667 lines
14 KiB
C++
667 lines
14 KiB
C++
/*
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** tileatlasvx.cpp
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2021 Amaryllis Kulla <amaryllis.kulla@protonmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "tileatlasvx.h"
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#include "tilemap-common.h"
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#include "bitmap.h"
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#include "table.h"
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#include "etc-internal.h"
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#include "gl-util.h"
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#include "gl-meta.h"
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#include "sharedstate.h"
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#include "glstate.h"
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#include "texpool.h"
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#include "util.h"
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#include <assert.h>
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#include <vector>
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/* Regular (A) autotile patterns */
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extern const StaticRect autotileVXRectsA[];
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extern const int autotileVXRectsAN;
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/* Table (A2) autotile patterns */
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extern const StaticRect autotileVXRectsA2[];
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extern const int autotileVXRectsA2N;
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extern const float autotileVXRectsA2Sizes[];
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/* Wall (B) autotile patterns */
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extern const StaticRect autotileVXRectsB[];
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extern const int autotileVXRectsBN;
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/* Waterfall (C) autotile patterns */
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static const StaticRect autotileVXRectsC[] =
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{
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{ 32.5f, 0.5f, 15.0f, 31.0f },
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{ 16.5f, 0.5f, 15.0f, 31.0f },
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{ 0.0f, 0.5f, 15.0f, 31.0f },
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{ 16.5f, 0.5f, 15.0f, 31.0f },
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{ 32.5f, 0.5f, 15.0f, 31.0f },
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{ 48.5f, 0.5f, 15.0f, 31.0f },
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{ 0.0f, 0.5f, 15.0f, 31.0f },
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{ 48.5f, 0.5f, 15.0f, 31.0f }
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};
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static elementsN(autotileVXRectsC);
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namespace TileAtlasVX
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{
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static int16_t
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tableGetSafe(const Table *t, int x)
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{
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if (!t)
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return 0;
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if (x < 0 || x >= t->xSize())
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return 0;
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return t->at(x);
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}
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/* All below constants are in tiles (= 32 pixels) */
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struct Size
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{
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int w, h;
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Size(int w, int h)
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: w(w), h(h)
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{}
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};
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static const Size bmSizes[BM_COUNT] =
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{
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Size(16, 12), /* A1 */
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Size(16, 12), /* A2 */
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Size(16, 8), /* A3 */
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Size(16, 15), /* A4 */
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Size( 8, 16), /* A5 */
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Size(16, 16), /* B */
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Size(16, 16), /* C */
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Size(16, 16), /* D */
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Size(16, 16), /* E */
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};
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static const Size atArea(16, 13);
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static const Vec2i freeArea(8, 48);
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static const Vec2i CDEArea(16, 0);
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struct Blit
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{
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IntRect src;
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Vec2i dst;
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Blit(int srcX, int srcY, int w, int h, int dstX, int dstY)
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: src(srcX, srcY, w, h),
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dst(dstX, dstY)
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{}
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Blit(int srcX, int srcY, const Size &size, int dstX, int dstY)
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: src(srcX, srcY, size.w, size.h),
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dst(dstX, dstY)
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{}
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};
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static const Blit blitsA1[] =
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{
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/* Animated A autotiles */
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Blit(0, 0, 6, 12, 0, 0),
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Blit(8, 0, 6, 12, 6, 0),
