From 65bafdc682db46f0f115374ad39f1fbc348832ac Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Mon, 20 Aug 2018 11:51:32 +0800
Subject: *update

---
 src/lua/modules/graphics/luaopen_JSL.cpp | 145 +++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 src/lua/modules/graphics/luaopen_JSL.cpp

(limited to 'src/lua/modules/graphics/luaopen_JSL.cpp')

diff --git a/src/lua/modules/graphics/luaopen_JSL.cpp b/src/lua/modules/graphics/luaopen_JSL.cpp
new file mode 100644
index 0000000..c7a257a
--- /dev/null
+++ b/src/lua/modules/graphics/luaopen_JSL.cpp
@@ -0,0 +1,145 @@
+#include "lua/modules/luax.h"
+#include "lua/common/common.h"
+#include "libjin/jin.h"
+
+namespace jin
+{
+namespace lua
+{
+    
+	using namespace jin::graphics;
+
+	typedef Texture Image;
+
+    static inline Ref<JSLProgram>& checkJSLProgram(lua_State* L)
+    {
+        Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_SHADER);
+		return proxy->getRef<JSLProgram>();
+    }
+
+    static enum VARIABLE_TYPE
+    {
+        INVALID = 0,
+
+        NUMBER,
+        IMAGE,
+        CANVAS,
+        VEC2,
+        VEC3,
+        VEC4, 
+        COLOR,
+    };
+
+    static VARIABLE_TYPE strToType(const char* str)
+    {
+        std::string s = std::string(str);
+        if      (s == "number") return NUMBER;
+        else if (s == "Image")  return IMAGE;
+        else if (s == "Canvas") return CANVAS;
+        else if (s == "vec2")   return VEC2;
+        else if (s == "vec3")   return VEC3;
+        else if (s == "vec4")   return VEC4;
+        else if (s == "Color")  return COLOR;
+        else return INVALID;
+    }
+
+    /**
+    * Use send function send variables to JSL program. 
+    */
+    static int l_send(lua_State* L)
+    {
+		Ref<JSLProgram>& ref = checkJSLProgram(L);
+        // number Image Texel
+        const char* typestr = luax_checkstring(L, 2);
+        // variable name 
+        const char* variable = luax_checkstring(L, 3);
+        if (typestr != nullptr)
+        {
+            int type = strToType(typestr);
+            switch (type)
+            {
+            case NUMBER:
+            {
+                float number = luax_checknumber(L, 4);
+                ref->sendFloat(variable, number);
+                break;
+            }
+            case IMAGE:
+            {
+                Proxy* proxy = (Proxy*)luax_checktype(L, 4, JIN_GRAPHICS_IMAGE);
+				Ref<Image>& tex = proxy->getRef<Image>();
+				ref->sendTexture(variable, tex.getObject());
+                break;
+            }
+            case CANVAS:
+            {
+                Proxy* proxy = (Proxy*)luax_checktype(L, 4, JIN_GRAPHICS_CANVAS);
+				Ref<Canvas>& canvas = proxy->getRef<Canvas>();
+                ref->sendCanvas(variable, canvas.getObject());
+                break;
+            }
+            case VEC2:
+            {
+                float x = luax_checknumber(L, 4);
+                float y = luax_checknumber(L, 5);
+				ref->sendVec2(variable, x, y);
+                break;
+            }
+            case VEC3:
+            {
+                float x = luax_checknumber(L, 4);
+                float y = luax_checknumber(L, 5);
+                float z = luax_checknumber(L, 6);
+				ref->sendVec3(variable, x, y, z);
+                break;
+            }
+            case VEC4:
+            {
+                float x = luax_checknumber(L, 4);
+                float y = luax_checknumber(L, 5);
+                float z = luax_checknumber(L, 6);
+                float w = luax_checknumber(L, 7);
+				ref->sendVec4(variable, x, y, z, w);
+                break;
+            }
+            case COLOR:
+            {
+                color col;
+                col.rgba.r = luax_checkinteger(L, 4);
+                col.rgba.g = luax_checkinteger(L, 5);
+                col.rgba.b = luax_checkinteger(L, 6);
+                col.rgba.a = luax_checkinteger(L, 7);
+				ref->sendColor(variable, &col);
+                break;
+            }
+            default:
+                return 0;
+            }
+        }
+        return 1; 
+    }
+
+    static int l_gc(lua_State* L)
+    {
+        Proxy* proxy = (Proxy*)luax_checktype(L, 1, JIN_GRAPHICS_SHADER);
+        proxy->release();
+        return 0;
+    }
+
+    static const luaL_Reg f[] = {
+        { "__gc",  l_gc   },
+        { "send",  l_send },
+        { 0,       0      }
+    };
+
+    /**
+    * JSL program
+    */
+    int luaopen_JSL(lua_State* L)
+    {
+        luax_newtype(L, JIN_GRAPHICS_SHADER, f);
+        return 0;
+    }
+
+}
+}
\ No newline at end of file
-- 
cgit v1.1-26-g67d0