/*--------------------------------------------------------------------------- * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. See also the license.txt file for * additional informations. *--------------------------------------------------------------------------- */ /* graphics.cpp: implementation of the graphics class. */ #include "types.h" #include "graphics.h" #include "race-memory.h" #if defined(ABGR1555) #define RMASK 0x001f #define GMASK 0x03e0 #define BMASK 0x7c00 #else #define RMASK 0xf800 #define GMASK 0x07e0 #define BMASK 0x001f #endif extern struct ngp_screen* screen; extern int gfx_hacks; /* * 16 bit graphics buffers * At the moment there's no system which uses more than 16 bit * colors. * A graphics buffer holds number referencing to the color from * the "total palette" for that system. */ int totalpalette[32*32*32]; /* Allows application of a 'dark filter' to reduce the * glare of white backgrounds when viewing NGP content * on a backlit screen * Note: This code has no consistency regarding variable * names - so we just use the normal libretro standard of * delimiter-separated words... */ static unsigned dark_filter_level = 0; static unsigned short *drawBuffer; /* NGP specific * precalculated pattern structures */ const unsigned char mypatterns[256*4] = { 0,0,0,0, 0,0,0,1, 0,0,0,2, 0,0,0,3, 0,0,1,0, 0,0,1,1, 0,0,1,2, 0,0,1,3, 0,0,2,0, 0,0,2,1, 0,0,2,2, 0,0,2,3, 0,0,3,0, 0,0,3,1, 0,0,3,2, 0,0,3,3, 0,1,0,0, 0,1,0,1, 0,1,0,2, 0,1,0,3, 0,1,1,0, 0,1,1,1, 0,1,1,2, 0,1,1,3, 0,1,2,0, 0,1,2,1, 0,1,2,2, 0,1,2,3, 0,1,3,0, 0,1,3,1, 0,1,3,2, 0,1,3,3, 0,2,0,0, 0,2,0,1, 0,2,0,2, 0,2,0,3, 0,2,1,0, 0,2,1,1, 0,2,1,2, 0,2,1,3, 0,2,2,0, 0,2,2,1, 0,2,2,2, 0,2,2,3, 0,2,3,0, 0,2,3,1, 0,2,3,2, 0,2,3,3, 0,3,0,0, 0,3,0,1, 0,3,0,2, 0,3,0,3, 0,3,1,0, 0,3,1,1, 0,3,1,2, 0,3,1,3, 0,3,2,0, 0,3,2,1, 0,3,2,2, 0,3,2,3, 0,3,3,0, 0,3,3,1, 0,3,3,2, 0,3,3,3, 1,0,0,0, 1,0,0,1, 1,0,0,2, 1,0,0,3, 1,0,1,0, 1,0,1,1, 1,0,1,2, 1,0,1,3, 1,0,2,0, 1,0,2,1, 1,0,2,2, 1,0,2,3, 1,0,3,0, 1,0,3,1, 1,0,3,2, 1,0,3,3, 1,1,0,0, 1,1,0,1, 1,1,0,2, 1,1,0,3, 1,1,1,0, 1,1,1,1, 1,1,1,2, 1,1,1,3, 1,1,2,0, 1,1,2,1, 1,1,2,2, 1,1,2,3, 1,1,3,0, 1,1,3,1, 1,1,3,2, 1,1,3,3, 1,2,0,0, 1,2,0,1, 1,2,0,2, 1,2,0,3, 1,2,1,0, 1,2,1,1, 1,2,1,2, 1,2,1,3, 1,2,2,0, 1,2,2,1, 1,2,2,2, 1,2,2,3, 1,2,3,0, 1,2,3,1, 1,2,3,2, 1,2,3,3, 1,3,0,0, 1,3,0,1, 1,3,0,2, 1,3,0,3, 1,3,1,0, 1,3,1,1, 1,3,1,2, 1,3,1,3, 1,3,2,0, 1,3,2,1, 1,3,2,2, 1,3,2,3, 1,3,3,0, 1,3,3,1, 1,3,3,2, 1,3,3,3, 2,0,0,0, 2,0,0,1, 2,0,0,2, 2,0,0,3, 2,0,1,0, 2,0,1,1, 2,0,1,2, 2,0,1,3, 2,0,2,0, 2,0,2,1, 2,0,2,2, 2,0,2,3, 2,0,3,0, 2,0,3,1, 2,0,3,2, 2,0,3,3, 2,1,0,0, 2,1,0,1, 2,1,0,2, 2,1,0,3, 2,1,1,0, 2,1,1,1, 2,1,1,2, 2,1,1,3, 2,1,2,0, 2,1,2,1, 2,1,2,2, 2,1,2,3, 2,1,3,0, 2,1,3,1, 2,1,3,2, 2,1,3,3, 2,2,0,0, 2,2,0,1, 2,2,0,2, 2,2,0,3, 2,2,1,0, 2,2,1,1, 2,2,1,2, 2,2,1,3, 2,2,2,0, 2,2,2,1, 2,2,2,2, 2,2,2,3, 2,2,3,0, 2,2,3,1, 2,2,3,2, 2,2,3,3, 2,3,0,0, 2,3,0,1, 2,3,0,2, 2,3,0,3, 2,3,1,0, 2,3,1,1, 2,3,1,2, 2,3,1,3, 2,3,2,0, 2,3,2,1, 2,3,2,2, 2,3,2,3, 2,3,3,0, 2,3,3,1, 2,3,3,2, 2,3,3,3, 3,0,0,0, 3,0,0,1, 3,0,0,2, 3,0,0,3, 3,0,1,0, 3,0,1,1, 3,0,1,2, 