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author | Ludvig Strigeus | 2002-04-12 10:34:46 +0000 |
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committer | Ludvig Strigeus | 2002-04-12 10:34:46 +0000 |
commit | 3a4fa636ee4eaeee6bd50d6fcdedf4c3306318b0 (patch) | |
tree | 1fa0750adb7c62924fdbef5c818e0e104ecc5820 /sdl.cpp | |
parent | 6e508eed2962fc29f16a4507d056a3c3483c3e6a (diff) | |
download | scummvm-rg350-3a4fa636ee4eaeee6bd50d6fcdedf4c3306318b0.tar.gz scummvm-rg350-3a4fa636ee4eaeee6bd50d6fcdedf4c3306318b0.tar.bz2 scummvm-rg350-3a4fa636ee4eaeee6bd50d6fcdedf4c3306318b0.zip |
code cleanup - prepares for simon inclusion
svn-id: r3910
Diffstat (limited to 'sdl.cpp')
-rw-r--r-- | sdl.cpp | 836 |
1 files changed, 49 insertions, 787 deletions
@@ -33,7 +33,10 @@ static unsigned int scale; -Scumm *scumm; +/* FIXME: Global variable names should be prepended with g_ + * Only member variables should have a _ in front of the name. */ + +Scumm *g_scumm; ScummDebugger debugger; Gui gui; OSystem _system; @@ -264,7 +267,7 @@ void setShakePos(Scumm *s, int shake_pos) int old_shake_pos = current_shake_pos; int dirty_height, dirty_blackheight; int dirty_top, dirty_blacktop; - + if (shake_pos != old_shake_pos) { current_shake_pos = shake_pos; fullRedraw = true; @@ -272,19 +275,9 @@ void setShakePos(Scumm *s, int shake_pos) /* Old shake pos was current_shake_pos, new is shake_pos. * Move the screen up or down to account for the change. */ - if (scale == 3) { - SDL_Rect dstr = { 0, shake_pos * 3, 960, 600 }; - SDL_Rect srcr = { 0, old_shake_pos * 3, 960, 600 }; - SDL_BlitSurface(screen, &srcr, screen, &dstr); - } else if (scale == 2) { - SDL_Rect dstr = { 0, shake_pos * 2, 640, 400 }; - SDL_Rect srcr = { 0, old_shake_pos * 2, 640, 400 }; - SDL_BlitSurface(screen, &srcr, screen, &dstr); - } else { - SDL_Rect dstr = { 0, shake_pos, 320, 200 }; - SDL_Rect srcr = { 0, old_shake_pos, 320, 200 }; - SDL_BlitSurface(screen, &srcr, screen, &dstr); - } + SDL_Rect dstr = { 0, shake_pos*scale, 320*scale, 200*scale }; + SDL_Rect srcr = { 0, old_shake_pos*scale, 320*scale, 200*scale }; + SDL_BlitSurface(screen, &srcr, screen, &dstr); /* Also adjust the mouse pointer backup Y coordinate. * There is a minor mouse glitch when the mouse is moved @@ -306,22 +299,10 @@ void setShakePos(Scumm *s, int shake_pos) } /* Fill the dirty area with blackness or the scumm image */ - { - if (scale == 3) { - SDL_Rect blackrect = - { 0, dirty_blacktop * 3, 960, dirty_blackheight * 3 }; - SDL_FillRect(screen, &blackrect, 0); - } else if (scale == 2) { - SDL_Rect blackrect = - { 0, dirty_blacktop * 2, 640, dirty_blackheight * 2 }; - SDL_FillRect(screen, &blackrect, 0); - } else { - SDL_Rect blackrect = { 0, dirty_blacktop, 320, dirty_blackheight }; - SDL_FillRect(screen, &blackrect, 0); - } + SDL_Rect blackrect = {0, dirty_blacktop*scale, 320*scale, dirty_blackheight*scale}; + SDL_FillRect(screen, &blackrect, 0); - s->redrawLines(dirty_top, dirty_top + dirty_height); - } + s->redrawLines(dirty_top, dirty_top + dirty_height); } } @@ -473,7 +454,7 @@ void updateScreen2xSaI(Scumm *s) updatePalette(s); if (fullRedraw) { - r.x = 