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LibGL: Implement glGetProgramiv

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Stephan Unverwerth 2022-08-28 16:34:17 +02:00 • committed by Andrew Kaster
parent 424e0a2792
commit 1b7b6e6c91
6 changed files with 56 additions and 0 deletions
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35
Userland/Libraries/LibGL/Shader.cpp
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@ -177,4 +177,39 @@ void GLContext::gl_use_program(GLuint program)
m_current_program = it->value;
}
void GLContext::gl_get_program(GLuint program, GLenum pname, GLint* params)
{
auto it = m_allocated_programs.find(program);
// FIXME: implement check "GL_INVALID_VALUE is generated if program is not a value generated by OpenGL."
RETURN_WITH_ERROR_IF(it == m_allocated_programs.end(), GL_INVALID_OPERATION);
// FIXME: implement check "GL_INVALID_OPERATION is generated if pname is GL_GEOMETRY_VERTICES_OUT, GL_GEOMETRY_INPUT_TYPE, or GL_GEOMETRY_OUTPUT_TYPE, and program does not contain a geometry shader."
// FIXME: implement all the other allowed pname values (https://registry.khronos.org/OpenGL-Refpages/gl4/html/glGetProgram.xhtml)
RETURN_WITH_ERROR_IF(pname != GL_DELETE_STATUS
&& pname != GL_LINK_STATUS
&& pname != GL_INFO_LOG_LENGTH,
GL_INVALID_ENUM);
// FIXME: implement check "GL_INVALID_OPERATION is generated if pname is GL_COMPUTE_WORK_GROUP_SIZE and program does not contain a binary for the compute shader stage."
switch (pname) {
case GL_DELETE_STATUS:
// FIXME: Return the actual delete status once we implement this missing feature
*params = GL_FALSE;
break;
case GL_LINK_STATUS:
*params = it->value->link_status() ? GL_TRUE : GL_FALSE;
break;
case GL_INFO_LOG_LENGTH:
*params = it->value->info_log_length();
break;
default:
VERIFY_NOT_REACHED();
}
}
}