127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
#include <math.h>
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#include <stdio.h>
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#include <stdlib.h> /**< rand qsort */
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#include "sww/app.h"
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#include "sww/color.h"
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#include "sww/fps_helper.h"
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#include "sww/rate_helper.h"
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#include "sww/renderer.h"
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#include "sww/texture.h"
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#include "sww/util.h"
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#include "sww/vmath.h"
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#include "sww/window.h"
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#define MAX_SCENE 2
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#define TITLE "SWW Starfield"
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typedef struct
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{
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int w;
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int h;
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int method;
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swwRenderer* renderer;
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} UserData;
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void OnKey(swwWindow* o, swwKeycode key, int pressed)
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{
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if (pressed) {
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if (key == swwKeycode_ESCAPE) {
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swwApp_PostQuitEvent();
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} else {
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UserData* ud = swwWindow_GetUserData(o);
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ud->method = (ud->method + 1) % MAX_SCENE;
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}
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}
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}
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void OnButton(swwWindow* o, swwButton btn, int pressed)
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{
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if (btn == swwButton_R && pressed) {
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// Save to png file
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UserData* ud = swwWindow_GetUserData(o);
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uint32_t buf_size = swwUtil_PngBufferSize(ud->w, ud->h, 1);
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uint8_t* buf = (uint8_t*)malloc(buf_size);
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uint8_t* wbuf = swwRenderer_LockBuffer(ud->renderer);
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FILE* fp = NULL;
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swwUtil_SaveBufferToPngBuffer(buf, buf_size, wbuf, ud->w, ud->h, 1);
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fp = fopen("output.png", "wb+");
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fwrite(buf, 1, buf_size, fp);
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fclose(fp);
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free(buf);
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}
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}
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void OnScroll(swwWindow* o, float offset)
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{}
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#define ROTATION_SPEED 0.015f
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#define VIEW_DISTANCE 800.0f
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#define ANTIALIASING 2 // 抗锯齿采样级别（1为关闭）
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typedef struct
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{
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int ori_x; // 原始X坐标
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float depth; // 深度值，Z坐标
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int screen_x; // 投影后屏幕X坐标
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float scale; // 垂直缩放因子
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} ColumnInfo;
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typedef struct
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{
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float x, y, z;
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} Star;
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int main()
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{
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const uint32_t w = 512, h = 512;
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uint32_t img_w, img_h;
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int cw, ch;
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swwWindowCallback callback = {OnKey, OnButton, OnScroll};
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swwFpsHelper fps;
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swwRateHelper rh;
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swwApp_Initialize();
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swwWindow* window = swwWindow_Create(TITLE, w, h);
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UserData ud = {w, h, 0, NULL};
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ud.renderer = swwRenderer_CreateAttachWindow(window, kSoftwareRenderer);
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swwWindow_SetUserData(window, &ud);
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swwWindow_SetCallback(window, &callback);
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const int center_x = w / 2;
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const int center_y = h / 2;
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int i = 0;
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swwRenderer_EnablePerfMonitor(ud.renderer, 1);
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swwFpsHelper_Construct(&fps, 1.f);
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swwRateHelper_Construct(&rh, 30.f);
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while (!swwApp_ShouldExit()) {
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swwRenderer_ClearBlack(ud.renderer);
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switch (ud.method) {
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case 0: {
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} break;
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case 1:
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default: {
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} break;
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}
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if (swwFpsHelper_Update(&fps, ud.renderer)) {
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swwFpsHelper_SetTitleWithFps(&fps, window, TITLE);
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}
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swwRenderer_Present(ud.renderer);
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swwApp_PollEvent();
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swwRateHelper_Sleep(&rh);
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}
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swwRenderer_Destroy(ud.renderer);
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swwWindow_Destroy(window);
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swwApp_Cleanup();
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return 0;
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}
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