kc3-lang/angle/src/libGLESv2/renderer/Image.cpp

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• Hash : 26041c9a
  Author :
  Date : 2013-01-11T04:08:58
  

  Implements missing Image::loadData cases.
  
  TRAC #22347
  
  Author: Shannon Woods
  Signed-off-by: Geoff Lang
  Signed-off-by: Daniel Koch
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1675 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/renderer/Image.cpp

• //
  // Copyright (c) 2002-2012 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.
  //
  
  // Image.h: Implements the rx::Image class, an abstract base class for the 
  // renderer-specific classes which will define the interface to the underlying
  // surfaces or resources.
  
  #include <GLES2/gl2.h>
  #include <string.h>
  #include <stdlib.h>
  
  #include "libGLESv2/renderer/Image.h"
  
  namespace rx
  {
  
  Image::Image()
  {
      mWidth = 0; 
      mHeight = 0;
      mInternalFormat = GL_NONE;
      mActualFormat = GL_NONE;
  }
  
  void Image::loadAlphaDataToBGRA(GLsizei width, GLsizei height,
                                  int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
      
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = 0;
              dest[4 * x + 1] = 0;
              dest[4 * x + 2] = 0;
              dest[4 * x + 3] = source[x];
          }
      }
  }
  
  void Image::loadAlphaDataToNative(GLsizei width, GLsizei height,
                                    int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          memcpy(dest, source, width);
      }
  }
  
  void Image::loadAlphaFloatDataToRGBA(GLsizei width, GLsizei height,
                                       int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = 0;
              dest[4 * x + 1] = 0;
              dest[4 * x + 2] = 0;
              dest[4 * x + 3] = source[x];
          }
      }
  }
  
  void Image::loadAlphaHalfFloatDataToRGBA(GLsizei width, GLsizei height,
                                           int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned short *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = 0;
              dest[4 * x + 1] = 0;
              dest[4 * x + 2] = 0;
              dest[4 * x + 3] = source[x];
          }
      }
  }
  
  void Image::loadLuminanceDataToNativeOrBGRA(GLsizei width, GLsizei height,
                                              int inputPitch, const void *input, size_t outputPitch, void *output, bool native)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
  
          if (!native)   // BGRA8 destination format
          {
              for (int x = 0; x < width; x++)
              {
                  dest[4 * x + 0] = source[x];
                  dest[4 * x + 1] = source[x];
                  dest[4 * x + 2] = source[x];
                  dest[4 * x + 3] = 0xFF;
              }
          }
          else   // L8 destination format
          {
              memcpy(dest, source, width);
          }
      }
  }
  
  void Image::loadLuminanceFloatDataToRGBA(GLsizei width, GLsizei height,
                                           int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x];
              dest[4 * x + 1] = source[x];
              dest[4 * x + 2] = source[x];
              dest[4 * x + 3] = 1.0f;
          }
      }
  }
  
  void Image::loadLuminanceFloatDataToRGB(GLsizei width, GLsizei height,
                                          int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[3 * x + 0] = source[x];
              dest[3 * x + 1] = source[x];
              dest[3 * x + 2] = source[x];
          }
      }
  }
  
  void Image::loadLuminanceHalfFloatDataToRGBA(GLsizei width, GLsizei height,
                                               int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned short *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x];
              dest[4 * x + 1] = source[x];
              dest[4 * x + 2] = source[x];
              dest[4 * x + 3] = 0x3C00; // SEEEEEMMMMMMMMMM, S = 0, E = 15, M = 0: 16bit flpt representation of 1
          }
      }
  }
  
  void Image::loadLuminanceAlphaDataToNativeOrBGRA(GLsizei width, GLsizei height,
                                                   int inputPitch, const void *input, size_t outputPitch, void *output, bool native)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          
          if (!native)   // BGRA8 destination format
          {
              for (int x = 0; x < width; x++)
              {
                  dest[4 * x + 0] = source[2*x+0];
                  dest[4 * x + 1] = source[2*x+0];
                  dest[4 * x + 2] = source[2*x+0];
                  dest[4 * x + 3] = source[2*x+1];
              }
          }
          else
          {
              memcpy(dest, source, width * 2);
          }
      }
  }
  
  void Image::loadLuminanceAlphaFloatDataToRGBA(GLsizei width, GLsizei height,
                                                int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[2*x+0];
              dest[4 * x + 1] = source[2*x+0];
              dest[4 * x + 2] = source[2*x+0];
              dest[4 * x + 3] = source[2*x+1];
          }
      }
  }
  
  void Image::loadLuminanceAlphaHalfFloatDataToRGBA(GLsizei width, GLsizei height,
                                                    int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned short *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[2*x+0];
              dest[4 * x + 1] = source[2*x+0];
              dest[4 * x + 2] = source[2*x+0];
              dest[4 * x + 3] = source[2*x+1];
          }
      }
  }
  
