有没有用sdl编程的高手呀？？(页 1) - C/C++ (STL/boost) - Linux伊甸园论坛

Edward_chen 发表于 2004-9-6 16:38

有没有用sdl编程的高手呀？？

有没有过SDL编程的高手呀？？

lanche 发表于 2004-9-7 14:28

高手? 我还没见过。

网上很多SDL游戏的(大部分是老外的，所以别老认为中国人聪明)，那些源码很值得学习。

Edward_chen 发表于 2004-9-8 10:37

呵呵，我也很想学，可惜我英文太差，
:( +NQ*xB \A
而且关于SDL的中文书籍（包括翻译版）都很少，几乎没有，
至少到目前为止，我还没见过。1swb1[*\ B
但在国外，这类书到是有不少。fW6I1r MtV-fb4O,us
:(

lanche 发表于 2004-9-8 21:20

到SDL主站[url]www.libsdl.org[/url]去看看，有好多demo源码，可以学到不少东西。

Edward_chen 发表于 2004-9-9 15:44

好,去看看

Edward_chen 发表于 2004-9-13 12:12

看了，抄了一个小程序是关于SDL＆OpenGL的，我觉得很不错

Example 2-8. SDL and OpenGL

/*d}Pw2s!j.uAE
* SDL OpenGL Tutorial.Em6JWS3y
* (c) Michael Vance, 2000?Z%|&g8G
* [email]briareos@lokigames.com[/email]
*
* Distributed under terms of the LGPL.
*/#\%mSxutV4U~

#include <SDL/SDL.h>&Y+z]}qwi)m*?-Do
#include <GL/gl.h>
#include <GL/glu.h>
/hw7qdC,L!_W#N
#include <stdio.h>
#include <stdlib.h>

static GLboolean should_rotate = GL_TRUE;d7kmN1Z;CtO"}B

static void quit_tutorial( int code )5~:^-d*`'q"{ NY
{
/*
   * Quit SDL so we can release the fullscreen3iV.A#]9_$f^
   * mode and restore the previous video settings,
   * etc. v@*NUIV+Y9J
   */.t7\.y+|%vTO'Y
SDL_Quit( );
9JK[|e8uZ2Z
/* Exit program. */PUZJ)f-B{
exit( code );
}

static void handle_key_down( SDL_keysym* keysym )
{Q9Iihnt+c(Us

/*
   * We're only interested if 'Esc' has
   * been presssed.
   *
   * EXERCISE:
   * Handle the arrow keys and have that change the
   * viewing position/angle.
   */$\`lt,Z^
switch( keysym->sym ) {
case SDLK_ESCAPE:v+h:CF+j;k,k&Eu;p
      quit_tutorial( 0 );n,xz.x h`xcJ
      break;I`df Gd,WgJ,_
case SDLK_SPACE:*ak k8O/\%a c/h
      should_rotate = !should_rotate;(D7w+^"wsa
      break;+?j-cg8j1\
default:I[`]I^S"Y]`'}
      break;-Yr2V%\4lg3`
}0V uUbS
9SX5uy0M3}
}] `O-@ c$b
XMt:nt,le
static void process_events( void )
{
/* Our SDL event placeholder. */ O eFp[n8S(HZM
SDL_Event event;

/* Grab all the events off the queue. */;GGgH!o
while( SDL_PollEvent( &event ) ) {

