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Phillip Schuster

Plotting Pixels on a Direct3D Texture

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Hi all !!

How can I plot pixels on a Direct3D Texture ?? I simply do that:

unsigned char color = 64;

unsigned char* bits = (unsigned char*)TextureSurface;
bits[y*pitch+x] = unsigned char color;

The texture is 8-Bit Palettized. The Texture has a greyscale palette.

On Voodoo cards, this works fine, but on my TNT I get strange colors. I think that is, because the TNT cannot use 8-Bit. How can I plot pixels for the TNT.

If this would work, I only could use 8-Bit. What about 16-Bit Textures, for example RGB565. How can I plot pixels in this texture-format ??


Thanks, Phillip

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Hi,
I'm not sure, but why not simply use and RGB() struct ? You've got to use an USHORT because of the 16 bit. And remember each color component has the maximum value 31.

code:

#define RGB16BIT(r,g,b) ((b%32)+(g%32)<<5)+((r%32)<<10)

TextureMemory[...] = (USHORT) RGB16BIT(r,g,b);


That should work.

CU

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Skullpture Entertainment
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