| 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 | |