datafighter / sdl-gpu Goto Github PK

What steps will reproduce the problem?
1. compile and run attached program

What is the expected output? What do you see instead?

Expected output: for line thickness greater than 1, when drawing a rectangle, 
it should look like drawn with a single line. Instead it looks like four lines 
with missing rectangle corners. See attached image.

What version of the product are you using? On what operating system?

SDL2_gpu, SDL2 2.0.1+ (trunk), archlinux (current)

Hi Jon!
I have a question.

I'm initializing the sdl part like this:

if(SDL_Init(SDL_INIT_AUDIO | SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | 
SDL_INIT_GAMECONTROLLER | SDL_INIT_HAPTIC) < 0){
    printf("initialize failed SDL_Error: %s\n", SDL_GetError());
  }
  atexit(SDL_Quit);

i need to do it this way so i can have a sdl window handle to use

SDL_SetWindowFullscreen(main_window, SDL_FALSE);
SDL_SetWindowSize(main_window, SCREEN_WIDTH, SCREEN_HEIGHT);
SDL_SetWindowPosition(main_window, SDL_WINDOWPOS_CENTERED, 
SDL_WINDOWPOS_CENTERED);

thats only because GPU_ToggleFullscreen changes the position of the window 
everytime it changes from window to fullscreen. (and i want it to be centered 
everytime)

The problem is everytime i exit, an assertion comes up when closing the Haptic 
Subsystem. (because it is already closed ?...)

have you encounterd something like this while running/testing?
any recommendations?

i did not want to post this on the SDL forums, i think is more concerning to 
sdl-gpu.. anyway, see ya round.

Code:

#include "SDL.h"
#include "SDL_gpu.h"

int main(int argc, char *argv[]) {
    GPU_Target *screen = GPU_Init(800, 600, SDL_WINDOW_RESIZABLE);

    bool quit = false;
    while (!quit) {
        SDL_Event e;
        while (SDL_PollEvent(&e)) {
            switch (e.type) {
            case SDL_QUIT:
                quit = true;
                break;
            }
        }

        GPU_Clear(screen);

        SDL_Color color = { 255, 0, 0, 255 };
        GPU_SetLineThickness(50.0);
        GPU_Circle(screen, 250, 250, 200, color);

        GPU_Flip(screen);
        SDL_Delay(16);
    }

    return 0;
}


Output: https://i.imgur.com/Ykfdkxn.png

This computer is one of the few laptops that the FSF have come even close to 
recommending. Unfortunately, it doesn't have a 3d acceleration card. If that 
laptop doesn't have a mesa implementation, games that transition from using 
sdl1.2 to sdl_gpu would have raised system requirements to the point where 
computers like the yeeloong 8101b can't even support them. At the very least, 
can you add a fallback software renderer that is superior to sdl2's downgraded 
renderer?