SDL2 Display BMP Pictures

Promotion Ffplay + SDL2 + vs2010

SDL2 modified and added a part of the interface, and increased the support of the opponent's system platform (IOS,ANDRIOD), the display part of the change is larger, and not backward-compatible, specific reference to the official http://wiki.libsdl.org/MigrationGuide# Other_renderer_api_notes

Here is a demo using SDL2 to display a BMP picture

#include "stdafx.h" #include "SDL.h" #pragma comment (lib, "Sdl2.lib") int _tmain (int argc, _tchar* argv[]) {Sdl_windo                    W *window;              Declare A pointer sdl_init (SDL_INIT_VIDEO);
	Initialize SDL2//sdl_eventstate (sdl_windowevent_focus_gained, Sdl_ignore);
	Sdl_eventstate (Sdl_syswmevent, Sdl_ignore);

	Sdl_eventstate (Sdl_userevent, Sdl_ignore);                  Create an application windows with the following Settings:window = Sdl_createwindow ("An SDL2 window",                               Window title,//initial x position,//initial y position 640, width, in pixels,//height, in pixels sdl_window_opengl |

	Sdl_window_resizable//Flags-see below); Check that the window is successfully made if (window = = NULL) {//In the event this window could not is made.
		..
		printf ("Could not create window:%s\n", Sdl_geterror ()); Return 1;
	}//sdl_setwindowfullscreen (Window,sdl_window_fullscreen); int W =1024,h=768;
	W,h should be set to the original size of the picture sdl_renderer* render = sdl_createrenderer (window, -1,0); sdl_texture* texture = sdl_createtexture (Render,

<span style= "White-space:pre" > </span>sdl_pixelformat_bgr24,sdl_textureaccess_streaming,w,h);
	file* f = fopen ("D:\\media\\1.bmp", "RB");
	Fseek (F,0,seek_end);
	Long size = Ftell (f);
	Fseek (F,0,seek_set);
	char* buffer = new Char[size];
	Fread (BUFFER,SIZE,1,F);
	int offset = * ((int*) (buffer+10));
	char* p = buffer + offset;
	char* bmp = new Char[size-offset];
	for (int i=0; i< h;i++) {memcpy (bmp+i*1024*3,buffer+offset+ (h-i-1) *1024*3,1024*3);
	} Sdl_rect Rect;
	rect.x = 0;
	Rect.y = 0;
	RECT.W = W;

	Rect.h = h;
	Sdl_updatetexture (TEXTURE,0,BMP,3*W);
	Sdl_renderclear (render);
	Sdl_rendercopy (render, texture, NULL, NULL);

	
	Sdl_renderpresent (render);
	
	Sdl_event event1;  The window is Open:enter program loop (= sdl_pollevent) while (true) {//sdl_delay (300);
		Pause execution for 3000 milliseconds, for example sdl_pumpevents ();
		Sdl_peepevents (&event1, 1, sdl_getevent, sdl_firstevent,sdl_lastevent);
if (Event1.type = = sdl_windowevent) {			Switch (event1.window.event) {case sdl_windowevent_resized:sdl_updatetexture (texture,0,bmp,3*w);
				Sdl_renderclear (render);
				Sdl_rendercopy (render, texture, NULL, NULL);
				Sdl_renderpresent (render);
			Break
			Default:break; } else if (event1.type==sdl_keydown) {switch (event1.key.keysym.sym) {case sdlk_f:sdl_setwindowful
				Lscreen (Window,sdl_window_fullscreen_desktop);
			Break
				Case Sdlk_g:sdl_setwindowfullscreen (window,0);
			Break
				Case Sdlk_q:exit (-1);
			Break
	{}} delete[] bmp;
	delete[] buffer;

	Close and destroy the window Sdl_destroywindow (window);
	Clean up sdl_quit ();
return 0;
 }