orca/examples/image/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"
int main()
{
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_CANVAS);
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mg_surface_swap_interval(surface, 0);
//NOTE: create canvas
mg_canvas canvas = mg_canvas_create();
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if(mg_canvas_is_nil(canvas))
{
printf("Error: couldn't create canvas\n");
return(-1);
}
//NOTE: create image
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str8 imagePath = path_find_resource(mem_scratch(), STR8("../resources/triceratops.png"));
mg_image image = mg_image_create_from_file(surface, imagePath, false);
vec2 imageSize = mg_image_size(image);
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str8 imagePath2 = path_find_resource(mem_scratch(), STR8("../resources/Top512.png"));
mg_image image2 = mg_image_create_from_file(surface, imagePath2, false);
vec2 imageSize2 = mg_image_size(image2);
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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((event = mp_next_event(mem_scratch())) != 0)
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{
switch(event->type)
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{
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();
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mg_set_color_rgba(1, 1, 1, 1);
mg_matrix_push((mg_mat2x3){0.707, -0.707, 200,
0.707, 0.707, 100});
mg_set_image(image);
mg_set_image_source_region((mp_rect){500, 500, 2000, 1400});
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mg_move_to(0, 0);
mg_line_to(200, 0);
mg_line_to(300, 100);
mg_line_to(200, 200);
mg_line_to(0, 200);
mg_line_to(100, 100);
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mg_close_path();
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mg_fill();
mg_matrix_pop();
mg_image_draw(image2, (mp_rect){300, 200, 300, 300});
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mg_render(surface, canvas);
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mg_surface_present(surface);
mem_arena_clear(mem_scratch());
}
mg_image_destroy(image);
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mg_canvas_destroy(canvas);
mg_surface_destroy(surface);
mp_window_destroy(window);
mp_terminate();
return(0);
}