mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2024-11-01 17:15:06 +01:00
318 lines
8.1 KiB
C
318 lines
8.1 KiB
C
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// Inspired by WiiPower's "video toy", but simpler
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#include "videopatch.h"
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#include <string.h>
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#define ARRAY_SIZE(a) (sizeof a / sizeof a[0])
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extern GXRModeObj TVNtsc480Int;
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GXRModeObj TVPal528Prog =
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{
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6, // viDisplayMode
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640, // fbWidth
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528, // efbHeight
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528, // xfbHeight
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(VI_MAX_WIDTH_PAL - 640)/2, // viXOrigin
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(VI_MAX_HEIGHT_PAL - 528)/2, // viYOrigin
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640, // viWidth
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528, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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GXRModeObj TVPal528ProgSoft =
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{
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6, // viDisplayMode
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640, // fbWidth
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528, // efbHeight
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528, // xfbHeight
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(VI_MAX_WIDTH_PAL - 640)/2, // viXOrigin
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(VI_MAX_HEIGHT_PAL - 528)/2, // viYOrigin
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640, // viWidth
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528, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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8, // line n-1
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8, // line n-1
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10, // line n
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12, // line n
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10, // line n
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8, // line n+1
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8 // line n+1
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}
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};
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GXRModeObj TVPal528ProgUnknown =
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{
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6, // viDisplayMode
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640, // fbWidth
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264, // efbHeight
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524, // xfbHeight
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(VI_MAX_WIDTH_PAL - 640)/2, // viXOrigin
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(VI_MAX_HEIGHT_PAL - 528)/2, // viYOrigin
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640, // viWidth
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524, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_TRUE, // aa
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// sample points arranged in increasing Y order
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{
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{3,2},{9,6},{3,10}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{3,2},{9,6},{3,10}, // pix 1
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{9,2},{3,6},{9,10}, // pix 2
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{9,2},{3,6},{9,10} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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4, // line n-1
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8, // line n-1
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12, // line n
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16, // line n
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12, // line n
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8, // line n+1
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4 // line n+1
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}
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};
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GXRModeObj TVMpal480Prog =
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{
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10, // viDisplayMode
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640, // fbWidth
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480, // efbHeight
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480, // xfbHeight
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(VI_MAX_WIDTH_NTSC - 640)/2, // viXOrigin
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(VI_MAX_HEIGHT_NTSC - 480)/2, // viYOrigin
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640, // viWidth
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480, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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static const GXRModeObj *g_vidmodes[] = {
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&TVNtsc480Int,
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&TVNtsc480IntDf,
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&TVNtsc480Prog,
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&TVPal528Int,
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&TVPal528IntDf,
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&TVPal528Prog,
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&TVPal528ProgSoft,
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&TVPal528ProgUnknown,
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&TVMpal480IntDf,
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&TVMpal480Prog,
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&TVEurgb60Hz480Int,
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&TVEurgb60Hz480IntDf,
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&TVEurgb60Hz480Prog
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};
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// Level :
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// 0 : If same number of lines and same mode type (interlaced, progressive)
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// 1 : If same mode type
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// 2 : Always
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static void applyVideoPatch(void *dst, u32 len, GXRModeObj *rmode, int level)
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{
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u32 i;
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u32 *bufEnd = (u32 *)((u8 *)dst + (len - sizeof *rmode));
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u32 *p = (u32 *)dst;
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while (p <= bufEnd)
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{
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for (i = 0; i < ARRAY_SIZE(g_vidmodes); ++i)
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if (memcmp(p, g_vidmodes[i], sizeof *rmode) == 0)
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{
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// Video mode description found, replace it
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GXRModeObj *m = (GXRModeObj *)p;
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if (level == 2
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|| (((m->viTVMode & 3) == VI_PROGRESSIVE) == ((rmode->viTVMode & 3) == VI_PROGRESSIVE)
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&& (level == 1 || m->viHeight == rmode->viHeight)))
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memcpy(p, rmode, sizeof *rmode);
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p = (u32 *)(m + 1);
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break;
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}
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if (i == ARRAY_SIZE(g_vidmodes))
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p++;
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}
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}
