博客园-小糊涂的移动技术BLOG(Mobile Excite World)-最新评论http://www.cnblogs.com/cnsoft/CommentsRSS.aspxMobile Dev Symbian/JavaMe/ Web Dev php/web 2.0/ Now Iphone.Opengles android is planning. zh-cnSat, 08 May 2010 11:31:15 GMTSat, 08 May 2010 11:31:15 GMTcnblogsRe:Hi guys, 48 MB of mixed Appz maybe they will be usefull...http://www.cnblogs.com/cnsoft/archive/2009/12/11/323503.html#1721780于蛋蛋于蛋蛋Fri, 11 Dec 2009 09:38:30 GMThttp://www.cnblogs.com/cnsoft/archive/2009/12/11/323503.html#1721780
于蛋蛋 2009-12-11 17:38 发表评论
]]>Re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/12/07/278420.html#1716783cougar4309cougar4309Mon, 07 Dec 2009 09:21:41 GMThttp://www.cnblogs.com/cnsoft/archive/2009/12/07/278420.html#1716783
cougar4309 2009-12-07 17:21 发表评论
]]>Re:Hi guys, 48 MB of mixed Appz maybe they will be usefull...http://www.cnblogs.com/cnsoft/archive/2009/09/12/323503.html#1644191srisriSat, 12 Sep 2009 01:28:06 GMThttp://www.cnblogs.com/cnsoft/archive/2009/09/12/323503.html#1644191
sri 2009-09-12 09:28 发表评论
]]>Re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/08/02/278420.html#1603069celiaceliaSun, 02 Aug 2009 04:07:33 GMThttp://www.cnblogs.com/cnsoft/archive/2009/08/02/278420.html#1603069
celia 2009-08-02 12:07 发表评论
]]>re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/04/29/278420.html#1515421juanjuanWed, 29 Apr 2009 06:55:12 GMThttp://www.cnblogs.com/cnsoft/archive/2009/04/29/278420.html#1515421Please send these files to me! Thx!

juan 2009-04-29 14:55 发表评论
]]>re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/04/03/278420.html#1495176bwleebwleeFri, 03 Apr 2009 09:14:14 GMThttp://www.cnblogs.com/cnsoft/archive/2009/04/03/278420.html#1495176
Thanks!

bwlee 2009-04-03 17:14 发表评论
]]>re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/03/18/278420.html#1480614小糊涂的超级blog小糊涂的超级blogWed, 18 Mar 2009 14:50:13 GMThttp://www.cnblogs.com/cnsoft/archive/2009/03/18/278420.html#1480614In fact, you can find my mail address. you can send mail to me.
at least, you should leave your mail? nothing... how can i find you!


小糊涂的超级blog 2009-03-18 22:50 发表评论
]]>re: Download TinyLine 2D http://www.cnblogs.com/cnsoft/archive/2009/03/17/278420.html#1478785kingblekingbleTue, 17 Mar 2009 02:45:40 GMThttp://www.cnblogs.com/cnsoft/archive/2009/03/17/278420.html#1478785Please send these file to me by kingble__w@163.com,
Thanks a million.

kingble 2009-03-17 10:45 发表评论
]]>re: imageNamed vs imageWithContentsOfFilehttp://www.cnblogs.com/cnsoft/archive/2008/12/26/1363032.html#1414692lipeng219901lipeng219901Fri, 26 Dec 2008 10:45:08 GMThttp://www.cnblogs.com/cnsoft/archive/2008/12/26/1363032.html#1414692- (void)layoutSubviews
{

[EAGLContext setCurrentContext:context];
[self destroyFramebuffer];
[self createFramebuffer];

set_view(self);/* initialize the object */
printf("layoutSubviews: contextwidth = %d, contextheight = %d \n", contextwidth , contextheight);

spriteData = (GLubyte *) malloc(contextwidth * contextheight * 2);// Allocated memory needed for the bitmap context
if(!spriteData) return ;

pp.should_buffer_time = 6000;
strcpy(pp.host_addr, "218.204.255.133");
pp.hostport = 9901;
strcpy(pp.play_url,"tmss://tmes_123");

pp.av_flag = 3;/* it is important */

pp.render_user_data = (void *)spriteData;/* it is not used */
pp.UI_render_image_func = (void *)render_callback;
pp.framebuffer = (void *)spriteData;

player = tmpc_init(call_back_invoke, nil, nil);
tmpc_start(player, &pp);

NSLog(@"enter layoutSubviews self = 0x%x \n", self);
}




/* generate frame and render buffer for opengl */
- (BOOL)createFramebuffer
{
glGenFramebuffersOES(1, &viewFramebuffer);/*0x01*/
glGenRenderbuffersOES(1, &viewRenderbuffer);/*0x01*/

glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);

[context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(id<EAGLDrawable>)self.layer];
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);

glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);/* output : 320 */
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);/* output: 480 */

if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES)
{
NSLog(@"failed to make complete framebuffer object %x", glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES));
return NO;
}

return YES;
}




lipeng219901 2008-12-26 18:45 发表评论
]]>re: imageNamed vs imageWithContentsOfFilehttp://www.cnblogs.com/cnsoft/archive/2008/12/26/1363032.html#1414690lipeng219901lipeng219901Fri, 26 Dec 2008 10:41:14 GMThttp://www.cnblogs.com/cnsoft/archive/2008/12/26/1363032.html#1414690
通常在类似wince/linux等等平台上，均使用 framebuffer的方式进行video的回显。但是在iphone官方sdk2.2 上，使用opengles 时 ，无法得到buffer的首地址.

