1910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger#include "Test.h" 2910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger#include "TestClassDef.h" 3910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 4910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger#include "SkColorPriv.h" 5910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 6910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger#define ASSERT(expr) REPORTER_ASSERT(r, expr) 7910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 8910f694aefb0b671dd8522a9afe9b6be645701c1Derek SollenbergerDEF_TEST(Splay, r) { 9910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const SkPMColor color = 0xA1B2C3D4; 10910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 11910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger uint32_t ag, rb; 12910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger SkSplay(color, &ag, &rb); 13910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(ag == 0x00A100C3); 14910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(rb == 0x00B200D4); 15910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(SkUnsplay(ag << 8, rb << 8) == color); 16910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 17910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const uint64_t agrb = SkSplay(color); 18910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(agrb == 0x00A100C300B200D4ULL); 19910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(SkUnsplay(agrb<<8) == color); 20910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger} 21910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 22910f694aefb0b671dd8522a9afe9b6be645701c1Derek SollenbergerDEF_TEST(FourByteInterp, r) { 23910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const SkPMColor src = 0xAB998877, dst = 0x66334455; 24910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger for (unsigned scale = 0; scale <= 256; scale++) { 25910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(SkFourByteInterp256(src, dst, scale) == SkFastFourByteInterp256(src, dst, scale)); 26910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger } 27910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 28910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger for (unsigned scale = 0; scale < 256; scale++) { 29910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger // SkFourByteInterp and SkFastFourByteInterp convert from [0, 255] to [0, 256] differently. 30910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger // In particular, slow may end up a little too high (weirdly, fast is more accurate). 31910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const SkPMColor slow = SkFourByteInterp(src, dst, scale); 32910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const SkPMColor fast = SkFastFourByteInterp(src, dst, scale); 33910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 34910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const int deltaA = SkGetPackedA32(slow) - SkGetPackedA32(fast); 35910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const int deltaR = SkGetPackedR32(slow) - SkGetPackedR32(fast); 36910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const int deltaG = SkGetPackedG32(slow) - SkGetPackedG32(fast); 37910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger const int deltaB = SkGetPackedB32(slow) - SkGetPackedB32(fast); 38910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger 39910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(deltaA == 0 || deltaA == 1); 40910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(deltaR == 0 || deltaR == 1); 41910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(deltaG == 0 || deltaG == 1); 42910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger ASSERT(deltaB == 0 || deltaB == 1); 43910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger } 44910f694aefb0b671dd8522a9afe9b6be645701c1Derek Sollenberger} 45