Hi Veritatis, Yes, I meant LabelMaker.java. Sorry typo.
I don't mix the two. I only use OpenGL. I didn't know what you were referring to when you said graphics canvas + opengl mixing. The LabelMaker.java uses the graphics canvas and paint but it is to create a bitmap and texture binding for opengl. Let me summarize my observations: I will create sample app and code for google issue list that I will submit within a couple days. 1) SDK example: Sprite text Uses opengl texture GL10 binding + (GL11, GL11Ext) Labelmaker.java text drawing casting and this works fine. Draw everything in same frame. 2) Draw objects GL10 using colorbuffer,vertexbuffer,drawElements + (GL11, GL11Ext) Labelmaker.java text drawing doesn't work for me (on 2.1,2.2) if I do both in same frame. 3) Draw only objects GL10 using colorbuffer,vertexbuffer,drawElements in one frame + draw (GL11, GL11Ext) Labelmaker.java text draw in next frame without clearing the previous frame (color or depth buffer bit) works for me (on 2.1,2.2) but it throws all sorts of random colors on 2.3.3 nexus. This lead me to suspect there is some issue mixing GL11, GL11Ext casting (gldrawTextioes) and GL10 colorbuffer,vertexbuffer,drawElements in same frame. I will submit simple examples apps code for cases 2 and 3 to the issue list and I will post a link here. I think the fundamental problem is using the GL11, GL11Ext casting along with GL10 calls (these somehow might be lead to variability in device/android dependant paths). Thanks, Leo On May 17, 12:51 am, Indicator Veritatis <[email protected]> wrote: > First of all, I assume you meant LabelMaker.java, not LabelMaker.html, > since only the former is at the SDK example link you provide. But more > importantly, LabelMaker.java does NOT mix OpenGL calls and SDK > graphics calls (i.e. from android.graphics package). LabelMaker.java > uses only OpenGL. That was my point. Don't mix the two. We really > can't help you if you do. > > On May 16, 2:08 pm, Leo <[email protected]> wrote: > > > > > > > > > I use code similar to this for my step 2. > > >http://developer.android.com/resources/samples/ApiDemos/src/com/examp... > > > The whole SDK example is there under the > > spritetexthttp://developer.android.com/resources/samples/ApiDemos/src/com/examp... > > > First it draws a textured triangle and then draw sprite text. But it > > is all done in same step. > > > It does use canvas and opengl. It creates a texture image for the > > text. After going through SDK examples I figured this is right way to > > draw text in openGL? > > > In step 1 of my code, I use colorbuffer, vertexbuffer and drawelements > > functions of GL10. In step 2 I use code similar to LabelMaker.java to > > print text on top of the screen. > > > Dianne, The reason I separated step 2 from step 1 is because nothing > > works if I do step 1,2 in the same frame. Atleast separting step1 from > > step2 I can get code to work properly on 2.1 and 2.2 that are 90% of > > android users. > > > Veritatis, > > I don't have access to any other 2.3.3 phones yet, but I did visually > > verify on a friend's phone (2.3.3 gingerbread) that my code throws > > random colors onto the screen when it is time for step 2. When you say > > openGL supports rendering text, are you referring to openGL 2.0? I am > > using openGL 10 at the moment and didn't want to take a leap into open > > GL20 in my first app. But if openGL 2.0 is the way to go for rendering > > text in a opengl frame I am open to moving to that platform and I > > might have to eventually do that for all my future apps. > > > On May 16, 1:19 pm, Dianne Hackborn <[email protected]> wrote:> Oh sorry > > I missed that he was trying to mix Canvas drawing with OpenGL. If > > > so... yes, do not do that. The result is undefined. Increasingly a > > > drawing target for OpenGL will be in some wacky frame buffer layout that > > > makes sense for the hardware, so can't be touched sanely with software > > > drawing. The memory of the framebuffer may not even be visible to the > > > CPU. > > > > So it's more than not a good idea to do this, it is fundamentally broken > > > to > > > do so. The results you see will vary across different devices and > > > hardware > > > depending on how they work internally. > > > > On Mon, May 16, 2011 at 8:08 PM, Indicator Veritatis > > > <[email protected]>wrote: > > > > > It is not a good idea to mix on the same surface, draws using OpenGL > > > > and draws using the SDK's graphics. That is asking for confusing bugs > > > > -- like what you are seeing. Nor should it be necessary, as OpenGL > > > > supports drawing text. > > > > > That said, I cannot assert with any certainty that this is the cause > > > > of your problem. You have too many variables: varying SDK, varying > > > > hardware platform. But I do have to echo Dianne's observation that SDK > > > > version has little or nothing to do with OpenGL version. I won't go as > > > > far as to say 'nothing', since as I recall, the latest version of the > > > > SDK supports a later version of OpenGL (or was is ES? I forget) than > > > > 1.5 and 1.6 did. But your posts make it sound like the real problem > > > > has nothing to do with SDK version, and much more likely everything to > > > > do with the OEM's implementation of the device dependent primitives > > > > OpenGL relies on. Is it really only on the Nexus that you see the > > > > failure? Have you tried 2.3.3 on another phone or in the simulator? > > > > > On May 16, 10:49 am, Leo <[email protected]> wrote: > > > > > Hi Dianne, > > > > > > I will post a sample code in android sometime soon. I have problem in > > > > > my opengl app: Basic logic is as follows: > > > > > > drawframe() > > > > > { > > > > > if (time < 400) { > > > > > // step 1 > > > > > drawobjects();} else if (time < 800) { > > > > > > //step 2 > > > > > draw sprite text(); > > > > > > } > > > > > } > > > > > > I first draw the