Sorry, I mean write the frame to a pixel buffer. I think fbo is a ES2 feature, right? What about the other ES1 phones? As a developer, you can't just give up the 75% users.
On 4月19日, 下午2时20分, Eong <eong.c...@gmail.com> wrote: > Hi, > I'm writing this part for video output. > This is for video output at most of the time. Our decoder write the > screen to a pixel buffer. And then I need to draw it to the screen. > So, you mean, I can use FBO to do this? I'm not very familiar with fbo > stuffs. Could you give more hint? > Thank you! > > On 4月18日, 下午5时18分, Robert Green <rbgrn....@gmail.com> wrote: > > > > > Eong, > > > All Mario and I are trying to say is that the thing you are trying to > > do (upload textures every frame) is generally not considered a good > > practice and workarounds usually exist that are more efficient, > > especially if you can target higher levels of opengl or use extensions > > like framebufferobjects. If you would be willing to tell us something > > a little bit more specific about what you're doing that requires a > > texture update every frame, we could potentially offer some more > > efficient ways of doing it. > > > On Apr 18, 2:44 am, Eong <eong.c...@gmail.com> wrote: > > > > Thanks, Mario. > > > I think it's somewrong with the driver or the chip. It's not just a > > > bandwidth problem. If it's really a bandwidth problem, it only has 1/7 > > > bandwidth of milestone? (150ms compare to 20ms with a full screen > > > tex).That's very funny. > > > > I'm working on some libs, which will be used for our tools and games. > > > When a full screen update only takes 20+ms, it's usable in some > > > conditions as it already gets at least 40fps. > > > > On 4月17日, 下午6时22分, Mario Zechner <badlogicga...@gmail.com> wrote: > > > > > It seems that the msm chips are notorious for having a low bandwidth. > > > > There's really no solution to that problem other than > > > > > 1) lowering your texture size > > > > 2) lowering the bit depth of the texture, e.g. instead of using > > > > RGBA8888 use RGBA444 or RGB565 > > > > 2) uploading your texture in patches, e.g. split it up into 4 smaller > > > > parts and upload one part each frame. This will probably lead to > > > > artifacts if your frame rate is low but could work otherwise. > > > > > Just out of curiousity: why do you have to upload such a big texture > > > > each frame? If you'd state your scenario in detail we might be able to > > > > suggest other solutions to the problem. > > > > > On 17 Apr., 12:10, Eong <eong.c...@gmail.com> wrote: > > > > > > Robert, > > > > > Sorry, it's not text, it's tex. I just use this to draw the > > > > > background. > > > > > I just want to know why nexus one is so slow with this. It takes > > > > > 20ms on my milestone but it takes at least 80ms on the nexus one, for > > > > > one frame. > > > > > > On 4月17日, 上午2时08分, Robert Green <rbgrn....@gmail.com> wrote: > > > > > > > Eong, > > > > > > > You said you are uploading every frame just to draw text? There are > > > > > > much more efficient ways to do that. > > > > > > > On Apr 16, 11:14 am, Eong <eong.c...@gmail.com> wrote: > > > > > > > > I'm afraid it's not a same problem. > > > > > > > My problem only happenes on Snapdragon phones. > > > > > > > It's fine on Milestone or Droid. I found a few threads about this > > > > > > > but > > > > > > > no solution. > > > > > > > > On 4月16日, 下午9时15分, Felipe Silveira <webfel...@gmail.com> wrote: > > > > > > > > > Just a guess: It can be the same error reported > > > > > > > > here:http://code.google.com/p/android/issues/detail?id=7520 > > > > > > > > > Take a look... > > > > > > > > > Felipe Silveirahttp://www.felipesilveira.com.br > > > > > > > > > On Fri, Apr 16, 2010 at 8:40 AM, Eong <eong.c...@gmail.com> > > > > > > > > wrote: > > > > > > > > > Hi, > > > > > > > > > We are developing 2D games. And we found our game works fine > > > > > > > > > except > > > > > > > > > the snapdragon chips, like Nexus one and Liquid A1. It even > > > > > > > > > runs fine > > > > > > > > > on G1. > > > > > > > > > > We use GLSurfaceView, and we useglTexImage2Dand > > > > > > > > > glTexIsubmage2D to > > > > > > > > > put on the text and then draw. > > > > > > > > > TheglTexImage2Dclass take more than 100ms on Nexus one > > > > > > > > > (1024x512 pix > > > > > > > > > tex). It's very strange, G1 is even faster than this. > > > > > > > > > If anyone know something about this? > > > > > > > > > > ---------------------Code > > > > > > > > > snip----------------------------------------------- > > > > > > > > > > > > > > > > > > gl.glClear(GL10.GL_COLOR_BUFFER_BIT > > > > > > > > > | GL10.GL_DEPTH_BUFFER_BIT); > > > > > > > > > > gl.glTexSubImage2D(GL10.GL_TEXTURE_2D, 0, 0, 0, m_width, > > > > > > > > > m_height, GL10.GL_RGB, GL_UNSIGNED_SHORT_5_6_5, m_byteCanvas); > > > > > > > > > > > > > > > > > > > ((GL11Ext)gl).glDrawTexiOES(0, 0, 0, > > > > > > > > > m_width, m_height); > > > > > > > > > > -- > > > > > > > > > You received this message because you are subscribed to the > > > > > > > > > Google > > > > > > > > > Groups "Android Developers" group. > > > > > > > > > To post to this group, send email to > > > > > > > > > android-developers@googlegroups.com > > > > > > > > > To unsubscribe from this group, send email to > > > > > > > > > android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > > > > > cr...@googlegroups.com> > > > > > > > > > For more options, visit this group at > > > > > > > > >http://groups.google.com/group/android-developers?hl=en > > > > > > > > > -- > > > > > > > > Felipe Silveira > > > > > > > > Engenharia da Computação > > > > > > > > Universidade Federal de Itajubáhttp://www.felipesilveira.com.br > > > > > > > > MSN: felipeuni...@hotmail.com > > > > > > > > ------------------------------------------------- > > > > > > > > > -- > > > > > > > > You received this message because you are subscribed to the > > > > > > > > Google > > > > > > > > Groups "Android Developers" group. > > > > > > > > To post to this group, send email to > > > > > > > > android-developers@googlegroups.com > > > > > > > > To unsubscribe from this group, send email to > > > > > > > > android-developers+unsubscr...@googlegroups.com > > > > > > > > For more options, visit this group > > > > > > > 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