| 1 | /* |
| 2 | * Glide64 - Glide video plugin for Nintendo 64 emulators. |
| 3 | * Copyright (c) 2002 Dave2001 |
| 4 | * Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | //**************************************************************** |
| 22 | // |
| 23 | // Glide64 - Glide Plugin for Nintendo 64 emulators |
| 24 | // Project started on December 29th, 2001 |
| 25 | // |
| 26 | // Authors: |
| 27 | // Dave2001, original author, founded the project in 2001, left it in 2002 |
| 28 | // Gugaman, joined the project in 2002, left it in 2002 |
| 29 | // Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002 |
| 30 | // Hiroshi 'KoolSmoky' Morii, joined the project in 2007 |
| 31 | // |
| 32 | //**************************************************************** |
| 33 | // |
| 34 | // To modify Glide64: |
| 35 | // * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me. |
| 36 | // * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all. |
| 37 | // |
| 38 | //**************************************************************** |
| 39 | |
| 40 | static inline void load16bRGBA(uint8_t *src, uint8_t *dst, int wid_64, int height, int line, int ext) |
| 41 | { |
| 42 | uint32_t *v6; |
| 43 | uint32_t *v7; |
| 44 | int v8; |
| 45 | int v9; |
| 46 | uint32_t v10; |
| 47 | uint32_t v11; |
| 48 | uint32_t *v12; |
| 49 | uint32_t *v13; |
| 50 | int v14; |
| 51 | uint32_t v15; |
| 52 | uint32_t v16; |
| 53 | int v17; |
| 54 | int v18; |
| 55 | |
| 56 | v6 = (uint32_t *)src; |
| 57 | v7 = (uint32_t *)dst; |
| 58 | v8 = height; |
| 59 | do |
| 60 | { |
| 61 | v17 = v8; |
| 62 | v9 = wid_64; |
| 63 | do |
| 64 | { |
| 65 | v10 = bswap32(*v6); |
| 66 | v11 = bswap32(v6[1]); |
| 67 | ALOWORD(v10) = __ROR__((uint16_t)v10, 1); |
| 68 | ALOWORD(v11) = __ROR__((uint16_t)v11, 1); |
| 69 | v10 = __ROR__(v10, 16); |
| 70 | v11 = __ROR__(v11, 16); |
| 71 | ALOWORD(v10) = __ROR__((uint16_t)v10, 1); |
| 72 | ALOWORD(v11) = __ROR__((uint16_t)v11, 1); |
| 73 | *v7 = v10; |
| 74 | v7[1] = v11; |
| 75 | v6 += 2; |
| 76 | v7 += 2; |
| 77 | --v9; |
| 78 | } |
| 79 | while ( v9 ); |
| 80 | if ( v17 == 1 ) |
| 81 | break; |
| 82 | v18 = v17 - 1; |
| 83 | v12 = (uint32_t *)&src[(line + (uintptr_t)v6 - (uintptr_t)src) & 0xFFF]; |
| 84 | v13 = (uint32_t *)((char *)v7 + ext); |
| 85 | v14 = wid_64; |
| 86 | do |
| 87 | { |
| 88 | v15 = bswap32(v12[1]); |
| 89 | v16 = bswap32(*v12); |
| 90 | ALOWORD(v15) = __ROR__((uint16_t)v15, 1); |
| 91 | ALOWORD(v16) = __ROR__((uint16_t)v16, 1); |
| 92 | v15 = __ROR__(v15, 16); |
| 93 | v16 = __ROR__(v16, 16); |
| 94 | ALOWORD(v15) = __ROR__((uint16_t)v15, 1); |
| 95 | ALOWORD(v16) = __ROR__((uint16_t)v16, 1); |
| 96 | *v13 = v15; |
| 97 | v13[1] = v16; |
| 98 | v12 += 2; |
| 99 | v13 += 2; |
| 100 | --v14; |
| 101 | } |
| 102 | while ( v14 ); |
| 103 | v6 = (uint32_t *)&src[(line + (uintptr_t)v12 - (uintptr_t)src) & 0xFFF]; |
| 104 | v7 = (uint32_t *)((char *)v13 + ext); |
| 105 | v8 = v18 - 1; |
| 106 | } |
| 107 | while ( v18 != 1 ); |
| 108 | } |
| 109 | |
| 110 | static inline void load16bIA(uint8_t *src, uint8_t *dst, int wid_64, int height, int line, int ext) |
| 111 | { |
| 112 | uint32_t *v6; |
| 113 | uint32_t *v7; |
| 114 | int v8; |
| 115 | int v9; |
| 116 | uint32_t v10; |
| 117 | uint32_t *v11; |
| 118 | uint32_t *v12; |
| 119 | int v13; |
| 120 | uint32_t v14; |
| 121 | int v15; |
| 122 | int v16; |
| 123 | |
| 124 | v6 = (uint32_t *)src; |
| 125 | v7 = (uint32_t *)dst; |
| 126 | v8 = height; |
| 127 | do |
| 128 | { |
| 129 | v15 = v8; |
| 130 | v9 = wid_64; |
| 131 | do |
| 132 | { |
| 133 | v10 = v6[1]; |
| 134 | *v7 = *v6; |
| 135 | v7[1] = v10; |
| 136 | v6 += 2; |
| 137 | v7 += 2; |
| 138 | --v9; |
| 139 | } |
| 140 | while ( v9 ); |
| 141 | if ( v15 == 1 ) |
| 142 | break; |
| 143 | v16 = v15 - 1; |
| 144 | v11 = (uint32_t *)((char *)v6 + line); |
