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-rw-r--r--drivers/gles2/shader_compiler_gles2.cpp61
-rw-r--r--drivers/gles2/shader_compiler_gles2.h7
2 files changed, 64 insertions, 4 deletions
diff --git a/drivers/gles2/shader_compiler_gles2.cpp b/drivers/gles2/shader_compiler_gles2.cpp
index 10da30acca..157f2e398b 100644
--- a/drivers/gles2/shader_compiler_gles2.cpp
+++ b/drivers/gles2/shader_compiler_gles2.cpp
@@ -431,6 +431,42 @@ String ShaderCompilerGLES2::dump_node_code(SL::Node *p_node,int p_level,bool p_a
// code="get_texpos(gl_ProjectionMatrixInverse * texture2D( depth_texture, clamp(("+dump_node_code(onode->arguments[1],p_level)+").xy,vec2(0.0),vec2(1.0))*gl_LightSource[5].specular.zw+gl_LightSource[5].specular.xy)";
//code="(texture2D( screen_texture, ("+dump_node_code(onode->arguments[1],p_level)+").xy).rgb";
break;
+ } else if (custom_h && callfunc=="cosh_custom") {
+
+ if (!cosh_used) {
+ global_code= "float cosh_custom(float val)\n"\
+ "{\n"\
+ " float tmp = exp(val);\n"\
+ " float cosH = (tmp + 1.0 / tmp) / 2.0;\n"\
+ " return cosH;\n"\
+ "}\n"+global_code;
+ cosh_used=true;
+ }
+ code="cosh_custom("+dump_node_code(onode->arguments[1],p_level)+"";
+ } else if (custom_h && callfunc=="sinh_custom") {
+
+ if (!sinh_used) {
+ global_code= "float sinh_custom(float val)\n"\
+ "{\n"\
+ " float tmp = exp(val);\n"\
+ " float sinH = (tmp - 1.0 / tmp) / 2.0;\n"\
+ " return sinH;\n"\
+ "}\n"+global_code;
+ sinh_used=true;
+ }
+ code="sinh_custom("+dump_node_code(onode->arguments[1],p_level)+"";
+ } else if (custom_h && callfunc=="tanh_custom") {
+
+ if (!tanh_used) {
+ global_code= "float tanh_custom(float val)\n"\
+ "{\n"\
+ " float tmp = exp(val);\n"\
+ " float tanH = (tmp - 1.0 / tmp) / (tmp + 1.0 / tmp);\n"\
+ " return tanH;\n"\
+ "}\n"+global_code;
+ tanh_used=true;
+ }
+ code="tanh_custom("+dump_node_code(onode->arguments[1],p_level)+"";
} else {
@@ -634,6 +670,9 @@ Error ShaderCompilerGLES2::compile(const String& p_code, ShaderLanguage::ShaderT
r_flags.use_var2_interp=false;
r_flags.uses_normalmap=false;
r_flags.uses_normal=false;
+ sinh_used=false;
+ tanh_used=false;
+ cosh_used=false;
String error;
int errline,errcol;
@@ -662,12 +701,18 @@ Error ShaderCompilerGLES2::compile(const String& p_code, ShaderLanguage::ShaderT
r_flags.uses_shadow_color=uses_shadow_color;
r_code_line=code;
r_globals_line=global_code;
-
return OK;
}
ShaderCompilerGLES2::ShaderCompilerGLES2() {
+#ifdef GLEW_ENABLED
+ //use custom functions because they are not supported in GLSL120
+ custom_h=true;
+#else
+ custom_h=false;
+#endif
+
replace_table["bool"]= "bool";
replace_table["float" ]= "float";
replace_table["vec2" ]= "vec2";
@@ -686,9 +731,17 @@ ShaderCompilerGLES2::ShaderCompilerGLES2() {
replace_table["acos" ]= "acos";
replace_table["atan" ]= "atan";
replace_table["atan2"]= "atan";
- replace_table["sinh" ]= "sinh";
- replace_table["cosh" ]= "cosh";
- replace_table["tanh" ]= "tanh";
+
+ if (custom_h) {
+ replace_table["sinh" ]= "sinh_custom";
+ replace_table["cosh" ]= "cosh_custom";
+ replace_table["tanh" ]= "tanh_custom";
+ } else {
+ replace_table["sinh" ]= "sinh";
+ replace_table["cosh" ]= "cosh";
+ replace_table["tanh" ]= "tanh";
+ }
+
replace_table["pow" ]= "pow";
replace_table["exp" ]= "exp";
replace_table["log" ]= "log";
diff --git a/drivers/gles2/shader_compiler_gles2.h b/drivers/gles2/shader_compiler_gles2.h
index 6dfc213994..43902a7536 100644
--- a/drivers/gles2/shader_compiler_gles2.h
+++ b/drivers/gles2/shader_compiler_gles2.h
@@ -56,6 +56,13 @@ private:
bool uses_worldvec;
bool vertex_code_writes_vertex;
bool uses_shadow_color;
+
+ bool sinh_used;
+ bool tanh_used;
+ bool cosh_used;
+
+ bool custom_h;
+
Flags *flags;
StringName vname_discard;