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cleanup

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svn-id: r21964
This commit is contained in:
Max Horn 2006-04-17 09:35:42 +00:00
parent 4683b427ee
commit d27396d51d
1 changed files with 29 additions and 28 deletions
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57
graphics/scaler.cpp
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@ -75,33 +75,11 @@ uint LUT16to32[65536];
}
#endif
static const uint16 dotmatrix_565[16] = {
0x01E0, 0x0007, 0x3800, 0x0000,
0x39E7, 0x0000, 0x39E7, 0x0000,
0x3800, 0x0000, 0x01E0, 0x0007,
0x39E7, 0x0000, 0x39E7, 0x0000
};
static const uint16 dotmatrix_555[16] = {
0x00E0, 0x0007, 0x1C00, 0x0000,
0x1CE7, 0x0000, 0x1CE7, 0x0000,
0x1C00, 0x0000, 0x00E0, 0x0007,
0x1CE7, 0x0000, 0x1CE7, 0x0000
};
static const uint16 *dotmatrix;
static void InitLUT(uint32 BitFormat);
void InitScalers(uint32 BitFormat) {
if (BitFormat == 565) {
dotmatrix = dotmatrix_565;
} else if (BitFormat == 555) {
dotmatrix = dotmatrix_555;
} else {
error("Unknown bit format %d", BitFormat);
}
gBitFormat = BitFormat;
InitLUT(BitFormat);
InitLUT(gBitFormat);
}
void InitLUT(uint32 BitFormat) {
@ -288,7 +266,20 @@ void TV2xTemplate(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 ds
}
MAKE_WRAPPER(TV2x)
static inline uint16 DOT_16(uint16 c, int j, int i) {
static const uint16 dotmatrix_565[16] = {
0x01E0, 0x0007, 0x3800, 0x0000,
0x39E7, 0x0000, 0x39E7, 0x0000,
0x3800, 0x0000, 0x01E0, 0x0007,
0x39E7, 0x0000, 0x39E7, 0x0000
};
static const uint16 dotmatrix_555[16] = {
0x00E0, 0x0007, 0x1C00, 0x0000,
0x1CE7, 0x0000, 0x1CE7, 0x0000,
0x1C00, 0x0000, 0x00E0, 0x0007,
0x1CE7, 0x0000, 0x1CE7, 0x0000
};
static inline uint16 DOT_16(const uint16 *dotmatrix, uint16 c, int j, int i) {
return c - ((c >> 2) & *(dotmatrix + ((j & 3) << 2) + (i & 3)));
}
@ -300,6 +291,16 @@ static inline uint16 DOT_16(uint16 c, int j, int i) {
void DotMatrix(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
int width, int height) {
const uint16 *dotmatrix;
if (gBitFormat == 565) {
dotmatrix = dotmatrix_565;
} else if (gBitFormat == 555) {
dotmatrix = dotmatrix_555;
} else {
error("Unknown bit format %d", gBitFormat);
}
const uint32 nextlineSrc = srcPitch / sizeof(uint16);
const uint16 *p = (const uint16 *)srcPtr;
@ -309,10 +310,10 @@ void DotMatrix(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPi
for (int j = 0, jj = 0; j < height; ++j, jj += 2) {
for (int i = 0, ii = 0; i < width; ++i, ii += 2) {
uint16 c = *(p + i);
*(q + ii) = DOT_16(c, jj, ii);
*(q + ii + 1) = DOT_16(c, jj, ii + 1);
*(q + ii + nextlineDst) = DOT_16(c, jj + 1, ii);
*(q + ii + nextlineDst + 1) = DOT_16(c, jj + 1, ii + 1);
*(q + ii) = DOT_16(dotmatrix, c, jj, ii);
*(q + ii + 1) = DOT_16(dotmatrix, c, jj, ii + 1);
*(q + ii + nextlineDst) = DOT_16(dotmatrix, c, jj + 1, ii);
*(q + ii + nextlineDst + 1) = DOT_16(dotmatrix, c, jj + 1, ii + 1);
}
p += nextlineSrc;
q += nextlineDst << 1;