X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Funiformblock.cpp;h=952fd2fde0f736bfab861938a0682a411d1e5389;hp=cc8945cf2093358d7df19ccebfe5e92ee9fffa61;hb=HEAD;hpb=7aaec9a70b8d7733429bec043f8e33e02956f266

diff --git a/source/core/uniformblock.cpp b/source/core/uniformblock.cpp
index cc8945cf..952fd2fd 100644
--- a/source/core/uniformblock.cpp
+++ b/source/core/uniformblock.cpp
@@ -1,90 +1,93 @@
-#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"
-#include "matrix.h"
-#include "uniform.h"
+#include <algorithm>
+#include "device.h"
 #include "uniformblock.h"
-#include "vector.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-UniformBlock::UniformBlock():
-	size(0),
-	buf_range(0)
-{
-	static Require _req(ARB_shader_objects);
-}
-
-UniformBlock::UniformBlock(unsigned s):
-	size(s),
-	buf_range(0)
-{
-	static Require _req(ARB_uniform_buffer_object);
-
-	if(!size)
-		throw invalid_argument("UniformBlock::UniformBlock");
-	data.resize(size);
-}
-
-UniformBlock::~UniformBlock()
-{
-	delete buf_range;
-}
+UniformBlock::UniformBlock(const ReflectData::UniformBlockInfo &info):
+	UniformBlockBackend(info.bind_point>=0),
+	data(info.data_size)
+{ }
 
-unsigned UniformBlock::get_alignment() const
+size_t UniformBlock::get_alignment() const
 {
-	return BufferRange::get_uniform_buffer_alignment();
+	return Device::get_current().get_info().limits.uniform_buffer_alignment;
 }
 
-void UniformBlock::location_changed(Buffer *buf, unsigned off, unsigned) const
+void UniformBlock::store(const ReflectData::UniformInfo &info, size_t array_size, const void *value)
 {
-	delete buf_range;
-	buf_range = new BufferRange(*buf, off, size);
-}
-
-void UniformBlock::attach(int index, const Uniform &uni)
-{
-	if(size)
-		throw invalid_operation("UniformBlock::attach");
-
-	uniforms[index] = &uni;
-}
+	array_size = min(array_size, max<size_t>(info.array_size, 1U));
 
-void UniformBlock::attach(const Program::UniformInfo &info, const Uniform &uni)
-{
-	if(size)
+	size_t store_offset;
+	bool packed;
+	if(info.block->bind_point==ReflectData::DEFAULT_BLOCK)
 	{
-		uni.store(info, &data[info.location]);
-		dirty = true;
+		if(info.location<0)
+			return;
+
+		store_offset = info.location*16;
+		packed = true;
 	}
 	else
-		uniforms[info.location] = &uni;
-}
-
-void UniformBlock::apply(int index) const
-{
-	if((index>=0) != (size>0))
-		throw invalid_operation("UniformBlock::apply");
-
-	if(size)
 	{
-		if(!get_buffer())
-			throw invalid_operation("UniformBlock::apply");
+		store_offset = info.offset;
+		if(array_size!=1 && info.array_stride!=get_type_size(info.type))
+			packed = false;
+		else if(is_matrix(info.type))
+			packed = (info.matrix_stride==get_type_size(get_matrix_column_type(info.type)));
+		else
+			packed = true;
+	}
 
-		refresh();
-		buf_range->bind_to(UNIFORM_BUFFER, index);
+	char *store_ptr = data.data()+store_offset;
+	const char *value_ptr = static_cast<const char *>(value);
+	if(packed)
+	{
+		size_t value_size = array_size*get_type_size(info.type);
+		check_store_range(store_offset, value_size);
+		copy(value_ptr, value_ptr+value_size, store_ptr);
+	}
+	else if(is_matrix(info.type))
+	{
+		unsigned col_size = get_type_size(get_matrix_column_type(info.type));
+		unsigned cols = get_type_size(info.type)/col_size;
+		check_store_range(store_offset, (array_size-1)*info.array_stride+(cols-1)*info.matrix_stride+col_size);
+		for(unsigned i=0; i<array_size; ++i)
+		{
+			char *elem_ptr = store_ptr;
+			for(unsigned j=0; j<cols; ++j)
+			{
+				copy(value_ptr, value_ptr+col_size, elem_ptr);
+				value_ptr += col_size;
+				elem_ptr += info.matrix_stride;
+			}
+			store_ptr += info.array_stride;
+		}
 	}
 	else
 	{
-		for(map<int, const Uniform *>::const_iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
-			i->second->apply(i->first);
+		unsigned elem_size = get_type_size(info.type);
+		check_store_range(store_offset, (array_size-1)*info.array_stride+elem_size);
+		for(unsigned i=0; i<array_size; ++i)
+		{
+			copy(value_ptr, value_ptr+elem_size, store_ptr);
+			value_ptr += elem_size;
+			store_ptr += info.array_stride;
+		}
 	}
+
+	mark_dirty();
+}
+
+void UniformBlock::check_store_range(size_t offs, size_t size)
+{
+#ifdef DEBUG
+	if(offs>data.size() || offs+size>data.size())
+		throw out_of_range("UniformBlock::store");
+#endif
 }
 
 } // namespace GL