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author | Max Horn | 2002-09-19 16:06:51 +0000 |
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committer | Max Horn | 2002-09-19 16:06:51 +0000 |
commit | bb57506d48e783027dbf09ab44c88b40ed7d2fa4 (patch) | |
tree | ed90efab26e7287627b2a5ce6c8c6d6909a5cf5d /backends/sdl/sdl.cpp | |
parent | b46b35b54470180a882d2732b75d64243857cb54 (diff) | |
download | scummvm-rg350-bb57506d48e783027dbf09ab44c88b40ed7d2fa4.tar.gz scummvm-rg350-bb57506d48e783027dbf09ab44c88b40ed7d2fa4.tar.bz2 scummvm-rg350-bb57506d48e783027dbf09ab44c88b40ed7d2fa4.zip |
Added overlay to OSystem interface; implemented overlay in SDL backend (all other backends, including SDL_gl, still need to implement this!); changed NewGUI to make use of the overlay; added Cmd-Q as a shortcut for Quit on MacOS X
svn-id: r4971
Diffstat (limited to 'backends/sdl/sdl.cpp')
-rw-r--r-- | backends/sdl/sdl.cpp | 428 |
1 files changed, 302 insertions, 126 deletions
diff --git a/backends/sdl/sdl.cpp b/backends/sdl/sdl.cpp index eeea78fbee..ef8633bea4 100644 --- a/backends/sdl/sdl.cpp +++ b/backends/sdl/sdl.cpp @@ -24,6 +24,10 @@ #include "common/scaler.h" #include "common/engine.h" // Only #included for error() and warning() +// FIXME - this macro assumes that we use 565 mode. But what if we are in 555 mode? +#define RGB_TO_16(r,g,b) ((((r>>3)&0x1F) << 11) | (((g>>2)&0x3F) << 5) | ((b>>3)&0x1F)) +//#define RGB_TO_16(r,g,b) ((((r>>3)&0x1F) << 10) | (((g>>3)&0x1F) << 5) | ((b>>3)&0x1F)) + class OSystem_SDL_Normal : public OSystem_SDL_Common { public: @@ -36,12 +40,31 @@ public: // Set a parameter uint32 property(int param, Property *value); + // Overlay + virtual void show_overlay(); + virtual void hide_overlay(); + virtual void clear_overlay(); + virtual void grab_overlay(int16 *buf, int pitch); + virtual void copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h); + protected: + typedef void ScalerProc(uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, + uint8 *dstPtr, uint32 dstPitch, int width, int height); + + SDL_Surface *sdl_tmpscreen; // temporary screen (for scalers/overlay) SDL_Surface *sdl_hwscreen; // hardware screen + bool _overlay_visible; - void load_gfx_mode(); - void unload_gfx_mode(); + ScalerProc *_scaler_proc; + + virtual void draw_mouse(); + virtual void undraw_mouse(); + + virtual void load_gfx_mode(); + virtual void unload_gfx_mode(); void hotswap_gfx_mode(); + + int TMP_SCREEN_WIDTH; }; OSystem_SDL_Common *OSystem_SDL_Common::create() { @@ -52,7 +75,7 @@ void OSystem_SDL_Normal::set_palette(const byte *colors, uint start, uint num) { const byte *b = colors; uint i; SDL_Color *base = _cur_pal + start; - for(i=0;i!=num;i++) { + for(i = 0; i < num; i++) { base[i].r = b[0]; base[i].g = b[1]; base[i].b = b[2]; @@ -66,34 +89,151 @@ void OSystem_SDL_Normal::set_palette(const byte *colors, uint start, uint num) { _palette_changed_last = start + num; } +void OSystem_SDL_Normal::draw_mouse() { + if (!_overlay_visible) { + OSystem_SDL_Common::draw_mouse(); + } + + + if (_mouse_drawn || !