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panda3d/panda/src/gobj/qpgeomVertexData.cxx
David Rose 048f90a297 fix dx colors
2005-03-28 03:10:58 +00:00

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// Filename: qpgeomVertexData.cxx
// Created by: drose (06Mar05)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license. You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////
#include "qpgeomVertexData.h"
#include "qpgeomVertexReader.h"
#include "qpgeomVertexWriter.h"
#include "pStatTimer.h"
#include "bamReader.h"
#include "bamWriter.h"
#include "pset.h"
#include "indent.h"
TypeHandle qpGeomVertexData::_type_handle;
PStatCollector qpGeomVertexData::_convert_pcollector("Cull:Munge:Convert");
PStatCollector qpGeomVertexData::_scale_color_pcollector("Cull:Munge:Scale color");
PStatCollector qpGeomVertexData::_set_color_pcollector("Cull:Munge:Set color");
PStatCollector qpGeomVertexData::_animate_vertices_pcollector("Cull:Animate vertices");
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::Default Constructor
// Access: Private
// Description: Constructs an invalid object. This is only used when
// reading from the bam file.
////////////////////////////////////////////////////////////////////
qpGeomVertexData::
qpGeomVertexData() :
_this_animate_vertices_pcollector(_animate_vertices_pcollector)
{
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::Constructor
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
qpGeomVertexData::
qpGeomVertexData(const string &name,
const qpGeomVertexFormat *format,
qpGeomUsageHint::UsageHint usage_hint) :
_name(name),
_format(format),
_usage_hint(usage_hint),
_this_animate_vertices_pcollector(_animate_vertices_pcollector, name)
{
nassertv(_format->is_registered());
// Create some empty arrays as required by the format.
CDWriter cdata(_cycler);
int num_arrays = _format->get_num_arrays();
for (int i = 0; i < num_arrays; i++) {
PT(qpGeomVertexArrayData) array = new qpGeomVertexArrayData
(_format->get_array(i), usage_hint);
cdata->_arrays.push_back(array);
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::Copy Constructor
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
qpGeomVertexData::
qpGeomVertexData(const qpGeomVertexData &copy) :
TypedWritableReferenceCount(copy),
_name(copy._name),
_format(copy._format),
_cycler(copy._cycler),
_this_animate_vertices_pcollector(copy._this_animate_vertices_pcollector)
{
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::Copy Assignment Operator
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
operator = (const qpGeomVertexData &copy) {
TypedWritableReferenceCount::operator = (copy);
_name = copy._name;
_format = copy._format;
_cycler = copy._cycler;
_this_animate_vertices_pcollector = copy._this_animate_vertices_pcollector;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::Destructor
// Access: Published, Virtual
// Description:
////////////////////////////////////////////////////////////////////
qpGeomVertexData::
~qpGeomVertexData() {
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::get_num_vertices
// Access: Published
// Description: Returns the number of vertices stored within all the
// arrays. All arrays store data for the same n
// vertices.
////////////////////////////////////////////////////////////////////
int qpGeomVertexData::
get_num_vertices() const {
CDReader cdata(_cycler);
nassertr(_format->get_num_arrays() == (int)cdata->_arrays.size(), 0);
if (_format->get_num_arrays() == 0) {
// No arrays means no vertices. Weird but legal.
return 0;
}
// Look up the answer on the first array (since any array will do).
int stride = _format->get_array(0)->get_stride();
return cdata->_arrays[0]->get_data_size_bytes() / stride;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::clear_vertices
// Access: Published
// Description: Removes all of the vertices from the arrays;
// functionally equivalent to set_num_vertices(0) (but
// faster).
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
clear_vertices() {
CDWriter cdata(_cycler);
nassertv(_format->get_num_arrays() == (int)cdata->_arrays.size());
Arrays::iterator ai;
for (ai = cdata->_arrays.begin();
ai != cdata->_arrays.end();
++ai) {
(*ai)->clear_vertices();
}
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices.clear();
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::modify_array
// Access: Published
// Description: Returns a modifiable pointer to the indicated vertex
// array, so that application code may directly
// manipulate the vertices. You should avoid changing
// the length of this array, since all of the arrays
// should be kept in sync--use add_vertices() instead.