| 145 | v12 = (uint32_t *)((char *)v7 + ext); |
| 146 | v13 = wid_64; |
| 147 | do |
| 148 | { |
| 149 | v14 = *v11; |
| 150 | *v12 = v11[1]; |
| 151 | v12[1] = v14; |
| 152 | v11 += 2; |
| 153 | v12 += 2; |
| 154 | --v13; |
| 155 | } |
| 156 | while ( v13 ); |
| 157 | v6 = (uint32_t *)((char *)v11 + line); |
| 158 | v7 = (uint32_t *)((char *)v12 + ext); |
| 159 | v8 = v16 - 1; |
| 160 | } |
| 161 | while ( v16 != 1 ); |
| 162 | } |
| 163 | |
| 164 | |
| 165 | //**************************************************************** |
| 166 | // Size: 2, Format: 0 |
| 167 | // |
| 168 | |
| 169 | wxUint32 Load16bRGBA (wxUIntPtr dst, wxUIntPtr src, int wid_64, int height, int line, int real_width, int tile) |
| 170 | { |
| 171 | if (wid_64 < 1) wid_64 = 1; |
| 172 | if (height < 1) height = 1; |
| 173 | int ext = (real_width - (wid_64 << 2)) << 1; |
| 174 | |
| 175 | load16bRGBA((uint8_t *)src, (uint8_t *)dst, wid_64, height, line, ext); |
| 176 | |
| 177 | return (1 << 16) | GR_TEXFMT_ARGB_1555; |
| 178 | } |
| 179 | |
| 180 | //**************************************************************** |
| 181 | // Size: 2, Format: 3 |
| 182 | // |
| 183 | // ** by Gugaman/Dave2001 ** |
| 184 | |
| 185 | wxUint32 Load16bIA (wxUIntPtr dst, wxUIntPtr src, int wid_64, int height, int line, int real_width, int tile) |
| 186 | { |
| 187 | if (wid_64 < 1) wid_64 = 1; |
| 188 | if (height < 1) height = 1; |
| 189 | int ext = (real_width - (wid_64 << 2)) << 1; |
| 190 | |
| 191 | load16bIA((uint8_t *)src, (uint8_t *)dst, wid_64, height, line, ext); |
| 192 | |
| 193 | return (1 << 16) | GR_TEXFMT_ALPHA_INTENSITY_88; |
| 194 | } |
| 195 | |
| 196 | //**************************************************************** |
| 197 | // Size: 2, Format: 1 |
| 198 | // |
| 199 | |
| 200 | wxUint16 yuv_to_rgb565(wxUint8 y, wxUint8 u, wxUint8 v) |
| 201 | { |
| 202 | //* |
| 203 | float r = y + (1.370705f * (v-128)); |
| 204 | float g = y - (0.698001f * (v-128)) - (0.337633f * (u-128)); |
| 205 | float b = y + (1.732446f * (u-128)); |
| 206 | r *= 0.125f; |
| 207 | g *= 0.25f; |
| 208 | b *= 0.125f; |
| 209 | //clipping the result |
| 210 | if (r > 31) r = 31; |
| 211 | if (g > 63) g = 63; |
| 212 | if (b > 31) b = 31; |
| 213 | if (r < 0) r = 0; |
| 214 | if (g < 0) g = 0; |
| 215 | if (b < 0) b = 0; |
| 216 | wxUint16 c = (wxUint16)(((wxUint16)(r) << 11) | |
| 217 | ((wxUint16)(g) << 5) | |
| 218 | (wxUint16)(b) ); |
| 219 | return c; |
| 220 | //*/ |
| 221 | /* |
| 222 | const wxUint32 c = y - 16; |
| 223 | const wxUint32 d = u - 128; |
| 224 | const wxUint32 e = v - 128; |
| 225 | |
| 226 | wxUint32 r = (298 * c + 409 * e + 128) & 0xf800; |
| 227 | wxUint32 g = ((298 * c - 100 * d - 208 * e + 128) >> 5) & 0x7e0; |
| 228 | wxUint32 b = ((298 * c + 516 * d + 128) >> 11) & 0x1f; |
| 229 | |
| 230 | WORD texel = (WORD)(r | g | b); |
| 231 | |
| 232 | return texel; |
| 233 | */ |
| 234 | } |
| 235 | |
| 236 | //**************************************************************** |
| 237 | // Size: 2, Format: 1 |
| 238 | // |
| 239 | |
| 240 | wxUint32 Load16bYUV (wxUIntPtr dst, wxUIntPtr src, int wid_64, int height, int line, int real_width, int tile) |
| 241 | { |
| 242 | wxUint32 * mb = (wxUint32*)(gfx.RDRAM+rdp.addr[rdp.tiles[tile].t_mem]); //pointer to the macro block |
| 243 | wxUint16 * tex = (wxUint16*)dst; |
| 244 | wxUint16 i; |
| 245 | for (i = 0; i < 128; i++) |
| 246 | { |
| 247 | wxUint32 t = mb[i]; //each wxUint32 contains 2 pixels |
| 248 | wxUint8 y1 = (wxUint8)t&0xFF; |
| 249 | wxUint8 v = (wxUint8)(t>>8)&0xFF; |
| 250 | wxUint8 y0 = (wxUint8)(t>>16)&0xFF; |
| 251 | wxUint8 u = (wxUint8)(t>>24)&0xFF; |
| 252 | wxUint16 c = yuv_to_rgb565(y0, u, v); |
| 253 | *(tex++) = c; |
| 254 | c = yuv_to_rgb565(y1, u, v); |
| 255 | *(tex++) = c; |
| 256 | } |
| 257 | return (1 << 16) | GR_TEXFMT_RGB_565; |
| 258 | } |