X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Funiformblock.cpp;h=256858580b9721a60663cbc0b80dd282c7a6e7db;hp=af4016ee5da8b32ad926689e0c211a3b0dbc4042;hb=7ef75a4c4dbfc437e466381dd67c23357e607b82;hpb=9b3bce7ae76ff8c0c81315d2505ea96bf422a318

diff --git a/source/core/uniformblock.cpp b/source/core/uniformblock.cpp
index af4016ee..25685858 100644
--- a/source/core/uniformblock.cpp
+++ b/source/core/uniformblock.cpp
@@ -1,74 +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 "deviceinfo.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 {
 
-DefaultUniformBlock::DefaultUniformBlock()
-{
-	static Require _req(ARB_shader_objects);
-}
-
-void DefaultUniformBlock::attach(const Program::UniformInfo &info, const Uniform &uni)
-{
-	if(info.block->bind_point>=0)
-		throw invalid_argument("DefaultUniformBlock::attach");
+UniformBlock::UniformBlock(const ReflectData::UniformBlockInfo &info):
+	UniformBlockBackend(info.bind_point>=0),
+	data(info.data_size)
+{ }
 
-	attach(info.location, uni);
-}
-
-void DefaultUniformBlock::attach(int index, const Uniform &uni)
+size_t UniformBlock::get_alignment() const
 {
-	if(index<0)
-		return;
-
-	if(static_cast<unsigned>(index)>=uniforms.size())
-		uniforms.resize(index+1, 0);
-	uniforms[index] = &uni;
+	return Device::get_current().get_info().limits.uniform_buffer_alignment;
 }
 
-void DefaultUniformBlock::apply() const
+void UniformBlock::store(const ReflectData::UniformInfo &info, size_t array_size, const void *value)
 {
-	for(unsigned i=0; i<uniforms.size(); ++i)
-		if(uniforms[i])
-			uniforms[i]->apply(i);
-}
+	array_size = min(array_size, max<size_t>(info.array_size, 1U));
 
+	size_t store_offset;
+	bool packed;
+	if(info.block->bind_point<0)
+	{
+		if(info.location<0)
+			return;
 
-BufferBackedUniformBlock::BufferBackedUniformBlock(unsigned s):
-	size(s),
-	data(size)
-{
-	static Require _req(ARB_shader_objects);
-	static Require _req2(ARB_uniform_buffer_object);
+		store_offset = info.location*16;
+		packed = true;
+	}
+	else
+	{
+		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;
+	}
 
-	if(!size)
-		throw invalid_argument("BufferBackedUniformBlock::BufferBackedUniformBlock");
-}
+	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
+	{
+		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;
+		}
+	}
 
-unsigned BufferBackedUniformBlock::get_alignment() const
-{
-	return Limits::get_global().uniform_buffer_alignment;
+	dirty = true;
 }
 
-void BufferBackedUniformBlock::attach(const Program::UniformInfo &info, const Uniform &uni)
+void UniformBlock::check_store_range(size_t offs, size_t size)
 {
-	if(info.block->bind_point<0)
-		throw invalid_argument("BufferBackedUniformBlock::attach");
-
-	uni.store(info, &data[info.offset]);
-	dirty = true;
+#ifdef DEBUG
+	if(offs>data.size() || offs+size>data.size())
+		throw out_of_range("UniformBlock::store");
+#endif
 }
 
 } // namespace GL