Class: Engine::Metal::ComputeTexture

Inherits:
Object
  • Object
show all
Includes:
Fiddle
Defined in:
lib/engine/metal/compute_texture.rb

Constant Summary collapse

IOSURFACE_WIDTH =

IOSurface property keys

'IOSurfaceWidth'
IOSURFACE_HEIGHT = 
'IOSurfaceHeight'
IOSURFACE_BYTES_PER_ELEMENT = 
'IOSurfaceBytesPerElement'
IOSURFACE_BYTES_PER_ROW = 
'IOSurfaceBytesPerRow'
IOSURFACE_ALLOC_SIZE = 
'IOSurfaceAllocSize'
IOSURFACE_PIXEL_FORMAT = 
'IOSurfacePixelFormat'
PIXEL_FORMAT_RGBA32F =

Pixel format for RGBA32F

0x52474241

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(width, height) ⇒ ComputeTexture

‘RGBA’ as 32-bit int



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# File 'lib/engine/metal/compute_texture.rb', line 24

def initialize(width, height)
  @width = width
  @height = height
  @device = Device.instance

  create_iosurface
  create_metal_texture
  create_gl_rect_texture
  create_gl_2d_texture
  setup_blit_fbo
end

Instance Attribute Details

#gl_texture ⇒ Object (readonly)

Returns the value of attribute gl_texture.



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# File 'lib/engine/metal/compute_texture.rb', line 11

def gl_texture
  @gl_texture
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/engine/metal/compute_texture.rb', line 11

def height
  @height
end

#metal_texture ⇒ Object (readonly)

Returns the value of attribute metal_texture.



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# File 'lib/engine/metal/compute_texture.rb', line 11

def metal_texture
  @metal_texture
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/engine/metal/compute_texture.rb', line 11

def width
  @width
end

Instance Method Details

#sync ⇒ Object 



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# File 'lib/engine/metal/compute_texture.rb', line 36

def sync
  Engine::GL.BindFramebuffer(Engine::GL::READ_FRAMEBUFFER, @read_fbo)
  Engine::GL.BindFramebuffer(Engine::GL::DRAW_FRAMEBUFFER, @draw_fbo)

  Engine::GL.BlitFramebuffer(
    0, 0, @width, @height,
    0, 0, @width, @height,
    Engine::GL::COLOR_BUFFER_BIT,
    Engine::GL::NEAREST
  )

  Engine::GL.BindFramebuffer(Engine::GL::FRAMEBUFFER, 0)
  Engine::GL.Finish
end