34cf4058 |
1 | #include "Common.h" |
2 | #include "gles2N64.h" |
3 | #include "Types.h" |
4 | #include "VI.h" |
5 | #include "OpenGL.h" |
6 | #include "N64.h" |
7 | #include "gSP.h" |
8 | #include "gDP.h" |
9 | #include "RSP.h" |
10 | #include "Debug.h" |
11 | #include "Config.h" |
12 | |
13 | VIInfo VI; |
14 | |
15 | void VI_UpdateSize() |
16 | { |
17 | |
18 | if (!config.video.force) |
19 | { |
20 | f32 xScale = _FIXED2FLOAT( _SHIFTR( *REG.VI_X_SCALE, 0, 12 ), 10 ); |
21 | f32 xOffset = _FIXED2FLOAT( _SHIFTR( *REG.VI_X_SCALE, 16, 12 ), 10 ); |
22 | |
23 | f32 yScale = _FIXED2FLOAT( _SHIFTR( *REG.VI_Y_SCALE, 0, 12 ), 10 ); |
24 | f32 yOffset = _FIXED2FLOAT( _SHIFTR( *REG.VI_Y_SCALE, 16, 12 ), 10 ); |
25 | |
26 | u32 hEnd = _SHIFTR( *REG.VI_H_START, 0, 10 ); |
27 | u32 hStart = _SHIFTR( *REG.VI_H_START, 16, 10 ); |
28 | |
29 | // These are in half-lines, so shift an extra bit |
30 | u32 vEnd = _SHIFTR( *REG.VI_V_START, 1, 9 ); |
31 | u32 vStart = _SHIFTR( *REG.VI_V_START, 17, 9 ); |
32 | |
33 | //Glide does this: |
34 | if (hEnd == hStart) hEnd = (u32)(*REG.VI_WIDTH / xScale); |
35 | |
36 | |
37 | VI.width = (hEnd - hStart) * xScale; |
38 | VI.height = (vEnd - vStart) * yScale * 1.0126582f; |
39 | } |
40 | else |
41 | { |
42 | VI.width = config.video.width; |
43 | VI.height = config.video.height; |
44 | } |
45 | |
46 | if (VI.width == 0.0f) VI.width = 320.0f; |
47 | if (VI.height == 0.0f) VI.height = 240.0f; |
48 | VI.rwidth = 1.0f / VI.width; |
49 | VI.rheight = 1.0f / VI.height; |
50 | |
51 | |
52 | //add display buffer if doesn't exist |
53 | if (config.ignoreOffscreenRendering) |
54 | { |
55 | int i; |
56 | //int start = *REG.VI_ORIGIN; |
57 | u32 start = RSP_SegmentToPhysical(*REG.VI_ORIGIN) & 0x00FFFFFF; |
58 | u32 end = min(start + VI.width * VI.height * 4, RDRAMSize); |
59 | for(i = 0; i < VI.displayNum; i++) |
60 | { |
61 | if (VI.display[i].start <= end && VI.display[i].start >= start) break; |
62 | if (start <= VI.display[i].end && start >= VI.display[i].start) break; |
63 | } |
64 | if (i == VI.displayNum) |
65 | { |
66 | //printf("VI IMAGE=%i\n", o); |
67 | VI.display[i%16].start = start; |
68 | VI.display[i%16].end = end; |
69 | VI.displayNum = (VI.displayNum < 16) ? (VI.displayNum+1) : 16; |
70 | } |
71 | } |
72 | |
73 | } |
74 | |
75 | void VI_UpdateScreen() |
76 | { |
77 | |
78 | switch(config.updateMode) |
79 | { |
80 | |
81 | case SCREEN_UPDATE_AT_VI_CHANGE: |
82 | if (*REG.VI_ORIGIN != VI.lastOrigin) |
83 | { |
84 | if (*REG.VI_ORIGIN < VI.lastOrigin || *REG.VI_ORIGIN > VI.lastOrigin+0x2000 ) |
85 | OGL_SwapBuffers(); |
86 | |
87 | VI.lastOrigin = *REG.VI_ORIGIN; |
88 | } |
89 | break; |
90 | |
91 | case SCREEN_UPDATE_AT_VI_UPDATE: |
92 | if (gSP.changed & CHANGED_COLORBUFFER) |
93 | { |
94 | OGL_SwapBuffers(); |
95 | gSP.changed &= ~CHANGED_COLORBUFFER; |
96 | } |
97 | break; |
98 | } |
99 | |
100 | } |
101 | |