diff options
Diffstat (limited to 'core/image.cpp')
| -rw-r--r-- | core/image.cpp | 109 |
1 files changed, 101 insertions, 8 deletions
diff --git a/core/image.cpp b/core/image.cpp index 17ee569b6..c31fa4784 100644 --- a/core/image.cpp +++ b/core/image.cpp @@ -5,7 +5,7 @@ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ @@ -134,6 +134,18 @@ void Image::get_mipmap_offset_and_size(int p_mipmap,int &r_ofs, int &r_size) con } +void Image::get_mipmap_offset_size_and_dimensions(int p_mipmap,int &r_ofs, int &r_size,int &w, int& h) const { + + + int ofs; + _get_mipmap_offset_and_size(p_mipmap,ofs,w,h); + int ofs2,w2,h2; + _get_mipmap_offset_and_size(p_mipmap+1,ofs2,w2,h2); + r_ofs=ofs; + r_size=ofs2-ofs; + +} + void Image::put_pixel(int p_x,int p_y, const Color& p_color,int p_mipmap){ ERR_FAIL_INDEX(p_mipmap,mipmaps+1); @@ -1004,10 +1016,10 @@ void Image::create( const char ** p_xpm ) { String line_str=line_ptr; line_str.replace("\t"," "); - size_width=line_str.get_slice(" ",0).to_int(); - size_height=line_str.get_slice(" ",1).to_int(); - colormap_size=line_str.get_slice(" ",2).to_int(); - pixelchars=line_str.get_slice(" ",3).to_int(); + size_width=line_str.get_slicec(' ',0).to_int(); + size_height=line_str.get_slicec(' ',1).to_int(); + colormap_size=line_str.get_slicec(' ',2).to_int(); + pixelchars=line_str.get_slicec(' ',3).to_int(); ERR_FAIL_COND(colormap_size > 32766); ERR_FAIL_COND(pixelchars > 5); ERR_FAIL_COND(size_width > 32767); @@ -1112,6 +1124,7 @@ void Image::create( const char ** p_xpm ) { } #define DETECT_ALPHA_MAX_TRESHOLD 254 #define DETECT_ALPHA_MIN_TRESHOLD 2 + #define DETECT_ALPHA( m_value )\ { \ uint8_t value=m_value;\ @@ -1124,6 +1137,82 @@ void Image::create( const char ** p_xpm ) { }\ } +#define DETECT_NON_ALPHA( m_value )\ +{ \ + uint8_t value=m_value;\ + if (value>0) {\ + \ + detected=true;\ + break;\ + }\ +} + + +bool Image::is_invisible() const { + + if (format==FORMAT_GRAYSCALE || + format==FORMAT_RGB || + format==FORMAT_INDEXED) + return false; + + int len = data.size(); + + if (len==0) + return true; + + if (format >= FORMAT_YUV_422 && format <= FORMAT_YUV_444) + return false; + + int w,h; + _get_mipmap_offset_and_size(1,len,w,h); + + DVector<uint8_t>::Read r = data.read(); + const unsigned char *data_ptr=r.ptr(); + + bool detected=false; + + switch(format) { + case FORMAT_INTENSITY: { + + for(int i=0;i<len;i++) { + DETECT_NON_ALPHA(data_ptr[i]); + } + } break; + case FORMAT_GRAYSCALE_ALPHA: { + + + for(int i=0;i<(len>>1);i++) { + DETECT_NON_ALPHA(data_ptr[(i<<1)+1]); + } + + } break; + case FORMAT_RGBA: { + + for(int i=0;i<(len>>2);i++) { + DETECT_NON_ALPHA(data_ptr[(i<<2)+3]) + } + + } break; + case FORMAT_INDEXED: { + + return false; + } break; + case FORMAT_INDEXED_ALPHA: { + + return false; + } break; + case FORMAT_PVRTC2_ALPHA: + case FORMAT_PVRTC4_ALPHA: + case FORMAT_BC2: + case FORMAT_BC3: { + detected=true; + } break; + default: {} + } + + return !detected; +} + Image::AlphaMode Image::detect_alpha() const { if (format==FORMAT_GRAYSCALE || @@ -1734,6 +1823,10 @@ Error Image::_decompress_bc() { return OK; } +bool Image::is_compressed() const { + return format>=FORMAT_BC1; +} + Image Image::decompressed() const { @@ -1986,7 +2079,7 @@ void Image::blit_rect(const Image& p_src, const Rect2& p_src_rect,const Point2& } -Image (*Image::_png_mem_loader_func)(const uint8_t*)=NULL; +Image (*Image::_png_mem_loader_func)(const uint8_t*,int)=NULL; void (*Image::_image_compress_bc_func)(Image *)=NULL; void (*Image::_image_compress_pvrtc2_func)(Image *)=NULL; void (*Image::_image_compress_pvrtc4_func)(Image *)=NULL; @@ -2155,7 +2248,7 @@ void Image::fix_alpha_edges() { } -Image::Image(const uint8_t* p_png) { +Image::Image(const uint8_t* p_png,int p_len) { width=0; height=0; @@ -2163,7 +2256,7 @@ Image::Image(const uint8_t* p_png) { format=FORMAT_GRAYSCALE; if (_png_mem_loader_func) { - *this = _png_mem_loader_func(p_png); + *this = _png_mem_loader_func(p_png,p_len); } } |