ /* no screen modes available => no fullscreen mode support */
+ video.fullscreen_available = FALSE;
+ }
+ else if (modes == (SDL_Rect **)-1)
+ {
+ /* fullscreen resolution is not restricted -- all resolutions available */
+ video.fullscreen_modes = checked_calloc(2 * sizeof(struct ScreenModeInfo));
+
+ /* use native video buffer size for fullscreen mode */
+ video.fullscreen_modes[0].width = video.width;
+ video.fullscreen_modes[0].height = video.height;
+
+ video.fullscreen_modes[1].width = -1;
+ video.fullscreen_modes[1].height = -1;
+ }
+ else
+ {
+ /* in this case, a certain number of screen modes is available */
+ int num_modes = 0;
+
+ for(i = 0; modes[i] != NULL; i++)
+ {
+ boolean found_mode = FALSE;
+
+ /* screen mode is smaller than video buffer size -- skip it */
+ if (modes[i]->w < video.width || modes[i]->h < video.height)
+ continue;
+
+ if (video.fullscreen_modes != NULL)
+ for (j = 0; video.fullscreen_modes[j].width != -1; j++)
+ if (modes[i]->w == video.fullscreen_modes[j].width &&
+ modes[i]->h == video.fullscreen_modes[j].height)
+ found_mode = TRUE;
+
+ if (found_mode) /* screen mode already stored -- skip it */
+ continue;
+
+ /* new mode found; add it to list of available fullscreen modes */
+
+ num_modes++;
+
+ video.fullscreen_modes = checked_realloc(video.fullscreen_modes,
+ (num_modes + 1) *
+ sizeof(struct ScreenModeInfo));
+
+ video.fullscreen_modes[num_modes - 1].width = modes[i]->w;
+ video.fullscreen_modes[num_modes - 1].height = modes[i]->h;
+
+ video.fullscreen_modes[num_modes].width = -1;
+ video.fullscreen_modes[num_modes].height = -1;
+ }
+
+ if (num_modes == 0)
+ {
+ /* no appropriate screen modes available => no fullscreen mode support */
+ video.fullscreen_available = FALSE;
+ }
+ }
+
+ /* set window icon */
+ SDLSetWindowIcon(program.sdl_icon_filename);
/* open SDL video output device (window or fullscreen mode) */
if (!SDLSetVideoMode(backbuffer, fullscreen))
*window = CreateBitmap(video.width, video.height, video.depth);
}
-inline boolean SDLSetVideoMode(DrawBuffer **backbuffer, boolean fullscreen)
+boolean SDLSetVideoMode(DrawBuffer **backbuffer, boolean fullscreen)
{
boolean success = TRUE;
int surface_flags_fullscreen = SURFACE_FLAGS | SDL_FULLSCREEN;
if (fullscreen && !video.fullscreen_enabled && video.fullscreen_available)
{
+ setFullscreenParameters(setup.fullscreen_mode);
+
video_xoffset = fullscreen_xoffset;
video_yoffset = fullscreen_yoffset;
/* do not try it again */
video.fullscreen_available = FALSE;
+
success = FALSE;
}
else
(*backbuffer)->surface = new_surface;
video.fullscreen_enabled = TRUE;
+ video.fullscreen_mode_current = setup.fullscreen_mode;
+
success = TRUE;
}
}
return success;
}
-inline void SDLCreateBitmapContent(Bitmap *new_bitmap,
- int width, int height, int depth)
+void SDLCreateBitmapContent(Bitmap *new_bitmap, int width, int height,
+ int depth)
{
SDL_Surface *surface_tmp, *surface_native;
new_bitmap->surface = surface_native;
}
-inline void SDLFreeBitmapPointers(Bitmap *bitmap)
+void SDLFreeBitmapPointers(Bitmap *bitmap)
{
if (bitmap->surface)
SDL_FreeSurface(bitmap->surface);
bitmap->surface_masked = NULL;
}
-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)
+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;
-#ifdef FULLSCREEN_BUG
if (src_bitmap == backbuffer)
{
src_x += video_xoffset;
src_y += video_yoffset;
}
-#endif
src_rect.x = src_x;
src_rect.y = src_y;
src_rect.w = width;
src_rect.h = height;
-#ifdef FULLSCREEN_BUG
if (dst_bitmap == backbuffer || dst_bitmap == window)
{
dst_x += video_xoffset;
dst_y += video_yoffset;
}
-#endif
dst_rect.x = dst_x;
dst_rect.y = dst_y;
SDL_UpdateRect(backbuffer->surface, dst_x, dst_y, width, height);
}
-inline void SDLFillRectangle(Bitmap *dst_bitmap, int x, int y,