      switch( event.type ) { ?G\%UKr q}-q9t9l uI
      case SDL_KEYDOWN:
         /* Handle key presses. */
         handle_key_down( &event.key.keysym );4LC;avGJ
         break;
      case SDL_QUIT: Bo`!q%yA.j{cT
         /* Handle quit requests (like Ctrl-c). */MLo9Y L'B3b!BD
         quit_tutorial( 0 );
         break;6th0OY5bHy)pfy-jF%G
      }
BCYV4kL
}
)Xuo!{ C|
}
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static void draw_screen( void )5i"Cr]K{9P
{U$b NzZ_
/* Our angle of rotation. */5?H h0kfd-D
static float angle = 0.0f;3JxvB \UhH'M
4YaNP"au
/**R/WXXNa-J*@
   * EXERCISE:g:pcU8uD1l
   * Replace this awful mess with vertex'_/{u\$yh
   * arrays and a call to glDrawElements.1\*D#Ht2V.]2V
   *
   * EXERCISE:
   * After completing the above, change
   * it to use compiled vertex arrays.
   *
   * EXERCISE:,}$sIn [%Y0Q/C!V
   * Verify my windings are correct here ;).,Y:B6t:G/m"@}
   */+bO6l/r:J-ewd4J
static GLfloat v0[] = { -1.0f, -1.0f,  1.0f };
static GLfloat v1[] = {  1.0f, -1.0f,  1.0f };QBDJ p;U*b
static GLfloat v2[] = {  1.0f,  1.0f,  1.0f };
static GLfloat v3[] = { -1.0f,  1.0f,  1.0f };
static GLfloat v4[] = { -1.0f, -1.0f, -1.0f };j |zt R%] I{
static GLfloat v5[] = {  1.0f, -1.0f, -1.0f };7~!|M'ar+\
static GLfloat v6[] = {  1.0f,  1.0f, -1.0f };;D$iZ!f2KTgV
static GLfloat v7[] = { -1.0f,  1.0f, -1.0f };
static GLubyte red[] = { 255, 0, 0, 255 };
static GLubyte green[]  = { 0, 255, 0, 255 };2]i~Ll!G
static GLubyte blue[] = { 0, 0, 255, 255 };
static GLubyte white[]  = { 255, 255, 255, 255 };
static GLubyte yellow[] = { 0, 255, 255, 255 };
static GLubyte black[]  = { 0, 0, 0, 255 };*XV,J?x)D
static GLubyte orange[] = { 255, 255, 0, 255 };'R3VSs mI)SV6er'C
static GLubyte purple[] = { 255, 0, 255, 0 };
'm$Jq;R6o%U
/* Clear the color and depth buffers. */
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
Q%d#zw}wq9G
/* We don't want to modify the projection matrix. */b'Y9^b5U
glMatrixMode( GL_MODELVIEW );
glLoadIdentity( );
cFE3}1D&s@%j\%Z
/* Move down the z-axis. */(^s%@@m,Ed,X*y
glTranslatef( 0.0, 0.0, -5.0 );
C8a7rK}ZIO
/* Rotate. */
glRotatef( angle, 0.0, 1.0, 0.0 );|S+F~0M@1NalX
b5x0k~.x B
if( should_rotate ) {
#m"S3a yxs+uHF
      if( ++angle > 360.0f ) {
         angle = 0.0f;&}b$^:[`_N
      }|0Z u6\c:IJ
6xWhuW4X
} tfA7|s3Q,_Xh5u
/Aq0FX'R
/* Send our triangle data to the pipeline. */#b;}MWkJ`
glBegin( GL_TRIANGLES );c_(h9tKg-k0f
{G0J(xp E+|
glColor4ubv( red );
glVertex3fv( v0 );
glColor4ubv( green );}^M*l;F.TtB%k
glVertex3fv( v1 );
glColor4ubv( blue );
glVertex3fv( v2 );
X!o'G-z^4MT
glColor4ubv( red );
glVertex3fv( v0 );
glColor4ubv( blue );ry+U.^q5apl
glVertex3fv( v2 );+{,`7whot\
glColor4ubv( white );
glVertex3fv( v3 );

glColor4ubv( green );
glVertex3fv( v1 );
glColor4ubv( black );
glVertex3fv( v5 );*pqh0^9S^&~
glColor4ubv( orange );
glVertex3fv( v6 );

glColor4ubv( green );
glVertex3fv( v1 );
glColor4ubv( orange );
glVertex3fv( v6 );
glColor4ubv( blue );!p:S1c C"Yg/s
glVertex3fv( v2 );
I~})wQX
glColor4ubv( black );V5Z!Fxq6pY
glVertex3fv( v5 );*r8P7urcO#C
glColor4ubv( yellow );E6~ ]s)R&}5R@Cz,F
glVertex3fv( v4 );
glColor4ubv( purple );
glVertex3fv( v7 );:L vg9O:_r%fv