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static bool compare_videomodes(GXRModeObj* mode1, GXRModeObj* mode2)
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{
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return memcmp(mode1, mode2, sizeof *mode1) == 0; // padding seems to always be 0
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}
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static void patch_videomode(GXRModeObj* mode1, GXRModeObj* mode2)
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{
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memcpy(mode1, mode2, sizeof *mode1);
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}
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static GXRModeObj* PAL2NTSC[]={
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&TVMpal480IntDf, &TVNtsc480IntDf,
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&TVPal264Ds, &TVNtsc240Ds,
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&TVPal264DsAa, &TVNtsc240DsAa,
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&TVPal264Int, &TVNtsc240Int,
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&TVPal264IntAa, &TVNtsc240IntAa,
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&TVPal524IntAa, &TVNtsc480IntAa,
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&TVPal528Int, &TVNtsc480IntAa,
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&TVPal528IntDf, &TVNtsc480IntDf,
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&TVPal574IntDfScale, &TVNtsc480IntDf,
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&TVEurgb60Hz240Ds, &TVNtsc240Ds,
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&TVEurgb60Hz240DsAa, &TVNtsc240DsAa,
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&TVEurgb60Hz240Int, &TVNtsc240Int,
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&TVEurgb60Hz240IntAa, &TVNtsc240IntAa,
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&TVEurgb60Hz480Int, &TVNtsc480IntAa,
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&TVEurgb60Hz480IntDf, &TVNtsc480IntDf,
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&TVEurgb60Hz480IntAa, &TVNtsc480IntAa,
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&TVEurgb60Hz480Prog, &TVNtsc480Prog,
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&TVEurgb60Hz480ProgSoft,&TVNtsc480Prog,
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&TVEurgb60Hz480ProgAa, &TVNtsc480Prog,
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0,0
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};
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static GXRModeObj* NTSC2PAL[]={
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&TVNtsc240Ds, &TVPal264Ds,
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&TVNtsc240DsAa, &TVPal264DsAa,
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&TVNtsc240Int, &TVPal264Int,
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&TVNtsc240IntAa, &TVPal264IntAa,
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&TVNtsc480IntDf, &TVPal528IntDf,
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&TVNtsc480IntAa, &TVPal524IntAa,
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&TVNtsc480Prog, &TVPal528IntDf,
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0,0
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};
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static GXRModeObj* NTSC2PAL60[]={
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&TVNtsc240Ds, &TVEurgb60Hz240Ds,
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&TVNtsc240DsAa, &TVEurgb60Hz240DsAa,
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&TVNtsc240Int, &TVEurgb60Hz240Int,
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&TVNtsc240IntAa, &TVEurgb60Hz240IntAa,
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&TVNtsc480IntDf, &TVEurgb60Hz480IntDf,
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&TVNtsc480IntAa, &TVEurgb60Hz480IntAa,
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&TVNtsc480Prog, &TVEurgb60Hz480Prog,
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0,0
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};
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static bool Search_and_patch_Video_Modes(void *Address, u32 Size, GXRModeObj* Table[])
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{
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u8 *Addr = (u8 *)Address;
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bool found = 0;
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u32 i;
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while(Size >= sizeof(GXRModeObj))
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{
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for(i = 0; Table[i]; i+=2)
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{
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if(compare_videomodes(Table[i], (GXRModeObj*)Addr))
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{
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found = 1;
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patch_videomode((GXRModeObj*)Addr, Table[i+1]);
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Addr += (sizeof(GXRModeObj)-4);
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Size -= (sizeof(GXRModeObj)-4);
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break;
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}
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}
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Addr += 4;
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Size -= 4;
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}
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return found;
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}
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void patchVideoModes(void *dst, u32 len, int vidMode, GXRModeObj *vmode, int patchVidModes)
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{
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GXRModeObj **table = 0;
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if(patchVidModes && vmode != 0)
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applyVideoPatch(dst, len, vmode, patchVidModes - 1);
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else
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{
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switch(vidMode)
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{
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case 0: // default / disc / game
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break;
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case 1: // SYSTEM
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switch(CONF_GetVideo())
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{
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case CONF_VIDEO_PAL:
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table = CONF_GetEuRGB60() > 0 ? NTSC2PAL60 : NTSC2PAL;
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break;
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case CONF_VIDEO_MPAL:
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table = NTSC2PAL;
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break;
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default:
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table = PAL2NTSC;
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break;
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}
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Search_and_patch_Video_Modes(dst, len, table);
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break;
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case 2: // PAL50
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Search_and_patch_Video_Modes(dst, len, NTSC2PAL);
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break;
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case 3: // PAL60
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Search_and_patch_Video_Modes(dst, len, NTSC2PAL60);
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break;
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case 4: // NTSC
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Search_and_patch_Video_Modes(dst, len, PAL2NTSC);
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break;
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default:
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break;
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}
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}
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}
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