?? native.c
字號:
* borrowed from gl lib. */static gal_pixel mapcolor (GAL_GC gc, GAL_Color *color){ unsigned int v; switch (gc.psd->bpp) { case 1: if ((color->b + color->g + color->r) > 128*3) v = 1; else v = 0; return v; case 2: v = 0; if (color->b >= 64) v += 1; if (color->g >= 64) v += 2; if (color->r >= 64) v += 4; if (color->b >= 192 || color->g >= 192 || color->r >= 192) v += 8; v>>=2; return v; case 4: /* Now this is real fun. Map to standard EGA palette. */ v = 0; if (color->b >= 64) v += 1; if (color->g >= 64) v += 2; if (color->r >= 64) v += 4; if (color->b >= 192 || color->g >= 192 || color->r >= 192) v += 8; return v; case 8: return RGB2PIXEL332 (color->r, color->g, color->b); case 15: return RGB2PIXEL555 (color->r, color->g, color->b); case 16: return RGB2PIXEL565 (color->r, color->g, color->b); case 24: case 32: return RGB2PIXEL888 (color->r, color->g, color->b); } return -1;}static int unmappixel (GAL_GC gc, gal_pixel pixel, GAL_Color* color){ switch (gc.psd->bpp) { case 1: if (pixel) { color->r = 255; color->g = 255; color->b = 255; } else { color->r = 0; color->g = 0; color->b = 0; } break; case 2: case 4: color->r = SysPixelColor [pixel].r; color->g = SysPixelColor [pixel].g; color->b = SysPixelColor [pixel].b; break; case 8: color->r = PIXEL332RED (pixel) << 5; color->g = PIXEL332GREEN (pixel) << 5; color->b = PIXEL332BLUE (pixel) << 6; break; case 15: color->r = PIXEL555RED (pixel) << 3; color->g = PIXEL555GREEN (pixel) << 3; color->b = PIXEL555BLUE (pixel) << 3; break; case 16: color->r = PIXEL565RED (pixel) << 3; color->g = PIXEL565GREEN (pixel) << 2; color->b = PIXEL565BLUE (pixel) << 3; break; case 24: case 32: color->r = PIXEL888RED (pixel); color->g = PIXEL888GREEN (pixel); color->b = PIXEL888BLUE (pixel); break; } return 0;}/* * Palette operations */static int getpalette (GAL_GC gc, int s, int len, GAL_Color* cmap){ gc.psd->GetPalette(gc.psd,s,len,cmap); return 0;}static int setpalette (GAL_GC gc, int s, int len, GAL_Color* cmap){ gc.psd->SetPalette(gc.psd,s,len,cmap); return 0;}/* * Specical functions work for <=8 bit color mode. */static int setcolorfulpalette (GAL_GC gc){ int i; GAL_Color pal[256]; if (gc.psd->bpp > 8) return 0; switch ( gc.psd->bpp ) { case 1: for (i = 0; i < 2; i++) { pal[i].b = SysPixelColor[i*15].b; pal[i].g = SysPixelColor[i*15].g; pal[i].r = SysPixelColor[i*15].r; pal[i].a = 0; } gc.psd->SetPalette(gc.psd,0,2,pal); break; case 2: for (i = 0; i < 4; i++) { pal[i].b = SysPixelColor[i*4].b; pal[i].g = SysPixelColor[i*4].g; pal[i].r = SysPixelColor[i*4].r; pal[i].a = 0; } gc.psd->SetPalette(gc.psd,0,4,pal); break; case 4: for (i = 0; i < 16; i++) { pal[i].b = SysPixelColor[i].b; pal[i].g = SysPixelColor[i].g; pal[i].r = SysPixelColor[i].r; pal[i].a = 0; } gc.psd->SetPalette(gc.psd,0,16,pal); break; case 8: for (i = 0; i < 256; i++) {#if 1 pal[i].r = PIXEL332RED (i) << 5; pal[i].g = PIXEL332GREEN (i) << 5; pal[i].b = PIXEL332BLUE (i) << 6;#else pal[i].b = (i & 7) * (64 / 2); /* 3 bits */ pal[i].g = ((i & 56) >> 3) * (64 / 2); /* 3 bits */ pal[i].r = ((i & 192) >> 6) * (64); /* 2 bits */#endif pal[i].a = 0; } gc.psd->SetPalette (gc.psd, 0, 256, pal); break; default: break; } return 0;}/* * Box operations * TODO: Currently we did not do clpping in putbox() or getbox() or other. * If we do clipping at early, we can spend time... */static size_t boxsize (GAL_GC gc, int w, int h){ if ((w <= 0) || (h <= 