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This commit is contained in:
David Rose 2000-11-28 18:29:47 +00:00
parent 1161abd795
commit 0287c81e94
9 changed files with 219 additions and 43 deletions
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51
panda/src/egg/eggTexture.I
View File

@ -192,6 +192,57 @@ get_magfiltercolor() const {
return _magfiltercolor;
}
////////////////////////////////////////////////////////////////////
// Function: EggTexture::set_anisotropic_degree
// Access: Public
// Description: Sets the degree of anisotropic filtering for this
// texture. 1 is off; higher levels indicate filtering
// in effect.
////////////////////////////////////////////////////////////////////
INLINE void EggTexture::
set_anisotropic_degree(int anisotropic_degree) {
_anisotropic_degree = anisotropic_degree;
_flags |= F_has_anisotropic_degree;
}
////////////////////////////////////////////////////////////////////
// Function: EggTexture::clear_anisotropic_degree
// Access: Public
// Description: Removes the specification of anisotropic filtering
// from the texture.
////////////////////////////////////////////////////////////////////
INLINE void EggTexture::
clear_anisotropic_degree() {
_anisotropic_degree = 0;
_flags &= ~F_has_anisotropic_degree;
}
////////////////////////////////////////////////////////////////////
// Function: EggTexture::has_anisotropic_degree
// Access: Public
// Description: Returns true if a value for the anisotropic filtering
// degree has been specified for this texture, false
// otherwise.
////////////////////////////////////////////////////////////////////
INLINE bool EggTexture::
has_anisotropic_degree() const {
return (_flags & F_has_anisotropic_degree) != 0;
}
////////////////////////////////////////////////////////////////////
// Function: EggTexture::get_anisotropic_degree
// Access: Public
// Description: Returns the anisotropic filtering degree that has
// been specified for this texture. It is an error to
// call this unless has_anisotropic_degree() returns
// true.
////////////////////////////////////////////////////////////////////
INLINE int EggTexture::
get_anisotropic_degree() const {
nassertr(has_anisotropic_degree(), 1);
return _anisotropic_degree;
}
////////////////////////////////////////////////////////////////////
// Function: EggTexture::set_env_type
// Access: Public

