gfx/angle/src/libGLESv2/renderer/Image.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/angle/src/libGLESv2/renderer/Image.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,548 @@
     1.4 +#include "precompiled.h"
     1.5 +//
     1.6 +// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
     1.7 +// Use of this source code is governed by a BSD-style license that can be
     1.8 +// found in the LICENSE file.
     1.9 +//
    1.10 +
    1.11 +// Image.h: Implements the rx::Image class, an abstract base class for the 
    1.12 +// renderer-specific classes which will define the interface to the underlying
    1.13 +// surfaces or resources.
    1.14 +
    1.15 +#include "libGLESv2/renderer/Image.h"
    1.16 +
    1.17 +namespace rx
    1.18 +{
    1.19 +
    1.20 +Image::Image()
    1.21 +{
    1.22 +    mWidth = 0; 
    1.23 +    mHeight = 0;
    1.24 +    mInternalFormat = GL_NONE;
    1.25 +    mActualFormat = GL_NONE;
    1.26 +}
    1.27 +
    1.28 +void Image::loadAlphaDataToBGRA(GLsizei width, GLsizei height,
    1.29 +                                int inputPitch, const void *input, size_t outputPitch, void *output)
    1.30 +{
    1.31 +    const unsigned char *source = NULL;
    1.32 +    unsigned char *dest = NULL;
    1.33 +    
    1.34 +    for (int y = 0; y < height; y++)
    1.35 +    {
    1.36 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
    1.37 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
    1.38 +        for (int x = 0; x < width; x++)
    1.39 +        {
    1.40 +            dest[4 * x + 0] = 0;
    1.41 +            dest[4 * x + 1] = 0;
    1.42 +            dest[4 * x + 2] = 0;
    1.43 +            dest[4 * x + 3] = source[x];
    1.44 +        }
    1.45 +    }
    1.46 +}
    1.47 +
    1.48 +void Image::loadAlphaDataToNative(GLsizei width, GLsizei height,
    1.49 +                                  int inputPitch, const void *input, size_t outputPitch, void *output)
    1.50 +{
    1.51 +    const unsigned char *source = NULL;
    1.52 +    unsigned char *dest = NULL;
    1.53 +
    1.54 +    for (int y = 0; y < height; y++)
    1.55 +    {
    1.56 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
    1.57 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
    1.58 +        memcpy(dest, source, width);
    1.59 +    }
    1.60 +}
    1.61 +
    1.62 +void Image::loadAlphaFloatDataToRGBA(GLsizei width, GLsizei height,
    1.63 +                                     int inputPitch, const void *input, size_t outputPitch, void *output)
    1.64 +{
    1.65 +    const float *source = NULL;
    1.66 +    float *dest = NULL;
    1.67 +
    1.68 +    for (int y = 0; y < height; y++)
    1.69 +    {
    1.70 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
    1.71 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
    1.72 +        for (int x = 0; x < width; x++)
    1.73 +        {
    1.74 +            dest[4 * x + 0] = 0;
    1.75 +            dest[4 * x + 1] = 0;
    1.76 +            dest[4 * x + 2] = 0;
    1.77 +            dest[4 * x + 3] = source[x];
    1.78 +        }
    1.79 +    }
    1.80 +}
    1.81 +
    1.82 +void Image::loadAlphaHalfFloatDataToRGBA(GLsizei width, GLsizei height,
    1.83 +                                         int inputPitch, const void *input, size_t outputPitch, void *output)
    1.84 +{
    1.85 +    const unsigned short *source = NULL;
    1.86 +    unsigned short *dest = NULL;
    1.87 +
    1.88 +    for (int y = 0; y < height; y++)
    1.89 +    {
    1.90 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
    1.91 +        dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
    1.92 +        for (int x = 0; x < width; x++)
    1.93 +        {
    1.94 +            dest[4 * x + 0] = 0;
    1.95 +            dest[4 * x + 1] = 0;
    1.96 +            dest[4 * x + 2] = 0;
    1.97 +            dest[4 * x + 3] = source[x];
    1.98 +        }
    1.99 +    }
