From c446e8186afa31c8d346383c0db8b8070fa563cd Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 4 Jan 2019 22:54:59 +0800
Subject: =?UTF-8?q?*=E7=BC=96=E8=AF=91jsl=20shader=E5=A4=B1=E8=B4=A5?=
 =?UTF-8?q?=E6=97=B6=E4=BD=BF=E7=94=A8error=20shader?=
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---
 src/libjin-lua/scripts/graphics/graphics.lua | 48 +++++++++++++++++++++++++---
 1 file changed, 43 insertions(+), 5 deletions(-)

(limited to 'src/libjin-lua/scripts/graphics/graphics.lua')

diff --git a/src/libjin-lua/scripts/graphics/graphics.lua b/src/libjin-lua/scripts/graphics/graphics.lua
index ae896d0..3abb64d 100644
--- a/src/libjin-lua/scripts/graphics/graphics.lua
+++ b/src/libjin-lua/scripts/graphics/graphics.lua
@@ -138,7 +138,21 @@ local function compileBuiltInShaders()
 			return col * texel(tex, v.uv);
 		}
 		#END_FRAGMENT_SHADER
-	]] 
+	]]
+    jg.Shaders.Error = jg.newShader[[
+    	#VERTEX_SHADER
+		Vertex vert(Vertex v)
+		{
+			return v;
+		}
+		#END_VERTEX_SHADER
+		#FRAGMENT_SHADER
+		Color frag(Color col, Texture tex, Vertex v)
+		{
+			return Color(1, 0, 1, 1);
+		}
+		#END_FRAGMENT_SHADER
+    ]]
 end
 
 local _init = jg.init
@@ -155,10 +169,6 @@ jg.init = function(setting)
     return initialized 
 end
 
-jg.unuseShader = function()
-    jg.useShader(jg.Shaders.Default)
-end
-
 -- Reset all attributes to default value.
 jg.reset = function()
     jg.setColor(255, 255, 255, 255)
@@ -167,3 +177,31 @@ jg.reset = function()
     jg.unsetFont()
     jg.unuseShader()
 end
+
+jg.unuseShader = function()
+    jg.useShader(jg.Shaders.Default)
+end
+
+local _newShader = jg.newShader
+
+jg.newShader = function(program) 
+    local shader = _newShader(program)
+    if shader == nil then 
+        jin.log.error("Compile shader failed:\n" .. debug.traceback())
+        return jg.Shaders.Error
+    else
+        return shader
+    end
+end
+
+local _newShaderf = jg.newShaderf
+
+jg.newShaderf = function(file)
+    local shader = _newShaderf(file)
+    if shader == nil then 
+        jin.log.error("Compile shader failed:\n" .. debug.traceback())
+        return jg.Shaders.Error
+    else
+        return shader
+    end
+end
-- 
cgit v1.1-26-g67d0