Spray The Wall - simple free game

[zbych]

After some fight with texture managment my first game with jPCT is ready. Unfortunately I was unable to do dynamic texturing using only GLSL and render to texture, I had to stay with idea of realoading texture every time it becomes "dirty", it is bottleneck of game loop
The game has option to disable shaders and use GLES 1.x
Your task in this game is to paint graffiti as close as possible to given template.

https://play.google.com/store/apps/details?id=com.zr.spray.wall

[Thomas.]

game does not work in OpenGL v2 and also v1 on my Galaxy S... walls are grey

[zbych]

I have tested it on Samsung Galaxy Mini, Galaxy S2, LG GT540. I have run it once on HTC but not sure what type, HTC was slowest but all those device rendered scene correctly.

[EgonOlsen]

Doesn't work correctly on a Nexus S either. It's all grey in both modes. I can have a look at the log output when i get back home tomorrow.

[Thomas.]

In log is nothing with error...

[EgonOlsen]

Not an error, but maybe some odd behaviour regarding context switches or something like that. It might help if a version with the Logger being set to debug would be available.

[zbych]

Odd behaviour is on my side. I know this game would cause troubles on some devices.

The problem exists because I'm not using default jPCT texture load procedure. I will explain how this game works.

Texutre image is in "system" memory where I use Context to paint with spray, when this
is done I have to load texture into graphic memory, in onDraw, before objects are drawn i call:

GLES20.glActiveTexture(GLES10.GL_TEXTURE0);
GLES20.glBindTexture(GLES10.GL_TEXTURE_2D, myTextureId);
GLUtils.texSubImage2D(GLES10.GL_TEXTURE_2D, 0, 0, 0, wallBitmap);

after this sequence I do "normal" drawing:
frameBuffer.clear();
world.renderScene(frameBuffer);
world.draw(frameBuffer);

but wall objects have set render hook, and in beforeRendering() I execute sequence:

GLES10.glActiveTexture(GLES10.GL_TEXTURE0);
GLES10.glBindTexture(GLES10.GL_TEXTURE_2D,  myTextureId);
if(_useGL20) {
  shader.setUniform("textureUnit0", 0);
  GLES10.glActiveTexture(GLES20.GL_TEXTURE1);
  GLES10.glBindTexture(GLES20.GL_TEXTURE_2D, bumpTextureId);
  shader.setUniform("textureUnit1", 1);
  GLES10.glActiveTexture(GLES10.GL_TEXTURE0);
}

It works on emulator, and on other devices when I was testing it.
I know it is unusual way to use this engine, but this is the fastest way of load texture into opengl I know so far.

[EgonOlsen]

Well, in that case...happy debugging. Stuff like texSubImage2D doesn't work too well on PowerVR devices IIRC.