   1.100 +}
   1.101 +
   1.102 +void Image::loadLuminanceDataToNativeOrBGRA(GLsizei width, GLsizei height,
   1.103 +                                            int inputPitch, const void *input, size_t outputPitch, void *output, bool native)
   1.104 +{
   1.105 +    const unsigned char *source = NULL;
   1.106 +    unsigned char *dest = NULL;
   1.107 +
   1.108 +    for (int y = 0; y < height; y++)
   1.109 +    {
   1.110 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.111 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.112 +
   1.113 +        if (!native)   // BGRA8 destination format
   1.114 +        {
   1.115 +            for (int x = 0; x < width; x++)
   1.116 +            {
   1.117 +                dest[4 * x + 0] = source[x];
   1.118 +                dest[4 * x + 1] = source[x];
   1.119 +                dest[4 * x + 2] = source[x];
   1.120 +                dest[4 * x + 3] = 0xFF;
   1.121 +            }
   1.122 +        }
   1.123 +        else   // L8 destination format
   1.124 +        {
   1.125 +            memcpy(dest, source, width);
   1.126 +        }
   1.127 +    }
   1.128 +}
   1.129 +
   1.130 +void Image::loadLuminanceFloatDataToRGBA(GLsizei width, GLsizei height,
   1.131 +                                         int inputPitch, const void *input, size_t outputPitch, void *output)
   1.132 +{
   1.133 +    const float *source = NULL;
   1.134 +    float *dest = NULL;
   1.135 +
   1.136 +    for (int y = 0; y < height; y++)
   1.137 +    {
   1.138 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.139 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.140 +        for (int x = 0; x < width; x++)
   1.141 +        {
   1.142 +            dest[4 * x + 0] = source[x];
   1.143 +            dest[4 * x + 1] = source[x];
   1.144 +            dest[4 * x + 2] = source[x];
   1.145 +            dest[4 * x + 3] = 1.0f;
   1.146 +        }
   1.147 +    }
   1.148 +}
   1.149 +
   1.150 +void Image::loadLuminanceFloatDataToRGB(GLsizei width, GLsizei height,
   1.151 +                                        int inputPitch, const void *input, size_t outputPitch, void *output)
   1.152 +{
   1.153 +    const float *source = NULL;
   1.154 +    float *dest = NULL;
   1.155 +
   1.156 +    for (int y = 0; y < height; y++)
   1.157 +    {
   1.158 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.159 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.160 +        for (int x = 0; x < width; x++)
   1.161 +        {
   1.162 +            dest[3 * x + 0] = source[x];
   1.163 +            dest[3 * x + 1] = source[x];
   1.164 +            dest[3 * x + 2] = source[x];
   1.165 +        }
   1.166 +    }
   1.167 +}
   1.168 +
   1.169 +void Image::loadLuminanceHalfFloatDataToRGBA(GLsizei width, GLsizei height,
   1.170 +                                             int inputPitch, const void *input, size_t outputPitch, void *output)
   1.171 +{
   1.172 +    const unsigned short *source = NULL;
   1.173 +    unsigned short *dest = NULL;
   1.174 +
   1.175 +    for (int y = 0; y < height; y++)
   1.176 +    {
   1.177 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.178 +        dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.179 +        for (int x = 0; x < width; x++)
   1.180 +        {
   1.181 +            dest[4 * x + 0] = source[x];
   1.182 +            dest[4 * x + 1] = source[x];
   1.183 +            dest[4 * x + 2] = source[x];
   1.184 +            dest[4 * x + 3] = 0x3C00; // SEEEEEMMMMMMMMMM, S = 0, E = 15, M = 0: 16bit flpt representation of 1
   1.185 +        }
   1.186 +    }
   1.187 +}
   1.188 +
   1.189 +void Image::loadLuminanceAlphaDataToNativeOrBGRA(GLsizei width, GLsizei height,
   1.190 +                                                 int inputPitch, const void *input, size_t outputPitch, void *output, bool native)
   1.191 +{
   1.192 +    const unsigned char *source = NULL;
   1.193 +    unsigned char *dest = NULL;
