orca/examples/atlas/main.c

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/************************************************************//**
*
* @file: main.cpp
* @author: Martin Fouilleul
* @date: 30/07/2022
* @revision:
*
*****************************************************************/
#include<stdlib.h>
#include<string.h>
#include<errno.h>
#define _USE_MATH_DEFINES //NOTE: necessary for MSVC
#include<math.h>
#include"milepost.h"
#define LOG_SUBSYSTEM "Main"
int main()
{
LogLevel(LOG_LEVEL_WARNING);
mp_init();
mp_clock_init(); //TODO put that in mp_init()?
mp_rect windowRect = {.x = 100, .y = 100, .w = 810, .h = 610};
mp_window window = mp_window_create(windowRect, "test", 0);
mp_rect contentRect = mp_window_get_content_rect(window);
//NOTE: create surface
mg_surface surface = mg_surface_create_for_window(window, MG_BACKEND_DEFAULT);
mg_surface_swap_interval(surface, 0);
//NOTE: create canvas
mg_canvas canvas = mg_canvas_create(surface);
if(mg_canvas_is_nil(canvas))
{
printf("Error: couldn't create canvas\n");
return(-1);
}
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//NOTE: create atlas
mem_arena permanentArena = {0};
mem_arena_init(&permanentArena);
mg_rect_atlas* atlas = mg_rect_atlas_create(&permanentArena, 16000, 16000);
mg_image atlasImage = mg_image_create(16000, 16000);
str8 path1 = path_executable_relative(mem_scratch(), STR8("../resources/triceratops.png"));
str8 path2 = path_executable_relative(mem_scratch(), STR8("../resources/Top512.png"));
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mg_image_region image1 = mg_image_atlas_alloc_from_file(atlas, atlasImage, path1, false);
mg_image_region image2 = mg_image_atlas_alloc_from_file(atlas, atlasImage, path2, false);
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// start app
mp_window_bring_to_front(window);
mp_window_focus(window);
while(!mp_should_quit())
{
mp_pump_events(0);
mp_event event = {0};
while(mp_next_event(&event))
{
switch(event.type)
{
case MP_EVENT_WINDOW_CLOSE:
{
mp_request_quit();
} break;
default:
break;
}
}
mg_surface_prepare(surface);
mg_set_color_rgba(0, 1, 1, 1);
mg_clear();
mg_set_color_rgba(1, 1, 1, 1);
mg_image_draw_region(image1.image, image1.rect, (mp_rect){100, 100, 300, 300});
mg_image_draw_region(image2.image, image2.rect, (mp_rect){300, 200, 300, 300});
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mg_flush();
mg_surface_present(surface);
mem_arena_clear(mem_scratch());
}
mg_image_atlas_recycle(atlas, image1);
mg_image_atlas_recycle(atlas, image2);
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mg_canvas_destroy(canvas);
mg_surface_destroy(surface);
mp_window_destroy(window);
mp_terminate();
return(0);
}