- int width, int height, Uint32 color)
+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
-#ifdef FULLSCREEN_BUG
if (dst_bitmap == backbuffer || dst_bitmap == window)
{
x += video_xoffset;
y += video_yoffset;
}
-#endif
rect.x = x;
rect.y = y;
rect.w = width;
rect.h = height;
-#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
if (dst_bitmap == window)
SDL_UpdateRect(backbuffer->surface, x, y, width, height);
}
-inline void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y,
- int to_x, int to_y, Uint32 color)
+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))
+{
+ static boolean initialization_needed = TRUE;
+ static SDL_Surface *surface_source = NULL;
+ static SDL_Surface *surface_target = NULL;
+ static SDL_Surface *surface_black = NULL;
+ SDL_Surface *surface_screen = backbuffer->surface;
+ SDL_Surface *surface_cross = (bitmap_cross ? bitmap_cross->surface : NULL);
+ SDL_Rect src_rect, dst_rect;
+ int src_x = x, src_y = y;
+ int dst_x = x, dst_y = y;
+ unsigned int time_last, time_current;
+
+ src_rect.x = src_x;
+ src_rect.y = src_y;
+ src_rect.w = width;
+ src_rect.h = height;
+
+ dst_x += video_xoffset;
+ dst_y += video_yoffset;
+
+ dst_rect.x = dst_x;
+ dst_rect.y = dst_y;
+ dst_rect.w = width; /* (ignored) */
+ dst_rect.h = height; /* (ignored) */
+
+ if (initialization_needed)
+ {
+ unsigned int flags = SDL_SRCALPHA;
+
+ /* use same surface type as screen surface */
+ if ((surface_screen->flags & SDL_HWSURFACE))
+ flags |= SDL_HWSURFACE;
+ else
+ flags |= SDL_SWSURFACE;
+
+ /* create surface for temporary copy of screen buffer (source) */
+ if ((surface_source =
+ SDL_CreateRGBSurface(flags,
+ video.width,
+ video.height,
+ surface_screen->format->BitsPerPixel,
+ surface_screen->format->Rmask,
+ surface_screen->format->Gmask,
+ surface_screen->format->Bmask,
+ surface_screen->format->Amask)) == NULL)
+ Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+ /* create surface for cross-fading screen buffer (target) */
+ if ((surface_target =
+ SDL_CreateRGBSurface(flags,
+ video.width,
+ video.height,
+ surface_screen->format->BitsPerPixel,
+ surface_screen->format->Rmask,
+ surface_screen->format->Gmask,
+ surface_screen->format->Bmask,
+ surface_screen->format->Amask)) == NULL)
+ Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+ /* create black surface for fading from/to black */
+ if ((surface_black =
+ SDL_CreateRGBSurface(flags,
+ video.width,
+ video.height,
+ surface_screen->format->BitsPerPixel,
+ surface_screen->format->Rmask,
+ surface_screen->format->Gmask,
+ surface_screen->format->Bmask,
+ surface_screen->format->Amask)) == NULL)
+ Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError());
+
+ /* completely fill the surface with black color pixels */
+ SDL_FillRect(surface_black, NULL,
+ SDL_MapRGB(surface_screen->format, 0, 0, 0));
+
+ initialization_needed = FALSE;
+ }
+
+ /* 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);
+ }
+ 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);
+ }
+ 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);
+ }
+
+ time_current = SDL_GetTicks();
+
+ if (fade_mode == FADE_MODE_MELT)
+ {
+ 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);
+ SDL_SetAlpha(surface_target, 0, 0); /* disable alpha blending */
+
+ ypos[0] = -GetSimpleRandom(16);
+
+ for (i = 1 ; i < melt_columns; i++)
+ {
+ int r = GetSimpleRandom(3) - 1; /* randomly choose from { -1, 0, -1 } */
+
+ ypos[i] = ypos[i - 1] + r;
+
+ if (ypos[i] > 0)
+ ypos[i] = 0;
+ else
+ if (ypos[i] == -16)
+ ypos[i] = -15;
+ }
+
+ while (!done)
+ {
+ int steps_final;
+
+ 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();
+
+ SDL_UpdateRect(surface_screen, dst_x, dst_y, width, height);
+ }
+ }
