Flatulentove edukačné stránky

- returns a pointer to the current display surface

- returns a pointer to information about the video hardware

- Obtain the name of the video driver

- Returns a pointer to an array of available screen dimensions for the given format and video flags

- Check to see if a particular video mode is supported.

- Set up a video mode with the specified width, height and bits-per-pixel.

- Makes sure the given area is updated on the given screen.

- Makes sure the given list of rectangles is updated on the given screen.

Swaps screen buffers

- Sets a portion of the colormap for the given 8-bit surface.

- Sets the colors in the palette of an 8-bit surface.

- Sets the color gamma function for the display

- Gets the color gamma lookup tables for the display

- Sets the color gamma lookup tables for the display

- Map a RGB color value to a pixel format.

- Map a RGBA color value to a pixel format.

- Get RGB values from a pixel in the specified pixel format.

- Get RGBA values from a pixel in the specified pixel format.

- Create an empty SDL_Surface

- Create an SDL_Surface from pixel data

- Frees (deletes) a SDL_Surface

- Lock a surface for directly access.

- Unlocks a previously locked surface.

- Load a Windows BMP file into an SDL_Surface.

- Save an SDL_Surface as a Windows BMP file.

- Sets the color key (transparent pixel) in a blittable surface and RLE acceleration.

- Adjust the alpha properties of a surface

- Sets the clipping rectangle for a surface.

- Gets the clipping rectangle for a surface.

- Converts a surface to the same format as another surface.

- This performs a fast blit from the source surface to the destination surface.

- This function performs a fast fill of the given rectangle with some color

- Convert a surface to the display format

- Set the position of the mouse cursor.

- Creates a new mouse cursor.

- Frees a cursor created with SDL_CreateCursor.

- Set the currently active mouse cursor.

- Get the currently active mouse cursor.

- Toggle whether or not the cursor is shown on the screen.