////////////////////////////////////////////////////////////////////
qpGeomVertexArrayData *qpGeomVertexData::
modify_array(int i) {
// Perform copy-on-write: if the reference count on the vertex data
// is greater than 1, assume some other GeomVertexData has the same
// pointer, so make a copy of it first.
CDWriter cdata(_cycler);
nassertr(i >= 0 && i < (int)cdata->_arrays.size(), NULL);
if (cdata->_arrays[i]->get_ref_count() > 1) {
cdata->_arrays[i] = new qpGeomVertexArrayData(*cdata->_arrays[i]);
}
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices_modified = UpdateSeq();
return cdata->_arrays[i];
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::set_array
// Access: Published
// Description: Replaces the indicated vertex data array with
// a completely new array. You should be careful that
// the new array has the same length as the old one,
// unless you know what you are doing.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
set_array(int i, const qpGeomVertexArrayData *array) {
CDWriter cdata(_cycler);
nassertv(i >= 0 && i < (int)cdata->_arrays.size());
cdata->_arrays[i] = (qpGeomVertexArrayData *)array;
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices_modified = UpdateSeq();
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::modify_transform_blend_palette
// Access: Published
// Description: Returns a modifiable pointer to the current
// TransformBlendPalette on this vertex data, if any, or
// NULL if there is not a TransformBlendPalette. See
// get_transform_blend_palette().
////////////////////////////////////////////////////////////////////
TransformBlendPalette *qpGeomVertexData::
modify_transform_blend_palette() {
// Perform copy-on-write: if the reference count on the palette is
// greater than 1, assume some other GeomVertexData has the same
// pointer, so make a copy of it first.
CDWriter cdata(_cycler);
if (cdata->_transform_blend_palette->get_ref_count() > 1) {
cdata->_transform_blend_palette = new TransformBlendPalette(*cdata->_transform_blend_palette);
}
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices_modified = UpdateSeq();
return cdata->_transform_blend_palette;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::set_transform_blend_palette
// Access: Published
// Description: Replaces the TransformBlendPalette on this vertex
// data with the indicated palette. The length of this
// palette should be consistent with the maximum palette
// index assigned to the vertices under the
// "transform_blend" name.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
set_transform_blend_palette(const TransformBlendPalette *palette) {
CDWriter cdata(_cycler);
cdata->_transform_blend_palette = (TransformBlendPalette *)palette;
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices_modified = UpdateSeq();
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::get_num_bytes
// Access: Published
// Description: Returns the total number of bytes consumed by the
// different arrays of the vertex data.
////////////////////////////////////////////////////////////////////
int qpGeomVertexData::
get_num_bytes() const {
CDReader cdata(_cycler);
int num_bytes = sizeof(qpGeomVertexData);
Arrays::const_iterator ai;
for (ai = cdata->_arrays.begin(); ai != cdata->_arrays.end(); ++ai) {
num_bytes += (*ai)->get_data_size_bytes();
}
return num_bytes;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::convert_to
// Access: Published
// Description: Matches up the data types of this format with the
// data types of the other format by name, and copies
// the data vertex-by-vertex to a new set of data arrays
// in the new format.
////////////////////////////////////////////////////////////////////
CPT(qpGeomVertexData) qpGeomVertexData::
convert_to(const qpGeomVertexFormat *new_format) const {
if (new_format == _format) {
// Trivial case: no change is needed.
return this;
}
// Okay, convert the data to the new format.
int num_vertices = get_num_vertices();
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "Converting " << num_vertices << " vertices.\n";
}
PStatTimer timer(_convert_pcollector);
PT(qpGeomVertexData) new_data =
new qpGeomVertexData(get_name(), new_format, get_usage_hint());
new_data->set_transform_blend_palette(get_transform_blend_palette());
pset<int> done_arrays;
int num_arrays = _format->get_num_arrays();
int i;
// First, check to see if any arrays can be simply appropriated for
// the new format, without changing the data.
