-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
+#include "arb_vertex_program.h"
+#include "buffer.h"
+#include "extension.h"
#include "gl.h"
+#include "version_1_2.h"
+#include "version_1_3.h"
#include "vertexarray.h"
-#include "vertexbuffer.h"
using namespace std;
namespace Msp {
namespace GL {
-VertexArray::VertexArray(VertexFormat f):
- format(NODATA),
- stride(get_stride(f)),
- vbuf(0),
- own_vbuf(false)
+VertexArray::ArrayMask VertexArray::enabled_arrays;
+
+VertexArray::VertexArray(const VertexFormat &f):
+ defer_vbuf(true),
+ dirty(false)
{
- // Reverse the format so the first item is in lowest bits. This makes handling in bind() easier.
- for(uint fmt=f; fmt; fmt>>=4)
- format=(format, static_cast<VertexFormat>(fmt&15));
+ reset(f);
}
VertexArray::~VertexArray()
-{
- if(own_vbuf)
- delete vbuf;
-}
+{ }
void VertexArray::use_vertex_buffer()
{
- if(vbuf) return;
+ if(vbuf)
+ return;
- vbuf=new VertexBuffer();
- own_vbuf=true;
- update_data();
+ vbuf = new Buffer(ARRAY_BUFFER);
+ defer_vbuf = false;
+ dirty = true;
}
-void VertexArray::use_vertex_buffer(VertexBuffer *b)
+void VertexArray::use_vertex_buffer(Buffer *b)
{
- if(vbuf) return;
-
- vbuf=b;
- update_data();
+ vbuf = b;
+ vbuf.keep();
+ defer_vbuf = false;
+ dirty = true;
}
void VertexArray::reserve(unsigned n)
data.clear();
}
-void VertexArray::reset(VertexFormat f)
+void VertexArray::reset(const VertexFormat &f)
{
clear();
- format=NODATA;
- for(uint fmt=f; fmt; fmt>>=4)
- format=(format, static_cast<VertexFormat>(fmt&15));
- stride=get_stride(format);
-}
+ format = f;
+ stride = get_stride(format);
-RefPtr<VertexArrayBuilder> VertexArray::modify()
-{
- return new VertexArrayBuilder(*this);
+ bool has_multitex = false;
+ bool has_gen_attrs = false;
+ for(const unsigned char *c=format.begin(); c!=format.end(); ++c)
+ {
+ if(*c>=TEXCOORD1+4 && *c<ATTRIB1)
+ has_multitex = true;
+ if(*c>=ATTRIB1)
+ has_gen_attrs = true;
+ }
+ if(has_multitex)
+ static RequireVersion _ver(1, 3);
+ if(has_gen_attrs)
+ static RequireExtension _ext("GL_ARB_vertex_program");
}
void VertexArray::apply() const
{
- if(format==NODATA)
- throw InvalidState("Trying to apply a vertex apply of format NODATA");
+ if(format.empty())
+ throw InvalidState("Trying to apply a vertex array with no data");
if(vbuf)
- vbuf->bind();
+ {
+ vbuf->bind_to(ARRAY_BUFFER);
+ if(dirty)
+ {
+ vbuf->data(data.size()*sizeof(float), &data[0]);
+ dirty = false;
+ }
+ }
- const float *base=vbuf?0:&data[0];
- uint offset=0;
- uint found=0;
- uint bpv=stride*sizeof(float);
- for(uint fmt=format; fmt; fmt>>=4)
+ const float *base = (vbuf ? 0 : &data[0]);
+ unsigned offset = 0;
+ ArrayMask found;
+ unsigned bpv = stride*sizeof(float);
+ unsigned active_tex = 0;
+ for(const unsigned char *c=format.begin(); c!=format.end(); ++c)
{
- uint sz=(fmt&3)+1;
- switch(fmt&12)
+ unsigned sz = (*c&3)+1;
+ unsigned t = *c>>2;
+ bool en = enabled_arrays.is_set(t);
+ switch(t)
{
case 0:
glVertexPointer(sz, GL_FLOAT, bpv, base+offset);
+ if(!en)
+ glEnableClientState(GL_VERTEX_ARRAY);
break;
- case 4:
+ case 1:
glNormalPointer(GL_FLOAT, bpv, base+offset);
+ if(!en)
+ glEnableClientState(GL_NORMAL_ARRAY);
break;
- case 8:
- glTexCoordPointer(sz, GL_FLOAT, bpv, base+offset);
- break;
- case 12:
+ case 2:
if(sz==1)
glColorPointer(4, GL_UNSIGNED_BYTE, bpv, base+offset);
else
glColorPointer(sz, GL_FLOAT, bpv, base+offset);
+ if(!en)
+ glEnableClientState(GL_COLOR_ARRAY);
+ break;
+ default:
+ if(t<11)
+ {
+ if(t>3 || active_tex)
+ {
+ glClientActiveTexture(GL_TEXTURE0+(t-3));
+ active_tex = t-3;
+ }
+ glTexCoordPointer(sz, GL_FLOAT, bpv, base+offset);
+ if(!en)
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+ else
+ {
+ glVertexAttribPointerARB(t-11, sz, GL_FLOAT, false, bpv, base+offset);
+ if(!en)
+ glEnableVertexAttribArrayARB(t-11);
+ }
break;
}
- found|=1<<((fmt&12)>>2);
- offset+=sz;
+ found.set(t);
+ offset += sz;
}
- set_array(GL_VERTEX_ARRAY, found&1, 1);
- set_array(GL_NORMAL_ARRAY, found&2, 2);
- set_array(GL_TEXTURE_COORD_ARRAY, found&4, 4);
- set_array(GL_COLOR_ARRAY, found&8, 8);
+ for(unsigned i=0; i<64; ++i)
+ if(enabled_arrays.is_set(i) && !found.is_set(i))
+ {
+ if(i==0)
+ glDisableClientState(GL_VERTEX_ARRAY);
+ else if(i==1)
+ glDisableClientState(GL_NORMAL_ARRAY);
+ else if(i==2)
+ glDisableClientState(GL_COLOR_ARRAY);
+ else if(i>=3 && i<11)
+ {
+ if(i>3 || active_tex)
+ glClientActiveTexture(GL_TEXTURE0+(i-3));
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ active_tex = i-3;
+ }
+ else
+ glDisableVertexAttribArrayARB(i-11);
+ }
+
+ enabled_arrays = found;
+
+ if(active_tex)
+ glClientActiveTexture(GL_TEXTURE0);
- VertexBuffer::unbind();
+ if(vbuf)
+ Buffer::unbind_from(ARRAY_BUFFER);
}
-/**
-Updates the VertexArray data to the VertexBuffer tied to the array, if any.
