Palette Question
July 12, 2002 09:52 PM
Ok I have a primary surface with an attached backbuffer, and offscreen surface containing a bitmap, and a ''supposedly'' set Palette. I set all the entries to 0 like this cuz I wanted to see if it would work right:
PALETTEENTRY pe[256];
for(i=0;i<256;i++){
pe.peBlue=pe.peRed=pe.peGreen=0;
pe.peFlags=PC_NOCOLLAPSE;
}
Im assuming the above sets every entry to black. Then I attached a created palette to my primary surface. I blitted my bitmap to the backbuffer and flipped and….
it wasn''t all black. The palette didn''t work. What am I doing wrong? I have it in 8-bit… </i>
127
July 12, 2002 11:57 PM
I just quickly read throguh a section of the DX documentation today, and it said something and I think that all surfaces have their own palettes. So when you set a palette to the back buffer, it retains that information. And when you flip pages, the palette for the primary surface is the one that is used. Try setting the primary surface palette to black and see if that works.
---Will DDR for food.
July 13, 2002 12:13 PM
Did you read all of my post???? I did attach it to the primary surface.
127
July 14, 2002 12:07 AM
What I''m geting is this: You attached a black palette to the offscreen surface, loaded a bitmap, then attached another palette to the primar surface. Or is it just one palette you have? Perhaps you are loading the palette of the bitmap instead, and leaving it unchanged. Maybe you should change the entries after you load the bitmap. I''m scraping the bottom of the barrel of ideas with a plastic sandcastle shovel. (Running out of ideas)
---Will DDR for food.
July 14, 2002 01:07 PM
Apparently I confused you. I have a black palette I attached only to the primary surface. A bitmap is blitted from an offscreen surface to a backbuffer and then flipped. When it flipped the screen wasn''t black so the palette didn''t work.
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