63
panda/src/egg/eggTexture.cxx
View File

@ -29,6 +29,7 @@ EggTexture(const string &tref_name, const string &filename)
_magfilter = FT_unspecified;
_magfilteralpha = FT_unspecified;
_magfiltercolor = FT_unspecified;
_anisotropic_degree = 0;
_env_type = ET_unspecified;
_flags = 0;
_transform = LMatrix3d::ident_mat();
@ -62,6 +63,7 @@ operator = (const EggTexture &copy) {
_magfilter = copy._magfilter;
_magfilteralpha = copy._magfilteralpha;
_magfiltercolor = copy._magfiltercolor;
_anisotropic_degree = copy._anisotropic_degree;
_env_type = copy._env_type;
_flags = copy._flags;
_transform = copy._transform;
@ -120,6 +122,11 @@ write(ostream &out, int indent_level) const {
<< "<Scalar> magfiltercolor { " << get_magfiltercolor() << " }\n";
}
if (has_anisotropic_degree()) {
indent(out, indent_level + 2)
<< "<Scalar> anisotropic-degree { " << get_anisotropic_degree() << " }\n";
}
if (get_env_type() != ET_unspecified) {
indent(out, indent_level + 2)
<< "<Scalar> envtype { " << get_env_type() << " }\n";
@ -426,22 +433,38 @@ string_wrap_mode(const string &string) {
////////////////////////////////////////////////////////////////////
EggTexture::FilterType EggTexture::
string_filter_type(const string &string) {
// Old egg filter types.
if (cmp_nocase_uh(string, "point") == 0) {
return FT_point;
return FT_nearest;
} else if (cmp_nocase_uh(string, "linear") == 0) {
return FT_linear;
} else if (cmp_nocase_uh(string, "bilinear") == 0) {
return FT_bilinear;
return FT_linear;
} else if (cmp_nocase_uh(string, "trilinear") == 0) {
return FT_trilinear;
return FT_linear;
} else if (cmp_nocase_uh(string, "mipmap_point") == 0) {
return FT_mipmap_point;
return FT_nearest_mipmap_nearest;
} else if (cmp_nocase_uh(string, "mipmap_linear") == 0) {
return FT_mipmap_linear;
return FT_nearest_mipmap_linear;
} else if (cmp_nocase_uh(string, "mipmap_bilinear") == 0) {
return FT_mipmap_bilinear;
return FT_linear_mipmap_nearest;
} else if (cmp_nocase_uh(string, "mipmap_trilinear") == 0) {
return FT_mipmap_trilinear;
return FT_linear_mipmap_linear;
// Current egg filter types, that match those in Texture.
} else if (cmp_nocase_uh(string, "nearest") == 0) {
return FT_nearest;
} else if (cmp_nocase_uh(string, "linear") == 0) {
return FT_linear;
} else if (cmp_nocase_uh(string, "nearest_mipmap_nearest") == 0) {
return FT_nearest_mipmap_nearest;
} else if (cmp_nocase_uh(string, "linear_mipmap_nearest") == 0) {
return FT_linear_mipmap_nearest;
} else if (cmp_nocase_uh(string, "nearest_mipmap_linear") == 0) {
return FT_nearest_mipmap_linear;
} else if (cmp_nocase_uh(string, "linear_mipmap_linear") == 0) {
return FT_linear_mipmap_linear;
} else {
return FT_unspecified;
}
@ -541,22 +564,20 @@ ostream &operator << (ostream &out, EggTexture::FilterType type) {
switch (type) {
case EggTexture::FT_unspecified:
return out << "unspecified";
case EggTexture::FT_point:
return out << "point";
case EggTexture::FT_nearest:
return out << "nearest";
case EggTexture::FT_linear:
return out << "linear";
case EggTexture::FT_bilinear:
return out << "bilinear";
case EggTexture::FT_trilinear:
return out << "trilinear";
case EggTexture::FT_mipmap_point:
return out << "mipmap_point";
case EggTexture::FT_mipmap_linear:
return out << "mipmap_linear";
case EggTexture::FT_mipmap_bilinear:
return out << "mipmap_bilinear";
case EggTexture::FT_mipmap_trilinear:
return out << "mipmap_trilinear";
case EggTexture::FT_nearest_mipmap_nearest:
return out << "nearest_mipmap_nearest";
case EggTexture::FT_linear_mipmap_nearest:
return out << "linear_mipmap_nearest";
case EggTexture::FT_nearest_mipmap_linear:
return out << "nearest_mipmap_linear";
case EggTexture::FT_linear_mipmap_linear:
return out << "linear_mipmap_linear";
}
nassertr(false, out);

29
panda/src/egg/eggTexture.h
View File

@ -53,9 +53,21 @@ public:
WM_unspecified, WM_repeat, WM_clamp
};
enum FilterType {
FT_unspecified, FT_point, FT_linear, FT_bilinear, FT_trilinear,
FT_mipmap_point, FT_mipmap_linear, FT_mipmap_bilinear,
FT_mipmap_trilinear
// Note that these type values match up, name-for-name, with a
// similar enumerated type in Panda's Texture object. However,
// they do *not* match up numerically. You must convert between
// them using a switch statement.
FT_unspecified,
// Mag Filter and Min Filter
FT_nearest,
FT_linear,
// Min Filter Only
FT_nearest_mipmap_nearest,
FT_linear_mipmap_nearest,
FT_nearest_mipmap_linear,
FT_linear_mipmap_linear,
};
enum EnvType {
ET_unspecified, ET_modulate, ET_decal
@ -87,6 +99,11 @@ public:
INLINE void set_magfiltercolor(FilterType type);
INLINE FilterType get_magfiltercolor() const;
INLINE void set_anisotropic_degree(int anisotropic_degree);
INLINE void clear_anisotropic_degree();
INLINE bool has_anisotropic_degree() const;
INLINE int get_anisotropic_degree() const;
INLINE void set_env_type(EnvType type);
INLINE EnvType get_env_type() const;
@ -109,13 +126,15 @@ public:
private:
enum Flags {
F_has_transform = 0x0001,
F_has_alpha_file = 0x0002
F_has_transform = 0x0001,
F_has_alpha_file = 0x0002,
F_has_anisotropic_degree = 0x0004,
};
Format _format;
WrapMode _wrap_mode, _wrap_u, _wrap_v;
FilterType _minfilter, _magfilter, _magfilteralpha, _magfiltercolor;
int _anisotropic_degree;
EnvType _env_type;
int _flags;
LMatrix3d _transform;

3
panda/src/egg/parser.yxx
View File

@ -364,6 +364,9 @@ texture_body:
texture->set_magfiltercolor(f);
}
} else if (cmp_nocase_uh(name, "anisotropic_degree") == 0) {
texture->set_anisotropic_degree(value);
} else if (cmp_nocase_uh(name, "envtype") == 0) {
EggTexture::EnvType e = EggTexture::string_env_type(strval);
if (e == EggTexture::ET_unspecified) {

