X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fbatch.cpp;h=af1d243e6cba1551e6be65255a55e69a4e7029cf;hb=HEAD;hp=1d9b1d4cd4ab7081a3bf95522056f61b91375217;hpb=50175b88e2f189e80881d292dcc32523c5b272fc;p=libs%2Fgl.git

diff --git a/source/batch.cpp b/source/batch.cpp
deleted file mode 100644
index 1d9b1d4c..00000000
--- a/source/batch.cpp
+++ /dev/null
@@ -1,349 +0,0 @@
-#include "batch.h"
-#include "bindable.h"
-#include "buffer.h"
-#include "error.h"
-#include "ext_draw_range_elements.h"
-#include "nv_primitive_restart.h"
-#include "vertexarray.h"
-
-using namespace std;
-
-namespace {
-
-template<typename T>
-void append(vector<unsigned char> &data, T i)
-{
-	data.insert(data.end(), sizeof(T), 0);
-	*(T *)(&data[data.size()-sizeof(T)]) = i;
-}
-
-template<typename T, typename U>
-U convert(T n)
-{
-	if(!static_cast<T>(~n))
-		return ~0;
-	else
-		return n;
-}
-
-template<typename T, typename U>
-void expand(vector<unsigned char> &data)
-{
-	unsigned count = data.size()/sizeof(T);
-	data.resize(count*sizeof(U));
-	for(unsigned i=count; i--;)
-		*(U *)(&data[i*sizeof(U)]) = convert<T, U>(*(T *)(&data[i*sizeof(T)]));
-}
-
-template<typename T, typename U>
-void shrink(vector<unsigned char> &data)
-{
-	unsigned count = data.size()/sizeof(T);
-	for(unsigned i=0; i<count; ++i)
-		*(U *)(&data[i*sizeof(U)]) = convert<T, U>(*(T *)(&data[i*sizeof(T)]));
-	data.resize(count*sizeof(U));
-}
-
-}
-
-namespace Msp {
-namespace GL {
-
-unsigned Batch::restart_index = 0;
-
-Batch::Batch(PrimitiveType t):
-	prim_type(t),
-	data_type(UNSIGNED_BYTE),
-	min_index(0),
-	max_index(0),
-	restart(false),
-	ibuf(0),
-	ibuf_offset(0),
-	next_in_ibuf(0),
-	prev_in_ibuf(0),
-	dirty(false)
-{
-	/* XXX Should probably provide a fallback to glDrawElements since this class
-	is pretty much required to render anything. */
-	static Require _req(EXT_draw_range_elements);
-}
-
-Batch::~Batch()
-{
-	unlink_from_ibuf();
-}
-
-void Batch::set_data_type(DataType t)
-{
-	if(t!=UNSIGNED_BYTE && t!=UNSIGNED_SHORT && t!=UNSIGNED_INT)
-		throw invalid_argument("Batch::set_data_type");
-	if(t==UNSIGNED_BYTE && max_index>0xFE)
-		throw invalid_operation("Batch::set_data_type");
-	else if(t==UNSIGNED_SHORT && max_index>0xFFFE)
-		throw invalid_operation("Batch::set_data_type");
-
-	if(data_type==UNSIGNED_BYTE && t==UNSIGNED_SHORT)
-		expand<unsigned char, unsigned short>(data);
-	else if(data_type==UNSIGNED_BYTE && t==UNSIGNED_INT)
-		expand<unsigned char, unsigned>(data);
-	else if(data_type==UNSIGNED_SHORT && t==UNSIGNED_INT)
-		expand<unsigned short, unsigned>(data);
-	else if(data_type==UNSIGNED_INT && t==UNSIGNED_BYTE)
-		shrink<unsigned, unsigned char>(data);
-	else if(data_type==UNSIGNED_INT && t==UNSIGNED_SHORT)
-		shrink<unsigned, unsigned short>(data);
-	else if(data_type==UNSIGNED_SHORT && t==UNSIGNED_BYTE)
