adding image test/example

examples/image/main.c

@@ -0,0 +1,114 @@
+/************************************************************//**
+*
+*	@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);
+	}
+
+	//NOTE: create image
+	str8 imagePath = mp_app_get_resource_path(mem_scratch(), "../resources/triceratops.png");
+	mg_image image = mg_image_create_from_file(imagePath, true);
+	vec2 imageSize = mg_image_size(image);
+
+	str8 imagePath2 = mp_app_get_resource_path(mem_scratch(), "../resources/Top512.png");
+	mg_image image2 = mg_image_create_from_file(imagePath2, true);
+	vec2 imageSize2 = mg_image_size(image2);
+
+	// 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_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});
+
+			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);
+			mg_fill();
+
+			mg_matrix_pop();
+
+			mg_image_draw(image2, (mp_rect){300, 200, 300, 300});
+
+			mg_flush();
+		mg_surface_present(surface);
+
+		mem_arena_clear(mem_scratch());
+	}
+
+	mg_image_destroy(image);
+	mg_canvas_destroy(canvas);
+	mg_surface_destroy(surface);
+	mp_window_destroy(window);
+
+	mp_terminate();
+
+	return(0);
+}