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Hello.
I have picture file and i want to load it to win32 consol project.
How can i do that without making a text file with 3 matrix of the RGB colors ?
I dont want to use matrix file, because the picture is 700*700 pixels, and it takes something like 10-15 seconds to load it.
You can probably find some code to read a BMP or JPEG - in fact, there's something called libjpeg that does the latter.
But I'm curious as to how you manage to consume 10-15 seconds on reading 700 x 700 x 3 byte matrix - my only guess is that you are doing that in some incredibly pessimal way. Perhaps if you post the code that you use for that, we can suggest something better.
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Mats
Its taking so much time because i use glut library to read each point color, and then print that point on the screen...
Surely you can use some OpenGL function to draw a bitmap directly?
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Mats
>> Surely you can use some OpenGL function to draw a bitmap directly?
I've tried that, it's very slow. You have to use vertexs in ogl before it's worth using.
That doesn't make sense. Rendering a static image onto a window is something that even the worst graphics card can do 1000+ times per second.
(OK, so it's not that easy, but in theory, this is true.)
Maybe I was doing it wrong then, all I know is I was exploring ogl's capabilities, and found a function like glImage() or somthing like that, and it would draw an image like gdi would, with no 3d capabilities. And it was very slow.
CxImage is the best JPG converter ive found, much easier to use (IMO) than libjpeg and supports more formats.