ugui/test_renderer.c3

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import sdlrenderer::ren;
import std::io;
import std::thread;
import sdl3::sdl;
import std::compression::qoi;
import std::core::mem::allocator;
char[*] shader_rect_vert = $embed("resources/shaders/compiled/rect.vert.spv");
char[*] shader_rect_frag = $embed("resources/shaders/compiled/rect.frag.spv");
char[*] shader_sprite_vert = $embed("resources/shaders/compiled/sprite.vert.spv");
char[*] shader_sprite_frag = $embed("resources/shaders/compiled/sprite.frag.spv");
const uint WINDOW_WIDTH = 640;
const uint WINDOW_HEIGHT = 480;
fn int main()
{
ren::Renderer ren;
ren.init("test window", WINDOW_WIDTH, WINDOW_HEIGHT);
// TODO: these could be the same function
ren.load_spirv_shader_from_mem("rect shader", &shader_rect_vert, &shader_rect_frag, 0, 0);
ren.create_pipeline("rect shader", RECT);
// load the tux qoi image
QOIDesc img_desc;
char[] img_pixels = qoi::read(allocator::temp(), "resources/tux.qoi", &img_desc)!!;
// and put it in a texture
ren.new_texture("tux", FULL_COLOR, img_pixels, img_desc.width, img_desc.height);
// create a new pipeline to use the texture
ren.load_spirv_shader_from_mem("sprite shader", &shader_sprite_vert, &shader_sprite_frag, 1, 0);
ren.create_pipeline("sprite shader", SPRITE);
sdl::Event e;
bool quit = false;
for (usz i = 0; !quit; i++) {
if (sdl::poll_event(&e)) {
if (e.type == EVENT_QUIT) {
quit = true;
}
}
if (i == 300) {
io::printn("ciao!");
img_pixels = qoi::read(allocator::temp(), "resources/tux_inv.qoi", &img_desc)!!;
ren.update_texture("tux", img_pixels, img_desc.width, img_desc.height);
}
ren.begin_render(true);
// Colored Rectangles Render Pass
ren.start_render_pass("rect shader");
// rect 1
ren.push_quad(100,100,100,100,0xff00ff00, 20);
// rect 2
ren.push_quad(0,0,20,20,0xff0000ff);
// rect 3
ren.push_quad(200,300,50,50,0xffff0000);
//ren.set_scissor(0,50,200,300);
ren.draw_quads();
ren.end_render_pass();
// End Rectangle Render Pass
// Textured Rectangles Render Pass
ren.start_render_pass("sprite shader");
// bind the pipeline's sampler
ren.bind_texture("tux");
// tux
ren.push_sprite(300, 0, 54, 64, 0, 0);
ren.reset_scissor();
ren.draw_quads();
ren.end_render_pass();
// End Textured Rectangle Render Pass
ren.end_render();
}
ren.free();
return 0;
}