0; + r.x = 0; r.y = 0; r.w = 320; r.h = 200; @@ -484,7 +465,6 @@ void updateScreen2xSaI(Scumm *s) } else if (numDirtyRects) { SDL_Rect *dr; int i; - for (i = 0; i < numDirtyRects; i++) { dr = &dirtyRects[i]; Draw2xSaI(dr, s->_videoMode); @@ -689,7 +669,7 @@ void drawMouse(Scumm *s, int xdraw, int ydraw, int w, int h, byte *buf, void fill_sound(void *userdata, Uint8 * stream, int len) { - scumm->mixWaves((int16 *) stream, len >> 1); + g_scumm->mixWaves((int16 *) stream, len >> 1); } static int cd_track, cd_num_loops = 0, cd_start_frame, cd_end_frame; @@ -703,7 +683,8 @@ void cd_play(Scumm *s, int track, int num_loops, int start_frame, int end_frame) { - scumm->_vars[14] = 0; + /* FIXME: what does this code do? */ + g_scumm->_vars[14] = 0; if (!num_loops && !start_frame) return; @@ -856,7 +837,7 @@ void initGraphics(Scumm *s, bool fullScreen, unsigned int scaleFactor) if (!snd_driv.wave_based()) { /* Create Music Thread */ - SDL_CreateThread((int (*)(void *))&music_thread, &scumm); + SDL_CreateThread((int (*)(void *))&music_thread, s); } if (s->_videoMode == VIDEO_SCALE) { @@ -926,16 +907,16 @@ void launcherLoop() int delta = 0; last_time = SDL_GetTicks(); - gui.launcher(scumm); + gui.launcher(g_scumm); do { - updateScreen(scumm); + updateScreen(g_scumm); new_time = SDL_GetTicks(); - waitForTimer(scumm, delta * 15 + last_time - new_time); + waitForTimer(g_scumm, delta * 15 + last_time - new_time); last_time = SDL_GetTicks(); if (gui._active) { - gui.loop(scumm); + gui.loop(g_scumm); delta = 5; } else error("gui closed!"); @@ -979,63 +960,29 @@ int main(int argc, char *argv[]) #endif - if (detector.detectMain(argc, argv)) return (-1); - if (detector._features & GF_OLD256) - scumm = new Scumm_v3; - else if (detector._features & GF_SMALL_HEADER) // this force loomCD as v4 - scumm = new Scumm_v4; - else if (detector._features & GF_AFTER_V7) - scumm = new Scumm_v7; - else if (detector._features & GF_AFTER_V6) // this force SamnmaxCD as v6 - scumm = new Scumm_v6; - else - scumm = new Scumm_v5; - - scumm->_fullScreen = detector._fullScreen; - scumm->_debugMode = detector._debugMode; - scumm->_bootParam = detector._bootParam; - scumm->_scale = detector._scale; - scumm->_gameDataPath = detector._gameDataPath; - scumm->_gameTempo = detector._gameTempo; - scumm->_soundEngine = detector._soundEngine; - scumm->_videoMode = detector._videoMode; - scumm->_exe_name = detector._exe_name; - scumm->_gameId = detector._gameId; - scumm->_gameText = detector._gameText; - scumm->_features = detector._features; - scumm->_soundCardType = detector._soundCardType; - scumm->_noSubtitles = detector._noSubtitles; - scumm->_midi_driver = detector._midi_driver; - scumm->_cdrom = detector._cdrom; - - scumm->delta = 6; - if (detector._restore) { - scumm->_saveLoadSlot = 0; - scumm->_saveLoadFlag = 2; - scumm->_saveLoadCompatible = false; + /* Simon the Sorcerer? */ + if (detector._gameId >= GID_SIMON_FIRST && detector._gameId <= GID_SIMON_LAST) { + /* Simon the Sorcerer. Completely different initialization */ + } else { + Scumm *scumm = Scumm::createFromDetector(&detector); + g_scumm = scumm; + + sound.initialize(scumm, &snd_driv); + + /* bind