-		shrink<unsigned short, unsigned char>(data);
-
-	data_type = t;
-	update_ibuf_offsets();
-	dirty = true;
-}
-
-void Batch::use_index_buffer(Buffer *buf, Batch *prev)
-{
-	if(buf && prev && prev->ibuf!=buf)
-		throw invalid_argument("Batch::use_index_buffer");
-
-	if(!buf)
-	{
-		prev = 0;
-		unlink_from_ibuf();
-	}
-
-	ibuf = buf;
-	prev_in_ibuf = prev;
-	next_in_ibuf = 0;
-	if(prev)
-	{
-		prev->next_in_ibuf = this;
-		ibuf_offset = prev->ibuf_offset+prev->data.size();
-	}
-	else
-		ibuf_offset = 0;
-
-	dirty = true;
-}
-
-void Batch::unlink_from_ibuf()
-{
-	if(next_in_ibuf)
-		next_in_ibuf->prev_in_ibuf = prev_in_ibuf;
-	if(prev_in_ibuf)
-	{
-		prev_in_ibuf->next_in_ibuf = next_in_ibuf;
-		prev_in_ibuf->update_ibuf_offsets();
-	}
-	else if(next_in_ibuf)
-	{
-		next_in_ibuf->ibuf_offset = 0;
-		next_in_ibuf->update_ibuf_offsets();
-	}
-}
-
-void Batch::update_ibuf_offsets()
-{
-	for(Batch *b=this; b->next_in_ibuf; b=b->next_in_ibuf)
-		b->next_in_ibuf->ibuf_offset = b->ibuf_offset+b->data.size();
-}
-
-Batch &Batch::append(unsigned i)
-{
-	if(data.empty())
-		min_index = max_index = i;
-	else
-	{
-		min_index = min(min_index, i);
-		max_index = max(max_index, i);
-	}
-
-	if((data_type==UNSIGNED_BYTE || data_type==UNSIGNED_SHORT) && max_index>0xFFFE)
-		set_data_type(UNSIGNED_INT);
-	else if(data_type==UNSIGNED_BYTE && max_index>0xFE)
-		set_data_type(UNSIGNED_SHORT);
-
-	if(data_type==UNSIGNED_SHORT)
-		::append<unsigned short>(data, i);
-	else if(data_type==UNSIGNED_INT)
-		::append<unsigned>(data, i);
-	else
-		data.push_back(i);
-	
-	update_ibuf_offsets();
-	dirty = true;
-
-	return *this;
-}
-
-void Batch::append(const vector<unsigned> &ind)
-{
-	if(ind.empty())
-		return;
-
-	if(data.empty())
-		min_index = max_index = ind.front();
-
-	for(vector<unsigned>::const_iterator i=ind.begin(); i!=ind.end(); ++i)
-	{
-		min_index = min(min_index, *i);
-		max_index = max(max_index, *i);
-	}
-
-	if((data_type==UNSIGNED_BYTE || data_type==UNSIGNED_SHORT) && max_index>0xFFFE)
-		set_data_type(UNSIGNED_INT);
-	else if(data_type==UNSIGNED_BYTE && max_index>0xFE)
-		set_data_type(UNSIGNED_SHORT);
-
-	unsigned base = data.size();
-	data.resize(data.size()+ind.size()*get_index_size());
-	if(data_type==UNSIGNED_SHORT)
-	{
-		unsigned short *ptr = reinterpret_cast<unsigned short *>(&data[base]);
-		for(unsigned i=0; i<ind.size(); ++i)
-			ptr[i] = ind[i];
-	}
-	else if(data_type==UNSIGNED_INT)
-	{
-		unsigned *ptr = reinterpret_cast<unsigned *>(&data[base]);
-		for(unsigned i=0; i<ind.size(); ++i)
-			ptr[i] = ind[i];
-	}
-	else
-	{
-		for(unsigned i=0; i<ind.size(); ++i)
-			data[base+i] = ind[i];
-	}
-}
-
-void Batch::append(const Batch &other)
-{
-	if(other.prim_type!=prim_type)
-		throw invalid_argument("Batch::append");
-	if(prim_type==LINE_STRIP || prim_type==LINE_LOOP)