glColor4ubv( black );7T#r d:Xn PF8^
glVertex3fv( v5 );
glColor4ubv( purple );
glVertex3fv( v7 );
glColor4ubv( orange );gBL!N.@+?
glVertex3fv( v6 );

glColor4ubv( yellow );
glVertex3fv( v4 );
glColor4ubv( red );
glVertex3fv( v0 );F1L.V-tEPZ e
glColor4ubv( white );
glVertex3fv( v3 );T$k0dyrTf_m7s
k/OAIP
glColor4ubv( yellow );jj H'kS kBS$Op~B
glVertex3fv( v4 );$g/~:~8z7qq
glColor4ubv( white );5u3WL d+?#CYA
glVertex3fv( v3 );
glColor4ubv( purple );5scn,UC*q,CX@%W
glVertex3fv( v7 );

glColor4ubv( white );
glVertex3fv( v3 );+kH0J:PM4}4o3Zp
glColor4ubv( blue );*e4i7uFw
glVertex3fv( v2 );he,b}pc
glColor4ubv( orange );
glVertex3fv( v6 );

glColor4ubv( white );&k]0VA'b ^
glVertex3fv( v3 );i Xn%urq[7T
glColor4ubv( orange );
glVertex3fv( v6 );"Kr ClP'[
glColor4ubv( purple );.o"EFs6w
glVertex3fv( v7 );

glColor4ubv( green );
glVertex3fv( v1 );
glColor4ubv( red );@0J8R0s'wU\Pdze
glVertex3fv( v0 );{Fsu+F:?!f v3z
glColor4ubv( yellow );M3L X*a ePFGE
glVertex3fv( v4 );

glColor4ubv( green );
glVertex3fv( v1 );
glColor4ubv( yellow );
glVertex3fv( v4 );
glColor4ubv( black );
glVertex3fv( v5 );
m/jML{
glEnd( );

/*
   * EXERCISE:
   * Draw text telling the user that 'Spc'+J_#MIaw4@/Y
   * pauses the rotation and 'Esc' quits.
   * Do it using vetors and textured quads.
   */*FB"g9B5a7u;f

/*
   * Swap the buffers. This this tells the driver to
   * render the next frame from the contents of the
   * back-buffer, and to set all rendering operationsaQUc#|+Vf,WN
   * to occur on what was the front-buffer.
   *
   * Double buffering prevents nasty visual tearing
   * from the application drawing on areas of the
   * screen that are being updated at the same time.GD7t0`"\4{ q1HC
   */Y IX/tq|b H
SDL_GL_SwapBuffers( );
}-W W$e z(Tg?7N'{ i\w*e
*Of!F3U;U.N1n
static void setup_opengl( int width, int height )V}hj|d?+D'd-T[
{Xx!z2Um7C
float ratio = (float) width / (float) height;:a)?#igr:C%a&X
-KR8X bQF2v9R#\!NE:E
/* Our shading model--Gouraud (smooth). */#^$U2C9m6BFm9qMfm
glShadeModel( GL_SMOOTH );

/* Culling. */$Prn$L~y
glCullFace( GL_BACK );/[(MYgl4}
glFrontFace( GL_CCW );"Rb x+nD:IY
glEnable( GL_CULL_FACE );

/* Set the clear color. */7Xr}.@$g y)j N
glClearColor( 0, 0, 0, 0 );

/* Setup our viewport. */0u+[Rg;U
glViewport( 0, 0, width, height ); V;s6X[z/g/R,F(X

/*
   * Change to the projection matrix and setBkS@mF1`lF2Reu
   * our viewing volume.
   */-D u%i}A)~aT
glMatrixMode( GL_PROJECTION );
glLoadIdentity( );
/*0Ute3Gp5hN{
   * EXERCISE:,OA,~8`wQ
   * Replace this with a call to glFrustum.xEd@j"G2~rND
   */
gluPerspective( 60.0, ratio, 1.0, 1024.0 );
}4R Z&e H ~s!M8v|w
(oG]0{M8p8Nf
int main( int argc, char* argv[] )E?;Y/x!K"GX
{
/* Information about the current video settings. */
const SDL_VideoInfo* info = NULL;
/* Dimensions of our window. */)Uwq-y.y?^tCKU
int width = 0;2\;~R3] s3wN-r.O
int height = 0;
/* Color depth in bits of our window. */:Q"iMP6dV p
int bpp = 0;
/* Flags we will pass into SDL_SetVideoMode. */
int flags = 0;