- Specify an OpenGL library

- Get the address of a GL function

- Get the value of a special SDL/OpenGL attribute

- Set a special SDL/OpenGL attribute

- Swap OpenGL framebuffers/Update Display

- Create a YUV video overlay

- Blit the overlay to the display

- Free a YUV video overlay

- Defines a rectangular area

- Format independent color description

- Color palette for 8-bit pixel formats

- Stores surface format information

- Graphical Surface Structure

- Video Target information

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Úvod Shell Programujeme SVGALIB OpenGUI Allegro SDL OpenGL Iné Odkazy Záve	SDL Nie, toto nie je prešmyčka na hodine slovenského jazyka, kde úlohou žiakov je posledné písmeno vložiť pred prvé písmeno. A aj ten jazyk by sa tam hodil. Je to ďalšia grafická knižnica (Simple DirectMedia Layer). Domovská stránka na http://www.libsdl.org/index.php poskytne bližšie informácie, download zdrojového paklíka (v marci 2003 verzia 1.2.5) a tiež množstva aplikácií vyžadujúcich túto knižnicu. Zaujímavé sú najmä dva súbory: SDL-1.2.5.tar.gz sdldoc-html.tar.gz Inštalácia SDL Skopírujeme a štandardne rozbalíme paklíky niekde v domovskom adresári. $ tar xfz mano_paklika.tar.gz Vhupneme do podadresára SDL-1.2.5 a štandardne nainštalujeme knižnicu (./configure, make, (root) make install). Použitie SDL #include <SDL/SDL.h> $ gcc -o Priklad_1 Priklad_1.cc `sdl-config --libs` Príklad_1.cc /* * Priklad_1 pre vyuzitie * kniznice SDL / #include <SDL/SDL.h> #include <stdio.h> int main() { SDL_Surface screen; SDL_Color colors[256]; SDL_Rect obluda; Uint32 farba; int i; printf("Inicializacia SDL\n"); / defaultne nastavenie grafiky, zvuku a casovaca / if((SDL_Init(SDL_INIT_VIDEO\|SDL_INIT_AUDIO\|SDL_INIT_TIMER)==-1)) { printf("Mam problem s inicializaciou SDL: %s\n", SDL_GetError()); return(-1); } printf("SDL je inicializovana\n"); / nastavenie grafickeho modu 640x480x8 */ screen=SDL_SetVideoMode(640, 480, 8, SDL_SWSURFACE\|SDL_ANYFORMAT); if(!screen){ printf("Mam problem s nastavenim video modu: %s\n", SDL_GetError()); return(-1); } for(i=0;i<256;i++){ colors[i].r=i; colors[i].g=i; colors[i].b=i; } farba=SDL_MapRGB(screen->format, 0x00, 0xff, 0x00); SDL_SetColors(screen, colors, 0, 256); SDL_SetPalette(screen, SDL_LOGPAL\|SDL_PHYSPAL, colors, 0, 256); SDL_FillRect(screen, obluda, farba); SDL_UpdateRect(screen, 160, 120, 320, 240); SDL_Delay(2000); printf("Koncime ...\n"); SDL_Quit(); printf("Skoncili sme\n"); return(0); } $ gcc -o Priklad_1 Priklad_1.cc `sdl-config --libs` Podrobnejšie viď. manuálové stránky, napríklad: SDL_GetVideoSurface - returns a pointer to the current display surface SDL_GetVideoInfo - returns a pointer to information about the video hardware SDL_VideoDriverName - Obtain the name of the video driver SDL_ListModes - Returns a pointer to an array of available screen dimensions for the given format and video flags SDL_VideoModeOK - Check to see if a particular video mode is supported. SDL_SetVideoMode - Set up a video mode with the specified width, height and bits-per-pixel. SDL_UpdateRect - Makes sure the given area is updated on the given screen. SDL_UpdateRects - Makes sure the given list of rectangles is updated on the given screen. SDL_Flip Swaps screen buffers SDL_SetColors - Sets a portion of the colormap for the given 8-bit surface. SDL_SetPalette - Sets the colors in the palette of an 8-bit surface. SDL_SetGamma - Sets the color gamma function for the display SDL_GetGammaRamp - Gets the color gamma lookup tables for the display SDL_SetGammaRamp - Sets the color gamma lookup tables for the display SDL_MapRGB - Map a RGB color value to a pixel format. SDL_MapRGBA - Map a RGBA color value to a pixel format. SDL_GetRGB - Get RGB values from a pixel in the specified pixel format. SDL_GetRGBA - Get RGBA values from a pixel in the specified pixel format. SDL_CreateRGBSurface - Create an empty SDL_Surface SDL_CreateRGBSurfaceFrom - Create an SDL_Surface from pixel data SDL_FreeSurface - Frees (deletes) a SDL_Surface SDL_LockSurface - Lock a surface for directly access. SDL_UnlockSurface - Unlocks a previously locked surface. SDL_LoadBMP - Load a Windows BMP file into an SDL_Surface. SDL_SaveBMP - Save an SDL_Surface as a Windows BMP file. SDL_SetColorKey - Sets the color key (transparent pixel) in a blittable surface and RLE acceleration. SDL_SetAlpha - Adjust the alpha properties of a surface SDL_SetClipRect - Sets the clipping rectangle for a surface. SDL_GetClipRect - Gets the clipping rectangle for a surface. SDL_ConvertSurface - Converts a surface to the same format as another surface. SDL_BlitSurface - This performs a fast blit from the source surface to the destination surface. SDL_FillRect - This function performs a fast fill of the given rectangle with some color SDL_DisplayFormat - Convert a surface to the display format SDL_DisplayFormatAlpha - Convert a surface to the display format SDL_WarpMouse - Set the position of the mouse cursor. SDL_CreateCursor - Creates a new mouse cursor. SDL_FreeCursor - Frees a cursor created with SDL_CreateCursor. SDL_SetCursor - Set the currently active mouse cursor. SDL_GetCursor - Get the currently active mouse cursor. SDL_ShowCursor - Toggle whether or not the cursor is shown on the screen. SDL_GL_LoadLibrary - Specify an OpenGL library SDL_GL_GetProcAddress - Get the address of a GL function SDL_GL_GetAttribute - Get the value of a special SDL/OpenGL attribute SDL_GL_SetAttribute - Set a special SDL/OpenGL attribute SDL_GL_SwapBuffers - Swap OpenGL framebuffers/Update Display SDL_CreateYUVOverlay - Create a YUV video overlay SDL_LockYUVOverlay - Lock an overlay SDL_UnlockYUVOverlay - Unlock an overlay SDL_DisplayYUVOverlay - Blit the overlay to the display SDL_FreeYUVOverlay - Free a YUV video overlay SDL_GLattr - SDL GL Attributes SDL_Rect - Defines a rectangular area SDL_Color - Format independent color description SDL_Palette - Color palette for 8-bit pixel formats SDL_PixelFormat - Stores surface format information SDL_Surface - Graphical Surface Structure SDL_VideoInfo - Video Target information SDL_Overlay - YUV video overlay Je vhodné prezrieť si hlavičkáre v adresári /usr/include/SDL/ pred includnutím. <SDL/begin_code.h> <SDL/close_code.h> <SDL/SDL_active.h> <SDL/SDL_audio.h> <SDL/SDL_byteorder.h> <SDL/SDL_cdrom.h> <SDL/SDL_copying.h> <SDL/SDL_endian.h> <SDL/SDL_error.h> <SDL/SDL_events.h> <SDL/SDL_getenv.h> <SDL/SDL.h> <SDL/SDL_image.h> <SDL/SDL_joystick.h> <SDL/SDL_keyboard.h> <SDL/SDL_keysym.h> <SDL/SDL_main.h> <SDL/SDL_mixer.h> <SDL/SDL_mouse.h> <SDL/SDL_mutex.h> <SDL/SDL_net.h> <SDL/SDL_opengl.h> <SDL/SDL_quit.h> <SDL/SDL_rwops.h> <SDL/SDL_syswm.h> <SDL/SDL_thread.h> <SDL/SDL_timer.h> <SDL/SDL_types.h> <SDL/SDL_version.h> <SDL/SDL_video.h>
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SDL

Inštalácia SDL

Použitie SDL

Príklad_1.cc