X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fvertexarray.cpp;h=a4dffbb7bae4876af7c9535a1f965e8431b64f7b;hp=e8fa36a030bf5991a89bf4ed8f79944543ced413;hb=HEAD;hpb=3f4a818023513129e4eae2099c30f7842bb2ccd0 diff --git a/source/vertexarray.cpp b/source/vertexarray.cpp deleted file mode 100644 index e8fa36a0..00000000 --- a/source/vertexarray.cpp +++ /dev/null @@ -1,257 +0,0 @@ -#include -#include -#include "buffer.h" -#include "error.h" -#include "gl.h" -#include "mesh.h" -#include "vertexarray.h" - -using namespace std; - -namespace Msp { -namespace GL { - -VertexArray::VertexArray(const VertexFormat &f) -{ - reset(f); -} - -VertexArray::~VertexArray() -{ - if(current()==this) - { - /* We must deactivate arrays here, or apply() would try to access deleted - data on the next invocation. */ - set_current(0); - apply_arrays(0, &arrays, 0, 0); - } -} - -void VertexArray::reset(const VertexFormat &f) -{ - clear(); - format = f; - stride = get_stride(format); - - arrays.clear(); - - unsigned offs = 0; - for(const unsigned char *c=format.begin(); c!=format.end(); ++c) - { - unsigned slot = get_array_slot(*c); - if(slot>=arrays.size()) - arrays.resize(slot+1); - - Array &arr = arrays[slot]; - arr.component = *c; - arr.offset = offs; - - offs += get_component_size(*c); - } -} - -unsigned VertexArray::get_array_slot(unsigned char comp) -{ - unsigned t = get_component_type(comp); - if(t==get_component_type(VERTEX3)) - return 0; - else if(t==get_component_type(NORMAL3)) - return 1; - else if(t==get_component_type(COLOR4_FLOAT)) - return 2; - else if(comp>=TEXCOORD1 && comp<=TEXCOORD4+12) - { - t -= get_component_type(TEXCOORD1); - if(t>0) - static Require _req(ARB_multitexture); - return 3+t; - } - else - { - static Require _req(ARB_vertex_shader); - if(comp>=ATTRIB1) - t -= get_component_type(ATTRIB1); - return 7+t; - } -} - -void VertexArray::clear() -{ - data.clear(); -} - -void VertexArray::reserve(unsigned n) -{ - data.reserve(n*stride); -} - -float *VertexArray::append() -{ - data.insert(data.end(), stride, 0.0f); - dirty = true; - return &*(data.end()-stride); -} - -float *VertexArray::modify(unsigned i) -{ - dirty = true; - return &data[0]+i*stride; -} - -unsigned VertexArray::get_data_size() const -{ - return data.size()*sizeof(float); -} - -void VertexArray::upload_data() const -{ - get_buffer()->sub_data(get_offset(), get_data_size(), &data[0]); -} - -void VertexArray::apply() const -{ - if(format.empty()) - throw invalid_operation("VertexArray::apply"); - // Don't mess up the vertex array object of a mesh - if(Mesh::current()) - throw invalid_operation("VertexArray::apply"); - - const VertexArray *old = current(); - /* If the array has been modified, apply it even if it was the last one to - be applied. This is necessary to get the data updated to vertex buffer, and - to resync things after a format change. Radeon drivers also have some - problems with modifying vertex arrays without re-setting the pointers. */ - if(!set_current(this) && !dirty) - return; - - Buffer *vbuf = get_buffer(); - if(vbuf) - { - vbuf->bind_to(ARRAY_BUFFER); - if(dirty) - update_buffer(); - } - - const float *base = (vbuf ? reinterpret_cast(get_offset()) : &data[0]); - unsigned stride_bytes = stride*sizeof(float); - apply_arrays(&arrays, (old ? &old->arrays : 