0)) return -1; return w * h * bytesperpixel (gc);}static int fillbox (GAL_GC gc, int x, int y, int w, int h, gal_pixel pixel){ if ((w <= 0) || (h <= 0)) return -1; BLOCK_DRAW_SEM; if (_COOR_TRANS && gc.psd == cur_gfx->phygc.psd) rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (native_gen_clipbox (gc.psd, &x, &y, &w, &h) == CLIP_INVISIBLE) goto ret; gc.psd->FillRect (gc.psd, x, y, w, h, pixel) ; if (gc.psd->UpdateRect) gc.psd->UpdateRect (gc.psd, x, y, x + w, y + h);ret: UNBLOCK_DRAW_SEM; return 0;}static void putbox_helper (GAL_GC gc, int x, int y, int w, int h, void* buf, int pitch){ int bpp = bytesperpixel (gc); gal_uint8 *tmpptr= (gal_uint8*) buf; rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?1:0); if ( y < 0 ) { h += y; tmpptr -= y * pitch; y = 0; } if ( x < 0 ) { w += x; tmpptr -= bpp * x; x = 0; } if ( x + w -1 >= gc.psd->yres) w = gc.psd->yres - x; if ( y + h -1 >= gc.psd->xres) h = gc.psd->xres - y; rotatepoint (&x, &y, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (_ROT_DIR_CCW) { while (h > 0) { gc.psd->PutBox (gc.psd, x, y, 1, w, tmpptr); tmpptr += pitch; x--; h--; } } else { //char* reversi = alloca (w * bpp); char* reversi = malloc (w * bpp); y -= w - 1; while (h > 0) { reverse_buff (reversi, tmpptr, w, bpp); gc.psd->PutBox (gc.psd, x, y, 1, w, reversi); tmpptr += pitch; x++; h--; } free (reversi); }}static int putbox_wrapper (GAL_GC gc, int x, int y, int w, int h, void* buf, int pitch){ if ((w <= 0) || (h <= 0)) return -1; BLOCK_DRAW_SEM; if (_COOR_TRANS && gc.psd == cur_gfx->phygc.psd) { rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (gc.psd->doclip) { if ((x + w - 1 < gc.psd->clipminx) || (x >= gc.psd->clipmaxx)) goto inv_args; if ((y + h - 1 < gc.psd->clipminy) || (y >= gc.psd->clipmaxy)) goto inv_args; } else { if ((x + w - 1 < 0) || (x >= gc.psd->xres)) goto inv_args; if ((y + h - 1 < 0) || (y >= gc.psd->yres)) goto inv_args; } putbox_helper (gc, x, y, w, h, buf, pitch); } else { if (gc.psd->doclip) { if ((x + w - 1 < gc.psd->clipminx) || (x >= gc.psd->clipmaxx)) goto inv_args; if ((y + h - 1 < gc.psd->clipminy) || (y >= gc.psd->clipmaxy)) goto inv_args; } else { if ((x + w - 1 < 0) || (x >= gc.psd->xres)) goto inv_args; if ((y + h - 1 < 0) || (y >= gc.psd->yres)) goto inv_args; } gc.psd->PutBox (gc.psd, x, y, w, h, buf); /* ignore pitch */ } if (gc.psd->UpdateRect) gc.psd->UpdateRect (gc.psd, x, y, x + w, y + h);inv_args: UNBLOCK_DRAW_SEM; return 0;}static int putbox (GAL_GC gc, int x, int y, int w, int h, void* buf){ return putbox_wrapper (gc, x, y, w, h, buf, w * bytesperpixel (gc));}static int putboxmask ( GAL_GC gc, int x, int y, int w, int h, void* buf, gal_pixel cxx){ int oldw = w, bpp = 0; gal_uint8 *tmpptr= (gal_uint8*) buf; if ((w <= 0) || (h <= 0)) return -1; BLOCK_DRAW_SEM; if (_COOR_TRANS && gc.psd == cur_gfx->phygc.psd) { rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (gc.psd->doclip) { if ((x + w - 1 < gc.psd->clipminx) || (x >= gc.psd->clipmaxx)) goto inv_args; if ((y + h - 1 < gc.psd->clipminy) || (y >= gc.psd->clipmaxy)) goto inv_args; } else { if ((x + w - 1 < 0) || (x >= gc.psd->xres)) goto inv_args; if ((y + h - 1 < 0) || (y >= gc.psd->yres)) goto inv_args; } rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?1:0); bpp = bytesperpixel (gc); if ( y < 0 ) { h += y; tmpptr -= y * bpp * w; y = 0; } if ( x < 0 ) { w += x; tmpptr -= bpp * x; x = 0; } if ( x + w -1 >= gc.psd->yres) w = gc.psd->yres - x ; if ( y + h -1 >= gc.psd->xres) h = gc.psd->xres - y ; rotatepoint (&x, &y, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (_ROT_DIR_CCW) { while (h > 0) { gc.psd->PutBoxMask (gc.psd, x, y, 1, w, tmpptr, cxx); tmpptr += bpp * oldw; x--; h--; } } else { //char* reversi = alloca (w * bpp); char* reversi = malloc (w * bpp); y -= w - 1; while (h > 0) { reverse_buff (reversi, tmpptr, w, bpp); gc.psd->PutBoxMask (gc.psd, x, y, 1, w, reversi, cxx); tmpptr += bpp * oldw; x++; h--; } free (reversi); } } else { if (gc.psd->doclip) { if ((x + w - 1 < gc.psd->clipminx) || (x >= gc.psd->clipmaxx)) goto inv_args; if ((y + h - 1 < gc.psd->clipminy) || (y >= gc.psd->clipmaxy)) goto inv_args; } else { if ((x + w - 1 < 0) || (x >= gc.psd->xres)) goto inv_args; if ((y + h - 1 < 0) || (y >= gc.psd->yres)) goto inv_args; } gc.psd->PutBoxMask (gc.psd, x, y, w, h, buf, cxx); } if (gc.psd->UpdateRect) gc.psd->UpdateRect (gc.psd, x, y, x + w, y + h);inv_args: UNBLOCK_DRAW_SEM; return 0;}static void getbox_helper (GAL_GC gc, int x, int y, int w, int h, void* buf, int pitch){ int bpp = bytesperpixel (gc); gal_uint8 *tmpptr= (gal_uint8*) buf; if ( y < 0 ) { h += y; tmpptr -= y * pitch; y = 0; } if ( x < 0 ) { w += x; tmpptr -= bpp * x; x = 0; } if ( x + w -1 >= gc.psd->yres) w = gc.psd->yres - x ; if ( y + h -1 >= gc.psd->xres) h = gc.psd->xres - y ; rotatepoint (&x, &y, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); if (_ROT_DIR_CCW) { while (h > 0) { gc.psd->GetBox (gc.psd, x, y, 1, w, tmpptr); tmpptr += pitch; x--; h--; } } else { //char* reversi = alloca (w * bpp); char* reversi = malloc (w * bpp); y -= w - 1; while (h > 0) { gc.psd->GetBox (gc.psd, x, y, 1, w, reversi); reverse_buff (tmpptr, reversi, w, bpp); tmpptr += pitch; x++; h--; } free (reversi); }}static int getbox_wrapper (GAL_GC gc, int x, int y, int w, int h, void* buf, int pitch){ if ((w <= 0) || (h <= 0)) return -1; if (_COOR_TRANS && gc.psd == cur_gfx->phygc.psd) { if ((x + w - 1 < 0) || (x >= gc.psd->yres)) return -1; if ((y + h - 1 < 0) || (y >= gc.psd->xres)) return -1; getbox_helper (gc, x, y, w, h, buf, pitch); } else { if ((x + w - 1 < 0) || (x >= gc.psd->xres)) return -1; if ((y + h - 1 < 0) || (y >= gc.psd->yres)) return -1; gc.psd->GetBox (gc.psd, x, y, w, h, buf); /* ignore pitch */ } return 0;}static int getbox (GAL_GC gc, int x, int y, int w, int h, void* buf){ return getbox_wrapper (gc, x, y, w, h, buf, w * bytesperpixel (gc));}static int scalebox (GAL_GC gc, int sw, int sh, void* srcbuf, int dw, int dh, void* dstbuf){ return native_gen_scalebox (gc.psd, sw, sh, srcbuf, dw, dh, dstbuf);}static int copybox (GAL_GC gc, int x, int y, int w, int h, int nx, int ny){ int org_w = w, org_h = h; if ((w <= 0) || (h <= 0)) return -1; if (_COOR_TRANS && gc.psd == cur_gfx->phygc.psd) { rotaterect (&x, &y, &w, &h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); rotaterect (&nx, &ny, &org_w, &org_h, _ROT_DIR_CCW?gc.psd->xres:gc.psd->yres, _ROT_DIR_CCW?0:1); } if ((x >= gc.psd->xres) || (x + w - 1 < 0)) return -1; if ((y >= gc.psd->yres) || (y + h - 1 < 0)) return -1; if (x < 0) { nx -= x; w += x; x = 0; } if (y < 0) { ny -= y; h += y; y = 0; } if (x + w - 1 >= gc.psd->xres) w = gc.psd->xres - x; if (y + h - 1 >= gc.psd->yres) h = gc.psd->yres - y; BLOCK_DRAW_SEM; //dst do clip if (gc.psd->doclip) {?? 快捷鍵說明
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