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/* Unanimated A autotiles */
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Blit(6, 0, 2, 6, freeArea.x, freeArea.y),
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/* C autotiles */
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Blit(14, 0, 2, 6, 12, 0),
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Blit(6, 6, 2, 6, 14, 0),
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Blit(14, 6, 2, 6, 12, 6)
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};
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static const Blit blitsA2[] =
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{
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Blit(0, 0, bmSizes[BM_A2], 0, atArea.h)
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};
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static const Blit blitsA3[] =
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{
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Blit(0, 0, bmSizes[BM_A3], 0, blitsA2[0].dst.y+blitsA2[0].src.h)
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};
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static const Blit blitsA4[] =
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{
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Blit(0, 0, bmSizes[BM_A4], 0, blitsA3[0].dst.y+blitsA3[0].src.h)
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};
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static const Blit blitsA5[] =
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{
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Blit(0, 0, bmSizes[BM_A5], 0, blitsA4[0].dst.y+blitsA4[0].src.h)
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};
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static const Blit blitsB[] =
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{
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Blit(0, 0, bmSizes[BM_B], atArea.w, 0)
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};
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static const Blit blitsC[] =
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{
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Blit(0, 0, bmSizes[BM_C], blitsA2[0].src.w, blitsB[0].dst.y+blitsB[0].src.h)
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};
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static const Blit blitsD[] =
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{
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Blit(0, 0, bmSizes[BM_D], blitsC[0].dst.x, blitsC[0].dst.y+blitsC[0].src.h)
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};
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static const Blit blitsE[] =
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{
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Blit(0, 0, bmSizes[BM_E], blitsD[0].dst.x, blitsD[0].dst.y+blitsD[0].src.h)
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};
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static elementsN(blitsA1);
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static elementsN(blitsA2);
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static elementsN(blitsA3);
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static elementsN(blitsA4);
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static elementsN(blitsA5);
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static elementsN(blitsB);
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static elementsN(blitsC);
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static elementsN(blitsD);
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static elementsN(blitsE);
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/* 'Waterfall' autotiles atlas origin */
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static const Vec2i AEPartsDst[] =
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{
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Vec2i(12, 0),
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Vec2i(12, 3),
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Vec2i(14, 0),
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Vec2i(14, 3),
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Vec2i(12, 6),
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Vec2i(12, 9)
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};
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static const Vec2i shadowArea(freeArea.x+2, freeArea.y);
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static SDL_Surface*
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createShadowSet()
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{
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int bpp;
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Uint32 rm, gm, bm, am;
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SDL_PixelFormatEnumToMasks(SDL_PIXELFORMAT_ABGR8888, &bpp, &rm, &gm, &bm, &am);
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SDL_Surface *surf = SDL_CreateRGBSurface(0, 1*32, 16*32, bpp, rm, gm, bm, am);
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std::vector<SDL_Rect> rects;
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SDL_Rect rect = { 0, 0, 16, 16 };
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for (int val = 0; val < 16; ++val)
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{
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int origY = val*32;
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/* Top left */
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if (val & (1 << 0))
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{
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rect.x = 0;
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rect.y = origY;
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rects.push_back(rect);
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}
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/* Top Right */
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if (val & (1 << 1))
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{
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rect.x = 16;
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rect.y = origY;
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rects.push_back(rect);
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}
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/* Bottom left */
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if (val & (1 << 2))
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{
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rect.x = 0;
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rect.y = origY+16;
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rects.push_back(rect);
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}