3,0,1,3, 3,0,2,0, 3,0,2,1, 3,0,2,2, 3,0,2,3, 3,0,3,0, 3,0,3,1, 3,0,3,2, 3,0,3,3, 3,1,0,0, 3,1,0,1, 3,1,0,2, 3,1,0,3, 3,1,1,0, 3,1,1,1, 3,1,1,2, 3,1,1,3, 3,1,2,0, 3,1,2,1, 3,1,2,2, 3,1,2,3, 3,1,3,0, 3,1,3,1, 3,1,3,2, 3,1,3,3, 3,2,0,0, 3,2,0,1, 3,2,0,2, 3,2,0,3, 3,2,1,0, 3,2,1,1, 3,2,1,2, 3,2,1,3, 3,2,2,0, 3,2,2,1, 3,2,2,2, 3,2,2,3, 3,2,3,0, 3,2,3,1, 3,2,3,2, 3,2,3,3, 3,3,0,0, 3,3,0,1, 3,3,0,2, 3,3,0,3, 3,3,1,0, 3,3,1,1, 3,3,1,2, 3,3,1,3, 3,3,2,0, 3,3,2,1, 3,3,2,2, 3,3,2,3, 3,3,3,0, 3,3,3,1, 3,3,3,2, 3,3,3,3, }; /* target window */ /* unsigned short p2[16] = { 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000, 0x8000 }; */ #define BLIT_X_OFFSET 8 #define BLIT_Y_OFFSET 8 #define BLIT_OFFSET (BLIT_X_OFFSET + (BLIT_Y_OFFSET*SIZEX)) #define BLIT_WIDTH (160) #define BLIT_HEIGHT (152) #define SCREEN_X_OFFSET ((screen->w - BLIT_WIDTH)/2) #define SCREEN_Y_OFFSET ((screen->h - BLIT_HEIGHT)/2) /* (32) 32 is good for 480x272 -64 is for 320x240 (squish) */ #define PSP_FUDGE 0 /* extra fudge factor for PSP? */ #define SCREEN_OFFET (SCREEN_X_OFFSET + (SCREEN_Y_OFFSET*(screen->w+PSP_FUDGE))) /* * * Palette Initialization * */ void (*palette_init)(DWORD dwRBitMask, DWORD dwGBitMask, DWORD dwBBitMask); void palette_init32(DWORD dwRBitMask, DWORD dwGBitMask, DWORD dwBBitMask) { /* dbg_print("in palette_init32(0x%X, 0x%X, 0x%X)\n", dwRBitMask, dwGBitMask, dwBBitMask); char RShiftCount = 0, GShiftCount = 0, BShiftCount = 0; char RBitCount = 0, GBitCount = 0, BBitCount = 0; int r,g,b; DWORD i; i = dwRBitMask; while (!(i&1)) { i = i >> 1; RShiftCount++; } while (i&1) { i = i >> 1; RBitCount++; } i = dwGBitMask; while (!(i&1)) { i = i >> 1; GShiftCount++; } while (i&1) { i = i >> 1; GBitCount++; } i = dwBBitMask; while (!(i&1)) { i = i >> 1; BShiftCount++; } while (i&1) { i = i >> 1; BBitCount++; } switch(m_emuInfo.machine) { case NGP: case NGPC: case GAMEGEAR: case LYNX: case WONDERSWAN: case WONDERSWANCOLOR: case ADVISION: for (b=0; b<16; b++) for (g=0; g<16; g++) for (r=0; r<16; r++) totalpalette[b*256+g*16+r] = (((b<<(BBitCount-4))+(b>>(4-(BBitCount-4))))<>(4-(GBitCount-4))))<>(4-(RBitCount-4))))<>(5-(BBitCount-5))))<>(5-(GBitCount-5))))<>(5-(RBitCount-5))))<HSL->RGB * conversion. We just do simple linear scaling instead. * Basically, this is intended for use on devices that are 8 too weak to run shaders (i.e. why would you want a 'dark filter' * if your device supports proper LCD shaders?). We therefore * cut corners for the sake of performance... * * Constants * > Luminosity factors: photometric/digital ITU BT.709 *static const float luma_r = 0.2126f; *static const float luma_g = 0.7152f; *static const float luma_b = 0.0722f; * > Luminosity factors: Digital ITU BT.601 * (seems to produce better results than ITU BT.709) */ static const float luma_r = 0.299f; static const float luma_g = 0.587f; static const float luma_b = 0.114f; /* Calculate luminosity */ float luma = (luma_r * (*r)) + (luma_g * (*g)) + (luma_b * (*b)); /* Get 'darkness' scaling factor * > User set 'dark filter' level scaled by current luminosity * (i.e. lighter colours affected more than darker colours) */ float dark_factor = 1.0f - (((float)(dark_filter_level) * 0.01f) * luma); dark_factor = dark_factor < 0.0f ? 