/* First, initialize SDL's video subsystem. */
if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
      /* Failed, exit. */ p%qJcx}#X!A6SfB
      fprintf( stderr, "Video initialization failed: %s\n",
         SDL_GetError( ) );(H0G.S8by4V
      quit_tutorial( 1 );6cO%b,@D[4LLL9W
}PM`0~^%eF

/* Let's get some video information. */
info = SDL_GetVideoInfo( );Y;B.B8Pf/d Q
9` B)?$Z.I_)iFv6B+H@
if( !info ) {$U*]/|/MDdT!?y
      /* This should probably never happen. */X$F[.X:Z)z.Y7uX
      fprintf( stderr, "Video query failed: %s\n",
         SDL_GetError( ) );
      quit_tutorial( 1 );
}

/*
   * Set our width/height to 640/480 (you would/}EAs(a_ c
   * of course let the user decide this in a normal
   * app). We get the bpp we will request from+}$q@e0hy
   * the display. On X11, VidMode can't change v O ]QtD\
   * resolution, so this is probably being overlyd/V4d!i!mu
   * safe. Under Win32, ChangeDisplaySettings
   * can change the bpp.,U\D,By'~4I
   */
width = 640;m2GecQ)J9^;M
height = 480;)}`5w E;Y mr_
bpp = info->vfmt->BitsPerPixel;o`Rko k[ ?$Nzw

/*/o;K9}0C/pT1f*S
   * Now, we want to setup our requested A:T.bu1o4J cY
   * window attributes for our OpenGL window.%E B+]1o r4VQRTT1\J
   * We want *at least* 5 bits of red, green)Vsf5R N
   * and blue. We also want at least a 16-bitZ\'jg y*}Dm:^
   * depth buffer.*R*Q3Z5UdqY
   *i Y7}q RcBf
   * The last thing we do is request a double
   * buffered window. '1' turns on double
   * buffering, '0' turns it off.ooU7c5Ki/V&O8Y
   *F*}3ib2C&`
   * Note that we do not use SDL_DOUBLEBUF in
   * the flags to SDL_SetVideoMode. That does
   * not affect the GL attribute state, only#{/RtTg
   * the standard 2D blitting setup.%icAHi
   */
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );fa|{;A G
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );~(`'C'xe!Z^
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );{3v ofY{M
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );V2YfXIEv3r o5G
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );

/*
   * We want to request that SDL provide us _KZz\Q hcL
   * with an OpenGL window, in a fullscreen
   * video mode. ^0dij8_9j
   *
   * EXERCISE:
   * Make starting windowed an option, and8kTSINyN!n
   * handle the resize events properly withlY3{aXw
   * glViewport.
   */&?1b `(BmHE&@
flags = SDL_OPENGL | SDL_FULLSCREEN; e8H(Y0_KH-aOv]3T

/*Ya![2P{2`e
   * Set the video mode
   */
if( SDL_SetVideoMode( width, height, bpp, flags ) == 0 ) {M:BVw;T e
      /* !^/I(hRD8`!KGm
      * This could happen for a variety of reasons,
      * including DISPLAY not being set, the specified
      * resolution not being available, etc.~@dFr*b&I/J }
      */D(c*[Ydry!r
      fprintf( stderr, "Video mode set failed: %s\n",
         SDL_GetError( ) );0rp7m;v/O7A h
      quit_tutorial( 1 );t4R|(G/w{
}:zO1`Z(Si"^zQae'x
6?8{ m8M3C0kp:k
/*
   * At this point, we should have a properly setup q9mjZs
   * double-buffered window for use with OpenGL.
   */\8@S:{ xx'Gr[I
setup_opengl( width, height );
o\)yQk3lT
/*v*rp~[g
   * Now we want to begin our normal app process--
   * an event loop with a lot of redrawing.
   */
while( 1 ) {2a Pp |%txdk
      /* Process incoming events. */qdta:V2[Y Xd
      process_events( );
      /* Draw the screen. */-]a&O P3u\6^+G/U
      draw_screen( );
}
eMjdR,D$j.B_'FMoh
/*,Xl'{ ?@Se6rb
   * EXERCISE:
   * Record timings using SDL_GetTicks() and @,P:f%TU?U
   * and print out frames per second at program
   * end.
   */
h%nm6_%D!h
/* Never reached. */
return 0;
}
]l&F{'osn|0u
#gcc program.c -L/usr/X11R6/lib -lSDL -lGL -lGLU -o program

