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safe sleep CPU in idle

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This commit is contained in:
Matvey Cherevko
2018-11-08 11:53:50 +07:00
parent f12d7e8e22
commit e5e355c825
5 changed files with 45 additions and 39 deletions
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15
samples/sources/sample_00/sample_00.cpp
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@@ -26,7 +26,7 @@ namespace
v_color = a_color;
v_uv = a_uv;
float s = 0.7 + 0.3 * (cos(u_time * 0.003) + 1);
float s = 0.7 + 0.3 * (cos(u_time * 3.0) + 1.0);
gl_Position = vec4(a_position * s, 1.0) * u_MVP;
}
)glsl";
@@ -42,7 +42,7 @@ namespace
void main(){
vec2 uv = vec2(v_uv.s, 1.0 - v_uv.t);
if ( u_time > 2000 ) {
if ( u_time > 2.0 ) {
gl_FragColor = v_color * texture2D(u_texture2, uv);
} else {
gl_FragColor = v_color * texture2D(u_texture1, uv);
@@ -158,22 +158,22 @@ namespace
.add_vertices(vertex_buffer1_)
.add_vertices(vertex_buffer2_);
begin_game_time_ = time::now_ms();
return true;
}
bool frame_tick() final {
the<window>().set_title(strings::rformat("FPS: %0", the<engine>().frame_rate()));
const keyboard& k = the<input>().keyboard();
if ( the<window>().should_close() || k.is_key_just_released(keyboard_key::escape) ) {
return false;
}
const auto game_time = (time::now_ms() - begin_game_time_).cast_to<f32>().value;
const auto framebuffer_size = the<window>().real_size().cast_to<f32>();
const auto projection = math::make_orthogonal_lh_matrix4(framebuffer_size, 0.f, 1.f);
material_.properties()
.property("u_time", game_time)
.property("u_time", the<engine>().time())
.property("u_MVP", projection);
the<render>().execute(render::command_block<64>()
@@ -193,12 +193,13 @@ namespace
vertex_buffer_ptr vertex_buffer2_;
render::material material_;
render::geometry geometry_;
milliseconds<i64> begin_game_time_;
};
}
int e2d_main() {
auto params = engine::parameters("sample_00", "enduro2d");
auto params = engine::parameters("sample_00", "enduro2d")
.timer_params(engine::timer_parameters()
.maximal_framerate(100));
modules::initialize<engine>(params).start<game>();
return 0;
}