GRAPHICS: Add binding methods with transparency to ShaderMaterial

xoreos · Nov 17, 2018 · 24fa50e · 24fa50e
1 parent e69ada5
commit 24fa50e
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Showing 2 changed files with 27 additions and 0 deletions.
diff --git a/src/graphics/shader/shadermaterial.cpp b/src/graphics/shader/shadermaterial.cpp
@@ -231,6 +231,30 @@ void ShaderMaterial::bindProgram(Shader::ShaderProgram *program) {
 	}
 }
 
+void ShaderMaterial::bindProgramNoFade(Shader::ShaderProgram *program) {
+	for (uint32 i = 0; i < _variableData.size(); i++) {
+		if (_alphaIndex != i) {
+			ShaderMan.bindShaderVariable(program->fragmentObject->variablesCombined[i], program->fragmentVariableLocations[i], _variableData[i].data);
+		}
+	}
+}
+
+void ShaderMaterial::bindProgram(Shader::ShaderProgram *program, float alpha) {
+	for (uint32 i = 0; i < _variableData.size(); i++) {
+		if (_alphaIndex == i) {
+			ShaderMan.bindShaderVariable(program->fragmentObject->variablesCombined[i], program->fragmentVariableLocations[i], &alpha);
+		} else {
+			ShaderMan.bindShaderVariable(program->fragmentObject->variablesCombined[i], program->fragmentVariableLocations[i], _variableData[i].data);
+		}
+	}
+}
+
+void ShaderMaterial::bindFade(Shader::ShaderProgram *program, float alpha) {
+	if (_alphaIndex != 0xFFFFFFFF) {
+		ShaderMan.bindShaderVariable(program->fragmentObject->variablesCombined[_alphaIndex], program->fragmentVariableLocations[_alphaIndex], &alpha);
+	}
+}
+
 void ShaderMaterial::bindGLState() {
 	if (_flags & SHADER_MATERIAL_TRANSPARENT) {
 		glBlendFunc(ShaderMaterialBlendfuncArray[(_flags >> SHADER_MATERIAL_TRANSPARENT_SRC_SHIFT) & SHADER_MATERIAL_TRANSPARENT_SHIFT_MASK],

diff --git a/src/graphics/shader/shadermaterial.h b/src/graphics/shader/shadermaterial.h
@@ -86,6 +86,9 @@ class ShaderMaterial {
 	bool isVariableOwned(const Common::UString &name) const;
 
 	void bindProgram(Shader::ShaderProgram *program);
+	void bindProgramNoFade(Shader::ShaderProgram *program);
+	void bindProgram(Shader::ShaderProgram *program, float fade);
+	void bindFade(Shader::ShaderProgram *program, float fade);
 
 	void bindGLState();
 	void unbindGLState();