Add overloads of keyframe uniform statements without size suffixes

[libs/gl.git] / source / uniformblock.cpp

diff --git a/source/uniformblock.cpp b/source/uniformblock.cpp
index 498973f91de39dccf64512a00e0eceb1b3b2d63b..be30ce5b101420364b5bcba45722f00842e16099 100644 (file)
--- a/source/uniformblock.cpp
+++ b/source/uniformblock.cpp
@@ -15,6 +15,7 @@ namespace Msp {
 namespace GL {
 
 UniformBlock::UniformBlock():
+       size(0),
        buf_range(0)
 {
        static Require _req(ARB_shader_objects);
@@ -22,10 +23,13 @@ UniformBlock::UniformBlock():
 
 UniformBlock::UniformBlock(unsigned s):
        size(s),
-       data(size),
        buf_range(0)
 {
        static Require _req(ARB_uniform_buffer_object);
+
+       if(!size)
+               throw invalid_argument("UniformBlock::UniformBlock");
+       data.resize(size);
 }
 
 UniformBlock::~UniformBlock()
@@ -44,35 +48,46 @@ void UniformBlock::offset_changed()
        buf_range = 0;
 }
 
-void UniformBlock::upload_data() const
+void UniformBlock::upload_data(char *target) const
 {
        if(!buf_range)
                buf_range = new BufferRange(*get_buffer(), get_offset(), size);
-       buf_range->data(&data[0]);
+
+       if(target)
+               copy(data.begin(), data.end(), target);
+       else
+               buf_range->data(&data[0]);
 }
 
 void UniformBlock::attach(int index, const Uniform &uni)
 {
+       if(size)
+               throw invalid_operation("UniformBlock::attach");
+
        uniforms[index] = &uni;
 }
 
 void UniformBlock::attach(const Program::UniformInfo &info, const Uniform &uni)
 {
-       uniforms[info.location] = &uni;
-       if(get_buffer())
+       if(size)
        {
                uni.store(info, &data[info.location]);
                dirty = true;
        }
+       else
+               uniforms[info.location] = &uni;
 }
 
 void UniformBlock::apply(int index) const
 {
-       if((index>=0) != (get_buffer()!=0))
+       if((index>=0) != (size>0))
                throw invalid_operation("UniformBlock::apply");
 
-       if(get_buffer())
+       if(size)
        {
+               if(!get_buffer())
+                       throw invalid_operation("UniformBlock::apply");
+
                if(dirty)
                        update_buffer();
                buf_range->bind_to(UNIFORM_BUFFER, index);