static void _update_pf_viewer(QSP_ARG_DECL Platform_Viewer *pvp, Data_Obj *dp) { #ifdef HAVE_OPENGL int t; //cudaError_t e; // unmap buffer before using w/ GL if( BUF_IS_MAPPED(dp) ){ if( (*PF_UNMAPBUF_FN(PFDEV_PLATFORM(OBJ_PFDEV(dp)))) (QSP_ARG dp) < 0 ) { warn("update_pf_viewer: buffer unmap error!?"); } CLEAR_OBJ_FLAG_BITS(dp, DT_BUF_MAPPED); // propagate change to children and parents propagate_flag(dp,DT_BUF_MAPPED); } glClear(GL_COLOR_BUFFER_BIT); glBindTexture(GL_TEXTURE_2D, OBJ_TEX_ID(dp)); // is glBindBuffer REALLY part of libGLEW??? //#ifdef HAVE_LIBGLEW glBindBuffer(GL_PIXEL_UNPACK_BUFFER, OBJ_BUF_ID(dp)); //#endif // HAVE_LIBGLEW t=gl_pixel_type(dp); glTexSubImage2D(GL_TEXTURE_2D, 0, // target, level 0, 0, // x0, y0 OBJ_COLS(dp), OBJ_ROWS(dp), // dx, dy t, GL_UNSIGNED_BYTE, // type OFFSET(0)); // offset into PIXEL_UNPACK_BUFFER //#ifdef HAVE_LIBGLEW glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); //#endif // HAVE_LIBGLEW glBegin(GL_QUADS); glTexCoord2f(0, 1); glVertex2f(-1.0, -1.0); glTexCoord2f(0, 0); glVertex2f(-1.0, 1.0); glTexCoord2f(1, 0); glVertex2f(1.0, 1.0); glTexCoord2f(1, 1); glVertex2f(1.0, -1.0); glEnd(); glBindTexture(GL_TEXTURE_2D, 0); if( (*PF_MAPBUF_FN(PFDEV_PLATFORM(OBJ_PFDEV(dp))))(QSP_ARG dp) < 0 ){ warn("update_pf_viewer: Error mapping buffer!?"); } SET_OBJ_FLAG_BITS(dp, DT_BUF_MAPPED); // propagate change to children and parents propagate_flag(dp,DT_BUF_MAPPED); #else // ! HAVE_OPENGL NO_OGL_MSG #endif // ! HAVE_OPENGL }
// This is the normal display path static void update_pf_viewer(QSP_ARG_DECL Platform_Viewer *pvp, Data_Obj *dp) { #ifdef HAVE_OPENGL int t; //cudaError_t e; // unmap buffer before using w/ GL if( BUF_IS_MAPPED(dp) ){ if( (*PF_UNMAPBUF_FN(PFDEV_PLATFORM(OBJ_PFDEV(dp)))) (QSP_ARG dp) < 0 ) { WARN("update_pf_viewer: buffer unmap error!?"); } #ifdef FOOBAR e = cudaGLUnmapBufferObject( OBJ_BUF_ID(dp) ); if( e != cudaSuccess ){ describe_cuda_driver_error2("update_pf_viewer", "cudaGLUnmapBufferObject",e); NERROR1("failed to unmap buffer object"); } #endif // FOOBAR CLEAR_OBJ_FLAG_BITS(dp, DT_BUF_MAPPED); // propagate change to children and parents propagate_flag(dp,DT_BUF_MAPPED); } // //bind_texture(OBJ_DATA_PTR(dp)); glClear(GL_COLOR_BUFFER_BIT); /* sprintf(ERROR_STRING,"update_pf_viewer: tex_id = %d, buf_id = %d", OBJ_TEX_ID(dp),OBJ_BUF_ID(dp)); advise(ERROR_STRING); */ glBindTexture(GL_TEXTURE_2D, OBJ_TEX_ID(dp)); // is glBindBuffer REALLY part of libGLEW??? //#ifdef HAVE_LIBGLEW glBindBuffer(GL_PIXEL_UNPACK_BUFFER, OBJ_BUF_ID(dp)); //#endif // HAVE_LIBGLEW #ifdef FOOBAR switch(OBJ_COMPS(dp)){ /* what used to be here??? */ } #endif /* FOOBAR */ t=gl_pixel_type(dp); glTexSubImage2D(GL_TEXTURE_2D, 0, // target, level 0, 0, // x0, y0 OBJ_COLS(dp), OBJ_ROWS(dp), // dx, dy t, GL_UNSIGNED_BYTE, // type