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SDL 2 blitting BMP File


SDL 2 blitting BMP File

By : Paul Ayraud
Date : November 18 2020, 04:01 AM
wish helps you Currently trying to display a BMP file on a window through SDL 2 , I think the problem is in your screendisplay() function:
code :
bool sdl::screendisplay()
{
    bool sucess;
    Window = SDL_CreateWindow("SDL Tutorial", 0, 0,640, 280, SDL_WINDOW_SHOWN);
    if (Window = NULL) // <- Right here
    {
        return sucess = false;
    }
    else
        screenSurface= SDL_GetWindowSurface(Window);
        return sucess = true;
};


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MVC - where to put blitting data

MVC - where to put blitting data


By : stoicdavid
Date : March 29 2020, 07:55 AM
I wish this help you One the one hand, graphics data should clearly go in the view. However, it's often also important for things like bounds checking, collision shapes, etc. Therefore I advise to encapsulate the graphics data in a class/module with two interfaces.
One interface provides access to just the graphics in can be given to the view. The other provides access to the data derived from the graphics and can be given to the model.
Blitting in Java

Blitting in Java


By : YSH
Date : March 29 2020, 07:55 AM
To fix the issue you can do Normally in Java it's easier to work with the native Image types and use their derived graphics. Behind the scenes Java uses blits as well, so the higher level abstractions is made to easen the workload.
But if there's no way to abstract on the pixel data you can use Raster and WritableRaster (where you can replace portions of the array) as an alternative to your solution. These rasters can be used with a BufferedImage which then can be drawn using the drawImage method you mentioned. I found one way of doing it here which basically creates the Image and then retrieves the raster for future manipulation.
code :
int x, y = 100;
BufferedImage image   = new BufferedImage(x, y, BufferedImage.TYPE_INT_RGB);
WritableRaster raster = image.getRaster();
Opening text file in C++ and blitting result onto screen

Opening text file in C++ and blitting result onto screen


By : user3298451
Date : March 29 2020, 07:55 AM
I wish did fix the issue. It will depend on your windowing system. If you're using Windows then you can use either a static control or a a textbox control to hold the text. You use SetWindowText to pass the text you've read into the control.
FYI: "blitting" isn't a term usually used to describe this sort of action. "Render" is probably a better term (in my opinion).
SDL 2 BMP Blitting

SDL 2 BMP Blitting


By : user3306290
Date : March 29 2020, 07:55 AM
With these it helps Fix two lines of code:
Change if(window = NULL) to if(window == NULL)
Images not blitting

Images not blitting


By : Samer Eberlin
Date : March 29 2020, 07:55 AM
Any of those help The code you posted is different from the one in your link, but it works fine in my tests.
I would simplify it a bit more to something like this:
code :
width = max(i.get_rect().width for i in images)
height = sum(i.get_rect().height for i in images)

out = py.Surface((width, height), flags=py.SRCALPHA)

pos = 0
for i in images:
    r = out.blit(i, (0, pos))
    pos += i.get_rect().height
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