使用opengles的代码如下： 其中spriteData内存指针，在播放器中，用来填写video frame的rgb565数据。 glTexSubImage2D 函数消耗较大，严重 影响系统性能 。

请楼主多多指点，opengles 应该如何使用啊 ？ msn :lipeng9901@hotmail. com 大家是知音啊，现在主要是做iphone2.2官方版本的流媒体开发，一直做手机开发，期待有机会多多交流，呵呵，少走弯路。

static int set_view(void *this)
{
myview = (EAGLView *) this;/* initialize object */
NSLog(@"set_view:myview is 0x%x \n", myview);
}


int render_callback(void *use_data, void *framebuffer, unsigned int *nextbuffer)
{
[myview drawView]; /* render texture */
}


static void call_back_invoke(void *user, int notify_id, unsigned int param)
{
return;
}

@interface EAGLView (EAGLViewPrivate)

- (BOOL)createFramebuffer;
- (void)destroyFramebuffer;

@end

@interface EAGLView (EAGLViewSprite)

- (void)setupView;

@end


@implementation EAGLView

/* vetext data : full screen display , (0, 0) is the center of the screen */
const GLfloat spriteVertices[] =
{
-1.5f, 1.5f,
1.5f, 1.5f,
-1.5f, -1.5f,
1.5f, -1.5f,
};

// Sets up an array of values for the texture coordinates.
const GLshort spriteTexcoords[] =
{
0, 0,
1, 0,
0, 1,
1, 1,
};

// You must implement this
+ (Class) layerClass
{
return [CAEAGLLayer class];
}


//The GL view is stored in the nib file. When it's unarchived it's sent -initWithCoder:
- (id)initWithCoder:(NSCoder*)coder
{
if((self = [super initWithCoder:coder])) {

// Get the layer
CAEAGLLayer *eaglLayer = (CAEAGLLayer*) self.layer;

eaglLayer.opaque = YES;
eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:FALSE], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];

/* create opengl context and frame buffer */
context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1];

/* error */
if(!context || ![EAGLContext setCurrentContext:context] || ![self createFramebuffer]) {
[self release];
return nil;
}

printf("initWithCoder ok!!!!! ");

[self setupView];

NSLog(@"3333");
}

return self;
}


player_parameter pp;







// set up opengl contetxt and view
- (void)setupView
{
printf("setupView enter !!!! \n");

contextwidth = contextheight = 512;
// Sets up matrices and transforms for OpenGL ES
glViewport(0, 0, backingWidth, backingHeight);/* view port :(320 ,480) */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrthof(-1.0f, 1.0f, -1.5f, 1.5f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);

// Clears the view with black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

// Sets up pointers and enables states needed for using vertex arrays and textures
glVertexPointer(2, GL_FLOAT, 0, spriteVertices);
glEnableClientState(GL_VERTEX_ARRAY);

glTexCoordPointer(2, GL_SHORT, 0, spriteTexcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);

// generate a texture
glGenTextures(1, &spriteTexture);/* spriteTexture is texture id number : 0x01 */

// Bind the texture
glBindTexture(GL_TEXTURE_2D, spriteTexture);

// Set the texture parameters to use a minifying filter and a linear filer (weighted average)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

// Enable use of the texture
glEnable(GL_TEXTURE_2D);

// Set a blending function to use
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);

// Enable blending
glEnable(GL_BLEND);

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, contextwidth, contextheight, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, spriteData);
printf("contextwidth = %d, contextheight = %d \n", contextwidth , contextheight);
}



// draw video in opengles
- (void)drawView
{
//NSLog(@"draw View");
static int times = 0;

[EAGLContext setCurrentContext:context];

/* refine a continous subregion of an existing-dimensional texture image
x_offset = (512 - 320)/2 = 96
y_offset = (512 - 240)/2
*/
glEnable( GL_TEXTURE_2D );

glGetBufferPointervOES(0,0,0);

glTexSubImage2D(GL_TEXTURE_2D, 0, 96, 80, 320, 240, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, spriteData);

/* following as display */
glVertexPointer(2, GL_FLOAT, 0, spriteVertices);/* spriteVertices : draw region , array element is float type */
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);/* render primitives from array data */

glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
glDisable( GL_TEXTURE_2D );

[context presentRenderbuffer:GL_RENDERBUFFER_OES];

}


@end


lipeng219901 2008-12-26 18:41 发表评论
]]>