0.0f : dark_factor; /* Perform scaling... */ *r = (*r) * dark_factor; *g = (*g) * dark_factor; *b = (*b) * dark_factor; } void palette_init16(DWORD dwRBitMask, DWORD dwGBitMask, DWORD dwBBitMask) { char RShiftCount = 0, GShiftCount = 0, BShiftCount = 0; char RBitCount = 0, GBitCount = 0, BBitCount = 0; int r,g,b; DWORD i; i = dwRBitMask; while (!(i&1)) { i = i >> 1; RShiftCount++; } while (i&1) { i = i >> 1; RBitCount++; } i = dwGBitMask; while (!(i&1)) { i = i >> 1; GShiftCount++; } while (i&1) { i = i >> 1; GBitCount++; } i = dwBBitMask; while (!(i&1)) { i = i >> 1; BShiftCount++; } while (i&1) { i = i >> 1; BBitCount++; } switch(m_emuInfo.machine) { case NGP: case NGPC: if (dark_filter_level > 0) { static const float rgb_max = 15.0f; static const float rgb_max_inv = 1.0f / 15.0f; float r_float, g_float, b_float; int r_final, g_final, b_final; /* Perform RGB assignment with colour conversion */ for (b=0; b<16; b++) { for (g=0; g<16; g++) { for (r=0; r<16; r++) { /* Convert colour range from [0,0xF] to [0,1] */ r_float = (float)(r) * rgb_max_inv; g_float = (float)(g) * rgb_max_inv; b_float = (float)(b) * rgb_max_inv; /* Perform image darkening */ darken_rgb(&r_float, &g_float, &b_float); /* Convert back to 4bit unsigned */ r_final = (int)((r_float * rgb_max) + 0.5f) & 0xF; g_final = (int)((g_float * rgb_max) + 0.5f) & 0xF; b_final = (int)((b_float * rgb_max) + 0.5f) & 0xF; totalpalette[b*256+g*16+r] = (((b_final<<(BBitCount-4))+(b_final>>(4-(BBitCount-4))))<>(4-(GBitCount-4))))<>(4-(RBitCount-4))))<>(4-(BBitCount-4))))<>(4-(GBitCount-4))))<>(4-(RBitCount-4))))< 100) ? 100 : dark_filter_level; if (dark_filter_level != prev_dark_filter_level) palette_init16(RMASK, GMASK, BMASK); } void palette_init8(DWORD dwRBitMask, DWORD dwGBitMask, DWORD dwBBitMask) { } void pngpalette_init(void) { /* int r,g,b; switch(m_emuInfo.machine) { case NGP: case NGPC: case GAMEGEAR: case LYNX: case WONDERSWAN: case WONDERSWANCOLOR: case ADVISION: for (b=0; b<16; b++) for (g=0; g<16; g++) for (r=0; r<16; r++) { totalpalette32[b*256+g*16+r] = (((b<<(8-4))+(b>>(4-(8-4))))<<0) + (((g<<(8-4))+(g>>(4-(8-4))))<<8) + (((r<<(8-4))+(r>>(4-(8-4))))<<16); } break; case GAMEBOY: case GAMEBOYPOCKET: case GAMEBOYCOLOR: case SUPERGAMEBOY: case SUPERVISION: case NES: for (b=0; b<32; b++) for (g=0; g<32; g++) for (r=0; r<32; r++) { totalpalette32[b*32*32+g*32+r] = (((b<<(8-5))+(b>>(5-(8-5))))<<0) + (((g<<(8-5))+(g>>(5-(8-5))))<<8) + (((r<<(8-5))+(r>>(5-(8-5))))<<16); } break; }*/ } /* * * Neogeo Pocket & Neogeo Pocket color rendering * */ /* NOTA Color para juegos b/n */ static const unsigned short bwTable[8] = { /* NOTA nose,nose,window,nose,nose,nose,nose,nose * B, G,R */ 0x0FFF, 0x0DDD, 0x0BBB, 0x0999, 0x0777, 0x0555, 0x0333, 0x0000 }; /* used for rendering the sprites */ typedef struct { unsigned short offset; /* offset in graphics buffer to blit, Flavor hopes 16bits is good enough */ unsigned short pattern; /* pattern code