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Hi, I created openCL context with openGLES config , and then use clCreateFromGLTexture2D function failed, do you know why ?

kongya

Hi

In android, I created cl context from gl like this :

cl_context_properties props[] = { CL_GL_CONTEXT_KHR, eglGetCurrentContext(), CL_EGL_DISPLAY_KHR, eglGetCurrentDisplay(), CL_CONTEXT_PLATFORM, clplatform,0);

clCreateContext(props,1,&device,NULL,NULL,NULL);

and then create opengl texture, this texture can be used .  After that , I want to use opencl to calculate this texture, so I do like this :

clCreateFromGLTexture2D(clContext, CL_MEM_READ_WRITE,GL_TEXTURE_2D, 0,texturename ,&errNum);

And this function failed, the errNum returned CL_INVALID_GL_OBJECT , and I do not know why , Can you help me  ?

Thanks

Parents
  • 0 in reply to Chris Varnsverry

    just like this :

      bitmap.lockPixels();
    const int w = bitmap.width();
    const int h = bitmap.height();
    const void* p = bitmap.getPixels();
    GLint crop[4] = { 0, h, w, -h };
    texture->w = w;
    texture->h = h;
    glGenTextures(1, &texture->name);
    glBindTexture(GL_TEXTURE_2D, texture->name);
    switch (bitmap.getConfig()) {
        case SkBitmap::kA8_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kARGB_4444_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_SHORT_4_4_4_4, p);
            break;
        case SkBitmap::kARGB_8888_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kRGB_565_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
                    GL_UNSIGNED_SHORT_5_6_5, p);
            break;
        default:
            break;
    }
    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
Reply
  • 0 in reply to Chris Varnsverry

    just like this :

      bitmap.lockPixels();
    const int w = bitmap.width();
    const int h = bitmap.height();
    const void* p = bitmap.getPixels();
    GLint crop[4] = { 0, h, w, -h };
    texture->w = w;
    texture->h = h;
    glGenTextures(1, &texture->name);
    glBindTexture(GL_TEXTURE_2D, texture->name);
    switch (bitmap.getConfig()) {
        case SkBitmap::kA8_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kARGB_4444_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_SHORT_4_4_4_4, p);
            break;
        case SkBitmap::kARGB_8888_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                    GL_UNSIGNED_BYTE, p);
            break;
        case SkBitmap::kRGB_565_Config:
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
                    GL_UNSIGNED_SHORT_5_6_5, p);
            break;
        default:
            break;
    }
    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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