to Gui */ + scumm->_gui = &gui; + gui.init(scumm); /* Reinit GUI after loading a game */ + + /* Bind to OSystem */ + scumm->_system = &_system; + _system.last_time = 0; + + scumm->go(); } - - scumm->_gui = &gui; -// gui.init(scumm); - sound.initialize(scumm, &snd_driv); - - scumm->delta = 0; - scumm->_system = &_system; - - _system.last_time = 0; - - scumm->launch(); - -// scumm->runScript(1,0,0,&scumm->_bootParam); - -// scumm->scummMain(argc, argv); // Todo: need to change that as well - - gui.init(scumm); /* Reinit GUI after loading a game */ - scumm->mainRun(); - + return 0; } @@ -1243,12 +1190,15 @@ int gfxPrimitivesCompareInt(const void *a, const void *b) return (*(const int *)a) - (*(const int *)b); } +/* FIXME: What's the purpose of this function? + * Functions should start with a small letter. + */ void BoxTest(int num) { BoxCoords box; Sint16 rx1[4], ry1[4]; - scumm->getBoxCoordinates(num, &box); + g_scumm->getBoxCoordinates(num, &box); rx1[0] = box.ul.x * 2; ry1[0] = box.ul.y * 2 + 32; rx1[1] = box.ur.x * 2; @@ -1263,711 +1213,23 @@ void BoxTest(int num) } +/* FIXME: 2xSAI Functions should be moved to a separate + * source file + */ - /********** 2XSAI Filter *****************/ -static uint32 colorMask = 0xF7DEF7DE; -static uint32 lowPixelMask = 0x08210821; -static uint32 qcolorMask = 0xE79CE79C; -static uint32 qlowpixelMask = 0x18631863; -static uint32 redblueMask = 0xF81F; -static uint32 greenMask = 0x7E0; - -int Init_2xSaI(uint32 BitFormat) -{ - if (BitFormat == 565) { - colorMask = 0xF7DEF7DE; - lowPixelMask = 0x08210821; - qcolorMask = 0xE79CE79C; - qlowpixelMask = 0x18631863; - redblueMask = 0xF81F; - greenMask = 0x7E0; - } else if (BitFormat == 555) { - colorMask = 0x7BDE7BDE; - lowPixelMask = 0x04210421; - qcolorMask = 0x739C739C; - qlowpixelMask = 0x0C630C63; - redblueMask = 0x7C1F; - greenMask = 0x3E0; - } else { - return 0; - } - - return 1; -} - -static inline int GetResult1(uint32 A, uint32 B, uint32 C, uint32 D, - uint32 /* E */ ) -{ - int x = 0; - int y = 0; - int r = 0; - - if (A == C) - x += 1; - else if (B == C) - y += 1; - if (A == D) - x += 1; - else if (B == D) - y += 1; - if (x <= 1) - r += 1; - if (y <= 1) - r -= 1; - return r; -} - -static inline int GetResult2(uint32 A, uint32 B, uint32 C, uint32 D, - uint32 /* E */ ) -{ - int x = 0; - int y = 0; - int r = 0; - - if (A == C) - x += 1; - else if (B == C) - y += 1; - if (A == D) - x += 1; - else if (B == D) - y += 1; - if (x <= 1) - r -= 1; - if (y <= 1) - r += 1; - return r; -} - -static inline int GetResult(uint32 A, uint32 B, uint32 C, uint32 D) -{ - int x = 0; - int y = 0; - int r = 0; - - if (A == C) - x += 1; - else if (B == C) - y += 1; - if (A == D) - x += 1; - else if (B == D) - y += 1; - if (x <= 1) - r += 1; - if (y <= 1) - r -= 1; - return r; -} - -static inline uint32 INTERPOLATE(uint32 A, uint32 B) -{ - if (A != B) { - return (((A & colorMask) >> 1) + ((B & colorMask) >> 1) + - (A & B & lowPixelMask)); - } else - return A; -} - -static inline uint32 Q_INTERPOLATE(uint32 A, uint32 B, uint32 C, uint32 D) -{ - register uint32 x = ((A & qcolorMask) >> 2) + - ((B & qcolorMask) >> 