0), base, stride_bytes); - - if(vbuf) - Buffer::unbind_from(ARRAY_BUFFER); -} - -void VertexArray::apply_arrays(const vector *arrays, const vector *old_arrays, const float *base, unsigned stride_bytes) -{ - unsigned active_tex = 0; - unsigned n_arrays = arrays ? arrays->size() : 0; - if(old_arrays) - n_arrays = max(n_arrays, old_arrays->size()); - for(unsigned i=0; isize() && (*arrays)[i].component) ? &(*arrays)[i] : 0); - const Array *old_arr = ((old_arrays && isize() && (*old_arrays)[i].component) ? &(*old_arrays)[i] : 0); - if(!arr && !old_arr) - continue; - - unsigned char comp = (arr ? arr->component : old_arr->component); - unsigned sz = get_component_size(comp); - unsigned t = get_component_type(comp); - GLenum array_type = 0; - if(t==get_component_type(VERTEX3)) - { - if(arr) - glVertexPointer(sz, GL_FLOAT, stride_bytes, base+arr->offset); - array_type = GL_VERTEX_ARRAY; - } - else if(t==get_component_type(NORMAL3)) - { - if(arr) - glNormalPointer(GL_FLOAT, stride_bytes, base+arr->offset); - array_type = GL_NORMAL_ARRAY; - } - else if(t==get_component_type(COLOR4_FLOAT)) - { - if(arr) - { - if(sz==1) - glColorPointer(4, GL_UNSIGNED_BYTE, stride_bytes, base+arr->offset); - else - glColorPointer(sz, GL_FLOAT, stride_bytes, base+arr->offset); - } - array_type = GL_COLOR_ARRAY; - } - else if(comp>=TEXCOORD1 && comp<=TEXCOORD4+12) - { - t -= get_component_type(TEXCOORD1); - if(t>0 || active_tex) - { - glClientActiveTexture(GL_TEXTURE0+t); - active_tex = t; - } - if(arr) - glTexCoordPointer(sz, GL_FLOAT, stride_bytes, base+arr->offset); - array_type = GL_TEXTURE_COORD_ARRAY; - } - else - { - if(t>=get_component_type(ATTRIB1)) - t -= get_component_type(ATTRIB1); - if(arr) - glVertexAttribPointer(t, sz, GL_FLOAT, false, stride_bytes, base+arr->offset); - } - - // Only change enable state if needed - if(arr && !old_arr) - { - if(array_type) - glEnableClientState(array_type); - else - glEnableVertexAttribArray(t); - } - else if(old_arr && !arr) - { - if(array_type) - glDisableClientState(array_type); - else - glDisableVertexAttribArray(t); - } - } - - if(active_tex) - glClientActiveTexture(GL_TEXTURE0); -} - - -VertexArray::Array::Array(): - component(0), - offset(0) -{ } - - -VertexArray::Loader::Loader(VertexArray &a): - VertexArrayBuilder(a) -{ - add("vertex2", static_cast(&Loader::vertex)); - add("vertex3", static_cast(&Loader::vertex)); - add("vertex4", static_cast(&Loader::vertex)); - add("normal3", static_cast(&Loader::normal)); - add("texcoord1", static_cast(&Loader::texcoord)); - add("texcoord2", static_cast(&Loader::texcoord)); - add("texcoord3", static_cast(&Loader::texcoord)); - add("texcoord4", static_cast(&Loader::texcoord)); - add("multitexcoord1", static_cast(&Loader::multitexcoord)); - add("multitexcoord2", static_cast(&Loader::multitexcoord)); - add("multitexcoord3", static_cast(&Loader::multitexcoord)); - add("multitexcoord4", static_cast(&Loader::multitexcoord)); - add("color3", static_cast(&Loader::color)); - add("color4", static_cast(&Loader::color)); - add("attrib1", static_cast(&Loader::attrib)); - add("attrib2", static_cast(&Loader::attrib)); - add("attrib3", static_cast(&Loader::attrib)); - add("attrib4", static_cast(&Loader::attrib)); - add("tangent3", static_cast(&Loader::tangent)); - add("binormal3", static_cast(&Loader::binormal)); -} - -} // namespace GL -} // namespace Msp