//---------------------------------------------------------------------------
void __fastcall TMainForm::UpdatePanel2()
{
unsigned char red,green,blue;
try
{
red = StrToInt(this->LabeledEdit1->Text);
green = StrToInt(this->LabeledEdit2->Text);
blue = StrToInt(this->LabeledEdit3->Text);
}
catch(...)
{
return;
}
this->Panel2->Color = (TColor)RGB(red, green, blue);
TPantoneColorEntry pe = RGB2Pantone(red, green, blue);
double d = sqrt((red - pe.Red)*(red - pe.Red) +
(green - pe.Green)*(green - pe.Green) +
(blue - pe.Blue)*(blue - pe.Blue));
Label21->Caption = "d = " + FormatFloat(".000", d);
CalculateColors();
}
static MagickBooleanType ReadDXT1(Image *image, DDSInfo *dds_info)
{
DDSColors
colors;
ExceptionInfo
*exception;
PixelPacket
*q;
register ssize_t
i,
x;
size_t
bits;
ssize_t
j,
y;
unsigned char
code;
unsigned short
c0,
c1;
exception=(&image->exception);
for (y = 0; y < (ssize_t) dds_info->height; y += 4)
{
for (x = 0; x < (ssize_t) dds_info->width; x += 4)
{
/* Get 4x4 patch of pixels to write on */
q = QueueAuthenticPixels(image, x, y, Min(4, dds_info->width - x),
Min(4, dds_info->height - y),exception);
if (q == (PixelPacket *) NULL)
return MagickFalse;
/* Read 8 bytes of data from the image */
c0 = ReadBlobLSBShort(image);
c1 = ReadBlobLSBShort(image);
bits = ReadBlobLSBLong(image);
CalculateColors(c0, c1, &colors, MagickFalse);
/* Write the pixels */
for (j = 0; j < 4; j++)
{
for (i = 0; i < 4; i++)
{
if ((x + i) < (ssize_t) dds_info->width && (y + j) < (ssize_t) dds_info->height)
{
code = (unsigned char) ((bits >> ((j*4+i)*2)) & 0x3);
SetPixelRed(q,ScaleCharToQuantum(colors.r[code]));
SetPixelGreen(q,ScaleCharToQuantum(colors.g[code]));
SetPixelBlue(q,ScaleCharToQuantum(colors.b[code]));
SetPixelOpacity(q,ScaleCharToQuantum(colors.a[code]));
if (colors.a[code] && image->matte == MagickFalse)
/* Correct matte */
image->matte = MagickTrue;
q++;
}
}
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
return MagickFalse;
}
}
static MagickBooleanType ReadDXT1(Image *image, DDSInfo *dds_info)
{
DDSColors
colors;
long
j,
y;
PixelPacket
*q;
register long
i,
x;
unsigned char
code;
unsigned short
c0,
c1;
unsigned long
bits;
for (y = 0; y < (long) dds_info->height; y += 4)
{
for (x = 0; x < (long) dds_info->width; x += 4)
{
/* Get 4x4 patch of pixels to write on */
q = SetImagePixels(image, x, y, Min(4, dds_info->width - x),
Min(4, dds_info->height - y));
if (q == (PixelPacket *) NULL)
return MagickFalse;
/* Read 8 bytes of data from the image */
c0 = ReadBlobLSBShort(image);
c1 = ReadBlobLSBShort(image);
bits = ReadBlobLSBLong(image);
CalculateColors(c0, c1, &colors, MagickFalse);
/* Write the pixels */
for (j = 0; j < 4; j++)
{
for (i = 0; i < 4; i++)
{
if ((x + i) < (long) dds_info->width && (y + j) < (long) dds_info->height)
{
code = (unsigned char) ((bits >> ((j*4+i)*2)) & 0x3);
q->red = ScaleCharToQuantum( colors.r[code] );
q->green = ScaleCharToQuantum( colors.g[code] );
q->blue = ScaleCharToQuantum( colors.b[code] );
q->opacity = ScaleCharToQuantum( colors.a[code] );
if (colors.a[code] && image->matte == MagickFalse)
/* Correct matte */
image->matte = MagickTrue;
q++;
}
}
}
if (SyncImagePixels(image) == MagickFalse)
return MagickFalse;
}
}
