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#include <stdio.h>
#include <stdlib.h>
#include <sys/times.h>
#define CGLM_FORCE_DEPTH_ZERO_TO_ONE
#include <cglm/cglm.h>
#include <cglm/struct.h>
#include "objload.h"
#define MONKEY
#include "graphics.h"
#include "window.h"
#include "common.h"
u32 width = 640;
u32 height = 480;
window_t window;
graphics_t graphics;
int _create_surface(VkInstance instance, VkSurfaceKHR *surface);
int update_ubo(void *uniform_buffer);
struct ubo {
mat4 model;
mat4 view;
mat4 proj;
};
#ifndef MONKEY
vertex_t vertices[] = {
{{-0.5f, -0.5f, 0.0f}, {0.0f, 0.0f, 0.0f}, {1.0f, 0.0f, 0.0f}},
{{ 0.5f, -0.5f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 1.0f, 0.0f}},
{{ 0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
{{-0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f}},
{{-0.5f, -0.5f, -0.5f}, {0.0f, 0.0f, 0.0f}, {1.0f, 0.0f, 0.0f}},
{{ 0.5f, -0.5f, -0.5f}, {0.0f, 0.0f, 0.0f}, {0.0f, 1.0f, 0.0f}},
{{ 0.5f, 0.5f, -0.5f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}},
{{-0.5f, 0.5f, -0.5f}, {0.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f}},
};
#endif
u32 indices[] = {
0, 1, 2, 2, 3, 0,
4, 5, 6, 6, 7, 4,
};
int main(void)
{
int ret = 1;
if(SDL_Init(0)) {
err("SDL_Init: failed");
goto f1;
}
// populate window info
struct window_info win_info = {0};
win_info.title = "Test App";
win_info.flags = SDL_WINDOW_RESIZABLE;
win_info.w = width;
win_info.h = height;
// create window
window = window_create(&win_info);
if(!window) {
err("window_create: failed");
goto f2;
}
#ifdef MONKEY
vertex_t *objvertices;
size_t nvertices = 0;
// Load obj
FILE *fp = fopen("../files/monkey.obj", "r");
objload_t obj = {0};
obj_load(fp, &obj);
struct obj_struct_metadata obj_metadata = {
sizeof(vertex_t),
offsetof(vertex_t, pos),
offsetof(vertex_t, color), 0,
OBJ_STRUCT_VERT_EXISTS |
OBJ_STRUCT_NORM_EXISTS
};
obj_transfer_raw(obj, obj_metadata, &nvertices, NULL);
objvertices = xcalloc(nvertices, sizeof(*objvertices));
obj_transfer_raw(obj, obj_metadata, &nvertices, objvertices);
obj_free(obj);
fclose(fp);
#endif
// get extensions
unsigned int ext_count = 0;
window_extension_info(window, &ext_count, NULL);
char **extensions = xcalloc(ext_count, sizeof(char *));
window_extension_info(window, &ext_count, (const char **)extensions);
// populate the device info
struct graphics_info grph_info = {0};
grph_info.name = "Test App";
grph_info.version = MAKE_VERSION(1, 0, 0);
grph_info.ext_count = ext_count;
grph_info.extensions = (const char * const *)extensions;
#ifndef MONKEY
grph_info.vertices = vertices;
grph_info.nvertices = ARR_SIZE(vertices);
#else
grph_info.vertices = objvertices;
grph_info.nvertices = nvertices;
#endif
grph_info.indices = indices;
grph_info.nindices = ARR_SIZE(indices);
grph_info.ubo_size = sizeof(struct ubo);
grph_info.update_ubo = update_ubo;
grph_info.surface_func = _create_surface;
// create the device
graphics = graphics_create(&grph_info);
if(!graphics) {
err("device_create: failed");
if(extensions) free(extensions);
goto f3;
}
if(extensions) free(extensions);
int running = 1;
while(running) {
SDL_Event windowEvent;
while(SDL_PollEvent(&windowEvent))
if(windowEvent.type == SDL_QUIT) {
running = 0;
break;
}
#ifndef MONKEY
graphics_draw_frame(graphics, grph_info.nindices);
#else
graphics_draw_frame(graphics, grph_info.nvertices);
#endif
}
ret = 0;
#ifdef MONKEY
free(objvertices);
#endif
graphics_destroy(graphics);
f3: window_destroy(window);
f2: SDL_Quit();
f1: return ret;
}
int update_ubo(void *uniform_buffer)
{
struct ubo *ubo = (struct ubo *)uniform_buffer;
static float time = 1.0f;
time += 0.01f;
memcpy(ubo->model, glms_mat4_identity().raw, sizeof(ubo->model));
glm_rotate(ubo->model, time * glm_rad(90.0f),
(vec3){0.0f, 0.0f, 1.0f});
glm_lookat((vec3){2.0f, 2.0f, 0.0f}, (vec3){0.0f, 0.0f, 0.0f}, (vec3){0.0f, 0.0f, 1.0f}, ubo->view);
glm_perspective(glm_rad(45.0f), (float)width/(float)height, 0.1f, 10.0f, ubo->proj);
ubo->proj[1][1] *= -1;
return 0;
}
int _create_surface(VkInstance instance, VkSurfaceKHR *surface)
{
return window_create_surface(window, instance, surface);
}
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