-		throw incompatible_data("Batch::append");
-	else if(prim_type==POLYGON)
-		throw incompatible_data("Batch::append");
-	else if(prim_type==TRIANGLE_FAN)
-		static Require _req(NV_primitive_restart);
-
-	if(other.data.empty())
-		return;
-
-	if(NV_primitive_restart)
-	{
-		restart = true;
-		if(data_type==UNSIGNED_SHORT)
-			::append<unsigned short>(data, 0xFFFF);
-		else if(data_type==UNSIGNED_INT)
-			::append<unsigned>(data, 0xFFFFFFFF);
-		else
-			data.push_back(0xFF);
-	}
-	else if(prim_type==TRIANGLE_STRIP)
-	{
-		append(get_index(size()-1));
-		append(other.get_index(0));
-		if(size()&1)
-			append(other.get_index(0));
-	}
-	else if(prim_type==QUAD_STRIP)
-	{
-		append(get_index(size()-1));
-		append(get_index(size()-1));
-		append(other.get_index(0));
-		append(other.get_index(0));
-	}
-
-	unsigned count = other.size();
-	for(unsigned i=0; i<count; ++i)
-		append(other.get_index(i));
-}
-
-unsigned Batch::get_index_size() const
-{
-	if(data_type==UNSIGNED_SHORT)
-		return sizeof(unsigned short);
-	else if(data_type==UNSIGNED_INT)
-		return sizeof(unsigned);
-	return sizeof(unsigned char);
-}
-
-unsigned Batch::get_index(unsigned i) const
-{
-	if(data_type==UNSIGNED_SHORT)
-		return *(unsigned short *)&data[i*sizeof(unsigned short)];
-	else if(data_type==UNSIGNED_INT)
-		return *(unsigned *)&data[i*sizeof(unsigned )];
-	else
-		return data[i];
-}
-
-void Batch::draw() const
-{
-	if(restart)
-	{
-		unsigned index;
-		if(data_type==UNSIGNED_SHORT)
-			index = 0xFFFF;
-		else if(data_type==UNSIGNED_INT)
-			index = 0xFFFFFFFF;
-		else
-			index = 0xFF;
-
-		if(index!=restart_index)
-		{
-			if(!restart_index)
-				glEnableClientState(GL_PRIMITIVE_RESTART_NV);
-			glPrimitiveRestartIndexNV(index);
-			restart_index = index;
-		}
-	}
-	else if(restart_index && restart_index<max_index)
-	{
-		glDisableClientState(GL_PRIMITIVE_RESTART_NV);
-		restart_index = 0;
-	}
-
-	if(ibuf)
-	{
-		if(dirty)
-		{
-			const Batch *b = this;
-			for(; b->prev_in_ibuf; b=b->prev_in_ibuf) ;
-
-			unsigned chain_size = 0;
-			for(const Batch *a=b; a; a=a->next_in_ibuf)
-				chain_size += a->data.size();
-
-			ibuf->data(chain_size, 0);
-
-			for(; b; b=b->next_in_ibuf)
-			{
-				ibuf->sub_data(b->ibuf_offset, b->data.size(), &b->data[0]);
-				b->dirty = false;
-			}
-		}
-
-		BufferAlias<ELEMENT_ARRAY_BUFFER> alias(*ibuf);
-		Bind bind_ibuf(alias, true);
-
-		glDrawRangeElements(prim_type, min_index, max_index, size(), data_type, reinterpret_cast<void *>(ibuf_offset));
-	}
-	else
-		glDrawRangeElements(prim_type, min_index, max_index, size(), data_type, &data[0]);
-}
-
-
-Batch::Loader::Loader(Batch &b):
-	DataFile::ObjectLoader<Batch>(b)
-{
-	add("indices", &Loader::indices);
-}
-
-void Batch::Loader::indices(const vector<unsigned> &ind)
-{
-	obj.append(ind);
-}
-
-} // namespace GL
-} // namespace Msp