+#include <msp/gl/extensions/arb_texture_cube_map.h>
+#include <msp/io/memory.h>
+#include <msp/strings/format.h>
#include "bindable.h"
#include "error.h"
-#include "extension.h"
+#include "pixelstore.h"
#include "texturecube.h"
using namespace std;
TextureCube::TextureCube():
Texture(GL_TEXTURE_CUBE_MAP),
+ ifmt(RGB),
size(0),
allocated(0)
{
- static RequireVersion _ver(1, 3);
+ static Require _req(ARB_texture_cube_map);
}
void TextureCube::storage(PixelFormat fmt, unsigned sz)
throw invalid_operation("TextureCube::storage");
if(sz==0)
throw invalid_argument("TextureCube::storage");
+ require_pixelformat(fmt);
ifmt = fmt;
size = sz;
unsigned s = get_level_size(level);
if(s==0)
- throw invalid_argument("TextureCube::image");
+ throw out_of_range("TextureCube::image");
- Bind _bind(this, true);
+ BindRestore _bind(this);
glTexImage2D(face, level, ifmt, s, s, 0, fmt, type, data);
// XXX Allocation should be tracked per-face, but we'll run out of bits
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;
}
}
+void TextureCube::image(TextureCubeFace face, const Graphics::Image &img, bool srgb)
+{
+ unsigned w = img.get_width();
+ unsigned h = img.get_height();
+ PixelFormat fmt = pixelformat_from_graphics(img.get_format());
+ if(size==0)
+ {
+ 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);
+ }
+ else if(w!=size || h!=size)
+ throw incompatible_data("TextureCube::image");
+
+ PixelStore pstore = PixelStore::from_image(img);
+ BindRestore _bind_ps(pstore);
+
+ image(face, 0, fmt, UNSIGNED_BYTE, img.get_data());
+}
+
unsigned TextureCube::get_level_size(unsigned level)
{
return size>>level;
const Vector3 &fv = get_face_direction(face);
const Vector3 &sv = get_s_direction(face);
const Vector3 &tv = get_t_direction(face);
- return Vector3(fv.x+s*sv.x, fv.y+t*tv.y, fv.z+s*sv.z+t*tv.z);
+ 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)
+{
+ init();
+}
+
+TextureCube::Loader::Loader(TextureCube &t, Collection &c):
+ DataFile::DerivedObjectLoader<TextureCube, Texture::Loader>(t, c)
+{
+ init();
+}
+
+void TextureCube::Loader::init()
+{
+ add("image_data", &Loader::image_data);
+ add("raw_data", &Loader::raw_data);
+ add("storage", &Loader::storage);
+}
+
+void TextureCube::Loader::image_data(TextureCubeFace face, const string &data)
+{
+ Graphics::Image img;
+ IO::Memory mem(data.data(), data.size());
+ img.load_io(mem);
+
+ obj.image(face, img, srgb);
+}
+
+void TextureCube::Loader::raw_data(TextureCubeFace face, const string &data)
+{
+ obj.image(face, 0, get_base_pixelformat(obj.ifmt), UNSIGNED_BYTE, data.data());
+}
+
+void TextureCube::Loader::storage(PixelFormat fmt, unsigned s)
+{
+ if(srgb)
+ fmt = get_srgb_pixelformat(fmt);
+ obj.storage(fmt, s);
+}
+
+
+void operator>>(const LexicalConverter &conv, TextureCubeFace &face)
+{
+ const string &str = conv.get();
+ if(str=="POSITIVE_X")
+ face = POSITIVE_X;
+ else if(str=="NEGATIVE_X")
+ face = NEGATIVE_X;
+ else if(str=="POSITIVE_Y")
+ face = POSITIVE_Y;
+ else if(str=="NEGATIVE_Y")
+ face = NEGATIVE_Y;
+ else if(str=="POSITIVE_Z")
+ face = POSITIVE_Z;
+ else if(str=="NEGATIVE_Z")
+ face = NEGATIVE_Z;
+ else
+ throw lexical_error(format("conversion of '%s' to TextureCubeFace", str));
}
} // namespace GL