including palette number */ unsigned short *tilept; /* pointer into the tile description */ unsigned short *palette; /* palette used to render this sprite */ } SPRITE; typedef struct { unsigned short *gbp; /* (0,x) base for drawing */ unsigned char count[152]; SPRITE sprite[152][64]; } SPRITEDEFS; SPRITEDEFS spriteDefs[3]; /* 4 priority levels */ /* definitions of types and variables that are used internally during * rendering of a screen */ typedef struct { unsigned short *gbp; /* pointer into graphics buffer */ unsigned char oldScrollX; /* keep an eye on the old and previous values */ unsigned char *newScrollX; /* of the scroll values */ unsigned char oldScrollY; unsigned char *newScrollY; unsigned short *tileBase; /* start address of the tile table this structure represents */ short tile[21]; /* the tile code */ unsigned short *palettes[21]; /* palettes associated with tiles */ unsigned short *tilept[21]; /* tile lines to render */ unsigned short *palette; /* palette for the tiles this VSYNC */ } TILECACHE; unsigned short palettes[16*4+16*4+16*4]; /* placeholder for the converted palette */ TILECACHE tCBack; /* tile pointer cache for the back buffer */ TILECACHE tCFront; /* tile pointer cache for the front buffer */ static INLINE void set_paletteCol( unsigned short *palette_table, unsigned short *sprite, unsigned short *front, unsigned short *back) { int i; /* initialize palette table * * initialize back plane palette table */ for(i=0;i<16*4;i++) sprite[i] = NGPC_TO_SDL16(palette_table[i]); /* initialize front plane palette table */ for(i=0;i<16*4;i++) front[i] = NGPC_TO_SDL16(palette_table[i+16*4]); /* initialize sprite palette table (?) */ for(i=0;i<16*4;i++) back[i] = NGPC_TO_SDL16(palette_table[i+16*4*2]); } static INLINE void set_paletteBW( unsigned short *palette_table, unsigned short *sprite, unsigned short *front, unsigned short *back) { int i; unsigned char *pt = ((unsigned char *)palette_table)-0x0100; /* get b/w color table */ /* initialize palette table */ for(i=0;i<4;i++) { /* initialize sprite palette table */ sprite[i] = NGPC_TO_SDL16(bwTable[pt[i] & 0x07]); sprite[4+i] = NGPC_TO_SDL16(bwTable[pt[4+i] & 0x07]); /* initialize front plane palette table */ front[i] = NGPC_TO_SDL16(bwTable[pt[8+i] & 0x07]); front[4+i] = NGPC_TO_SDL16(bwTable[pt[8+4+i] & 0x07]); /* initialize back plane palette table */ back[i] = NGPC_TO_SDL16(bwTable[pt[16+i] & 0x07]); back[4+i] = NGPC_TO_SDL16(bwTable[pt[16+4+i] & 0x07]); } } /* I think there's something wrong with this on the GP2X, because CFC2's intro screen is all red */ static INLINE void lineClear(TILECACHE *tC, unsigned short col) { int i; for(i = 0; i < 21 * 8; i++) tC->gbp[i] = col; } static INLINE void clipLeftRight(SPRITEDEFS *sprDef, unsigned short OOWCol) { int i,j; j = *wndTopLeftX + 8; if (j > (NGPC_SIZEX+8)) j = NGPC_SIZEX+8; for(i=8; igbp[i] = OOWCol; j = j + *wndSizeX; if (j > (NGPC_SIZEX+8)) j = NGPC_SIZEX+8; for(i=j; i < (NGPC_SIZEX+8); i++) sprDef->gbp[i] = OOWCol; } static INLINE void lineFront(TILECACHE *tC) { int i; unsigned char a,b; const unsigned char *p2; unsigned short *gb; /* for 8bit SDL, this would set gb to the index of the proper color * then, we'd set gb to p2[n]+(i*sizeof(palette)) */ gb = tC->gbp; for (i=0;i<21;i++) { a = *(((unsigned char *)tC->tilept[i])+1); b = *((unsigned char *)tC->tilept[i]); if (tC->tile[i]&0x8000) { p2 = &mypatterns[b*4]; if (p2[3]) gb[0] = tC->palettes[i][p2[3]]; if (p2[2]) gb[1] = tC->palettes[i][p2[2]]; if (p2[1]) gb[2] = tC->palettes[i][p2[1]]; if (p2[0]) gb[3] = tC->palettes[i][p2[0]]; p2 = &mypatterns[a*4]; if (p2[3]) gb[4] = tC->palettes[i][p2[3]]; if (p2[2]) gb[5] = tC->palettes[i][p2[2]]; if (p2[1]) gb[6] = tC->palettes[i][p2[1]]; if (p2[0]) gb[7] = tC->palettes[i][p2[0]]; } else { p2 = &mypatterns[a*4]; if (p2[0]) gb[0] = tC->palettes[i][p2[0]]; if (p2[1]) gb[1] = tC->palettes[i][p2[1]]; if (p2[2]) gb[2] = tC->palettes[i][p2[2]]; if (p2[3]) gb[3] = tC->palettes[i][p2[3]]; p2 = &mypatterns[b*4]; if (p2[0]) gb[4] = tC->palettes[i][p2[0]]; if (p2[1]) gb[5] = tC->palettes[i][p2[1]]; if (p2[2]) gb[6] = tC->palettes[i][p2[2]]; if (p2[3]) gb[7] = tC->palettes[i][p2[3]]; } if (tC->tile[i]&0x4000) tC->tilept[i]-= 1; else tC->tilept[i]+= 1; gb+= 8; } } static INLINE void lineSprite(SPRITEDEFS *sprDefs) { int i; SPRITE *spr; unsigned short *gb; unsigned char a,b; const unsigned char *p2; /* for 8bit SDL, this would set gb to the index of the proper color * then, we'd set gb to p2[n] */ for (i=sprDefs->count[*scanlineY];i>0;i--) { spr = &sprDefs->sprite[*scanlineY][i-1]; gb = &sprDefs->gbp[spr->offset]; a = *(((unsigned char *)spr->tilept)+1); b = *((unsigned char *)spr->tilept); if (spr->pattern&0x8000) { p2 = &mypatterns[b*4]; if (p2[3]) gb[0] = spr->palette[p2[3]]; if (p2[2]) gb[1] = spr->palette[p2[2]]; if (p2[1]) gb[2] = spr->palette[p2[1]]; if (p2[0]) gb[3] = spr->palette[p2[0]]; p2 = &mypatterns[a*4]; if (p2[3]) gb[4] = spr->palette[p2[3]]; if (p2[2]) gb[5] = spr->palette[p2[2]]; if (p2[1]) gb[6] = spr->palette[p2[1]]; if (p2[0]) gb[7] = spr->palette[p2[0]]; } else { p2 = &mypatterns[a*4]; if (p2[0]) gb[0] = spr->palette[p2[0]]; if (p2[1]) gb[1] = spr->palette[p2[1]]; if (p2[2]) gb[2] = spr->palette[p2[2]]; if (p2[3]) gb[3] = spr->palette[p2[3]]; p2 = &mypatterns[b*4]; if (p2[0]) gb[4] = spr->palette[p2[0]]; if (p2[1]) gb[5] = spr->palette[p2[1]]; if (p2[2]) gb[6] = spr->palette[p2[2]]; if (p2[3]) gb[7] = spr->palette[p2[3]]; } } } /* sort all the sprites according to their priorities */ static INLINE void spriteSortAll(unsigned int bw) { unsigned int spriteCode; unsigned char x, y, prevx=0, prevy=0; unsigned int i, j, k, scanline; SPRITE *spr; SPRITEDEFS *SprPri40 = &spriteDefs[0]; SPRITEDEFS *SprPri80 = &spriteDefs[1]; SPRITEDEFS *SprPriC0 = &spriteDefs[2]; /* initialize the number of sprites in each structure */ memset(SprPri40->count, 0, 152); memset(SprPri80->count, 0, 152); memset(SprPriC0->count, 0, 152); for (i=0;i<64;i++) { spriteCode = *((unsigned short *)(sprite_table+4*i)); if ((spriteCode<=0xff) || ((spriteCode & 0x1800)==0)) continue; if (spriteCode & 0x0400) prevx+= *(sprite_table+4*i+2); else prevx = *(sprite_table+4*i+2) + 8; x = prevx + *scrollSpriteX; if (spriteCode & 0x0200) prevy+= *(sprite_table+4*i+3); else prevy = *(sprite_table+4*i+3) + 8; y = prevy + *scrollSpriteY; if (x>167 || y>151) continue; for(k=0; k<8; k++) { scanline = y+k-8; if(scanline < 0 || scanline >= 152) continue; switch (spriteCode & 0x1800) { /* case order reversed because priority 3 (and 2) sprites occur most of the time */ case 0x1800: spr = &SprPriC0->sprite[scanline][SprPriC0->count[scanline]++]; break; case 0x1000: spr = &SprPri80->sprite[scanline][SprPri80->count[scanline]++]; break; case 0x0800: spr = &SprPri40->sprite[scanline][SprPri40->count[scanline]++]; break; } j = scanline+8 - y; spr->pattern = spriteCode; spr->offset = x; spr->tilept = (unsigned short *)(pattern_table + 16*(spriteCode & 0x01ff) + ((spriteCode&0x4000) ? (7-j)*2 : j*2)); spr->palette = ((bw) ? &palettes[(spriteCode>>11)&0x04] : &palettes[(*(sprite_palette_numbers+i)&0x0F)*4]); } } } /* initialize drawing/blitting of a screen */ static void graphicsBlitInit(void) { /* buffers 0 and 1 * definitions for the back frame */ tCBack.gbp = &drawBuffer[8*SIZEX + (8-((*scrollBackX)&7))]; tCBack.newScrollX = scrollBackX; tCBack.newScrollY = scrollBackY; tCBack.tileBase = tile_table_back; tCBack.palette = &palettes[16*4+16*4]; /* definitions for the front frame */ tCFront.gbp = &drawBuffer[8*SIZEX + (8-((*scrollFrontX)&7))]; tCFront.newScrollX = scrollFrontX; tCFront.newScrollY = scrollFrontY; tCFront.tileBase = tile_table_front; tCFront.palette = &palettes[16*4]; /* definitions for sprite priorities */ spriteDefs[0].gbp = &drawBuffer[8*SIZEX]; spriteDefs[1].gbp = &drawBuffer[8*SIZEX]; spriteDefs[2].gbp = &drawBuffer[8*SIZEX]; /* force recalculations for first line */ tCBack.oldScrollX = *tCBack.newScrollX; tCBack.oldScrollY = *tCBack.newScrollY+1; /* force calculation of structure data */ tCFront.oldScrollX = *tCFront.newScrollX; tCFront.oldScrollY = *tCFront.newScrollY+1; /* force calculation of structure data */ /* start drawing at line 0 */ } static INLINE void RenderTileCache(TILECACHE *tC, unsigned int bw) { int i; unsigned char line; unsigned short *temp; if ((tC->oldScrollX != *tC->newScrollX) || (tC->oldScrollY != *tC->newScrollY) || (((*tC->newScrollY + *scanlineY)&7) == 0)) { /* update the structure to reflect the changed scroll registers * first update pointer into render buffer */ tC->gbp = tC->gbp + (tC->oldScrollX&7) - (*tC->newScrollX&7); tC->oldScrollX = *tC->newScrollX; tC->oldScrollY = *tC->newScrollY; temp = tC->tileBase + (((tC->oldScrollY + *scanlineY)&0xf8)<<2); for (i=0;i<21;i++) { tC->tile[i] = *(temp + (((tC->oldScrollX>>3) + i)&31)); line = (*tC->newScrollY + *scanlineY)&7; tC->palettes[i] = ((bw) ? tC->palette + ((tC->tile[i] & 0x2000) ? 4 : 0) : tC->palette + ((tC->tile[i]>>7) & 0x3C)); tC->tilept[i] = (unsigned short *)(pattern_table + ((tC->tile[i] & 0x01ff)<<4)); tC->tilept[i]+= ((tC->tile[i]&0x4000) ? 