for (i = 0; i < num_arrays; ++i) {
const qpGeomVertexArrayFormat *array_format =
_format->get_array(i);
bool array_done = false;
int new_num_arrays = new_format->get_num_arrays();
for (int new_i = 0;
new_i < new_num_arrays && !array_done;
++new_i) {
const qpGeomVertexArrayFormat *new_array_format =
new_format->get_array(new_i);
if (new_array_format->is_data_subset_of(*array_format)) {
// Great! Just use the same data for this one.
new_data->set_array(new_i, get_array(i));
array_done = true;
done_arrays.insert(new_i);
}
}
}
// Now make sure the arrays we didn't share are all filled in.
new_data->set_num_vertices(num_vertices);
// Now go back through and copy any data that's left over.
for (i = 0; i < num_arrays; ++i) {
CPTA_uchar array_data = get_array(i)->get_data();
const qpGeomVertexArrayFormat *array_format = _format->get_array(i);
int num_data_types = array_format->get_num_data_types();
for (int di = 0; di < num_data_types; ++di) {
const qpGeomVertexDataType *data_type = array_format->get_data_type(di);
int new_i = new_format->get_array_with(data_type->get_name());
if (new_i >= 0 && done_arrays.count(new_i) == 0) {
// The data type exists in the new format; we have to copy it.
const qpGeomVertexArrayFormat *new_array_format =
new_format->get_array(new_i);
const qpGeomVertexDataType *new_data_type =
new_array_format->get_data_type(data_type->get_name());
if (new_data_type->is_bytewise_equivalent(*data_type)) {
// We can do a quick bytewise copy.
PTA_uchar new_array_data =
new_data->modify_array(new_i)->modify_data();
bytewise_copy(new_array_data + new_data_type->get_start(),
new_array_format->get_stride(),
array_data + data_type->get_start(), array_format->get_stride(),
data_type, num_vertices);
} else if (new_data_type->is_packed_argb() &&
data_type->is_uint8_rgba()) {
// A common special case: OpenGL color to DirectX color.
PTA_uchar new_array_data =
new_data->modify_array(new_i)->modify_data();
uint8_rgba_to_packed_argb
(new_array_data + new_data_type->get_start(),
new_array_format->get_stride(),
array_data + data_type->get_start(), array_format->get_stride(),
num_vertices);
} else if (new_data_type->is_uint8_rgba() &&
data_type->is_packed_argb()) {
// Another common special case: DirectX color to OpenGL
// color.
PTA_uchar new_array_data =
new_data->modify_array(new_i)->modify_data();
packed_argb_to_uint8_rgba
(new_array_data + new_data_type->get_start(),
new_array_format->get_stride(),
array_data + data_type->get_start(), array_format->get_stride(),
num_vertices);
} else {
// A generic copy.
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "generic copy " << *new_data_type << " from "
<< *data_type << "\n";
}
qpGeomVertexReader from(this);
from.set_data_type(i, data_type);
qpGeomVertexWriter to(new_data);
to.set_data_type(new_i, new_data_type);
while (!from.is_at_end()) {
to.set_data4f(from.get_data4f());
}
}
}
}
}
return new_data;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::scale_color
// Access: Published
// Description: Returns a new GeomVertexData object with the color
// table replaced with a new color table that has been
// scaled by the indicated value. The new color table
// will be added as a new array; if the old color table
// was interleaved with a previous array, the previous
// array will not be repacked.
