+++ /dev/null
-#include "arb_multitexture.h"
-#include "arb_vertex_shader.h"
-#include "buffer.h"
-#include "error.h"
-#include "gl.h"
-#include "vertexarray.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-VertexArray::ArrayMask VertexArray::enabled_arrays;
-
-VertexArray::VertexArray(const VertexFormat &f):
- defer_vbuf(true),
- dirty(false)
-{
- reset(f);
-}
-
-VertexArray::~VertexArray()
-{ }
-
-void VertexArray::reset(const VertexFormat &f)
-{
- clear();
- format = f;
- stride = get_stride(format);
-
- 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 Require _req(ARB_multitexture);
- if(has_gen_attrs)
- static Require _req(ARB_vertex_shader);
-}
-
-void VertexArray::use_vertex_buffer()
-{
- if(vbuf)
- return;
-
- vbuf = new Buffer(ARRAY_BUFFER);
- defer_vbuf = false;
- dirty = true;
-}
-
-void VertexArray::use_vertex_buffer(Buffer *b)
-{
- vbuf = b;
- vbuf.keep();
- defer_vbuf = false;
- dirty = true;
-}
-
-void VertexArray::clear()
-{
- data.clear();
-}
-
-void VertexArray::reserve(unsigned n)
-{
- data.reserve(n*stride);
-}
-
-float *VertexArray::append()
-{
- data.insert(data.end(), stride, 0.0f);
- set_dirty();
- return &*(data.end()-stride);
-}
-
-float *VertexArray::modify(unsigned i)
-{
- set_dirty();
- return &data[0]+i*stride;
-}
-
-void VertexArray::set_dirty()
-{
- dirty = true;
- if(defer_vbuf)
- {
- vbuf = new Buffer(ARRAY_BUFFER);
- defer_vbuf = false;
- }
-}
-
-void VertexArray::apply() const
-{
- if(format.empty())
- throw invalid_operation("VertexArray::apply");
-
- if(vbuf)
- {
- vbuf->bind_to(ARRAY_BUFFER);
- if(dirty)
- {
- vbuf->data(data.size()*sizeof(float), &data[0]);
- dirty = false;
- }
- }
-
- 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)
- {
- unsigned sz = get_component_size(*c);
- unsigned t = get_component_type(*c);
- bool en = enabled_arrays.is_set(t);
- if(t==get_component_type(VERTEX3))
- {
- glVertexPointer(sz, GL_FLOAT, bpv, base+offset);
- if(!en)
- glEnableClientState(GL_VERTEX_ARRAY);
- }
- else if(t==get_component_type(NORMAL3))
- {
- glNormalPointer(GL_FLOAT, bpv, base+offset);
- if(!en)
- glEnableClientState(GL_NORMAL_ARRAY);
- }
- else if(t==get_component_type(COLOR4_FLOAT))
- {
- 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);
- }
- else if(*c>=TEXCOORD1 && *c<=TEXCOORD4+28)
- {
- t -= get_component_type(TEXCOORD1);
- if(t>0 || active_tex)
- {
- glClientActiveTexture(GL_TEXTURE0+t);
- active_tex = t;
- }
- glTexCoordPointer(sz, GL_FLOAT, bpv, base+offset);
- if(!en)
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
- }
- else
- {
- t -= get_component_type(ATTRIB1);
- glVertexAttribPointer(t, sz, GL_FLOAT, false, bpv, base+offset);
- if(!en)
- glEnableVertexAttribArray(t);
- }
- found.set(t);
- offset += sz;
- }
-
- for(unsigned i=0; i<64; ++i)
- if(enabled_arrays.is_set(i) && !found.is_set(i))
- {
- if(i==get_component_type(VERTEX3))
- glDisableClientState(GL_VERTEX_ARRAY);
- else if(i==get_component_type(NORMAL3))
- glDisableClientState(GL_NORMAL_ARRAY);
- else if(i==get_component_type(COLOR4_FLOAT))
- glDisableClientState(GL_COLOR_ARRAY);
- else if(i>=get_component_type(TEXCOORD1) && i<=get_component_type(TEXCOORD1)+7)
- {
- unsigned j = i-get_component_type(TEXCOORD1);
- if(j>0 || active_tex)
- glClientActiveTexture(GL_TEXTURE0+j);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
- active_tex = j;
- }
- else
- glDisableVertexAttribArray(i-get_component_type(ATTRIB1));
- }
-
- enabled_arrays = found;
-
- if(active_tex)
- glClientActiveTexture(GL_TEXTURE0);
-
- if(vbuf)
- Buffer::unbind_from(ARRAY_BUFFER);
-}
-
-
-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):
- VertexArrayBuilder(a)
-{
- add("vertex2", static_cast<void (Loader::*)(float, float)>(&Loader::vertex));
- add("vertex3", static_cast<void (Loader::*)(float, float, float)>(&Loader::vertex));
- add("vertex4", static_cast<void (Loader::*)(float, float, float, float)>(&Loader::vertex));
- add("normal3", static_cast<void (Loader::*)(float, float, float)>(&Loader::normal));
- add("texcoord1", static_cast<void (Loader::*)(float)>(&Loader::texcoord));
- 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));
-}
-
-} // namespace GL
-} // namespace Msp
projects / libs / gl.git / blobdiff