  void Image::loadRGBUByteDataToBGRX(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x * 3 + 2];
              dest[4 * x + 1] = source[x * 3 + 1];
              dest[4 * x + 2] = source[x * 3 + 0];
              dest[4 * x + 3] = 0xFF;
          }
      }
  }
  
  void Image::loadRGBUByteDataToRGBA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x * 3 + 0];
              dest[4 * x + 1] = source[x * 3 + 1];
              dest[4 * x + 2] = source[x * 3 + 2];
              dest[4 * x + 3] = 0xFF;
          }
      }
  }
  
  void Image::loadRGB565DataToBGRA(GLsizei width, GLsizei height,
                                   int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0x001F) << 3) | ((rgba & 0x001F) >> 2);
              dest[4 * x + 1] = ((rgba & 0x07E0) >> 3) | ((rgba & 0x07E0) >> 9);
              dest[4 * x + 2] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
              dest[4 * x + 3] = 0xFF;
          }
      }
  }
  
  void Image::loadRGB565DataToRGBA(GLsizei width, GLsizei height,
                                   int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
              dest[4 * x + 1] = ((rgba & 0x07E0) >> 3) | ((rgba & 0x07E0) >> 9);
              dest[4 * x + 2] = ((rgba & 0x001F) << 3) | ((rgba & 0x001F) >> 2);
              dest[4 * x + 3] = 0xFF;
          }
      }
  }
  
  void Image::loadRGBFloatDataToRGBA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x * 3 + 0];
              dest[4 * x + 1] = source[x * 3 + 1];
              dest[4 * x + 2] = source[x * 3 + 2];
              dest[4 * x + 3] = 1.0f;
          }
      }
  }
  
  void Image::loadRGBFloatDataToNative(GLsizei width, GLsizei height,
                                       int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          memcpy(dest, source, width * 12);
      }
  }
  
  void Image::loadRGBHalfFloatDataToRGBA(GLsizei width, GLsizei height,
                                         int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned short *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
          for (int x = 0; x < width; x++)
          {
              dest[4 * x + 0] = source[x * 3 + 0];
              dest[4 * x + 1] = source[x * 3 + 1];
              dest[4 * x + 2] = source[x * 3 + 2];
              dest[4 * x + 3] = 0x3C00; // SEEEEEMMMMMMMMMM, S = 0, E = 15, M = 0: 16bit flpt representation of 1
          }
      }
  }
  
  void Image::loadRGBAUByteDataToBGRA(GLsizei width, GLsizei height,
                                      int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned int *source = NULL;
      unsigned int *dest = NULL;
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned int*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch);
  
          for (int x = 0; x < width; x++)
          {
              unsigned int rgba = source[x];
              dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
          }
      }
  }
  
  void Image::loadRGBAUByteDataToNative(GLsizei width, GLsizei height,
                                        int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned int *source = NULL;
      unsigned int *dest = NULL;
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned int*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch);
  
          memcpy(dest, source, width * 4);
      }
  }
  
  void Image::loadRGBA4444DataToBGRA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4);
              dest[4 * x + 1] = ((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8);
              dest[4 * x + 2] = ((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12);
              dest[4 * x + 3] = ((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0);
          }
      }
  }
  
  void Image::loadRGBA4444DataToRGBA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12);
              dest[4 * x + 1] = ((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8);
              dest[4 * x + 2] = ((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4);
              dest[4 * x + 3] = ((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0);
          }
      }
  }
  
  void Image::loadRGBA5551DataToBGRA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3);
              dest[4 * x + 1] = ((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8);
              dest[4 * x + 2] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
              dest[4 * x + 3] = (rgba & 0x0001) ? 0xFF : 0;
          }
      }
  }
  
  void Image::loadRGBA5551DataToRGBA(GLsizei width, GLsizei height,
                                     int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned short *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          for (int x = 0; x < width; x++)
          {
              unsigned short rgba = source[x];
              dest[4 * x + 0] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
              dest[4 * x + 1] = ((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8);
              dest[4 * x + 2] = ((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3);
              dest[4 * x + 3] = (rgba & 0x0001) ? 0xFF : 0;
          }
      }
  }
  
  void Image::loadRGBAFloatDataToRGBA(GLsizei width, GLsizei height,
                                      int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const float *source = NULL;
      float *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
          dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
          memcpy(dest, source, width * 16);
      }
  }
  
  void Image::loadRGBAHalfFloatDataToRGBA(GLsizei width, GLsizei height,
                                          int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          memcpy(dest, source, width * 8);
      }
  }
  
  void Image::loadBGRADataToBGRA(GLsizei width, GLsizei height,
                                 int inputPitch, const void *input, size_t outputPitch, void *output)
  {
      const unsigned char *source = NULL;
      unsigned char *dest = NULL;
  
      for (int y = 0; y < height; y++)
      {
          source = static_cast<const unsigned char*>(input) + y * inputPitch;
          dest = static_cast<unsigned char*>(output) + y * outputPitch;
          memcpy(dest, source, width*4);
      }
  }
  
  }
  

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