2) + - ((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2); - register uint32 y = (A & qlowpixelMask) + - (B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask); - - y = (y >> 2) & qlowpixelMask; - return x + y; -} - -#define BLUE_MASK565 0x001F001F -#define RED_MASK565 0xF800F800 -#define GREEN_MASK565 0x07E007E0 - -#define BLUE_MASK555 0x001F001F -#define RED_MASK555 0x7C007C00 -#define GREEN_MASK555 0x03E003E0 - -void Super2xSaI(uint8 *srcPtr, uint32 srcPitch, - uint8 *deltaPtr, uint8 *dstPtr, uint32 dstPitch, - int width, int height) -{ - uint16 *bP; - uint8 *dP; - uint32 inc_bP; - - { - uint32 Nextline = srcPitch >> 1; - inc_bP = 1; - - while (height--) { - bP = (uint16 *)srcPtr; - dP = (uint8 *)dstPtr; - - for (uint32 finish = width; finish; finish -= inc_bP) { - uint32 color4, color5, color6; - uint32 color1, color2, color3; - uint32 colorA0, colorA1, colorA2, colorA3, - colorB0, colorB1, colorB2, colorB3, colorS1, colorS2; - uint32 product1a, product1b, product2a, product2b; - -//--------------------------------------- B1 B2 -// 4 5 6 S2 -// 1 2 3 S1 -// A1 A2 - - colorB0 = *(bP - Nextline - 1); - colorB1 = *(bP - Nextline); - colorB2 = *(bP - Nextline + 1); - colorB3 = *(bP - Nextline + 2); - - color4 = *(bP - 1); - color5 = *(bP); - color6 = *(bP + 1); - colorS2 = *(bP + 2); - - color1 = *(bP + Nextline - 1); - color2 = *(bP + Nextline); - color3 = *(bP + Nextline + 1); - colorS1 = *(bP + Nextline + 2); - - colorA0 = *(bP + Nextline + Nextline - 1); - colorA1 = *(bP + Nextline + Nextline); - colorA2 = *(bP + Nextline + Nextline + 1); - colorA3 = *(bP + Nextline + Nextline + 2); - -//-------------------------------------- - if (color2 == color6 && color5 != color3) { - product2b = product1b = color2; - } else if (color5 == color3 && color2 != color6) { - product2b = product1b = color5; - } else if (color5 == color3 && color2 == color6) { - register int r = 0; - - r += GetResult(color6, color5, color1, colorA1); - r += GetResult(color6, color5, color4, colorB1); - r += GetResult(color6, color5, colorA2, colorS1); - r += GetResult(color6, color5, colorB2, colorS2); - - if (r > 0) - product2b = product1b = color6; - else if (r < 0) - product2b = product1b = color5; - else { - product2b = product1b = INTERPOLATE(color5, color6); - } - } else { - if (color6 == color3 && color3 == colorA1 - && color2 != colorA2 && color3 != colorA0) - product2b = Q_INTERPOLATE(color3, color3, color3, color2); - else if (color5 == color2 && color2 == colorA2 - && colorA1 != color3 && color2 != colorA3) - product2b = Q_INTERPOLATE(color2, color2, color2, color3); - else - product2b = INTERPOLATE(color2, color3); - - if (color6 == color3 && color6 == colorB1 - && color5 != colorB2 && color6 != colorB0) - product1b = Q_INTERPOLATE(color6, color6, color6, color5); - else if (color5 == color2 && color5 == colorB2 - && colorB1 != color6 && color5 != colorB3) - product1b = Q_INTERPOLATE(color6, color5, color5, color5); - else - product1b = INTERPOLATE(color5, color6); - } - - if (color5 == color3 && color2 != color6 && color4 == color5 - && color5 != colorA2) - product2a = INTERPOLATE(color2, color5); - else - if (color5 == color1 && color6 == color5 - && color4 != color2 && color5 != colorA0) - product2a = INTERPOLATE(color2, color5); - else - product2a = color2; - - if (color2 == color6 && color5 != color3 && color1 == color2 - && color2 != colorB2) - product1a = INTERPOLATE(color2, color5); - else - if (color4 == color2 && color3 == color2 - && color1 != color5 && color2 != colorB0) - product1a = INTERPOLATE(color2, color5); - else - product1a = color5; - - product1a = product1a | (product1b << 16); - product2a = product2a | (product2b << 16); - - *((uint32 *)dP) = product1a; - *((uint32 *)(dP + dstPitch)) = product2a; - - bP += inc_bP; - dP += sizeof(uint32); - } // end of for ( finish= width etc..) - - srcPtr += srcPitch; - dstPtr += dstPitch * 2; - deltaPtr += srcPitch; - } // while (height--) - } -} - -void SuperEagle(uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, - uint8 *dstPtr, uint32 dstPitch, int width, int height) -{ - uint8 *dP; - uint16 *bP; - uint32 inc_bP; - - { - inc_bP = 1; - - uint32 Nextline = srcPitch >> 1; - - while (height--) { - bP = (uint16 *)srcPtr; - dP = dstPtr; - for (uint32 finish = width; finish; finish -= inc_bP) { - uint32 color4, color5, color6; - uint32 color1, color2, color3; - uint32 colorA1, colorA2, colorB1, colorB2, colorS1, colorS2; - uint32 product1a, product1b, product2a, product2b; - - colorB1 = *(bP - Nextline); - colorB2 = *(bP - Nextline + 1); - - color4 = *(bP - 1); - color5 = *(bP); - color6 = *(bP + 1); - colorS2 = *(bP + 2); - - color1 = *(bP + Nextline - 1); - color2 = *(bP + Nextline); - color3 = *(bP + Nextline + 1); - colorS1 = *(bP + Nextline + 2); - - colorA1 = *(bP + Nextline + Nextline); - colorA2 = *(bP + Nextline + Nextline + 1); - - // -------------------------------------- - if (color2 == color6 && color5 != color3) { - product1b = product2a = color2; - if ((color1 == color2) || (color6 == colorB2)) { - product1a = INTERPOLATE(color2, color5); - product1a = INTERPOLATE(color2, product1a); - } else { - product1a = INTERPOLATE(color5, color6); - } - - if ((color6 == colorS2) || (color2 == colorA1)) { - product2b = INTERPOLATE(color2, color3); - product2b = INTERPOLATE(color2, product2b); - } else { - product2b = INTERPOLATE(color2, color3); - } - } else if (color5 == color3 && color2 != color6) { - product2b = product1a = color5; - - if ((colorB1 == color5) || (color3 == colorS1)) { - product1b = INTERPOLATE(color5, color6); - product1b = INTERPOLATE(color5, product1b); - } else { - product1b = INTERPOLATE(color5, color6); - } - - if ((color3 == colorA2) || (color4 == color5)) { - product2a = INTERPOLATE(color5, color2); - product2a = INTERPOLATE(color5, product2a); - } else { - product2a = INTERPOLATE(color2, color3); - } - - } else if (color5 == color3 && color2 == color6) { - register int r = 0; - - r += GetResult(color6, color5, color1, colorA1); - r += GetResult(color6, color5, color4, colorB1); - r += GetResult(color6, color5, colorA2, colorS1); - r += GetResult(color6, color5, colorB2, colorS2); - - if (r > 0) { - product1b = product2a = color2; - product1a = product2b = INTERPOLATE(color5, color6); - } else