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/* Bottom right */
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if (val & (1 << 3))
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{
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rect.x = 16;
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rect.y = origY+16;
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rects.push_back(rect);
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}
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}
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/* Fill rects with half opacity black */
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uint32_t color = (0x80808080 & am);
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SDL_FillRects(surf, dataPtr(rects), rects.size(), color);
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return surf;
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}
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static void doBlit(Bitmap *bm, const IntRect &src, const Vec2i &dst)
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{
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/* Translate tile to pixel units */
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IntRect _src(src.x*32, src.y*32, src.w*32, src.h*32);
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Vec2i _dst(dst.x*32, dst.y*32);
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IntRect bmr(0, 0, bm->width(), bm->height());
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if (!SDL_IntersectRect(&_src, &bmr, &_src))
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return;
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GLMeta::blitRectangle(_src, _dst);
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}
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void build(TEXFBO &tf, Bitmap *bitmaps[BM_COUNT])
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{
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assert(tf.width == ATLASVX_W && tf.height == ATLASVX_H);
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GLMeta::blitBegin(tf);
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glState.clearColor.pushSet(Vec4());
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FBO::clear();
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glState.clearColor.pop();
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if (rgssVer >= 3)
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{
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SDL_Surface *shadow = createShadowSet();
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TEX::bind(tf.tex);
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TEX::uploadSubImage(shadowArea.x*32, shadowArea.y*32,
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shadow->w, shadow->h, shadow->pixels, GL_RGBA);
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SDL_FreeSurface(shadow);
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}
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Bitmap *bm;
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#define EXEC_BLITS(part) \
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if (!nullOrDisposed(bm = bitmaps[BM_##part])) \
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{ \
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GLMeta::blitSource(bm->getGLTypes()); \
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for (size_t i = 0; i < blits##part##N; ++i) \
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{\
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const IntRect &src = blits##part[i].src; \
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const Vec2i &dst = blits##part[i].dst; \
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doBlit(bm, src, dst); \
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} \
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}
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EXEC_BLITS(A1);
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EXEC_BLITS(A2);
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EXEC_BLITS(A3);
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EXEC_BLITS(A4);
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EXEC_BLITS(A5);
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EXEC_BLITS(B);
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EXEC_BLITS(C);
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EXEC_BLITS(D);
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EXEC_BLITS(E);
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#undef EXEC_BLITS
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GLMeta::blitEnd();
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}
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#define OVER_PLAYER_FLAG (1 << 4)
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#define TABLE_FLAG (1 << 7)
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/* Reference: http://www.tktkgame.com/tkool/memo/vx/tile_id.html */
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static void
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readAutotile(Reader &reader, int patternID,
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const Vec2i &orig, int x, int y,
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const StaticRect rectSource[], int rectSourceN)
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{
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FloatRect tex[4], pos[4];
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(void) rectSourceN;
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for (int i = 0; i < 4; ++i)
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{
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assert((patternID*4 + i) < rectSourceN);
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tex[i] = FloatRect(rectSource[patternID*4 + i]);
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tex[i].x += orig.x*32;
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tex[i].y += orig.y*32;
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pos[i] = FloatRect(x*32, y*32, 16, 16);
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atSelectSubPos(pos[i], i);
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}
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reader.onQuads(tex, pos, 4, false);
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}
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static void
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readAutotileA(Reader &reader, int patternID,
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const Vec2i &orig, int x, int y)
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{
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readAutotile(reader, patternID, orig, x, y,
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autotileVXRectsA, autotileVXRectsAN);