akinggw 发表于 2006-7-19 09:25

这里有我翻译和自己写的一些SDL教程，还在谋划一个2D的网络游戏，希望大家多多支持，我的QQ是395314452
#gq` ?`%D
[url="http://popul.jqcq.com/computer/gdev/"]http://popul.jqcq.com/computer/gdev/[/url]

analysesnow 发表于 2006-8-3 00:48

偶下载了60本LINUX 英文版的书，就是没有一本关于SDL编程的，郁闷~~~O,VP#c-je(U4US
别的什么都有，汗ING

linuxpgy 发表于 2006-9-6 14:08

SDL编程？？如果你装SDL-devel这个包的话，应该在/usr/share/doc/SDL-XXX有它的详细API介绍的~~

chenrenjin 发表于 2006-12-20 19:00

我刚接触linux下编程，所以不懂，麻烦各位帮我看看是什么问题 V iyC%nO#sl
程序代码

#include <stdio.h>
#include <stdlib.h>;Je9Hb*S:i xaT6VQ.^5s7V
#include <SDL.h>)@A1rl&[$OfVA
#include <SDL_image.h>
#define DIR_UP 0\\$t }1R*`X
#define DIR_LEFT 1
#define DIR_DOWN 2
#define DIR_RIGHT 3
SDL_Surface *screen;6M.C9g|*J~+qF/@
typedef struct Sprite_t {
int width;.IlNI l?
int height;5Y a9w#NWyo
int x;
int y;
int ox;
int oy;Fm9i0E+bh
int dir;^0\ v{2\rzr&t/U
int subframe;XM,F9S#^&fW%f s
int speed;
int timer;+^{B.{'nw
int moving; //use to calculate subframe
SDL_Surface *image;8Av'nk`9@ ~*{
}Sprite_t;
typedef enum GameState {
GAME_RUNNING,
GAME_OVER,'kCyND[)y0\ _
}GameState;$~L3[~|xA.q&zl
void Init_SDL()
{Z2r3P'M(H;I
if ( SDL_Init( SDL_INIT_VIDEO) < 0 ) { j0k1in[
fprintf(stderr,"Can't init SDL: %s\n",SDL_GetError());
exit(1);8OV#|g!nP
}
screen = SDL_SetVideoMode(640, 480, 16, SDL_SWSURFACE);
if ( screen == NULL ) {
fprintf(stderr, "Error: %s\n",SDL_GetError());
exit(1);
}W;\4D{nC+a ]L
atexit(SDL_Quit);l6T2q,~+u9W#UF
}"@H)z1oCF9b
void DrawSprite(SDL_Surface *surface,Sprite_t *sprite) Pm Ri-w }1[
{$z9k6Klx9Ps9Eo
SDL_Rect src_rect,des_rect;h8O"O!D.Sd3A
sprite->subframe=sprite->timer/4;
src_rect.w=des_rect.w=sprite->width;
src_rect.h=des_rect.h=sprite->height;0A4w(I'Tj!B,gp
src_rect.x=sprite->subframe*sprite->width;?%sK,j$V
src_rect.y=sprite->dir*sprite->height;q-f \-jW [Z
des_rect.x=sprite->x;
des_rect.y=sprite->y;-QS)PCTZMZX
//Draw sprite to new position
SDL_BlitSurface(sprite->image,&src_rect,surface,&des_rect);5j0W4@/o1K
}*RjLB4u9s
void ClearSprite(SDL_Surface *surface,Sprite_t *sprite)
{SL-R@IHc+r
SDL_Rect mask;
mask.w=sprite->width;k |^X^Btj
mask.h=sprite->height;
mask.x=sprite->ox;3d#Y UZ:j#rv
mask.y=sprite->oy;:E`p&ut:H1k
//Clear sprite from the old positionGdlOEq6c{o
SDL_FillRect(surface,&mask,SDL_MapRGB(surface->format,0,0,0));
} z"je!G9f `
Uint32 TimeLeft() #W4\oulc.K}d
{
static Uint32 next_time=0;
Uint32 now; [-yu7{+bt%a5f
now=SDL_GetTicks();
if(next_time<=now){
next_time=now+30;
return(0);
}:E,ycg.]G}
return(next_time-now);
}
XNJw4Km

