cave-story-solaris/external/SDL2/Xcode-iOS/Demos/src/rectangles.c
Clownacy ac465d29b4 Mean CMake dependency overhaul
I'm taking a page from Dolphin's book, and including copies of each
dependency's source code. This combines the ease of use of including
pre-built libraries instead of needing to navigate a package manager
 - as is (or was) the case for MSVC - with the portability of using
packages. Granted, this method's more of a jack of all trades,
master of none, since it's *less* user-friendly than prebuilt
packages (compilation times), and you don't get the per-distro
compatibility fixes you'd get from a package manager.

You can still use system libs if you want. In fact, it's still the
default behaviour: compiling the libs manually is just a fallback.
I'll add an option to force-enable this soon, however, since it's a
nicer way to produce static MSYS2 builds than the hackish nightmare
that I was using before. Not to mention, having my own copy of the
sources means I can provide my own fixes and tweaks your package
manager may not. For example, I can combine MSYS2's FreeType
subpixel rendering with vcpkg's fix for SDL2 exporting its symbols
in static builds.
2019-04-26 01:52:02 +01:00

92 lines
2 KiB
C

/*
* 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;
int renderW;
int renderH;
SDL_RenderGetLogicalSize(renderer, &renderW, &renderH);
/* Come up with a random rectangle */
SDL_Rect rect;
rect.w = randomInt(64, 128);
rect.h = randomInt(64, 128);
rect.x = randomInt(0, renderW);
rect.y = randomInt(0, renderH);
/* 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[])
{
SDL_Window *window;
SDL_Renderer *renderer;
int done;
SDL_Event event;
int windowW;
int windowH;
/* initialize SDL */
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fatalError("Could not initialize SDL");
}
/* seed random number generator */
srand(time(NULL));
/* create window and renderer */
window = SDL_CreateWindow(NULL, 0, 0, 320, 480, SDL_WINDOW_ALLOW_HIGHDPI);
if (window == 0) {
fatalError("Could not initialize Window");
}
renderer = SDL_CreateRenderer(window, -1, 0);
if (!renderer) {
fatalError("Could not create renderer");
}
SDL_GetWindowSize(window, &windowW, &windowH);
SDL_RenderSetLogicalSize(renderer, windowW, windowH);
/* Fill screen with black */
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
/* Enter render loop, waiting for user to quit */
done = 0;
while (!done) {
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT) {
done = 1;
}
}
render(renderer);
SDL_Delay(1);
}
/* shutdown SDL */
SDL_Quit();
return 0;
}