////////////////////////////////////////////////////////////////////
CPT(qpGeomVertexData) qpGeomVertexData::
scale_color(const LVecBase4f &color_scale, int num_components,
qpGeomVertexDataType::NumericType numeric_type,
qpGeomVertexDataType::Contents contents) const {
int old_color_array = _format->get_array_with(InternalName::get_color());
if (old_color_array == -1) {
// Oops, no color anyway.
return this;
}
int num_vertices = get_num_vertices();
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "Scaling color for " << num_vertices << " vertices by "
<< color_scale << ".\n";
}
PStatTimer timer(_scale_color_pcollector);
PT(qpGeomVertexData) new_data = replace_data_type
(InternalName::get_color(), num_components, numeric_type,
contents, get_usage_hint(), true);
// Now go through and apply the scale, copying it to the new data.
qpGeomVertexReader from(this, InternalName::get_color());
qpGeomVertexWriter to(new_data, InternalName::get_color());
for (int i = 0; i < num_vertices; i++) {
Colorf color = from.get_data4f();
to.set_data4f(color[0] * color_scale[0],
color[1] * color_scale[1],
color[2] * color_scale[2],
color[3] * color_scale[3]);
}
return new_data;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::set_color
// Access: Published
// Description: Returns a new GeomVertexData object with the color
// table replaced with a new color table for which each
// vertex has the indicated value. The new color table
// will be added as a new array; if the old color table
// was interleaved with a previous array, the previous
// array will not be repacked.
////////////////////////////////////////////////////////////////////
CPT(qpGeomVertexData) qpGeomVertexData::
set_color(const Colorf &color, int num_components,
qpGeomVertexDataType::NumericType numeric_type,
qpGeomVertexDataType::Contents contents) const {
int num_vertices = get_num_vertices();
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "Setting color for " << num_vertices << " vertices to "
<< color << ".\n";
}
PStatTimer timer(_set_color_pcollector);
PT(qpGeomVertexData) new_data = replace_data_type
(InternalName::get_color(), num_components, numeric_type,
contents, get_usage_hint(), true);
// Now go through and set the new color value.
qpGeomVertexWriter to(new_data, InternalName::get_color());
for (int i = 0; i < num_vertices; i++) {
to.set_data4f(color);
}
return new_data;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::animate_vertices
// Access: Published
// Description: Returns a GeomVertexData that represents the results
// of computing the vertex animation on the CPU for this
// GeomVertexData.
//
// If there is no CPU-defined vertex animation on this
// object, this just returns the original object.
//
// If there is vertex animation, but the VertexTransform
// values have not changed since last time, this may
// return the same pointer it returned previously. Even
// if the VertexTransform values have changed, it may
// still return the same pointer, but with its contents
// modified (this is preferred, since it allows the
// graphics backend to update vertex buffers optimally).
////////////////////////////////////////////////////////////////////
CPT(qpGeomVertexData) qpGeomVertexData::
animate_vertices() const {
CDReader cdata(_cycler);
if (cdata->_transform_blend_palette == (TransformBlendPalette *)NULL) {
// No vertex animation.
return this;
}
if (cdata->_animated_vertices == (qpGeomVertexData *)NULL) {
CDWriter cdataw(((qpGeomVertexData *)this)->_cycler, cdata);
((qpGeomVertexData *)this)->make_animated_vertices(cdataw);
return cdataw->_animated_vertices;
} else {
UpdateSeq blend_modified = cdata->_transform_blend_palette->get_modified();
if (cdata->_animated_vertices_modified == blend_modified) {
// No changes.
return cdata->_animated_vertices;
}
CDWriter cdataw(((qpGeomVertexData *)this)->_cycler, cdata);
cdataw->_animated_vertices_modified = blend_modified;
((qpGeomVertexData *)this)->update_animated_vertices(cdataw);
return cdataw->_animated_vertices;
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::replace_data_type
// Access: Published
// Description: Returns a new GeomVertexData object, suitable for
// modification, with the indicated data type replaced
// with a new table filled with undefined values. The
// new table will be added as a new array; if the old
// table was interleaved with a previous array, the
// previous array will not be repacked.
//
// If num_components is 0, the indicated name is simply
// removed from the type, without replacing it with
// anything else.
