I'm fighting from some time with taking a screenshot of Android OpenGL.The code I found is as follows:In each case the result is a png file which is completely black. I found there is some problem with glReadPixels method but I don't know how to bypass it.
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When one wants to publish his App on the Android Market he can upload up to two screenshots of his app. I would like to take these screenshots with my current device (Motorola Droid) that I'm using to test the application.
There are some Apps on the Android Market that allow you to take screenshots, but you have to root your phone, which I dont want to. There are related topics within stackoverflow where people want to take screenshots out of there code (here). However I just want to take screenshots of my running app with the current device, which is connected via USB to my computer; I'm developing via Eclipse, so there should be a way to tell your running device that it should take a screenshot via the sdk, right?
Single Threaded OpenGL game ! (check bottom, you can download and use the helper class) Lighting disabled ! Depth Buffer disabled ! Culling enabled ! Textures disabled !
Just 176 integers (x,y values only) making 88 vertexes along with 132 index numbers making "44 triangles only"
Framerates I get is
with GL_BLENDING disabled - 145 fps approx only! enabled - 110 fps approx only!
I have the screenshot of exact code in the draw function here.. just 2 damn lines ! I have hidden only the comments.. click here to see it http://prasna991.googlepages.com/drawframe.png
variable details in the 2 lines of code =========================== ipts = 176 elements (only x and y for each vertex) totallinetriangles * 3 = 176 lineindexes = 132 elements - type "short"
Here is the screenshot of output drawing and how it will look like http://prasna991.googlepages.com/screen.png
OpenGL single threaded Initialization Helper ================================ Here is my OpenGL helper class.. makes the OpenGL initialization for newbies a cakewalk http://prasna991.googlepages.com/OpenGLHelperclass.txt
I tested by rendering on the touch event only.. frame rate drops only when u touch and drag and here I have just tested by tapping and releasing gently on the emulator and on the device
Is this the device limitations ? So graphics is actually a lot lot lot slower than on iPhone ?
I would like to be able to use the OpenGL API from both Java and C (via NDK).
In Java, there is a GL object passed, which has all GL methods on it.
In C, you just talk to the native library.
In a single onDrawFrame callback (for which Java is passed a GL), can I use methods on the GL object, and also call NDK methods which access the openGL library?
In other words, is the GL object just a wrapper for the same instance of the native library?
Anyone know how to Screenshot the Dx!
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screenshot - Android app on AppBrain
and all it did was create some "blank" 1kb PNG files in the screenshot folder.
I just got my hands on this phone.
Here's my summary:
1) It's really fast. Runs all my games at max framerates.
2) The screen is 16:9 and will probably mess with your layouts and games and stuff.
3) It has a PowerVR SGX530. That's right around iPhone 3GS's GPU speed.
I believe the hardware supports OpenGL ES 2.0 but since Android doesn't, there's no way to use it right now. I did, however, dump all of the GL extensions and put them alongside the G1 and Emulator extension lists into this handy-dandy article - http://www.rbgrn.net/content/345-hands-on-motorola-droid-opengl-es-specs
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i have a requirement to place 2 overlapping image view inside a web view.the upper image view can be moved using trackball and the lower image view is static.now i want to capture the whole screen programmatically and save it as an image.i have referred this link but unable to get the solution.
View 2 Replies View RelatedHow can I take a screenshot programmatically? So far I've learned that:
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View 6 Replies View Relatedthis is a layout issue, now my app's layout is this screenshot...........
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