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Diffstat (limited to 'src/lg_blit.h')
| -rw-r--r-- | src/lg_blit.h | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/lg_blit.h b/src/lg_blit.h new file mode 100644 index 0000000..b5edd90 --- /dev/null +++ b/src/lg_blit.h @@ -0,0 +1,179 @@ +#ifndef __LG_BLIT_H +#define __LG_BLIT_H + +/* + * bitBLT acceleration for CL-GD546x -- The Laguna family + * + * lg_xaa.h + * + * (c) 1996,1998 Corin Anderson. + * corina@the4cs.com + * Tukwila, WA + * + * This header file draws much from the file cir_blitLG.h in version 3.3.3 + * of XFree86. + */ + +/* This header file defines the necessary structures, constants, and + variables for using the bitBLT engine on a Laguna family graphics + accelerator. */ + + +enum { /* Offsets into MMIO space for bitBLT regs */ + STATUS = 0x0400, + OP0_opRDRAM = 0x0520, + OP1_opRDRAM = 0x0540, + OP2_opRDRAM = 0x0560, + OP0_opMRDRAM = 0x0524, + OP1_opMRDRAM = 0x0544, + OP2_opMRDRAM = 0x0564, + OP0_opSRAM = 0x0528, + OP1_opSRAM = 0x0548, + OP2_opSRAM = 0x0568, + OP1_opMSRAM = 0x054A, + OP2_opMSRAM = 0x056A, + DRAWDEF = 0x0584, + BLTDEF = 0x0586, + BLTEXT_EX = 0x0700, + MBLTEXT_EX = 0x0720, + MONOQW = 0x0588, + QFREE = 0x0404, + PATOFF = 0x052A, + HOSTDATA = 0x0800, + OP_opBGCOLOR = 0x05E4, + OP_opFGCOLOR = 0x05E0, + bltCONTROL = 0x0402, + BITMASK = 0x05E8 +}; + +enum { HOSTDATASIZE = 2048 }; /* The HOSTDATA port is 2048 BYTES */ + +enum { /* OR these together to form a bitBLT mode */ + HOST2SCR = 0x1120, /* CPU/Screen transfer modes */ + SCR2HOST = 0x2010, + HOST2PAT = 0x1102, + HOST2SRAM2 = 0x6020, /* CPU to SRAM2 transfer */ + + SCR2SCR = 0x1110, /* Screen/Screen transfers */ + COLORSRC = 0x0000, /* Source is color data */ + MONOSRC = 0x0040, /* Source is mono data (color expansion) */ + COLORTRANS = 0x0001, /* Transparent screen/screen transfer */ + MONOTRANS = 0x0005, /* Transparent screen/screen color expansion */ + COLORFILL = 0x0070, /* Solid color fill mode */ + SRAM1SCR2SCR = 0x1180, /* Pattern fill, source from SRAM1 */ + + PAT2SCR = 0x1109, /* Pattern/Screen transfers */ + COLORPAT = 0x0000, /* Pattern is color data */ + MONOPAT = 0x0004, /* Pattern is mono data (color expansion) */ + SRAM2PAT2SCR = 0x1108, /* SRAM2 is pattern source */ + + PATeqSRC = 0x0800, /* The Pattern and Source operands are the same */ + /* Advice from Corey: don't ever try to use + this option! 8) There's a documented bug + with it on the '62, and, well, I have + empirical evidence that either the bug's + still around, even in the '64 and the '65. + It's a performance option, anyway, so not + using it should be okay. */ + + + BLITUP = 0x8000 /* The blit is proceeding from bottom to top */ +}; + +enum { /* Select transparency compare */ + TRANSBG = 0x0100, + TRANSFG = 0x0300, + TRANSEQ = 0x0100, + TRANSNE = 0x0300, + TRANSNONE = 0x0000 +}; + +#define LgREADY() ((memrb(STATUS) & 0x07) == 0x00) + +#define LgSETROP(rop) memww(DRAWDEF,rop); + +#define LgSETTRANSPARENCY(trans) \ + memww(DRAWDEF,(trans) | (memrw(DRAWDEF) & 0x00FF)); + +#define LgSETMODE(mode) memww(BLTDEF,mode); + +#define LgSETDSTXY(X, Y) memwl(OP0_opRDRAM, (((Y) << 16) | (X))); + +#define LgSETSRCXY(X, Y) memwl(OP1_opRDRAM, (((Y) << 16) | (X))); + +#define LgSETPATXY(X, Y) memwl(OP2_opRDRAM, (((Y) << 16) | (X))); + +#define LgSETTRANSMASK(X, Y) LgSETPATXY(X, Y) + +#define LgSETSRAMDST(offset) memww(OP0_opSRAM, offset); + +/* was this a bug? it read OP2_opSRAM */ +#define LgSETSRAM1OFFSET(offset) memww(OP1_opSRAM, offset); + +#define LgSETSRAM2OFFSET(offset) memww(OP2_opSRAM, offset); + +#define LgSETMSRAM1OFFSET(offset) memww(OP1_opMSRAM, offset); + +#define LgSETMSRAM2OFFSET(offset) memww(OP2_opMSRAM, offset); + +#define LgSETMDSTXY(X, Y) memwl(OP0_opMRDRAM, (((Y) << 16) | (X))); + +#define LgSETMSRCXY(X, Y) memwl(OP1_opMRDRAM, (((Y) << 16) | (X))); + +#define LgSETMPATXY(X, Y) memwl(OP2_opMRDRAM, (((Y) << 16) | (X))); + +#define LgSETMTRANSMASK(X, Y) LgSETMPATXY(X, Y) + +#define LgSETPHASE0(phase) memwl( OP0_opRDRAM, phase); + +#define LgSETPHASE1(phase) memwl(OP1_opRDRAM, phase); + +#define LgSETPHASE2(phase) memwl( OP2_opRDRAM, phase); + +#define LgSETMPHASE0(phase) memwl(OP0_opMRDRAM, phase); + +#define LgSETMPHASE1(phase) memwl(OP1_opMRDRAM, phase); + +#define LgSETEXTENTS(width, height) \ + memwl(BLTEXT_EX, (((height) << 16)|(width))); + +#if 0 +#define LgSETMEXTENTS(width, height) \ + memwl(MBLTEXT_EX, (((height) << 16)|(width))); +#else +/* For monochrome (byte) blits, we need to set how many QWORDs of data + encompass the X extent. Write this piece of data into MONOQW. */ +#define LgSETMEXTENTS(width, height) \ + { \ + memww(MONOQW, ((width + 7) >> 3)); \ + memwl(MBLTEXT_EX, (((height) << 16)|(width))); \ + } + +#define LgSETMEXTENTSNOMONOQW(width, height) \ + memwl(MBLTEXT_EX, (((height) << 16)|(width))); + +/* + memww(MBLTEXT_EX, height); + memww(MBLTEXT_EX + 2, width); + */ +#endif + +#define LgHOSTDATAWRITE(data) memwl(HOSTDATA, data); + +#define LgHOSTDATAREAD() (memrl(HOSTDATA)) + +#define LgSETBACKGROUND(color) memwl(OP_opBGCOLOR, color); + +#define LgSETFOREGROUND(color) memwl(OP_opFGCOLOR, color); + +#define LgSETPATOFF(xoff, yoff) memww(PATOFF, (((yoff) << 8) | (xoff))); + +#define LgSETSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL | 0x0400)); + +#define LgCLEARSWIZZLE() memww(bltCONTROL, memrw(bltCONTROL & ~0x0400)); + +#define LgSETBITMASK(m) memwl(BITMASK, m); + + + +#endif /* __LG_BLIT_H */ |