diff options
Diffstat (limited to 'graphics/animation.cpp')
| -rw-r--r-- | graphics/animation.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/graphics/animation.cpp b/graphics/animation.cpp index 44d0d854eb..65aca29b00 100644 --- a/graphics/animation.cpp +++ b/graphics/animation.cpp @@ -21,3 +21,160 @@ #include "common/stdafx.h" #include "graphics/animation.h" +#include "common/file.h" +#include "sound/audiostream.h" + +namespace Graphics { + +BaseAnimationState::BaseAnimationState(SoundMixer *snd, OSystem *sys, int width, int height) + : _snd(snd), _sys(sys), MOVIE_WIDTH(width), MOVIE_HEIGHT(height) { +} + +BaseAnimationState::~BaseAnimationState() { +#ifdef USE_MPEG2 + _snd->stopHandle(bgSound); + if (decoder) + mpeg2_close(decoder); + delete mpgfile; + delete sndfile; +#ifndef BACKEND_8BIT + _sys->hide_overlay(); + free(overlay); +#endif + if (bgSoundStream) + delete bgSoundStream; +#endif +} + + + +#ifdef BACKEND_8BIT + +/** + * Build 'Best-Match' RGB lookup table + */ +void BaseAnimationState::buildLookup(int p, int lines) { + int y, cb; + int r, g, b, ii; + + if (p >= maxPalnum) + return; + + if (p != curpal) { + curpal = p; + cr = 0; + pos = 0; + } + + if (cr > BITDEPTH) + return; + + for (ii = 0; ii < lines; ii++) { + r = (-16 * 256 + (int) (256 * 1.596) * ((cr << SHIFT) - 128)) / 256; + for (cb = 0; cb <= BITDEPTH; cb++) { + g = (-16 * 256 - (int) (0.813 * 256) * ((cr << SHIFT) - 128) - (int) (0.391 * 256) * ((cb << SHIFT) - 128)) / 256; + b = (-16 * 256 + (int) (2.018 * 256) * ((cb << SHIFT) - 128)) / 256; + + for (y = 0; y <= BITDEPTH; y++) { + int idx, bst = 0; + int dis = 2 * SQR(r - palettes[p].pal[0]) + 4 * SQR(g - palettes[p].pal[1]) + SQR(b - palettes[p].pal[2]); + + for (idx = 1; idx < 256; idx++) { + long d2 = 2 * SQR(r - palettes[p].pal[4 * idx]) + 4 * SQR(g - palettes[p].pal[4 * idx + 1]) + SQR(b - palettes[p].pal[4 * idx + 2]); + if (d2 < dis) { + bst = idx; + dis = d2; + } + } + lut2[pos++] = bst; + + r += (1 << SHIFT); + g += (1 << SHIFT); + b += (1 << SHIFT); + } + r -= (BITDEPTH+1)*(1 << SHIFT); + } + cr++; + if (cr > BITDEPTH) + return; + } +} + +bool BaseAnimationState::checkPaletteSwitch() { + // if we have reached the last image with this palette, switch to new one + if (framenum == palettes[palnum].end) { + unsigned char *l = lut2; + palnum++; + setPalette(palettes[palnum].pal); + lutcalcnum = (BITDEPTH + palettes[palnum].end - (framenum + 1) + 2) / (palettes[palnum].end - (framenum + 1) + 2); + lut2 = lut; + lut = l; + return true; + } + + return false; +} + +#else + +OverlayColor *BaseAnimationState::lookup = 0; + +void BaseAnimationState::buildLookup() { + if (lookup) + return; + + lookup = (OverlayColor *)calloc((BITDEPTH+1) * (BITDEPTH+1) * 256, sizeof(OverlayColor)); + + int y, cb, cr; + int r, g, b; + int pos = 0; + + for (cr = 0; cr <= BITDEPTH; cr++) { + for (cb = 0; cb <= BITDEPTH; cb++) { + for (y = 0; y < 256; y++) { + r = ((y - 16) * 256 + (int) (256 * 1.596) * ((cr << SHIFT) - 128)) / 256; + g = ((y - 16) * 256 - (int) (0.813 * 256) * ((cr << SHIFT) - 128) - (int) (0.391 * 256) * ((cb << SHIFT) - 128)) / 256; + b = ((y - 16) * 256 + (int) (2.018 * 256) * ((cb << SHIFT) - 128)) / 256; + + if (r < 0) r = 0; + else if (r > 255) r = 255; + if (g < 0) g = 0; + else if (g > 255) g = 255; + if (b < 0) b = 0; + else if (b > 255) b = 255; + + lookup[pos++] = _sys->RGBToColor(r, g, b); + } + } + } +} + +void BaseAnimationState::plotYUV(OverlayColor *lut, int width, int height, byte *const *dat) { + + OverlayColor *ptr = overlay + (MOVIE_HEIGHT - height) / 2 * MOVIE_WIDTH + (MOVIE_WIDTH - width) / 2; + + int x, y; + + int ypos = 0; + int cpos = 0; + int linepos = 0; + + for (y = 0; y < height; y += 2) { + for (x = 0; x < width; x += 2) { + int i = ((((dat[2][cpos] + ROUNDADD) >> SHIFT) * (BITDEPTH+1)) + ((dat[1][cpos] + ROUNDADD)>>SHIFT)) * 256; + cpos++; + + ptr[linepos ] = lut[i + dat[0][ ypos ]]; + ptr[MOVIE_WIDTH + linepos++] = lut[i + dat[0][width + ypos++]]; + ptr[linepos ] = lut[i + dat[0][ ypos ]]; + ptr[MOVIE_WIDTH + linepos++] = lut[i + dat[0][width + ypos++]]; + + } + linepos += (2 * MOVIE_WIDTH - width); + ypos += width; + } +} + +#endif + +} // End of namespace Graphics |