54
panda/src/egg2sg/eggLoader.cxx
View File

@ -596,13 +596,11 @@ apply_texture_attributes(Texture *tex, const EggTexture *egg_tex) {
}
switch (egg_tex->get_minfilter()) {
case EggTexture::FT_point:
case EggTexture::FT_nearest:
tex->set_minfilter(Texture::FT_nearest);
break;
case EggTexture::FT_linear:
case EggTexture::FT_bilinear:
case EggTexture::FT_trilinear:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring minfilter request\n";
@ -612,7 +610,7 @@ apply_texture_attributes(Texture *tex, const EggTexture *egg_tex) {
}
break;
case EggTexture::FT_mipmap_point:
case EggTexture::FT_nearest_mipmap_nearest:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring minfilter request\n";
@ -626,9 +624,35 @@ apply_texture_attributes(Texture *tex, const EggTexture *egg_tex) {
}
break;
case EggTexture::FT_mipmap_linear:
case EggTexture::FT_mipmap_bilinear:
case EggTexture::FT_mipmap_trilinear:
case EggTexture::FT_linear_mipmap_nearest:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring minfilter request\n";
tex->set_minfilter(Texture::FT_nearest);
} else if (egg_ignore_mipmaps) {
egg2sg_cat.warning()
<< "Ignoring mipmap request\n";
tex->set_minfilter(Texture::FT_linear);
} else {
tex->set_minfilter(Texture::FT_linear_mipmap_nearest);
}
break;
case EggTexture::FT_nearest_mipmap_linear:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring minfilter request\n";
tex->set_minfilter(Texture::FT_nearest);
} else if (egg_ignore_mipmaps) {
egg2sg_cat.warning()
<< "Ignoring mipmap request\n";
tex->set_minfilter(Texture::FT_nearest);
} else {
tex->set_minfilter(Texture::FT_nearest_mipmap_linear);
}
break;
case EggTexture::FT_linear_mipmap_linear:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring minfilter request\n";
@ -652,17 +676,15 @@ apply_texture_attributes(Texture *tex, const EggTexture *egg_tex) {
}
switch (egg_tex->get_magfilter()) {
case EggTexture::FT_point:
case EggTexture::FT_mipmap_point:
case EggTexture::FT_nearest:
case EggTexture::FT_nearest_mipmap_nearest:
case EggTexture::FT_nearest_mipmap_linear:
tex->set_magfilter(Texture::FT_nearest);
break;
case EggTexture::FT_linear:
case EggTexture::FT_bilinear:
case EggTexture::FT_trilinear:
case EggTexture::FT_mipmap_linear:
case EggTexture::FT_mipmap_bilinear:
case EggTexture::FT_mipmap_trilinear:
case EggTexture::FT_linear_mipmap_nearest:
case EggTexture::FT_linear_mipmap_linear:
if (egg_ignore_filters) {
egg2sg_cat.warning()
<< "Ignoring magfilter request\n";
@ -681,6 +703,10 @@ apply_texture_attributes(Texture *tex, const EggTexture *egg_tex) {
}
}
if (egg_tex->has_anisotropic_degree()) {
tex->set_anisotropic_degree(egg_tex->get_anisotropic_degree());
}
if (tex->_pbuffer->get_num_components() == 1) {
switch (egg_tex->get_format()) {
case EggTexture::F_red:

15
panda/src/gobj/texture.I
View File

@ -64,3 +64,18 @@ INLINE Texture::FilterType Texture::
get_magfilter() const {
return _magfilter;
}
////////////////////////////////////////////////////////////////////
// Function: Texture::get_anisotropic_degree
// Access: Public
// Description: Returns the degree of anisotropic filtering that
// should be applied to the texture. Normally, this is
// 1, to indicate that anisotropic filtering should be
// disabled. If this is a number higher than 1,
// anisotropic filtering should be enabled (if the
// rendering backend supports it).
////////////////////////////////////////////////////////////////////
INLINE int Texture::
get_anisotropic_degree() const {
return _anisotropic_degree;
}

