fabs/rotate-me-fast
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Use PIXEL_SIZE to move to next pixel in I/O.

Browse source
This commit is contained in:
Fabien Freling 2014-07-16 20:52:52 +02:00
parent afd89f5238
commit 5f78958584
1 changed files with 20 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
rotation.cpp
View file

@ -195,10 +195,11 @@ struct Image {
pvalue_t* pixel = buffer; pvalue_t* pixel = buffer;
for (unsigned int i = 0; i < nb_pixels; ++i) for (unsigned int i = 0; i < nb_pixels; ++i)
{ {
*(pixel++) = istr.get(); pixel[0] = istr.get();
*(pixel++) = istr.get(); pixel[1] = istr.get();
*(pixel++) = istr.get(); pixel[2] = istr.get();
*(pixel++) = 0; // padding
pixel += PIXEL_SIZE;
} }
return true; return true;
@ -210,10 +211,11 @@ struct Image {
pvalue_t* pixel = buffer; pvalue_t* pixel = buffer;
for (unsigned int i = 0; i < nb_pixels; ++i) for (unsigned int i = 0; i < nb_pixels; ++i)
{ {
ostr << (char) *(pixel++); ostr << (char) pixel[0];
ostr << (char) *(pixel++); ostr << (char) pixel[1];
ostr << (char) *(pixel++); ostr << (char) pixel[2];
pixel++; // padding
pixel += PIXEL_SIZE;
} }
return true; return true;
@ -402,10 +404,11 @@ struct TiledImage : public Image {
for (unsigned int i = 0; i < width; ++i) for (unsigned int i = 0; i < width; ++i)
{ {
pvalue_t* tile = this->access_pixel(i, j); pvalue_t* tile = this->access_pixel(i, j);
*(tile++) = istr.get(); tile[0] = istr.get();
*(tile++) = istr.get(); tile[1] = istr.get();
*(tile++) = istr.get(); tile[2] = istr.get();
*(tile++) = 0; // padding
tile += PIXEL_SIZE;
} }
this->fill_overlap(); this->fill_overlap();
@ -419,10 +422,11 @@ struct TiledImage : public Image {
for (unsigned int i = 0; i < width; ++i) for (unsigned int i = 0; i < width; ++i)
{ {
pvalue_t const* tile = this->access_pixel(i, j); pvalue_t const* tile = this->access_pixel(i, j);
ostr << (char) *(tile++); ostr << (char) tile[0];
ostr << (char) *(tile++); ostr << (char) tile[1];
ostr << (char) *(tile++); ostr << (char) tile[2];
tile++; // padding
tile += PIXEL_SIZE;
} }
return true; return true;