   1.194 +
   1.195 +    for (int y = 0; y < height; y++)
   1.196 +    {
   1.197 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.198 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.199 +        
   1.200 +        if (!native)   // BGRA8 destination format
   1.201 +        {
   1.202 +            for (int x = 0; x < width; x++)
   1.203 +            {
   1.204 +                dest[4 * x + 0] = source[2*x+0];
   1.205 +                dest[4 * x + 1] = source[2*x+0];
   1.206 +                dest[4 * x + 2] = source[2*x+0];
   1.207 +                dest[4 * x + 3] = source[2*x+1];
   1.208 +            }
   1.209 +        }
   1.210 +        else
   1.211 +        {
   1.212 +            memcpy(dest, source, width * 2);
   1.213 +        }
   1.214 +    }
   1.215 +}
   1.216 +
   1.217 +void Image::loadLuminanceAlphaFloatDataToRGBA(GLsizei width, GLsizei height,
   1.218 +                                              int inputPitch, const void *input, size_t outputPitch, void *output)
   1.219 +{
   1.220 +    const float *source = NULL;
   1.221 +    float *dest = NULL;
   1.222 +
   1.223 +    for (int y = 0; y < height; y++)
   1.224 +    {
   1.225 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.226 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.227 +        for (int x = 0; x < width; x++)
   1.228 +        {
   1.229 +            dest[4 * x + 0] = source[2*x+0];
   1.230 +            dest[4 * x + 1] = source[2*x+0];
   1.231 +            dest[4 * x + 2] = source[2*x+0];
   1.232 +            dest[4 * x + 3] = source[2*x+1];
   1.233 +        }
   1.234 +    }
   1.235 +}
   1.236 +
   1.237 +void Image::loadLuminanceAlphaHalfFloatDataToRGBA(GLsizei width, GLsizei height,
   1.238 +                                                  int inputPitch, const void *input, size_t outputPitch, void *output)
   1.239 +{
   1.240 +    const unsigned short *source = NULL;
   1.241 +    unsigned short *dest = NULL;
   1.242 +
   1.243 +    for (int y = 0; y < height; y++)
   1.244 +    {
   1.245 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.246 +        dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.247 +        for (int x = 0; x < width; x++)
   1.248 +        {
   1.249 +            dest[4 * x + 0] = source[2*x+0];
   1.250 +            dest[4 * x + 1] = source[2*x+0];
   1.251 +            dest[4 * x + 2] = source[2*x+0];
   1.252 +            dest[4 * x + 3] = source[2*x+1];
   1.253 +        }
   1.254 +    }
   1.255 +}
   1.256 +
   1.257 +void Image::loadRGBUByteDataToBGRX(GLsizei width, GLsizei height,
   1.258 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.259 +{
   1.260 +    const unsigned char *source = NULL;
   1.261 +    unsigned char *dest = NULL;
   1.262 +
   1.263 +    for (int y = 0; y < height; y++)
   1.264 +    {
   1.265 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.266 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.267 +        for (int x = 0; x < width; x++)
   1.268 +        {
   1.269 +            dest[4 * x + 0] = source[x * 3 + 2];
   1.270 +            dest[4 * x + 1] = source[x * 3 + 1];
   1.271 +            dest[4 * x + 2] = source[x * 3 + 0];
   1.272 +            dest[4 * x + 3] = 0xFF;
   1.273 +        }
   1.274 +    }
   1.275 +}
   1.276 +
   1.277 +void Image::loadRGBUByteDataToRGBA(GLsizei width, GLsizei height,
   1.278 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.279 +{
   1.280 +    const unsigned char *source = NULL;
   1.281 +    unsigned char *dest = NULL;
   1.282 +
   1.283 +    for (int y = 0; y < height; y++)
   1.284 +    {
   1.285 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.286 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.287 +        for (int x = 0; x < width; x++)
   1.288 +        {
   1.289 +            dest[4 * x + 0] = source[x * 3 + 0];
   1.290 +            dest[4 * x + 1] = source[x * 3 + 1];
