Function SDL_RenderDrawLines

deps/SDL2/src/render/SDL_render.c:2555–2596

}

int
SDL_RenderDrawLines(SDL_Renderer * renderer,
                    const SDL_Point * points, int count)
{
    SDL_FPoint *fpoints;
    int i;
    int retval;
    SDL_bool isstack;

    CHECK_RENDERER_MAGIC(renderer, -1);

    if (!points) {
        return SDL_SetError("SDL_RenderDrawLines(): Passed NULL points");
    }
    if (count < 2) {
        return 0;
    }

    /* Don't draw while we're hidden */
    if (renderer->hidden) {
        return 0;
    }

    if (renderer->scale.x != 1.0f || renderer->scale.y != 1.0f) {
        return RenderDrawLinesWithRects(renderer, points, count);
    }

    fpoints = SDL_small_alloc(SDL_FPoint, count, &isstack);
    if (!fpoints) {
        return SDL_OutOfMemory();
    }
    for (i = 0; i < count; ++i) {
        fpoints[i].x = points[i].x * renderer->scale.x;
        fpoints[i].y = points[i].y * renderer->scale.y;
    }

    retval = QueueCmdDrawLines(renderer, fpoints, count);

    SDL_small_free(fpoints, isstack);

    return retval < 0 ? retval : FlushRenderCommandsIfNotBatching(renderer);
}

int
SDL_RenderDrawLinesF(SDL_Renderer * renderer,