diff options
| -rw-r--r-- | indra/llimage/llimage.cpp | 93 |
1 files changed, 42 insertions, 51 deletions
diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp index 91fa8c6ad1..02f1b223c2 100644 --- a/indra/llimage/llimage.cpp +++ b/indra/llimage/llimage.cpp @@ -1401,7 +1401,12 @@ void LLImageRaw::copyScaled( LLImageRaw* src ) bool LLImageRaw::scale( S32 new_width, S32 new_height, bool scale_image_data ) { - llassert((1 == getComponents()) || (3 == getComponents()) || (4 == getComponents()) ); + S32 components = getComponents(); + if (! ((1 == components) || (3 == components) || (4 == components) ) + { + LL_WARNS() << "Invalid getComponents value (" << components << ")" << LL_ENDL; + return false; + } S32 old_width = getWidth(); S32 old_height = getHeight(); @@ -1415,67 +1420,53 @@ bool LLImageRaw::scale( S32 new_width, S32 new_height, bool scale_image_data ) if (scale_image_data) { - /* - S32 temp_data_size = old_width * new_height * getComponents(); - llassert_always(temp_data_size > 0); - std::vector<U8> temp_buffer(temp_data_size); - - // Vertical - for( S32 col = 0; col < old_width; col++ ) - { - copyLineScaled( getData() + (getComponents() * col), &temp_buffer[0] + (getComponents() * col), old_height, new_height, old_width, old_width ); - } - - deleteData(); + S32 new_data_size = new_width * new_height * components; - U8* new_buffer = allocateDataSize(new_width, new_height, getComponents()); + if (new_data_size > 0) + { + U8 *new_data = (U8*)ALLOCATE_MEM(LLImageBase::getPrivatePool(), new_data_size); + if(NULL == new_data) + { + return false; + } - // Horizontal - for( S32 row = 0; row < new_height; row++ ) - { - copyLineScaled( &temp_buffer[0] + (getComponents() * old_width * row), new_buffer + (getComponents() * new_width * row), old_width, new_width, 1, 1 ); - } - */ - - S32 new_data_size = new_width * new_height * getComponents(); - llassert_always(new_data_size > 0); - - U8 *new_data = (U8*)ALLOCATE_MEM(LLImageBase::getPrivatePool(), new_data_size); - if(NULL == new_data) - { - return false; + bilinear_scale(getData(), old_width, old_height, components, old_width*components, new_data, new_width, new_height, components, new_width*components); + setDataAndSize(new_data, new_width, new_height, components); } - - bilinear_scale(getData(), old_width, old_height, getComponents(), old_width*getComponents(), new_data, new_width, new_height, getComponents(), new_width*getComponents()); - setDataAndSize(new_data, new_width, new_height, getComponents()); } else { // copy out existing image data - S32 temp_data_size = old_width * old_height * getComponents(); + S32 temp_data_size = old_width * old_height * components; std::vector<U8> temp_buffer(temp_data_size); memcpy(&temp_buffer[0], getData(), temp_data_size); // allocate new image data, will delete old data - U8* new_buffer = allocateDataSize(new_width, new_height, getComponents()); - - for( S32 row = 0; row < new_height; row++ ) - { - if (row < old_height) - { - memcpy(new_buffer + (new_width * row * getComponents()), &temp_buffer[0] + (old_width * row * getComponents()), getComponents() * llmin(old_width, new_width)); - if (old_width < new_width) - { - // pad out rest of row with black - memset(new_buffer + (getComponents() * ((new_width * row) + old_width)), 0, getComponents() * (new_width - old_width)); - } - } - else - { - // pad remaining rows with black - memset(new_buffer + (new_width * row * getComponents()), 0, new_width * getComponents()); - } - } + U8* new_buffer = allocateDataSize(new_width, new_height, components); + + if (!new_buffer) + { + LL_WARNS() << "Failed to allocate new image data buffer" << LL_ENDL; + return false; + } + + for( S32 row = 0; row < new_height; row++ ) + { + if (row < old_height) + { + memcpy(new_buffer + (new_width * row * components), &temp_buffer[0] + (old_width * row * components), components * llmin(old_width, new_width)); + if (old_width < new_width) + { + // pad out rest of row with black + memset(new_buffer + (components * ((new_width * row) + old_width)), 0, components * (new_width - old_width)); + } + } + else + { + // pad remaining rows with black + memset(new_buffer + (new_width * row * components), 0, new_width * components); + } + } } return true ; |