Pixel value

SDL Development
1

i have a picture in 800x600. i want to printed in 1024x768 and i am
using sdl image with the function load image but i need to know if the
value of each pixel will stay the same. for example if i hade the
first pixel color at 238 and in full screen does the value of the same
pixel stay the same.

i know the image will look the same but what i need to know is that if
each pixel conserve its values.

2

Simon HEBBO wrote:

i have a picture in 800x600. i want to printed in 1024x768 and i am
using sdl image with the function load image but i need to know if the
value of each pixel will stay the same. for example if i hade the
first pixel color at 238 and in full screen does the value of the same
pixel stay the same.

i know the image will look the same but what i need to know is that if
each pixel conserve its values.

I’m not sure I undetrstand your question, but here we go :

For a given color, the pixel values depends only on the current bpp.
So if you’re running 16bpp in fullscreen and 32bpp windowed, it won’t be
the same.

Stephane

3

Hello, so if i run 16bpp windowed and fullscreen it will be the
same??? i want only to know if i have an image when i used load image
to print it in full screen does the pixel value change even if i am in
the 16bpp.

thank u for ur help,
simonOn Fri, 12 Nov 2004 00:14:20 +0100, Stephane Marchesin <stephane.marchesin at wanadoo.fr> wrote:

Simon HEBBO wrote:

i have a picture in 800x600. i want to printed in 1024x768 and i am
using sdl image with the function load image but i need to know if the
value of each pixel will stay the same. for example if i hade the
first pixel color at 238 and in full screen does the value of the same
pixel stay the same.

i know the image will look the same but what i need to know is that if
each pixel conserve its values.

I’m not sure I undetrstand your question, but here we go :

For a given color, the pixel values depends only on the current bpp.
So if you’re running 16bpp in fullscreen and 32bpp windowed, it won’t be
the same.

Stephane

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