Fix Buffer Overflow

[gabrielOFlores]

Update GetInt functions to use array for results with a fixed size of 4

Description

Fix for Buffer Overflow by limiting the number of integers in GLint:

//GLBackend.cpp

GLint result[4]; // Fixed size of 4

glGetIntegerv(p_parameter, result); // The max size of glGetIntegerv is 4

return static_cast<int>(result[0]);

Related Issue(s)

Fixes #634

Checklist

• My code follows the project's code style guidelines
• My changes don't generate new warnings or errors

See also

Why a fixed value of 4?

[gabrielOFlores]

Sorry about earlier, I had some problems with branches and ended up making a mess; git is still quite confusing for me.

[gabrielOFlores]

From what I've researched, some values ​​within OpenGL use arrays of 4 integers, such as viewports, colors, positions, etc...
Within the Build Debug there must be something that needs to return an array of 4 integers, and since it didn't have a fixed size before, it ended up returning nothing, or garbage.

[adriengivry]

Looks good to me. I believe this solution is satisfactory for now. In the future we'll have to look into alternative solutions to avoid allocating unnecessary memory and protect other getters (float, bool, int64...) from buffer overruns.

Thanks for your contribution!

[gabrielOFlores]

thank you and all the best!