1 /***************************************************************************
2 * Copyright (C) 2010 PCSX4ALL Team *
3 * Copyright (C) 2010 Unai *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
19 ***************************************************************************/
21 ///////////////////////////////////////////////////////////////////////////////
22 // GPU internal sprite drawing functions
24 void gpuDrawS(PtrUnion packet, const PS gpuSpriteSpanDriver)
29 //NOTE: Must 11-bit sign-extend the whole sum here, not just packet X/Y,
30 // or sprites in 1st level of SkullMonkeys disappear when walking right.
31 // This now matches behavior of Mednafen and PCSX Rearmed's gpu_neon:
32 x0 = GPU_EXPANDSIGN(packet.S2[2] + gpu_unai.DrawingOffset[0]);
33 y0 = GPU_EXPANDSIGN(packet.S2[3] + gpu_unai.DrawingOffset[1]);
35 u32 w = packet.U2[6] & 0x3ff; // Max width is 1023
36 u32 h = packet.U2[7] & 0x1ff; // Max height is 511
40 s32 xmin, xmax, ymin, ymax;
41 xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2];
42 ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3];
49 if (temp > 0) { y0 = ymin; v0 += temp; }
50 if (y1 > ymax) y1 = ymax;
54 if (temp > 0) { x0 = xmin; u0 += temp; }
55 if (x1 > xmax) x1 = xmax;
59 gpu_unai.r5 = packet.U1[0] >> 3;
60 gpu_unai.g5 = packet.U1[1] >> 3;
61 gpu_unai.b5 = packet.U1[2] >> 3;
63 u16 *Pixel = &((u16*)gpu_unai.vram)[FRAME_OFFSET(x0, y0)];
64 const int li=gpu_unai.ilace_mask;
65 const int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0);
66 const int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1);
67 unsigned int tmode = gpu_unai.TEXT_MODE >> 5;
68 const u32 v0_mask = gpu_unai.TextureWindow[3];
69 u8* pTxt_base = (u8*)gpu_unai.TBA;
71 // Texture is accessed byte-wise, so adjust idx if 16bpp
72 if (tmode == 3) u0 <<= 1;
75 u8* pTxt = pTxt_base + ((v0 & v0_mask) * 2048);
76 if (!(y0&li) && (y0&pi)!=pif)
77 gpuSpriteSpanDriver(Pixel, x1, pTxt, u0);
86 /* Notaz 4bit sprites optimization */
87 void gpuDrawS16(PtrUnion packet)
95 //NOTE: Must 11-bit sign-extend the whole sum here, not just packet X/Y,
96 // or sprites in 1st level of SkullMonkeys disappear when walking right.
97 // This now matches behavior of Mednafen and PCSX Rearmed's gpu_neon:
98 x0 = GPU_EXPANDSIGN(packet.S2[2] + gpu_unai.DrawingOffset[0]);
99 y0 = GPU_EXPANDSIGN(packet.S2[3] + gpu_unai.DrawingOffset[1]);
101 xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2];
102 ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3];
106 if (x0 > xmax - 16 || x0 < xmin ||
107 ((u0 | v0) & 15) || !(gpu_unai.TextureWindow[2] & gpu_unai.TextureWindow[3] & 8)) {
108 // send corner cases to general handler
109 packet.U4[3] = 0x00100010;
110 gpuDrawS(packet, gpuSpriteSpanFn<0x20>);
114 if (y0 >= ymax || y0 <= ymin - 16)
121 else if (ymax - y0 < 16)
124 draw_spr16_full(&gpu_unai.vram[FRAME_OFFSET(x0, y0)], &gpu_unai.TBA[FRAME_OFFSET(u0/4, v0)], gpu_unai.CBA, h);
128 void gpuDrawT(PtrUnion packet, const PT gpuTileSpanDriver)
132 // This now matches behavior of Mednafen and PCSX Rearmed's gpu_neon:
133 x0 = GPU_EXPANDSIGN(packet.S2[2] + gpu_unai.DrawingOffset[0]);
134 y0 = GPU_EXPANDSIGN(packet.S2[3] + gpu_unai.DrawingOffset[1]);
136 u32 w = packet.U2[4] & 0x3ff; // Max width is 1023
137 u32 h = packet.U2[5] & 0x1ff; // Max height is 511
141 s32 xmin, xmax, ymin, ymax;
142 xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2];
143 ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3];
145 if (y0 < ymin) y0 = ymin;
146 if (y1 > ymax) y1 = ymax;
147 if (y1 <= y0) return;
149 if (x0 < xmin) x0 = xmin;
150 if (x1 > xmax) x1 = xmax;
154 const u16 Data = GPU_RGB16(packet.U4[0]);
155 u16 *Pixel = &((u16*)gpu_unai.vram)[FRAME_OFFSET(x0, y0)];
156 const int li=gpu_unai.ilace_mask;
157 const int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0);
158 const int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1);
160 for (; y0<y1; ++y0) {
161 if (!(y0&li) && (y0&pi)!=pif)
162 gpuTileSpanDriver(Pixel,x1,Data);
163 Pixel += FRAME_WIDTH;