Add Thin3d support to draw_text (Qt not touched)

thin3d/thin3d.cpp

@@ -13,7 +13,7 @@ static const char * const hlslFsTexCol =
 "struct PS_INPUT { float4 color : COLOR0; float2 uv : TEXCOORD0; };\n"
 "sampler2D tex0 : register(s0);\n"
 "float4 main(PS_INPUT input) : COLOR0 {\n"
-"  return input.color * tex2D(tex0, input.uv).bgra;\n"
+"  return input.color * tex2D(tex0, input.uv);\n"
 "}\n";
 
 static const char * const glsl_fsCol =