-*/
-void VertexArray::update_data()
+float *VertexArray::append()
{
- if(vbuf)
- vbuf->data(data.size()*sizeof(float), &data[0]);
+ data.insert(data.end(), stride, 0.0f);
+ set_dirty();
+ return &*(data.end()-stride);
}
-void VertexArray::set_array(unsigned array, unsigned bit, unsigned mask) const
+float *VertexArray::modify(unsigned i)
{
- if((enabled_arrays&mask) && !bit)
- {
- glDisableClientState(array);
- enabled_arrays&=~mask;
- }
- else if(!(enabled_arrays&mask) && bit)
+ set_dirty();
+ return &data[0]+i*stride;
+}
+
+void VertexArray::set_dirty()
+{
+ dirty = true;
+ if(defer_vbuf)
{
- glEnableClientState(array);
- enabled_arrays|=mask;
+ vbuf = new Buffer(ARRAY_BUFFER);
+ defer_vbuf = false;
}
}
-unsigned VertexArray::enabled_arrays=0;
+
+VertexArray::ArrayMask::ArrayMask()
+{
+ for(unsigned i=0; i<N; ++i)
+ mask[i] = 0;
+}
+
+void VertexArray::ArrayMask::set(unsigned bit)
+{
+ mask[bit/B] |= 1<<(bit%B);
+}
+
+bool VertexArray::ArrayMask::is_set(unsigned bit) const
+{
+ return mask[bit/B]&(1<<(bit%B));
+}
VertexArray::Loader::Loader(VertexArray &a):
add("texcoord2", static_cast<void (Loader::*)(float, float)>(&Loader::texcoord));
add("texcoord3", static_cast<void (Loader::*)(float, float, float)>(&Loader::texcoord));
add("texcoord4", static_cast<void (Loader::*)(float, float, float, float)>(&Loader::texcoord));
+ add("multitexcoord1", static_cast<void (Loader::*)(unsigned, float)>(&Loader::multitexcoord));
+ add("multitexcoord2", static_cast<void (Loader::*)(unsigned, float, float)>(&Loader::multitexcoord));
+ add("multitexcoord3", static_cast<void (Loader::*)(unsigned, float, float, float)>(&Loader::multitexcoord));
+ add("multitexcoord4", static_cast<void (Loader::*)(unsigned, float, float, float, float)>(&Loader::multitexcoord));
add("color3", static_cast<void (Loader::*)(float, float, float)>(&Loader::color));
add("color4", static_cast<void (Loader::*)(float, float, float, float)>(&Loader::color));
+ add("attrib1", static_cast<void (Loader::*)(unsigned, float)>(&Loader::attrib));
+ add("attrib2", static_cast<void (Loader::*)(unsigned, float, float)>(&Loader::attrib));
+ add("attrib3", static_cast<void (Loader::*)(unsigned, float, float, float)>(&Loader::attrib));
+ add("attrib4", static_cast<void (Loader::*)(unsigned, float, float, float, float)>(&Loader::attrib));
+}
+
+
+void array_element(int i)
+{
+ glArrayElement(i);
+}
+
+void draw_arrays(PrimitiveType mode, int first, unsigned count)
+{
+ glDrawArrays(mode, first, count);
+}
+
+void draw_elements(PrimitiveType mode, unsigned count, DataType type, const void *indices)
+{
+ glDrawElements(mode, count, type, indices);
+}
+
+void draw_range_elements(PrimitiveType mode, unsigned low, unsigned high, unsigned count, DataType type, const void *indices)
+{
+ static RequireVersion _ver(1, 2);
+ glDrawRangeElements(mode, low, high, count, type, indices);
}
} // namespace GL
projects / libs / gl.git / blobdiff