7-line : line); } } } /* * THOR'S GRAPHIC CORE */ typedef struct { unsigned char flip; unsigned char x; unsigned char pal; } MYSPRITE; typedef struct { unsigned short tile; unsigned char id; } MYSPRITEREF; typedef struct { unsigned char count[152]; MYSPRITEREF refs[152][64]; } MYSPRITEDEF; MYSPRITEDEF mySprPri40,mySprPri80,mySprPriC0; MYSPRITE mySprites[64]; unsigned short myPalettes[192]; void sortSprites(unsigned int bw) { unsigned int spriteCode; unsigned char x, y, prevx=0, prevy=0; unsigned int i, j; unsigned short tile; MYSPRITEREF *spr; /* initialize the number of sprites in each structure */ memset(mySprPri40.count, 0, 152); memset(mySprPri80.count, 0, 152); memset(mySprPriC0.count, 0, 152); for (i=0;i<64;i++) { spriteCode = *((unsigned short *)(sprite_table+4*i)); prevx = (spriteCode & 0x0400 ? prevx : 0) + *(sprite_table+4*i+2); x = prevx + *scrollSpriteX; prevy = (spriteCode & 0x0200 ? prevy : 0) + *(sprite_table+4*i+3); y = prevy + *scrollSpriteY; if ((x>167 && x<249) || (y>151 && y<249) || (spriteCode<=0xff) || ((spriteCode & 0x1800)==0)) continue; mySprites[i].x = x; mySprites[i].pal = bw ? ((spriteCode>>11)&0x04) : ((sprite_palette_numbers[i]&0xf)<<2); mySprites[i].flip = spriteCode>>8; tile = (spriteCode & 0x01ff)<<3; for (j = 0; j < 8; ++j,++y) { if (y>151) continue; switch (spriteCode & 0x1800) { case 0x1800: spr = &mySprPriC0.refs[y][mySprPriC0.count[y]++]; break; case 0x1000: spr = &mySprPri80.refs[y][mySprPri80.count[y]++]; break; case 0x0800: spr = &mySprPri40.refs[y][mySprPri40.count[y]++]; break; default: continue; } spr->id = i; spr->tile = tile + (spriteCode&0x4000 ? 7-j : j); } } } void drawSprites(unsigned short* draw, MYSPRITEREF *sprites,int count, int x0,int x1) { unsigned short*pal; unsigned int pattern,pix,cnt; MYSPRITE *spr; int i,cx; for (i=count-1;i>=0;--i) { pattern = patterns[sprites[i].tile]; if (pattern==0) continue; spr = &mySprites[sprites[i].id]; if (spr->x>248) cx = spr->x-256; else cx = spr->x; if (cx+8<=x0 || cx>=x1) continue; pal = &myPalettes[spr->pal]; if (cxflip&0x80) { pattern>>=((8-cnt)<<1); for (cx=x0;pattern;++cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } else { pattern &= (0xffff>>((8-cnt)<<1)); for (cx = x0+cnt-1;pattern;--cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } } else if (cx+7flip&0x80) { for (;pattern;++cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } else { for (cx+=7;pattern;--cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } } else { cnt = x1-cx; if (spr->flip&0x80) { pattern &= (0xffff>>((8-cnt)<<1)); for (;pattern;++cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } else { pattern>>=((8-cnt)<<1); for (cx+=cnt-1;pattern;--cx) { pix = pattern & 0x3; if (pix) draw[cx] = pal[pix]; pattern>>=2; } } } } } void drawScrollPlane(unsigned short* draw, unsigned short* tile_table,int scrpal, unsigned char dx,unsigned char dy, int x0,int x1,unsigned int bw) { unsigned short*tiles; unsigned short*pal; unsigned int pattern; unsigned int j,count,pix,idy,tile; int i,x2; dx+=x0; tiles = tile_table+((dy>>3)<<5)+(dx>>3); count = 8-(dx&0x7); dx &= 0xf8; dy &= 0x7; idy = 7-dy; i = x0; if (count<8) { tile = *(tiles++); pattern = patterns[(((tile&0x1ff))<<3) + (tile&0x4000 ? idy:dy)]; if (pattern) { pal = &myPalettes[scrpal + (bw ? (tile&0x2000 ? 