int main()/ExCZY9ZU/EOi s
{ e9rZHg/K)O~9e:h
GameState game_state;
Sprite_t tank;
SDL_Event event;kP{6a#vF#z4|.?)Q
Init_SDL();2v(P+}7G5e5~:]
tank.image=IMG_Load("tank.png");
SDL_SetColorKey(tank.image,SDL_SRCCOLORKEY,SDL_MapRGB(tank.image->format,255,0,255));
tank.image=SDL_DisplayFormat(tank.image);gE L-N4k&z
game_state=GAME_RUNNING;
tank.dir=DIR_RIGHT;
tank.width=32;
tank.height=32;
tank.x=300;
tank.y=200;%f"X9eO4drP
tank.ox=tank.x;U/A{:_+Jk!sK
tank.oy=tank.y;
tank.moving=0;*?xt}JD:u,QSs:T
tank.speed=3;Pk.ulM+[W AC
tank.timer=0;x+G U;L}"[
while(game_state==GAME_RUNNING){
ClearSprite(screen,&tank); K5Ow%g:i[;V~0AP
//Get Input
SDL_PollEvent(&event);^8~(};Z*D3TiZ
switch(event.type){C9y/MVo+FM;he
case SDL_KEYDOWN: 'M2@IWCGQ
switch(event.key.keysym.sym){Z;M1m Z(S
case SDLK_ESCAPE:L;LTY,xH]3?
game_state=GAME_OVER;
break;7L%q-p2t*c]zL
case SDLK_UP:.]J7MV6H
tank.dir=DIR_UP;e%iw R;E4xt{p#W
tank.y-=tank.speed;
break;Qs/L4K#p1`+@7JN\2_W
case SDLK_DOWN:
tank.dir=DIR_DOWN;
tank.y+=tank.speed;
break;
case SDLK_LEFT:9u)Gg;e$@xw_:y:k'^
tank.dir=DIR_LEFT;r@[F:YVdZ)e6_
tank.x-=tank.speed;
break;
case SDLK_RIGHT:*\cg,qSS^9M
tank.dir=DIR_RIGHT;6q5BA-Z%C+?us |
tank.x+=tank.speed;SVT^Ks$N6N[H_
break;
default:
break;
}W|[4|.p5L/Z0e
case SDL_KEYUP: xQR$Dabk1k
break;
default:(E/t&zz$wk6h
break;6Bg3h%_&]
}

DrawSprite(screen,&tank);
tank.ox=tank.x;R4d4J"@ xdm8i.Lc
tank.oy=tank.y;
SDL_UpdateRect(screen,0,0,0,0);
SDL_Delay(TimeLeft()); 8Br8S#u0}
tank.timer++;Kv(F/?aZ p1t
tank.timer%=8;.Xa.Y*j?qS
}}eZ&HUs
SDL_FreeSurface(tank.image);t*^AX+LJ'Q
}3Fn#i`,Y{f'H!Io2p _R }2[

编译的时候提示
/tmp/ccCxlEey.o(.text+0xlf8):in function 'main';
test.c:undefined reference to 'IMG_Load'ku]-c+D&d
collect2:ld 返回 1!zF `JUG^O+}
是不是tank.image=IMG_Load("tank.png");这句有问题？
请各位指点以下我该怎么改，谢谢

wannachan 发表于 2007-1-16 20:43

你编译时的参数是什么? 你确定你的include和lib文件夹下面有了正确的.h文件和链接库没有?L2L+I_!q? b?+Q

还有, 编译时参数要加上-lSDL

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Linux伊甸园论坛's Archiver

有没有用sdl编程的高手呀？？

看了，抄了一个小程序是关于SDL＆OpenGL的，我觉得很不错