+ }
+ else
+ {
+ 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 */
+ SDL_SetAlpha(surface_target, SDL_SRCALPHA, alpha_final);
+ SDL_BlitSurface(surface_target, &src_rect, surface_screen, &dst_rect);
+
+ if (draw_border_function != NULL)
+ draw_border_function();
+
+#if 1
+ /* only update the region of the screen that is affected from fading */
+ SDL_UpdateRect(surface_screen, dst_x, dst_y, width, height);
+#else
+ SDL_Flip(surface_screen);
+#endif
+ }
+ }
+
+ Delay(post_delay);
+}
+
+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;
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)
+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;
+ SDL_Surface *surface = src_bitmap->surface;
-#ifdef FULLSCREEN_BUG
- if (dst_bitmap == backbuffer || dst_bitmap == window)
+ if (src_bitmap == backbuffer || src_bitmap == window)
{
x += video_xoffset;
y += video_yoffset;
}
-#endif
switch (surface->format->BytesPerPixel)
{
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)
+{
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ x += video_xoffset;
+ y += video_yoffset;
+ }
+
+ 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_scaleDownBy2(SDL_Surface *src, SDL_Surface *dst)
+{
+ int x, y;
+ tColorRGBA *sp, *csp, *dp;
+ int sgap, dgap;
+
+ /* pointer setup */
+ sp = csp = (tColorRGBA *) src->pixels;
+ dp = (tColorRGBA *) dst->pixels;
+ sgap = src->pitch - src->w * 4;
+ 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, sx, sy, *sax, *say, *csax, *csay, csx, csy;
tColorRGBA *sp, *csp, *dp;
int sgap, 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);
-----------------------------------------------------------------------------
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
{
/* 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;
if ((sdl_image_tmp = IMG_Load(filename)) == NULL)
{
SetError("IMG_Load(): %s", SDL_GetError());
+
return NULL;
}
+ UPDATE_BUSY_STATE();
+
/* create native non-transparent surface for current image */
if ((new_bitmap->surface = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
{
SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+
return NULL;
}
+ 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)
{
SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+
return NULL;
}
+ UPDATE_BUSY_STATE();
+
/* free temporary surface */
SDL_FreeSurface(sdl_image_tmp);
void SDLSetMouseCursor(struct MouseCursorInfo *cursor_info)
{
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();
+ /* 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_info);
last_cursor_info = cursor_info;
}
- SDL_SetCursor(cursor_info ? 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 (!strEqual(setup.system.sdl_audiodriver, ARG_DEFAULT))
+ SDL_putenv(getStringCat2("SDL_AUDIODRIVER=", setup.system.sdl_audiodriver));
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)
{
}
else if (event->type == EVENT_MOTIONNOTIFY)
{
- if (((ButtonEvent *)event)->x > video_xoffset)
- ((ButtonEvent *)event)->x -= video_xoffset;
+ if (((MotionEvent *)event)->x > video_xoffset)
+ ((MotionEvent *)event)->x -= video_xoffset;
else
- ((ButtonEvent *)event)->x = 0;
- if (((ButtonEvent *)event)->y > video_yoffset)
- ((ButtonEvent *)event)->y -= video_yoffset;
+ ((MotionEvent *)event)->x = 0;
+ if (((MotionEvent *)event)->y > video_yoffset)
+ ((MotionEvent *)event)->y -= video_yoffset;
else
- ((ButtonEvent *)event)->y = 0;
+ ((MotionEvent *)event)->y = 0;
}
-#endif
}
void SDLInitJoysticks()
{
static boolean sdl_joystick_subsystem_initialized = FALSE;
+ boolean print_warning = !sdl_joystick_subsystem_initialized;
int i;
if (!sdl_joystick_subsystem_initialized)
}
}
- 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;
}
projects / rocksndiamonds.git / blobdiff