[OpenGL][Program] check macro to throw no_ogl

opencv · Aug 30, 2024 · a702432 · a702432
1 parent ff9a0ec
commit a702432
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/modules/core/src/opengl.cpp b/modules/core/src/opengl.cpp
@@ -1407,11 +1407,20 @@ void cv::ogl::Arrays::bind() const
 
 cv::ogl::Program::Program()
 {
+#ifndef HAVE_OPENGL
+    throw_no_ogl();
+#else
     program_ = gl::CreateProgram();
+#endif
 }
 
 void cv::ogl::Program::attachShaders(const std::string& fragment_shader_source, const std::string& vertex_shader_source)
 {
+#ifndef HAVE_OPENGL
+    CV_UNUSED(fragment_shader_source);
+    CV_UNUSED(vertex_shader_source);
+    throw_no_ogl();
+#else
     GLuint fragment_shader = gl::CreateShader(gl::FRAGMENT_SHADER);
     GLuint vertex_shader = gl::CreateShader(gl::VERTEX_SHADER);
     const char* fragment_source = fragment_shader_source.c_str();
@@ -1424,10 +1433,14 @@ void cv::ogl::Program::attachShaders(const std::string& fragment_shader_source,
     gl::AttachShader(program_, vertex_shader);
     gl::LinkProgram(program_);
     gl::UseProgram(program_);
+#endif
 };
 
 std::string cv::ogl::Program::getDefaultFragmentShader()
 {
+#ifndef HAVE_OPENGL
+    throw_no_ogl();
+#else
     return
         "#version 330 core\n"
         "in vec2 TexCoord;\n"
@@ -1436,10 +1449,14 @@ std::string cv::ogl::Program::getDefaultFragmentShader()
         "void main() {\n"
         "   color = texture(ourTexture, TexCoord);\n"
         "}\n";
+#endif
 }
 
 std::string cv::ogl::Program::getDefaultVertexShader()
 {
+#ifndef HAVE_OPENGL
+    throw_no_ogl()
+#else
     return
         "#version 330 core\n"
         "layout (location = 0) in vec3 position;\n"
@@ -1450,11 +1467,16 @@ std::string cv::ogl::Program::getDefaultVertexShader()
         "   gl_Position = transform * vec4(position, 1.0);\n"
         "   TexCoord = texCoord;\n"
         "}\n";
+#endif
 }
 
 unsigned int cv::ogl::Program::getProgramId()
 {
+#ifndef HAVE_OPENGL
+    throw_no_ogl()
+#else
     return program_;
+#endif
 }
 
 ////////////////////////////////////////////////////////////////////////