////////////////////////////////////////////////////////////////////
PT(qpGeomVertexData) qpGeomVertexData::
replace_data_type(const InternalName *name, int num_components,
qpGeomVertexDataType::NumericType numeric_type,
qpGeomVertexDataType::Contents contents,
qpGeomUsageHint::UsageHint usage_hint,
bool keep_animation) const {
PT(qpGeomVertexFormat) new_format = new qpGeomVertexFormat(*_format);
// Remove the old description of the type from the format.
bool removed_type_array = false;
int old_type_array = _format->get_array_with(name);
if (old_type_array != -1) {
qpGeomVertexArrayFormat *array_format = new_format->modify_array(old_type_array);
if (array_format->get_num_data_types() == 1) {
// Actually, this array didn't have any other data types, so
// just drop the whole array.
new_format->remove_array(old_type_array);
removed_type_array = true;
} else {
// Remove the description for the type, but don't bother to
// repack the array.
array_format->remove_data_type(name);
}
}
// Now define a new array to contain just the type.
int new_type_array = -1;
if (num_components != 0) {
PT(qpGeomVertexArrayFormat) type_array_format =
new qpGeomVertexArrayFormat(name, num_components, numeric_type, contents);
new_type_array = new_format->add_array(type_array_format);
}
CPT(qpGeomVertexFormat) format =
qpGeomVertexFormat::register_format(new_format);
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "Replacing data type " << *name << "; converting "
<< get_num_vertices() << " vertices from "
<< *_format << " to " << *new_format << "\n";
}
PT(qpGeomVertexData) new_data =
new qpGeomVertexData(get_name(), format, usage_hint);
if (keep_animation) {
new_data->set_transform_blend_palette(get_transform_blend_palette());
}
int j = 0;
int num_arrays = get_num_arrays();
for (int i = 0; i < num_arrays; ++i) {
if (i == old_type_array) {
if (!removed_type_array) {
// Pointer-copy the original array that includes the type
// (since it also includes other data).
new_data->set_array(j, get_array(i));
++j;
}
} else {
// Just pointer-copy any arrays other than type.
new_data->set_array(j, get_array(i));
++j;
}
}
if (new_type_array != -1) {
nassertr(j == new_type_array, new_data);
// For the new type array, we set up a temporary array that has
// room for the right number of vertices.
PT(qpGeomVertexArrayData) new_array = new qpGeomVertexArrayData
(new_format->get_array(j), get_usage_hint());
new_array->set_num_vertices(get_num_vertices());
new_data->set_array(j, new_array);
}
return new_data;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::output
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
output(ostream &out) const {
out << get_num_vertices() << ": " << *get_format();
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::write
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
write(ostream &out, int indent_level) const {
_format->write_with_data(out, indent_level, this);
if (get_transform_blend_palette() != (TransformBlendPalette *)NULL) {
indent(out, indent_level)
<< "Transform blend palette:\n";
get_transform_blend_palette()->write(out, indent_level + 2);
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::get_array_info
// Access: Public
// Description: A convenience function to collect together the
// important parts of the array data for rendering.
// Given the name of a data type, fills in the start of
// the array, the number of floats for each vertex, the
// starting bytes number, and the number of bytes to
// increment for each consecutive vertex.
//
// The return value is true if the named array data
// exists in this record, or false if it does not (in
// which case none of the output parameters are valid).
////////////////////////////////////////////////////////////////////
bool qpGeomVertexData::
get_array_info(const InternalName *name,
const qpGeomVertexArrayData *&array_data,
int &num_components,
qpGeomVertexDataType::NumericType &numeric_type,
int &start, int &stride) const {
int array_index;
const qpGeomVertexDataType *data_type;
if (_format->get_array_info(name, array_index, data_type)) {
CDReader cdata(_cycler);
array_data = cdata->_arrays[array_index];
num_components = data_type->get_num_components();
numeric_type = data_type->get_numeric_type();
start = data_type->get_start();
stride = _format->get_array(array_index)->get_stride();
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::bytewise_copy
// Access: Private, Static
// Description: Quickly copies data without the need to convert it.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
bytewise_copy(unsigned char *to, int to_stride,
const unsigned char *from, int from_stride,
const qpGeomVertexDataType *from_type,
int num_records) {
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "bytewise_copy(" << (void *)to << ", " << to_stride
<< ", " << (const void *)from << ", " << from_stride
<< ", " << *from_type << ", " << num_records << ")\n";
}
if (to_stride == from_type->get_total_bytes() &&
from_stride == from_type->get_total_bytes()) {
// Fantastic! It's just a linear array of this one data type.