   1.291 +            dest[4 * x + 2] = source[x * 3 + 2];
   1.292 +            dest[4 * x + 3] = 0xFF;
   1.293 +        }
   1.294 +    }
   1.295 +}
   1.296 +
   1.297 +void Image::loadRGB565DataToBGRA(GLsizei width, GLsizei height,
   1.298 +                                 int inputPitch, const void *input, size_t outputPitch, void *output)
   1.299 +{
   1.300 +    const unsigned short *source = NULL;
   1.301 +    unsigned char *dest = NULL;
   1.302 +
   1.303 +    for (int y = 0; y < height; y++)
   1.304 +    {
   1.305 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.306 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.307 +        for (int x = 0; x < width; x++)
   1.308 +        {
   1.309 +            unsigned short rgba = source[x];
   1.310 +            dest[4 * x + 0] = ((rgba & 0x001F) << 3) | ((rgba & 0x001F) >> 2);
   1.311 +            dest[4 * x + 1] = ((rgba & 0x07E0) >> 3) | ((rgba & 0x07E0) >> 9);
   1.312 +            dest[4 * x + 2] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
   1.313 +            dest[4 * x + 3] = 0xFF;
   1.314 +        }
   1.315 +    }
   1.316 +}
   1.317 +
   1.318 +void Image::loadRGB565DataToRGBA(GLsizei width, GLsizei height,
   1.319 +                                 int inputPitch, const void *input, size_t outputPitch, void *output)
   1.320 +{
   1.321 +    const unsigned short *source = NULL;
   1.322 +    unsigned char *dest = NULL;
   1.323 +
   1.324 +    for (int y = 0; y < height; y++)
   1.325 +    {
   1.326 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.327 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.328 +        for (int x = 0; x < width; x++)
   1.329 +        {
   1.330 +            unsigned short rgba = source[x];
   1.331 +            dest[4 * x + 0] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
   1.332 +            dest[4 * x + 1] = ((rgba & 0x07E0) >> 3) | ((rgba & 0x07E0) >> 9);
   1.333 +            dest[4 * x + 2] = ((rgba & 0x001F) << 3) | ((rgba & 0x001F) >> 2);
   1.334 +            dest[4 * x + 3] = 0xFF;
   1.335 +        }
   1.336 +    }
   1.337 +}
   1.338 +
   1.339 +void Image::loadRGBFloatDataToRGBA(GLsizei width, GLsizei height,
   1.340 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.341 +{
   1.342 +    const float *source = NULL;
   1.343 +    float *dest = NULL;
   1.344 +
   1.345 +    for (int y = 0; y < height; y++)
   1.346 +    {
   1.347 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.348 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.349 +        for (int x = 0; x < width; x++)
   1.350 +        {
   1.351 +            dest[4 * x + 0] = source[x * 3 + 0];
   1.352 +            dest[4 * x + 1] = source[x * 3 + 1];
   1.353 +            dest[4 * x + 2] = source[x * 3 + 2];
   1.354 +            dest[4 * x + 3] = 1.0f;
   1.355 +        }
   1.356 +    }
   1.357 +}
   1.358 +
   1.359 +void Image::loadRGBFloatDataToNative(GLsizei width, GLsizei height,
   1.360 +                                     int inputPitch, const void *input, size_t outputPitch, void *output)
   1.361 +{
   1.362 +    const float *source = NULL;
   1.363 +    float *dest = NULL;
   1.364 +
   1.365 +    for (int y = 0; y < height; y++)
   1.366 +    {
   1.367 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.368 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.369 +        memcpy(dest, source, width * 12);
   1.370 +    }
   1.371 +}
   1.372 +
   1.373 +void Image::loadRGBHalfFloatDataToRGBA(GLsizei width, GLsizei height,
   1.374 +                                       int inputPitch, const void *input, size_t outputPitch, void *output)
   1.375 +{
   1.376 +    const unsigned short *source = NULL;
   1.377 +    unsigned short *dest = NULL;
   1.378 +
   1.379 +    for (int y = 0; y < height; y++)
   1.380 +    {
   1.381 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.382 +        dest = reinterpret_cast<unsigned short*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.383 +        for (int x = 0; x < width; x++)
