The objective of this library is to provide an easy way to prototype and implement image and video processing functions in CUDA and GLSL. The library provides wrapper code generators for both CUDA, GLSL and OpenCL.
License: Apache License 2.0
demo_tiff calls vglGdcmSaveFileUncompressed with nonexistent path and should print failure message when file save is unsuccessful.
Add this code to shaders with C-style array initializations.
#version 120
#extension GL_ARB_shading_language_420pack : enable
On line 62, of the refered code, there's the following code:
visiongl/src/CL_ND/vglClNdErode.cl
Line 62 in 165f8de
But pin does not exists. Maybe it should be pmin, making the line be:
pmin = min(pmin, img_input[conv_coord]);
The functions generate wrong results. The correct is a multiplication of widht, heigth, and length of image.
When running the first command with cmake:
cmake .
The cmake complains about two files missing:
src/glsl2cpp_DiffEq.cpp
src/glsl2cpp_DiffEq.h
There's a unused local variable called int* shape. Reference of that line below
Line 174 in 165f8de
A função "vglNdarray3To4Channels(img);" dá segmentation fault com imagens com 1 canal.
Got compiling error on the following line:
visiongl/src/CL/vglClInvert.cl
Line 12 in 165f8de
Error was fixed rewriting the code to:
p.xyz = 1.0f - p.xyz;
Here follows my OpenCL device:
Nvidia GeForce GTX 1060 6GB, from MSI, on Ubuntu 18.04.1 LTS
driver version: nvidia-driver-390 (but I had this issue since november 2017)
All my system is up-to-date in January 30, 2019.
Here follows my clinfo output:
Number of platforms 1
Platform Name NVIDIA CUDA
Platform Vendor NVIDIA Corporation
Platform Version OpenCL 1.2 CUDA 9.1.84
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer
Platform Extensions function suffix NV
Platform Name NVIDIA CUDA
Number of devices 1
Device Name GeForce GTX 1060 6GB
Device Vendor NVIDIA Corporation
Device Vendor ID 0x10de
Device Version OpenCL 1.2 CUDA
Driver Version 390.77
Device OpenCL C Version OpenCL C 1.2
Device Type GPU
Device Topology (NV) PCI-E, 07:00.0
Device Profile FULL_PROFILE
Device Available Yes
Compiler Available Yes
Linker Available Yes
Max compute units 10
Max clock frequency 1759MHz
Compute Capability (NV) 6.1
Device Partition (core)
Max number of sub-devices 1
Supported partition types None
Max work item dimensions 3
Max work item sizes 1024x1024x64
Max work group size 1024
Preferred work group size multiple 32
Warp size (NV) 32
Preferred / native vector sizes
char 1 / 1
short 1 / 1
int 1 / 1
long 1 / 1
half 0 / 0 (n/a)
float 1 / 1
double 1 / 1 (cl_khr_fp64)
Half-precision Floating-point support (n/a)
Single-precision Floating-point support (core)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations Yes
Double-precision Floating-point support (cl_khr_fp64)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Address bits 64, Little-Endian
Global memory size 6370295808 (5.933GiB)
Error Correction support No
Max memory allocation 1592573952 (1.483GiB)
Unified memory for Host and Device No
Integrated memory (NV) No
Minimum alignment for any data type 128 bytes
Alignment of base address 4096 bits (512 bytes)
Global Memory cache type Read/Write
Global Memory cache size 163840 (160KiB)
Global Memory cache line size 128 bytes
Image support Yes
Max number of samplers per kernel 32
Max size for 1D images from buffer 134217728 pixels
Max 1D or 2D image array size 2048 images
Max 2D image size 16384x32768 pixels
Max 3D image size 16384x16384x16384 pixels
Max number of read image args 256
Max number of write image args 16
Local memory type Local
Local memory size 49152 (48KiB)
Registers per block (NV) 65536
Max number of constant args 9
Max constant buffer size 65536 (64KiB)
Max size of kernel argument 4352 (4.25KiB)
Queue properties
Out-of-order execution Yes
Profiling Yes
Prefer user sync for interop No
Profiling timer resolution 1000ns
Execution capabilities
Run OpenCL kernels Yes
Run native kernels No
Kernel execution timeout (NV) Yes
Concurrent copy and kernel execution (NV) Yes
Number of async copy engines 2
printf() buffer size 1048576 (1024KiB)
Built-in kernels
Device Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer
NULL platform behavior
clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) NVIDIA CUDA
clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [NV]
clCreateContext(NULL, ...) [default] Success [NV]
clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) No platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) No platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) Invalid device type for platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) No platform
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.2.11
ICD loader Profile OpenCL 2.1
Comment "API" is ambiguous. Change to "C++".
Memory leak in vglImage.cpp:vglInit() line 209: argv is allocated and never released.
...
if (src->ndim != 3)
...
src->ndim != 2
copy image instead of doing output = buff
Você possui 3 funções de LoadTiff. Duas delas são parecidas com as minhas e é fácil de resolver, porém a 3ª você tem que dar uma olhada.
Para resolver das outras duas basta inserir o seguinte trecho após as linhas 391 e 445 do arquivo vglTiffIo.cpp:
free(buffer);
demo_tiff crashes with segmentation fault when input file received as parameter does not exist. Should text existence and exit gracefully.
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