OFFSET(0)); // offset into PIXEL_UNPACK_BUFFER //#ifdef HAVE_LIBGLEW glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); //#endif // HAVE_LIBGLEW glBegin(GL_QUADS); glTexCoord2f(0, 1); glVertex2f(-1.0, -1.0); glTexCoord2f(0, 0); glVertex2f(-1.0, 1.0); glTexCoord2f(1, 0); glVertex2f(1.0, 1.0); glTexCoord2f(1, 1); glVertex2f(1.0, -1.0); glEnd(); glBindTexture(GL_TEXTURE_2D, 0); #ifdef FOOBAR e = cudaGLMapBufferObject( &OBJ_DATA_PTR(dp), OBJ_BUF_ID(dp) ); if( e != cudaSuccess ){ WARN("Error mapping buffer object!?"); // should we return now, with possibly other cleanup??? } #endif // FOOBAR if( (*PF_MAPBUF_FN(PFDEV_PLATFORM(OBJ_PFDEV(dp))))(QSP_ARG dp) < 0 ){ WARN("update_pf_viewer: Error mapping buffer!?"); } SET_OBJ_FLAG_BITS(dp, DT_BUF_MAPPED); // propagate change to children and parents propagate_flag(dp,DT_BUF_MAPPED); #else // ! HAVE_OPENGL NO_OGL_MSG #endif // ! HAVE_OPENGL }
static COMMAND_FUNC( do_new_gl_buffer ) { const char *s; Data_Obj *dp; Platform_Device *pdp; Compute_Platform *cdp; dimension_t d,w,h; #ifdef HAVE_OPENGL Dimension_Set ds; int t; #endif // HAVE_OPENGL s = NAMEOF("name for GL buffer object"); cdp = pick_platform("platform"); if( cdp != NULL ) push_pfdev_context(QSP_ARG PF_CONTEXT(cdp) ); pdp = pick_pfdev("device"); if( cdp != NULL ) pop_pfdev_context(SINGLE_QSP_ARG); w = (int)HOW_MANY("width"); h = (int)HOW_MANY("height"); d = (int)HOW_MANY("depth"); /* what should the depth be??? default to 1 for now... */ if( pdp == NULL ) return; /* Make sure this name isn't already in use... */ dp = dobj_of(s); if( dp != NULL ){ sprintf(ERROR_STRING,"Data object name '%s' is already in use, can't use for GL buffer object.",s); warn(ERROR_STRING); return; } #ifdef HAVE_OPENGL // BUG need to be able to set the cuda device. // Note, however, that we don't need GL buffers on the Tesla... //set_data_area(cuda_data_area[0][0]); set_data_area( PFDEV_AREA(pdp,PFDEV_GLOBAL_AREA_INDEX) ); ds.ds_dimension[0]=d; ds.ds_dimension[1]=w; ds.ds_dimension[2]=h; ds.ds_dimension[3]=1; ds.ds_dimension[4]=1; dp = _make_dp(QSP_ARG s,&ds,PREC_FOR_CODE(PREC_UBY)); if( dp == NULL ){ sprintf(ERROR_STRING, "Error creating data_obj header for %s",s); error1(ERROR_STRING); } SET_OBJ_FLAG_BITS(dp, DT_NO_DATA); /* can't free this data */ SET_OBJ_FLAG_BITS(dp, DT_GL_BUF); /* indicate obj is a GL buffer */ SET_OBJ_DATA_PTR(dp, NULL); //fprintf(stderr,"do_new_gl_buffer: allocating gl_info for %s\n",OBJ_NAME(dp)); SET_OBJ_GL_INFO(dp, (GL_Info *) getbuf( sizeof(GL_Info) ) ); //fprintf(stderr,"do_new_gl_buffer: DONE allocating gl_info for %s\n",OBJ_NAME(dp)); glew_check(SINGLE_QSP_ARG); /* without this, we get a segmentation * violation on glGenBuffers??? */ // We need an extra field in which to store the GL identifier... // AND another extra field in which to store the