-#include <msp/gl/extensions/arb_draw_instanced.h>
#include <msp/gl/extensions/msp_primitive_restart.h>
#include "batch.h"
#include "buffer.h"
namespace {
template<typename T>
-void append(vector<Msp::UInt8> &data, T i)
+void append(vector<uint8_t> &data, T i)
{
data.insert(data.end(), sizeof(T), 0);
*(T *)(&data[data.size()-sizeof(T)]) = i;
}
template<typename T, typename U>
-void expand(vector<Msp::UInt8> &data)
+void expand(vector<uint8_t> &data)
{
unsigned count = data.size()/sizeof(T);
data.resize(count*sizeof(U));
}
template<typename T, typename U>
-void shrink(vector<Msp::UInt8> &data)
+void shrink(vector<uint8_t> &data)
{
unsigned count = data.size()/sizeof(T);
for(unsigned i=0; i<count; ++i)
namespace Msp {
namespace GL {
-unsigned Batch::restart_index = 0;
-
Batch::Batch(PrimitiveType t):
prim_type(t),
+ gl_prim_type(GL::get_gl_primitive_type(prim_type)),
index_type(UNSIGNED_SHORT),
gl_index_type(get_gl_type(index_type)),
- max_index(0),
- restart(false)
+ max_index(0)
{ }
Batch::~Batch()
throw invalid_operation("Batch::set_data_type");
if(index_type==UNSIGNED_SHORT && t==UNSIGNED_INT)
- expand<UInt16, UInt32>(data);
+ expand<uint16_t, uint32_t>(data);
else if(index_type==UNSIGNED_INT && t==UNSIGNED_SHORT)
- shrink<UInt32, UInt16>(data);
+ shrink<uint32_t, uint16_t>(data);
index_type = t;
gl_index_type = get_gl_type(t);
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);
+ for(unsigned i: ind)
+ append_index(i);
update_offset();
dirty = true;
;
else if(MSP_primitive_restart)
{
- restart = true;
if(index_type==UNSIGNED_INT)
- ::append<UInt32>(data, 0xFFFFFFFF);
+ ::append<uint32_t>(data, 0xFFFFFFFF);
else
- ::append<UInt16>(data, 0xFFFF);
+ ::append<uint16_t>(data, 0xFFFF);
}
else if(prim_type==TRIANGLE_STRIP)
{
set_index_type(UNSIGNED_INT);
if(index_type==UNSIGNED_INT)
- ::append<UInt32>(data, i);
+ ::append<uint32_t>(data, i);
else
- ::append<UInt16>(data, i);
+ ::append<uint16_t>(data, i);
}
unsigned Batch::get_index_size() const
{
- return (index_type==UNSIGNED_INT ? sizeof(UInt32) : sizeof(UInt16));
+ return (index_type==UNSIGNED_INT ? sizeof(uint32_t) : sizeof(uint16_t));
}
unsigned Batch::get_index(unsigned i) const
{
if(index_type==UNSIGNED_INT)
- return *(UInt32 *)&data[i*sizeof(UInt32)];
- else
- return *(UInt16 *)&data[i*sizeof(UInt16)];
-}
-
-void Batch::draw() const
-{
- const void *data_ptr = setup_draw();
- glDrawElements(prim_type, size(), gl_index_type, data_ptr);
-}
-
-void Batch::draw_instanced(unsigned count) const
-{
- static Require req(ARB_draw_instanced);
-
- const void *data_ptr = setup_draw();
- glDrawElementsInstanced(prim_type, size(), gl_index_type, data_ptr, count);
-}
-
-const void *Batch::setup_draw() const
-{
- if(!get_buffer())
- throw invalid_operation("Batch::setup_draw");
-
- if(restart)
- {
- unsigned index = (index_type==UNSIGNED_INT ? 0xFFFFFFFF : 0xFFFF);
-
- if(index!=restart_index)
- set_restart_index(index);
- }
- else if(restart_index && restart_index<=max_index)
- set_restart_index(0);
-
- refresh();
-
- return reinterpret_cast<const void *>(get_offset());
-}
-
-void Batch::set_restart_index(unsigned index)
-{
- if(index>0)
- {
- if(!restart_index)
- glEnable(GL_PRIMITIVE_RESTART);
- glPrimitiveRestartIndex(index);
- }
+ return *(uint32_t *)&data[i*sizeof(uint32_t)];
else
- glDisable(GL_PRIMITIVE_RESTART);
-
- restart_index = index;
+ return *(uint16_t *)&data[i*sizeof(uint16_t)];
}