psx_gpu: fix a blending issue
[pcsx_rearmed.git] / plugins / gpu_unai / gpu_raster_sprite.h
CommitLineData
86aad47b 1/***************************************************************************
2* Copyright (C) 2010 PCSX4ALL Team *
3* Copyright (C) 2010 Unai *
4* *
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. *
9* *
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. *
14* *
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***************************************************************************/
20
21///////////////////////////////////////////////////////////////////////////////
22// GPU internal sprite drawing functions
23
24///////////////////////////////////////////////////////////////////////////////
25void gpuDrawS(const PS gpuSpriteSpanDriver)
26{
27 s32 x0, x1;
28 s32 y0, y1;
29 s32 u0;
30 s32 v0;
31
32 x1 = x0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[2]) + DrawingOffset[0];
33 y1 = y0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[3]) + DrawingOffset[1];
34 x1+= PacketBuffer.S2[6];
35 y1+= PacketBuffer.S2[7];
36
37 {
38 s32 xmin, xmax;
39 s32 ymin, ymax;
40 xmin = DrawingArea[0]; xmax = DrawingArea[2];
41 ymin = DrawingArea[1]; ymax = DrawingArea[3];
42
43 {
44 int rx0 = Max2(xmin,Min2(x0,x1));
45 int ry0 = Max2(ymin,Min2(y0,y1));
46 int rx1 = Min2(xmax,Max2(x0,x1));
47 int ry1 = Min2(ymax,Max2(y0,y1));
48 if( rx0>=rx1 || ry0>=ry1) return;
49 }
50
51 u0 = PacketBuffer.U1[8];
52 v0 = PacketBuffer.U1[9];
53
54 r4 = s32(PacketBuffer.U1[0]);
55 g4 = s32(PacketBuffer.U1[1]);
56 b4 = s32(PacketBuffer.U1[2]);
57
58 {
59 s32 temp;
60 temp = ymin - y0;
61 if (temp > 0) { y0 = ymin; v0 += temp; }
62 if (y1 > ymax) y1 = ymax;
63 if (y1 <= y0) return;
64
65 temp = xmin - x0;
66 if (temp > 0) { x0 = xmin; u0 += temp; }
67 if (x1 > xmax) x1 = xmax;
68 x1 -= x0;
69 if (x1 <= 0) return;
70 }
71 }
72
73 {
74 u16 *Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
75 const int li=linesInterlace;
76 const u32 masku=TextureWindow[2];
77 const u32 maskv=TextureWindow[3];
78
79 for (;y0<y1;++y0) {
80 if( 0 == (y0&li) ) gpuSpriteSpanDriver(Pixel,x1,FRAME_OFFSET(u0,v0),masku);
81 Pixel += FRAME_WIDTH;
82 v0 = (v0+1)&maskv;
83 }
84 }
85}
86
b3db9409 87#ifdef __arm__
88#include "gpu_arm.h"
89
90void gpuDrawS16(void)
91{
92 s32 x0, y0;
93 s32 u0, v0;
94 s32 xmin, xmax;
95 s32 ymin, ymax;
96 u32 h = 16;
97
98 x0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[2]) + DrawingOffset[0];
99 y0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[3]) + DrawingOffset[1];
100
101 xmin = DrawingArea[0]; xmax = DrawingArea[2];
102 ymin = DrawingArea[1]; ymax = DrawingArea[3];
103 u0 = PacketBuffer.U1[8];
104 v0 = PacketBuffer.U1[9];
105
106 if (x0 > xmax - 16 || x0 < xmin ||
107 ((u0 | v0) & 15) || !(TextureWindow[2] & TextureWindow[3] & 8)) {
108 // send corner cases to general handler
109 PacketBuffer.U4[3] = 0x00100010;
110 gpuDrawS(gpuSpriteSpanFn<0x20>);
111 return;
112 }
113
114 if (y0 >= ymax || y0 <= ymin - 16)
115 return;
116 if (y0 < ymin) {
117 h -= ymin - y0;
118 v0 += ymin - y0;
119 y0 = ymin;
120 }
121 else if (ymax - y0 < 16)
122 h = ymax - y0;
123
124 draw_spr16_full(&GPU_FrameBuffer[FRAME_OFFSET(x0, y0)], &TBA[FRAME_OFFSET(u0/4, v0)], CBA, h);
125}
126#endif // __arm__
127
86aad47b 128///////////////////////////////////////////////////////////////////////////////
129void gpuDrawT(const PT gpuTileSpanDriver)
130{
131 s32 x0, y0;
132 s32 x1, y1;
133
134 x1 = x0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[2]) + DrawingOffset[0];
135 y1 = y0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[3]) + DrawingOffset[1];
136 x1+= PacketBuffer.S2[4];
137 y1+= PacketBuffer.S2[5];
138
139 {
140 s32 xmin, xmax;
141 s32 ymin, ymax;
142 xmin = DrawingArea[0]; xmax = DrawingArea[2];
143 ymin = DrawingArea[1]; ymax = DrawingArea[3];
144
145 {
146 int rx0 = Max2(xmin,Min2(x0,x1));
147 int ry0 = Max2(ymin,Min2(y0,y1));
148 int rx1 = Min2(xmax,Max2(x0,x1));
149 int ry1 = Min2(ymax,Max2(y0,y1));
150 if(rx0>=rx1 || ry0>=ry1) return;
151 }
152
153 if (y0 < ymin) y0 = ymin;
154 if (y1 > ymax) y1 = ymax;
155 if (y1 <= y0) return;
156
157 if (x0 < xmin) x0 = xmin;
158 if (x1 > xmax) x1 = xmax;
159 x1 -= x0;
160 if (x1 <= 0) return;
161 }
162
163 {
164 u16 *Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
165 const u16 Data = GPU_RGB16(PacketBuffer.U4[0]);
166 const int li=linesInterlace;
167
168 for (; y0<y1; ++y0)
169 {
170 if( 0 == (y0&li) ) gpuTileSpanDriver(Pixel,x1,Data);
171 Pixel += FRAME_WIDTH;
172 }
173 }
174}