2023-05-17 13:14:14 +00:00
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/************************************************************//**
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*
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* @file: main.cpp
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* @author: Martin Fouilleul
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* @date: 30/07/2022
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* @revision:
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*
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*****************************************************************/
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#include<stdlib.h>
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#include<string.h>
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#include<stdio.h>
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#include<errno.h>
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#define _USE_MATH_DEFINES //NOTE: necessary for MSVC
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#include<math.h>
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#include"milepost.h"
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#include"tiger.c"
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mg_font create_font()
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{
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//NOTE(martin): create font
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str8 fontPath = mp_app_get_resource_path(mem_scratch(), "../resources/OpenSansLatinSubset.ttf");
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char* fontPathCString = str8_to_cstring(mem_scratch(), fontPath);
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FILE* fontFile = fopen(fontPathCString, "r");
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if(!fontFile)
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{
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log_error("Could not load font file '%s': %s\n", fontPathCString, strerror(errno));
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return(mg_font_nil());
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}
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unsigned char* fontData = 0;
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fseek(fontFile, 0, SEEK_END);
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u32 fontDataSize = ftell(fontFile);
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rewind(fontFile);
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fontData = (unsigned char*)malloc(fontDataSize);
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fread(fontData, 1, fontDataSize, fontFile);
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fclose(fontFile);
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unicode_range ranges[5] = {UNICODE_RANGE_BASIC_LATIN,
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UNICODE_RANGE_C1_CONTROLS_AND_LATIN_1_SUPPLEMENT,
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UNICODE_RANGE_LATIN_EXTENDED_A,
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UNICODE_RANGE_LATIN_EXTENDED_B,
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UNICODE_RANGE_SPECIALS};
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mg_font font = mg_font_create_from_memory(fontDataSize, fontData, 5, ranges);
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free(fontData);
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return(font);
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}
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int main()
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{
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mp_init();
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mp_clock_init(); //TODO put that in mp_init()?
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mp_rect windowRect = {.x = 100, .y = 100, .w = 810, .h = 610};
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mp_window window = mp_window_create(windowRect, "test", 0);
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mp_rect contentRect = mp_window_get_content_rect(window);
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//NOTE: create surface
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mg_surface surface = mg_surface_create_for_window(window, MG_CANVAS);
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mg_surface_swap_interval(surface, 0);
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//TODO: create canvas
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mg_canvas canvas = mg_canvas_create();
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if(mg_canvas_is_nil(canvas))
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{
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printf("Error: couldn't create canvas\n");
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return(-1);
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}
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mg_font font = create_font();
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// start app
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mp_window_bring_to_front(window);
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mp_window_focus(window);
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bool tracked = false;
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vec2 trackPoint = {0};
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f32 zoom = 1;
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f32 startX = 300, startY = 200;
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bool singlePath = false;
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int singlePathIndex = 0;
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f64 frameTime = 0;
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mp_input_state inputState = {0};
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while(!mp_should_quit())
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{
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f64 startTime = mp_get_time(MP_CLOCK_MONOTONIC);
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mp_pump_events(0);
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mp_event* event = 0;
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while((event = mp_next_event(mem_scratch())) != 0)
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{
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mp_input_process_event(&inputState, event);
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switch(event->type)
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{
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case MP_EVENT_WINDOW_CLOSE:
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{
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mp_request_quit();
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} break;
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case MP_EVENT_WINDOW_RESIZE:
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{
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mp_rect frame = {0, 0, event->frame.rect.w, event->frame.rect.h};
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mg_surface_set_frame(surface, frame);
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} break;
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case MP_EVENT_MOUSE_BUTTON:
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{
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if(event->key.code == MP_MOUSE_LEFT)
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{
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if(event->key.action == MP_KEY_PRESS)
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{
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tracked = true;
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vec2 mousePos = mp_mouse_position(&inputState);
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trackPoint.x = (mousePos.x - startX)/zoom;
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trackPoint.y = (mousePos.y - startY)/zoom;
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}
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else
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{
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tracked = false;
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}
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}
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} break;
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case MP_EVENT_MOUSE_WHEEL:
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{
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vec2 mousePos = mp_mouse_position(&inputState);
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f32 pinX = (mousePos.x - startX)/zoom;
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f32 pinY = (mousePos.y - startY)/zoom;
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zoom *= 1 + event->move.deltaY * 0.01;
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zoom = Clamp(zoom, 0.5, 5);
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startX = mousePos.x - pinX*zoom;
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startY = mousePos.y - pinY*zoom;
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} break;
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case MP_EVENT_KEYBOARD_KEY:
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{
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if(event->key.action == MP_KEY_PRESS || event->key.action == MP_KEY_REPEAT)
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{
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switch(event->key.code)
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{
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case MP_KEY_SPACE:
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singlePath = !singlePath;
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break;
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case MP_KEY_UP:
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{
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if(event->key.mods & MP_KEYMOD_SHIFT)
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{
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singlePathIndex++;
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}
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else
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{
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zoom += 0.001;
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}
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} break;
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case MP_KEY_DOWN:
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{
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if(event->key.mods & MP_KEYMOD_SHIFT)
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{
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singlePathIndex--;
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}
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else
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{
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zoom -= 0.001;
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}
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} break;
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}
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}
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} break;
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default:
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break;
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}
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}
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if(tracked)
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{
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vec2 mousePos = mp_mouse_position(&inputState);
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startX = mousePos.x - trackPoint.x*zoom;
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startY = mousePos.y - trackPoint.y*zoom;
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}
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mg_surface_prepare(surface);
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mg_set_color_rgba(1, 0, 1, 1);
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mg_clear();
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mg_matrix_push((mg_mat2x3){zoom, 0, startX,
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0, zoom, startY});
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draw_tiger(singlePath, singlePathIndex);
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if(singlePath)
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{
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printf("display single path %i\n", singlePathIndex);
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printf("viewpos = (%f, %f), zoom = %f\n", startX, startY, zoom);
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}
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mg_matrix_pop();
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// text
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mg_set_color_rgba(0, 0, 1, 1);
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mg_set_font(font);
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mg_set_font_size(12);
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mg_move_to(50, 600-50);
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str8 text = str8_pushf(mem_scratch(),
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"Milepost vector graphics test program (frame time = %fs, fps = %f)...",
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frameTime,
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1./frameTime);
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mg_text_outlines(text);
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mg_fill();
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printf("Milepost vector graphics test program (frame time = %fs, fps = %f)...\n",
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frameTime,
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1./frameTime);
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mg_render(surface, canvas);
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mg_surface_present(surface);
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mp_input_next_frame(&inputState);
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mem_arena_clear(mem_scratch());
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frameTime = mp_get_time(MP_CLOCK_MONOTONIC) - startTime;
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}
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mg_font_destroy(font);
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mg_canvas_destroy(canvas);
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mg_surface_destroy(surface);
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mp_window_destroy(window);
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mp_terminate();
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return(0);
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}
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