Linux/TDA2PXEVM: [OpenGL] how to load picture into texture

Hello all:
we are using SgxRender1x1 sample to show the JPG picture, see the code as following (if use camera texture, then it will show camera image corrtectly).

static const GLfloat gSgxRender1x1_triangleVertices_fullscreen[] = {
        -1.0f, 1.0f, 0.0f,
        -1.0f, -1.0f, 0.0f,
        1.0f, -1.0f, 0.0f,
        1.0f, 1.0f, 0.0f
 };


GLuint *textureIds ;



int SgxRenderAVM_setup(SgxRenderAVM_Obj *pObj)
{
    SgxRender1x1_setup(&pObj->render1x1Obj);


  int numTextures = 1;
  
     // init il, multi init is ok
     ilInit();
     
     /* create and fill array with DevIL texture ids */
     ILuint* imageIds = new ILuint[numTextures];
     ilGenImages(numTextures, imageIds); 
  
     /* create and fill array with GL texture ids */
     textureIds = new GLuint[numTextures];
     glGenTextures(numTextures, textureIds); /* Texture name generation */
         eglCheckGlError("glGenTextures");
     printf("numTextures %d \n",numTextures);
  
  
     /* get iterator */
  
  
         ilBindImage(imageIds[0]); /* Binding of DevIL image name */
         ilEnable(IL_ORIGIN_SET);
         ilOriginFunc(IL_ORIGIN_LOWER_LEFT); 
         ILboolean success = ilLoadImage((ILstring)"/opt/vision_sdk/avm_qt_app_res/cs11/LK.JPG");
         if (success) 
         {
             /* Convert image to RGBA */
             ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE); 
  
             /* Create and load textures to OpenGL */
             glBindTexture(GL_TEXTURE_EXTERNAL_OES, textureIds[0]); 
             eglCheckGlError("glBindTexture");
             glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 
             glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, ilGetInteger(IL_IMAGE_WIDTH),
                 ilGetInteger(IL_IMAGE_HEIGHT), 0, GL_RGBA, GL_UNSIGNED_BYTE,
                 ilGetData());
               eglCheckGlError("glTexImage2D");
               printf("load ok \n");
           }else
            {

                  printf("failed to load jpg file to texture \n");


            }


  return 0;
}





void SgxRenderAVM_renderFrame(SgxRenderAVM_Obj *pObj, System_EglWindowObj *pEglWindowObj, GLuint texYuv[], UInt16 numTex )
{
    UTILS_assert(numTex==4);
    printf(" textureIds[0] %d \n", textureIds[0]);
     SgxRender1x1_renderFrame1x1(&pObj->render1x1Obj, pEglWindowObj, gSgxRender1x1_triangleVertices_fullscreen,  textureIds[0]);



and which target here should we use 

GL_TEXTURE_2D or

GL_TEXTURE_EXTERNAL_OES?

Any suggestion....

Ramprasad said:

Can you check if NV12 be used since jpeg decoder output can be NV12?

How to load the NV12 to texture? with glTexImage2D(), seem no format with NV12?

(we can convert JPEG to NV12 on PC site.)

Hi ,

UV12 format is not supported by SGX. Can you provide details of this format?

Ram

Hello:

1. we're working on visionSDK 3.05 that using SGX to render surround view.
2. we want to show the car picture which is RGB format, as discussed above that RGB is not supported to be attached to GL texture.
3. and we just wounder how we can attach RGB to texture, on other hand, which format right now, does TI support to attach texure by glTexImage2D().