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Glide Plugin GLES2 port from mupen64plus-ae, but with special FrameSkip code
[mupen64plus-pandora.git] / source / gles2glide64 / src / Glide64 / TexLoad16b.h
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98e75f2d 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
40static 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
110static 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
169wxUint32 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
185wxUint32 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
200wxUint16 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
240wxUint32 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}
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