Mercurial > hg > dmlib

comparison lib64gfx.c @ 535:ab8d9696225c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add helper macros and use them to set the loading address while encoding.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 22 Nov 2012 22:15:34 +0200
parents fbfdc9e4fe2b
children 18fc2890ba4b
comparison
equal deleted inserted replaced
534:fbfdc9e4fe2b 535:ab8d9696225c
55 1, 55 1,
56 C64_SCR_EXTRADATA, 56 C64_SCR_EXTRADATA,
57 }; 57 };
58 58
59 59
60 #define DM_GET_ADDR_LO(addr) (addr & 0xff)
61 #define DM_GET_ADDR_HI(addr) ((addr >> 8) & 0xff)
62
60 63
61 static BOOL dmCompareAddr16(const Uint8 *buf, const size_t offs, const Uint16 addr) 64 static BOOL dmCompareAddr16(const Uint8 *buf, const size_t offs, const Uint16 addr)
62 { 65 {
63 return (buf[offs] == (addr & 0xff)) && (buf[offs + 1] == ((addr >> 8) & 0xff)); 66 return buf[offs] == DM_GET_ADDR_LO(addr) &&
67 buf[offs + 1] == DM_GET_ADDR_HI(addr);
64 } 68 }
65 69
66 70
67 int dmC64ConvertCSData(DMImage *img, 71 int dmC64ConvertCSData(DMImage *img,
68 int xoffs, int yoffs, const Uint8 *buf, 72 int xoffs, int yoffs, const Uint8 *buf,
666 case DT_ENC_FUNCTION: 670 case DT_ENC_FUNCTION:
667 break; 671 break;
668 } 672 }
669 } 673 }
670 674
675 buf[0] = DM_GET_ADDR_LO(fmt->addr);
676 buf[1] = DM_GET_ADDR_HI(fmt->addr);
677
678 *pbuf = buf;
671 return DMERR_OK; 679 return DMERR_OK;
672 680
673 error: 681 error:
674 dmFree(*pbuf); 682 dmFree(*pbuf);
675 *pbuf = NULL; 683 *pbuf = NULL;