// Copy the whole thing all at once.
memcpy(to, from, num_records * from_type->get_total_bytes());
} else {
// Ok, it's interleaved in with other data. Copy them one record
// at a time.
while (num_records > 0) {
memcpy(to, from, from_type->get_total_bytes());
to += to_stride;
from += from_stride;
num_records--;
}
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::packed_argb_to_uint8_rgba
// Access: Private, Static
// Description: Quickly converts DirectX-style color to OpenGL-style
// color.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
packed_argb_to_uint8_rgba(unsigned char *to, int to_stride,
const unsigned char *from, int from_stride,
int num_records) {
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "packed_argb_to_uint8_rgba(" << (void *)to << ", " << to_stride
<< ", " << (const void *)from << ", " << from_stride
<< ", " << num_records << ")\n";
}
while (num_records > 0) {
PN_uint32 dword = *(const PN_uint32 *)from;
to[0] = unpack_8888_b(dword);
to[1] = unpack_8888_c(dword);
to[2] = unpack_8888_d(dword);
to[3] = unpack_8888_a(dword);
to += to_stride;
from += from_stride;
num_records--;
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::uint8_rgba_to_packed_argb
// Access: Private, Static
// Description: Quickly converts OpenGL-style color to DirectX-style
// color.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
uint8_rgba_to_packed_argb(unsigned char *to, int to_stride,
const unsigned char *from, int from_stride,
int num_records) {
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "uint8_rgba_to_packed_argb(" << (void *)to << ", " << to_stride
<< ", " << (const void *)from << ", " << from_stride
<< ", " << num_records << ")\n";
}
while (num_records > 0) {
*(PN_uint32 *)to = pack_8888(from[3], from[0], from[1], from[2]);
to += to_stride;
from += from_stride;
num_records--;
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::do_set_num_vertices
// Access: Private
// Description: The private implementation of set_num_vertices().
////////////////////////////////////////////////////////////////////
bool qpGeomVertexData::
do_set_num_vertices(int n, qpGeomVertexData::CDWriter &cdata) {
nassertr(_format->get_num_arrays() == (int)cdata->_arrays.size(), false);
bool any_changed = false;
for (size_t i = 0; i < cdata->_arrays.size(); i++) {
if (cdata->_arrays[i]->get_num_vertices() != n) {
// Copy-on-write.
if (cdata->_arrays[i]->get_ref_count() > 1) {
cdata->_arrays[i] = new qpGeomVertexArrayData(*cdata->_arrays[i]);
}
cdata->_arrays[i]->set_num_vertices(n);
any_changed = true;
}
}
if (any_changed) {
cdata->_modified = qpGeom::get_next_modified();
cdata->_animated_vertices.clear();
}
return any_changed;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::make_animated_vertices
// Access: Private
// Description: Creates the GeomVertexData that represents the
// results of computing the vertex animation on the CPU.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
make_animated_vertices(qpGeomVertexData::CDWriter &cdata) {
// First, make a new format that doesn't have the transform_blend
// array.
cdata->_animated_vertices = replace_data_type
(InternalName::get_transform_blend(), 0, qpGeomVertexDataType::NT_uint16,
qpGeomVertexDataType::C_index,
min(get_usage_hint(), qpGeomUsageHint::UH_dynamic), false);
// Now fill it up with the appropriate data.
