Class: OpenCL::Image

Inherits:

Mem

• Object
• FFI::ManagedStruct
• Mem
• OpenCL::Image

Defined in:

lib/opencl_ruby_ffi/Image.rb,
lib/opencl_ruby_ffi/opencl_ruby_ffi_base_gen.rb

Overview

Maps the cl_mem OpenCL objects of type CL_MEM_OBJECT_IMAGE*

Constant Summary

FORMAT_MISMATCH =

:stopdoc:

-9

FORMAT_NOT_SUPPORTED =

-10

FORMAT =

0x1110

ELEMENT_SIZE =

0x1111

ROW_PITCH =

0x1112

SLICE_PITCH =

0x1113

WIDTH =

0x1114

HEIGHT =

0x1115

DEPTH =

0x1116

ARRAY_SIZE =

0x1117

BUFFER =

0x1118

NUM_MIP_LEVELS =

0x1119

NUM_SAMPLES =

0x111A

ROW_ALIGNMENT_QCOM =

0x40A2

SLICE_ALIGNMENT_QCOM =

0x40A3

Constants inherited from Mem

Mem::ALLOC_HOST_PTR, Mem::ASSOCIATED_MEMOBJECT, Mem::CONTEXT, Mem::COPY_HOST_PTR, Mem::FLAGS, Mem::HOST_NO_ACCESS, Mem::HOST_PTR, Mem::HOST_READ_ONLY, Mem::HOST_UNCACHED_QCOM, Mem::HOST_WRITEBACK_QCOM, Mem::HOST_WRITETHROUGH_QCOM, Mem::HOST_WRITE_COMBINING_QCOM, Mem::HOST_WRITE_ONLY, Mem::IMAGE1D, Mem::IMAGE1D_ARRAY, Mem::IMAGE1D_BUFFER, Mem::IMAGE2D, Mem::IMAGE2D_ARRAY, Mem::IMAGE3D, Mem::ION_HOST_PTR_QCOM, Mem::MAP_COUNT, Mem::OFFSET, Mem::PIPE, Mem::READ_ONLY, Mem::READ_WRITE, Mem::REFERENCE_COUNT, Mem::SIZE, Mem::SVM_ATOMICS, Mem::SVM_FINE_GRAIN_BUFFER, Mem::TYPE, Mem::USES_SVM_POINTER, Mem::USE_HOST_PTR, Mem::WRITE_ONLY

Instance Method Summary

• #buffer ⇒ Object

  Returns the associated Buffer if any, nil otherwise.

• #desc ⇒ Object

  Returns the ImageDesc corresponding to the Image.

• #format ⇒ Object

  Returns the ImageFormat corresponding to the image.

• #prop ⇒ Object

  :method: num_samples Returns the num_samples of the Image.

Methods inherited from Mem

#GL_mimap_level, #GL_object_name, #GL_object_type, #GL_texture_target, #associated_memobject, #context, #get_info, #initialize, #platform, release, #set_destructor_callback, #to_s

Constructor Details

This class inherits a constructor from OpenCL::Mem

Instance Method Details

#buffer ⇒ Object

Returns the associated Buffer if any, nil otherwise

# File 'lib/opencl_ruby_ffi/Image.rb', line 259

def buffer
  ptr = FFI::MemoryPointer::new( OpenCL::Buffer )
  error = OpenCL.clGetImageInfo(self,  OpenCL::Image::BUFFER, OpenCL::Buffer.size, ptr, nil)
  OpenCL.error_check(error)
  return nil if ptr.null?
  return OpenCL::Buffer::new(ptr.read_pointer)
end

#desc ⇒ Object

Returns the ImageDesc corresponding to the Image

# File 'lib/opencl_ruby_ffi/Image.rb', line 246

def desc
  return OpenCL::ImageDesc::new( self.type, self.width, self.height, self.depth, self.array_size, self.row_pitch, self.slice_pitch, self.num_mip_levels, self.num_samples, self.buffer )
end

#format ⇒ Object

Returns the ImageFormat corresponding to the image

# File 'lib/opencl_ruby_ffi/Image.rb', line 251

def format
  image_format = FFI::MemoryPointer::new( OpenCL::ImageFormat )
  error = OpenCL.clGetImageInfo( self, OpenCL::Image::FORMAT, image_format.size, image_format, nil)
  OpenCL.error_check(error)
  return OpenCL::ImageFormat::from_pointer( image_format )
end

#prop ⇒ Object

:method: num_samples Returns the num_samples of the Image

# File 'lib/opencl_ruby_ffi/Image.rb', line 230

%w( ELEMENT_SIZE ROW_PITCH SLICE_PITCH WIDTH HEIGHT DEPTH ARRAY_SIZE ).each { |prop|
  eval OpenCL.get_info("Image", :size_t, prop)
}