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Code Issues 123 Wiki Activity

multi texturing support for display list mode

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This commit is contained in:
tmj-fstate
2017-07-25 17:42:43 +02:00
parent d2d93616fa
commit 2f1358422d
5 changed files with 43 additions and 22 deletions
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30
openglgeometrybank.cpp
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@@ -98,9 +98,9 @@ geometry_bank::append( vertex_array &Vertices, geometry_handle const &Geometry )
// draws geometry stored in specified chunk
void
geometry_bank::draw( geometry_handle const &Geometry, unsigned int const Streams ) {
geometry_bank::draw( geometry_handle const &Geometry, stream_units const &Units, unsigned int const Streams ) {
// template method implementation
draw_( Geometry, Streams );
draw_( Geometry, Units, Streams );
}
// frees subclass-specific resources associated with the bank, typically called when the bank wasn't in use for a period of time
@@ -148,7 +148,7 @@ opengl_vbogeometrybank::replace_( geometry_handle const &Geometry ) {
// draw() subclass details
void
opengl_vbogeometrybank::draw_( geometry_handle const &Geometry, unsigned int const Streams ) {
opengl_vbogeometrybank::draw_( geometry_handle const &Geometry, stream_units const &Units, unsigned int const Streams ) {
if( m_buffer == NULL ) {
// if there's no buffer, we'll have to make one
@@ -203,7 +203,7 @@ opengl_vbogeometrybank::draw_( geometry_handle const &Geometry, unsigned int con
chunkrecord.is_good = true;
}
if( m_activestreams != Streams ) {
bind_streams( Streams );
bind_streams( Units, Streams );
}
// ...render...
::glDrawArrays( chunk.type, chunkrecord.offset, chunkrecord.size );
@@ -239,7 +239,7 @@ opengl_vbogeometrybank::delete_buffer() {
::glDeleteBuffers( 1, &m_buffer );
if( m_activebuffer == m_buffer ) {
m_activebuffer = NULL;
bind_streams( stream::none );
release_streams();
}
m_buffer = NULL;
m_buffercapacity = 0;
@@ -249,7 +249,7 @@ opengl_vbogeometrybank::delete_buffer() {
}
void
opengl_vbogeometrybank::bind_streams( unsigned int const Streams ) {
opengl_vbogeometrybank::bind_streams( stream_units const &Units, unsigned int const Streams ) {
if( Streams & stream::position ) {
::glVertexPointer( 3, GL_FLOAT, sizeof( basic_vertex ), static_cast<char *>( nullptr ) );
@@ -274,6 +274,7 @@ opengl_vbogeometrybank::bind_streams( unsigned int const Streams ) {
::glDisableClientState( GL_COLOR_ARRAY );
}
if( Streams & stream::texture ) {
::glClientActiveTexture( Units.texture );
::glTexCoordPointer( 2, GL_FLOAT, sizeof( basic_vertex ), static_cast<char *>( nullptr ) + 24 );
::glEnableClientState( GL_TEXTURE_COORD_ARRAY );
}
@@ -284,6 +285,17 @@ opengl_vbogeometrybank::bind_streams( unsigned int const Streams ) {
m_activestreams = Streams;
}
void
opengl_vbogeometrybank::release_streams() {
::glDisableClientState( GL_VERTEX_ARRAY );
::glDisableClientState( GL_NORMAL_ARRAY );
::glDisableClientState( GL_COLOR_ARRAY );
::glDisableClientState( GL_TEXTURE_COORD_ARRAY );
m_activestreams = stream::none;
}
// opengl display list based variant of the geometry bank
// create() subclass details
@@ -302,7 +314,7 @@ opengl_dlgeometrybank::replace_( geometry_handle const &Geometry ) {
// draw() subclass details
void
opengl_dlgeometrybank::draw_( geometry_handle const &Geometry, unsigned int const Streams ) {
opengl_dlgeometrybank::draw_( geometry_handle const &Geometry, stream_units const &Units, unsigned int const Streams ) {
auto &chunkrecord = m_chunkrecords[ Geometry.chunk - 1 ];
if( chunkrecord.streams != Streams ) {
@@ -319,7 +331,7 @@ opengl_dlgeometrybank::draw_( geometry_handle const &Geometry, unsigned int cons
for( auto const &vertex : chunk.vertices ) {
if( Streams & stream::normal ) { ::glNormal3fv( glm::value_ptr( vertex.normal ) ); }
else if( Streams & stream::color ) { ::glColor3fv( glm::value_ptr( vertex.normal ) ); }
if( Streams & stream::texture ) { ::glTexCoord2fv( glm::value_ptr( vertex.texture ) ); }
if( Streams & stream::texture ) { ::glMultiTexCoord2fv( Units.texture, glm::value_ptr( vertex.texture ) ); }
if( Streams & stream::position ) { ::glVertex3fv( glm::value_ptr( vertex.position ) ); }
}
::glEnd();
@@ -404,7 +416,7 @@ geometrybank_manager::draw( geometry_handle const &Geometry, unsigned int const
auto &bankrecord = bank( Geometry );
bankrecord.second = m_garbagecollector.timestamp();
bankrecord.first->draw( Geometry, Streams );
bankrecord.first->draw( Geometry, m_units, Streams );
}
// provides direct access to vertex data of specfied chunk