From a077eb38b01292611f4f6031b75e3e2c1c20f06e Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 16 Aug 2019 08:54:08 +0800
Subject: *misc
---
.../Graphics/binding/GPUBuffer.binding.cpp | 118 +++++++++++++++++++++
1 file changed, 118 insertions(+)
create mode 100644 Source/modules/asura-core/Graphics/binding/GPUBuffer.binding.cpp
(limited to 'Source/modules/asura-core/Graphics/binding/GPUBuffer.binding.cpp')
diff --git a/Source/modules/asura-core/Graphics/binding/GPUBuffer.binding.cpp b/Source/modules/asura-core/Graphics/binding/GPUBuffer.binding.cpp
new file mode 100644
index 0000000..8c39a59
--- /dev/null
+++ b/Source/modules/asura-core/Graphics/binding/GPUBuffer.binding.cpp
@@ -0,0 +1,118 @@
+#include <stdlib.h>
+
+#include "../image.h"
+#include "../GPUBuffer.h"
+
+using namespace std;
+using namespace Luax;
+
+namespace_begin(AsuraEngine)
+namespace_begin(Graphics)
+
+
+ LUAX_REGISTRY(GPUBuffer)
+ {
+ LUAX_REGISTER_METHODS(state,
+ { "Fill", _Fill },
+ { "GetSize", _GetSize },
+ { "GetCount", _GetCount }
+ );
+ }
+
+ LUAX_POSTPROCESS(GPUBuffer)
+ {
+ LUAX_REGISTER_ENUM(state, "EBufferType",
+ { "VERTEX", BUFFER_TYPE_VERTEX },
+ { "INDEX", BUFFER_TYPE_INDEX }
+ );
+ LUAX_REGISTER_ENUM(state, "EBufferUsage",
+ { "STREAM", BUFFER_USAGE_STREAM },
+ { "DYNAMIC", BUFFER_USAGE_DYNAMIC },
+ { "STATIC", BUFFER_USAGE_STATIC }
+ );
+ LUAX_REGISTER_ENUM(state, "EBufferDataType",
+ { "INT", BUFFER_DATA_TYPE_INT },
+ { "FLOAT", BUFFER_DATA_TYPE_FLOAT },
+ { "UNSIGNED_BYTE", BUFFER_DATA_TYPE_UNSIGNED_BYTE }
+ );
+
+ }
+
+ // buffer = GPUBuffer.New(bufferType, bufferUsage, bufferDataType, size)
+ // buffer = GPUBuffer.New(image)
+ // buffer = GPUBuffer.New(mesh2d)
+ // buffer = GPUBuffer.New(canvas)
+ // buffer = GPUBuffer.New(shape)
+ //LUAX_IMPL_METHOD(GPUBuffer, _New)
+ //{
+ // LUAX_STATE(L);
+
+ // return 0;
+ //}
+
+ // gpubuffer:Fill({data_unit_list}, offseti)
+ // data_unit_list ��������ݵ�table
+ // offseti : ��ʼ���ǵĵط����ڵ�����(��0��ʼ��
+ LUAX_IMPL_METHOD(GPUBuffer, _Fill)
+ {
+ LUAX_PREPARE(L, GPUBuffer);
+
+ // ʹ��buffer��Ӧ������������buffer���ڵ�һ�ε���ʱ���ʼ��size��С��buffer��Ȼ����䡣
+ int offset = state.GetValue(3, 0);
+ int count = lua_objlen(L, 2);
+ int size = count * self->GetDataTypeSize();
+ byte* data = (byte*)malloc(size);
+ int unit = self->GetDataTypeSize();
+ int i = 1;
+ lua_rawgeti(L, 2, i);
+ while (!lua_isnil(L, -1))
+ {
+ switch (self->m_DataType)
+ {
+ case GL_INT:
+ {
+ int n = state.CheckValue<int>(-1);
+ memcpy(data + (i - 1)*unit, &n, unit);
+ break;
+ }
+ case GL_FLOAT:
+ {
+ float n = state.CheckValue<float>(-1);
+ memcpy(data + (i - 1)*unit, &n, unit);
+ break;
+ }
+ case GL_UNSIGNED_BYTE:
+ {
+ unsigned char n = state.CheckValue<unsigned char>(-1);
+ memcpy(data + (i - 1)*unit, &n, unit);
+ break;
+ }
+ }
+ state.Pop(1); // value
+ lua_rawgeti(L, 2, ++i);
+ }
+ state.Pop(); // nil
+
+ self->Fill(data, size, offset * unit);
+
+ free(data);
+ return 0;
+ }
+
+ // gpubuffer:GetSize()
+ LUAX_IMPL_METHOD(GPUBuffer, _GetSize)
+ {
+ LUAX_PREPARE(L, GPUBuffer);
+ state.Push(self->m_Size);
+ return 0;
+ }
+
+ LUAX_IMPL_METHOD(GPUBuffer, _GetCount)
+ {
+ LUAX_PREPARE(L, GPUBuffer);
+ state.Push(self->m_Size / self->GetDataTypeSize());
+ return 0;
+ }
+
+ }
+}
--
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