From b36d7e5a1cc1faca4843990946ddec19dfec4e75 Mon Sep 17 00:00:00 2001
From: ashmew2 <ashmew2@kolibrios.org>
Date: Sun, 27 Mar 2016 02:12:34 +0000
Subject: [PATCH] Add SDL Demo to sources

git-svn-id: svn://kolibrios.org@6382 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 programs/demos/SDL/SDLTest.c | 92 ++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 programs/demos/SDL/SDLTest.c

diff --git a/programs/demos/SDL/SDLTest.c b/programs/demos/SDL/SDLTest.c
new file mode 100644
index 0000000000..3ca24b952c
--- /dev/null
+++ b/programs/demos/SDL/SDLTest.c
@@ -0,0 +1,92 @@
+/* Instructions to compile this file with newlib (Assuming you have set up environment
+
+kos32-gcc -c -I/home/bob/kolibrios/contrib/sdk/sources/newlib/libc/include -I/home/bob/kolibrios/contrib/sdk/sources/libpng/ -I/home/bob/kolibrios/contrib/sdk/sources/zlib -I/home/bob/kolibrios/contrib/sdk/sources/freetype/include -I/home/bob/kolibrios/contrib/sdk/sources/freetype/include -I/home/bob/kolibrios/contrib/sdk/sources/SDL-1.2.2/include/ -std=c99 -D_KOLIBRIOS -Dnskolibrios -g   -Wundef   -U_Win32 -U_WIN32 -U__MINGW32__ SDLTest.c
+
+  kos32-ld SDLTest.o -T/home/bob/kolibrios/contrib/sdk/sources/newlib/libc/app.lds -nostdlib -static --image-base 0 -lgcc -L/home/autobuild/tools/win32/mingw32/lib /home/autobuild/tools/win32/lib/libdll.a /home/autobuild/tools/win32/lib/libapp.a /home/autobuild/tools/win32/lib/libSDL.a /home/autobuild/tools/win32/lib/libc.dll.a -static -o sdltest
+
+objcopy -O binary sdltest
+
+Now sdltest is your binary to run on Kolibri for SDL Demo.
+
+/*
+
+#include <stdio.h>
+#include <SDL.h>
+
+#define WIDTH 640
+#define HEIGHT 480
+#define BPP 4
+#define DEPTH 32
+
+void setpixel(SDL_Surface *screen, int x, int y, Uint8 r, Uint8 g, Uint8 b)
+{
+    Uint32 *pixmem32;
+    Uint32 colour;  
+ 
+    colour = SDL_MapRGB( screen->format, r, g, b );
+  
+    pixmem32 = (Uint32*) screen->pixels  + y + x;
+    *pixmem32 = colour;
+}
+
+
+void DrawScreen(SDL_Surface* screen, int h)
+{ 
+    int x, y, ytimesw;
+  
+    if(SDL_MUSTLOCK(screen)) 
+    {
+        if(SDL_LockSurface(screen) < 0) return;
+    }
+
+    for(y = 0; y < screen->h; y++ ) 
+    {
+        ytimesw = y*screen->pitch/BPP;
+        for( x = 0; x < screen->w; x++ ) 
+        {
+            setpixel(screen, x, ytimesw, (x*x)/256+3*y+h, (y*y)/256+x+h, h);
+        }
+    }
+    if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
+  
+    SDL_Flip(screen); 
+}
+
+
+int main(int argc, char* argv[])
+{
+    SDL_Surface *screen;
+    SDL_Event event;
+  
+    int keypress = 0;
+    int h=0; 
+  
+    if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
+   
+    if (!(screen = SDL_SetVideoMode(WIDTH, HEIGHT, DEPTH, SDL_FULLSCREEN|SDL_HWSURFACE)))
+    {
+        SDL_Quit();
+        return 1;
+    }
+  
+    while(!keypress) 
+    {
+         DrawScreen(screen,h++);
+         while(SDL_PollEvent(&event)) 
+         {      
+              switch (event.type) 
+              {
+                  case SDL_QUIT:
+	              keypress = 1;
+	              break;
+                  case SDL_KEYDOWN:
+                       keypress = 1;
+                       break;
+              }
+         }
+    }
+
+    SDL_Quit();
+  
+    return 0;
+}