Implement loading functionality for texture classes that were missing it

[libs/gl.git] / source / texturecube.cpp

diff --git a/source/texturecube.cpp b/source/texturecube.cpp
index b071e8545df50ce665b1476b0683058a00af0590..743eb986247eb95318c98490179b3fdb95683980 100644 (file)
--- a/source/texturecube.cpp
+++ b/source/texturecube.cpp
@@ -23,6 +23,7 @@ Vector3 TextureCube::directions[6] =
 
 TextureCube::TextureCube():
        Texture(GL_TEXTURE_CUBE_MAP),
+       ifmt(RGB),
        size(0),
        allocated(0)
 {
@@ -46,8 +47,10 @@ void TextureCube::allocate(unsigned level)
        if(allocated&(1<<level))
                return;
 
+       PixelFormat base_fmt = get_base_pixelformat(ifmt);
+       DataType type = get_alloc_type(base_fmt);
        for(unsigned i=0; i<6; ++i)
-               image(enumerate_faces(i), level, get_base_pixelformat(ifmt), UNSIGNED_BYTE, 0);
+               image(enumerate_faces(i), level, base_fmt, type, 0);
 }
 
 void TextureCube::image(TextureCubeFace face, unsigned level, PixelFormat fmt, DataType type, const void *data)
@@ -66,6 +69,8 @@ void TextureCube::image(TextureCubeFace face, unsigned level, PixelFormat fmt, D
        allocated |= 1<<level;
        if(gen_mipmap && level==0)
        {
+               // TODO Only do this once all faces are created
+               auto_generate_mipmap();
                for(; s; s>>=1, ++level) ;
                allocated |= (1<<level)-1;
        }
@@ -81,10 +86,7 @@ void TextureCube::image(TextureCubeFace face, const Graphics::Image &img, bool s
                if(w!=h)
                        throw incompatible_data("TextureCube::image");
 
-               PixelFormat f = storage_pixelformat_from_graphics(img.get_format());
-               if(srgb)
-                       f = get_srgb_pixelformat(f);
-               storage(f, w);
+               storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w);
        }
        else if(w!=size || h!=size)
                throw incompatible_data("TextureCube::image");
@@ -95,6 +97,30 @@ void TextureCube::image(TextureCubeFace face, const Graphics::Image &img, bool s
        image(face, 0, fmt, UNSIGNED_BYTE, img.get_data());
 }
 
+void TextureCube::image(const Graphics::Image &img, bool srgb)
+{
+       unsigned w = img.get_width();
+       unsigned h = img.get_height();
+
+       if(h!=w*6)
+               throw incompatible_data("TextureCube::image");
+       h /= 6;
+
+       PixelFormat fmt = pixelformat_from_graphics(img.get_format());
+       if(size==0)
+               storage(storage_pixelformat_from_graphics(img.get_format(), srgb), w);
+       else if(w!=size || h!=size)
+               throw incompatible_data("TextureCube::image");
+
+       PixelStore pstore = PixelStore::from_image(img);
+       BindRestore _bind_ps(pstore);
+
+       const char *cdata = reinterpret_cast<const char *>(img.get_data());
+       unsigned face_size = img.get_stride()*size;
+       for(unsigned i=0; i<6; ++i)
+               image(enumerate_faces(i), 0, fmt, UNSIGNED_BYTE, cdata+i*face_size);
+}
+
 unsigned TextureCube::get_level_size(unsigned level)
 {
        return size>>level;
@@ -166,6 +192,11 @@ Vector3 TextureCube::get_texel_direction(TextureCubeFace face, unsigned u, unsig
        return fv+s*sv+t*tv;
 }
 
+UInt64 TextureCube::get_data_size() const
+{
+       return id ? size*size*6*get_pixel_size(ifmt) : 0;
+}
+
 
 TextureCube::Loader::Loader(TextureCube &t):
        DataFile::DerivedObjectLoader<TextureCube, Texture::Loader>(t)