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windowscodecs: Add support for generating WICBitmapPaletteTypeFixedHalftone216 palette.

This commit is contained in:
Dmitry Timoshkov 2012-07-23 12:45:53 +09:00 committed by Alexandre Julliard
parent 97464c508f
commit 87b23de9bb
2 changed files with 60 additions and 0 deletions
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33
dlls/windowscodecs/palette.c
View File

@ -232,6 +232,34 @@ static WICColor *generate_halftone125_palette(UINT *count)
return entries;
}
static WICColor *generate_halftone216_palette(UINT *count)
{
WICColor *entries;
UINT i;
*count = 224;
entries = HeapAlloc(GetProcessHeap(), 0, 224 * sizeof(WICColor));
if (!entries) return NULL;
for (i = 0; i < 216; i++)
{
static const BYTE halftone_values[6] = { 0x00,0x33,0x66,0x99,0xcc,0xff };
entries[i] = 0xff000000;
entries[i] |= halftone_values[i%6];
entries[i] |= halftone_values[(i/6)%6] << 8;
entries[i] |= halftone_values[(i/36)%6] << 16;
}
for (i = 216; i < 224; i++)
{
static const DWORD halftone[8] = { 0xc0c0c0, 0x808080, 0x800000, 0x008000,
0x000080, 0x808000, 0x800080, 0x008080 };
entries[i] = 0xff000000;
entries[i] |= halftone[i-216];
}
return entries;
}
static WICColor *generate_halftone256_palette(UINT *count)
{
WICColor *entries;
@ -312,6 +340,11 @@ static HRESULT WINAPI PaletteImpl_InitializePredefined(IWICPalette *iface,
if (!colors) return E_OUTOFMEMORY;
break;
case WICBitmapPaletteTypeFixedHalftone216:
colors = generate_halftone216_palette(&count);
if (!colors) return E_OUTOFMEMORY;
break;
case WICBitmapPaletteTypeFixedHalftone256:
colors = generate_halftone256_palette(&count);
if (!colors) return E_OUTOFMEMORY;

27
dlls/windowscodecs/tests/palette.c
View File

@ -259,6 +259,30 @@ static void generate_halftone125_palette(DWORD *entries, UINT count)
entries[i] = 0xffc0c0c0;
}
static void generate_halftone216_palette(DWORD *entries, UINT count)
{
static const BYTE halftone_values[6] = { 0x00,0x33,0x66,0x99,0xcc,0xff };
UINT i;
assert(count == 224);
for (i = 0; i < 216; i++)
{
entries[i] = 0xff000000;
entries[i] |= halftone_values[i%6];
entries[i] |= halftone_values[(i/6)%6] << 8;
entries[i] |= halftone_values[(i/36)%6] << 16;
}
for (i = 216; i < 224; i++)
{
static const DWORD halftone[8] = { 0xc0c0c0, 0x808080, 0x800000, 0x008000,
0x000080, 0x808000, 0x800080, 0x008080 };
entries[i] = 0xff000000;
entries[i] |= halftone[i-216];
}
}
static void generate_halftone256_palette(DWORD *entries, UINT count)
{
static const BYTE halftone_values_b[4] = { 0x00,0x55,0xaa,0xff };
@ -295,6 +319,7 @@ static void test_predefined_palette(void)
{ WICBitmapPaletteTypeFixedHalftone27, 0, 0, 28, { 0 } },
{ WICBitmapPaletteTypeFixedHalftone64, 0, 0, 72, { 0 } },
{ WICBitmapPaletteTypeFixedHalftone125, 0, 0, 126, { 0 } },
{ WICBitmapPaletteTypeFixedHalftone216, 0, 0, 224, { 0 } },
{ WICBitmapPaletteTypeFixedHalftone256, 0, 0, 256, { 0 } },
};
IWICImagingFactory *factory;
@ -358,6 +383,8 @@ static void test_predefined_palette(void)
generate_halftone64_palette(td[i].color, td[i].count);
else if (td[i].type == WICBitmapPaletteTypeFixedHalftone125)
generate_halftone125_palette(td[i].color, td[i].count);
else if (td[i].type == WICBitmapPaletteTypeFixedHalftone216)
generate_halftone216_palette(td[i].color, td[i].count);
else if (td[i].type == WICBitmapPaletteTypeFixedHalftone256)
generate_halftone256_palette(td[i].color, td[i].count);