_mouse_visible) + return; + + int x = _mouse_cur_state.x - _mouse_hotspot_x; + int y = _mouse_cur_state.y - _mouse_hotspot_y; + int w = _mouse_cur_state.w; + int h = _mouse_cur_state.h; + byte color; + byte *src = _mouse_data; // Image representing the mouse + uint16 *bak = (uint16*)_mouse_backup; // Surface used to backup the area obscured by the mouse + uint16 *dst; // Surface we are drawing into + + // clip the mouse rect, and addjust the src pointer accordingly + if (x < 0) { + w += x; + src -= x; + x = 0; + } + if (y < 0) { + h += y; + src -= y * _mouse_cur_state.w; + y = 0; + } + if (w > SCREEN_WIDTH - x) + w = SCREEN_WIDTH - x; + if (h > SCREEN_HEIGHT - y) + h = SCREEN_HEIGHT - y; + + // Adjust for tmp_screen offset + x++; + y++; + + // Store the bounding box so that undraw mouse can restore the area the + // mouse currently covers to its original content. + _mouse_old_state.x = x; + _mouse_old_state.y = y; + _mouse_old_state.w = w; + _mouse_old_state.h = h; + + // Quick check to see if anything has to be drawn at all + if (w <= 0 || h <= 0) + return; + + // Draw the mouse cursor; backup the covered area in "bak" + + if (SDL_LockSurface(sdl_tmpscreen) == -1) + error("SDL_LockSurface failed: %s.\n", SDL_GetError()); + + dst = (uint16 *)sdl_tmpscreen->pixels + y * TMP_SCREEN_WIDTH + x; + while (h > 0) { + int width = w; + while (width > 0) { + *bak++ = *dst; + color = *src++; + if (color != 0xFF) // 0xFF = transparent, don't draw + *dst = RGB_TO_16(_cur_pal[color].r, _cur_pal[color].g, _cur_pal[color].b); + dst++; + width--; + } + src += _mouse_cur_state.w - w; + bak += MAX_MOUSE_W - w; + dst += TMP_SCREEN_WIDTH - w; + h--; + } + + SDL_UnlockSurface(sdl_tmpscreen); + + // Mark as dirty + add_dirty_rect(x, y, w, h); + + // Finally, set the flag to indicate the mouse has been drawn + _mouse_drawn = true; +} + +void OSystem_SDL_Normal::undraw_mouse() { + if (!_overlay_visible) { + OSystem_SDL_Common::undraw_mouse(); + } + + + if (!_mouse_drawn) + return; + _mouse_drawn = false; + + uint16 *dst, *bak = (uint16 *)_mouse_backup; + const int old_mouse_x = _mouse_old_state.x; + const int old_mouse_y = _mouse_old_state.y; + const int old_mouse_w = _mouse_old_state.w; + const int old_mouse_h = _mouse_old_state.h; + int x,y; + + if (SDL_LockSurface(sdl_tmpscreen) == -1) + error("SDL_LockSurface failed: %s.\n", SDL_GetError()); + + // No need to do clipping here, since draw_mouse() did that already + + dst = (uint16 *)sdl_tmpscreen->pixels + old_mouse_y * TMP_SCREEN_WIDTH + old_mouse_x; + for (y = 0; y < old_mouse_h; ++y, bak += MAX_MOUSE_W, dst += TMP_SCREEN_WIDTH) { + for (x = 0; x < old_mouse_w; ++x) { + dst[x] = bak[x]; + } + } + + add_dirty_rect(old_mouse_x, old_mouse_y, old_mouse_w, old_mouse_h); + + SDL_UnlockSurface(sdl_tmpscreen); +} + void OSystem_SDL_Normal::load_gfx_mode() { force_full = true; scaling = 1; _mode_flags = 0; + _overlay_visible = false; - _sai_func = NULL; + _scaler_proc = NULL; sdl_tmpscreen = NULL; + TMP_SCREEN_WIDTH = (SCREEN_WIDTH + 3); switch(_mode) { case GFX_2XSAI: scaling = 2; - _sai_func = _2xSaI; + _scaler_proc = _2xSaI; break; case GFX_SUPER2XSAI: scaling = 2; - _sai_func = Super2xSaI; + _scaler_proc = Super2xSaI; break; case GFX_SUPEREAGLE: scaling = 2; - _sai_func = SuperEagle; + _scaler_proc = SuperEagle; break; case GFX_ADVMAME2X: scaling = 2; - _sai_func = AdvMame2x; + _scaler_proc = AdvMame2x; break; case GFX_DOUBLESIZE: scaling = 2; + _scaler_proc = Normal2x; break; case GFX_TRIPLESIZE: @@ -102,11 +242,13 @@ void OSystem_SDL_Normal::load_gfx_mode() { goto normal_mode; } scaling = 3; + _scaler_proc = Normal3x; break; case GFX_NORMAL: normal_mode:; scaling = 1; + _scaler_proc = Normal1x; break; } @@ -114,55 +256,30 @@ normal_mode:; if (sdl_screen == NULL) error("sdl_screen failed failed"); - if (_sai_func) { - uint16 *tmp_screen = (uint16*)calloc((SCREEN_WIDTH+3)*(SCREEN_HEIGHT+3),sizeof(uint16)); - _mode_flags = DF_WANT_RECT_OPTIM | DF_SEPARATE_TEMPSCREEN | DF_UPDATE_EXPAND_1_PIXEL; - - sdl_hwscreen = SDL_SetVideoMode(SCREEN_WIDTH * scaling, SCREEN_HEIGHT * scaling, 16, - _full_screen ? (SDL_FULLSCREEN|SDL_SWSURFACE) : SDL_SWSURFACE - ); - if (sdl_hwscreen == NULL) - error("sdl_hwscreen failed"); - - /* Need some extra bytes around when using 2XSAI */ - if (sdl_hwscreen->format->Rmask == 0x7C00) // HACK HACK HACK - Init_2xSaI(555); - else - Init_2xSaI(565); - sdl_tmpscreen = SDL_CreateRGBSurfaceFrom(tmp_screen, - SCREEN_WIDTH + 3, SCREEN_HEIGHT + 3, 16, (SCREEN_WIDTH + 3)*2, - sdl_hwscreen->format->Rmask, - sdl_hwscreen->format->Gmask, - sdl_hwscreen->format->Bmask, - sdl_hwscreen->format->Amask); - - if (sdl_tmpscreen == NULL) - error("sdl_tmpscreen failed"); - - } else { - switch(scaling) { - case 3: - _sai_func = Normal3x; - break; - case 2: - _sai_func = Normal2x; - break; - case 1: - _sai_func = Normal1x; - break; - } - - _mode_flags = DF_WANT_RECT_OPTIM | DF_REAL_8BIT; - - sdl_hwscreen = SDL_SetVideoMode(SCREEN_WIDTH * scaling, SCREEN_HEIGHT * scaling, 8, - _full_screen ? (SDL_FULLSCREEN|SDL_SWSURFACE) : SDL_SWSURFACE - ); - if (sdl_hwscreen == NULL) - error("sdl_hwscreen failed"); - - sdl_tmpscreen = sdl_screen; - } + uint16 *tmp_screen = (uint16*)calloc(TMP_SCREEN_WIDTH*(SCREEN_HEIGHT+3),sizeof(uint16)); + _mode_flags = DF_WANT_RECT_OPTIM | DF_UPDATE_EXPAND_1_PIXEL; + sdl_hwscreen = SDL_SetVideoMode(SCREEN_WIDTH * scaling, SCREEN_HEIGHT * scaling, 16, + _full_screen ? (SDL_FULLSCREEN|SDL_SWSURFACE) : SDL_SWSURFACE + ); + if (sdl_hwscreen == NULL) + error("sdl_hwscreen failed"); + + /* Need some extra bytes around when using 2XSAI */ + if (sdl_hwscreen->format->Rmask == 0x7C00) // HACK HACK HACK + Init_2xSaI(555); + else + Init_2xSaI(565); + sdl_tmpscreen = SDL_CreateRGBSurfaceFrom(tmp_screen, + TMP_SCREEN_WIDTH, SCREEN_HEIGHT + 3, 16, TMP_SCREEN_WIDTH*2, + sdl_hwscreen->format->Rmask, + sdl_hwscreen->format->Gmask, + sdl_hwscreen->format->Bmask, + sdl_hwscreen->format->Amask); + + if (sdl_tmpscreen == NULL) + error("sdl_tmpscreen failed"); + // keyboard cursor control, some other better place for it? km.x_max = SCREEN_WIDTH * scaling - 1; km.y_max = SCREEN_HEIGHT * scaling - 1; @@ -182,11 +299,11 @@ void OSystem_SDL_Normal::unload_gfx_mode() { sdl_hwscreen = NULL; } - if (_mode_flags & DF_SEPARATE_TEMPSCREEN) { + if (sdl_tmpscreen) { free((uint16*)sdl_tmpscreen->pixels); SDL_FreeSurface(sdl_tmpscreen); + sdl_tmpscreen = NULL; } - sdl_tmpscreen = NULL; } void OSystem_SDL_Normal::update_screen() { @@ -194,14 +311,12 @@ void OSystem_SDL_Normal::update_screen() { if (sdl_hwscreen == NULL) return; // Can this really happen? - /* First make sure the mouse is drawn, if it should be drawn. */ + // First make sure the mouse is drawn, if it should be drawn. draw_mouse(); - /* Palette update in case we are NOT in "real" 8 bit color mode. - * Must take place before updating the screen, since the palette must - * be set up for conversion from 8bit to 16bit. - */ - if (((_mode_flags & DF_REAL_8BIT) == 0) && _palette_changed_last != 0) { + // Check whether the palette was changed in the meantime and update the + // screen surface accordingly. + if (_palette_changed_last != 0) { SDL_SetColors(sdl_screen, _cur_pal + _palette_changed_first, _palette_changed_first, _palette_changed_last - _palette_changed_first); @@ -222,7 +337,7 @@ void OSystem_SDL_Normal::update_screen() { force_full = true; } - /* force a full redraw if requested */ + // Force a full redraw if requested if (force_full) { num_dirty_rects = 1; @@ -232,20 +347,20 @@ void OSystem_SDL_Normal::update_screen() { dirty_rect_list[0].h = SCREEN_HEIGHT; } - /* Only draw anything if necessary */ + // Only draw anything if necessary if (num_dirty_rects > 0) { SDL_Rect *r; uint32 srcPitch, dstPitch; SDL_Rect *last_rect = dirty_rect_list + num_dirty_rects; - /* Convert appropriate parts of the image into 16bpp */ - if ((_mode_flags & DF_REAL_8BIT) == 0) { + // Convert appropriate parts of the 8bpp image into 16bpp + if (!_overlay_visible) { SDL_Rect dst; for(r=dirty_rect_list; r!=last_rect; ++r) { dst = *r; - dst.x++; - dst.y++; + dst.x++; // Shift rect by one since 2xSai needs to acces the data around + dst.y++; // any pixel to scale it, and we want to avoid mem access crashes. if (SDL_BlitSurface(sdl_screen, r, sdl_tmpscreen, &dst) != 0) error("SDL_BlitSurface failed: %s", SDL_GetError()); } @@ -257,46 +372,24 @@ void OSystem_SDL_Normal::update_screen() { srcPitch = sdl_tmpscreen->pitch; dstPitch = sdl_hwscreen->pitch; - if ((_mode_flags & DF_REAL_8BIT) == 0) { - for(r=dirty_rect_list; r!=last_rect; ++r) { - register int dst_y = r->y + _current_shake_pos; - register int dst_h = 0; - if (dst_y < SCREEN_HEIGHT) { - dst_h = r->h; - if (dst_h > SCREEN_HEIGHT - dst_y) - dst_h = SCREEN_HEIGHT - dst_y; - - r->x <<= 1; - dst_y <<= 1; - - _sai_func((byte*)sdl_tmpscreen->pixels + (r->x+2) + (r->y+1)*srcPitch, srcPitch, NULL, - (byte*)sdl_hwscreen->pixels + r->x*scaling + dst_y*dstPitch, dstPitch, r->w, dst_h); - } + for(r=dirty_rect_list; r!=last_rect; ++r) { + register int dst_y = r->y + _current_shake_pos; + register int dst_h = 0; + if (dst_y < SCREEN_HEIGHT) { + dst_h = r->h; + if (dst_h > SCREEN_HEIGHT - dst_y) + dst_h = SCREEN_HEIGHT - dst_y; - r->y = dst_y; - r->w <<= 1; - r->h = dst_h << 1; - } - } else { - for(r=dirty_rect_list; r!=last_rect; ++r) { - register int dst_y = r->y + _current_shake_pos; - register int dst_h = 0; - if (dst_y < SCREEN_HEIGHT) { - dst_h = r->h; - if (dst_h > SCREEN_HEIGHT - dst_y) - dst_h = SCREEN_HEIGHT - dst_y; - - dst_y *= scaling; - - _sai_func((byte*)sdl_tmpscreen->pixels + r->x + r->y*srcPitch, srcPitch, NULL, - (byte*)sdl_hwscreen->pixels + r->x*scaling + dst_y*dstPitch, dstPitch, r->w, dst_h); - } + dst_y *= scaling; - r->x *= scaling; - r->y = dst_y; - r->w *= scaling; - r->h = dst_h * scaling; + _scaler_proc((byte*)sdl_tmpscreen->pixels + (r->x*2+2) + (r->y+1)*srcPitch, srcPitch, NULL, + (byte*)sdl_hwscreen->pixels + r->x*2*scaling + dst_y*dstPitch, dstPitch, r->w, dst_h); } + + r->x *= scaling; + r->y = dst_y; + r->w *= scaling; + r->h = dst_h * scaling; } if (force_full) { @@ -308,19 +401,6 @@ void OSystem_SDL_Normal::update_screen() { SDL_UnlockSurface(sdl_hwscreen); } - /* Palette update in case we are in "real" 8 bit color mode. - * Must take place after the screen