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}
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static void
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readAutotileA2(Reader &reader, int patternID,
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const Vec2i &orig, int x, int y)
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{
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FloatRect tex[6], pos[6];
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for (int i = 0; i < 6; ++i)
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{
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assert((patternID*6 + i) < autotileVXRectsA2N);
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tex[i] = FloatRect(autotileVXRectsA2[patternID*6 + i]);
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tex[i].x += orig.x*32;
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tex[i].y += orig.y*32;
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float size = autotileVXRectsA2Sizes[patternID*6 + i];
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pos[i] = FloatRect(x*32, y*32, size, size);
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atSelectSubPos(pos[i], i);
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}
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reader.onQuads(tex, pos, 6, false);
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}
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static void
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readAutotileB(Reader &reader, int patternID,
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const Vec2i &orig, int x, int y)
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{
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if (patternID >= 0x10)
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return;
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readAutotile(reader, patternID, orig, x, y,
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autotileVXRectsB, autotileVXRectsBN);
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}
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static void
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readAutotileC(Reader &reader, int patternID,
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const Vec2i &orig, int x, int y)
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{
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if (patternID > 0x3)
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return;
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FloatRect tex[2], pos[2];
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for (size_t i = 0; i < 2; ++i)
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{
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tex[i] = autotileVXRectsC[patternID*2+i];
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tex[i].x += orig.x*32;
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tex[i].y += orig.y*32;
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pos[i] = FloatRect(x*32, y*32, 16, 32);
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pos[i].x += i*16;
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}
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reader.onQuads(tex, pos, 2, false);
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}
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static void
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onTileA1(Reader &reader, int16_t tileID,
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const int x, const int y)
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{
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tileID -= 0x0800;
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int patternID = tileID % 0x30;
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int autotileID = tileID / 0x30;
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const Vec2i autotileC(-1, -1);
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const Vec2i atOrig[] =
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{
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Vec2i(0, 0),
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Vec2i(0, 3),
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Vec2i(freeArea),
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Vec2i(freeArea.x, freeArea.y+3),
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Vec2i(6, 0),
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autotileC,
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Vec2i(6, 3),
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autotileC,
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Vec2i(0, 6),
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autotileC,
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Vec2i(0, 9),
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autotileC,
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Vec2i(6, 6),
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autotileC,
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Vec2i(6, 9),
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autotileC
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};
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const Vec2i orig = atOrig[autotileID];
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if (orig.x == -1)
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{
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int cID = (autotileID - 5) / 2;
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const Vec2i orig = AEPartsDst[cID];
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readAutotileC(reader, patternID, orig, x, y);
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return;
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}
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readAutotileA(reader, patternID, orig, x, y);
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}
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static void
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onTileA2(Reader &reader, int16_t tileID,
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int x, int y, bool isTable)
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{
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Vec2i orig = blitsA2[0].dst;
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tileID -= 0x0B00;
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int patternID = tileID % 0x30;
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int autotileID = tileID / 0x30;
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orig.x += (autotileID % 8) * 2;
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orig.y += (autotileID / 8) * 3;
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/* The table autotile handling isn't 100% accurate;