   1.384 +        {
   1.385 +            dest[4 * x + 0] = source[x * 3 + 0];
   1.386 +            dest[4 * x + 1] = source[x * 3 + 1];
   1.387 +            dest[4 * x + 2] = source[x * 3 + 2];
   1.388 +            dest[4 * x + 3] = 0x3C00; // SEEEEEMMMMMMMMMM, S = 0, E = 15, M = 0: 16bit flpt representation of 1
   1.389 +        }
   1.390 +    }
   1.391 +}
   1.392 +
   1.393 +void Image::loadRGBAUByteDataToBGRA(GLsizei width, GLsizei height,
   1.394 +                                    int inputPitch, const void *input, size_t outputPitch, void *output)
   1.395 +{
   1.396 +    const unsigned int *source = NULL;
   1.397 +    unsigned int *dest = NULL;
   1.398 +    for (int y = 0; y < height; y++)
   1.399 +    {
   1.400 +        source = reinterpret_cast<const unsigned int*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.401 +        dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.402 +
   1.403 +        for (int x = 0; x < width; x++)
   1.404 +        {
   1.405 +            unsigned int rgba = source[x];
   1.406 +            dest[x] = (_rotl(rgba, 16) & 0x00ff00ff) | (rgba & 0xff00ff00);
   1.407 +        }
   1.408 +    }
   1.409 +}
   1.410 +
   1.411 +void Image::loadRGBAUByteDataToNative(GLsizei width, GLsizei height,
   1.412 +                                      int inputPitch, const void *input, size_t outputPitch, void *output)
   1.413 +{
   1.414 +    const unsigned int *source = NULL;
   1.415 +    unsigned int *dest = NULL;
   1.416 +    for (int y = 0; y < height; y++)
   1.417 +    {
   1.418 +        source = reinterpret_cast<const unsigned int*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.419 +        dest = reinterpret_cast<unsigned int*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.420 +
   1.421 +        memcpy(dest, source, width * 4);
   1.422 +    }
   1.423 +}
   1.424 +
   1.425 +void Image::loadRGBA4444DataToBGRA(GLsizei width, GLsizei height,
   1.426 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.427 +{
   1.428 +    const unsigned short *source = NULL;
   1.429 +    unsigned char *dest = NULL;
   1.430 +
   1.431 +    for (int y = 0; y < height; y++)
   1.432 +    {
   1.433 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.434 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.435 +        for (int x = 0; x < width; x++)
   1.436 +        {
   1.437 +            unsigned short rgba = source[x];
   1.438 +            dest[4 * x + 0] = ((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4);
   1.439 +            dest[4 * x + 1] = ((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8);
   1.440 +            dest[4 * x + 2] = ((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12);
   1.441 +            dest[4 * x + 3] = ((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0);
   1.442 +        }
   1.443 +    }
   1.444 +}
   1.445 +
   1.446 +void Image::loadRGBA4444DataToRGBA(GLsizei width, GLsizei height,
   1.447 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.448 +{
   1.449 +    const unsigned short *source = NULL;
   1.450 +    unsigned char *dest = NULL;
   1.451 +
   1.452 +    for (int y = 0; y < height; y++)
   1.453 +    {
   1.454 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.455 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.456 +        for (int x = 0; x < width; x++)
   1.457 +        {
   1.458 +            unsigned short rgba = source[x];
   1.459 +            dest[4 * x + 0] = ((rgba & 0xF000) >> 8) | ((rgba & 0xF000) >> 12);
   1.460 +            dest[4 * x + 1] = ((rgba & 0x0F00) >> 4) | ((rgba & 0x0F00) >> 8);
   1.461 +            dest[4 * x + 2] = ((rgba & 0x00F0) << 0) | ((rgba & 0x00F0) >> 4);
   1.462 +            dest[4 * x + 3] = ((rgba & 0x000F) << 4) | ((rgba & 0x000F) >> 0);
   1.463 +        }
   1.464 +    }
   1.465 +}
   1.466 +
