X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbatch.cpp;h=af1d243e6cba1551e6be65255a55e69a4e7029cf;hp=b61da0bac79aee1507ac536efa46815c6a5c127a;hb=HEAD;hpb=a40fc85277dba5c34402a0e703d038efd30cc57b

diff --git a/source/batch.cpp b/source/batch.cpp
deleted file mode 100644
index b61da0ba..00000000
--- a/source/batch.cpp
+++ /dev/null
@@ -1,289 +0,0 @@
-#include <msp/gl/extensions/arb_draw_instanced.h>
-#include <msp/gl/extensions/ext_draw_range_elements.h>
-#include <msp/gl/extensions/msp_primitive_restart.h>
-#include "batch.h"
-#include "bindable.h"
-#include "buffer.h"
-#include "error.h"
-#include "mesh.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)
-{ }
-
-Batch::~Batch()
-{
-}
-
-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_offset();
-	dirty = true;
-}
-
-Batch &Batch::append(unsigned i)
-{
-	append_index(i);
-
-	update_offset();
-	dirty = true;
-
-	return *this;
-}
-
-Batch &Batch::append(const vector<unsigned> &ind)
-{
-	if(ind.empty())
-		return *this;
-
-	data.reserve(data.size()+ind.size()*get_index_size());
-	for(vector<unsigned>::const_iterator i=ind.begin(); i!=ind.end(); ++i)
-		append_index(*i);
-
-	update_offset();
-	dirty = true;
-
-	return *this;
-}
-
-bool Batch::can_append(PrimitiveType other_type)
-{
-	if(other_type!=prim_type)
-		return false;
-	else if(prim_type==LINE_STRIP || prim_type==LINE_LOOP || prim_type==TRIANGLE_FAN)
-		return MSP_primitive_restart;
-	else
-		return true;
-}
-
-Batch &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 || prim_type==TRIANGLE_FAN)
-		static Require _req(MSP_primitive_restart);
-
-	if(other.data.empty())
-		return *this;
-
-	if(prim_type==POINTS || prim_type==LINES || prim_type==TRIANGLES)
-		;
-	else if(MSP_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));
-	}
-
-	unsigned count = other.size();
-	for(unsigned i=0; i<count; ++i)
-		append_index(other.get_index(i));
-
-	update_offset();
-	dirty = true;
-
-	return *this;
-}
-
-void Batch::append_index(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);
-}
-
-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
-{
-	BindRestore _bind_ibuf(get_buffer(), ELEMENT_ARRAY_BUFFER);
-	const void *data_ptr = setup_draw();
-
-	if(EXT_draw_range_elements)
-		glDrawRangeElements(prim_type, min_index, max_index, size(), data_type, data_ptr);
-	else
-		glDrawElements(prim_type, size(), data_type, data_ptr);
-}
-
-void Batch::draw_instanced(unsigned count) const
-{
-	static Require req(ARB_draw_instanced);
-
-	BindRestore _bind_ibuf(get_buffer(), ELEMENT_ARRAY_BUFFER);
-	const void *data_ptr = setup_draw();
-
-	glDrawElementsInstanced(prim_type, size(), data_type, data_ptr, count);
-}
-
-const void *Batch::setup_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)
-			set_restart_index(index);
-	}
-	else if(restart_index && restart_index<=max_index)
-		set_restart_index(0);
-
-	if(get_buffer())
-	{
-		if(dirty)
-			update_buffer();
-
-		return reinterpret_cast<const void *>(get_offset());
-	}
-	else
-		return &data[0];
-}
-
-void Batch::set_restart_index(unsigned index)
-{
-	if(index>0)
-	{
-		if(!restart_index)
-			glEnable(GL_PRIMITIVE_RESTART);
-		glPrimitiveRestartIndex(index);
-	}
-	else
-		glDisable(GL_PRIMITIVE_RESTART);
-
-	restart_index = index;
-}
-
-
-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