associated texid. // Why is this ifdef here? These don't seem to depend // on libglew??? // Answer: We need libglew to bring in openGL extensions like glBindBuffer... //advise("calling glGenBuffers"); //fprintf(stderr,"OBJ_GL_INFO(%s) = 0x%lx\n",OBJ_NAME(dp),(long)OBJ_GL_INFO(dp)); //fprintf(stderr,"OBJ_BUF_ID_P(%s) = 0x%lx\n",OBJ_NAME(dp),(long)OBJ_BUF_ID_P(dp)); // BUG glGenBuffers seems to require v1.5??? glGenBuffers(1, OBJ_BUF_ID_P(dp) ); // first arg is # buffers to generate? //sprintf(ERROR_STRING,"glGenBuffers gave us buf_id = %d",OBJ_BUF_ID(dp)); //advise(ERROR_STRING); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, OBJ_BUF_ID(dp) ); // glBufferData will allocate the memory for the buffer, // but won't copy unless the pointer is non-null // How do we get the gpu memory space address? // That must be with map glBufferData(GL_PIXEL_UNPACK_BUFFER, OBJ_COMPS(dp) * OBJ_COLS(dp) * OBJ_ROWS(dp), NULL, GL_STREAM_DRAW); /* buffer arg set to 0 unbinds any previously bound buffers... * and restores client memory usage. */ glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); //#endif // HAVE_LIBGLEW glGenTextures(1, OBJ_TEX_ID_P(dp) ); // makes a texture name fprintf(stderr,"new_gl_buffer: new texture name is 0x%x\n",OBJ_TEX_ID(dp)); glBindTexture(GL_TEXTURE_2D, OBJ_TEX_ID(dp) ); t = gl_pixel_type(dp); glTexImage2D( GL_TEXTURE_2D, 0, // level-of-detail - is this the same as miplevel??? OBJ_COMPS(dp), // internal format, can also be symbolic constant such as // GL_RGBA etc OBJ_COLS(dp), // width - must be 2^n+2 (border) for some n??? OBJ_ROWS(dp), // height - must be 2^m+2 (border) for some m??? 0, // border - must be 0 or 1 t, // format of pixel data GL_UNSIGNED_BYTE, // type of pixel data NULL // pixel data - null pointer means // allocate but do not copy? // - offset into PIXEL_UNPACK_BUFFER?? ); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // Why was this here? It would seem to un-bind the target??? glBindTexture(GL_TEXTURE_2D, 0); //glFinish(); // necessary or not? //advise("calling platform-specific buffer registration function"); if( (*PF_REGBUF_FN(PFDEV_PLATFORM(pdp)))( QSP_ARG dp ) < 0 ){ WARN("do_new_gl_buffer: Error in platform-specific buffer registration!?"); // BUG? - should clean up here! } // Leave the buffer mapped by default //cutilSafeCall(cudaGLMapBufferObject( &OBJ_DATA_PTR(dp), OBJ_BUF_ID(dp) )); //advise("calling platform-specific buffer mapping function"); if( (*PF_MAPBUF_FN(PFDEV_PLATFORM(pdp)))( QSP_ARG dp ) < 0 ){ WARN("do_new_gl_buffer: Error in platform-specific buffer mapping!?"); // BUG? - should clean up here! } SET_OBJ_FLAG_BITS(dp, DT_BUF_MAPPED); // propagate change to children and parents propagate_flag(dp,DT_BUF_MAPPED); #else // ! HAVE_OPENGL NO_OGL_MSG #endif // ! HAVE_OPENGL } /* end do_new_gl_buffer */