text using GL10 in step 1, then I use the SDK sprite > > > > > text to draw some notification text. I don't clear the screen between > > > > > steps 1 and 2. The code Works perfectly on android 2.1 and 2.2 (in > > > > > step 2 I can see perfectly the objects and the text), but on 2.3.3 > > > > > nexus only step 1 works when I get to the portion about draw text > > > > > (step 2) it throws all sorts of random colors on the screen. > > > > > > My minsdkversion is 4 (version 1.6). I haven't specified a target sdk > > > > > version yet. > > > > > > I was wondering if I need to step into 2.3.x android framework code to > > > > > debug this or just file a sample app code illustrating the problem and > > > > > post it as a bug. Would you recommend I post the sample code as a bug > > > > > ticket? > > > > > > -Leo > > > > > > On May 13, 5:52 pm, Dianne Hackborn <[email protected]> wrote: > > > > > > > GL10 has nothing to do with SDK version. I really don't understand > > > > what you > > > > > > are asking in relation to that. > > > > > > > You set the minSdkVersion to the minimum number you will run on. > > > > Market > > > > > > will filter your app from older versions of the platform. You set > > > > > > targetSdkVersion to the newest version you have tested on. This > > > > > > allows > > > > > > newer versions of the platform to turn off compatibility features on > > > > your > > > > > > app, many of which are described in the page I pointed to. > > > > > > > On Fri, May 13, 2011 at 9:21 PM, Leo <[email protected]> wrote: > > > > > > > > Hi Dianne, > > > > > > > > That page lists what each version number's code name is but that > > > > > > > is > > > > > > > not I am seeking. > > > > > > > > I have more fundamental question. > > > > > > > > Say if I have opengl GL10 calls in my app and I have set minSDK > > > > > > > level > > > > > > > to 4 and targetSDK level 5 in my manifest and the app runs on a > > > > > > > phone > > > > > > > that has 2.3 Gingerbread where do the opengl library code get > > > > > > > pulled > > > > > > > from > > > > > > > > level 3, level 4 or gingerbread. > > > > > > > > In particular I am wondering what are parameters to consider when > > > > > > > setting minSDK level and targetSDK level if I am interested in > > > > > > > targeting 2.1 and 2.2 and 2.3+ users. > > > > > > > > If I released an app with min SDK level 4, can I then change the > > > > > > > min > > > > > > > SDK level to higher number in upgrades or I am stuck with min SDK > > > > > > > level 4 for the lifetime of the app? > > > > > > > > Thanks, > > > > > > > Leo > > > > > > > > On May 13, 1:57 pm, Dianne Hackborn <[email protected]> wrote: > > > > > > > > The mappings between code names, version numbers, and API > > > > > > > > levels is > > > > here: > > > > >http://developer.android.com/reference/android/os/Build.VERSION_CODES... > > > > > > > > > On Fri, May 13, 2011 at 8:55 PM, Leo <[email protected]> > > > > > > > > wrote: > > > > > > > > > > Can somebody clarify where the java libraries get pulled from > > > > with > > > > > > > > > regard to > > > > > > > > > > Min SDK version vs target SDK version vs actual device android > > > > > > > > > version. > > > > > > > > > > When compiling in SDK I see min SDK version android*.jar > > > > > > > > > getting > > > > > > > > > pulled into referenced libraries by the eclipse plugin. But > > > > > > > > > how > > > > does > > > > > > > > > that referenced library relate to the libraries specified in > > > > target > > > > > > > > > SDK and the version of android running on device is a little > > > > unclear > > > > > > > > > to me. > > > > > > > > > > By library - I mean android framework classes that are needed > > > > > > > > > to > > > > run > > > > > > > > > the app. > > > > > > > > > > -- > > > > > > > > > You received this message because you are subscribed to the > > > > Google > > > > > > > > > Groups "Android Developers" group. > > > > > > > > > To post to this group, send email to > > > > > > > [email protected] > > > > > > > > > To unsubscribe from this group, send email to > > > > > > > > > [email protected] > > > > > > > > > For more options, visit this group at > > > > > > > > >http://groups.google.com/group/android-developers?hl=en > > > > > > > > > -- > > > > > > > > Dianne Hackborn > > > > > > > > Android framework engineer > > > > > > > > [email protected] > > > > > > > > > Note: please don't send private questions to me, as I don't have > > > > time to > > > > > > > > provide private support, and so won't reply to such e-mails. > > > > > > > > All > > > > such > > > > > > > > questions should be posted on public forums, where I and others > > > > > > > > can > > > > see > > > > > > > and > > > > > > > > answer them. > > > > > > > > -- > > > > > > > You received this message because you are subscribed to the Google > > > > > > > Groups "Android Developers" group. > > > > > > > To post to this group, send email to > > > > [email protected] > > > > > > > To unsubscribe from this group, send email to > > > > > > > [email protected] > > > > > > > For more options, visit this group at > > > > > > >http://groups.google.com/group/android-developers?hl=en > > > > > > > -- > > > > > > Dianne Hackborn > > > > > > Android framework engineer > > > > > > [email protected] > > > > > > > Note: please don't send private questions to me, as I don't have > > > > > > time > > > > to > > > > > > provide private support, and so won't reply to such e-mails. All > > > > > > such > > > > > > questions should be posted on public forums, where I and others can > > > > > > see > > > > and > > > > > > answer them. > > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "Android Developers" group. > > > > To post to this group, send email to [email protected] > > > > To unsubscribe from this group, send email > > ... > > read more » -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