   1.467 +void Image::loadRGBA5551DataToBGRA(GLsizei width, GLsizei height,
   1.468 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.469 +{
   1.470 +    const unsigned short *source = NULL;
   1.471 +    unsigned char *dest = NULL;
   1.472 +
   1.473 +    for (int y = 0; y < height; y++)
   1.474 +    {
   1.475 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.476 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.477 +        for (int x = 0; x < width; x++)
   1.478 +        {
   1.479 +            unsigned short rgba = source[x];
   1.480 +            dest[4 * x + 0] = ((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3);
   1.481 +            dest[4 * x + 1] = ((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8);
   1.482 +            dest[4 * x + 2] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
   1.483 +            dest[4 * x + 3] = (rgba & 0x0001) ? 0xFF : 0;
   1.484 +        }
   1.485 +    }
   1.486 +}
   1.487 +
   1.488 +void Image::loadRGBA5551DataToRGBA(GLsizei width, GLsizei height,
   1.489 +                                   int inputPitch, const void *input, size_t outputPitch, void *output)
   1.490 +{
   1.491 +    const unsigned short *source = NULL;
   1.492 +    unsigned char *dest = NULL;
   1.493 +
   1.494 +    for (int y = 0; y < height; y++)
   1.495 +    {
   1.496 +        source = reinterpret_cast<const unsigned short*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.497 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.498 +        for (int x = 0; x < width; x++)
   1.499 +        {
   1.500 +            unsigned short rgba = source[x];
   1.501 +            dest[4 * x + 0] = ((rgba & 0xF800) >> 8) | ((rgba & 0xF800) >> 13);
   1.502 +            dest[4 * x + 1] = ((rgba & 0x07C0) >> 3) | ((rgba & 0x07C0) >> 8);
   1.503 +            dest[4 * x + 2] = ((rgba & 0x003E) << 2) | ((rgba & 0x003E) >> 3);
   1.504 +            dest[4 * x + 3] = (rgba & 0x0001) ? 0xFF : 0;
   1.505 +        }
   1.506 +    }
   1.507 +}
   1.508 +
   1.509 +void Image::loadRGBAFloatDataToRGBA(GLsizei width, GLsizei height,
   1.510 +                                    int inputPitch, const void *input, size_t outputPitch, void *output)
   1.511 +{
   1.512 +    const float *source = NULL;
   1.513 +    float *dest = NULL;
   1.514 +
   1.515 +    for (int y = 0; y < height; y++)
   1.516 +    {
   1.517 +        source = reinterpret_cast<const float*>(static_cast<const unsigned char*>(input) + y * inputPitch);
   1.518 +        dest = reinterpret_cast<float*>(static_cast<unsigned char*>(output) + y * outputPitch);
   1.519 +        memcpy(dest, source, width * 16);
   1.520 +    }
   1.521 +}
   1.522 +
   1.523 +void Image::loadRGBAHalfFloatDataToRGBA(GLsizei width, GLsizei height,
   1.524 +                                        int inputPitch, const void *input, size_t outputPitch, void *output)
   1.525 +{
   1.526 +    const unsigned char *source = NULL;
   1.527 +    unsigned char *dest = NULL;
   1.528 +
   1.529 +    for (int y = 0; y < height; y++)
   1.530 +    {
   1.531 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.532 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.533 +        memcpy(dest, source, width * 8);
   1.534 +    }
   1.535 +}
   1.536 +
   1.537 +void Image::loadBGRADataToBGRA(GLsizei width, GLsizei height,
   1.538 +                               int inputPitch, const void *input, size_t outputPitch, void *output)
   1.539 +{
   1.540 +    const unsigned char *source = NULL;
   1.541 +    unsigned char *dest = NULL;
   1.542 +
   1.543 +    for (int y = 0; y < height; y++)
   1.544 +    {
   1.545 +        source = static_cast<const unsigned char*>(input) + y * inputPitch;
   1.546 +        dest = static_cast<unsigned char*>(output) + y * outputPitch;
   1.547 +        memcpy(dest, source, width*4);
   1.548 +    }
   1.549 +}
   1.550 +
   1.551 +}

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