update_animated_vertices(cdata);
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::update_animated_vertices
// Access: Private
// Description: Recomputes the results of computing the vertex
// animation on the CPU, and applies them to the
// existing animated_vertices object.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
update_animated_vertices(qpGeomVertexData::CDWriter &cdata) {
int num_vertices = get_num_vertices();
if (gobj_cat.is_debug()) {
gobj_cat.debug()
<< "Animating " << num_vertices << " vertices for " << get_name()
<< "\n";
}
PStatTimer timer(_this_animate_vertices_pcollector);
CPT(TransformBlendPalette) palette = cdata->_transform_blend_palette;
nassertv(palette != (TransformBlendPalette *)NULL);
// Recompute all the blends up front.
int num_blends = palette->get_num_blends();
int bi;
for (bi = 0; bi < num_blends; bi++) {
palette->get_blend(bi).update_blend();
}
PT(qpGeomVertexData) new_data = cdata->_animated_vertices;
// Now go through and apply the scale, copying it to the new data.
qpGeomVertexReader from(this, InternalName::get_vertex());
qpGeomVertexReader blendi(this, InternalName::get_transform_blend());
qpGeomVertexWriter to(new_data, InternalName::get_vertex());
if (from.get_data_type()->get_num_values() == 4) {
for (int i = 0; i < num_vertices; i++) {
LPoint4f vertex = from.get_data4f();
int bi = blendi.get_data1i();
palette->get_blend(bi).transform_point(vertex);
to.set_data4f(vertex);
}
} else {
for (int i = 0; i < num_vertices; i++) {
LPoint3f vertex = from.get_data3f();
int bi = blendi.get_data1i();
palette->get_blend(bi).transform_point(vertex);
to.set_data3f(vertex);
}
}
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::register_with_read_factory
// Access: Public, Static
// Description: Tells the BamReader how to create objects of type
// qpGeomVertexData.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
register_with_read_factory() {
BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::write_datagram
// Access: Public, Virtual
// Description: Writes the contents of this object to the datagram
// for shipping out to a Bam file.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
write_datagram(BamWriter *manager, Datagram &dg) {
TypedWritable::write_datagram(manager, dg);
manager->write_cdata(dg, _cycler);
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::make_from_bam
// Access: Protected, Static
// Description: This function is called by the BamReader's factory
// when a new object of type qpGeomVertexData is encountered
// in the Bam file. It should create the qpGeomVertexData
// and extract its information from the file.
////////////////////////////////////////////////////////////////////
TypedWritable *qpGeomVertexData::
make_from_bam(const FactoryParams &params) {
qpGeomVertexData *object = new qpGeomVertexData;
DatagramIterator scan;
BamReader *manager;
parse_params(params, scan, manager);
object->fillin(scan, manager);
return object;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::fillin
// Access: Protected
// Description: This internal function is called by make_from_bam to
// read in all of the relevant data from the BamFile for
// the new qpGeomVertexData.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::
fillin(DatagramIterator &scan, BamReader *manager) {
TypedWritable::fillin(scan, manager);
manager->read_cdata(scan, _cycler);
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::CData::make_copy
// Access: Public, Virtual
// Description:
////////////////////////////////////////////////////////////////////
CycleData *qpGeomVertexData::CData::
make_copy() const {
return new CData(*this);
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::CData::write_datagram
// Access: Public, Virtual
// Description: Writes the contents of this object to the datagram
// for shipping out to a Bam file.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::CData::
write_datagram(BamWriter *manager, Datagram &dg) const {
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::CData::complete_pointers
// Access: Public, Virtual
// Description: Receives an array of pointers, one for each time
// manager->read_pointer() was called in fillin().
// Returns the number of pointers processed.
////////////////////////////////////////////////////////////////////
int qpGeomVertexData::CData::
complete_pointers(TypedWritable **p_list, BamReader *manager) {
int pi = CycleData::complete_pointers(p_list, manager);
return pi;
}
////////////////////////////////////////////////////////////////////
// Function: qpGeomVertexData::CData::fillin
// Access: Public, Virtual
// Description: This internal function is called by make_from_bam to
// read in all of the relevant data from the BamFile for
// the new qpGeomVertexData.
////////////////////////////////////////////////////////////////////
void qpGeomVertexData::CData::
fillin(DatagramIterator &scan, BamReader *manager) {
}
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