if (r < 0) { - product2b = product1a = color5; - product1b = product2a = INTERPOLATE(color5, color6); - } else { - product2b = product1a = color5; - product1b = product2a = color2; - } - } else { - product2b = product1a = INTERPOLATE(color2, color6); - product2b = Q_INTERPOLATE(color3, color3, color3, product2b); - product1a = Q_INTERPOLATE(color5, color5, color5, product1a); - - product2a = product1b = INTERPOLATE(color5, color3); - product2a = Q_INTERPOLATE(color2, color2, color2, product2a); - product1b = Q_INTERPOLATE(color6, color6, color6, product1b); - } - product1a = product1a | (product1b << 16); - product2a = product2a | (product2b << 16); - - *((uint32 *)dP) = product1a; - *((uint32 *)(dP + dstPitch)) = product2a; - - bP += inc_bP; - dP += sizeof(uint32); - } // end of for ( finish= width etc..) - - srcPtr += srcPitch; - dstPtr += dstPitch * 2; - deltaPtr += srcPitch; - } // endof: while (height--) - } -} - -void _2xSaI(uint8 *srcPtr, uint32 srcPitch, uint8 *deltaPtr, - uint8 *dstPtr, uint32 dstPitch, int width, int height) -{ - uint8 *dP; - uint16 *bP; - uint32 inc_bP; - - - { - inc_bP = 1; - - uint32 Nextline = srcPitch >> 1; - - while (height--) { - bP = (uint16 *)srcPtr; - dP = dstPtr; - - for (uint32 finish = width; finish; finish -= inc_bP) { - - register uint32 colorA, colorB; - uint32 colorC, colorD, - colorE, colorF, colorG, colorH, - colorI, colorJ, colorK, colorL, colorM, colorN, colorO, colorP; - uint32 product, product1, product2; - -//--------------------------------------- -// Map of the pixels: I|E F|J -// G|A B|K -// H|C D|L -// M|N O|P - colorI = *(bP - Nextline - 1); - colorE = *(bP - Nextline); - colorF = *(bP - Nextline + 1); - colorJ = *(bP - Nextline + 2); - - colorG = *(bP - 1); - colorA = *(bP); - colorB = *(bP + 1); - colorK = *(bP + 2); - - colorH = *(bP + Nextline - 1); - colorC = *(bP + Nextline); - colorD = *(bP + Nextline + 1); - colorL = *(bP + Nextline + 2); - - colorM = *(bP + Nextline + Nextline - 1); - colorN = *(bP + Nextline + Nextline); - colorO = *(bP + Nextline + Nextline + 1); - colorP = *(bP + Nextline + Nextline + 2); - - if ((colorA == colorD) && (colorB != colorC)) { - if (((colorA == colorE) && (colorB == colorL)) || - ((colorA == colorC) && (colorA == colorF) - && (colorB != colorE) && (colorB == colorJ))) { - product = colorA; - } else { - product = INTERPOLATE(colorA, colorB); - } - - if (((colorA == colorG) && (colorC == colorO)) || - ((colorA == colorB) && (colorA == colorH) - && (colorG != colorC) && (colorC == colorM))) { - product1 = colorA; - } else { - product1 = INTERPOLATE(colorA, colorC); - } - product2 = colorA; - } else if ((colorB == colorC) && (colorA != colorD)) { - if (((colorB == colorF) && (colorA == colorH)) || - ((colorB == colorE) && (colorB == colorD) - && (colorA != colorF) && (colorA == colorI))) { - product = colorB; - } else { - product = INTERPOLATE(colorA, colorB); - } - - if (((colorC == colorH) && (colorA == colorF)) || - ((colorC == colorG) && (colorC == colorD) - && (colorA != colorH) && (colorA == colorI))) { - product1 = colorC; - } else { - product1 = INTERPOLATE(colorA, colorC); - } - product2 = colorB; - } else if ((colorA == colorD) && (colorB == colorC)) { - if (colorA == colorB) { - product = colorA; - product1 = colorA; - product2 = colorA; - } else { - register int r = 0; - - product1 = INTERPOLATE(colorA, colorC); - product = INTERPOLATE(colorA, colorB); - - r += GetResult1(colorA, colorB, colorG, colorE, colorI); - r += GetResult2(colorB, colorA, colorK, colorF, colorJ); - r += GetResult2(colorB, colorA, colorH, colorN, colorM); - r += GetResult1(colorA, colorB, colorL, colorO, colorP); - - if (r > 0) - product2 = colorA; - else if (r < 0) - product2 = colorB; - else { - product2 = Q_INTERPOLATE(colorA, colorB, colorC, colorD); - } - } - } else { - product2 = Q_INTERPOLATE(colorA, colorB, colorC, colorD); - - if ((colorA == colorC) && (colorA == colorF) - && (colorB != colorE) && (colorB == colorJ)) { - product = colorA; - } else if ((colorB == colorE) && (colorB == colorD) - && (colorA != colorF) && (colorA == colorI)) { - product = colorB; - } else { - product = INTERPOLATE(colorA, colorB); - } - - if ((colorA == colorB) && (colorA == colorH) - && (colorG != colorC) && (colorC == colorM)) { - product1 = colorA; - } else if ((colorC == colorG) && (colorC == colorD) - && (colorA != colorH) && (colorA == colorI)) { - product1 = colorC; - } else { - product1 = INTERPOLATE(colorA, colorC); - } - } - - product = colorA | (product << 16); - product1 = product1 | (product2 << 16); - *((int32 *) dP) = product; - *((uint32 *)(dP + dstPitch)) = product1; - - bP += inc_bP; - dP += sizeof(uint32); - } // end of for ( finish= width etc..) - - srcPtr += srcPitch; - dstPtr += dstPitch * 2; - deltaPtr += srcPitch; - } // endof: while (height--) - } -} - -static uint32 Bilinear(uint32 A, uint32 B, uint32 x) -{ - unsigned long areaA, areaB; - unsigned long result; - - if (A == B) - return A; - - areaB = (x >> 11) & 0x1f; // reduce 16 bit fraction to 5 bits - areaA = 0x20 - areaB; - - A = (A & redblueMask) | ((A & greenMask) << 16); - B = (B & redblueMask) | ((B & greenMask) << 16); - - result = ((areaA * A) + (areaB * B)) >> 5; - - return (result & redblueMask) | ((result >> 16) & greenMask); - -} - -static uint32 Bilinear4(uint32 A, uint32 B, uint32 C, uint32 D, uint32 x, - uint32 y) -{ - unsigned long areaA, areaB, areaC, areaD; - unsigned long result, xy; - - x = (x >> 11) & 0x1f; - y = (y >> 11) & 0x1f; - xy = (x * y) >> 5; - - A = (A & redblueMask) | ((A & greenMask) << 16); - B = (B & redblueMask) | ((B & greenMask) << 16); - C = (C & redblueMask) | ((C & greenMask) << 16); - D = (D & redblueMask) | ((D & greenMask) << 16); - - areaA = 0x20 + xy - x - y; - areaB = x - xy; - areaC = y - xy; - areaD = xy; - - result = ((areaA * A) + (areaB * B) + (areaC * C) + (areaD * D)) >> 5; - - return (result & redblueMask) | ((result >> 16) & greenMask); -} - -void Scale_2xSaI(uint8 *srcPtr, uint32 srcPitch, uint8 * /* deltaPtr */ , - uint8 *dstPtr, uint32 dstPitch, - uint32 dstWidth, uint32 dstHeight, int width, int height) -{ - uint8 *dP; - uint16 *bP; - - uint32 w; - uint32 h; - uint32 dw; - uint32 dh; - uint32 hfinish; - uint32 wfinish; - - uint32 Nextline = srcPitch >> 1; - - wfinish = (width - 1) << 16; // convert to fixed point - dw = wfinish / (dstWidth - 1); - hfinish = (height - 1) << 16; // convert to fixed point - dh = hfinish / (dstHeight - 1); - - for (h = 0; h < hfinish; h += dh) { - uint32 y1, y2; - - y1 = h & 0xffff; // fraction part of fixed point - bP = (uint16 *)(srcPtr + ((h >> 16) * srcPitch)); - dP = dstPtr; - y2 = 0x10000 - y1; - - w = 0; - - for (; w < wfinish;) { - uint32 A, B, C, D; - uint32 E, F, G, H; - uint32 I, J, K, L; - uint32 x1, x2, a1, f1, f2; - uint32 position, product1; - - position = w >> 16; - A = bP[position]; // current pixel - B = bP[position + 1]; // next pixel - C = bP[position + Nextline]; - D = bP[position + Nextline + 1]; - E = bP[position - Nextline]; - F = bP[position - Nextline + 1]; - G = bP[position - 1]; - H = bP[position + Nextline - 1]; - I = bP[position + 2]; - J = bP[position + Nextline + 2]; - K = bP[position + Nextline + Nextline]; - L = bP[position + Nextline + Nextline + 1]; - - x1 = w & 0xffff; // fraction part of fixed point - x2 = 0x10000 - x1; - - /*0 */ - if (A == B && C == D && A == C) - product1 = A; - else - /*1 */ - if (A == D && B != C) { - f1 = (x1 >> 1) + (0x10000 >> 2); - f2 = (y1 >> 1) + (0x10000 >> 2); - if (y1 <= f1 && A == J && A != E) // close to B - { - a1 = f1 - y1; - product1 = Bilinear(A, B, a1); - } else if (y1 >= f1 && A == G && A != L) // close to C - { - a1 = y1 - f1; - product1 = Bilinear(A, C, a1); - } else if (x1 >= f2 && A == E && A != J) // close to B - { - a1 = x1 - f2; - product1 = Bilinear(A, B, a1); - } else if (x1 <= f2 && A == L && A != G) // close to C - { - a1 = f2 - x1; - product1 = Bilinear(A, C, a1); - } else if (y1 >= x1) // close to C - { - a1 = y1 - x1; - product1 = Bilinear(A, C, a1); - } else if (y1 <= x1) // close to B - { - a1 = x1 - y1; - product1 = Bilinear(A, B, a1); - } - } else - /*2 */ - if (B == C && A != D) { - f1 = (x1 >> 1) + (0x10000 >> 2); - f2 = (y1 >> 1) + (0x10000 >> 2); - if (y2 >= f1 && B == H && B != F) // close to A - { - a1 = y2 - f1; - product1 = Bilinear(B, A, a1); - } else if (y2 <= f1 && B == I && B != K) // close to D - { - a1 = f1 - y2; - product1 = Bilinear(B, D, a1); - } else if (x2 >= f2 && B == F && B != H) // close to A - { - a1 = x2 - f2; - product1 = Bilinear(B, A, a1); - } else if (x2 <= f2 && B == K && B != I) // close to D - { - a1 = f2 - x2; - product1 = Bilinear(B, D, a1); - } else if (y2 >= x1) // close to A - { - a1 = y2 - x1; - product1 = Bilinear(B, A, a1); - } else if (y2 <= x1) // close to D - { - a1 = x1 - y2; - product1 = Bilinear(B, D, a1); - } - } - /*3 */ - else { - product1 = Bilinear4(A, B, C, D, x1, y1); - } - -//end First Pixel - *(uint32 *)dP = product1; - dP += 2; - w += dw; - } - dstPtr += dstPitch; - } -} - - /********* ScummVM call back functions **********/ int OSystem::waitTick(int delta) { do { - updateScreen(scumm); + updateScreen(g_scumm); new_time = SDL_GetTicks(); - waitForTimer(scumm, delta * 15 + last_time - new_time); + waitForTimer(g_scumm, delta * 15 + last_time - new_time); last_time = SDL_GetTicks(); if (gui._active) { - gui.loop(scumm); + gui.loop(g_scumm); delta = 5; } } while (gui._active); |