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/* Check for overflow or underflow on green value */
if (green > 0xff) green = 0xff;
if (green < 0x00) green = 0x00;
/* Generate the blue dither value */
blue += (dither_blue[y_dither_table][x_dither_table]<<1);
/* Check for overflow or underflow on blue value */
if (blue > 0xff) blue = 0xff;
if (blue < 0x00) blue = 0x00;
/* Generate the pixel value by "or"ing the values together */
pixel = ((red & 0xE0) | ((green & 0xE0) >> 3) | ((blue & 0xC0) >> 6));
return(pixel);
}
Internal Color Graphics, Internal Grayscale Graphics, CRX, GRX, and Dual-
CRX Device-Dependent Information
Supported Visuals
Only one visual is supported.
For color displays:
• Class PseudoColor Depth 8 -
supports DBE and MBX hardware double-buffering (CRX, Dual CRX)
supports DBE and MBX software double-buffering (Internal Color Graphics)
For grayscale displays:
• Class GrayScale Depth 8 -
supports DBE and MBX hardware double-buffering (GRX)
supports DBE and MBX software double-buffering (Internal GrayScale Graphics)
The "layer" and "transparent" default visual options are not supported.
Supported Screen Options
The following Screen Options are supported:
• SwapBuffersOnVBlank
• 3BitCenterColor (Internal Color Graphics only)
• EnableIncludeInferiorsFix
Graphics Administration Guide for HP-UX 10.20
Page 54