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| author | danielgarcia@gmail.com <danielgarcia@gmail.com@4ad4ec5c-605d-bd5c-5796-512c9b60011b> | 2013-11-01 23:11:59 +0400 |
|---|---|---|
| committer | danielgarcia@gmail.com <danielgarcia@gmail.com@4ad4ec5c-605d-bd5c-5796-512c9b60011b> | 2013-11-01 23:11:59 +0400 |
| commit | ece5e1bcf147fd812c8c29898813d3f0341eae88 (patch) | |
| tree | 81be286e61097b9a4e5649de29af2f3fcc139d80 /clockless.h | |
| parent | d3d9a516561788d66028f4c52756e2de60cb75b0 (diff) | |
Make inline scaling for clockless chipsets work on ATTiny
Diffstat (limited to 'clockless.h')
| -rw-r--r-- | clockless.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/clockless.h b/clockless.h index 26ff8262..55a88f10 100644 --- a/clockless.h +++ b/clockless.h @@ -31,6 +31,14 @@ # endif #endif +// Scaling macro choice +#if defined(LIB8_ATTINY) +# define INLINE_SCALE(B, SCALE) delaycycles<3> +# warning "No hardware multiply, inline brightness scaling disabled" +#else +# define INLINE_SCALE(B, SCALE) B = scale8_LEAVING_R1_DIRTY(B, SCALE) +#endif + ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // // Base template for clockless controllers. These controllers have 3 control points in their cycle for each bit. The first point @@ -181,14 +189,14 @@ public: write8Bits(port, hi, lo, b); b = ((ADVANCE)?data:rgbdata)[SKIP + RGB_BYTE1(RGB_ORDER)]; - b = scale8(b, scale); + INLINE_SCALE(b, scale); delaycycles<T3 - 5>(); // 1 store, 2 load, 1 mul, 1 shift, // Write second byte write8Bits(port, hi, lo, b); b = ((ADVANCE)?data:rgbdata)[SKIP + RGB_BYTE2(RGB_ORDER)]; - b = scale8(b, scale); + INLINE_SCALE(b, scale); data += 3 + SKIP; if((RGB_ORDER & 0070) == 0) { @@ -201,7 +209,7 @@ public: write8Bits(port, hi, lo, b); b = ((ADVANCE)?data:rgbdata)[SKIP + RGB_BYTE0(RGB_ORDER)]; - b = scale8(b, scale); + INLINE_SCALE(b, scale); delaycycles<T3 - 11>(); // 1 store, 2 load (with increment), 1 mul, 1 shift, 1 cmp, 1 branch backwards, 1 movim }; @@ -253,7 +261,7 @@ public: c = rgbdata[SKIP + RGB_BYTE1(RGB_ORDER)]; delaycycles<1>(); } - c = scale8_LEAVING_R1_DIRTY(c, scale); + INLINE_SCALE(c, scale); bitSetLast<5, 1>(port, hi, lo, b); for(register byte x=5; x; x--) { @@ -273,7 +281,7 @@ public: d = rgbdata[SKIP + RGB_BYTE2(RGB_ORDER)]; delaycycles<1>(); } - d = scale8_LEAVING_R1_DIRTY(d, scale); + INLINE_SCALE(d, scale); bitSetLast<5, 1>(port, hi, lo, c); for(register byte x=5; x; x--) { @@ -292,7 +300,7 @@ public: b = rgbdata[SKIP + RGB_BYTE0(RGB_ORDER)]; delaycycles<1>(); } - b = scale8_LEAVING_R1_DIRTY(b, scale); + INLINE_SCALE(b, scale); bitSetLast<5, 6>(port, hi, lo, d); } cleanup_R1(); |