28
panda/src/gobj/texture.cxx
View File

@ -36,6 +36,7 @@ Texture() : ImageBuffer() {
_minfilter = FT_nearest;
_wrapu = WM_repeat;
_wrapv = WM_repeat;
_anisotropic_degree = 1;
_pbuffer = new PixelBuffer;
_has_requested_size = false;
}
@ -360,6 +361,23 @@ void Texture::set_magfilter(FilterType filter)
}
}
////////////////////////////////////////////////////////////////////
// Function: set_anisotropic_degree
// Access: Public
// Description: Specifies the level of anisotropic filtering to apply
// to the texture. Normally, this is 1, to indicate
// anisotropic filtering is disabled. This may be set
// to a number higher than one to enable anisotropic
// filtering, if the rendering backend supports this.
////////////////////////////////////////////////////////////////////
void Texture::
set_anisotropic_degree(int anisotropic_degree) {
if (_anisotropic_degree != anisotropic_degree) {
unprepare();
_anisotropic_degree = anisotropic_degree;
}
}
////////////////////////////////////////////////////////////////////
// Function: Texture::write_datagram
// Access: Public
@ -377,6 +395,7 @@ write_datagram(BamWriter *manager, Datagram &me)
me.add_uint8(_magfilter);
me.add_uint8(_magfiltercolor);
me.add_uint8(_magfilteralpha);
me.add_int16(_anisotropic_degree);
}
////////////////////////////////////////////////////////////////////
@ -388,8 +407,7 @@ write_datagram(BamWriter *manager, Datagram &me)
// place
////////////////////////////////////////////////////////////////////
void Texture::
fillin(DatagramIterator& scan, BamReader*)
{
fillin(DatagramIterator &scan, BamReader *manager) {
//We don't want to call ImageBuffer::fillin, like we
//would normally, since due to needing to know the name
//of the Texture before creating it, we have already read
@ -404,6 +422,12 @@ fillin(DatagramIterator& scan, BamReader*)
_magfilter = (enum FilterType) scan.get_uint8();
_magfiltercolor = (enum FilterType) scan.get_uint8();
_magfilteralpha = (enum FilterType) scan.get_uint8();
if (manager->get_file_minor_ver() >= 4) {
_anisotropic_degree = scan.get_int16();
} else {
_anisotropic_degree = 1;
}
}
////////////////////////////////////////////////////////////////////

16
panda/src/gobj/texture.h
View File

@ -30,13 +30,26 @@ class EXPCL_PANDA Texture : public ImageBuffer {
public:
enum FilterType {
// Mag Filter and Min Filter
// Point sample the pixel
FT_nearest,
// Bilinear filtering of four neighboring pixels
FT_linear,
// Min Filter Only
// Point sample the pixel from the nearest mipmap level
FT_nearest_mipmap_nearest,
// Bilinear filter the pixel from the nearest mipmap level
FT_linear_mipmap_nearest,
// Point sample the pixel from two mipmap levels, and linearly blend
FT_nearest_mipmap_linear,
// A.k.a. trilinear filtering: Bilinear filter the pixel from
// two mipmap levels, and linearly blend the results.
FT_linear_mipmap_linear,
};
@ -78,12 +91,14 @@ public:
void set_wrapv( WrapMode wrap );
void set_minfilter( FilterType filter );
void set_magfilter( FilterType filter );
void set_anisotropic_degree(int anisotropic_degree);
INLINE int get_level() const;
INLINE WrapMode get_wrapu() const;
INLINE WrapMode get_wrapv() const;
INLINE FilterType get_minfilter() const;
INLINE FilterType get_magfilter() const;
INLINE int get_anisotropic_degree() const;
public:
static void register_with_read_factory(void);
@ -124,6 +139,7 @@ protected:
FilterType _magfilter;
FilterType _magfiltercolor;
FilterType _magfilteralpha;
int _anisotropic_degree;
// A Texture keeps a list (actually, a map) of all the GSG's that it
// has been prepared into. Each GSG conversely keeps a list (a set)

3
panda/src/putil/bam.h
View File

@ -17,10 +17,11 @@ static const string _bam_header = string("pbj\0\n\r", 6);
static const unsigned short _bam_major_ver = 2;
// Bumped to major version 2 on 7/6/00 due to major changes in Character.
static const unsigned short _bam_minor_ver = 3;
static const unsigned short _bam_minor_ver = 4;
// Bumped to minor version 1 on 7/19/00 to quantize channel files.
// Bumped to minor version 2 on 8/21/00 for CollisionNode::_collide_geom.
// Bumped to minor version 3 on 11/21/00 for dual-image textures.
// Bumped to minor version 4 on 11/28/00 for anisotropic texture filtering.
#endif