kc3-lang/angle/src/libGLESv2/renderer/shaders/Blit.vs

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• Hash : 8dc8e277
  Author :
  Date : 2013-01-11T04:10:45
  

  Moved the shaders from libGLESv2 to the libGLESv2/renderer.
  
  TRAC #22230
  
  Signed-off-by: Shannon Woods
  Signed-off-by: Daniel Koch
  Author: Geoff Lang
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1692 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/renderer/shaders/Blit.vs

• //
  // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  struct VS_OUTPUT
  {
      float4 position : POSITION;
      float4 texcoord : TEXCOORD0;
  };
  
  uniform float4 halfPixelSize : c0;
  
  // Standard Vertex Shader
  // Input 0 is the homogenous position.
  // Outputs the homogenous position as-is.
  // Outputs a tex coord with (0,0) in the upper-left corner of the screen and (1,1) in the bottom right.
  // C0.X must be negative half-pixel width, C0.Y must be half-pixel height. C0.ZW must be 0.
  VS_OUTPUT standardvs(in float4 position : POSITION)
  {
      VS_OUTPUT Out;
  
      Out.position = position + halfPixelSize;
      Out.texcoord = position * float4(0.5, -0.5, 1.0, 1.0) + float4(0.5, 0.5, 0, 0);
  
      return Out;
  };
  
  // Flip Y Vertex Shader
  // Input 0 is the homogenous position.
  // Outputs the homogenous position as-is.
  // Outputs a tex coord with (0,1) in the upper-left corner of the screen and (1,0) in the bottom right.
  // C0.XY must be the half-pixel width and height. C0.ZW must be 0.
  VS_OUTPUT flipyvs(in float4 position : POSITION)
  {
      VS_OUTPUT Out;
  
      Out.position = position + halfPixelSize;
      Out.texcoord = position * float4(0.5, 0.5, 1.0, 1.0) + float4(0.5, 0.5, 0, 0);
  
      return Out;
  };
  

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