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* for that, we'd need to prerender layer 1 into a separate
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* temp texture with blending turned off and render that
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* to the screen. But in 99% of cases it shouldn't matter */
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if (isTable)
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readAutotileA2(reader, patternID, orig, x, y);
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else
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readAutotileA(reader, patternID, orig, x, y);
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}
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static void
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onTileA3(Reader &reader, int16_t tileID,
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int x, int y)
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{
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Vec2i orig = blitsA3[0].dst;
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tileID -= 0x1100;
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int patternID = tileID % 0x30;
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int autotileID = tileID / 0x30;
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orig.x += (autotileID % 8) * 2;
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orig.y += (autotileID / 8) * 2;
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readAutotileB(reader, patternID, orig, x, y);
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}
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static void
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onTileA4(Reader &reader, int16_t tileID,
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int x, int y)
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{
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Vec2i orig = blitsA4[0].dst;
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tileID -= 0x1700;
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static const int offY[] = { 0, 3, 5, 8, 10, 13 };
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int patternID = tileID % 0x30;
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int autotileID = tileID / 0x30;
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int offYI = autotileID / 8;
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orig.x += (autotileID % 8) * 2;
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orig.y += offY[offYI];
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if ((offYI % 2) == 0)
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readAutotileA(reader, patternID, orig, x, y);
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else
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readAutotileB(reader, patternID, orig, x, y);
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}
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static void
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onTileA5(Reader &reader, int16_t tileID,
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int x, int y, bool overPlayer)
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{
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const Vec2i orig = blitsA5[0].dst;
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tileID -= 0x0600;
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int ox = tileID % 0x8;
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int oy = tileID / 0x8;
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FloatRect tex((orig.x+ox)*32+0.5, (orig.y+oy)*32+0.5, 31, 31);
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FloatRect pos(x*32, y*32, 32, 32);
|
|
|
|
reader.onQuads(&tex, &pos, 1, overPlayer);
|
|
}
|
|
|
|
static void
|
|
onTileBCDE(Reader &reader, int16_t tileID,
|
|
int x, int y, bool overPlayer)
|
|
{
|
|
int ox = tileID % 0x8;
|
|
int oy = (tileID / 0x8) % 0x10;
|
|
int ob = tileID / (0x8*0x10);
|
|
|
|
ox += (ob % 2) * 0x8;
|
|
oy += (ob / 2) * 0x10;
|
|
|
|
FloatRect tex((CDEArea.x+ox)*32+0.5, (CDEArea.y+oy)*32+0.5, 31, 31);
|
|
FloatRect pos(x*32, y*32, 32, 32);
|
|
|
|
reader.onQuads(&tex, &pos, 1, overPlayer);
|
|
}
|
|
|
|
static void
|
|
onTile(Reader &reader, int16_t tileID,
|
|
int x, int y, const Table *flags)
|
|
{
|
|
int16_t flag = tableGetSafe(flags, tileID);
|
|
bool overPlayer = flag & OVER_PLAYER_FLAG;
|
|
bool isTable;
|
|
|
|
if (rgssVer >= 3)
|
|
isTable = flag & TABLE_FLAG;
|
|
else
|
|
isTable = (tileID - 0x0B00) % (8 * 0x30) >= (7 * 0x30);
|
|
|
|
/* B ~ E */
|
|
if (tileID < 0x0400)
|
|
{
|
|
onTileBCDE(reader, tileID, x, y, overPlayer);
|
|
return;
|
|
}
|
|
|
|
/* A5 */
|
|
if (tileID >= 0x0600 && tileID < 0x0680)
|
|
{
|
|
onTileA5(reader, tileID, x, y, overPlayer);
|
|
return;
|
|
}
|
|
|
|
if (tileID >= 0x0800 && tileID < 0x0B00)
|
|
{
|
|
onTileA1(reader, tileID, x, y);
|
|
return;
|
|
}
|
|
|
|
/* A2 */
|
|
if (tileID >= 0x0B00 && tileID < 0x1100)
|
|
{
|
|
onTileA2(reader, tileID, x, y, isTable);
|
|
return;
|
|
}
|
|
|
|
/* A3 */
|
|
if (tileID < 0x1700)
|
|
{
|
|
onTileA3(reader, tileID, x, y);
|
|
return;
|
|
}
|
|
|
|
/* A4 */
|
|
if (tileID < 0x2000)
|
|
{
|
|
onTileA4(reader, tileID, x, y);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
readLayer(Reader &reader, const Table &data,
|
|
const Table *flags, int ox, int oy, int w, int h, int z)
|
|
{
|
|
/* The table autotile pattern (A2) has two quads (table
|
|
* legs, etc.) which extend over the tile below. We process
|
|
* the tiles in rows from bottom to top so the table extents
|
|
* are added after the tile below and drawn over it. */
|
|
|
|
for (int y = h-1; y >= 0; --y)
|
|
for (int x = 0; x < w; ++x)
|
|
{
|
|
int16_t tileID = tableGetWrapped(data, x+ox, y+oy, z);
|
|
|
|
if (tileID <= 0)
|
|
continue;
|
|
|
|
onTile(reader, tileID, x, y, flags);
|
|
}
|
|
}
|
|
|
|
static void
|
|
onShadowTile(Reader &reader, int8_t value,
|
|
int x, int y)
|
|
{
|
|
if (value == 0)
|
|
return;
|
|
|
|
int oy = value;
|
|
|
|
FloatRect tex((shadowArea.x)*32+0.5, (shadowArea.y+oy)*32+0.5, 31, 31);
|
|
FloatRect pos(x*32, y*32, 32, 32);
|
|
|
|
reader.onQuads(&tex, &pos, 1, false);
|
|
}
|
|
|
|
static void
|
|
readShadowLayer(Reader &reader, const Table &data,
|
|
int ox, int oy, int w, int h)
|
|
{
|
|
for (int y = 0; y < h; ++y)
|
|
for (int x = 0; x < w; ++x)
|
|
{
|
|
int16_t value = tableGetWrapped(data, x+ox, y+oy, 3);
|
|
onShadowTile(reader, value & 0xF, x, y);
|
|
}
|
|
}
|
|
|
|
void readTiles(Reader &reader, const Table &data,
|
|
const Table *flags, int ox, int oy, int w, int h)
|
|
{
|
|
for (int i = 0; i < 2; ++i)
|
|
readLayer(reader, data, flags, ox, oy, w, h, i);
|
|
|
|
if (rgssVer >= 3)
|
|
readShadowLayer(reader, data, ox, oy, w, h);
|
|
|
|
readLayer(reader, data, flags, ox, oy, w, h, 2);
|
|
}
|
|
|
|
}
|