4 : 0) : ((tile>>7)&0x3c))]; if (tile&0x8000) { pattern>>=((8-count)<<1); for (j=i;pattern;++j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } else { pattern &= (0xffff>>((8-count)<<1)); for (j=i+count-1;pattern;--j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } } i+=count; dx+=8; if (dx==0) tiles-=32; } x2 = i+((x1-i)&0xf8); for (;i>7)&0x3c))]; if (tile&0x8000) { for (j=i;pattern;++j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } else { for (j=i+7;pattern;--j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } } dx+=8; if (dx==0) tiles-=32; } if (x2!=x1) { count = x1-x2; tile = *(tiles++); pattern = patterns[(((tile&0x1ff))<<3) + (tile&0x4000 ? idy:dy)]; if (pattern) { pal = &myPalettes[scrpal + (bw ? (tile&0x2000 ? 4 : 0) : ((tile>>7)&0x3c))]; if (tile&0x8000) { pattern &= (0xffff>>((8-count)<<1)); for (j=i;pattern;++j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } else { pattern>>=((8-count)<<1); for (j=i+count-1;pattern;--j) { pix = pattern & 0x3; if (pix) draw[j] = pal[pix]; pattern>>=2; } } } } } void myGraphicsBlitLine(unsigned char render) /* NOTA */ { int i,x0,x1; if (*scanlineY < 152) { if(render) { #if __LIBRETRO__ unsigned short* draw = &drawBuffer[(*scanlineY)*(screen->w)]; #else unsigned short* draw = &drawBuffer[(*scanlineY)*(screen->w+PSP_FUDGE)];/* extra fudge factor for PSP??? */ #endif unsigned short bgcol; unsigned int bw = (m_emuInfo.machine == NGP); unsigned short OOWCol = NGPC_TO_SDL16(oowTable[*oowSelect & 0x07]); unsigned short* pal; unsigned short* mempal; if (*scanlineY==0) sortSprites(bw); if (*scanlineY<*wndTopLeftY || *scanlineY>*wndTopLeftY+*wndSizeY || *wndSizeX==0 || *wndSizeY==0) { for (i=0;iNGPC_SIZEX) x1 = NGPC_SIZEX; for (i=x0;i 0) drawScrollPlane(draw,tile_table_back,128,*scrollBackX,*scrollBackY+*scanlineY,x0,x1,bw); else drawScrollPlane(draw,tile_table_back,128,1,*scrollBackY+*scanlineY,x0,x1,bw);} } else { drawScrollPlane(draw,tile_table_back,128,*scrollBackX,*scrollBackY+*scanlineY,x0,x1,bw); if (mySprPri80.count[*scanlineY]) drawSprites(draw,mySprPri80.refs[*scanlineY],mySprPri80.count[*scanlineY],x0,x1); drawScrollPlane(draw,tile_table_front,64,*scrollFrontX,*scrollFrontY+*scanlineY,x0,x1,bw); } if (mySprPriC0.count[*scanlineY]) drawSprites(draw,mySprPriC0.refs[*scanlineY],mySprPriC0.count[*scanlineY],x0,x1); for (i=0;ipixels; #else dbg_print("in graphics_init\n"); switch (screen->format->BitsPerPixel) { case 8: palette_init = palette_init8; break; case 16: palette_init = palette_init16; break; case 32: palette_init = palette_init32; break; } drawBuffer = ((unsigned short*) screen->pixels) + SCREEN_OFFET; palette_init(screen->format->Rmask, screen->format->Gmask, screen->format->Bmask); pngpalette_init(); #endif switch(m_emuInfo.machine) { case NGP: bgTable = (unsigned short *)bwTable; oowTable = (unsigned short *)bwTable; graphicsBlitInit(); *scanlineY = 0; break; case NGPC: bgTable = (unsigned short *)get_address(0x000083E0); oowTable = (unsigned short *)get_address(0x000083F0); graphicsBlitInit(); *scanlineY = 0; break; } return TRUE; }