started working on a pixel window

2 files changed, 60 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 04d6739..4ba6469 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ CC=g++
 LD=g++
 COMMON_ARGS=-Wall -Wextra
 CC_ARGS=$(COMMON_ARGS)
-LD_ARGS=$(COMMON_ARGS) -lncurses
+LD_ARGS=$(COMMON_ARGS) -lncurses -lSDL2
 
 .PHONY: clean
 
diff --git a/main.cpp b/main.cpp
index 836418c..eb8f117 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,9 @@
 #include <iostream>
 #include <ncurses.h>
 #include <cmath>
+#include <cstdint>
+#include <vector>
+#include <SDL2/SDL.h>
 #include "chfb.h"
 #include "obj3d.h"
 #include "math_vector.h"
@@ -19,7 +22,7 @@
 
 #define PI 3.1415926535f
 
-int main() {
+void main_term() {
     // init
     setlocale(LC_ALL, "");
     initscr();
@@ -253,5 +256,60 @@ int main() {
 
     // terminate
     endwin();
+}
+
+#define SCREEN_WIDTH  640
+#define SCREEN_HEIGHT 480
+
+void main_SDL() {
+    SDL_Window* window = NULL;
+    SDL_Renderer* renderer = NULL;
+    SDL_Texture* texture = NULL;
+
+    if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+        fprintf(stderr, "Error: SDL_Init error: %s\n", SDL_GetError());
+        return;
+    }
+    window = SDL_CreateWindow("Engine", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
+    if (window == NULL) {
+        fprintf(stderr, "Error: SDL_CreateWindow error: %s\n", SDL_GetError());
+        return;
+    }
+    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_STREAMING, SCREEN_WIDTH, SCREEN_HEIGHT);
+    std::vector<uint32_t> pixels(SCREEN_WIDTH * SCREEN_HEIGHT);
+    for (int y = 0; y < SCREEN_HEIGHT; y++) {
+        for (int x = 0; x < SCREEN_WIDTH; x++) {
+            pixels[x + y * SCREEN_WIDTH] = ((uint32_t) (x + y * SCREEN_WIDTH) << 8) | 0xFF;
+        }
+    }
+    SDL_UpdateTexture(texture, NULL, pixels.data(), SCREEN_WIDTH * 4);
+    SDL_RenderClear(renderer);
+    SDL_RenderCopy(renderer, texture, NULL, NULL);
+    SDL_RenderPresent(renderer);
+    SDL_UpdateWindowSurface(window);
+    SDL_Event e;
+    bool quit = false;
+    while (!quit) {
+        while (SDL_PollEvent(&e)) {
+            if (e.type == SDL_QUIT) {
+                quit = true;
+            }
+        }
+    }
+    SDL_DestroyTexture(texture);
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+}
+
+int main(int argc, char *argv[]) {
+    (void) argc;
+    (void) argv;
+#if 0
+    main_term();
+#else
+    main_SDL();
+#endif
     return EXIT_SUCCESS;
 }