SDL/Xcode-iOS/Demos/src/rectangles.c

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/*
* rectangles.c
* written by Holmes Futrell
* use however you want
*/
#include "SDL.h"
#include <time.h>
#include "common.h"
void
render(SDL_Renderer *renderer)
{
Uint8 r, g, b;
/* Come up with a random rectangle */
SDL_Rect rect;
rect.w = randomInt(64, 128);
rect.h = randomInt(64, 128);
rect.x = randomInt(0, SCREEN_WIDTH);
rect.y = randomInt(0, SCREEN_HEIGHT);
/* Come up with a random color */
r = randomInt(50, 255);
g = randomInt(50, 255);
b = randomInt(50, 255);
/* Fill the rectangle in the color */
SDL_SetRenderDrawColor(renderer, r, g, b, 255);
SDL_RenderFillRect(renderer, &rect);
/* update screen */
SDL_RenderPresent(renderer);
}
int
main(int argc, char *argv[])
{
if (SDL_Init(SDL_INIT_VIDEO/* | SDL_INIT_AUDIO*/) < 0)
{
printf("Unable to initialize SDL");
}
SDL_LogSetAllPriority(SDL_LOG_PRIORITY_WARN);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
int landscape = 1;
int modes = SDL_GetNumDisplayModes(0);
int sx = 0, sy = 0;
for (int i = 0; i < modes; i++)
{
SDL_DisplayMode mode;
SDL_GetDisplayMode(0, i, &mode);
if (landscape ? mode.w > sx : mode.h > sy)
{
sx = mode.w;
sy = mode.h;
}
}
printf("picked: %d %d\n", sx, sy);
SDL_Window *_sdl_window = NULL;
SDL_GLContext _sdl_context = NULL;
_sdl_window = SDL_CreateWindow("fred",
0, 0,
sx, sy,
SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS);
SDL_SetHint("SDL_HINT_ORIENTATIONS", "LandscapeLeft LandscapeRight");
int ax = 0, ay = 0;
SDL_GetWindowSize(_sdl_window, &ax, &ay);
printf("given: %d %d\n", ax, ay);
return 0;
}