/**************************************************************************** * Snes9x 1.50 * * Nintendo Gamecube Screen Font Driver * * Uses libfreetype 2.2.1 compiled for GC with TTF support only. * TTF only reduces the library by some 900k bytes! * * Visit - http://www.freetype.org ! * * **WARNING*** * * ONLY USE GUARANTEED PATENT FREE FONTS. * THOSE IN YOUR WINDOWS\FONTS DIRECTORY ARE COPYRIGHT * AND MAY NOT BE DISTRIBUTED! * * softdev July 2006 * crunchy2 June 2007 ****************************************************************************/ #include #include #include #include #include #include #include #include #include FT_FREETYPE_H #include "video.h" #include "menudraw.h" #include "dkpro.h" #include "snes9xGX.h" #include "memmap.h" #include "aram.h" #include #include "gfx_bg.h" /*** Globals ***/ FT_Library ftlibrary; FT_Face face; FT_GlyphSlot slot; FT_UInt glyph_index; static unsigned int fonthi, fontlo; extern char fontface[]; /*** From fontface.s ***/ extern int fontsize; /*** From fontface.s ***/ extern int screenheight; extern unsigned int *xfb[2]; extern int whichfb; /**************************************************************************** * Unpack the devkit pro logo ****************************************************************************/ static u32 *dkproraw; /*** Permanent backdrop ***/ #ifdef HW_RVL u32 *backdrop; #else static u32 *backdrop; #endif unsigned int getcolour (u8 r1, u8 g1, u8 b1); void DrawLineFast( int startx, int endx, int y, u8 r, u8 g, u8 b ); u32 getrgb( u32 ycbr, u32 low ); /**************************************************************************** * Initialisation of libfreetype ****************************************************************************/ int FT_Init () { int err; err = FT_Init_FreeType (&ftlibrary); if (err) return 1; err = FT_New_Memory_Face (ftlibrary, (FT_Byte *) fontface, fontsize, 0, &face); if (err) return 1; setfontsize (16); setfontcolour (0xff, 0xff, 0xff); slot = face->glyph; return 0; } /**************************************************************************** * setfontsize * * Set the screen font size in pixels ****************************************************************************/ void setfontsize (int pixelsize) { int err; err = FT_Set_Pixel_Sizes (face, 0, pixelsize); if (err) printf ("Error setting pixel sizes!"); } /**************************************************************************** * DrawCharacter * Draws a single character on the screen ****************************************************************************/ static void DrawCharacter (FT_Bitmap * bmp, FT_Int x, FT_Int y) { FT_Int i, j, p, q; FT_Int x_max = x + bmp->width; FT_Int y_max = y + bmp->rows; int spos; unsigned int pixel; int c; for (i = x, p = 0; i < x_max; i++, p++) { for (j = y, q = 0; j < y_max; j++, q++) { if (i < 0 || j < 0 || i >= 640 || j >= screenheight) continue; /*** Convert pixel position to GC int sizes ***/ spos = (j * 320) + (i >> 1); pixel = xfb[whichfb][spos]; c = bmp->buffer[q * bmp->width + p]; /*** Cool Anti-Aliasing doesn't work too well at hires on GC ***/ if (c > 128) { if (i & 1) pixel = (pixel & 0xffff0000) | fontlo; else pixel = ((pixel & 0xffff) | fonthi); xfb[whichfb][spos] = pixel; } } } } /**************************************************************************** * DrawText * * Place the font bitmap on the screen ****************************************************************************/ void DrawText (int x, int y, char *text) { int px, n; int i; int err; int value, count; n = strlen (text); if (n == 0) return; setfontcolour (0x00, 0x00, 0x00); /*** x == -1, auto centre ***/ if (x == -1) { value = 0; px = 0; } else { value = 1; px = x; } for (count = value; count < 2; count++) { /*** Draw the string ***/ for (i = 0; i < n; i++) { err = FT_Load_Char (face, text[i], FT_LOAD_RENDER); if (err) { printf ("Error %c %d\n", text[i], err); continue; /*** Skip unprintable characters ***/ } if (count) DrawCharacter (&slot->bitmap, px + slot->bitmap_left, y - slot->bitmap_top); px += slot->advance.x >> 6; } px = (640 - px) >> 1; } } /**************************************************************************** * setfontcolour * * Uses RGB triple values. ****************************************************************************/ void setfontcolour (u8 r, u8 g, u8 b) { u32 fontcolour; fontcolour = getcolour (r, g, b); fonthi = fontcolour & 0xffff0000; fontlo = fontcolour & 0xffff; } /**************************************************************************** * dkunpack * * Support function to expand the DevkitPro logo ****************************************************************************/ int dkunpack () { unsigned long res, inbytes, outbytes; inbytes = dkpro_COMPRESSED; outbytes = dkpro_RAW; dkproraw = (u32 *) malloc (dkpro_RAW + 16); res = uncompress ((Bytef *) dkproraw, &outbytes, (Bytef *) dkpro, inbytes); if (res == Z_OK) return 1; return 0; } /**************************************************************************** * showdklogo * * Display the DevkitPro logo ****************************************************************************/ void showdklogo () { int w, h, p, dispoffset; p = 0; dispoffset = ((screenheight != 480 ? 365 : 355) * 320) + ((640 - dkpro_WIDTH) >> 2); dkunpack (); for (h = 0; h < dkpro_HEIGHT; h++) { for (w = 0; w < dkpro_WIDTH >> 1; w++) { if (dkproraw[p] != 0x00800080) xfb[whichfb][dispoffset + w] = dkproraw[p++]; else p++; } dispoffset += 320; } free (dkproraw); } /**************************************************************************** * Display credits, legal copyright and licence * * THIS MUST NOT BE REMOVED IN ANY DERIVATIVE WORK. ****************************************************************************/ void Credits () { clearscreen (); setfontcolour (0x00, 0x00, 0x00); setfontsize (28); DrawText (-1, 60, (char*)"Credits"); int ypos = 25; if (screenheight == 480) ypos += 52; else ypos += 32; setfontsize (18); DrawText (-1, ypos += 30, (char*)"Technical"); setfontsize (14); DrawText (-1, ypos += 22, (char*)"Snes9x v1.5.1 - Snes9x Team"); DrawText (-1, ypos += 18, (char*)"GameCube Port 2.0 WIP6 and earlier - SoftDev"); DrawText (-1, ypos += 18, (char*)"Additional improvements to 2.0 WIP6 - eke-eke"); DrawText (-1, ypos += 18, (char*)"GameCube 2.0.1bx enhancements - crunchy2"); DrawText (-1, ypos += 18, (char*)"v00x updates - michniewski & Tantric"); DrawText (-1, ypos += 18, (char*)"GX - http://www.gc-linux.org"); DrawText (-1, ypos += 18, (char*)"libogc - Shagkur & wintermute"); setfontsize (18); DrawText (-1, ypos += 30, (char*)"Testing"); setfontsize (14); DrawText (-1, ypos += 22, (char*)"crunchy2 / tehskeen users / others"); setfontsize (18); DrawText (-1, ypos += 30, (char*)"Documentation"); setfontsize (14); DrawText (-1, ypos += 22, (char*)"brakken, crunchy2, michniewski"); setfontsize (12); DrawText (-1, ypos += 50, (char*)"Snes9x - Copyright (c) Snes9x Team 1996 - 2006"); DrawText (-1, ypos += 15, (char*)"This software is open source and may be copied, distributed, or modified"); DrawText (-1, ypos += 15, (char*)"under the terms of the GNU General Public License (GPL) Version 2."); showscreen (); } /**************************************************************************** * getcolour * * Simply converts RGB to Y1CbY2Cr format * * I got this from a pastebin, so thanks to whoever originally wrote it! ****************************************************************************/ unsigned int getcolour (u8 r1, u8 g1, u8 b1) { int y1, cb1, cr1, y2, cb2, cr2, cb, cr; u8 r2, g2, b2; r2 = r1; g2 = g1; b2 = b1; y1 = (299 * r1 + 587 * g1 + 114 * b1) / 1000; cb1 = (-16874 * r1 - 33126 * g1 + 50000 * b1 + 12800000) / 100000; cr1 = (50000 * r1 - 41869 * g1 - 8131 * b1 + 12800000) / 100000; y2 = (299 * r2 + 587 * g2 + 114 * b2) / 1000; cb2 = (-16874 * r2 - 33126 * g2 + 50000 * b2 + 12800000) / 100000; cr2 = (50000 * r2 - 41869 * g2 - 8131 * b2 + 12800000) / 100000; cb = (cb1 + cb2) >> 1; cr = (cr1 + cr2) >> 1; return ((y1 << 24) | (cb << 16) | (y2 << 8) | cr); } /**************************************************************************** * Unpackbackdrop ****************************************************************************/ void unpackbackdrop () { unsigned long res, inbytes, outbytes; unsigned int colour; int offset; int i; // backdrop = (unsigned int *) malloc (screenheight * 1280); backdrop = (u32 *) malloc (screenheight * 1280); colour = getcolour (0x00, 0x00, 0x00); /*** Fill with black for now ***/ for (i = 0; i < (320 * screenheight); i++) backdrop[i] = colour; /*** If it's PAL50, need to move down a few lines ***/ offset = ((screenheight - 480) >> 1) * 320; inbytes = BG_COMPRESSED; outbytes = BG_RAW; res = uncompress ((Bytef *) backdrop + offset, &outbytes, (Bytef *) bg, inbytes); #ifndef HW_RVL /*** Now store the backdrop in ARAM ***/ ARAMPut ((char *) backdrop, (char *) AR_BACKDROP, 640 * screenheight * 2); free (backdrop); #endif // otherwise (on wii) backdrop is stored in memory clearscreen (); showscreen (); } /**************************************************************************** * Wait for user to press A ****************************************************************************/ void WaitButtonA () { #ifdef HW_RVL while ( (PAD_ButtonsDown (0) & PAD_BUTTON_A) || (WPAD_ButtonsDown(0) & (WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A)) ) VIDEO_WaitVSync(); while (!(PAD_ButtonsDown (0) & PAD_BUTTON_A) && !(WPAD_ButtonsDown(0) & (WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A)) ) VIDEO_WaitVSync(); #else while ( PAD_ButtonsDown (0) & PAD_BUTTON_A ) VIDEO_WaitVSync(); while (!(PAD_ButtonsDown (0) & PAD_BUTTON_A) ) VIDEO_WaitVSync(); #endif } /**************************************************************************** * Wait for user to press A or B. Returns 0 = B; 1 = A ****************************************************************************/ int WaitButtonAB () { #ifdef HW_RVL u32 gc_btns, wm_btns; while ( (PAD_ButtonsDown (0) & (PAD_BUTTON_A | PAD_BUTTON_B)) || (WPAD_ButtonsDown(0) & (WPAD_BUTTON_A | WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_A | WPAD_CLASSIC_BUTTON_B)) ) VIDEO_WaitVSync(); while ( TRUE ) { gc_btns = PAD_ButtonsDown (0); wm_btns = WPAD_ButtonsDown (0); if ( (gc_btns & PAD_BUTTON_A) || (wm_btns & (WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A)) ) return 1; else if ( (gc_btns & PAD_BUTTON_B) || (wm_btns & (WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B)) ) return 0; } #else u32 gc_btns; while ( (PAD_ButtonsDown (0) & (PAD_BUTTON_A | PAD_BUTTON_B)) ) VIDEO_WaitVSync(); while ( TRUE ) { gc_btns = PAD_ButtonsDown (0); if ( gc_btns & PAD_BUTTON_A ) return 1; else if ( gc_btns & PAD_BUTTON_B ) return 0; } #endif } /**************************************************************************** * Show a prompt ****************************************************************************/ void WaitPrompt (char *msg) { int ypos = (screenheight - 64) >> 1; if (screenheight == 480) ypos += 52; else ypos += 32; clearscreen (); DrawText (-1, ypos, msg); ypos += 30; DrawText (-1, ypos, (char*)"Press A to continue"); showscreen (); WaitButtonA (); } /**************************************************************************** * Show a prompt with choice of two options. Returns 1 if A button was pressed and 0 if B button was pressed. ****************************************************************************/ int WaitPromptChoice (char *msg, char *bmsg, char *amsg) { int ypos = (screenheight - 64) >> 1; if (screenheight == 480) ypos += 37; else ypos += 17; clearscreen (); DrawText (-1, ypos, msg); ypos += 60; char txt[80]; sprintf (txt, "B = %s : A = %s", bmsg, amsg); DrawText (-1, ypos, txt); showscreen (); return WaitButtonAB (); } /**************************************************************************** * Show an action in progress ****************************************************************************/ void ShowAction (char *msg) { int ypos = (screenheight - 30) >> 1; if (screenheight == 480) ypos += 52; else ypos += 32; clearscreen (); DrawText (-1, ypos, msg); showscreen (); } /**************************************************************************** * Generic Menu Routines ****************************************************************************/ void DrawMenu (char items[][50], char *title, int maxitems, int selected, int fontsize, int x) { int i, w = 0; int ypos = 0; int n = 1; int line_height; ypos = 65; if (screenheight == 480) ypos += 52; else ypos += 32; clearscreen (); setfontcolour (0, 0, 0); if (title != NULL) { setfontsize (28); DrawText (-1, 60, title); } setfontsize (12); DrawText (510, screenheight - 20, (char *)"Snes9x GX 005"); // Draw menu items setfontsize (fontsize); // set font size line_height = (fontsize + 8); for (i = 0; i < maxitems; i++) { if(strlen(items[i]) > 0) { if ( items[i] == NULL ) ypos -= line_height; else if (i == selected) { for( w = 0; w < line_height; w++ ) DrawLineFast( 30, 610, n * line_height + (ypos-line_height+6) + w, 0x80, 0x80, 0x80 ); setfontcolour (0xff, 0xff, 0xff); DrawText (x, n * line_height + ypos, items[i]); setfontcolour (0x00, 0x00, 0x00); } else { DrawText (x, n * line_height + ypos, items[i]); } n++; } } showscreen (); } /**************************************************************************** * FindMenuItem * * Help function to find the next visible menu item on the list * Supports menu wrap-around ****************************************************************************/ int FindMenuItem(char items[][50], int maxitems, int currentItem, int direction) { int nextItem = currentItem + direction; if(nextItem < 0) nextItem = maxitems-1; else if(nextItem >= maxitems) nextItem = 0; if(strlen(items[nextItem]) > 0) return nextItem; else return FindMenuItem(&items[0], maxitems, nextItem, direction); } /**************************************************************************** * RunMenu * * Call this with the menu array defined in menu.cpp * It's here to keep all the font / interface stuff together. ****************************************************************************/ int menu = 0; int RunMenu (char items[][50], int maxitems, char *title, int fontsize, int x) { int redraw = 1; int quit = 0; u32 p, wp; int ret = 0; signed char a; float mag = 0; float mag2 = 0; u16 ang = 0; u16 ang2 = 0; while (quit == 0) { if (redraw) { DrawMenu (&items[0], title, maxitems, menu, fontsize); redraw = 0; } p = PAD_ButtonsDown (0); #ifdef HW_RVL wp = WPAD_ButtonsDown (0); wpad_get_analogues(0, &mag, &ang, &mag2, &ang2); // get joystick info from wii expansions #else wp = 0; #endif a = PAD_StickY (0); VIDEO_WaitVSync(); // slow things down a bit so we don't overread the pads /*** Look for up ***/ if ( (p & PAD_BUTTON_UP) || (wp & (WPAD_BUTTON_UP | WPAD_CLASSIC_BUTTON_UP)) || (a > 70) || (mag>JOY_THRESHOLD && (ang>300 || ang<50)) ) { redraw = 1; menu = FindMenuItem(&items[0], maxitems, menu, -1); } /*** Look for down ***/ if ( (p & PAD_BUTTON_DOWN) || (wp & (WPAD_BUTTON_DOWN | WPAD_CLASSIC_BUTTON_DOWN)) || (a < -70) || (mag>JOY_THRESHOLD && (ang>130 && ang<230)) ) { redraw = 1; menu = FindMenuItem(&items[0], maxitems, menu, +1); } if ((p & PAD_BUTTON_A) || (wp & (WPAD_BUTTON_A | WPAD_CLASSIC_BUTTON_A))) { quit = 1; ret = menu; } if ((p & PAD_BUTTON_B) || (wp & (WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B))) { quit = -1; ret = -1; } } /*** Wait for B button to be released before proceeding ***/ while ( (PAD_ButtonsDown(0) & PAD_BUTTON_B) #ifdef HW_RVL || (WPAD_ButtonsDown(0) & (WPAD_BUTTON_B | WPAD_CLASSIC_BUTTON_B)) #endif ) { ret = -1; VIDEO_WaitVSync(); } return ret; } /**************************************************************************** * ROM Information Screen ****************************************************************************/ void RomInfo() { clearscreen (); int ypos = 65; if (screenheight == 480) ypos += 52; else ypos += 32; setfontsize (28); DrawText (-1, 60, (char*)"Rom Information"); setfontsize (16); setfontcolour (0x00, 0x00, 0x00); #define MENU_INFO_ROM "ROM" #define MENU_INFO_ROMID "ROMID" #define MENU_INFO_COMPANY "Company" #define MENU_INFO_SIZE "Size" #define MENU_INFO_SRAM "SRAM" #define MENU_INFO_TYPE "Type" #define MENU_INFO_CHECKSUM "Checksum" #define MENU_INFO_TVTYPE "TV Type" #define MENU_INFO_FRAMES "Frames" #define MENU_INFO_CRC32 "CRC32" char fmtString[1024]; ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_ROM); DrawText (300, ypos, Memory.ROMName); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_ROMID); DrawText (300, ypos, Memory.ROMId); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_COMPANY); DrawText (300, ypos, Memory.CompanyId); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_SIZE); sprintf(fmtString, "%d", Memory.ROMSize); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_SRAM); sprintf(fmtString, "%d", Memory.SRAMSize); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_TYPE); sprintf(fmtString, "%d", Memory.ROMType); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_CHECKSUM); sprintf(fmtString, "%04x / %04x", Memory.ROMChecksum, Memory.ROMComplementChecksum); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_TVTYPE); sprintf(fmtString, "%s", Settings.PAL ? "PAL" : "NTSC"); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_FRAMES); sprintf(fmtString, "%d", Memory.ROMFramesPerSecond); DrawText (300, ypos, fmtString); ypos += 20; DrawText (150, ypos, (char *)MENU_INFO_CRC32); sprintf(fmtString, "%08X", Memory.ROMCRC32); DrawText (300, ypos, fmtString); showscreen (); } /**************************************************************************** * DrawLine * * Quick'n'Dirty Bresenham line drawing routine. ****************************************************************************/ #define SIGN(x) ((x<0)?-1:((x>0)?1:0)) void DrawLine (int x1, int y1, int x2, int y2, u8 r, u8 g, u8 b) { u32 colour, pixel; u32 colourhi, colourlo; int i, dx, dy, sdx, sdy, dxabs, dyabs, x, y, px, py; int sp; colour = getcolour (r, g, b); colourhi = colour & 0xffff0000; colourlo = colour & 0xffff; dx = x2 - x1; /*** Horizontal distance ***/ dy = y2 - y1; /*** Vertical distance ***/ dxabs = abs (dx); dyabs = abs (dy); sdx = SIGN (dx); sdy = SIGN (dy); x = dyabs >> 1; y = dxabs >> 1; px = x1; py = y1; sp = (py * 320) + (px >> 1); pixel = xfb[whichfb][sp]; /*** Plot this pixel ***/ if (px & 1) xfb[whichfb][sp] = (pixel & 0xffff0000) | colourlo; else xfb[whichfb][sp] = (pixel & 0xffff) | colourhi; if (dxabs >= dyabs) /*** Mostly horizontal ***/ { for (i = 0; i < dxabs; i++) { y += dyabs; if (y >= dxabs) { y -= dxabs; py += sdy; } px += sdx; sp = (py * 320) + (px >> 1); pixel = xfb[whichfb][sp]; if (px & 1) xfb[whichfb][sp] = (pixel & 0xffff0000) | colourlo; else xfb[whichfb][sp] = (pixel & 0xffff) | colourhi; } } else { for (i = 0; i < dyabs; i++) { x += dxabs; if (x >= dyabs) { x -= dyabs; px += sdx; } py += sdy; sp = (py * 320) + (px >> 1); pixel = xfb[whichfb][sp]; if (px & 1) xfb[whichfb][sp] = (pixel & 0xffff0000) | colourlo; else xfb[whichfb][sp] = (pixel & 0xffff) | colourhi; } } } /**************************************************************************** * Progress Bar * * Show the user what's happening ****************************************************************************/ void ShowProgress (char *msg, int done, int total) { int ypos = (screenheight - 30) >> 1; if (screenheight == 480) ypos += 52; else ypos += 32; int xpos; int i; clearscreen (); DrawText (-1, ypos, msg); /*** Draw a white outline box ***/ for (i = 380; i < 401; i++) DrawLine (100, i, 540, i, 0xff, 0xff, 0xff); /*** Show progess ***/ xpos = (int) (((float) done / (float) total) * 438); for (i = 381; i < 400; i++) DrawLine (101, i, 101 + xpos, i, 0x00, 0x00, 0x80); showscreen (); } /**************************************************************************** * DrawPolygon ****************************************************************************/ void DrawPolygon (int vertices, int varray[], u8 r, u8 g, u8 b) { int i; for (i = 0; i < vertices - 1; i++) { DrawLine (varray[(i << 1)], varray[(i << 1) + 1], varray[(i << 1) + 2], varray[(i << 1) + 3], r, g, b); } DrawLine (varray[0], varray[1], varray[(vertices << 1) - 2], varray[(vertices << 1) - 1], r, g, b); } /***************************************************************************** * Draw Line Fast * * This routine requires that start and endx are 32bit aligned. * It tries to perform a semi-transparency over the existing image. *****************************************************************************/ #define SRCWEIGHT 0.7f #define DSTWEIGHT (1.0f - SRCWEIGHT) static inline u8 c_adjust( u8 c , float weight ) { return (u8)((float)c * weight); } void DrawLineFast( int startx, int endx, int y, u8 r, u8 g, u8 b ) { int width; u32 offset; int i; u32 colour, clo, chi; u32 lo,hi; u8 *s, *d; //colour = getcolour(r, g, b); colour = ( r << 16 | g << 8 | b ); d = (u8 *)&colour; d[1] = c_adjust(d[1], DSTWEIGHT); d[2] = c_adjust(d[2], DSTWEIGHT); d[3] = c_adjust(d[3], DSTWEIGHT); width = ( endx - startx ) >> 1; offset = ( y << 8 ) + ( y << 6 ) + ( startx >> 1 ); for ( i = 0; i < width; i++ ) { lo = getrgb(xfb[whichfb][offset], 0); hi = getrgb(xfb[whichfb][offset], 1); s = (u8 *)&hi; s[1] = ( ( c_adjust(s[1],SRCWEIGHT) ) + d[1] ); s[2] = ( ( c_adjust(s[2],SRCWEIGHT) ) + d[2] ); s[3] = ( ( c_adjust(s[3],SRCWEIGHT) ) + d[3] ); s = (u8 *)&lo; s[1] = ( ( c_adjust(s[1],SRCWEIGHT) ) + d[1] ); s[2] = ( ( c_adjust(s[2],SRCWEIGHT) ) + d[2] ); s[3] = ( ( c_adjust(s[3],SRCWEIGHT) ) + d[3] ); clo = getcolour( s[1], s[2], s[3] ); s = (u8 *)&hi; chi = getcolour( s[1], s[2], s[3] ); xfb[whichfb][offset++] = (chi & 0xffff0000 ) | ( clo & 0xffff) ; } } /***************************************************************************** * Ok, I'm useless with Y1CBY2CR colour. * So convert back to RGB so I can work with it -;) ****************************************************************************/ u32 getrgb( u32 ycbr, u32 low ) { u8 r,g,b; u32 y; s8 cb,cr; if ( low ) y = ( ycbr & 0xff00 ) >> 8; else y = ( ycbr & 0xff000000 ) >> 24; cr = ycbr & 0xff; cb = ( ycbr & 0xff0000 ) >> 16; cr -= 128; cb -= 128; r = (u8)((float)y + 1.371 * (float)cr); g = (u8)((float)y - 0.698 * (float)cr - 0.336 * (float)cb); b = (u8)((float)y + 1.732 * (float)cb); return (u32)( r << 16 | g << 8 | b ); }