116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <signal.h>
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#include <stdint.h>
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#include <wayland-client.h>
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#include <wayland-util.h>
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#include <pthread.h>
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#include <sys/mman.h>
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#include "renderer.h"
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#include "wayland.h"
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#include <string.h>
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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void print_help(FILE *channel, char *bin_path) {
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fprintf(channel, "Usage: %s [OPTION]... [PATH]\n", bin_path);
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}
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/// What is the argument parser currently reading?
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enum list_state {
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list_none,
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list_ouptut,
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list_texture,
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};
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int main(int argc, char *argv[]) {
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char *shader_path = NULL;
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int output_type = OUTPUT_WINDOW;
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enum list_state list_state = list_none;
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char **output_list = NULL;
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char **texture_list = NULL;
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int output_count = 0;
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int texture_count = 0;
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// syntax: --window for a normal window or --layer for a wallpaper
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for (int i = 1; i < argc; i++) {
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if (strcmp("--help", argv[i]) == 0) {
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print_help(stdout, argv[0]);
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return 0;
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}
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else if (strcmp("--window", argv[i]) == 0) {
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output_type = OUTPUT_WINDOW;
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list_state = list_none;
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}
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else if (strcmp("--layer", argv[i]) == 0) {
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output_type = OUTPUT_LAYER;
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list_state = list_none;
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}
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else if (strcmp("--output", argv[i]) == 0) {
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output_count = 0;
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output_list = &argv[i + 1];
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list_state = list_ouptut;
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}
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else if (strcmp("--texture", argv[i]) == 0) {
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texture_count = 0;
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texture_list = &argv[i + 1];
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list_state = list_texture;
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}
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else if (strcmp("--", argv[i]) == 0) {
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list_state = list_none;
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}
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else if (list_state == list_ouptut) {
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output_count++;
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}
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else if (list_state == list_texture) {
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texture_count++;
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if (texture_count > 4) {
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fprintf(stderr, "maximum number of textures is 4\n");
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return 1;
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}
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}
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else if (list_state == list_none) {
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// path to fragment shader
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if (shader_path != NULL) {
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fprintf(stderr, "Tried supplying '%s' as a shader file while one has already been selected.\n", argv[i]);
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return 1;
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}
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shader_path = argv[i];
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}
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}
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if (shader_path == NULL) {
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fprintf(stderr, "Need to supply path to shader!\n");
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print_help(stderr, argv[0]);
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return 1;
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}
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struct client_state *state = wayland_init(output_type, output_list, output_count);
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bool renderer_initialized = false;
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Renderer renderer;
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bool running = true;
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while (running) {
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struct event event = wait_for_event(state);
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if (event.type == EVENT_DRAW) {
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int width = event.data.draw.width;
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int height = event.data.draw.height;
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double time = event.data.draw.time / 1000.0;
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if (!renderer_initialized) {
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renderer = new_renderer(texture_list, texture_count);
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renderer_initialized = true;
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}
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render(&renderer, width, height, time, shader_path, 0);
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swap_buffers(state, event.data.draw.surface);
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}
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if (event.type == EVENT_NONE) {
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}
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if (event.type == EVENT_EXIT) {
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running = false;
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}
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}
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return 0;
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}
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