data was updated, since with - * "real" 8bit mode, palatte changes may be visible immediatly, - * and we want to avoid any ugly effects. - */ - if (_mode_flags & DF_REAL_8BIT && _palette_changed_last != 0) { - SDL_SetColors(sdl_hwscreen, _cur_pal + _palette_changed_first, - _palette_changed_first, - _palette_changed_last - _palette_changed_first); - - _palette_changed_last = 0; - } - if (num_dirty_rects > 0) { /* Finally, blit all our changes to the screen */ SDL_UpdateRects(sdl_hwscreen, num_dirty_rects, dirty_rect_list); @@ -345,13 +425,10 @@ void OSystem_SDL_Normal::hotswap_gfx_mode() { force_full = true; - /* reset palette */ - if (_mode_flags & DF_REAL_8BIT) - SDL_SetColors(sdl_hwscreen, _cur_pal, 0, 256); - else - SDL_SetColors(sdl_screen, _cur_pal, 0, 256); + // reset palette + SDL_SetColors(sdl_screen, _cur_pal, 0, 256); - /* blit image */ + // blit image OSystem_SDL_Normal::copy_rect(bak_mem, SCREEN_WIDTH, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT); free(bak_mem); @@ -372,3 +449,102 @@ uint32 OSystem_SDL_Normal::property(int param, Property *value) { return OSystem_SDL_Common::property(param, value); } + + +void OSystem_SDL_Normal::show_overlay() +{ + // hide the mouse + undraw_mouse(); + + _overlay_visible = true; + clear_overlay(); +} + +void OSystem_SDL_Normal::hide_overlay() +{ + _overlay_visible = false; + force_full = true; +} + +void OSystem_SDL_Normal::clear_overlay() +{ + if (!_overlay_visible) + return; + + // hide the mouse + undraw_mouse(); + + // Clear the overlay by making the game screen "look through" everywhere. + SDL_Rect src, dst; + src.x = src.y = 0; + dst.x = dst.y = 1; + src.w = dst.w = SCREEN_WIDTH; + src.h = dst.h = SCREEN_HEIGHT; + if (SDL_BlitSurface(sdl_screen, &src, sdl_tmpscreen, &dst) != 0) + error("SDL_BlitSurface failed: %s", SDL_GetError()); + + force_full = true; +} + +void OSystem_SDL_Normal::grab_overlay(int16 *buf, int pitch) +{ + if (!_overlay_visible) + return; + + if (sdl_tmpscreen == NULL) + return; + + // hide the mouse + undraw_mouse(); + + if (SDL_LockSurface(sdl_tmpscreen) == -1) + error("SDL_LockSurface failed: %s.\n", SDL_GetError()); + + int16 *src = (int16 *)sdl_tmpscreen->pixels + TMP_SCREEN_WIDTH + 1; + int h = SCREEN_HEIGHT; + do { + memcpy(buf, src, SCREEN_WIDTH*2); + src += TMP_SCREEN_WIDTH; + buf += pitch; + } while (--h); + + SDL_UnlockSurface(sdl_tmpscreen); +} + +void OSystem_SDL_Normal::copy_rect_overlay(const int16 *buf, int pitch, int x, int y, int w, int h) +{ + if (!_overlay_visible) + return; + + if (sdl_tmpscreen == NULL) + return; + + // Clip the coordinates + if (x < 0) { w+=x; buf-=x; x = 0; } + if (y < 0) { h+=y; buf-=y*pitch; y = 0; } + if (w > SCREEN_WIDTH-x) { w = SCREEN_WIDTH - x; } + if (h > SCREEN_HEIGHT-y) { h = SCREEN_HEIGHT - y; } + if (w <= 0 || h <= 0) + return; + + // Mark the modified region as dirty + cksum_valid = false; + add_dirty_rect(x, y, w, h); + + /* FIXME: undraw mouse only if the draw rect intersects with the mouse rect */ + undraw_mouse(); + + if (SDL_LockSurface(sdl_tmpscreen) == -1) + error("SDL_LockSurface failed: %s.\n", SDL_GetError()); + + int16 *dst = (int16 *)sdl_tmpscreen->pixels + (y+1) * TMP_SCREEN_WIDTH + (x+1); + do { + memcpy(dst, buf, w*2); + dst += TMP_SCREEN_WIDTH; + buf += pitch; + } while (--h); + + SDL_UnlockSurface(sdl_tmpscreen); +} + + |