#include <stdexcept>
+#include <msp/gl/extensions/arb_shader_objects.h>
+#include <msp/gl/extensions/arb_uniform_buffer_object.h>
#include "buffer.h"
#include "color.h"
#include "error.h"
UniformBlock::UniformBlock():
buf_range(0)
-{ }
+{
+ static Require _req(ARB_shader_objects);
+}
UniformBlock::UniformBlock(unsigned s):
size(s),
data(size),
buf_range(0)
-{ }
+{
+ static Require _req(ARB_uniform_buffer_object);
+}
UniformBlock::~UniformBlock()
{
delete buf_range;
}
+unsigned UniformBlock::get_alignment() const
+{
+ return BufferRange::get_uniform_buffer_alignment();
+}
+
void UniformBlock::offset_changed()
{
delete buf_range;
void UniformBlock::upload_data() const
{
if(!buf_range)
- buf_range = new BufferRange(*buffer, buffer_offset, size);
+ buf_range = new BufferRange(*get_buffer(), get_offset(), size);
buf_range->data(&data[0]);
}
void UniformBlock::attach(const Program::UniformInfo &info, const Uniform &uni)
{
uniforms[info.location] = &uni;
- if(buffer)
+ if(get_buffer())
{
uni.store(info, &data[info.location]);
dirty = true;
void UniformBlock::apply(int index) const
{
- if((index>=0) != (buffer!=0))
+ if((index>=0) != (get_buffer()!=0))
throw invalid_operation("UniformBlock::apply");
- if(buffer)
+ if(get_buffer())
{
if(dirty)
- update_buffer_data();
+ update_buffer();
buf_range->bind_to(UNIFORM_BUFFER, index);
}
else